Add driver support for Qualcomm Kryo cpu.

[mcrosier]

Summary

Add support for Kryo.

[mcrosier]

Format the tests to match those already in tree.

Don't add support for zcz and zcm just yet; this needs additional testing.

[rengolin]

I'm assuming you also have the LLVM counterpart?

[t.p.northover]

Looks reasonable to me.

Tim.

[mcrosier]

In D17124#350130, @rengolin wrote:

I'm assuming you also have the LLVM counterpart?

Yes, but I haven't made them public just yet.

http://reviews.llvm.org/D17122
http://reviews.llvm.org/D17119

[mcrosier]

Committed r260555.

[rengolin]

In D17124#350229, @mcrosier wrote:

Committed r260555.

It would have been better to commit the LLVM parts first. Now, there will be a range where kyro will be accepted by Clang but broken when it gets to setup the target.

--renato

lib/Basic/Targets.cpp

                         .Cases("cortex-a53", "cortex-a57", "cortex-a72",
                                "cortex-a35", "exynos-m1", true)
                         .Case("cyclone", true)
+                        .Case("kryo", true)
                         .Default(false);
     return CPUKnown;
   }

lib/Driver/Tools.cpp

   std::pair<StringRef, StringRef> Split = Mcpu.split("+");
   CPU = Split.first;
   if (CPU == "cyclone" || CPU == "cortex-a53" || CPU == "cortex-a57" ||
-      CPU == "cortex-a72" || CPU == "cortex-a35" || CPU == "exynos-m1") {
+      CPU == "cortex-a72" || CPU == "cortex-a35" || CPU == "exynos-m1" ||
+      CPU == "kryo") {
     Features.push_back("+neon");
     Features.push_back("+crc");
     Features.push_back("+crypto");

   // Handle CPU name is 'native'.
   if (MtuneLowerCase == "native")
     MtuneLowerCase = llvm::sys::getHostCPUName();
-  if (MtuneLowerCase == "cyclone") {
+  if (MtuneLowerCase == "cyclone" || MtuneLowerCase == "kryo") {
     Features.push_back("+zcm");
     Features.push_back("+zcz");
   }

test/Driver/kryo-cpu.c

+// RUN: %clang -target aarch64-linux-gnu -mcpu=kryo -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUKRYO %s
+// CHECK-CPUKRYO: "-target-cpu" "kryo"
+
+// RUN: %clang -target aarch64-linux-gnu -mcpu=kryo -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-ZCZ %s
+// CHECK-ZCZ:  "-target-feature" "+zcz"
+
+// RUN: %clang -target aarch64-linux-gnu -mcpu=kryo -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-ZCM %s
+// CHECK-ZCM:  "-target-feature" "+zcm"