[ARM] Replace fp-only-sp and d16 with fp64 and d32.

[simon_tatham]

Summary

Those two subtarget features were awkward because their semantics are
reversed: each one indicates the _lack_ of support for something in
the architecture, rather than the presence. As a consequence, you
don't get the behavior you want if you combine two sets of feature
bits.

Each SubtargetFeature for an FP architecture version now comes in four
versions, one for each combination of those options. So you can still
say (for example) '+vfp2' in a feature string and it will mean what
it's always meant, but there's a new string '+vfp2d16sp' meaning the
version without those extra options.

A lot of this change is just mechanically replacing positive checks
for the old features with negative checks for the new ones. But one
more interesting change is that I've rearranged getFPUFeatures() so
that the main FPU feature is appended to the output list *before*
rather than after the features derived from the Restriction field, so
that -fp64 and -d32 can override defaults added by the main feature.

[t.p.northover]

I like the direction of this change, and the details look correct too.

The one thing I wonder about is whether we should be upgrading .bc files too (or otherwise support fp-only-sp in legacy inputs). I think it's a specialized enough feature that there won't be much older IR being mixed in, but can't be sure there's none. Anyone else got any views?

[ostannard]

For the auto-upgrader, these limited FPUs only exist for microcontrollers, where I doubt any users are keeping bitcode files around for a long time, so I'd be fine with not doing this. I've had a skim through the auto-upgrader code, and I don't see any other target-specific attributes which are handled there, though there are some target-specific intrinsics.

[dmgreen]

I don't think we here care about auto-updating, not supporting bitcode/lto libraries.

llvm/lib/Target/ARM/ARMFastISel.cpp

1363

Some of the formatting here got a little messed up.

[ostannard]

clang/test/Driver/arm-mfpu.c

112

"+d32" ?

llvm/lib/Target/ARM/ARMSubtarget.h

586–587

Are the old functions still used anywhere? If they are not used (much), I think it would be better to just have one set of functions for the base FPU version, and check hasFP64 and hasD32 where needed, to avoid the rick of using the wrong version of these functions.

llvm/test/MC/ARM/armv8.3a-js.s

16

Do you know why this diagnostic got worse?

[simon_tatham]

llvm/test/MC/ARM/armv8.3a-js.s

16

I do now :-) It's because that instruction is invalid for two reasons: firstly, vjcvt requires FP-ARMv8 which the command line has turned off, and secondly, using d18 requires the new d32 feature which the command line has also turned off. So llc -debug reports "Opcode result: multiple types of mismatch, so not reporting near-miss".

[simon_tatham]

I think this should fix all the outstanding review comments on this patch.

[simon_tatham]

llvm/lib/Target/ARM/ARMSubtarget.h

586–587

Indeed, it turned out the old functions weren't used anywhere at all.

[SjoerdMeijer]

There already was consensus that this is was a good change, and also that we don't care about auto-upgrading. With the last minor comments addressed, this looks good I think. Perhaps you can wait with committing until tomorrow morning just in case there are more comments.

[JamesNagurne]

Hi Simon et. al., I'm working on a downstream ARM toolchain and have downstreamed this change into our codebase.
We saw that you've fixed the -mfpu=none issue and have taken that as well, but are still running into some issues.

Prior to your change, the optionset "-mcpu=cortex-m4 -mfloat-abi=hard" created the following target features in the LLVM IR coming out of clang:
"target-features"="+armv7e-m,+d16,+dsp,+fp-only-sp,+hwdiv,+thumb-mode,+vfp4,-crc,-dotprod,-fp16fml,-hwdiv-arm,-ras"

In specific, note the +d16, +fp-only-sp.

After your changes, we're not seeing the associated -d32, -fp64 target features:
"target-cpu"="cortex-m4" "target-features"="+armv7e-m,+dsp,+hwdiv,+thumb-mode,+vfp4,-crc,-dotprod,-fp16fml,-hwdiv-arm,-ras"

As a result, we are getting linktime failures between our libraries, which use "-mcpu=cortex-m4 -mfloat-abi=hard", and our tests, which specifically call out the FPU version being used.
An interesting note is that the target machine table has the following:

def : ProcessorModel<"cortex-m4", CortexM4Model,        [ARMv7em,
                                                         FeatureVFP4_D16_SP,
                                                         FeaturePrefLoopAlign32,
                                                         FeatureHasSlowFPVMLx,
                                                         FeatureUseMISched,
                                                         FeatureUseAA,
                                                         FeatureHasNoBranchPredictor]>;

Would this not mean that we'd expect vfp4-d16-sp when not otherwise specified? If not, then what is the expected behavior of -mfloat-abi=hard in the absence of an -mfpu specification?

Thanks,
J.B. Nagurne
Texas Instruments
Code Generation

[simon_tatham]

Hmm, yes, I see what you mean. It looks to me as if the problem is that llvm::ARM::getFPUFeatures is setting up a feature list including +vfp4, -fp64 and -d32 just as you'd expect, but when it's called from clang::targets::ARMTargetInfo::initFeatureMap in particular, that silently throws away any feature name in the list that doesn't start with +.

I suppose that means getFPUFeatures ought to be more careful, and add the more restricted feature vfp4d16sp in the first place instead of trying to do it by adding full vfp4 and then taking pieces away.

clang/lib/Basic/Targets/ARM.cpp

bool ARMTargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
   DSP = 0;
   Unaligned = 1;
   SoftFloat = SoftFloatABI = false;
   HWDiv = 0;
   DotProd = 0;
   HasFloat16 = true;
 
   // This does not diagnose illegal cases like having both
-  // "+vfpv2" and "+vfpv3" or having "+neon" and "+fp-only-sp".
-  uint32_t HW_FP_remove = 0;
+  // "+vfpv2" and "+vfpv3" or having "+neon" and "-fp64".
   for (const auto &Feature : Features) {
     if (Feature == "+soft-float") {
       SoftFloat = true;
     } else if (Feature == "+soft-float-abi") {
       SoftFloatABI = true;
     } else if (Feature == "+vfp2") {
       FPU |= VFP2FPU;
-      HW_FP |= HW_FP_SP | HW_FP_DP;
+      HW_FP |= HW_FP_SP;
     } else if (Feature == "+vfp3") {
       FPU |= VFP3FPU;
-      HW_FP |= HW_FP_SP | HW_FP_DP;
+      HW_FP |= HW_FP_SP;
     } else if (Feature == "+vfp4") {
       FPU |= VFP4FPU;
-      HW_FP |= HW_FP_SP | HW_FP_DP | HW_FP_HP;
+      HW_FP |= HW_FP_SP | HW_FP_HP;
     } else if (Feature == "+fp-armv8") {
       FPU |= FPARMV8;
-      HW_FP |= HW_FP_SP | HW_FP_DP | HW_FP_HP;
+      HW_FP |= HW_FP_SP | HW_FP_HP;
     } else if (Feature == "+neon") {
       FPU |= NeonFPU;
-      HW_FP |= HW_FP_SP | HW_FP_DP;
+      HW_FP |= HW_FP_SP;
     } else if (Feature == "+hwdiv") {
       HWDiv |= HWDivThumb;
     } else if (Feature == "+hwdiv-arm") {
       HWDiv |= HWDivARM;
     } else if (Feature == "+crc") {
       CRC = 1;
     } else if (Feature == "+crypto") {
       Crypto = 1;
     } else if (Feature == "+dsp") {
       DSP = 1;
-    } else if (Feature == "+fp-only-sp") {
-      HW_FP_remove |= HW_FP_DP;
+    } else if (Feature == "+fp64") {
+      HW_FP |= HW_FP_DP;
     } else if (Feature == "+strict-align") {
       Unaligned = 0;
     } else if (Feature == "+fp16") {
       HW_FP |= HW_FP_HP;
     } else if (Feature == "+fullfp16") {
       HasLegalHalfType = true;
     } else if (Feature == "+dotprod") {
       DotProd = true;
     }
   }
-  HW_FP &= ~HW_FP_remove;
 
   switch (ArchVersion) {
   case 6:
     if (ArchProfile == llvm::ARM::ProfileKind::M)
       LDREX = 0;
     else if (ArchKind == llvm::ARM::ArchKind::ARMV6K)
       LDREX = LDREX_D | LDREX_W | LDREX_H | LDREX_B;
     else

clang/test/CodeGen/arm-target-features.c

 // REQUIRES: arm-registered-target
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabihf -target-cpu cortex-a8 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3
-// CHECK-VFP3: "target-features"="+armv7-a,+dsp,+neon,+thumb-mode,+vfp3"
+// CHECK-VFP3: "target-features"="+armv7-a,+d32,+dsp,+fp64,+neon,+thumb-mode,+vfp3"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabihf -target-cpu cortex-a5 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4
-// CHECK-VFP4: "target-features"="+armv7-a,+dsp,+neon,+thumb-mode,+vfp4"
+// CHECK-VFP4: "target-features"="+armv7-a,+d32,+dsp,+fp64,+neon,+thumb-mode,+vfp4"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabihf -target-cpu cortex-a7 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-DIV
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-a12 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-DIV
 // RUN: %clang_cc1 -triple thumbv7s-linux-gnueabi -target-cpu swift -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-DIV-2
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabihf -target-cpu krait -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-DIV
-// CHECK-VFP4-DIV: "target-features"="+armv7-a,+dsp,+hwdiv,+hwdiv-arm,+neon,+thumb-mode,+vfp4"
-// CHECK-VFP4-DIV-2: "target-features"="+armv7s,+dsp,+hwdiv,+hwdiv-arm,+neon,+thumb-mode,+vfp4"
+// CHECK-VFP4-DIV: "target-features"="+armv7-a,+d32,+dsp,+fp64,+hwdiv,+hwdiv-arm,+neon,+thumb-mode,+vfp4"
+// CHECK-VFP4-DIV-2: "target-features"="+armv7s,+d32,+dsp,+fp64,+hwdiv,+hwdiv-arm,+neon,+thumb-mode,+vfp4"
 
 // RUN: %clang_cc1 -triple armv7-linux-gnueabihf -target-cpu cortex-a15 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-DIV-ARM
 // RUN: %clang_cc1 -triple armv7-linux-gnueabihf -target-cpu cortex-a17 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-DIV-ARM
-// CHECK-VFP4-DIV-ARM: "target-features"="+armv7-a,+dsp,+hwdiv,+hwdiv-arm,+neon,+vfp4,-thumb-mode"
+// CHECK-VFP4-DIV-ARM: "target-features"="+armv7-a,+d32,+dsp,+fp64,+hwdiv,+hwdiv-arm,+neon,+vfp4,-thumb-mode"
 
 // RUN: %clang_cc1 -triple thumbv7s-apple-ios7.0 -target-cpu cyclone -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu cortex-a32 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu cortex-a35 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu cortex-a57 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu cortex-a72 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu cortex-a73 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu exynos-m1 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu exynos-m2 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu exynos-m3 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
-// CHECK-BASIC-V8: "target-features"="+armv8-a,+crc,+crypto,+dsp,+fp-armv8,+hwdiv,+hwdiv-arm,+neon,+thumb-mode"
+// CHECK-BASIC-V8: "target-features"="+armv8-a,+crc,+crypto,+d32,+dsp,+fp-armv8,+fp64,+hwdiv,+hwdiv-arm,+neon,+thumb-mode"
 
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu exynos-m4 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V82
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu exynos-m5 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V82
-// CHECK-BASIC-V82: "target-features"="+armv8.2-a,+crc,+crypto,+dotprod,+dsp,+fp-armv8,+hwdiv,+hwdiv-arm,+neon,+ras,+thumb-mode"
+// CHECK-BASIC-V82: "target-features"="+armv8.2-a,+crc,+crypto,+d32,+dotprod,+dsp,+fp-armv8,+fp64,+hwdiv,+hwdiv-arm,+neon,+ras,+thumb-mode"
 
 // RUN: %clang_cc1 -triple armv8-linux-gnueabi -target-cpu cortex-a53 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8-ARM
-// CHECK-BASIC-V8-ARM: "target-features"="+armv8-a,+crc,+crypto,+dsp,+fp-armv8,+hwdiv,+hwdiv-arm,+neon,-thumb-mode"
+// CHECK-BASIC-V8-ARM: "target-features"="+armv8-a,+crc,+crypto,+d32,+dsp,+fp-armv8,+fp64,+hwdiv,+hwdiv-arm,+neon,-thumb-mode"
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-r5 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-DIV
-// CHECK-VFP3-D16-DIV: "target-features"="+armv7-r,+d16,+dsp,+hwdiv,+hwdiv-arm,+thumb-mode,+vfp3"
+// CHECK-VFP3-D16-DIV: "target-features"="+armv7-r,+dsp,+fp64,+hwdiv,+hwdiv-arm,+thumb-mode,+vfp3"
 
 
 // RUN: %clang_cc1 -triple armv7-linux-gnueabi -target-cpu cortex-r4f -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-THUMB-DIV
-// CHECK-VFP3-D16-THUMB-DIV: "target-features"="+armv7-r,+d16,+dsp,+hwdiv,+vfp3,-thumb-mode"
+// CHECK-VFP3-D16-THUMB-DIV: "target-features"="+armv7-r,+dsp,+fp64,+hwdiv,+vfp3,-thumb-mode"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-r7 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-FP16-DIV
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-r8 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-FP16-DIV
-// CHECK-VFP3-D16-FP16-DIV: "target-features"="+armv7-r,+d16,+dsp,+fp16,+hwdiv,+hwdiv-arm,+thumb-mode,+vfp3"
+// CHECK-VFP3-D16-FP16-DIV: "target-features"="+armv7-r,+dsp,+fp16,+fp64,+hwdiv,+hwdiv-arm,+thumb-mode,+vfp3"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-m4 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-D16-SP-THUMB-DIV
-// CHECK-VFP4-D16-SP-THUMB-DIV: "target-features"="+armv7e-m,+d16,+dsp,+fp-only-sp,+hwdiv,+thumb-mode,+vfp4"
+// CHECK-VFP4-D16-SP-THUMB-DIV: "target-features"="+armv7e-m,+dsp,+hwdiv,+thumb-mode,+vfp4"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-m7 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP5-D16-THUMB-DIV
-// CHECK-VFP5-D16-THUMB-DIV: "target-features"="+armv7e-m,+d16,+dsp,+fp-armv8,+hwdiv,+thumb-mode"
+// CHECK-VFP5-D16-THUMB-DIV: "target-features"="+armv7e-m,+dsp,+fp-armv8,+fp64,+hwdiv,+thumb-mode"
 
 
 // RUN: %clang_cc1 -triple armv7-linux-gnueabi -target-cpu cortex-r4 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-THUMB-DIV
 // CHECK-THUMB-DIV: "target-features"="+armv7-r,+dsp,+hwdiv,-thumb-mode"
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-m3 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-THUMB-DIV-M3
 // CHECK-THUMB-DIV-M3: "target-features"="+armv7-m,+hwdiv,+thumb-mode"
 

 
 // RUN: %clang_cc1 -triple thumbv8m.base-linux-gnueabi -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-ARMV8M-LINUX
 // CHECK-ARMV8M-LINUX: "target-features"="+armv8-m.base,+thumb-mode"
 
 // RUN: %clang_cc1 -triple thumb-linux-gnueabi -target-cpu cortex-m23 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-ARMV8M-M23-LINUX 
 // CHECK-ARMV8M-M23-LINUX: "target-features"="+armv8-m.base,+hwdiv,+thumb-mode"
 
 // RUN: %clang_cc1 -triple thumb-linux-gnueabi -target-cpu cortex-m33 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-ARMV8M-MAIN-LINUX 
-// CHECK-ARMV8M-MAIN-LINUX: "target-features"="+armv8-m.main,+d16,+dsp,+fp-armv8,+fp-only-sp,+hwdiv,+thumb-mode"
+// CHECK-ARMV8M-MAIN-LINUX: "target-features"="+armv8-m.main,+dsp,+fp-armv8,+hwdiv,+thumb-mode"
 
 void foo() {}

clang/test/Driver/arm-mfpu.c

 // Test that different values of -mfpu pick correct ARM FPU target-feature(s).
 
 // RUN: %clang -target arm-linux-eabi %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-DEFAULT %s
 // CHECK-DEFAULT-NOT: "-target-feature" "+soft-float"
 // CHECK-DEFAULT: "-target-feature" "+soft-float-abi"
 // CHECK-DEFAULT-NOT: "-target-feature" "+vfp2"
 // CHECK-DEFAULT-NOT: "-target-feature" "+vfp3"
-// CHECK-DEFAULT-NOT: "-target-feature" "+d16"
 // CHECK-DEFAULT-NOT: "-target-feature" "+neon"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=fpa %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-FPA %s
 // RUN: %clang -target arm-linux-eabi -mfpu=fpe2 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-FPA %s
 // RUN: %clang -target arm-linux-eabi -mfpu=fpe3 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-FPA %s

 // CHECK-SOFT-ABI-FP-3: "-target-feature" "-vfp3"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv3-fp16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-VFP3-FP16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv3-fp16 -mfloat-abi=soft %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-SOFT-ABI-FP-3 %s
 // CHECK-VFP3-FP16-NOT: "-target-feature" "+soft-float"
 // CHECK-VFP3-FP16: "-target-feature" "+soft-float-abi"
-// CHECK-VFP3-FP16: "-target-feature" "-fp-only-sp"
-// CHECK-VFP3-FP16: "-target-feature" "-d16"
 // CHECK-VFP3-FP16: "-target-feature" "+vfp3"
 // CHECK-VFP3-FP16: "-target-feature" "+fp16"
 // CHECK-VFP3-FP16: "-target-feature" "-vfp4"
 // CHECK-VFP3-FP16: "-target-feature" "-fp-armv8"
+// CHECK-VFP3-FP16: "-target-feature" "+fp64"
+// CHECK-VFP3-FP16: "-target-feature" "+d32"
 // CHECK-VFP3-FP16: "-target-feature" "-neon"
 // CHECK-VFP3-FP16: "-target-feature" "-crypto"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=vfp3-d16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-VFP3-D16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv3-d16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-VFP3-D16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv3-d16 -mfloat-abi=soft %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-SOFT-ABI-FP-3 %s
 // CHECK-VFP3-D16-NOT: "-target-feature" "+soft-float"
 // CHECK-VFP3-D16: "-target-feature" "+soft-float-abi"
-// CHECK-VFP3-D16: "-target-feature" "-fp-only-sp"
-// CHECK-VFP3-D16: "-target-feature" "+d16"
 // CHECK-VFP3-D16: "-target-feature" "+vfp3"
 // CHECK-VFP3-D16: "-target-feature" "-vfp4"
 // CHECK-VFP3-D16: "-target-feature" "-fp-armv8"
+// CHECK-VFP3-D16: "-target-feature" "+fp64"
+// CHECK-VFP3-D16-NOT: "-target-feature" "+d32"
 // CHECK-VFP3-D16: "-target-feature" "-neon"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv3-d16-fp16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-VFP3-D16-FP16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv3-d16-fp16 -mfloat-abi=soft %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-SOFT-ABI-FP-3 %s
 // CHECK-VFP3-D16-FP16-NOT: "-target-feature" "+soft-float"
 // CHECK-VFP3-D16-FP16: "-target-feature" "+soft-float-abi"
-// CHECK-VFP3-D16-FP16: "-target-feature" "-fp-only-sp"
-// CHECK-VFP3-D16-FP16: "-target-feature" "+d16"
 // CHECK-VFP3-D16-FP16: "-target-feature" "+vfp3"
 // CHECK-VFP3-D16-FP16: "-target-feature" "+fp16"
 // CHECK-VFP3-D16-FP16: "-target-feature" "-vfp4"
 // CHECK-VFP3-D16-FP16: "-target-feature" "-fp-armv8"
+// CHECK-VFP3-D16-FP16: "-target-feature" "+fp64"
+// CHECK-VFP3-D16-FP16-NOT: "-target-feature" "+d32"
 // CHECK-VFP3-D16-FP16: "-target-feature" "-neon"
 // CHECK-VFP3-D16-FP16: "-target-feature" "-crypto"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv3xd %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-VFP3XD %s
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv3xd -mfloat-abi=soft %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-SOFT-ABI-FP-3 %s
 // CHECK-VFP3XD-NOT: "-target-feature" "+soft-float"
 // CHECK-VFP3XD: "-target-feature" "+soft-float-abi"
-// CHECK-VFP3XD: "-target-feature" "+fp-only-sp"
-// CHECK-VFP3XD: "-target-feature" "+d16"
+// CHECK-VFP3XD-NOT: "-target-feature" "+fp64"
+// CHECK-VFP3XD-NOT: "-target-feature" "+d32"
 // CHECK-VFP3XD: "-target-feature" "+vfp3"
 // CHECK-VFP3XD: "-target-feature" "-fp16"
 // CHECK-VFP3XD: "-target-feature" "-vfp4"
 // CHECK-VFP3XD: "-target-feature" "-fp-armv8"
 // CHECK-VFP3XD: "-target-feature" "-neon"
 // CHECK-VFP3XD: "-target-feature" "-crypto"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv3xd-fp16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-VFP3XD-FP16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv3xd-fp16 -mfloat-abi=soft %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-SOFT-ABI-FP-3 %s
 // CHECK-VFP3XD-FP16-NOT: "-target-feature" "+soft-float"
 // CHECK-VFP3XD-FP16: "-target-feature" "+soft-float-abi"
-// CHECK-VFP3XD-FP16: "-target-feature" "+fp-only-sp"
-// CHECK-VFP3XD-FP16: "-target-feature" "+d16"
 // CHECK-VFP3XD-FP16: "-target-feature" "+vfp3"
 // CHECK-VFP3XD-FP16: "-target-feature" "+fp16"
 // CHECK-VFP3XD-FP16: "-target-feature" "-vfp4"
 // CHECK-VFP3XD-FP16: "-target-feature" "-fp-armv8"
+// CHECK-VFP3XD-FP16-NOT: "-target-feature" "+fp64"
+// CHECK-VFP3XD-FP16-NOT: "-target-feature" "+d32"
 // CHECK-VFP3XD-FP16: "-target-feature" "-neon"
 // CHECK-VFP3XD-FP16: "-target-feature" "-crypto"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=vfp4 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-VFP4 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv4 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-VFP4 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv4 -mfloat-abi=soft %s -### -o %t.o 2>&1 \

 // RUN: %clang -target arm-linux-eabi -mfpu=vfp4-d16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-VFP4-D16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv4-d16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-VFP4-D16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=vfpv4-d16 -mfloat-abi=soft %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-SOFT-ABI-FP-4 %s
 // CHECK-VFP4-D16-NOT: "-target-feature" "+soft-float"
 // CHECK-VFP4-D16: "-target-feature" "+soft-float-abi"
-// CHECK-VFP4-D16: "-target-feature" "-fp-only-sp"
-// CHECK-VFP4-D16: "-target-feature" "+d16"
 // CHECK-VFP4-D16: "-target-feature" "+vfp4"
 // CHECK-VFP4-D16: "-target-feature" "-fp-armv8"
+// CHECK-VFP4-D16: "-target-feature" "+fp64"
+// CHECK-VFP4-D16-NOT: "-target-feature" "+d32"
 // CHECK-VFP4-D16: "-target-feature" "-neon"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=fp4-sp-d16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-FP4-SP-D16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=fpv4-sp-d16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-FP4-SP-D16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=fpv4-sp-d16 -mfloat-abi=soft %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-SOFT-ABI-FP-4 %s
 // CHECK-FP4-SP-D16-NOT: "-target-feature" "+soft-float"
 // CHECK-FP4-SP-D16: "-target-feature" "+soft-float-abi"
-// CHECK-FP4-SP-D16: "-target-feature" "+fp-only-sp"
-// CHECK-FP4-SP-D16: "-target-feature" "+d16"
 // CHECK-FP4-SP-D16: "-target-feature" "+vfp4"
 // CHECK-FP4-SP-D16: "-target-feature" "-fp-armv8"
+// CHECK-FP4-SP-D16-NOT: "-target-feature" "+fp64"
+// CHECK-FP4-SP-D16-NOT: "-target-feature" "+d32"
 // CHECK-FP4-SP-D16: "-target-feature" "-neon"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=fp5-sp-d16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-FP5-SP-D16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=fpv5-sp-d16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-FP5-SP-D16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=fp-armv8-sp-d16 -mfloat-abi=soft %s -### -o %t.o \
 // RUN:   2>&1 | FileCheck --check-prefix=CHECK-SOFT-ABI-FP %s
 // CHECK-FP5-SP-D16-NOT: "-target-feature" "+soft-float"
 // CHECK-FP5-SP-D16: "-target-feature" "+soft-float-abi"
-// CHECK-FP5-SP-D16: "-target-feature" "+fp-only-sp"
-// CHECK-FP5-SP-D16: "-target-feature" "+d16"
 // CHECK-FP5-SP-D16: "-target-feature" "+fp-armv8"
 // CHECK-FP5-SP-D16: "-target-feature" "-neon"
+// CHECK-FP5-SP-D16-NOT: "-target-feature" "+fp64"
+// CHECK-FP5-SP-D16-NOT: "-target-feature" "+d32"
 // CHECK-FP5-SP-D16: "-target-feature" "-crypto"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=fp5-dp-d16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-FP5-DP-D16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=fpv5-dp-d16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-FP5-DP-D16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=fpv5-dp-d16 %s -mfloat-abi=soft -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-SOFT-ABI-FP-5 %s
 // CHECK-FP5-DP-D16-NOT: "-target-feature" "+soft-float"
 // CHECK-FP5-DP-D16: "-target-feature" "+soft-float-abi"
-// CHECK-FP5-DP-D16: "-target-feature" "-fp-only-sp"
-// CHECK-FP5-DP-D16: "-target-feature" "+d16"
 // CHECK-FP5-DP-D16: "-target-feature" "+fp-armv8"
+// CHECK-FP5-DP-D16: "-target-feature" "+fp64"
+// CHECK-FP5-DP-D16-NOT: "-target-feature" "+d32"
 // CHECK-FP5-DP-D16: "-target-feature" "-neon"
 // CHECK-FP5-DP-D16: "-target-feature" "-crypto"
 // CHECK-SOFT-ABI-FP-5: "-target-feature" "+soft-float"
 // CHECK-SOFT-ABI-FP-5: "-target-feature" "+soft-float-abi"
 // CHECK-SOFT-ABI-FP-5: "-target-feature" "-vfp2"
 // CHECK-SOFT-ABI-FP-5: "-target-feature" "-vfp3"
 // CHECK-SOFT-ABI-FP-5: "-target-feature" "-vfp4"
 // CHECK-SOFT-ABI-FP-5: "-target-feature" "-neon"

 // CHECK-SOFT-ABI-FP-6: "-target-feature" "-neon"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=neon-fp16 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-NEON-FP16 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=neon-fp16 -mfloat-abi=soft %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-SOFT-ABI-FP-6 %s
 // CHECK-NEON-FP16-NOT: "-target-feature" "+soft-float"
 // CHECK-NEON-FP16: "-target-feature" "+soft-float-abi"
-// CHECK-NEON-FP16: "-target-feature" "-fp-only-sp"
-// CHECK-NEON-FP16: "-target-feature" "-d16"
 // CHECK-NEON-FP16: "-target-feature" "+vfp3"
 // CHECK-NEON-FP16: "-target-feature" "+fp16"
 // CHECK-NEON-FP16: "-target-feature" "-vfp4"
 // CHECK-NEON-FP16: "-target-feature" "-fp-armv8"
+// CHECK-NEON-FP16: "-target-feature" "+fp64"
+// CHECK-NEON-FP16: "-target-feature" "+d32"
 // CHECK-NEON-FP16: "-target-feature" "+neon"
 // CHECK-NEON-FP16: "-target-feature" "-crypto"
 
 // RUN: %clang -target arm-linux-eabi -mfpu=neon-vfpv3 %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-NEON-VFPV3 %s
 // RUN: %clang -target arm-linux-eabi -mfpu=neon-vfpv3 -mfloat-abi=soft %s -### -o %t.o 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-SOFT-ABI-FP-6 %s
 // CHECK-NEON-VFPV3-NOT: "-target-feature" "+soft-float"

 // CHECK-CRYPTO-NEON-FP-ARMV8-NOT: "-target-feature" "+soft-float-abi"
 // CHECK-CRYPTO-NEON-FP-ARMV8: "-target-feature" "+fp-armv8"
 // CHECK-CRYPTO-NEON-FP-ARMV8: "-target-feature" "+crypto"
 
 // RUN: %clang -target armv8-linux-gnueabi -mfpu=none %s -### 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-NO-FP %s
 // CHECK-NO-FP-NOT: "-target-feature" "+soft-float"
 // CHECK-NO-FP: "-target-feature" "+soft-float-abi"
-// CHECK-NO-FP: "-target-feature" "-fp-only-sp"
-// CHECK-NO-FP: "-target-feature" "-d16"
 // CHECK-NO-FP: "-target-feature" "-vfp2"
 // CHECK-NO-FP: "-target-feature" "-vfp3"
 // CHECK-NO-FP: "-target-feature" "-vfp4"
 // CHECK-NO-FP: "-target-feature" "-fp-armv8"
+// CHECK-NO-FP-NOT: "-target-feature" "+fp64"
+// CHECK-NO-FP-NOT: "-target-feature" "+d32"
 // CHECK-NO-FP: "-target-feature" "-neon"
 // CHECK-NO-FP: "-target-feature" "-crypto"
 
 // RUN: %clang -target arm-linux-gnueabihf %s -### 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-HF %s
 // RUN: %clang -target arm-linux-musleabihf %s -### 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-HF %s
 // CHECK-HF-NOT: "-target-feature" "+soft-float"

 // CHECK-SOFT-ABI-FP: "-target-feature" "-fp-armv8"
 // CHECK-SOFT-ABI-FP: "-target-feature" "-neon"
 // CHECK-SOFT-ABI-FP: "-target-feature" "-crypto"
 
 // RUN: %clang -target arm-linux-androideabi21 %s -### -c 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-ARM5-ANDROID-FP-DEFAULT %s
 // CHECK-ARM5-ANDROID-FP-DEFAULT: "-target-feature" "+soft-float"
 // CHECK-ARM5-ANDROID-FP-DEFAULT: "-target-feature" "+soft-float-abi"
-// CHECK-ARM5-ANDROID-FP-DEFAULT-NOT: "-target-feature" "+d16"
+// CHECK-ARM5-ANDROID-FP-DEFAULT-NOT: "-target-feature" "+d32"
 // CHECK-ARM5-ANDROID-FP-DEFAULT-NOT: "-target-feature" "+vfp3"
 // CHECK-ARM5-ANDROID-FP-DEFAULT-NOT: "-target-feature" "+vfp4"
 // CHECK-ARM5-ANDROID-FP-DEFAULT-NOT: "-target-feature" "+fp-armv8"
 // CHECK-ARM5-ANDROID-FP-DEFAULT-NOT: "-target-feature" "+neon"
 // CHECK-ARM5-ANDROID-FP-DEFAULT-NOT: "-target-feature" "+crypto"
 
 // RUN: %clang -target armv7-linux-androideabi21 %s -### -c 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-ARM7-ANDROID-FP-DEFAULT %s
 // CHECK-ARM7-ANDROID-FP-DEFAULT-NOT: "-target-feature" "+soft-float"
 // CHECK-ARM7-ANDROID-FP-DEFAULT: "-target-feature" "+soft-float-abi"
 // CHECK-ARM7-ANDROID-FP-DEFAULT: "-target-feature" "+vfp3"
 // CHECK-ARM7-ANDROID-FP-DEFAULT-NOT: "-target-feature" "+vfp4"
 // CHECK-ARM7-ANDROID-FP-DEFAULT-NOT: "-target-feature" "+fp-armv8"
 // CHECK-ARM7-ANDROID-FP-DEFAULT: "-target-feature" "+neon"
 // CHECK-ARM7-ANDROID-FP-DEFAULT-NOT: "-target-feature" "+crypto"
 
 // RUN: %clang -target armv7-linux-androideabi21 %s -mfpu=vfp3-d16 -### -c 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-ARM7-ANDROID-FP-D16 %s
 // CHECK-ARM7-ANDROID-FP-D16-NOT: "-target-feature" "+soft-float"
 // CHECK-ARM7-ANDROID-FP-D16: "-target-feature" "+soft-float-abi"
-// CHECK-ARM7-ANDROID-FP-D16: "-target-feature" "+d16"
+// CHECK-ARM7-ANDROID-FP-D16-NOT: "-target-feature" "+d32"
 // CHECK-ARM7-ANDROID-FP-D16: "-target-feature" "+vfp3"
 // CHECK-ARM7-ANDROID-FP-D16-NOT: "-target-feature" "+vfp4"
 // CHECK-ARM7-ANDROID-FP-D16-NOT: "-target-feature" "+fp-armv8"
 // CHECK-ARM7-ANDROID-FP-D16-NOT: "-target-feature" "+neon"
 // CHECK-ARM7-ANDROID-FP-D16-NOT: "-target-feature" "+crypto"

llvm/include/llvm/MC/MCSubtargetInfo.h

public:
   /// Toggle a set of features and return the re-computed feature bits.
   /// This version will also change all implied bits.
   FeatureBitset ToggleFeature(StringRef FS);
 
   /// Apply a feature flag and return the re-computed feature bits, including
   /// all feature bits implied by the flag.
   FeatureBitset ApplyFeatureFlag(StringRef FS);
 
+  /// Set/clear additional feature bits, including all other bits they imply.
+  FeatureBitset SetFeatureBitsTransitively(const FeatureBitset& FB);
+  FeatureBitset ClearFeatureBitsTransitively(const FeatureBitset &FB);
+
   /// Check whether the subtarget features are enabled/disabled as per
   /// the provided string, ignoring all other features.
   bool checkFeatures(StringRef FS) const;
 
   /// Get the machine model of a CPU.
   const MCSchedModel &getSchedModelForCPU(StringRef CPU) const;
 
   /// Get the machine model for this subtarget's CPU.

llvm/lib/MC/MCSubtargetInfo.cpp

FeatureBitset MCSubtargetInfo::ToggleFeature(uint64_t FB) {
   return FeatureBits;
 }
 
 FeatureBitset MCSubtargetInfo::ToggleFeature(const FeatureBitset &FB) {
   FeatureBits ^= FB;
   return FeatureBits;
 }
 
+FeatureBitset MCSubtargetInfo::SetFeatureBitsTransitively(
+  const FeatureBitset &FB) {
+  SetImpliedBits(FeatureBits, FB, ProcFeatures);
+  return FeatureBits;
+}
+
+FeatureBitset MCSubtargetInfo::ClearFeatureBitsTransitively(
+  const FeatureBitset &FB) {
+  for (unsigned I = 0, E = FB.size(); I < E; I++) {
+    if (FB[I]) {
+      FeatureBits.reset(I);
+      ClearImpliedBits(FeatureBits, I, ProcFeatures);
+    }
+  }
+  return FeatureBits;
+}
+
 FeatureBitset MCSubtargetInfo::ToggleFeature(StringRef Feature) {
   // Find feature in table.
   const SubtargetFeatureKV *FeatureEntry =
       Find(SubtargetFeatures::StripFlag(Feature), ProcFeatures);
   // If there is a match
   if (FeatureEntry) {
     if (FeatureBits.test(FeatureEntry->Value)) {
       FeatureBits.reset(FeatureEntry->Value);

llvm/lib/Object/ELFObjectFile.cpp

if (Attributes.hasAttribute(ARMBuildAttrs::THUMB_ISA_use)) {
     }
   }
 
   if (Attributes.hasAttribute(ARMBuildAttrs::FP_arch)) {
     switch(Attributes.getAttributeValue(ARMBuildAttrs::FP_arch)) {
     default:
       break;
     case ARMBuildAttrs::Not_Allowed:
-      Features.AddFeature("vfp2", false);
-      Features.AddFeature("vfp3", false);
-      Features.AddFeature("vfp4", false);
+      Features.AddFeature("vfp2d16sp", false);
+      Features.AddFeature("vfp3d16sp", false);
+      Features.AddFeature("vfp4d16sp", false);
       break;
     case ARMBuildAttrs::AllowFPv2:
       Features.AddFeature("vfp2");
       break;
     case ARMBuildAttrs::AllowFPv3A:
     case ARMBuildAttrs::AllowFPv3B:
       Features.AddFeature("vfp3");
       break;

llvm/lib/Support/ARMTargetParser.cpp

return StringSwitch<StringRef>(Arch)
       .Default(Arch);
 }
 
 bool ARM::getFPUFeatures(unsigned FPUKind, std::vector<StringRef> &Features) {
 
   if (FPUKind >= FK_LAST || FPUKind == FK_INVALID)
     return false;
 
-  // fp-only-sp and d16 subtarget features are independent of each other, so we
-  // must enable/disable both.
-  switch (FPUNames[FPUKind].Restriction) {
-  case FPURestriction::SP_D16:
-    Features.push_back("+fp-only-sp");
-    Features.push_back("+d16");
-    break;
-  case FPURestriction::D16:
-    Features.push_back("-fp-only-sp");
-    Features.push_back("+d16");
-    break;
-  case FPURestriction::None:
-    Features.push_back("-fp-only-sp");
-    Features.push_back("-d16");
-    break;
-  }
-
   // FPU version subtarget features are inclusive of lower-numbered ones, so
   // enable the one corresponding to this version and disable all that are
   // higher. We also have to make sure to disable fp16 when vfp4 is disabled,
   // as +vfp4 implies +fp16 but -vfp4 does not imply -fp16.
   switch (FPUNames[FPUKind].FPUVer) {
   case FPUVersion::VFPV5:
     Features.push_back("+fp-armv8");
     break;
case FPUVersion::NONE:
     Features.push_back("-vfp2");
     Features.push_back("-vfp3");
     Features.push_back("-fp16");
     Features.push_back("-vfp4");
     Features.push_back("-fp-armv8");
     break;
   }
 
+  // fp64 and d32 subtarget features are independent of each other, so we
+  // must disable/enable both.
+  if (FPUKind == FK_NONE) {
+    Features.push_back("-fp64");
+    Features.push_back("-d32");
+  } else {
+    switch (FPUNames[FPUKind].Restriction) {
+    case FPURestriction::SP_D16:
+      Features.push_back("-fp64");
+      Features.push_back("-d32");
+      break;
+    case FPURestriction::D16:
+      Features.push_back("+fp64");
+      Features.push_back("-d32");
+      break;
+    case FPURestriction::None:
+      Features.push_back("+fp64");
+      Features.push_back("+d32");
+      break;
+    }
+  }
+
   // crypto includes neon, so we handle this similarly to FPU version.
   switch (FPUNames[FPUKind].NeonSupport) {
   case NeonSupportLevel::Crypto:
     Features.push_back("+neon");
     Features.push_back("+crypto");
     break;
   case NeonSupportLevel::Neon:
     Features.push_back("+neon");

llvm/lib/Target/ARM/ARM.td

def ModeSoftFloat         : SubtargetFeature<"soft-float","UseSoftFloat",
                                              "point features.">;
 
 
 //===----------------------------------------------------------------------===//
 // ARM Subtarget features.
 //
 
 // Floating Point, HW Division and Neon Support
-def FeatureVFP2           : SubtargetFeature<"vfp2", "HasVFPv2", "true",
-                                             "Enable VFP2 instructions">;
+def FeatureFP64           : SubtargetFeature<"fp64", "HasFP64", "true",
+                                             "Floating point unit supports "
+                                             "double precision">;
+
+def FeatureD32            : SubtargetFeature<"d32", "HasD32", "true",
+                                             "Extend FP to 32 double registers">;
+
+multiclass VFPver<string name, string query, string description,
+                  list<SubtargetFeature> prev = [],
+                  list<SubtargetFeature> otherimplies = []> {
+  def _D16_SP: SubtargetFeature<
+    name#"d16sp", query#"D16SP", "true",
+    description#" with only 16 d-registers and no double precision",
+    !foreach(v, prev, !cast<SubtargetFeature>(v # "_D16_SP")) # otherimplies>;
+  def _SP: SubtargetFeature<
+    name#"sp", query#"SP", "true",
+    description#" with no double precision",
+    !foreach(v, prev, !cast<SubtargetFeature>(v # "_SP")) #
+      otherimplies # [FeatureD32, !cast<SubtargetFeature>(NAME # "_D16_SP")]>;
+  def _D16: SubtargetFeature<
+    name#"d16", query#"D16", "true",
+    description#" with only 16 d-registers",
+    !foreach(v, prev, !cast<SubtargetFeature>(v # "_D16")) #
+      otherimplies # [FeatureFP64, !cast<SubtargetFeature>(NAME # "_D16_SP")]>;
+  def "": SubtargetFeature<
+    name, query, "true", description,
+    prev # otherimplies # [
+        !cast<SubtargetFeature>(NAME # "_D16"),
+        !cast<SubtargetFeature>(NAME # "_SP")]>;
+}
 
-def FeatureVFP3           : SubtargetFeature<"vfp3", "HasVFPv3", "true",
-                                             "Enable VFP3 instructions",
-                                             [FeatureVFP2]>;
+defm FeatureVFP2: VFPver<"vfp2", "HasVFPv2", "Enable VFP2 instructions">;
+defm FeatureVFP3: VFPver<"vfp3", "HasVFPv3", "Enable VFP3 instructions",
 
 def FeatureNEON           : SubtargetFeature<"neon", "HasNEON", "true",
                                              "Enable NEON instructions",
                                              [FeatureVFP3]>;
 
 def FeatureFP16           : SubtargetFeature<"fp16", "HasFP16", "true",
                                              "Enable half-precision "
                                              "floating point">;
 
-def FeatureVFP4           : SubtargetFeature<"vfp4", "HasVFPv4", "true",
-                                             "Enable VFP4 instructions",
-                                             [FeatureVFP3, FeatureFP16]>;
+defm FeatureVFP4: VFPver<"vfp4", "HasVFPv4", "Enable VFP4 instructions",
+                         [FeatureVFP3], [FeatureFP16]>;
 
-def FeatureFPARMv8        : SubtargetFeature<"fp-armv8", "HasFPARMv8",
-                                             "true", "Enable ARMv8 FP",
-                                             [FeatureVFP4]>;
+defm FeatureFPARMv8: VFPver<"fp-armv8", "HasFPARMv8", "Enable ARMv8 FP",
 
 def FeatureFullFP16       : SubtargetFeature<"fullfp16", "HasFullFP16", "true",
                                              "Enable full half-precision "
                                              "floating point",
-                                             [FeatureFPARMv8]>;
+                                             [FeatureFPARMv8_D16_SP]>;
 
 def FeatureFP16FML        : SubtargetFeature<"fp16fml", "HasFP16FML", "true",
                                              "Enable full half-precision "
                                              "floating point fml instructions",
                                              [FeatureFullFP16]>;
 
-def FeatureVFPOnlySP      : SubtargetFeature<"fp-only-sp", "FPOnlySP", "true",
-                                             "Floating point unit supports "
-                                             "single precision only">;
-
-def FeatureD16            : SubtargetFeature<"d16", "HasD16", "true",
-                                             "Restrict FP to 16 double registers">;
-
 def FeatureHWDivThumb     : SubtargetFeature<"hwdiv",
                                              "HasHardwareDivideInThumb", "true",
                                              "Enable divide instructions in Thumb">;
 
 def FeatureHWDivARM       : SubtargetFeature<"hwdiv-arm",
                                              "HasHardwareDivideInARM", "true",
                                              "Enable divide instructions in ARM mode">;
 

 def : ProcessorModel<"cortex-r4",   CortexA8Model,      [ARMv7r, ProcR4,
                                                          FeatureHasRetAddrStack,
                                                          FeatureAvoidPartialCPSR]>;
 
 def : ProcessorModel<"cortex-r4f",  CortexA8Model,      [ARMv7r, ProcR4,
                                                          FeatureHasRetAddrStack,
                                                          FeatureSlowFPBrcc,
                                                          FeatureHasSlowFPVMLx,
-                                                         FeatureVFP3,
-                                                         FeatureD16,
+                                                         FeatureVFP3_D16,
                                                          FeatureAvoidPartialCPSR]>;
 
 def : ProcessorModel<"cortex-r5",   CortexA8Model,      [ARMv7r, ProcR5,
                                                          FeatureHasRetAddrStack,
-                                                         FeatureVFP3,
-                                                         FeatureD16,
+                                                         FeatureVFP3_D16,
                                                          FeatureSlowFPBrcc,
                                                          FeatureHWDivARM,
                                                          FeatureHasSlowFPVMLx,
                                                          FeatureAvoidPartialCPSR]>;
 
 def : ProcessorModel<"cortex-r7",   CortexA8Model,      [ARMv7r, ProcR7,
                                                          FeatureHasRetAddrStack,
-                                                         FeatureVFP3,
-                                                         FeatureD16,
+                                                         FeatureVFP3_D16,
                                                          FeatureFP16,
                                                          FeatureMP,
                                                          FeatureSlowFPBrcc,
                                                          FeatureHWDivARM,
                                                          FeatureHasSlowFPVMLx,
                                                          FeatureAvoidPartialCPSR]>;
 
 def : ProcessorModel<"cortex-r8",   CortexA8Model,      [ARMv7r,
                                                          FeatureHasRetAddrStack,
-                                                         FeatureVFP3,
-                                                         FeatureD16,
+                                                         FeatureVFP3_D16,
                                                          FeatureFP16,
                                                          FeatureMP,
                                                          FeatureSlowFPBrcc,
                                                          FeatureHWDivARM,
                                                          FeatureHasSlowFPVMLx,
                                                          FeatureAvoidPartialCPSR]>;
 
 def : ProcessorModel<"cortex-m3", CortexM3Model,        [ARMv7m,
                                                          ProcM3,
                                                          FeaturePrefLoopAlign32,
                                                          FeatureHasNoBranchPredictor]>;
 
 def : ProcessorModel<"sc300",     CortexM3Model,        [ARMv7m,
                                                          ProcM3,
                                                          FeatureHasNoBranchPredictor]>;
 
 def : ProcessorModel<"cortex-m4", CortexM3Model,        [ARMv7em,
-                                                         FeatureVFP4,
-                                                         FeatureVFPOnlySP,
-                                                         FeatureD16,
+                                                         FeatureVFP4_D16_SP,
                                                          FeaturePrefLoopAlign32,
                                                          FeatureHasSlowFPVMLx,
                                                          FeatureHasNoBranchPredictor]>;
 
 def : ProcNoItin<"cortex-m7",                           [ARMv7em,
-                                                         FeatureFPARMv8,
-                                                         FeatureD16]>;
+                                                         FeatureFPARMv8_D16]>;
 
 def : ProcNoItin<"cortex-m23",                          [ARMv8mBaseline,
                                                          FeatureNoMovt]>;
 
 def : ProcessorModel<"cortex-m33", CortexM3Model,       [ARMv8mMainline,
                                                          FeatureDSP,
-                                                         FeatureFPARMv8,
-                                                         FeatureD16,
-                                                         FeatureVFPOnlySP,
+                                                         FeatureFPARMv8_D16_SP,
                                                          FeaturePrefLoopAlign32,
                                                          FeatureHasSlowFPVMLx,
                                                          FeatureHasNoBranchPredictor]>;
 
 def : ProcessorModel<"cortex-m35p", CortexM3Model,      [ARMv8mMainline,
                                                          FeatureDSP,
-                                                         FeatureFPARMv8,
-                                                         FeatureD16,
-                                                         FeatureVFPOnlySP,
+                                                         FeatureFPARMv8_D16_SP,
                                                          FeaturePrefLoopAlign32,
                                                          FeatureHasSlowFPVMLx,
                                                          FeatureHasNoBranchPredictor]>;
 
 
 def : ProcNoItin<"cortex-a32",                           [ARMv8a,
                                                          FeatureHWDivThumb,
                                                          FeatureHWDivARM,

llvm/lib/Target/ARM/ARMAsmPrinter.cpp

else if (checkFunctionsAttributeConsistency(*MMI->getModule(),
                                               "positive-zero") ||
            TM.Options.FPDenormalMode == FPDenormal::PositiveZero)
     ATS.emitAttribute(ARMBuildAttrs::ABI_FP_denormal,
                       ARMBuildAttrs::PositiveZero);
   else if (!TM.Options.UnsafeFPMath)
     ATS.emitAttribute(ARMBuildAttrs::ABI_FP_denormal,
                       ARMBuildAttrs::IEEEDenormals);
   else {
-    if (!STI.hasVFP2()) {
+    if (!STI.hasVFP2Base()) {
       // When the target doesn't have an FPU (by design or
       // intention), the assumptions made on the software support
       // mirror that of the equivalent hardware support *if it
       // existed*. For v7 and better we indicate that denormals are
       // flushed preserving sign, and for V6 we indicate that
       // denormals are flushed to positive zero.
       if (STI.hasV7Ops())
         ATS.emitAttribute(ARMBuildAttrs::ABI_FP_denormal,
                           ARMBuildAttrs::PreserveFPSign);
-    } else if (STI.hasVFP3()) {
+    } else if (STI.hasVFP3Base()) {
       // In VFPv4, VFPv4U, VFPv3, or VFPv3U, it is preserved. That is,
       // the sign bit of the zero matches the sign bit of the input or
       // result that is being flushed to zero.
       ATS.emitAttribute(ARMBuildAttrs::ABI_FP_denormal,
                         ARMBuildAttrs::PreserveFPSign);
     }
     // For VFPv2 implementations it is implementation defined as
     // to whether denormals are flushed to positive zero or to

llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp

if (usePreRAHazardRecognizer()) {
     return new ScoreboardHazardRecognizer(II, DAG, "pre-RA-sched");
   }
   return TargetInstrInfo::CreateTargetHazardRecognizer(STI, DAG);
 }
 
 ScheduleHazardRecognizer *ARMBaseInstrInfo::
 CreateTargetPostRAHazardRecognizer(const InstrItineraryData *II,
                                    const ScheduleDAG *DAG) const {
-  if (Subtarget.isThumb2() || Subtarget.hasVFP2())
+  if (Subtarget.isThumb2() || Subtarget.hasVFP2Base())
     return (ScheduleHazardRecognizer *)new ARMHazardRecognizer(II, DAG);
   return TargetInstrInfo::CreateTargetPostRAHazardRecognizer(II, DAG);
 }
 
 MachineInstr *ARMBaseInstrInfo::convertToThreeAddress(
     MachineFunction::iterator &MFI, MachineInstr &MI, LiveVariables *LV) const {
   // FIXME: Thumb2 support.
 
void ARMBaseInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
 
   unsigned Opc = 0;
   if (SPRDest && SPRSrc)
     Opc = ARM::VMOVS;
   else if (GPRDest && SPRSrc)
     Opc = ARM::VMOVRS;
   else if (SPRDest && GPRSrc)
     Opc = ARM::VMOVSR;
-  else if (ARM::DPRRegClass.contains(DestReg, SrcReg) && !Subtarget.isFPOnlySP())
+  else if (ARM::DPRRegClass.contains(DestReg, SrcReg) && Subtarget.hasFP64())
     Opc = ARM::VMOVD;
   else if (ARM::QPRRegClass.contains(DestReg, SrcReg))
     Opc = ARM::VORRq;
 
   if (Opc) {
     MachineInstrBuilder MIB = BuildMI(MBB, I, DL, get(Opc), DestReg);
     MIB.addReg(SrcReg, getKillRegState(KillSrc));
     if (Opc == ARM::VORRq)
// Fall back to VMOVD.
     BeginIdx = ARM::dsub_0;
     SubRegs = 3;
     Spacing = 2;
   } else if (ARM::DQuadSpcRegClass.contains(DestReg, SrcReg)) {
     Opc = ARM::VMOVD;
     BeginIdx = ARM::dsub_0;
     SubRegs = 4;
     Spacing = 2;
-  } else if (ARM::DPRRegClass.contains(DestReg, SrcReg) && Subtarget.isFPOnlySP()) {
+  } else if (ARM::DPRRegClass.contains(DestReg, SrcReg) &&
+             !Subtarget.hasFP64()) {
     Opc = ARM::VMOVS;
     BeginIdx = ARM::ssub_0;
     SubRegs = 2;
   } else if (SrcReg == ARM::CPSR) {
     copyFromCPSR(MBB, I, DestReg, KillSrc, Subtarget);
     return;
   } else if (DestReg == ARM::CPSR) {
     copyToCPSR(MBB, I, SrcReg, KillSrc, Subtarget);
if (MI.getOpcode() == ARM::MEMCPY) {
     expandMEMCPY(MI);
     return true;
   }
 
   // This hook gets to expand COPY instructions before they become
   // copyPhysReg() calls.  Look for VMOVS instructions that can legally be
   // widened to VMOVD.  We prefer the VMOVD when possible because it may be
   // changed into a VORR that can go down the NEON pipeline.
-  if (!MI.isCopy() || Subtarget.dontWidenVMOVS() || Subtarget.isFPOnlySP())
+  if (!MI.isCopy() || Subtarget.dontWidenVMOVS() || !Subtarget.hasFP64())
     return false;
 
   // Look for a copy between even S-registers.  That is where we keep floats
   // when using NEON v2f32 instructions for f32 arithmetic.
   unsigned DstRegS = MI.getOperand(0).getReg();
   unsigned SrcRegS = MI.getOperand(1).getReg();
   if (!ARM::SPRRegClass.contains(DstRegS, SrcRegS))
     return false;

llvm/lib/Target/ARM/ARMBaseRegisterInfo.cpp

ARMBaseRegisterInfo::getTLSCallPreservedMask(const MachineFunction &MF) const {
   assert(MF.getSubtarget<ARMSubtarget>().isTargetDarwin() &&
          "only know about special TLS call on Darwin");
   return CSR_iOS_TLSCall_RegMask;
 }
 
 const uint32_t *
 ARMBaseRegisterInfo::getSjLjDispatchPreservedMask(const MachineFunction &MF) const {
   const ARMSubtarget &STI = MF.getSubtarget<ARMSubtarget>();
-  if (!STI.useSoftFloat() && STI.hasVFP2() && !STI.isThumb1Only())
+  if (!STI.useSoftFloat() && STI.hasVFP2Base() && !STI.isThumb1Only())
     return CSR_NoRegs_RegMask;
   else
     return CSR_FPRegs_RegMask;
 }
 
 const uint32_t *
 ARMBaseRegisterInfo::getThisReturnPreservedMask(const MachineFunction &MF,
                                                 CallingConv::ID CC) const {
getReservedRegs(const MachineFunction &MF) const {
   if (TFI->hasFP(MF))
     markSuperRegs(Reserved, getFramePointerReg(STI));
   if (hasBasePointer(MF))
     markSuperRegs(Reserved, BasePtr);
   // Some targets reserve R9.
   if (STI.isR9Reserved())
     markSuperRegs(Reserved, ARM::R9);
   // Reserve D16-D31 if the subtarget doesn't support them.
-  if (!STI.hasVFP3() || STI.hasD16()) {
+  if (!STI.hasD32()) {
     static_assert(ARM::D31 == ARM::D16 + 15, "Register list not consecutive!");
     for (unsigned R = 0; R < 16; ++R)
       markSuperRegs(Reserved, ARM::D16 + R);
   }
   const TargetRegisterClass &RC = ARM::GPRPairRegClass;
   for (unsigned Reg : RC)
     for (MCSubRegIterator SI(Reg, this); SI.isValid(); ++SI)
       if (Reserved.test(*SI))

llvm/lib/Target/ARM/ARMFastISel.cpp

if (TLI.isFPImmLegal(Val, VT)) {
     }
     unsigned DestReg = createResultReg(TLI.getRegClassFor(VT));
     AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
                             TII.get(Opc), DestReg).addImm(Imm));
     return DestReg;
   }
 
   // Require VFP2 for loading fp constants.
-  if (!Subtarget->hasVFP2()) return false;
+  if (!Subtarget->hasVFP2Base()) return false;
 
   // MachineConstantPool wants an explicit alignment.
   unsigned Align = DL.getPrefTypeAlignment(CFP->getType());
   if (Align == 0) {
     // TODO: Figure out if this is correct.
     Align = DL.getTypeAllocSize(CFP->getType());
   }
   unsigned Idx = MCP.getConstantPoolIndex(cast<Constant>(CFP), Align);
case MVT::i32:
         else
           Opc = ARM::t2LDRi12;
       } else {
         Opc = ARM::LDRi12;
       }
       RC = isThumb2 ? &ARM::rGPRRegClass : &ARM::GPRnopcRegClass;
       break;
     case MVT::f32:
-      if (!Subtarget->hasVFP2()) return false;
+      if (!Subtarget->hasVFP2Base()) return false;
       // Unaligned loads need special handling. Floats require word-alignment.
       if (Alignment && Alignment < 4) {
         needVMOV = true;
         VT = MVT::i32;
         Opc = isThumb2 ? ARM::t2LDRi12 : ARM::LDRi12;
         RC = isThumb2 ? &ARM::rGPRRegClass : &ARM::GPRnopcRegClass;
       } else {
         Opc = ARM::VLDRS;
         RC = TLI.getRegClassFor(VT);
       }
       break;
     case MVT::f64:
-      if (!Subtarget->hasVFP2()) return false;
+      // Can load and store double precision even without FeatureFP64
+      if (!Subtarget->hasVFP2Base()) return false;
       // FIXME: Unaligned loads need special handling.  Doublewords require
       // word-alignment.
       if (Alignment && Alignment < 4)
         return false;
 
       Opc = ARM::VLDRD;
       RC = TLI.getRegClassFor(VT);
       break;
case MVT::i32:
           StrOpc = ARM::t2STRi8;
         else
           StrOpc = ARM::t2STRi12;
       } else {
         StrOpc = ARM::STRi12;
       }
       break;
     case MVT::f32:
-      if (!Subtarget->hasVFP2()) return false;
+      if (!Subtarget->hasVFP2Base()) return false;
       // Unaligned stores need special handling. Floats require word-alignment.
       if (Alignment && Alignment < 4) {
         unsigned MoveReg = createResultReg(TLI.getRegClassFor(MVT::i32));
         AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
                                 TII.get(ARM::VMOVRS), MoveReg)
                         .addReg(SrcReg));
         SrcReg = MoveReg;
         VT = MVT::i32;
         StrOpc = isThumb2 ? ARM::t2STRi12 : ARM::STRi12;
       } else {
         StrOpc = ARM::VSTRS;
       }
       break;
     case MVT::f64:
-      if (!Subtarget->hasVFP2()) return false;
+      // Can load and store double precision even without FeatureFP64
+      if (!Subtarget->hasVFP2Base()) return false;
       // FIXME: Unaligned stores need special handling.  Doublewords require
       // word-alignment.
       if (Alignment && Alignment < 4)
           return false;
 
       StrOpc = ARM::VSTRD;
       break;
   }

 
 bool ARMFastISel::ARMEmitCmp(const Value *Src1Value, const Value *Src2Value,
                              bool isZExt, bool isEquality) {
   Type *Ty = Src1Value->getType();
   EVT SrcEVT = TLI.getValueType(DL, Ty, true);
   if (!SrcEVT.isSimple()) return false;
   MVT SrcVT = SrcEVT.getSimpleVT();
 
-  if (Ty->isFloatTy() && !Subtarget->hasVFP2())
+  if (Ty->isFloatTy() && !Subtarget->hasVFP2Base())
     return false;
 
-  if (Ty->isDoubleTy() && (!Subtarget->hasVFP2() || Subtarget->isFPOnlySP()))
+  if (Ty->isDoubleTy() && (!Subtarget->hasVFP2Base() || !Subtarget->hasFP64()))
     return false;
 
   // Check to see if the 2nd operand is a constant that we can encode directly
   // in the compare.
   int Imm = 0;
   bool UseImm = false;
   bool isNegativeImm = false;
   // FIXME: At -O0 we don't have anything that canonicalizes operand order.
   // Thus, Src1Value may be a ConstantInt, but we're missing it.
   if (const ConstantInt *ConstInt = dyn_cast<ConstantInt>(Src2Value)) {
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(MovCCOpc), DestReg)
           .addImm(ARMPred).addReg(ARM::CPSR);
 
   updateValueMap(I, DestReg);
   return true;
 }
 
 bool ARMFastISel::SelectFPExt(const Instruction *I) {
   // Make sure we have VFP and that we're extending float to double.
-  if (!Subtarget->hasVFP2() || Subtarget->isFPOnlySP()) return false;
+  if (!Subtarget->hasVFP2Base() || !Subtarget->hasFP64()) return false;
 
   Value *V = I->getOperand(0);
   if (!I->getType()->isDoubleTy() ||
       !V->getType()->isFloatTy()) return false;
 
   unsigned Op = getRegForValue(V);
   if (Op == 0) return false;
 
   unsigned Result = createResultReg(&ARM::DPRRegClass);
   AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
                           TII.get(ARM::VCVTDS), Result)
                   .addReg(Op));
   updateValueMap(I, Result);
   return true;
 }
 
 bool ARMFastISel::SelectFPTrunc(const Instruction *I) {
   // Make sure we have VFP and that we're truncating double to float.
-  if (!Subtarget->hasVFP2() || Subtarget->isFPOnlySP()) return false;
+  if (!Subtarget->hasVFP2Base() || !Subtarget->hasFP64()) return false;
 
   Value *V = I->getOperand(0);
   if (!(I->getType()->isFloatTy() &&
         V->getType()->isDoubleTy())) return false;
 
   unsigned Op = getRegForValue(V);
   if (Op == 0) return false;
 
   unsigned Result = createResultReg(&ARM::SPRRegClass);
   AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
                           TII.get(ARM::VCVTSD), Result)
                   .addReg(Op));
   updateValueMap(I, Result);
   return true;
 }
 
 bool ARMFastISel::SelectIToFP(const Instruction *I, bool isSigned) {
   // Make sure we have VFP.
-  if (!Subtarget->hasVFP2()) return false;
+  if (!Subtarget->hasVFP2Base()) return false;
 
   MVT DstVT;
   Type *Ty = I->getType();
   if (!isTypeLegal(Ty, DstVT))
     return false;
 
   Value *Src = I->getOperand(0);
   EVT SrcEVT = TLI.getValueType(DL, Src->getType(), true);
bool ARMFastISel::SelectIToFP(const Instruction *I, bool isSigned) {
 
   // The conversion routine works on fp-reg to fp-reg and the operand above
   // was an integer, move it to the fp registers if possible.
   unsigned FP = ARMMoveToFPReg(MVT::f32, SrcReg);
   if (FP == 0) return false;
 
   unsigned Opc;
   if (Ty->isFloatTy()) Opc = isSigned ? ARM::VSITOS : ARM::VUITOS;
-  else if (Ty->isDoubleTy() && !Subtarget->isFPOnlySP())
+  else if (Ty->isDoubleTy() && Subtarget->hasFP64())
     Opc = isSigned ? ARM::VSITOD : ARM::VUITOD;
   else return false;
 
   unsigned ResultReg = createResultReg(TLI.getRegClassFor(DstVT));
   AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
                           TII.get(Opc), ResultReg).addReg(FP));
   updateValueMap(I, ResultReg);
   return true;
 }
 
 bool ARMFastISel::SelectFPToI(const Instruction *I, bool isSigned) {
   // Make sure we have VFP.
-  if (!Subtarget->hasVFP2()) return false;
+  if (!Subtarget->hasVFP2Base()) return false;
 
   MVT DstVT;
   Type *RetTy = I->getType();
   if (!isTypeLegal(RetTy, DstVT))
     return false;
 
   unsigned Op = getRegForValue(I->getOperand(0));
   if (Op == 0) return false;
 
   unsigned Opc;
   Type *OpTy = I->getOperand(0)->getType();
   if (OpTy->isFloatTy()) Opc = isSigned ? ARM::VTOSIZS : ARM::VTOUIZS;
-  else if (OpTy->isDoubleTy() && !Subtarget->isFPOnlySP())
+  else if (OpTy->isDoubleTy() && Subtarget->hasFP64())
     Opc = isSigned ? ARM::VTOSIZD : ARM::VTOUIZD;
   else return false;
 
   // f64->s32/u32 or f32->s32/u32 both need an intermediate f32 reg.
   unsigned ResultReg = createResultReg(TLI.getRegClassFor(MVT::f32));
   AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
                           TII.get(Opc), ResultReg).addReg(Op));
 
bool ARMFastISel::SelectBinaryFPOp(const Instruction *I, unsigned ISDOpcode) {
   if (VT.isVector())
     return false;
 
   // We can get here in the case when we want to use NEON for our fp
   // operations, but can't figure out how to. Just use the vfp instructions
   // if we have them.
   // FIXME: It'd be nice to use NEON instructions.
   Type *Ty = I->getType();
-  if (Ty->isFloatTy() && !Subtarget->hasVFP2())
+  if (Ty->isFloatTy() && !Subtarget->hasVFP2Base())
     return false;
-  if (Ty->isDoubleTy() && (!Subtarget->hasVFP2() || Subtarget->isFPOnlySP()))
+  if (Ty->isDoubleTy() && (!Subtarget->hasVFP2Base() || !Subtarget->hasFP64()))
     return false;
 
   unsigned Opc;
   bool is64bit = VT == MVT::f64 || VT == MVT::i64;
   switch (ISDOpcode) {
     default: return false;
     case ISD::FADD:
       Opc = is64bit ? ARM::VADDD : ARM::VADDS;

 // TODO: We may not support all of this.
 CCAssignFn *ARMFastISel::CCAssignFnForCall(CallingConv::ID CC,
                                            bool Return,
                                            bool isVarArg) {
   switch (CC) {
   default:
     report_fatal_error("Unsupported calling convention");
   case CallingConv::Fast:
-    if (Subtarget->hasVFP2() && !isVarArg) {
+    if (Subtarget->hasVFP2Base() && !isVarArg) {
       if (!Subtarget->isAAPCS_ABI())
         return (Return ? RetFastCC_ARM_APCS : FastCC_ARM_APCS);
       // For AAPCS ABI targets, just use VFP variant of the calling convention.
       return (Return ? RetCC_ARM_AAPCS_VFP : CC_ARM_AAPCS_VFP);
     }
     LLVM_FALLTHROUGH;
   case CallingConv::C:
   case CallingConv::CXX_FAST_TLS:
     // Use target triple & subtarget features to do actual dispatch.
     if (Subtarget->isAAPCS_ABI()) {
-      if (Subtarget->hasVFP2() &&
+      if (Subtarget->hasVFP2Base() &&
           TM.Options.FloatABIType == FloatABI::Hard && !isVarArg)
         return (Return ? RetCC_ARM_AAPCS_VFP: CC_ARM_AAPCS_VFP);
       else
         return (Return ? RetCC_ARM_AAPCS: CC_ARM_AAPCS);
     } else {
       return (Return ? RetCC_ARM_APCS: CC_ARM_APCS);
     }
   case CallingConv::ARM_AAPCS_VFP:
if (VA.isRegLoc() && !VA.needsCustom()) {
       default:
         return false;
       case MVT::i1:
       case MVT::i8:
       case MVT::i16:
       case MVT::i32:
         break;
       case MVT::f32:
-        if (!Subtarget->hasVFP2())
+        if (!Subtarget->hasVFP2Base())
           return false;
         break;
       case MVT::f64:
-        if (!Subtarget->hasVFP2())
+        if (!Subtarget->hasVFP2Base())
           return false;
         break;
       }
     }
   }
 
   // At the point, we are able to handle the call's arguments in fast isel.
 

llvm/lib/Target/ARM/ARMISelDAGToDAG.cpp

unsigned Opcode = StringSwitch<unsigned>(SpecialReg)
                     .Case("mvfr1", ARM::VMRS_MVFR1)
                     .Case("mvfr2", ARM::VMRS_MVFR2)
                     .Case("fpinst", ARM::VMRS_FPINST)
                     .Case("fpinst2", ARM::VMRS_FPINST2)
                     .Default(0);
 
   // If an opcode was found then we can lower the read to a VFP instruction.
   if (Opcode) {
-    if (!Subtarget->hasVFP2())
+    if (!Subtarget->hasVFP2Base())
       return false;
-    if (Opcode == ARM::VMRS_MVFR2 && !Subtarget->hasFPARMv8())
+    if (Opcode == ARM::VMRS_MVFR2 && !Subtarget->hasFPARMv8Base())
       return false;
 
     Ops = { getAL(CurDAG, DL), CurDAG->getRegister(0, MVT::i32),
             N->getOperand(0) };
     ReplaceNode(N,
                 CurDAG->getMachineNode(Opcode, DL, MVT::i32, MVT::Other, Ops));
     return true;
   }
unsigned Opcode = StringSwitch<unsigned>(SpecialReg)
                     .Case("fpscr", ARM::VMSR)
                     .Case("fpexc", ARM::VMSR_FPEXC)
                     .Case("fpsid", ARM::VMSR_FPSID)
                     .Case("fpinst", ARM::VMSR_FPINST)
                     .Case("fpinst2", ARM::VMSR_FPINST2)
                     .Default(0);
 
   if (Opcode) {
-    if (!Subtarget->hasVFP2())
+    if (!Subtarget->hasVFP2Base())
       return false;
     Ops = { N->getOperand(2), getAL(CurDAG, DL),
             CurDAG->getRegister(0, MVT::i32), N->getOperand(0) };
     ReplaceNode(N, CurDAG->getMachineNode(Opcode, DL, MVT::Other, Ops));
     return true;
   }
 
   std::pair<StringRef, StringRef> Fields;

llvm/lib/Target/ARM/ARMISelLowering.cpp

if (!Subtarget->isTargetDarwin() && !Subtarget->isTargetIOS() &&
     for (int LCID = 0; LCID < RTLIB::UNKNOWN_LIBCALL; ++LCID)
       setLibcallCallingConv(static_cast<RTLIB::Libcall>(LCID),
                             IsHFTarget ? CallingConv::ARM_AAPCS_VFP
                                        : CallingConv::ARM_AAPCS);
   }
 
   if (Subtarget->isTargetMachO()) {
     // Uses VFP for Thumb libfuncs if available.
-    if (Subtarget->isThumb() && Subtarget->hasVFP2() &&
+    if (Subtarget->isThumb() && Subtarget->hasVFP2Base() &&
         Subtarget->hasARMOps() && !Subtarget->useSoftFloat()) {
       static const struct {
         const RTLIB::Libcall Op;
         const char * const Name;
         const ISD::CondCode Cond;
       } LibraryCalls[] = {
         // Single-precision floating-point arithmetic.
         { RTLIB::ADD_F32, "__addsf3vfp", ISD::SETCC_INVALID },
if (Subtarget->isTargetAEABI()) {
     }
   }
 
   if (Subtarget->isThumb1Only())
     addRegisterClass(MVT::i32, &ARM::tGPRRegClass);
   else
     addRegisterClass(MVT::i32, &ARM::GPRRegClass);
 
-  if (!Subtarget->useSoftFloat() && Subtarget->hasVFP2() &&
+  if (!Subtarget->useSoftFloat() && Subtarget->hasVFP2Base() &&
       !Subtarget->isThumb1Only()) {
     addRegisterClass(MVT::f32, &ARM::SPRRegClass);
     addRegisterClass(MVT::f64, &ARM::DPRRegClass);
   }
 
   if (Subtarget->hasFullFP16()) {
     addRegisterClass(MVT::f16, &ARM::HPRRegClass);
     setOperationAction(ISD::BITCAST, MVT::i16, Custom);
if (Subtarget->hasNEON()) {
     setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::v1i64, Custom);
 
     setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::v16i8, Custom);
     setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::v8i16, Custom);
     setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::v4i32, Custom);
     setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::v2i64, Custom);
 
     // NEON only has FMA instructions as of VFP4.
-    if (!Subtarget->hasVFP4()) {
+    if (!Subtarget->hasVFP4Base()) {
       setOperationAction(ISD::FMA, MVT::v2f32, Expand);
       setOperationAction(ISD::FMA, MVT::v4f32, Expand);
     }
 
     setTargetDAGCombine(ISD::INTRINSIC_VOID);
     setTargetDAGCombine(ISD::INTRINSIC_W_CHAIN);
     setTargetDAGCombine(ISD::INTRINSIC_WO_CHAIN);
     setTargetDAGCombine(ISD::SHL);
for (MVT Ty : {MVT::v8i8, MVT::v4i8, MVT::v2i8, MVT::v4i16, MVT::v2i16,
       for (MVT VT : MVT::integer_vector_valuetypes()) {
         setLoadExtAction(ISD::EXTLOAD, VT, Ty, Legal);
         setLoadExtAction(ISD::ZEXTLOAD, VT, Ty, Legal);
         setLoadExtAction(ISD::SEXTLOAD, VT, Ty, Legal);
       }
     }
   }
 
-  if (Subtarget->isFPOnlySP()) {
+  if (!Subtarget->hasFP64()) {
     // When targeting a floating-point unit with only single-precision
     // operations, f64 is legal for the few double-precision instructions which
     // are present However, no double-precision operations other than moves,
     // loads and stores are provided by the hardware.
     setOperationAction(ISD::FADD,       MVT::f64, Expand);
     setOperationAction(ISD::FSUB,       MVT::f64, Expand);
     setOperationAction(ISD::FMUL,       MVT::f64, Expand);
     setOperationAction(ISD::FMA,        MVT::f64, Expand);
ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM,
 
   // Requires SXTB/SXTH, available on v6 and up in both ARM and Thumb modes.
   if (!Subtarget->hasV6Ops()) {
     setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Expand);
     setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i8,  Expand);
   }
   setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand);
 
-  if (!Subtarget->useSoftFloat() && Subtarget->hasVFP2() &&
+  if (!Subtarget->useSoftFloat() && Subtarget->hasVFP2Base() &&
       !Subtarget->isThumb1Only()) {
     // Turn f64->i64 into VMOVRRD, i64 -> f64 to VMOVDRR
     // iff target supports vfp2.
     setOperationAction(ISD::BITCAST, MVT::i64, Custom);
     setOperationAction(ISD::FLT_ROUNDS_, MVT::i32, Custom);
   }
 
   // We want to custom lower some of our intrinsics.
ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM,
   setOperationAction(ISD::FSIN,      MVT::f64, Expand);
   setOperationAction(ISD::FSIN,      MVT::f32, Expand);
   setOperationAction(ISD::FCOS,      MVT::f32, Expand);
   setOperationAction(ISD::FCOS,      MVT::f64, Expand);
   setOperationAction(ISD::FSINCOS,   MVT::f64, Expand);
   setOperationAction(ISD::FSINCOS,   MVT::f32, Expand);
   setOperationAction(ISD::FREM,      MVT::f64, Expand);
   setOperationAction(ISD::FREM,      MVT::f32, Expand);
-  if (!Subtarget->useSoftFloat() && Subtarget->hasVFP2() &&
+  if (!Subtarget->useSoftFloat() && Subtarget->hasVFP2Base() &&
       !Subtarget->isThumb1Only()) {
     setOperationAction(ISD::FCOPYSIGN, MVT::f64, Custom);
     setOperationAction(ISD::FCOPYSIGN, MVT::f32, Custom);
   }
   setOperationAction(ISD::FPOW,      MVT::f64, Expand);
   setOperationAction(ISD::FPOW,      MVT::f32, Expand);
 
-  if (!Subtarget->hasVFP4()) {
+  if (!Subtarget->hasVFP4Base()) {
     setOperationAction(ISD::FMA, MVT::f64, Expand);
     setOperationAction(ISD::FMA, MVT::f32, Expand);
   }
 
   // Various VFP goodness
   if (!Subtarget->useSoftFloat() && !Subtarget->isThumb1Only()) {
     // FP-ARMv8 adds f64 <-> f16 conversion. Before that it should be expanded.
-    if (!Subtarget->hasFPARMv8() || Subtarget->isFPOnlySP()) {
+    if (!Subtarget->hasFPARMv8Base() || !Subtarget->hasFP64()) {
       setOperationAction(ISD::FP16_TO_FP, MVT::f64, Expand);
       setOperationAction(ISD::FP_TO_FP16, MVT::f64, Expand);
     }
 
     // fp16 is a special v7 extension that adds f16 <-> f32 conversions.
     if (!Subtarget->hasFP16()) {
       setOperationAction(ISD::FP16_TO_FP, MVT::f32, Expand);
       setOperationAction(ISD::FP_TO_FP16, MVT::f32, Expand);
     }
   }
 
   // Use __sincos_stret if available.
   if (getLibcallName(RTLIB::SINCOS_STRET_F32) != nullptr &&
       getLibcallName(RTLIB::SINCOS_STRET_F64) != nullptr) {
     setOperationAction(ISD::FSINCOS, MVT::f64, Custom);
     setOperationAction(ISD::FSINCOS, MVT::f32, Custom);
   }
 
   // FP-ARMv8 implements a lot of rounding-like FP operations.
-  if (Subtarget->hasFPARMv8()) {
+  if (Subtarget->hasFPARMv8Base()) {
     setOperationAction(ISD::FFLOOR, MVT::f32, Legal);
     setOperationAction(ISD::FCEIL, MVT::f32, Legal);
     setOperationAction(ISD::FROUND, MVT::f32, Legal);
     setOperationAction(ISD::FTRUNC, MVT::f32, Legal);
     setOperationAction(ISD::FNEARBYINT, MVT::f32, Legal);
     setOperationAction(ISD::FRINT, MVT::f32, Legal);
     setOperationAction(ISD::FMINNUM, MVT::f32, Legal);
     setOperationAction(ISD::FMAXNUM, MVT::f32, Legal);
     setOperationAction(ISD::FMINNUM, MVT::v2f32, Legal);
     setOperationAction(ISD::FMAXNUM, MVT::v2f32, Legal);
     setOperationAction(ISD::FMINNUM, MVT::v4f32, Legal);
     setOperationAction(ISD::FMAXNUM, MVT::v4f32, Legal);
 
-    if (!Subtarget->isFPOnlySP()) {
+    if (Subtarget->hasFP64()) {
       setOperationAction(ISD::FFLOOR, MVT::f64, Legal);
       setOperationAction(ISD::FCEIL, MVT::f64, Legal);
       setOperationAction(ISD::FROUND, MVT::f64, Legal);
       setOperationAction(ISD::FTRUNC, MVT::f64, Legal);
       setOperationAction(ISD::FNEARBYINT, MVT::f64, Legal);
       setOperationAction(ISD::FRINT, MVT::f64, Legal);
       setOperationAction(ISD::FMINNUM, MVT::f64, Legal);
       setOperationAction(ISD::FMAXNUM, MVT::f64, Legal);
ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM,
   if (Subtarget->hasV6Ops())
     setTargetDAGCombine(ISD::SRL);
   if (Subtarget->isThumb1Only())
     setTargetDAGCombine(ISD::SHL);
 
   setStackPointerRegisterToSaveRestore(ARM::SP);
 
   if (Subtarget->useSoftFloat() || Subtarget->isThumb1Only() ||
-      !Subtarget->hasVFP2())
+      !Subtarget->hasVFP2Base())
     setSchedulingPreference(Sched::RegPressure);
   else
     setSchedulingPreference(Sched::Hybrid);
 
   //// temporary - rewrite interface to use type
   MaxStoresPerMemset = 8;
   MaxStoresPerMemsetOptSize = 4;
   MaxStoresPerMemcpy = 4; // For @llvm.memcpy -> sequence of stores
ARMTargetLowering::getEffectiveCallingConv(CallingConv::ID CC,
   case CallingConv::PreserveMost:
     return CallingConv::PreserveMost;
   case CallingConv::ARM_AAPCS_VFP:
   case CallingConv::Swift:
     return isVarArg ? CallingConv::ARM_AAPCS : CallingConv::ARM_AAPCS_VFP;
   case CallingConv::C:
     if (!Subtarget->isAAPCS_ABI())
       return CallingConv::ARM_APCS;
-    else if (Subtarget->hasVFP2() && !Subtarget->isThumb1Only() &&
+    else if (Subtarget->hasVFP2Base() && !Subtarget->isThumb1Only() &&
              getTargetMachine().Options.FloatABIType == FloatABI::Hard &&
              !isVarArg)
       return CallingConv::ARM_AAPCS_VFP;
     else
       return CallingConv::ARM_AAPCS;
   case CallingConv::Fast:
   case CallingConv::CXX_FAST_TLS:
     if (!Subtarget->isAAPCS_ABI()) {
-      if (Subtarget->hasVFP2() && !Subtarget->isThumb1Only() && !isVarArg)
+      if (Subtarget->hasVFP2Base() && !Subtarget->isThumb1Only() && !isVarArg)
         return CallingConv::Fast;
       return CallingConv::ARM_APCS;
-    } else if (Subtarget->hasVFP2() && !Subtarget->isThumb1Only() && !isVarArg)
+    } else if (Subtarget->hasVFP2Base() &&
+               !Subtarget->isThumb1Only() && !isVarArg)
       return CallingConv::ARM_AAPCS_VFP;
     else
       return CallingConv::ARM_AAPCS;
   }
 }
 
 CCAssignFn *ARMTargetLowering::CCAssignFnForCall(CallingConv::ID CC,
                                                  bool isVarArg) const {
SDValue ARMTargetLowering::getARMCmp(SDValue LHS, SDValue RHS, ISD::CondCode CC,
   ARMcc = DAG.getConstant(CondCode, dl, MVT::i32);
   return DAG.getNode(CompareType, dl, MVT::Glue, LHS, RHS);
 }
 
 /// Returns a appropriate VFP CMP (fcmp{s|d}+fmstat) for the given operands.
 SDValue ARMTargetLowering::getVFPCmp(SDValue LHS, SDValue RHS,
                                      SelectionDAG &DAG, const SDLoc &dl,
                                      bool InvalidOnQNaN) const {
-  assert(!Subtarget->isFPOnlySP() || RHS.getValueType() != MVT::f64);
+  assert(Subtarget->hasFP64() || RHS.getValueType() != MVT::f64);
   SDValue Cmp;
   SDValue C = DAG.getConstant(InvalidOnQNaN, dl, MVT::i32);
   if (!isFloatingPointZero(RHS))
     Cmp = DAG.getNode(ARMISD::CMPFP, dl, MVT::Glue, LHS, RHS, C);
   else
     Cmp = DAG.getNode(ARMISD::CMPFPw0, dl, MVT::Glue, LHS, C);
   return DAG.getNode(ARMISD::FMSTAT, dl, MVT::Glue, Cmp);
 }
if (CC == ISD::SETUNE || CC == ISD::SETNE) {
     CondCode = ARMCC::EQ;
     swpVselOps = true;
   }
 }
 
 SDValue ARMTargetLowering::getCMOV(const SDLoc &dl, EVT VT, SDValue FalseVal,
                                    SDValue TrueVal, SDValue ARMcc, SDValue CCR,
                                    SDValue Cmp, SelectionDAG &DAG) const {
-  if (Subtarget->isFPOnlySP() && VT == MVT::f64) {
+  if (!Subtarget->hasFP64() && VT == MVT::f64) {
     FalseVal = DAG.getNode(ARMISD::VMOVRRD, dl,
                            DAG.getVTList(MVT::i32, MVT::i32), FalseVal);
     TrueVal = DAG.getNode(ARMISD::VMOVRRD, dl,
                           DAG.getVTList(MVT::i32, MVT::i32), TrueVal);
 
     SDValue TrueLow = TrueVal.getValue(0);
     SDValue TrueHigh = TrueVal.getValue(1);
     SDValue FalseLow = FalseVal.getValue(0);
SDValue ARMTargetLowering::LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const {
   }
 
   SDValue LHS = Op.getOperand(0);
   SDValue RHS = Op.getOperand(1);
   ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(4))->get();
   SDValue TrueVal = Op.getOperand(2);
   SDValue FalseVal = Op.getOperand(3);
 
-  if (Subtarget->isFPOnlySP() && LHS.getValueType() == MVT::f64) {
+  if (!Subtarget->hasFP64() && LHS.getValueType() == MVT::f64) {
     DAG.getTargetLoweringInfo().softenSetCCOperands(DAG, MVT::f64, LHS, RHS, CC,
                                                     dl);
 
     // If softenSetCCOperands only returned one value, we should compare it to
     // zero.
     if (!RHS.getNode()) {
       RHS = DAG.getConstant(0, dl, LHS.getValueType());
       CC = ISD::SETNE;
     }
   }
 
   if (LHS.getValueType() == MVT::i32) {
     // Try to generate VSEL on ARMv8.
     // The VSEL instruction can't use all the usual ARM condition
     // codes: it only has two bits to select the condition code, so it's
     // constrained to use only GE, GT, VS and EQ.
     //
     // To implement all the various ISD::SETXXX opcodes, we sometimes need to
     // swap the operands of the previous compare instruction (effectively
     // inverting the compare condition, swapping 'less' and 'greater') and
     // sometimes need to swap the operands to the VSEL (which inverts the
     // condition in the sense of firing whenever the previous condition didn't)
-    if (Subtarget->hasFPARMv8() && (TrueVal.getValueType() == MVT::f16 ||
+    if (Subtarget->hasFPARMv8Base() && (TrueVal.getValueType() == MVT::f16 ||
                                         TrueVal.getValueType() == MVT::f32 ||
                                         TrueVal.getValueType() == MVT::f64)) {
       ARMCC::CondCodes CondCode = IntCCToARMCC(CC);
       if (CondCode == ARMCC::LT || CondCode == ARMCC::LE ||
           CondCode == ARMCC::VC || CondCode == ARMCC::NE) {
         CC = ISD::getSetCCInverse(CC, true);
         std::swap(TrueVal, FalseVal);
       }
     }
 
     SDValue ARMcc;
     SDValue CCR = DAG.getRegister(ARM::CPSR, MVT::i32);
     SDValue Cmp = getARMCmp(LHS, RHS, CC, ARMcc, DAG, dl);
     return getCMOV(dl, VT, FalseVal, TrueVal, ARMcc, CCR, Cmp, DAG);
   }
 
   ARMCC::CondCodes CondCode, CondCode2;
   bool InvalidOnQNaN;
   FPCCToARMCC(CC, CondCode, CondCode2, InvalidOnQNaN);
 
   // Normalize the fp compare. If RHS is zero we prefer to keep it there so we
   // match CMPFPw0 instead of CMPFP, though we don't do this for f16 because we
   // must use VSEL (limited condition codes), due to not having conditional f16
   // moves.
-  if (Subtarget->hasFPARMv8() &&
+  if (Subtarget->hasFPARMv8Base() &&
       !(isFloatingPointZero(RHS) && TrueVal.getValueType() != MVT::f16) &&
       (TrueVal.getValueType() == MVT::f16 ||
        TrueVal.getValueType() == MVT::f32 ||
        TrueVal.getValueType() == MVT::f64)) {
     bool swpCmpOps = false;
     bool swpVselOps = false;
     checkVSELConstraints(CC, CondCode, swpCmpOps, swpVselOps);
 

 SDValue ARMTargetLowering::LowerBR_CC(SDValue Op, SelectionDAG &DAG) const {
   SDValue Chain = Op.getOperand(0);
   ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(1))->get();
   SDValue LHS = Op.getOperand(2);
   SDValue RHS = Op.getOperand(3);
   SDValue Dest = Op.getOperand(4);
   SDLoc dl(Op);
 
-  if (Subtarget->isFPOnlySP() && LHS.getValueType() == MVT::f64) {
+  if (!Subtarget->hasFP64() && LHS.getValueType() == MVT::f64) {
     DAG.getTargetLoweringInfo().softenSetCCOperands(DAG, MVT::f64, LHS, RHS, CC,
                                                     dl);
 
     // If softenSetCCOperands only returned one value, we should compare it to
     // zero.
     if (!RHS.getNode()) {
       RHS = DAG.getConstant(0, dl, LHS.getValueType());
       CC = ISD::SETNE;
static SDValue LowerVectorFP_TO_INT(SDValue Op, SelectionDAG &DAG) {
   Op = DAG.getNode(Op.getOpcode(), dl, NewTy, Op.getOperand(0));
   return DAG.getNode(ISD::TRUNCATE, dl, VT, Op);
 }
 
 SDValue ARMTargetLowering::LowerFP_TO_INT(SDValue Op, SelectionDAG &DAG) const {
   EVT VT = Op.getValueType();
   if (VT.isVector())
     return LowerVectorFP_TO_INT(Op, DAG);
-  if (Subtarget->isFPOnlySP() && Op.getOperand(0).getValueType() == MVT::f64) {
+  if (!Subtarget->hasFP64() && Op.getOperand(0).getValueType() == MVT::f64) {
     RTLIB::Libcall LC;
     if (Op.getOpcode() == ISD::FP_TO_SINT)
       LC = RTLIB::getFPTOSINT(Op.getOperand(0).getValueType(),
                               Op.getValueType());
     else
       LC = RTLIB::getFPTOUINT(Op.getOperand(0).getValueType(),
                               Op.getValueType());
     return makeLibCall(DAG, LC, Op.getValueType(), Op.getOperand(0),
static SDValue LowerVectorINT_TO_FP(SDValue Op, SelectionDAG &DAG) {
   Op = DAG.getNode(CastOpc, dl, DestVecType, Op.getOperand(0));
   return DAG.getNode(Opc, dl, VT, Op);
 }
 
 SDValue ARMTargetLowering::LowerINT_TO_FP(SDValue Op, SelectionDAG &DAG) const {
   EVT VT = Op.getValueType();
   if (VT.isVector())
     return LowerVectorINT_TO_FP(Op, DAG);
-  if (Subtarget->isFPOnlySP() && Op.getValueType() == MVT::f64) {
+  if (!Subtarget->hasFP64() && Op.getValueType() == MVT::f64) {
     RTLIB::Libcall LC;
     if (Op.getOpcode() == ISD::SINT_TO_FP)
       LC = RTLIB::getSINTTOFP(Op.getOperand(0).getValueType(),
                               Op.getValueType());
     else
       LC = RTLIB::getUINTTOFP(Op.getOperand(0).getValueType(),
                               Op.getValueType());
     return makeLibCall(DAG, LC, Op.getValueType(), Op.getOperand(0),
switch (VT.getSimpleVT().SimpleTy) {
         return DAG.getNode(ARMISD::VMOVDRR, DL, MVT::f64, Lo, Hi);
       }
       case MVT::f32:
           return DAG.getNode(ARMISD::VMOVSR, DL, VT,
               DAG.getConstant(INTVal, DL, MVT::i32));
     }
   }
 
-  if (!ST->hasVFP3())
+  if (!ST->hasVFP3Base())
     return SDValue();
 
   // Use the default (constant pool) lowering for double constants when we have
   // an SP-only FPU
-  if (IsDouble && Subtarget->isFPOnlySP())
+  if (IsDouble && !Subtarget->hasFP64())
     return SDValue();
 
   // Try splatting with a VMOV.f32...
   int ImmVal = IsDouble ? ARM_AM::getFP64Imm(FPVal) : ARM_AM::getFP32Imm(FPVal);
 
   if (ImmVal != -1) {
     if (IsDouble || !ST->useNEONForSinglePrecisionFP()) {
       // We have code in place to select a valid ConstantFP already, no need to

 
 /// PerformVMOVRRDCombine - Target-specific dag combine xforms for
 /// ARMISD::VMOVRRD.
 static SDValue PerformVMOVRRDCombine(SDNode *N,
                                      TargetLowering::DAGCombinerInfo &DCI,
                                      const ARMSubtarget *Subtarget) {
   // vmovrrd(vmovdrr x, y) -> x,y
   SDValue InDouble = N->getOperand(0);
-  if (InDouble.getOpcode() == ARMISD::VMOVDRR && !Subtarget->isFPOnlySP())
+  if (InDouble.getOpcode() == ARMISD::VMOVDRR && Subtarget->hasFP64())
     return DCI.CombineTo(N, InDouble.getOperand(0), InDouble.getOperand(1));
 
   // vmovrrd(load f64) -> (load i32), (load i32)
   SDNode *InNode = InDouble.getNode();
   if (ISD::isNormalLoad(InNode) && InNode->hasOneUse() &&
       InNode->getValueType(0) == MVT::f64 &&
       InNode->getOperand(1).getOpcode() == ISD::FrameIndex &&
       !cast<LoadSDNode>(InNode)->isVolatile()) {
static bool isLegalT2AddressImmediate(int64_t V, EVT VT,
   case MVT::i32:
     // + imm12 or - imm8
     if (isNeg)
       return V == (V & ((1LL << 8) - 1));
     return V == (V & ((1LL << 12) - 1));
   case MVT::f32:
   case MVT::f64:
     // Same as ARM mode. FIXME: NEON?
-    if (!Subtarget->hasVFP2())
+    if (!Subtarget->hasVFP2Base())
       return false;
     if ((V & 3) != 0)
       return false;
     V >>= 2;
     return V == (V & ((1LL << 8) - 1));
   }
 }
 
static bool isLegalAddressImmediate(int64_t V, EVT VT,
   case MVT::i32:
     // +- imm12
     return V == (V & ((1LL << 12) - 1));
   case MVT::i16:
     // +- imm8
     return V == (V & ((1LL << 8) - 1));
   case MVT::f32:
   case MVT::f64:
-    if (!Subtarget->hasVFP2()) // FIXME: NEON?
+    if (!Subtarget->hasVFP2Base()) // FIXME: NEON?
       return false;
     if ((V & 3) != 0)
       return false;
     V >>= 2;
     return V == (V & ((1LL << 8) - 1));
   }
 }
 

 const char *ARMTargetLowering::LowerXConstraint(EVT ConstraintVT) const {
   // At this point, we have to lower this constraint to something else, so we
   // lower it to an "r" or "w". However, by doing this we will force the result
   // to be in register, while the X constraint is much more permissive.
   //
   // Although we are correct (we are free to emit anything, without
   // constraints), we might break use cases that would expect us to be more
   // efficient and emit something else.
-  if (!Subtarget->hasVFP2())
+  if (!Subtarget->hasVFP2Base())
     return "r";
   if (ConstraintVT.isFloatingPoint())
     return "w";
   if (ConstraintVT.isVector() && Subtarget->hasNEON() &&
      (ConstraintVT.getSizeInBits() == 64 ||
       ConstraintVT.getSizeInBits() == 128))
     return "w";
 
ARMTargetLowering::LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) const {
   SDValue NewSP = DAG.getCopyFromReg(Chain, DL, ARM::SP, MVT::i32);
   Chain = NewSP.getValue(1);
 
   SDValue Ops[2] = { NewSP, Chain };
   return DAG.getMergeValues(Ops, DL);
 }
 
 SDValue ARMTargetLowering::LowerFP_EXTEND(SDValue Op, SelectionDAG &DAG) const {
-  assert(Op.getValueType() == MVT::f64 && Subtarget->isFPOnlySP() &&
+  assert(Op.getValueType() == MVT::f64 && !Subtarget->hasFP64() &&
          "Unexpected type for custom-lowering FP_EXTEND");
 
   RTLIB::Libcall LC;
   LC = RTLIB::getFPEXT(Op.getOperand(0).getValueType(), Op.getValueType());
 
   SDValue SrcVal = Op.getOperand(0);
   return makeLibCall(DAG, LC, Op.getValueType(), SrcVal, /*isSigned*/ false,
                      SDLoc(Op)).first;
 }
 
 SDValue ARMTargetLowering::LowerFP_ROUND(SDValue Op, SelectionDAG &DAG) const {
-  assert(Op.getOperand(0).getValueType() == MVT::f64 &&
-         Subtarget->isFPOnlySP() &&
+  assert(Op.getOperand(0).getValueType() == MVT::f64 && !Subtarget->hasFP64() &&
          "Unexpected type for custom-lowering FP_ROUND");
 
   RTLIB::Libcall LC;
   LC = RTLIB::getFPROUND(Op.getOperand(0).getValueType(), Op.getValueType());
 
   SDValue SrcVal = Op.getOperand(0);
   return makeLibCall(DAG, LC, Op.getValueType(), SrcVal, /*isSigned*/ false,
                      SDLoc(Op)).first;
bool ARM::isBitFieldInvertedMask(unsigned v) {
   return isShiftedMask_32(~v);
 }
 
 /// isFPImmLegal - Returns true if the target can instruction select the
 /// specified FP immediate natively. If false, the legalizer will
 /// materialize the FP immediate as a load from a constant pool.
 bool ARMTargetLowering::isFPImmLegal(const APFloat &Imm, EVT VT,
                                      bool ForCodeSize) const {
-  if (!Subtarget->hasVFP3())
+  if (!Subtarget->hasVFP3Base())
     return false;
   if (VT == MVT::f16 && Subtarget->hasFullFP16())
     return ARM_AM::getFP16Imm(Imm) != -1;
   if (VT == MVT::f32)
     return ARM_AM::getFP32Imm(Imm) != -1;
-  if (VT == MVT::f64 && !Subtarget->isFPOnlySP())
+  if (VT == MVT::f64 && Subtarget->hasFP64())
     return ARM_AM::getFP64Imm(Imm) != -1;
   return false;
 }
 
 /// getTgtMemIntrinsic - Represent NEON load and store intrinsics as
 /// MemIntrinsicNodes.  The associated MachineMemOperands record the alignment
 /// specified in the intrinsic calls.
 bool ARMTargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,

llvm/lib/Target/ARM/ARMInstrInfo.td

 def HasV8_2a         : Predicate<"Subtarget->hasV8_2aOps()">,
                                  AssemblerPredicate<"HasV8_2aOps", "armv8.2a">;
 def HasV8_3a         : Predicate<"Subtarget->hasV8_3aOps()">,
                                  AssemblerPredicate<"HasV8_3aOps", "armv8.3a">;
 def HasV8_4a         : Predicate<"Subtarget->hasV8_4aOps()">,
                                  AssemblerPredicate<"HasV8_4aOps", "armv8.4a">;
 def HasV8_5a         : Predicate<"Subtarget->hasV8_5aOps()">,
                                  AssemblerPredicate<"HasV8_5aOps", "armv8.5a">;
-def NoVFP            : Predicate<"!Subtarget->hasVFP2()">;
-def HasVFP2          : Predicate<"Subtarget->hasVFP2()">,
-                                 AssemblerPredicate<"FeatureVFP2", "VFP2">;
-def HasVFP3          : Predicate<"Subtarget->hasVFP3()">,
-                                 AssemblerPredicate<"FeatureVFP3", "VFP3">;
-def HasVFP4          : Predicate<"Subtarget->hasVFP4()">,
-                                 AssemblerPredicate<"FeatureVFP4", "VFP4">;
-def HasDPVFP         : Predicate<"!Subtarget->isFPOnlySP()">,
-                                 AssemblerPredicate<"!FeatureVFPOnlySP",
+def NoVFP            : Predicate<"!Subtarget->hasVFP2Base()">;
+def HasVFP2          : Predicate<"Subtarget->hasVFP2Base()">,
+                                 AssemblerPredicate<"FeatureVFP2_D16_SP", "VFP2">;
+def HasVFP3          : Predicate<"Subtarget->hasVFP3Base()">,
+                                 AssemblerPredicate<"FeatureVFP3_D16_SP", "VFP3">;
+def HasVFP4          : Predicate<"Subtarget->hasVFP4Base()">,
+                                 AssemblerPredicate<"FeatureVFP4_D16_SP", "VFP4">;
+def HasDPVFP         : Predicate<"Subtarget->hasFP64()">,
+                                 AssemblerPredicate<"FeatureFP64",
                                                     "double precision VFP">;
-def HasFPARMv8       : Predicate<"Subtarget->hasFPARMv8()">,
-                                 AssemblerPredicate<"FeatureFPARMv8", "FPARMv8">;
+def HasFPARMv8       : Predicate<"Subtarget->hasFPARMv8Base()">,
+                                 AssemblerPredicate<"FeatureFPARMv8_D16_SP", "FPARMv8">;
 def HasNEON          : Predicate<"Subtarget->hasNEON()">,
                                  AssemblerPredicate<"FeatureNEON", "NEON">;
 def HasSHA2          : Predicate<"Subtarget->hasSHA2()">,
                                  AssemblerPredicate<"FeatureSHA2", "sha2">;
 def HasAES           : Predicate<"Subtarget->hasAES()">,
                                  AssemblerPredicate<"FeatureAES", "aes">;
 def HasCrypto        : Predicate<"Subtarget->hasCrypto()">,
                                  AssemblerPredicate<"FeatureCrypto", "crypto">;

 def UseMulOps        : Predicate<"Subtarget->useMulOps()">;
 
 // Prefer fused MAC for fp mul + add over fp VMLA / VMLS if they are available.
 // But only select them if more precision in FP computation is allowed, and when
 // they are not slower than a mul + add sequence.
 // Do not use them for Darwin platforms.
 def UseFusedMAC      : Predicate<"(TM.Options.AllowFPOpFusion =="
                                  " FPOpFusion::Fast && "
-                                 " Subtarget->hasVFP4()) && "
+                                 " Subtarget->hasVFP4Base()) && "
                                  "!Subtarget->isTargetDarwin() &&"
                                  "Subtarget->useFPVMLx()">;
 
 def HasFastVGETLNi32 : Predicate<"!Subtarget->hasSlowVGETLNi32()">;
 def HasSlowVGETLNi32 : Predicate<"Subtarget->hasSlowVGETLNi32()">;
 
 def HasFastVDUP32 : Predicate<"!Subtarget->hasSlowVDUP32()">;
 def HasSlowVDUP32 : Predicate<"Subtarget->hasSlowVDUP32()">;

llvm/lib/Target/ARM/ARMInstructionSelector.cpp

static bool selectCopy(MachineInstr &I, const TargetInstrInfo &TII,
   return true;
 }
 
 static bool selectMergeValues(MachineInstrBuilder &MIB,
                               const ARMBaseInstrInfo &TII,
                               MachineRegisterInfo &MRI,
                               const TargetRegisterInfo &TRI,
                               const RegisterBankInfo &RBI) {
-  assert(TII.getSubtarget().hasVFP2() && "Can't select merge without VFP");
+  assert(TII.getSubtarget().hasVFP2Base() && "Can't select merge without VFP");
 
   // We only support G_MERGE_VALUES as a way to stick together two scalar GPRs
   // into one DPR.
   unsigned VReg0 = MIB->getOperand(0).getReg();
   (void)VReg0;
   assert(MRI.getType(VReg0).getSizeInBits() == 64 &&
          RBI.getRegBank(VReg0, MRI, TRI)->getID() == ARM::FPRRegBankID &&
          "Unsupported operand for G_MERGE_VALUES");
static bool selectMergeValues(MachineInstrBuilder &MIB,
   return true;
 }
 
 static bool selectUnmergeValues(MachineInstrBuilder &MIB,
                                 const ARMBaseInstrInfo &TII,
                                 MachineRegisterInfo &MRI,
                                 const TargetRegisterInfo &TRI,
                                 const RegisterBankInfo &RBI) {
-  assert(TII.getSubtarget().hasVFP2() && "Can't select unmerge without VFP");
+  assert(TII.getSubtarget().hasVFP2Base() &&
+         "Can't select unmerge without VFP");
 
   // We only support G_UNMERGE_VALUES as a way to break up one DPR into two
   // GPRs.
   unsigned VReg0 = MIB->getOperand(0).getReg();
   (void)VReg0;
   assert(MRI.getType(VReg0).getSizeInBits() == 32 &&
          RBI.getRegBank(VReg0, MRI, TRI)->getID() == ARM::GPRRegBankID &&
          "Unsupported operand for G_UNMERGE_VALUES");
bool ARMInstructionSelector::select(MachineInstr &I,
   case G_SELECT:
     return selectSelect(MIB, MRI);
   case G_ICMP: {
     CmpConstants Helper(Opcodes.CMPrr, ARM::INSTRUCTION_LIST_END,
                         Opcodes.MOVCCi, ARM::GPRRegBankID, 32);
     return selectCmp(Helper, MIB, MRI);
   }
   case G_FCMP: {
-    assert(STI.hasVFP2() && "Can't select fcmp without VFP");
+    assert(STI.hasVFP2Base() && "Can't select fcmp without VFP");
 
     unsigned OpReg = I.getOperand(2).getReg();
     unsigned Size = MRI.getType(OpReg).getSizeInBits();
 
-    if (Size == 64 && STI.isFPOnlySP()) {
+    if (Size == 64 && !STI.hasFP64()) {
       LLVM_DEBUG(dbgs() << "Subtarget only supports single precision");
       return false;
     }
     if (Size != 32 && Size != 64) {
       LLVM_DEBUG(dbgs() << "Unsupported size for G_FCMP operand");
       return false;
     }
 
case G_LOAD: {
     }
 
     unsigned Reg = I.getOperand(0).getReg();
     unsigned RegBank = RBI.getRegBank(Reg, MRI, TRI)->getID();
 
     LLT ValTy = MRI.getType(Reg);
     const auto ValSize = ValTy.getSizeInBits();
 
-    assert((ValSize != 64 || STI.hasVFP2()) &&
+    assert((ValSize != 64 || STI.hasVFP2Base()) &&
            "Don't know how to load/store 64-bit value without VFP");
 
     const auto NewOpc = selectLoadStoreOpCode(I.getOpcode(), RegBank, ValSize);
     if (NewOpc == G_LOAD || NewOpc == G_STORE)
       return false;
 
     if (ValSize == 1 && NewOpc == Opcodes.STORE8) {
       // Before storing a 1-bit value, make sure to clear out any unneeded bits.

llvm/lib/Target/ARM/ARMLegalizerInfo.cpp

auto &PhiBuilder =
       getActionDefinitionsBuilder(G_PHI)
           .legalFor({s32, p0})
           .minScalar(0, s32);
 
   getActionDefinitionsBuilder(G_GEP).legalFor({{p0, s32}});
 
   getActionDefinitionsBuilder(G_BRCOND).legalFor({s1});
 
-  if (!ST.useSoftFloat() && ST.hasVFP2()) {
+  if (!ST.useSoftFloat() && ST.hasVFP2Base()) {
     getActionDefinitionsBuilder(
         {G_FADD, G_FSUB, G_FMUL, G_FDIV, G_FCONSTANT, G_FNEG})
         .legalFor({s32, s64});
 
     LoadStoreBuilder
         .legalForTypesWithMemDesc({{s64, p0, 64, 32}})
         .maxScalar(0, s32);
     PhiBuilder.legalFor({s64});
if (!ST.useSoftFloat() && ST.hasVFP2Base()) {
     getActionDefinitionsBuilder(G_FPTRUNC).libcallFor({{s32, s64}});
 
     getActionDefinitionsBuilder({G_FPTOSI, G_FPTOUI})
         .libcallForCartesianProduct({s32}, {s32, s64});
     getActionDefinitionsBuilder({G_SITOFP, G_UITOFP})
         .libcallForCartesianProduct({s32, s64}, {s32});
   }
 
-  if (!ST.useSoftFloat() && ST.hasVFP4())
+  if (!ST.useSoftFloat() && ST.hasVFP4Base())
     getActionDefinitionsBuilder(G_FMA).legalFor({s32, s64});
   else
     getActionDefinitionsBuilder(G_FMA).libcallFor({s32, s64});
 
   getActionDefinitionsBuilder({G_FREM, G_FPOW}).libcallFor({s32, s64});
 
   if (ST.hasV5TOps()) {
     getActionDefinitionsBuilder(G_CTLZ)

llvm/lib/Target/ARM/ARMRegisterBankInfo.cpp

default:
     return getInvalidInstructionMapping();
   }
 
 #ifndef NDEBUG
   for (unsigned i = 0; i < NumOperands; i++) {
     for (const auto &Mapping : OperandsMapping[i]) {
       assert(
           (Mapping.RegBank->getID() != ARM::FPRRegBankID ||
-           MF.getSubtarget<ARMSubtarget>().hasVFP2()) &&
+           MF.getSubtarget<ARMSubtarget>().hasVFP2Base()) &&
           "Trying to use floating point register bank on target without vfp");
     }
   }
 #endif
 
   return getInstructionMapping(DefaultMappingID, /*Cost=*/1, OperandsMapping,
                                NumOperands);
 }

llvm/lib/Target/ARM/ARMSubtarget.h

protected:
   /// HasVFPv2, HasVFPv3, HasVFPv4, HasFPARMv8, HasNEON - Specify what
   /// floating point ISAs are supported.
   bool HasVFPv2 = false;
   bool HasVFPv3 = false;
   bool HasVFPv4 = false;
   bool HasFPARMv8 = false;
   bool HasNEON = false;
 
+  /// Versions of the VFP flags restricted to single precision, or to
+  /// 16 d-registers, or both.
+  bool HasVFPv2SP = false;
+  bool HasVFPv3SP = false;
+  bool HasVFPv4SP = false;
+  bool HasFPARMv8SP = false;
+  bool HasVFPv2D16 = false;
+  bool HasVFPv3D16 = false;
+  bool HasVFPv4D16 = false;
+  bool HasFPARMv8D16 = false;
+  bool HasVFPv2D16SP = false;
+  bool HasVFPv3D16SP = false;
+  bool HasVFPv4D16SP = false;
+  bool HasFPARMv8D16SP = false;
+
   /// HasDotProd - True if the ARMv8.2A dot product instructions are supported.
   bool HasDotProd = false;
 
   /// UseNEONForSinglePrecisionFP - if the NEONFP attribute has been
   /// specified. Use the method useNEONForSinglePrecisionFP() to
   /// determine if NEON should actually be used.
   bool UseNEONForSinglePrecisionFP = false;
 
protected:
   bool HasFP16 = false;
 
   /// HasFullFP16 - True if subtarget supports half-precision FP operations
   bool HasFullFP16 = false;
 
   /// HasFP16FML - True if subtarget supports half-precision FP fml operations
   bool HasFP16FML = false;
 
-  /// HasD16 - True if subtarget is limited to 16 double precision
+  /// HasD32 - True if subtarget has the full 32 double precision
   /// FP registers for VFPv3.
-  bool HasD16 = false;
+  bool HasD32 = false;
 
   /// HasHardwareDivide - True if subtarget supports [su]div in Thumb mode
   bool HasHardwareDivideInThumb = false;
 
   /// HasHardwareDivideInARM - True if subtarget supports [su]div in ARM mode
   bool HasHardwareDivideInARM = false;
 
   /// HasDataBarrier - True if the subtarget supports DMB / DSB data barrier
protected:
   /// HasMPExtension - True if the subtarget supports Multiprocessing
   /// extension (ARMv7 only).
   bool HasMPExtension = false;
 
   /// HasVirtualization - True if the subtarget supports the Virtualization
   /// extension.
   bool HasVirtualization = false;
 
-  /// FPOnlySP - If true, the floating point unit only supports single
+  /// HasFP64 - If true, the floating point unit supports double
   /// precision.
-  bool FPOnlySP = false;
+  bool HasFP64 = false;
 
   /// If true, the processor supports the Performance Monitor Extensions. These
   /// include a generic cycle-counter as well as more fine-grained (often
   /// implementation-specific) events.
   bool HasPerfMon = false;
 
   /// HasTrustZone - if true, processor supports TrustZone security extensions
   bool HasTrustZone = false;
public:
   bool isSwift()    const { return ARMProcFamily == Swift; }
   bool isCortexM3() const { return ARMProcFamily == CortexM3; }
   bool isLikeA9() const { return isCortexA9() || isCortexA15() || isKrait(); }
   bool isCortexR5() const { return ARMProcFamily == CortexR5; }
   bool isKrait() const { return ARMProcFamily == Krait; }
   /// @}
 
   bool hasARMOps() const { return !NoARM; }
 
-  bool hasVFP2() const { return HasVFPv2; }
-  bool hasVFP3() const { return HasVFPv3; }
-  bool hasVFP4() const { return HasVFPv4; }
-  bool hasFPARMv8() const { return HasFPARMv8; }
+  bool hasVFP2Base() const { return HasVFPv2D16SP; }
+  bool hasVFP3Base() const { return HasVFPv3D16SP; }
+  bool hasVFP4Base() const { return HasVFPv4D16SP; }
+  bool hasFPARMv8Base() const { return HasFPARMv8D16SP; }
   bool hasNEON() const { return HasNEON;  }
   bool hasSHA2() const { return HasSHA2; }
   bool hasAES() const { return HasAES; }
   bool hasCrypto() const { return HasCrypto; }
   bool hasDotProd() const { return HasDotProd; }
   bool hasCRC() const { return HasCRC; }
   bool hasRAS() const { return HasRAS; }
   bool hasVirtualization() const { return HasVirtualization; }
public:
   bool hasAnyDataBarrier() const {
     return HasDataBarrier || (hasV6Ops() && !isThumb());
   }
 
   bool useMulOps() const { return UseMulOps; }
   bool useFPVMLx() const { return !SlowFPVMLx; }
   bool hasVMLxForwarding() const { return HasVMLxForwarding; }
   bool isFPBrccSlow() const { return SlowFPBrcc; }
-  bool isFPOnlySP() const { return FPOnlySP; }
+  bool hasFP64() const { return HasFP64; }
   bool hasPerfMon() const { return HasPerfMon; }
   bool hasTrustZone() const { return HasTrustZone; }
   bool has8MSecExt() const { return Has8MSecExt; }
   bool hasZeroCycleZeroing() const { return HasZeroCycleZeroing; }
   bool hasFPAO() const { return HasFPAO; }
   bool isProfitableToUnpredicate() const { return IsProfitableToUnpredicate; }
   bool hasSlowVGETLNi32() const { return HasSlowVGETLNi32; }
   bool hasSlowVDUP32() const { return HasSlowVDUP32; }
public:
   bool hasDSP() const { return HasDSP; }
   bool useNaClTrap() const { return UseNaClTrap; }
   bool useSjLjEH() const { return UseSjLjEH; }
   bool hasSB() const { return HasSB; }
   bool genLongCalls() const { return GenLongCalls; }
   bool genExecuteOnly() const { return GenExecuteOnly; }
 
   bool hasFP16() const { return HasFP16; }
-  bool hasD16() const { return HasD16; }
+  bool hasD32() const { return HasD32; }
   bool hasFullFP16() const { return HasFullFP16; }
   bool hasFP16FML() const { return HasFP16FML; }
 
   bool hasFuseAES() const { return HasFuseAES; }
   bool hasFuseLiterals() const { return HasFuseLiterals; }
   /// Return true if the CPU supports any kind of instruction fusion.
   bool hasFusion() const { return hasFuseAES() || hasFuseLiterals(); }
 

llvm/lib/Target/ARM/ARMTargetTransformInfo.h

class ARMTTIImpl : public BasicTTIImplBase<ARMTTIImpl> {
   using TTI = TargetTransformInfo;
 
   friend BaseT;
 
   const ARMSubtarget *ST;
   const ARMTargetLowering *TLI;
 
   // Currently the following features are excluded from InlineFeatureWhitelist.
-  // ModeThumb, FeatureNoARM, ModeSoftFloat, FeatureVFPOnlySP, FeatureD16
+  // ModeThumb, FeatureNoARM, ModeSoftFloat, FeatureFP64, FeatureD32
   // Depending on whether they are set or unset, different
   // instructions/registers are available. For example, inlining a callee with
   // -thumb-mode in a caller with +thumb-mode, may cause the assembler to
   // fail if the callee uses ARM only instructions, e.g. in inline asm.
   const FeatureBitset InlineFeatureWhitelist = {
       ARM::FeatureVFP2, ARM::FeatureVFP3, ARM::FeatureNEON, ARM::FeatureThumb2,
       ARM::FeatureFP16, ARM::FeatureVFP4, ARM::FeatureFPARMv8,
       ARM::FeatureFullFP16, ARM::FeatureFP16FML, ARM::FeatureHWDivThumb,

llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp

class ARMAsmParser : public MCTargetAsmParser {
   bool hasARM() const {
     return !getSTI().getFeatureBits()[ARM::FeatureNoARM];
   }
 
   bool hasDSP() const {
     return getSTI().getFeatureBits()[ARM::FeatureDSP];
   }
 
-  bool hasD16() const {
-    return getSTI().getFeatureBits()[ARM::FeatureD16];
+  bool hasD32() const {
+    return getSTI().getFeatureBits()[ARM::FeatureD32];
   }
 
   bool hasV8_1aOps() const {
     return getSTI().getFeatureBits()[ARM::HasV8_1aOps];
   }
 
   bool hasRAS() const {
     return getSTI().getFeatureBits()[ARM::FeatureRAS];
if (!RegNum) {
     // If no match, return failure.
     if (Entry == RegisterReqs.end())
       return -1;
     Parser.Lex(); // Eat identifier token.
     return Entry->getValue();
   }
 
   // Some FPUs only have 16 D registers, so D16-D31 are invalid
-  if (hasD16() && RegNum >= ARM::D16 && RegNum <= ARM::D31)
+  if (!hasD32() && RegNum >= ARM::D16 && RegNum <= ARM::D31)
     return -1;
 
   Parser.Lex(); // Eat identifier token.
 
   return RegNum;
 }
 
 // Try to parse a shifter  (e.g., "lsl <amt>"). On success, return 0.

 ARMAsmParser::getCustomOperandDiag(ARMMatchResultTy MatchError) {
   switch (MatchError) {
   // rGPR contains sp starting with ARMv8.
   case Match_rGPR:
     return hasV8Ops() ? "operand must be a register in range [r0, r14]"
                       : "operand must be a register in range [r0, r12] or r14";
   // DPR contains 16 registers for some FPUs, and 32 for others.
   case Match_DPR:
-    return hasD16() ? "operand must be a register in range [d0, d15]"
-                    : "operand must be a register in range [d0, d31]";
+    return hasD32() ? "operand must be a register in range [d0, d31]"
+                    : "operand must be a register in range [d0, d15]";
   case Match_DPR_RegList:
-    return hasD16() ? "operand must be a list of registers in range [d0, d15]"
-                    : "operand must be a list of registers in range [d0, d31]";
+    return hasD32() ? "operand must be a list of registers in range [d0, d31]"
+                    : "operand must be a list of registers in range [d0, d15]";
 
   // For all other diags, use the static string from tablegen.
   default:
     return getMatchKindDiag(MatchError);
   }
 }
 
 // Process the list of near-misses, throwing away ones we don't want to report
bool ARMAsmParser::parseDirectiveArchExtension(SMLoc L) {
   static const struct {
     const unsigned Kind;
     const FeatureBitset ArchCheck;
     const FeatureBitset Features;
   } Extensions[] = {
     { ARM::AEK_CRC, {Feature_HasV8Bit}, {ARM::FeatureCRC} },
     { ARM::AEK_CRYPTO,  {Feature_HasV8Bit},
       {ARM::FeatureCrypto, ARM::FeatureNEON, ARM::FeatureFPARMv8} },
-    { ARM::AEK_FP, {Feature_HasV8Bit}, {ARM::FeatureFPARMv8} },
+    { ARM::AEK_FP, {Feature_HasV8Bit},
+      {ARM::FeatureVFP2_D16_SP, ARM::FeatureFPARMv8} },
     { (ARM::AEK_HWDIVTHUMB | ARM::AEK_HWDIVARM),
       {Feature_HasV7Bit, Feature_IsNotMClassBit},
       {ARM::FeatureHWDivThumb, ARM::FeatureHWDivARM} },
     { ARM::AEK_MP, {Feature_HasV7Bit, Feature_IsNotMClassBit},
       {ARM::FeatureMP} },
     { ARM::AEK_SIMD, {Feature_HasV8Bit},
-      {ARM::FeatureNEON, ARM::FeatureFPARMv8} },
+      {ARM::FeatureNEON, ARM::FeatureVFP2_D16_SP, ARM::FeatureFPARMv8} },
     { ARM::AEK_SEC, {Feature_HasV6KBit}, {ARM::FeatureTrustZone} },
     // FIXME: Only available in A-class, isel not predicated
     { ARM::AEK_VIRT, {Feature_HasV7Bit}, {ARM::FeatureVirtualization} },
     { ARM::AEK_FP16, {Feature_HasV8_2aBit},
       {ARM::FeatureFPARMv8, ARM::FeatureFullFP16} },
     { ARM::AEK_RAS, {Feature_HasV8Bit}, {ARM::FeatureRAS} },
     // FIXME: Unsupported extensions.
     { ARM::AEK_OS, {}, {} },
if (Extension.Features.none())
       return Error(ExtLoc, "unsupported architectural extension: " + Name);
 
     if ((getAvailableFeatures() & Extension.ArchCheck) != Extension.ArchCheck)
       return Error(ExtLoc, "architectural extension '" + Name +
                                "' is not "
                                "allowed for the current base architecture");
 
     MCSubtargetInfo &STI = copySTI();
-    FeatureBitset ToggleFeatures = EnableFeature
-      ? (~STI.getFeatureBits() & Extension.Features)
-      : ( STI.getFeatureBits() & Extension.Features);
-
-    FeatureBitset Features =
-        ComputeAvailableFeatures(STI.ToggleFeature(ToggleFeatures));
+    if (EnableFeature) {
+      STI.SetFeatureBitsTransitively(Extension.Features);
+    } else {
+      STI.ClearFeatureBitsTransitively(Extension.Features);
+    }
+    FeatureBitset Features = ComputeAvailableFeatures(STI.getFeatureBits());
     setAvailableFeatures(Features);
     return false;
   }
 
   return Error(ExtLoc, "unknown architectural extension: " + Name);
 }
 
 // Define this matcher function after the auto-generated include so we

llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp

static const uint16_t DPRDecoderTable[] = {
     ARM::D28, ARM::D29, ARM::D30, ARM::D31
 };
 
 static DecodeStatus DecodeDPRRegisterClass(MCInst &Inst, unsigned RegNo,
                                    uint64_t Address, const void *Decoder) {
   const FeatureBitset &featureBits =
     ((const MCDisassembler*)Decoder)->getSubtargetInfo().getFeatureBits();
 
-  bool hasD16 = featureBits[ARM::FeatureD16];
+  bool hasD32 = featureBits[ARM::FeatureD32];
 
-  if (RegNo > 31 || (hasD16 && RegNo > 15))
+  if (RegNo > 31 || (!hasD32 && RegNo > 15))
     return MCDisassembler::Fail;
 
   unsigned Register = DPRDecoderTable[RegNo];
   Inst.addOperand(MCOperand::createReg(Register));
   return MCDisassembler::Success;
 }
 
 static DecodeStatus DecodeDPR_8RegisterClass(MCInst &Inst, unsigned RegNo,

llvm/lib/Target/ARM/MCTargetDesc/ARMTargetStreamer.cpp

else
                                                : ARM::FK_NEON);
     // Emit Tag_Advanced_SIMD_arch for ARMv8 architecture
     if (STI.hasFeature(ARM::HasV8Ops))
       emitAttribute(ARMBuildAttrs::Advanced_SIMD_arch,
                     STI.hasFeature(ARM::HasV8_1aOps)
                         ? ARMBuildAttrs::AllowNeonARMv8_1a
                         : ARMBuildAttrs::AllowNeonARMv8);
   } else {
-    if (STI.hasFeature(ARM::FeatureFPARMv8))
+    if (STI.hasFeature(ARM::FeatureFPARMv8_D16_SP))
       // FPv5 and FP-ARMv8 have the same instructions, so are modeled as one
       // FPU, but there are two different names for it depending on the CPU.
-      emitFPU(STI.hasFeature(ARM::FeatureD16)
-                  ? (STI.hasFeature(ARM::FeatureVFPOnlySP) ? ARM::FK_FPV5_SP_D16
-                                                           : ARM::FK_FPV5_D16)
-                  : ARM::FK_FP_ARMV8);
-    else if (STI.hasFeature(ARM::FeatureVFP4))
-      emitFPU(STI.hasFeature(ARM::FeatureD16)
-                  ? (STI.hasFeature(ARM::FeatureVFPOnlySP) ? ARM::FK_FPV4_SP_D16
-                                                           : ARM::FK_VFPV4_D16)
-                  : ARM::FK_VFPV4);
-    else if (STI.hasFeature(ARM::FeatureVFP3))
+      emitFPU(STI.hasFeature(ARM::FeatureD32)
+                  ? ARM::FK_FP_ARMV8
+                  : (STI.hasFeature(ARM::FeatureFP64) ? ARM::FK_FPV5_D16
+                                                      : ARM::FK_FPV5_SP_D16));
+    else if (STI.hasFeature(ARM::FeatureVFP4_D16_SP))
+      emitFPU(STI.hasFeature(ARM::FeatureD32)
+                  ? ARM::FK_VFPV4
+                  : (STI.hasFeature(ARM::FeatureFP64) ? ARM::FK_VFPV4_D16
+                                                      : ARM::FK_FPV4_SP_D16));
+    else if (STI.hasFeature(ARM::FeatureVFP3_D16_SP))
       emitFPU(
-          STI.hasFeature(ARM::FeatureD16)
-              // +d16
-              ? (STI.hasFeature(ARM::FeatureVFPOnlySP)
-                     ? (STI.hasFeature(ARM::FeatureFP16) ? ARM::FK_VFPV3XD_FP16
-                                                         : ARM::FK_VFPV3XD)
-                     : (STI.hasFeature(ARM::FeatureFP16)
+          STI.hasFeature(ARM::FeatureD32)
+              // +d32
+              ? (STI.hasFeature(ARM::FeatureFP16) ? ARM::FK_VFPV3_FP16
+                                                  : ARM::FK_VFPV3)
+              // -d32
+              : (STI.hasFeature(ARM::FeatureFP64)
+                     ? (STI.hasFeature(ARM::FeatureFP16)
                             ? ARM::FK_VFPV3_D16_FP16
-                            : ARM::FK_VFPV3_D16))
-              // -d16
-              : (STI.hasFeature(ARM::FeatureFP16) ? ARM::FK_VFPV3_FP16
-                                                  : ARM::FK_VFPV3));
-    else if (STI.hasFeature(ARM::FeatureVFP2))
+                            : ARM::FK_VFPV3_D16)
+                     : (STI.hasFeature(ARM::FeatureFP16) ? ARM::FK_VFPV3XD_FP16
+                                                         : ARM::FK_VFPV3XD)));
+    else if (STI.hasFeature(ARM::FeatureVFP2_D16_SP))
       emitFPU(ARM::FK_VFPV2);
   }
 
   // ABI_HardFP_use attribute to indicate single precision FP.
-  if (STI.hasFeature(ARM::FeatureVFPOnlySP))
+  if (STI.hasFeature(ARM::FeatureVFP2_D16_SP) && !STI.hasFeature(ARM::FeatureFP64))
     emitAttribute(ARMBuildAttrs::ABI_HardFP_use,
                   ARMBuildAttrs::HardFPSinglePrecision);
 
   if (STI.hasFeature(ARM::FeatureFP16))
     emitAttribute(ARMBuildAttrs::FP_HP_extension, ARMBuildAttrs::AllowHPFP);
 
   if (STI.hasFeature(ARM::FeatureMP))
     emitAttribute(ARMBuildAttrs::MPextension_use, ARMBuildAttrs::AllowMP);

llvm/test/CodeGen/ARM/GlobalISel/arm-legalize-load-store.mir

 # RUN: llc -mtriple arm-- -run-pass=legalizer %s -o - | FileCheck %s
 # RUN: llc -mtriple thumbv7-- -run-pass=legalizer %s -o - | FileCheck %s
 --- |
   define void @test_legal_loads_stores() { ret void }
   define void @test_load_from_stack() { ret void }
 
   define void @test_load_store_64_vfp() #0 { ret void }
   define void @test_load_store_64_novfp() #1 { ret void }
 
   define void @test_gep() { ret void }
 
   attributes #0 = { "target-features"="+vfp2" }
-  attributes #1 = { "target-features"="-vfp2" }
+  attributes #1 = { "target-features"="-vfp2d16sp" }
 ...
 ---
 name:            test_legal_loads_stores
 # CHECK-LABEL: name: test_legal_loads_stores
 legalized:       false
 # CHECK: legalized: true
 regBankSelected: false
 selected:        false

llvm/test/CodeGen/ARM/arm-storebytesmerge.ll

; CHECK-NEXT:    bx lr
   store i8 -3, i8* %v305, align 1
   %v306 = getelementptr inbounds i8, i8* %v50, i32 510
   store i8 -2, i8* %v306, align 1
   %v307 = getelementptr inbounds i8, i8* %v50, i32 511
   store i8 -1, i8* %v307, align 1
   ret void
   }
 
-attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "denormal-fp-math"="preserve-sign" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-jump-tables"="false" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="cortex-m7" "target-features"="+d16,+dsp,+fp-armv8,+hwdiv,+thumb-mode,-crc,-crypto,-dotprod,-fp-only-sp,-fullfp16,-hwdiv-arm,-neon,-ras" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "denormal-fp-math"="preserve-sign" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-jump-tables"="false" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="cortex-m7" "target-features"="-d32,+dsp,+fp-armv8,+hwdiv,+thumb-mode,-crc,-crypto,-dotprod,-fullfp16,-hwdiv-arm,-neon,-ras" "unsafe-fp-math"="false" "use-soft-float"="false" }
 

llvm/test/CodeGen/ARM/arm32-rounding.ll

 ; RUN: llc < %s -mtriple=armv8-linux-gnueabihf -mattr=+fp-armv8 | FileCheck --check-prefix=CHECK --check-prefix=DP %s
-; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabihf -mattr=+fp-armv8,+d16,+fp-only-sp | FileCheck --check-prefix=SP %s
-; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabihf -mattr=+fp-armv8,+d16 | FileCheck --check-prefix=DP %s
+; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabihf -mattr=+fp-armv8,-d32,-fp64 | FileCheck --check-prefix=SP %s
+; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabihf -mattr=+fp-armv8,-d32 | FileCheck --check-prefix=DP %s
 
 ; CHECK-LABEL: test1
 ; CHECK: vrintm.f32
 define float @test1(float %a) {
 entry:
   %call = call float @floorf(float %a) nounwind readnone
   ret float %call
 }

llvm/test/CodeGen/ARM/build-attributes.ll

 ; RUN: llc < %s -mtriple=armv8-linux-gnueabi -mattr=-crypto | FileCheck %s --check-prefix=V8-FPARMv8-NEON
 ; RUN: llc < %s -mtriple=armv8-linux-gnueabi | FileCheck %s --check-prefix=V8-FPARMv8-NEON-CRYPTO
 ; RUN: llc < %s -mtriple=thumbv8m.base-linux-gnueabi | FileCheck %s --check-prefix=V8MBASELINE
 ; RUN: llc < %s -mtriple=thumbv8m.main-linux-gnueabi | FileCheck %s --check-prefix=V8MMAINLINE
 ; RUN: llc < %s -mtriple=thumbv8m.main-linux-gnueabi -mattr=+dsp | FileCheck %s --check-prefix=V8MMAINLINE_DSP
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a5 | FileCheck %s --check-prefix=CORTEX-A5-DEFAULT
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a5  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A5-DEFAULT-FAST
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a5 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
-; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a5 -mattr=-neon,+d16 | FileCheck %s --check-prefix=CORTEX-A5-NONEON
-; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a5 -mattr=-vfp2 | FileCheck %s --check-prefix=CORTEX-A5-NOFPU
-; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a5 -mattr=-vfp2  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A5-NOFPU-FAST
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a5 -mattr=-neon,-d32 | FileCheck %s --check-prefix=CORTEX-A5-NONEON
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a5 -mattr=-vfp2d16sp | FileCheck %s --check-prefix=CORTEX-A5-NOFPU
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a5 -mattr=-vfp2d16sp  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A5-NOFPU-FAST
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a8 -float-abi=soft | FileCheck %s --check-prefix=CORTEX-A8-SOFT
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a8 -float-abi=soft  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A8-SOFT-FAST
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a8 -float-abi=hard | FileCheck %s --check-prefix=CORTEX-A8-HARD
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a8 -float-abi=hard  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A8-HARD-FAST
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a8 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a8 -float-abi=soft | FileCheck %s --check-prefix=CORTEX-A8-SOFT
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a9 -float-abi=soft | FileCheck %s --check-prefix=CORTEX-A9-SOFT
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a9 -float-abi=soft  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A9-SOFT-FAST
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a9 -float-abi=hard | FileCheck %s --check-prefix=CORTEX-A9-HARD
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a9 -float-abi=hard  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A9-HARD-FAST
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a9 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a12 | FileCheck %s --check-prefix=CORTEX-A12-DEFAULT
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a9 -float-abi=soft | FileCheck %s --check-prefix=CORTEX-A9-SOFT
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a12  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A12-DEFAULT-FAST
-; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a12 -mattr=-vfp2 | FileCheck %s --check-prefix=CORTEX-A12-NOFPU
-; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a12 -mattr=-vfp2  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A12-NOFPU-FAST
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a12 -mattr=-vfp2d16sp | FileCheck %s --check-prefix=CORTEX-A12-NOFPU
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a12 -mattr=-vfp2d16sp  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A12-NOFPU-FAST
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a12 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a15 | FileCheck %s --check-prefix=CORTEX-A15
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a15  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A15-FAST
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a15 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a17 | FileCheck %s --check-prefix=CORTEX-A17-DEFAULT
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a17  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A17-FAST
-; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a17 -mattr=-vfp2 | FileCheck %s --check-prefix=CORTEX-A17-NOFPU
-; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a17 -mattr=-vfp2  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A17-NOFPU-FAST
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a17 -mattr=-vfp2d16sp | FileCheck %s --check-prefix=CORTEX-A17-NOFPU
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a17 -mattr=-vfp2d16sp  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A17-NOFPU-FAST
 
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a15 -enable-no-trapping-fp-math | FileCheck %s --check-prefix=NO-TRAPPING-MATH
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a15 -denormal-fp-math=ieee | FileCheck %s --check-prefix=DENORMAL-IEEE
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a15 -denormal-fp-math=preserve-sign | FileCheck %s --check-prefix=DENORMAL-PRESERVE-SIGN
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a15 -denormal-fp-math=positive-zero | FileCheck %s --check-prefix=DENORMAL-POSITIVE-ZERO
 
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mattr=-neon,+vfp3,+fp16 | FileCheck %s --check-prefix=GENERIC-FPU-VFPV3-FP16
-; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mattr=-neon,+vfp3,+d16,+fp16 | FileCheck %s --check-prefix=GENERIC-FPU-VFPV3-D16-FP16
-; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mattr=-neon,+vfp3,+fp-only-sp,+d16 | FileCheck %s --check-prefix=GENERIC-FPU-VFPV3XD
-; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mattr=-neon,+vfp3,+fp-only-sp,+d16,+fp16 | FileCheck %s --check-prefix=GENERIC-FPU-VFPV3XD-FP16
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mattr=-neon,+vfp3,-d32,+fp16 | FileCheck %s --check-prefix=GENERIC-FPU-VFPV3-D16-FP16
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mattr=-neon,+vfp3,-fp64,-d32 | FileCheck %s --check-prefix=GENERIC-FPU-VFPV3XD
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mattr=-neon,+vfp3,-fp64,-d32,+fp16 | FileCheck %s --check-prefix=GENERIC-FPU-VFPV3XD-FP16
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mattr=+neon,+fp16 | FileCheck %s --check-prefix=GENERIC-FPU-NEON-FP16
 
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a17 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0 | FileCheck %s --check-prefix=CORTEX-M0
 ; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0 -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M0-FAST
 ; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0plus | FileCheck %s --check-prefix=CORTEX-M0PLUS
 ; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0plus -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M0PLUS-FAST

 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -mcpu=sc300 | FileCheck %s --check-prefix=SC300
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -mcpu=sc300  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=SC300-FAST
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -mcpu=sc300 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -mcpu=cortex-m4 -float-abi=soft | FileCheck %s --check-prefix=CORTEX-M4-SOFT
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -mcpu=cortex-m4 -float-abi=soft  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M4-SOFT-FAST
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -mcpu=cortex-m4 -float-abi=hard | FileCheck %s --check-prefix=CORTEX-M4-HARD
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -mcpu=cortex-m4 -float-abi=hard  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M4-HARD-FAST
 ; RUN: llc < %s -mtriple=thumbv7m-linux-gnueabi -mcpu=cortex-m4 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
-; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabi -mcpu=cortex-m7 -mattr=-vfp2 | FileCheck %s --check-prefix=CORTEX-M7 --check-prefix=CORTEX-M7-SOFT
-; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabi -mcpu=cortex-m7 -mattr=-vfp2  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M7-NOFPU-FAST
-; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabi -mcpu=cortex-m7 -mattr=+fp-only-sp | FileCheck %s --check-prefix=CORTEX-M7 --check-prefix=CORTEX-M7-SINGLE
-; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabi -mcpu=cortex-m7 -mattr=+fp-only-sp  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M7-FAST
+; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabi -mcpu=cortex-m7 -mattr=-vfp2d16sp | FileCheck %s --check-prefix=CORTEX-M7 --check-prefix=CORTEX-M7-SOFT
+; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabi -mcpu=cortex-m7 -mattr=-vfp2d16sp  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M7-NOFPU-FAST
+; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabi -mcpu=cortex-m7 -mattr=-fp64 | FileCheck %s --check-prefix=CORTEX-M7 --check-prefix=CORTEX-M7-SINGLE
+; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabi -mcpu=cortex-m7 -mattr=-fp64  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M7-FAST
 ; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabi -mcpu=cortex-m7 | FileCheck %s --check-prefix=CORTEX-M7-DOUBLE
 ; RUN: llc < %s -mtriple=thumbv7em-linux-gnueabi -mcpu=cortex-m7 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=thumbv8-linux-gnueabi -mcpu=cortex-m23 | FileCheck %s --check-prefix=CORTEX-M23
 ; RUN: llc < %s -mtriple=thumbv8-linux-gnueabi -mcpu=cortex-m33 | FileCheck %s --check-prefix=CORTEX-M33
 ; RUN: llc < %s -mtriple=thumbv8-linux-gnueabi -mcpu=cortex-m33 -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-M33-FAST
 ; RUN: llc < %s -mtriple=thumbv8-linux-gnueabi -mcpu=cortex-m33 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 
 ; RUN: llc < %s -mtriple=thumbv8-linux-gnueabi -mcpu=cortex-m35p | FileCheck %s --check-prefix=CORTEX-M35P

 ; RUN: llc < %s -mtriple=armv8-linux-gnueabi -mcpu=exynos-m4 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=armv8-linux-gnueabi -mcpu=exynos-m5 | FileCheck %s --check-prefix=EXYNOS-M5
 ; RUN: llc < %s -mtriple=armv8-linux-gnueabi -mcpu=exynos-m5  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=EXYNOS-M1-FAST
 ; RUN: llc < %s -mtriple=armv8-linux-gnueabi -mcpu=exynos-m5 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=armv8.1a-linux-gnueabi  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=GENERIC-ARMV8_1-A-FAST
 ; RUN: llc < %s -mtriple=armv8.1a-linux-gnueabi -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 | FileCheck %s  --check-prefix=CORTEX-A7-CHECK
 ; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s  --check-prefix=CORTEX-A7-CHECK-FAST
-; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -mattr=-vfp2,-vfp3,-vfp4,-neon,-fp16 | FileCheck %s --check-prefix=CORTEX-A7-NOFPU
-; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -mattr=-vfp2,-vfp3,-vfp4,-neon,-fp16  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A7-NOFPU-FAST
+; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -mattr=-vfp2d16sp,-vfp3,-vfp4,-neon,-fp16 | FileCheck %s --check-prefix=CORTEX-A7-NOFPU
+; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -mattr=-vfp2d16sp,-vfp3,-vfp4,-neon,-fp16  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A7-NOFPU-FAST
 ; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -mattr=+vfp4,-neon | FileCheck %s --check-prefix=CORTEX-A7-FPUV4
 ; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -enable-sign-dependent-rounding-fp-math | FileCheck %s --check-prefix=DYN-ROUNDING
 ; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -mattr=+vfp4,-neon  -enable-unsafe-fp-math -frame-pointer=all -enable-no-infs-fp-math -enable-no-nans-fp-math -fp-contract=fast | FileCheck %s --check-prefix=CORTEX-A7-FPUV4-FAST
-; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -mattr=+vfp4,,+d16,-neon | FileCheck %s --check-prefix=CORTEX-A7-FPUV4
+; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -mattr=+vfp4,,-d32,-neon | FileCheck %s --check-prefix=CORTEX-A7-FPUV4
 ; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align -relocation-model=pic | FileCheck %s --check-prefix=RELOC-PIC
 ; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align -relocation-model=static | FileCheck %s --check-prefix=RELOC-OTHER
 ; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align -relocation-model=dynamic-no-pic | FileCheck %s --check-prefix=RELOC-OTHER
 ; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align | FileCheck %s --check-prefix=RELOC-OTHER
 ; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align | FileCheck %s --check-prefix=PCS-R9-USE
 ; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+reserve-r9,+strict-align | FileCheck %s --check-prefix=PCS-R9-RESERVE
 ; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align -relocation-model=ropi | FileCheck %s --check-prefix=RELOC-ROPI
 ; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -mattr=+strict-align -relocation-model=rwpi | FileCheck %s --check-prefix=RELOC-RWPI

 ; RUN: llc < %s -mtriple=thumb-none-linux-gnueabi -mattr=+strict-align -mcpu=cortex-m0 | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=thumbv6m-none-linux-gnueabi -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=thumb-none-linux-gnueabi -mcpu=cortex-m0 -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; ARMv5
 ; RUN: llc < %s -mtriple=armv5-none-linux-gnueabi -mcpu=arm1022e | FileCheck %s --check-prefix=NO-STRICT-ALIGN
 ; RUN: llc < %s -mtriple=armv5-none-linux-gnueabi -mcpu=arm1022e -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 
 ; ARMv8-R
-; RUN: llc < %s -mtriple=arm-none-none-eabi -mcpu=cortex-r52 -mattr=-vfp2,-fp16 | FileCheck %s --check-prefix=ARMv8R --check-prefix=ARMv8R-NOFPU
-; RUN: llc < %s -mtriple=arm-none-none-eabi -mcpu=cortex-r52 -mattr=-neon,+fp-only-sp,+d16 | FileCheck %s --check-prefix=ARMv8R --check-prefix=ARMv8R-SP
+; RUN: llc < %s -mtriple=arm-none-none-eabi -mcpu=cortex-r52 -mattr=-vfp2d16sp,-fp16 | FileCheck %s --check-prefix=ARMv8R --check-prefix=ARMv8R-NOFPU
+; RUN: llc < %s -mtriple=arm-none-none-eabi -mcpu=cortex-r52 -mattr=-neon,-fp64,-d32 | FileCheck %s --check-prefix=ARMv8R --check-prefix=ARMv8R-SP
 ; RUN: llc < %s -mtriple=arm-none-none-eabi -mcpu=cortex-r52 | FileCheck %s --check-prefix=ARMv8R --check-prefix=ARMv8R-NEON
 
 ; ARMv8-M
 ; RUN: llc < %s -mtriple=thumbv8-none-none-eabi -mcpu=cortex-m23 | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=thumbv8-none-none-eabi -mcpu=cortex-m33 | FileCheck %s --check-prefix=NO-STRICT-ALIGN
 ; RUN: llc < %s -mtriple=thumbv8-none-none-eabi -mcpu=cortex-m33 -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=thumbv8-none-none-eabi -mcpu=cortex-m35p | FileCheck %s --check-prefix=NO-STRICT-ALIGN
 ; RUN: llc < %s -mtriple=thumbv8-none-none-eabi -mcpu=cortex-m35p -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN

llvm/test/CodeGen/ARM/fast-isel-call.ll

 ; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
 ; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
 ; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
 ; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -mattr=+long-calls | FileCheck %s --check-prefix=ARM-LONG --check-prefix=ARM-LONG-MACHO
 ; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -mattr=+long-calls | FileCheck %s --check-prefix=ARM-LONG --check-prefix=ARM-LONG-ELF
 ; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -mattr=+long-calls | FileCheck %s --check-prefix=THUMB-LONG
-; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -mattr=-vfp2 | FileCheck %s --check-prefix=ARM-NOVFP
-; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -mattr=-vfp2 | FileCheck %s --check-prefix=ARM-NOVFP
-; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -mattr=-vfp2 | FileCheck %s --check-prefix=THUMB-NOVFP
+; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -mattr=-vfp2d16sp | FileCheck %s --check-prefix=ARM-NOVFP
+; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -mattr=-vfp2d16sp | FileCheck %s --check-prefix=ARM-NOVFP
+; RUN: llc -fast-isel-sink-local-values < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -mattr=-vfp2d16sp | FileCheck %s --check-prefix=THUMB-NOVFP
 
 ; Note that some of these tests assume that relocations are either
 ; movw/movt or constant pool loads. Different platforms will select
 ; different approaches.
 
 define i32 @t0(i1 zeroext %a) nounwind {
   %1 = zext i1 %a to i32
   ret i32 %1

llvm/test/CodeGen/ARM/float-helpers.s

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -asm-verbose=false -mattr=-vfp2 -mtriple=arm-eabi < %s | FileCheck %s -check-prefix=CHECK-SOFT
 ; RUN: llc -asm-verbose=false -mattr=-vfp2 -mtriple=arm-eabi -meabi=gnu < %s | FileCheck %s -check-prefix=CHECK-SOFT
 ; RUN: llc -asm-verbose=false -mattr=+vfp3 -mtriple=arm-eabi < %s | FileCheck %s -check-prefix=CHECK-SOFTFP
 ; RUN: llc -asm-verbose=false -mattr=+vfp3 -meabi=gnu -mtriple=arm-eabi < %s | FileCheck %s -check-prefix=CHECK-SOFTFP
 ; RUN: llc -asm-verbose=false -mattr=+vfp3 -float-abi=hard -mtriple=arm-eabi < %s | FileCheck %s -check-prefix=CHECK-HARDFP-SP -check-prefix=CHECK-HARDFP-DP
 ; RUN: llc -asm-verbose=false -mattr=+vfp3 -float-abi=hard -meabi=gnu -mtriple=arm-eabi < %s | FileCheck %s -check-prefix=CHECK-HARDFP-SP -check-prefix=CHECK-HARDFP-DP
-; RUN: llc -asm-verbose=false -mattr=+vfp3,+fp-only-sp -float-abi=hard -mtriple=arm-eabi < %s | FileCheck %s -check-prefix=CHECK-HARDFP-SP -check-prefix=CHECK-HARDFP-SPONLY
-; RUN: llc -asm-verbose=false -mattr=+vfp3,+fp-only-sp -float-abi=hard -mtriple=arm-eabi -meabi=gnu < %s | FileCheck %s -check-prefix=CHECK-HARDFP-SP -check-prefix=CHECK-HARDFP-SPONLY
+; RUN: llc -asm-verbose=false -mattr=+vfp3,-fp64 -float-abi=hard -mtriple=arm-eabi < %s | FileCheck %s -check-prefix=CHECK-HARDFP-SP -check-prefix=CHECK-HARDFP-SPONLY
+; RUN: llc -asm-verbose=false -mattr=+vfp3,-fp64 -float-abi=hard -mtriple=arm-eabi -meabi=gnu < %s | FileCheck %s -check-prefix=CHECK-HARDFP-SP -check-prefix=CHECK-HARDFP-SPONLY
 
 ; The Runtime ABI for the ARM Architecture IHI0043 section 4.1.2 The
 ; floating-point helper functions to always use the base AAPCS (soft-float)
 ; calling convention.
 
 ; In this test we cover the following configurations:
 ; CHECK-SOFT -mfloat-abi=soft
 ;     * expect no use of floating point instructions

llvm/test/CodeGen/ARM/fp-only-sp.ll

 ; RUN: llc -mtriple=thumbv7em-apple-macho -mcpu=cortex-m4 %s -o - -O0 | FileCheck %s
 ; RUN: llc -mtriple=thumbv7em-apple-macho -mcpu=cortex-m4 %s -o - | FileCheck %s
 
-; Note: vldr and vstr really do have 64-bit variants even with fp-only-sp
+; Note: vldr and vstr really do have 64-bit variants even with -fp64
 define void @test_load_store(double* %addr) {
 ; CHECK-LABEL: test_load_store:
 ; CHECK: vldr [[TMP:d[0-9]+]], [r0]
 ; CHECK: vstr [[TMP]], [r0]
   %val = load volatile double, double* %addr
   store volatile double %val, double* %addr
   ret void
 }

llvm/test/CodeGen/ARM/fp16-instructions.ll

 
 ; Test fast-isel
 ; RUN: llc < %s -mtriple=arm-none-eabi -mattr=+fullfp16 -O0 | FileCheck %s --check-prefixes=CHECK-SPILL-RELOAD
 ; RUN: llc < %s -mtriple=thumbv7-none-eabi -mattr=+fullfp16 -O0 | FileCheck %s --check-prefixes=CHECK-SPILL-RELOAD
 
 ; HARD:
 ; RUN: llc < %s -mtriple=arm-none-eabihf -mattr=+vfp3      | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-VFP3
 ; RUN: llc < %s -mtriple=arm-none-eabihf -mattr=+vfp4      | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FP16
-; RUN: llc < %s -mtriple=arm-none-eabihf -mattr=+fullfp16  | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FULLFP16
+; RUN: llc < %s -mtriple=arm-none-eabihf -mattr=+fullfp16,+fp64  | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FULLFP16
 
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mattr=+vfp3      | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-VFP3
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mattr=+vfp4      | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FP16
-; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mattr=+fullfp16  | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FULLFP16
+; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mattr=+fullfp16,fp64  | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FULLFP16
 
 ; FP-CONTRACT=FAST
 ; RUN: llc < %s -mtriple=arm-none-eabihf -mattr=+fullfp16 -fp-contract=fast | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FULLFP16-FAST
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mattr=+fullfp16 -fp-contract=fast | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FULLFP16-FAST
 
 ; TODO: we can't pass half-precision arguments as "half" types yet. We do
 ; that for the time being by passing "float %f.coerce" and the necessary
 ; bitconverts/truncates. But when we can pass half types, we do want to use

llvm/test/CodeGen/ARM/fp16-promote.ll

 ; RUN: llc -asm-verbose=false < %s -mattr=+vfp3,+fp16 | FileCheck -allow-deprecated-dag-overlap %s -check-prefix=CHECK-FP16  --check-prefix=CHECK-VFP -check-prefix=CHECK-ALL
 ; RUN: llc -asm-verbose=false < %s | FileCheck -allow-deprecated-dag-overlap %s -check-prefix=CHECK-LIBCALL --check-prefix=CHECK-VFP -check-prefix=CHECK-ALL --check-prefix=CHECK-LIBCALL-VFP
-; RUN: llc -asm-verbose=false < %s -mattr=-vfp2 | FileCheck -allow-deprecated-dag-overlap %s --check-prefix=CHECK-LIBCALL -check-prefix=CHECK-NOVFP -check-prefix=CHECK-ALL
+; RUN: llc -asm-verbose=false < %s -mattr=-vfp2d16sp | FileCheck -allow-deprecated-dag-overlap %s --check-prefix=CHECK-LIBCALL -check-prefix=CHECK-NOVFP -check-prefix=CHECK-ALL
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n32"
 target triple = "armv7---eabihf"
 
 ; CHECK-ALL-LABEL: test_fadd:
 ; CHECK-FP16: vcvtb.f32.f16
 ; CHECK-FP16: vcvtb.f32.f16
 ; CHECK-LIBCALL: bl __aeabi_h2f

llvm/test/CodeGen/ARM/fpconv.ll

 ; RUN: llc -mtriple=arm-eabi -mattr=+vfp2 %s -o - | FileCheck %s --check-prefix=CHECK-VFP
 ; RUN: llc -mtriple=arm-apple-darwin %s -o - | FileCheck %s
 ; RUN: llc -mtriple=armv8r-none-none-eabi %s -o - | FileCheck %s --check-prefix=CHECK-VFP
-; RUN: llc -mtriple=armv8r-none-none-eabi -mattr=+fp-only-sp %s -o - | FileCheck %s --check-prefix=CHECK-VFP-SP
+; RUN: llc -mtriple=armv8r-none-none-eabi -mattr=-fp64 %s -o - | FileCheck %s --check-prefix=CHECK-VFP-SP
 
 define float @f1(double %x) {
 ;CHECK-VFP-LABEL: f1:
 ;CHECK-VFP: vcvt.f32.f64
 ;CHECK-VFP-SP-LABEL: f1:
 ;CHECK-VFP-SP: bl __aeabi_d2f
 ;CHECK-LABEL: f1:
 ;CHECK: truncdfsf2

llvm/test/CodeGen/ARM/half.ll

 ; RUN: llc < %s -mtriple=thumbv7-apple-ios7.0 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-OLD
 ; RUN: llc < %s -mtriple=thumbv7s-apple-ios7.0 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-F16
 ; RUN: llc < %s -mtriple=thumbv8-apple-ios7.0 | FileCheck %s --check-prefix=CHECK  --check-prefix=CHECK-V8
 ; RUN: llc < %s -mtriple=armv8r-none-none-eabi | FileCheck %s --check-prefix=CHECK  --check-prefix=CHECK-V8
-; RUN: llc < %s -mtriple=armv8r-none-none-eabi -mattr=+fp-only-sp | FileCheck %s --check-prefix=CHECK  --check-prefix=CHECK-V8-SP
+; RUN: llc < %s -mtriple=armv8r-none-none-eabi -mattr=-fp64 | FileCheck %s --check-prefix=CHECK  --check-prefix=CHECK-V8-SP
 
 define void @test_load_store(half* %in, half* %out) {
 ; CHECK-LABEL: test_load_store:
 ; CHECK: ldrh [[TMP:r[0-9]+]], [r0]
 ; CHECK: strh [[TMP]], [r1]
   %val = load half, half* %in
   store half %val, half* %out
   ret void

llvm/test/CodeGen/ARM/inlineasm-X-allocation.ll

-; RUN: llc -mtriple=armv7-none-eabi -mattr=-neon,-vfp2 %s -o - | FileCheck %s  -check-prefixes=COMMON,NOVFP
+; RUN: llc -mtriple=armv7-none-eabi -mattr=-neon,-vfp2d16sp %s -o - | FileCheck %s  -check-prefixes=COMMON,NOVFP
 ; RUN: llc -mtriple=armv7-none-eabi -mattr=+neon %s -float-abi=hard -o - | FileCheck %s -check-prefixes=COMMON,VFP
 
 ; The intent here is to test "X", which says that any operand whatsoever is allowed.
 ; Using this mechanism, we want to test toggling allocating GPR or SPR registers
 ; depending on whether the float registers are available. Thus, the mnemonic is
 ; totally irrelevant here, which is why we use FOO and also comment it out using "@"
 ; to avoid assembler errors.
 

llvm/test/CodeGen/ARM/inlineasm-operand-implicit-cast.ll

 ; CHECK-NEXT: mov r5, r4
   %1 = call { double, double } asm "mov ${0:R}, ${2:Q}; mov ${1:R}, ${3:Q}", "=&{r2},=&{r4},0,1"(double %d1, double %d2)
   %asmresult1 = extractvalue { double, double } %1, 0
   %asmresult2 = extractvalue { double, double } %1, 1
   %add = fadd double %asmresult1, %asmresult2
   ret double %add
 }
 
-attributes #0 = { nounwind "target-features"="+d16,+vfp2,+vfp3,-fp-only-sp" "use-soft-float"="true" }
+attributes #0 = { nounwind "target-features"="-d32,+vfp2,+vfp3" "use-soft-float"="true" }
 
 
 ; Check support for returning a float in GPR with hard float ABI
 define float @zerobits_float_hard() #1 {
 ; CHECK-LABEL: zerobits_float_hard
 ; CHECK: mov r0, #0
 ; CHECK: vmov s0, r0
   %1 = tail call float asm "mov ${0}, #0", "=&r"()
; CHECK-NEXT: vmov d1, r4, r5
   %1 = call { double, double } asm "mov ${0:R}, ${2:Q}; mov ${1:R}, ${3:Q}", "=&{r2},=&{r4},0,1"(double %d1, double %d2)
   %asmresult1 = extractvalue { double, double } %1, 0
   %asmresult2 = extractvalue { double, double } %1, 1
   %partialres = insertvalue %struct.twodouble undef, double %asmresult1, 0
   %res = insertvalue %struct.twodouble %partialres, double %asmresult2, 1
   ret %struct.twodouble %res
 }
 
-attributes #1 = { nounwind "target-features"="+d16,+vfp2,+vfp3,-fp-only-sp" "use-soft-float"="false" }
+attributes #1 = { nounwind "target-features"="-d32,+vfp2,+vfp3" "use-soft-float"="false" }

llvm/test/CodeGen/ARM/no-fpu.ll

-; RUN: llc < %s -mtriple=armv7-none-gnueabi -mattr=-neon,-vfp2 | FileCheck --check-prefix=NONEON-NOVFP %s
+; RUN: llc < %s -mtriple=armv7-none-gnueabi -mattr=-neon,-vfp2d16sp | FileCheck --check-prefix=NONEON-NOVFP %s
 ; RUN: llc < %s -mtriple=armv7-none-gnueabi -mattr=-neon | FileCheck --check-prefix=NONEON %s
-; RUN: llc < %s -mtriple=armv7-none-gnueabi -mattr=-vfp2 | FileCheck --check-prefix=NOVFP %s
+; RUN: llc < %s -mtriple=armv7-none-gnueabi -mattr=-vfp2d16sp | FileCheck --check-prefix=NOVFP %s
 ; RUN: llc < %s -mtriple=armv7-none-gnueabi -mattr=-neon,+vfp2 | FileCheck --check-prefix=NONEON-VFP %s
 
 ; Check no NEON instructions are selected when feature is disabled.
 define void @neonop(i64* nocapture readonly %a, i64* nocapture %b) #0 {
   %1 = bitcast i64* %a to <2 x i64>*
   %wide.load = load <2 x i64>, <2 x i64>* %1, align 8
   ; NONEON-NOVFP-NOT: vld1.64
   ; NONEON-NOT: vld1.64

llvm/test/CodeGen/Thumb2/aapcs.ll

 ; RUN: llc < %s -mtriple=thumbv7-none-eabi   -mcpu=cortex-m4 -mattr=-vfp2             | FileCheck %s -check-prefix=CHECK -check-prefix=SOFT
-; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m4 -mattr=+vfp4,+fp-only-sp | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=SP
+; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m4 -mattr=+vfp4,-fp64 | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=SP
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-a8 -mattr=+vfp3             | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=DP
 
 define float @float_in_reg(float %a, float %b) {
 entry:
 ; CHECK-LABEL: float_in_reg:
 ; SOFT: mov r0, r1
 ; HARD: vmov.f32  s0, s1
 ; CHECK-NEXT: bx lr

llvm/test/CodeGen/Thumb2/float-intrinsics-double.ll

 ; RUN: llc < %s -mtriple=thumbv7-none-eabi   -mcpu=cortex-m3                    | FileCheck %s -check-prefix=CHECK -check-prefix=SOFT -check-prefix=NONE
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m4                    | FileCheck %s -check-prefix=CHECK -check-prefix=SOFT -check-prefix=SP
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m7                    | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=DP -check-prefix=VFP  -check-prefix=FP-ARMv8
-; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m7 -mattr=+fp-only-sp | FileCheck %s -check-prefix=CHECK -check-prefix=SOFT -check-prefix=SP
+; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m7 -mattr=-fp64 | FileCheck %s -check-prefix=CHECK -check-prefix=SOFT -check-prefix=SP
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-a7                    | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=DP -check-prefix=NEON -check-prefix=VFP4
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-a57                   | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=DP -check-prefix=NEON -check-prefix=FP-ARMv8
 
 declare double     @llvm.sqrt.f64(double %Val)
 define double @sqrt_d(double %a) {
 ; CHECK-LABEL: sqrt_d:
 ; SOFT: {{(bl|b)}} sqrt
 ; HARD: vsqrt.f64 d0, d0

llvm/test/CodeGen/Thumb2/float-intrinsics-float.ll

 ; RUN: llc < %s -mtriple=thumbv7-none-eabi   -mcpu=cortex-m3                    | FileCheck %s -check-prefix=CHECK -check-prefix=SOFT -check-prefix=NONE
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m4                    | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=SP -check-prefix=NO-VMLA
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m33                   | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=SP -check-prefix=NO-VMLA
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m7                    | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=DP -check-prefix=VFP  -check-prefix=FP-ARMv8  -check-prefix=VMLA
-; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m7 -mattr=+fp-only-sp | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=SP -check-prefix=FP-ARMv8 -check-prefix=VMLA
+; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-m7 -mattr=-fp64 | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=SP -check-prefix=FP-ARMv8 -check-prefix=VMLA
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-a7                    | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=DP -check-prefix=NEON -check-prefix=VFP4 -check-prefix=NO-VMLA
 ; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mcpu=cortex-a57                   | FileCheck %s -check-prefix=CHECK -check-prefix=HARD -check-prefix=DP -check-prefix=NEON -check-prefix=FP-ARMv8 -check-prefix=VMLA
 
 declare float     @llvm.sqrt.f32(float %Val)
 define float @sqrt_f(float %a) {
 ; CHECK-LABEL: sqrt_f:
 ; SOFT: bl sqrtf
 ; HARD: vsqrt.f32 s0, s0

llvm/test/CodeGen/Thumb2/t2sizereduction.mir

for.body:                                         ; preds = %for.body, %for.body.preheader
     %sum.07 = phi i32 [ %mul, %for.body ], [ 1, %for.body.preheader ]
     %mul = mul nsw i32 %lsr.iv1, %sum.07
     %lsr.iv.next = add i32 %lsr.iv, -1
     %lsr.iv.next2 = add i32 %lsr.iv1, 1
     %exitcond = icmp eq i32 %lsr.iv.next, 0
     br i1 %exitcond, label %for.cond.cleanup, label %for.body
   }
 
-  attributes #0 = { norecurse nounwind readnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="cortex-m7" "target-features"="+d16,+dsp,+fp-armv8,+fp-only-sp,+hwdiv,+strict-align,+thumb-mode,-crc,-dotprod,-hwdiv-arm,-ras" "unsafe-fp-math"="false" "use-soft-float"="false" }
+  attributes #0 = { norecurse nounwind readnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="cortex-m7" "target-features"="-d32,+dsp,+fp-armv8,-fp64,+hwdiv,+strict-align,+thumb-mode,-crc,-dotprod,-hwdiv-arm,-ras" "unsafe-fp-math"="false" "use-soft-float"="false" }
 
 ...
 ---
 name:            test
 tracksRegLiveness: true
 liveins:
   - { reg: '$r0', virtual-reg: '' }
   - { reg: '$r1', virtual-reg: '' }

llvm/test/MC/ARM/armv8.3a-js.s

 // RUN:     llvm-mc -triple   arm-none-none-eabi -show-encoding -mattr=+v8.3a,+fp-armv8 < %s 2>&1 | FileCheck %s --check-prefix=ARM
 // RUN:     llvm-mc -triple thumb-none-none-eabi -show-encoding -mattr=+v8.3a,+fp-armv8 < %s 2>&1 | FileCheck %s --check-prefix=THUMB
 // RUN: not llvm-mc -triple   arm-none-none-eabi -show-encoding -mattr=+v8.2a,+fp-armv8 < %s 2>&1 | FileCheck --check-prefix=REQ-V83 %s
-// RUN: not llvm-mc -triple   arm-none-none-eabi -show-encoding -mattr=+v8.3a,-fp-armv8 < %s 2>&1 | FileCheck --check-prefix=REQ-FP %s
+// RUN: not llvm-mc -triple   arm-none-none-eabi -show-encoding -mattr=+v8.3a,-fp-armv8d16fp < %s 2>&1 | FileCheck --check-prefix=REQ-FP %s
 
   vjcvt.s32.f64 s1, d2
 // ARM: vjcvt.s32.f64 s1, d2    @ encoding: [0xc2,0x0b,0xf9,0xee]
 // THUMB: vjcvt.s32.f64 s1, d2    @ encoding: [0xf9,0xee,0xc2,0x0b]
 // REQ-V83: error: instruction requires: armv8.3a
 // REQ-FP: error: instruction requires: FPARMv8
 
   vjcvt.s32.f64 s17, d18
 // ARM: vjcvt.s32.f64 s17, d18    @ encoding: [0xe2,0x8b,0xf9,0xee]
 // THUMB: vjcvt.s32.f64 s17, d18    @ encoding: [0xf9,0xee,0xe2,0x8b]
 // REQ-V83: error: instruction requires: armv8.3a
-// REQ-FP: error: instruction requires: FPARMv8
+// REQ-FP: error: invalid instruction

llvm/test/MC/ARM/d16.s

-@ RUN:     llvm-mc < %s -triple thumbv7-unknown-unknown -show-encoding -mattr=+vfp4,-d16 2>&1 | FileCheck %s --check-prefix=D32
-@ RUN: not llvm-mc < %s -triple thumbv7-unknown-unknown -show-encoding -mattr=+vfp4,+d16 2>&1 | FileCheck %s --check-prefix=D16
+@ RUN:     llvm-mc < %s -triple thumbv7-unknown-unknown -show-encoding -mattr=+vfp4,+d32 2>&1 | FileCheck %s --check-prefix=D32
+@ RUN: not llvm-mc < %s -triple thumbv7-unknown-unknown -show-encoding -mattr=+vfp4,-d32 2>&1 | FileCheck %s --check-prefix=D16
 
 @ D32-NOT: error:
 
 @ D16: error: invalid instruction, any one of the following would fix this:
 @ D16-NEXT: vadd.f64 d1, d2, d16
 @ D16: note: operand must be a register in range [d0, d15]
 @ D16: note: too many operands for instruction
 vadd.f64 d1, d2, d16

llvm/test/MC/ARM/invalid-neon-v8.s

-@ RUN: not llvm-mc -triple armv8 -mattr=-fp-armv8 -show-encoding < %s 2>&1 | FileCheck %s
+@ RUN: not llvm-mc -triple armv8 -mattr=-fp-armv8d16sp -show-encoding < %s 2>&1 | FileCheck %s
 
 vmaxnm.f32 s4, d5, q1
 @ CHECK: error: invalid instruction
 vmaxnm.f64.f64 s4, d5, q1
 @ CHECK: error: invalid instruction
 vmaxnmge.f64.f64 s4, d5, q1
 @ CHECK: error: instruction 'vmaxnm' is not predicable, but condition code specified
 

llvm/test/MC/ARM/single-precision-fp.s

-@ RUN: not llvm-mc < %s -triple thumbv8-unknown-unknown -show-encoding -mattr=+fp-only-sp,-neon 2> %t > %t2
+@ RUN: not llvm-mc < %s -triple thumbv8-unknown-unknown -show-encoding -mattr=-fp64,-neon 2> %t > %t2
 @ RUN:     FileCheck %s < %t --check-prefix=CHECK-ERRORS
 @ RUN:     FileCheck %s < %t2
 
         vadd.f64 d0, d1, d2
         vsub.f64 d2, d3, d4
         vdiv.f64 d4, d5, d6
         vmul.f64 d6, d7, d8
         vnmul.f64 d8, d9, d10

llvm/test/MC/ARM/vldm-vstm-diags.s

 @ RUN: not llvm-mc -triple armv7-eabi -filetype asm -o /dev/null             %s 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-D32
-@ RUN: not llvm-mc -triple armv7-eabi -filetype asm -o /dev/null -mattr=+d16 %s 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-D16
+@ RUN: not llvm-mc -triple armv7-eabi -filetype asm -o /dev/null -mattr=-d32 %s 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-D16
 
   // First operand must be a GPR
   vldm s0, {s1, s2}
 // CHECK: error: operand must be a register in range [r0, r15]
 // CHECK-NEXT: vldm s0, {s1, s2}
 
   vstm s0, {s1, s2}
 // CHECK: error: operand must be a register in range [r0, r15]

llvm/test/Transforms/Inline/ARM/inline-fp.ll

 ; RUN: opt -S -inline -mtriple=arm-eabi -pass-remarks=.* -pass-remarks-missed=.* < %s 2>&1 | FileCheck %s -check-prefix=NOFP
 ; RUN: opt -S -inline -mtriple=arm-eabi -mattr=+vfp2 -pass-remarks=.* -pass-remarks-missed=.* < %s 2>&1 | FileCheck %s -check-prefix=FULLFP
-; RUN: opt -S -inline -mtriple=arm-eabi -mattr=+vfp2,+fp-only-sp -pass-remarks=.* -pass-remarks-missed=.* < %s 2>&1 | FileCheck %s -check-prefix=SINGLEFP
+; RUN: opt -S -inline -mtriple=arm-eabi -mattr=+vfp2,-fp64 -pass-remarks=.* -pass-remarks-missed=.* < %s 2>&1 | FileCheck %s -check-prefix=SINGLEFP
 ; Make sure that soft float implementations are calculated as being more expensive
 ; to the inliner.
 
 ; NOFP-DAG: single not inlined into test_single because too costly to inline (cost=125, threshold=75)
 ; NOFP-DAG: single not inlined into test_single because too costly to inline (cost=125, threshold=75)
 ; NOFP-DAG: single_cheap inlined into test_single_cheap with (cost=-15, threshold=75)
 ; NOFP-DAG: single_cheap inlined into test_single_cheap with (cost=-15015, threshold=75)
 ; NOFP-DAG: double not inlined into test_double because too costly to inline (cost=125, threshold=75)

llvm/test/Transforms/LoopUnroll/runtime-epilog-debuginfo.ll

lee1.exit:                                        ; preds = %lee1.exit.loopexit, %entry
   %mul.i = mul nsw i32 %add.i4, %sub.i, !dbg !50
   %add = add nsw i32 %t.0.lcssa.i, %mul.i, !dbg !51
   ret i32 %add, !dbg !52
 }
 
 ; Function Attrs: nounwind readnone
 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
 
-attributes #0 = { nounwind readnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="arm7tdmi" "target-features"="+neon,+strict-align,+vfp3,-crypto,-d16,-fp-armv8,-fp-only-sp,-fp16,-vfp4" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #0 = { nounwind readnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="arm7tdmi" "target-features"="+neon,+strict-align,+vfp3,-crypto,-fp-armv8,-fp16,-vfp4" "unsafe-fp-math"="false" "use-soft-float"="false" }
 attributes #1 = { nounwind readnone }
 
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!3, !4, !5, !6}
 !llvm.ident = !{!7}
 
 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "Snapdragon LLVM ARM Compiler 4.0.5 (based on llvm.org 4.0+)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
 !1 = !DIFile(filename: "t.c", directory: "/prj/llvm-arm/scratch1/zhaoshiz/bugs/debug-symbol")