[ARM] Use DefaultAttrsIntrinsics

[nikic]

Summary

Use DefaultAttrsIntrinsics for most ARM intrinsics. This adds the WillReturn, NoSync, NoFree and NoCallback attributes and is needed to avoid regressions in the future.

I've switched to DefaultAttrIntrinsics for everything doing arithmetic and load/store. I've left some TODOs in cases where all DefaultsAttrs are not correct (e.g. ldrex etc are clearly not nosync) or it wasn't entirely obvious to me (e.g. stuff interacting with a coprocessor).

[dmgreen]

Thanks for doing this. I have left some comments but as far as I understand the changes LGTM.

llvm/include/llvm/IR/IntrinsicsARM.td

318

Given [WillReturn, NoSync, NoFree and NoCallback], these FP intrinsics sounds OK.

500

This will continue to work? It looks like the default flags are added through a different means.

1398

CDE should be fine - there are limits to what a valid CDE instruction can do which should mean the default flags are all OK.

[nikic]

Use default attrs for VFP and CDE as well.

[nikic]

llvm/include/llvm/IR/IntrinsicsARM.td

500

Yeah, this should still work.

[dmgreen]

Thanks. LGTM

llvm/include/llvm/IR/IntrinsicsARM.td

 
 // A space-consuming intrinsic primarily for testing ARMConstantIslands. The
 // first argument is the number of bytes this "instruction" takes up, the second
 // and return value are essentially chains, used to force ordering during ISel.
 def int_arm_space : Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [ImmArg<ArgIndex<0>>]>;
 
 // 16-bit multiplications
 def int_arm_smulbb : ClangBuiltin<"__builtin_arm_smulbb">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_smulbt : ClangBuiltin<"__builtin_arm_smulbt">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_smultb : ClangBuiltin<"__builtin_arm_smultb">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_smultt : ClangBuiltin<"__builtin_arm_smultt">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_smulwb : ClangBuiltin<"__builtin_arm_smulwb">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_smulwt : ClangBuiltin<"__builtin_arm_smulwt">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 
 //===----------------------------------------------------------------------===//
 // Saturating Arithmetic
 
 def int_arm_qadd : ClangBuiltin<"__builtin_arm_qadd">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
                           [Commutative, IntrNoMem]>;
 def int_arm_qsub : ClangBuiltin<"__builtin_arm_qsub">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_ssat : ClangBuiltin<"__builtin_arm_ssat">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_usat : ClangBuiltin<"__builtin_arm_usat">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 
 // Accumulating multiplications
 def int_arm_smlabb : ClangBuiltin<"__builtin_arm_smlabb">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i32_ty],
                           [IntrNoMem]>;
 def int_arm_smlabt : ClangBuiltin<"__builtin_arm_smlabt">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i32_ty],
                           [IntrNoMem]>;
 def int_arm_smlatb : ClangBuiltin<"__builtin_arm_smlatb">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i32_ty],
                           [IntrNoMem]>;
 def int_arm_smlatt : ClangBuiltin<"__builtin_arm_smlatt">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i32_ty],
                           [IntrNoMem]>;
 def int_arm_smlawb : ClangBuiltin<"__builtin_arm_smlawb">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i32_ty],
                           [IntrNoMem]>;
 def int_arm_smlawt : ClangBuiltin<"__builtin_arm_smlawt">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i32_ty],
                           [IntrNoMem]>;
 
 // Parallel 16-bit saturation
 def int_arm_ssat16 : ClangBuiltin<"__builtin_arm_ssat16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_usat16 : ClangBuiltin<"__builtin_arm_usat16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 
 // Packing and unpacking
 def int_arm_sxtab16 : ClangBuiltin<"__builtin_arm_sxtab16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_sxtb16 : ClangBuiltin<"__builtin_arm_sxtb16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty], [IntrNoMem]>;
 def int_arm_uxtab16 : ClangBuiltin<"__builtin_arm_uxtab16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_uxtb16 : ClangBuiltin<"__builtin_arm_uxtb16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty], [IntrNoMem]>;
 
 // Parallel selection, reads the GE flags.
 def int_arm_sel : ClangBuiltin<"__builtin_arm_sel">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrReadMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrReadMem]>;
 
 // Parallel 8-bit addition and subtraction
 def int_arm_qadd8  : ClangBuiltin<"__builtin_arm_qadd8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_qsub8  : ClangBuiltin<"__builtin_arm_qsub8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 // Writes to the GE bits.
 def int_arm_sadd8  : ClangBuiltin<"__builtin_arm_sadd8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 def int_arm_shadd8  : ClangBuiltin<"__builtin_arm_shadd8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_shsub8  : ClangBuiltin<"__builtin_arm_shsub8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 // Writes to the GE bits.
 def int_arm_ssub8  : ClangBuiltin<"__builtin_arm_ssub8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 // Writes to the GE bits.
 def int_arm_uadd8  : ClangBuiltin<"__builtin_arm_uadd8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 def int_arm_uhadd8  : ClangBuiltin<"__builtin_arm_uhadd8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_uhsub8  : ClangBuiltin<"__builtin_arm_uhsub8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_uqadd8  : ClangBuiltin<"__builtin_arm_uqadd8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_uqsub8  : ClangBuiltin<"__builtin_arm_uqsub8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 // Writes to the GE bits.
 def int_arm_usub8  : ClangBuiltin<"__builtin_arm_usub8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 
 // Sum of 8-bit absolute differences
 def int_arm_usad8  : ClangBuiltin<"__builtin_arm_usad8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_usada8  : ClangBuiltin<"__builtin_arm_usada8">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i32_ty],
                           [IntrNoMem]>;
 
 // Parallel 16-bit addition and subtraction
 def int_arm_qadd16  : ClangBuiltin<"__builtin_arm_qadd16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_qasx  : ClangBuiltin<"__builtin_arm_qasx">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_qsax  : ClangBuiltin<"__builtin_arm_qsax">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_qsub16  : ClangBuiltin<"__builtin_arm_qsub16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 // Writes to the GE bits.
 def int_arm_sadd16  : ClangBuiltin<"__builtin_arm_sadd16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 // Writes to the GE bits.
 def int_arm_sasx  : ClangBuiltin<"__builtin_arm_sasx">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 def int_arm_shadd16  : ClangBuiltin<"__builtin_arm_shadd16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_shasx  : ClangBuiltin<"__builtin_arm_shasx">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_shsax  : ClangBuiltin<"__builtin_arm_shsax">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_shsub16  : ClangBuiltin<"__builtin_arm_shsub16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 // Writes to the GE bits.
 def int_arm_ssax  : ClangBuiltin<"__builtin_arm_ssax">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 // Writes to the GE bits.
 def int_arm_ssub16  : ClangBuiltin<"__builtin_arm_ssub16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 // Writes to the GE bits.
 def int_arm_uadd16  : ClangBuiltin<"__builtin_arm_uadd16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 // Writes to the GE bits.
 def int_arm_uasx  : ClangBuiltin<"__builtin_arm_uasx">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 def int_arm_uhadd16  : ClangBuiltin<"__builtin_arm_uhadd16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_uhasx  : ClangBuiltin<"__builtin_arm_uhasx">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_uhsax  : ClangBuiltin<"__builtin_arm_uhsax">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_uhsub16  : ClangBuiltin<"__builtin_arm_uhsub16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_uqadd16  : ClangBuiltin<"__builtin_arm_uqadd16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_uqasx  : ClangBuiltin<"__builtin_arm_uqasx">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_uqsax  : ClangBuiltin<"__builtin_arm_uqsax">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_uqsub16  : ClangBuiltin<"__builtin_arm_uqsub16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 // Writes to the GE bits.
 def int_arm_usax  : ClangBuiltin<"__builtin_arm_usax">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 // Writes to the GE bits.
 def int_arm_usub16  : ClangBuiltin<"__builtin_arm_usub16">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], []>;
 
 // Parallel 16-bit multiplication
 def int_arm_smlad : ClangBuiltin<"__builtin_arm_smlad">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i32_ty],
                           [IntrNoMem]>;
 def int_arm_smladx : ClangBuiltin<"__builtin_arm_smladx">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i32_ty],
                           [IntrNoMem]>;
 def int_arm_smlald : ClangBuiltin<"__builtin_arm_smlald">,
-    Intrinsic<[llvm_i64_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i64_ty],
+    DefaultAttrsIntrinsic<[llvm_i64_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i64_ty],
                           [IntrNoMem]>;
 def int_arm_smlaldx : ClangBuiltin<"__builtin_arm_smlaldx">,
-    Intrinsic<[llvm_i64_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i64_ty],
+    DefaultAttrsIntrinsic<[llvm_i64_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i64_ty],
                           [IntrNoMem]>;
 def int_arm_smlsd : ClangBuiltin<"__builtin_arm_smlsd">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i32_ty],
                           [IntrNoMem]>;
 def int_arm_smlsdx : ClangBuiltin<"__builtin_arm_smlsdx">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i32_ty],
                           [IntrNoMem]>;
 def int_arm_smlsld : ClangBuiltin<"__builtin_arm_smlsld">,
-    Intrinsic<[llvm_i64_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i64_ty],
+    DefaultAttrsIntrinsic<[llvm_i64_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i64_ty],
                           [IntrNoMem]>;
 def int_arm_smlsldx : ClangBuiltin<"__builtin_arm_smlsldx">,
-    Intrinsic<[llvm_i64_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i64_ty],
+    DefaultAttrsIntrinsic<[llvm_i64_ty], [llvm_i32_ty, llvm_i32_ty,
+                           llvm_i64_ty],
                           [IntrNoMem]>;
 def int_arm_smuad : ClangBuiltin<"__builtin_arm_smuad">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_smuadx : ClangBuiltin<"__builtin_arm_smuadx">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_smusd : ClangBuiltin<"__builtin_arm_smusd">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 def int_arm_smusdx : ClangBuiltin<"__builtin_arm_smusdx">,
-    Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+    DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 
 
 //===----------------------------------------------------------------------===//
 // Load, Store and Clear exclusive
 
+// TODO: Add applicable default attributes.
 def int_arm_ldrex : Intrinsic<[llvm_i32_ty], [llvm_anyptr_ty]>;
 def int_arm_strex : Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_anyptr_ty]>;
 
 def int_arm_ldaex : Intrinsic<[llvm_i32_ty], [llvm_anyptr_ty]>;
 def int_arm_stlex : Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_anyptr_ty]>;
 
 def int_arm_clrex : Intrinsic<[]>;
 
 def int_arm_strexd : Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty,
     llvm_ptr_ty]>;
 def int_arm_ldrexd : Intrinsic<[llvm_i32_ty, llvm_i32_ty], [llvm_ptr_ty]>;
 
 def int_arm_stlexd : Intrinsic<[llvm_i32_ty],
                                [llvm_i32_ty, llvm_i32_ty, llvm_ptr_ty]>;
 def int_arm_ldaexd : Intrinsic<[llvm_i32_ty, llvm_i32_ty], [llvm_ptr_ty]>;
 
 //===----------------------------------------------------------------------===//
 // Data barrier instructions
+
+// TODO: Add applicable default attributes.
 def int_arm_dmb : ClangBuiltin<"__builtin_arm_dmb">, MSBuiltin<"__dmb">,
                   Intrinsic<[], [llvm_i32_ty]>;
 def int_arm_dsb : ClangBuiltin<"__builtin_arm_dsb">, MSBuiltin<"__dsb">,
                   Intrinsic<[], [llvm_i32_ty]>;
 def int_arm_isb : ClangBuiltin<"__builtin_arm_isb">, MSBuiltin<"__isb">,
                   Intrinsic<[], [llvm_i32_ty]>;
 
 //===----------------------------------------------------------------------===//
 // VFP
 
+// TODO: Add applicable default attributes.
 def int_arm_get_fpscr : ClangBuiltin<"__builtin_arm_get_fpscr">,
                        Intrinsic<[llvm_i32_ty], [], []>;
 def int_arm_set_fpscr : ClangBuiltin<"__builtin_arm_set_fpscr">,
                        Intrinsic<[], [llvm_i32_ty], []>;
 def int_arm_vcvtr     : Intrinsic<[llvm_float_ty], [llvm_anyfloat_ty],
                                   [IntrNoMem]>;
 def int_arm_vcvtru    : Intrinsic<[llvm_float_ty], [llvm_anyfloat_ty],
                                   [IntrNoMem]>;
 
 //===----------------------------------------------------------------------===//
 // Coprocessor
 
+// TODO: Add applicable default attributes.
 def int_arm_ldc : ClangBuiltin<"__builtin_arm_ldc">,
    Intrinsic<[], [llvm_i32_ty, llvm_i32_ty, llvm_ptr_ty], [ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<1>>]>;
 def int_arm_ldcl : ClangBuiltin<"__builtin_arm_ldcl">,
    Intrinsic<[], [llvm_i32_ty, llvm_i32_ty, llvm_ptr_ty], [ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<1>>]>;
 def int_arm_ldc2 : ClangBuiltin<"__builtin_arm_ldc2">,
    Intrinsic<[], [llvm_i32_ty, llvm_i32_ty, llvm_ptr_ty], [ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<1>>]>;
 def int_arm_ldc2l : ClangBuiltin<"__builtin_arm_ldc2l">,
    Intrinsic<[], [llvm_i32_ty, llvm_i32_ty, llvm_ptr_ty], [ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<1>>]>;

 def int_arm_mrrc : Intrinsic<[llvm_i32_ty, llvm_i32_ty], [llvm_i32_ty,
                               llvm_i32_ty, llvm_i32_ty], [ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<1>>, ImmArg<ArgIndex<2>>]>;
 def int_arm_mrrc2 : Intrinsic<[llvm_i32_ty, llvm_i32_ty], [llvm_i32_ty,
                                llvm_i32_ty, llvm_i32_ty], [ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<1>>, ImmArg<ArgIndex<2>>]>;
 
 //===----------------------------------------------------------------------===//
 // CRC32
 
-def int_arm_crc32b  : Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
-    [IntrNoMem]>;
-def int_arm_crc32cb : Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
-    [IntrNoMem]>;
-def int_arm_crc32h  : Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
-    [IntrNoMem]>;
-def int_arm_crc32ch : Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
-    [IntrNoMem]>;
-def int_arm_crc32w  : Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
-    [IntrNoMem]>;
-def int_arm_crc32cw : Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
-    [IntrNoMem]>;
+def int_arm_crc32b : DefaultAttrsIntrinsic<
+    [llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+def int_arm_crc32cb : DefaultAttrsIntrinsic<
+    [llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+def int_arm_crc32h  : DefaultAttrsIntrinsic<
+    [llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+def int_arm_crc32ch : DefaultAttrsIntrinsic<
+    [llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+def int_arm_crc32w  : DefaultAttrsIntrinsic<
+    [llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
+def int_arm_crc32cw : DefaultAttrsIntrinsic<
+    [llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
 
 //===----------------------------------------------------------------------===//
 // CMSE
 
+// TODO: Add applicable default attributes.
 def int_arm_cmse_tt : ClangBuiltin<"__builtin_arm_cmse_TT">,
     Intrinsic<[llvm_i32_ty], [llvm_ptr_ty], [IntrNoMem]>;
 def int_arm_cmse_ttt : ClangBuiltin<"__builtin_arm_cmse_TTT">,
     Intrinsic<[llvm_i32_ty], [llvm_ptr_ty], [IntrNoMem]>;
 def int_arm_cmse_tta : ClangBuiltin<"__builtin_arm_cmse_TTA">,
     Intrinsic<[llvm_i32_ty], [llvm_ptr_ty], [IntrNoMem]>;
 def int_arm_cmse_ttat : ClangBuiltin<"__builtin_arm_cmse_TTAT">,
     Intrinsic<[llvm_i32_ty], [llvm_ptr_ty], [IntrNoMem]>;
 
 //===----------------------------------------------------------------------===//
 // HINT
 
+// TODO: Add applicable default attributes.
 def int_arm_hint : Intrinsic<[], [llvm_i32_ty]>;
 def int_arm_dbg : Intrinsic<[], [llvm_i32_ty]>;
 
 //===----------------------------------------------------------------------===//
 // UND (reserved undefined sequence)
 
+// TODO: Add applicable default attributes.
 def int_arm_undefined : Intrinsic<[], [llvm_i32_ty]>;
 
 //===----------------------------------------------------------------------===//
 // Advanced SIMD (NEON)
 
 // The following classes do not correspond directly to GCC builtins.
 class Neon_1Arg_Intrinsic
-  : Intrinsic<[llvm_anyvector_ty], [LLVMMatchType<0>], [IntrNoMem]>;
+  : DefaultAttrsIntrinsic<[llvm_anyvector_ty], [LLVMMatchType<0>], [IntrNoMem]>;
 class Neon_1Arg_Narrow_Intrinsic
-  : Intrinsic<[llvm_anyvector_ty], [LLVMExtendedType<0>], [IntrNoMem]>;
-class Neon_2Arg_Intrinsic
-  : Intrinsic<[llvm_anyvector_ty], [LLVMMatchType<0>, LLVMMatchType<0>],
+  : DefaultAttrsIntrinsic<[llvm_anyvector_ty], [LLVMExtendedType<0>],
                           [IntrNoMem]>;
+class Neon_2Arg_Intrinsic
+  : DefaultAttrsIntrinsic<[llvm_anyvector_ty],
+                          [LLVMMatchType<0>, LLVMMatchType<0>], [IntrNoMem]>;
 class Neon_2Arg_Narrow_Intrinsic
-  : Intrinsic<[llvm_anyvector_ty], [LLVMExtendedType<0>, LLVMExtendedType<0>],
+  : DefaultAttrsIntrinsic<[llvm_anyvector_ty],
+                          [LLVMExtendedType<0>, LLVMExtendedType<0>],
                           [IntrNoMem]>;
 class Neon_2Arg_Long_Intrinsic
-  : Intrinsic<[llvm_anyvector_ty], [LLVMTruncatedType<0>, LLVMTruncatedType<0>],
+  : DefaultAttrsIntrinsic<[llvm_anyvector_ty],
+                          [LLVMTruncatedType<0>, LLVMTruncatedType<0>],
                           [IntrNoMem]>;
 class Neon_3Arg_Intrinsic
-  : Intrinsic<[llvm_anyvector_ty],
-              [LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>],
+  : DefaultAttrsIntrinsic<[llvm_anyvector_ty],
+                          [LLVMMatchType<0>, LLVMMatchType<0>,
+                           LLVMMatchType<0>],
                           [IntrNoMem]>;
 class Neon_3Arg_Long_Intrinsic
-  : Intrinsic<[llvm_anyvector_ty],
-              [LLVMMatchType<0>, LLVMTruncatedType<0>, LLVMTruncatedType<0>],
+  : DefaultAttrsIntrinsic<[llvm_anyvector_ty],
+                          [LLVMMatchType<0>, LLVMTruncatedType<0>,
+                           LLVMTruncatedType<0>],
                           [IntrNoMem]>;
 
 class Neon_1FloatArg_Intrinsic
-  : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>], [IntrNoMem]>;
+  : DefaultAttrsIntrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>], [IntrNoMem]>;
 
 class Neon_CvtFxToFP_Intrinsic
-  : Intrinsic<[llvm_anyfloat_ty], [llvm_anyint_ty, llvm_i32_ty], [IntrNoMem]>;
+  : DefaultAttrsIntrinsic<[llvm_anyfloat_ty], [llvm_anyint_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 class Neon_CvtFPToFx_Intrinsic
-  : Intrinsic<[llvm_anyint_ty], [llvm_anyfloat_ty, llvm_i32_ty], [IntrNoMem]>;
+  : DefaultAttrsIntrinsic<[llvm_anyint_ty], [llvm_anyfloat_ty, llvm_i32_ty],
+                          [IntrNoMem]>;
 class Neon_CvtFPtoInt_1Arg_Intrinsic
-  : Intrinsic<[llvm_anyvector_ty], [llvm_anyvector_ty], [IntrNoMem]>;
+  : DefaultAttrsIntrinsic<[llvm_anyvector_ty], [llvm_anyvector_ty],
+                          [IntrNoMem]>;
 
 class Neon_Compare_Intrinsic
-  : Intrinsic<[llvm_anyvector_ty], [llvm_anyvector_ty, LLVMMatchType<1>],
-              [IntrNoMem]>;
+  : DefaultAttrsIntrinsic<[llvm_anyvector_ty],
+                          [llvm_anyvector_ty, LLVMMatchType<1>], [IntrNoMem]>;
 
 // The table operands for VTBL and VTBX consist of 1 to 4 v8i8 vectors.
 // Besides the table, VTBL has one other v8i8 argument and VTBX has two.
 // Overall, the classes range from 2 to 6 v8i8 arguments.
 class Neon_Tbl2Arg_Intrinsic
-  : Intrinsic<[llvm_v8i8_ty],
+  : DefaultAttrsIntrinsic<[llvm_v8i8_ty],
                           [llvm_v8i8_ty, llvm_v8i8_ty], [IntrNoMem]>;
 class Neon_Tbl3Arg_Intrinsic
-  : Intrinsic<[llvm_v8i8_ty],
-              [llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty], [IntrNoMem]>;
+  : DefaultAttrsIntrinsic<[llvm_v8i8_ty],
+                          [llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty],
+                          [IntrNoMem]>;
 class Neon_Tbl4Arg_Intrinsic
-  : Intrinsic<[llvm_v8i8_ty],
-              [llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty],
+  : DefaultAttrsIntrinsic<[llvm_v8i8_ty],
+                          [llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty,
+                           llvm_v8i8_ty],
                           [IntrNoMem]>;
 class Neon_Tbl5Arg_Intrinsic
-  : Intrinsic<[llvm_v8i8_ty],
-              [llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty,
-               llvm_v8i8_ty], [IntrNoMem]>;
+  : DefaultAttrsIntrinsic<[llvm_v8i8_ty],
+                          [llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty,
+                           llvm_v8i8_ty, llvm_v8i8_ty],
+                          [IntrNoMem]>;
 class Neon_Tbl6Arg_Intrinsic
-  : Intrinsic<[llvm_v8i8_ty],
-              [llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty,
-               llvm_v8i8_ty, llvm_v8i8_ty], [IntrNoMem]>;
+  : DefaultAttrsIntrinsic<[llvm_v8i8_ty],
+                          [llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty,
+                           llvm_v8i8_ty, llvm_v8i8_ty, llvm_v8i8_ty],
+                          [IntrNoMem]>;
 
 // Arithmetic ops
 
 let IntrProperties = [IntrNoMem, Commutative] in {
 
   // Vector Add.
   def int_arm_neon_vhadds : Neon_2Arg_Intrinsic;
   def int_arm_neon_vhaddu : Neon_2Arg_Intrinsic;
   def int_arm_neon_vrhadds : Neon_2Arg_Intrinsic;
   def int_arm_neon_vrhaddu : Neon_2Arg_Intrinsic;
   def int_arm_neon_vraddhn : Neon_2Arg_Narrow_Intrinsic;
 

 
 // Vector Pairwise Add.
 def int_arm_neon_vpadd : Neon_2Arg_Intrinsic;
 
 // Vector Pairwise Add Long.
 // Note: This is different than the other "long" NEON intrinsics because
 // the result vector has half as many elements as the source vector.
 // The source and destination vector types must be specified separately.
-def int_arm_neon_vpaddls : Intrinsic<[llvm_anyvector_ty], [llvm_anyvector_ty],
-                                     [IntrNoMem]>;
-def int_arm_neon_vpaddlu : Intrinsic<[llvm_anyvector_ty], [llvm_anyvector_ty],
-                                     [IntrNoMem]>;
+def int_arm_neon_vpaddls : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty], [llvm_anyvector_ty], [IntrNoMem]>;
+def int_arm_neon_vpaddlu : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty], [llvm_anyvector_ty], [IntrNoMem]>;
 
 // Vector Pairwise Add and Accumulate Long.
 // Note: This is similar to vpaddl but the destination vector also appears
 // as the first argument.
-def int_arm_neon_vpadals : Intrinsic<[llvm_anyvector_ty],
-                                     [LLVMMatchType<0>, llvm_anyvector_ty],
-                                     [IntrNoMem]>;
-def int_arm_neon_vpadalu : Intrinsic<[llvm_anyvector_ty],
-                                     [LLVMMatchType<0>, llvm_anyvector_ty],
-                                     [IntrNoMem]>;
+def int_arm_neon_vpadals : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty], [LLVMMatchType<0>, llvm_anyvector_ty], [IntrNoMem]>;
+def int_arm_neon_vpadalu : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty], [LLVMMatchType<0>, llvm_anyvector_ty], [IntrNoMem]>;
 
 // Vector Pairwise Maximum and Minimum.
 def int_arm_neon_vpmaxs : Neon_2Arg_Intrinsic;
 def int_arm_neon_vpmaxu : Neon_2Arg_Intrinsic;
 def int_arm_neon_vpmins : Neon_2Arg_Intrinsic;
 def int_arm_neon_vpminu : Neon_2Arg_Intrinsic;
 
 // Vector Shifts:

 // Vector Conversions Between Floating-point and Fixed-point.
 def int_arm_neon_vcvtfp2fxs : Neon_CvtFPToFx_Intrinsic;
 def int_arm_neon_vcvtfp2fxu : Neon_CvtFPToFx_Intrinsic;
 def int_arm_neon_vcvtfxs2fp : Neon_CvtFxToFP_Intrinsic;
 def int_arm_neon_vcvtfxu2fp : Neon_CvtFxToFP_Intrinsic;
 
 // Vector Conversions Between Half-Precision and Single-Precision.
 def int_arm_neon_vcvtfp2hf
-    : Intrinsic<[llvm_v4i16_ty], [llvm_v4f32_ty], [IntrNoMem]>;
+    : DefaultAttrsIntrinsic<[llvm_v4i16_ty], [llvm_v4f32_ty], [IntrNoMem]>;
 def int_arm_neon_vcvthf2fp
-    : Intrinsic<[llvm_v4f32_ty], [llvm_v4i16_ty], [IntrNoMem]>;
+    : DefaultAttrsIntrinsic<[llvm_v4f32_ty], [llvm_v4i16_ty], [IntrNoMem]>;
 
 // Narrowing Saturating Vector Moves.
 def int_arm_neon_vqmovns : Neon_1Arg_Narrow_Intrinsic;
 def int_arm_neon_vqmovnu : Neon_1Arg_Narrow_Intrinsic;
 def int_arm_neon_vqmovnsu : Neon_1Arg_Narrow_Intrinsic;
 
 // Vector Table Lookup.
 // The first 1-4 arguments are the table.

 def int_arm_neon_vrintx : Neon_1Arg_Intrinsic;
 def int_arm_neon_vrinta : Neon_1Arg_Intrinsic;
 def int_arm_neon_vrintz : Neon_1Arg_Intrinsic;
 def int_arm_neon_vrintm : Neon_1Arg_Intrinsic;
 def int_arm_neon_vrintp : Neon_1Arg_Intrinsic;
 
 // De-interleaving vector loads from N-element structures.
 // Source operands are the address and alignment.
-def int_arm_neon_vld1 : Intrinsic<[llvm_anyvector_ty],
-                                  [llvm_anyptr_ty, llvm_i32_ty],
-                                  [IntrReadMem, IntrArgMemOnly]>;
-def int_arm_neon_vld2 : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>],
-                                  [llvm_anyptr_ty, llvm_i32_ty],
-                                  [IntrReadMem, IntrArgMemOnly]>;
-def int_arm_neon_vld3 : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>,
-                                   LLVMMatchType<0>],
-                                  [llvm_anyptr_ty, llvm_i32_ty],
-                                  [IntrReadMem, IntrArgMemOnly]>;
-def int_arm_neon_vld4 : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>,
-                                   LLVMMatchType<0>, LLVMMatchType<0>],
-                                  [llvm_anyptr_ty, llvm_i32_ty],
-                                  [IntrReadMem, IntrArgMemOnly]>;
-
-def int_arm_neon_vld1x2 : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>],
-                                    [LLVMAnyPointerType<LLVMMatchType<0>>],
-                                    [IntrReadMem, IntrArgMemOnly]>;
-def int_arm_neon_vld1x3 : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>,
-                                     LLVMMatchType<0>],
-                                    [LLVMAnyPointerType<LLVMMatchType<0>>],
-                                    [IntrReadMem, IntrArgMemOnly]>;
-def int_arm_neon_vld1x4 : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>,
-                                     LLVMMatchType<0>, LLVMMatchType<0>],
-                                    [LLVMAnyPointerType<LLVMMatchType<0>>],
-                                    [IntrReadMem, IntrArgMemOnly]>;
+def int_arm_neon_vld1 : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty], [llvm_anyptr_ty, llvm_i32_ty],
+def int_arm_neon_vld2 : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>], [llvm_anyptr_ty, llvm_i32_ty],
+def int_arm_neon_vld3 : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>],
+    [llvm_anyptr_ty, llvm_i32_ty], [IntrReadMem, IntrArgMemOnly]>;
+def int_arm_neon_vld4 : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>],
+    [llvm_anyptr_ty, llvm_i32_ty], [IntrReadMem, IntrArgMemOnly]>;
+
+def int_arm_neon_vld1x2 : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>],
+    [LLVMAnyPointerType<LLVMMatchType<0>>], [IntrReadMem, IntrArgMemOnly]>;
+def int_arm_neon_vld1x3 : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>],
+    [LLVMAnyPointerType<LLVMMatchType<0>>], [IntrReadMem, IntrArgMemOnly]>;
+def int_arm_neon_vld1x4 : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>],
+    [LLVMAnyPointerType<LLVMMatchType<0>>], [IntrReadMem, IntrArgMemOnly]>;
 
 // Vector load N-element structure to one lane.
 // Source operands are: the address, the N input vectors (since only one
 // lane is assigned), the lane number, and the alignment.
-def int_arm_neon_vld2lane : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>],
-                                      [llvm_anyptr_ty, LLVMMatchType<0>,
-                                       LLVMMatchType<0>, llvm_i32_ty,
-                                       llvm_i32_ty], [IntrReadMem, IntrArgMemOnly]>;
-def int_arm_neon_vld3lane : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>,
-                                       LLVMMatchType<0>],
-                                      [llvm_anyptr_ty, LLVMMatchType<0>,
-                                       LLVMMatchType<0>, LLVMMatchType<0>,
-                                       llvm_i32_ty, llvm_i32_ty],
-                                      [IntrReadMem, IntrArgMemOnly]>;
-def int_arm_neon_vld4lane : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>,
-                                       LLVMMatchType<0>, LLVMMatchType<0>],
-                                      [llvm_anyptr_ty, LLVMMatchType<0>,
-                                       LLVMMatchType<0>, LLVMMatchType<0>,
-                                       LLVMMatchType<0>, llvm_i32_ty,
-                                       llvm_i32_ty], [IntrReadMem, IntrArgMemOnly]>;
+def int_arm_neon_vld2lane : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>],
+    [llvm_anyptr_ty, LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty,
+     llvm_i32_ty],
+    [IntrReadMem, IntrArgMemOnly]>;
+def int_arm_neon_vld3lane : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>],
+    [llvm_anyptr_ty, LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>,
+def int_arm_neon_vld4lane : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>],
+    [llvm_anyptr_ty, LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>,
+     LLVMMatchType<0>, llvm_i32_ty, llvm_i32_ty],
+    [IntrReadMem, IntrArgMemOnly]>;
 
 // Vector load N-element structure to all lanes.
 // Source operands are the address and alignment.
-def int_arm_neon_vld2dup : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>],
-                                     [llvm_anyptr_ty, llvm_i32_ty],
-                                     [IntrReadMem, IntrArgMemOnly]>;
-def int_arm_neon_vld3dup : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>,
-                                      LLVMMatchType<0>],
-                                     [llvm_anyptr_ty, llvm_i32_ty],
-                                     [IntrReadMem, IntrArgMemOnly]>;
-def int_arm_neon_vld4dup : Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>,
-                                      LLVMMatchType<0>, LLVMMatchType<0>],
-                                     [llvm_anyptr_ty, llvm_i32_ty],
-                                     [IntrReadMem, IntrArgMemOnly]>;
+def int_arm_neon_vld2dup : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>], [llvm_anyptr_ty, llvm_i32_ty],
+def int_arm_neon_vld3dup : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>],
+    [llvm_anyptr_ty, llvm_i32_ty], [IntrReadMem, IntrArgMemOnly]>;
+def int_arm_neon_vld4dup : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>],
+    [llvm_anyptr_ty, llvm_i32_ty], [IntrReadMem, IntrArgMemOnly]>;
 
 // Interleaving vector stores from N-element structures.
 // Source operands are: the address, the N vectors, and the alignment.
-def int_arm_neon_vst1 : Intrinsic<[],
-                                  [llvm_anyptr_ty, llvm_anyvector_ty,
-                                   llvm_i32_ty], [IntrArgMemOnly]>;
-def int_arm_neon_vst2 : Intrinsic<[],
-                                  [llvm_anyptr_ty, llvm_anyvector_ty,
-                                   LLVMMatchType<1>, llvm_i32_ty],
-                                  [IntrArgMemOnly]>;
-def int_arm_neon_vst3 : Intrinsic<[],
-                                  [llvm_anyptr_ty, llvm_anyvector_ty,
-                                   LLVMMatchType<1>, LLVMMatchType<1>,
-                                   llvm_i32_ty], [IntrArgMemOnly]>;
-def int_arm_neon_vst4 : Intrinsic<[],
-                                  [llvm_anyptr_ty, llvm_anyvector_ty,
-                                   LLVMMatchType<1>, LLVMMatchType<1>,
-                                   LLVMMatchType<1>, llvm_i32_ty],
-                                  [IntrArgMemOnly]>;
+def int_arm_neon_vst1 : DefaultAttrsIntrinsic<
+    [], [llvm_anyptr_ty, llvm_anyvector_ty, llvm_i32_ty], [IntrArgMemOnly]>;
+def int_arm_neon_vst2 : DefaultAttrsIntrinsic<
+    [], [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty],
+def int_arm_neon_vst3 : DefaultAttrsIntrinsic<
+    [],
+    [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, LLVMMatchType<1>,
+     llvm_i32_ty],
+    [IntrArgMemOnly]>;
+def int_arm_neon_vst4 : DefaultAttrsIntrinsic<
+    [],
+    [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, LLVMMatchType<1>,
 
-def int_arm_neon_vst1x2 : Intrinsic<[],
-                                    [llvm_anyptr_ty, llvm_anyvector_ty,
-                                     LLVMMatchType<1>],
-                                    [IntrArgMemOnly, NoCapture<ArgIndex<0>>]>;
-def int_arm_neon_vst1x3 : Intrinsic<[],
-                                    [llvm_anyptr_ty, llvm_anyvector_ty,
-                                     LLVMMatchType<1>, LLVMMatchType<1>],
-                                    [IntrArgMemOnly, NoCapture<ArgIndex<0>>]>;
-def int_arm_neon_vst1x4 : Intrinsic<[],
-                                    [llvm_anyptr_ty, llvm_anyvector_ty,
-                                     LLVMMatchType<1>, LLVMMatchType<1>,
-                                     LLVMMatchType<1>],
-                                    [IntrArgMemOnly, NoCapture<ArgIndex<0>>]>;
+def int_arm_neon_vst1x2 : DefaultAttrsIntrinsic<
+    [], [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>],
+def int_arm_neon_vst1x3 : DefaultAttrsIntrinsic<
+    [], [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, LLVMMatchType<1>],
+def int_arm_neon_vst1x4 : DefaultAttrsIntrinsic<
+    [],
+    [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, LLVMMatchType<1>,
 
 // Vector store N-element structure from one lane.
 // Source operands are: the address, the N vectors, the lane number, and
 // the alignment.
-def int_arm_neon_vst2lane : Intrinsic<[],
-                                      [llvm_anyptr_ty, llvm_anyvector_ty,
-                                       LLVMMatchType<1>, llvm_i32_ty,
-                                       llvm_i32_ty], [IntrArgMemOnly]>;
-def int_arm_neon_vst3lane : Intrinsic<[],
-                                      [llvm_anyptr_ty, llvm_anyvector_ty,
-                                       LLVMMatchType<1>, LLVMMatchType<1>,
-                                       llvm_i32_ty, llvm_i32_ty],
-                                      [IntrArgMemOnly]>;
-def int_arm_neon_vst4lane : Intrinsic<[],
-                                      [llvm_anyptr_ty, llvm_anyvector_ty,
-                                       LLVMMatchType<1>, LLVMMatchType<1>,
-                                       LLVMMatchType<1>, llvm_i32_ty,
-                                       llvm_i32_ty], [IntrArgMemOnly]>;
+def int_arm_neon_vst2lane : DefaultAttrsIntrinsic<
+    [],
+    [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty,
+     llvm_i32_ty],
+    [IntrArgMemOnly]>;
+def int_arm_neon_vst3lane : DefaultAttrsIntrinsic<
+    [],
+    [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, LLVMMatchType<1>,
+def int_arm_neon_vst4lane : DefaultAttrsIntrinsic<
+    [],
+    [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, LLVMMatchType<1>,
+     LLVMMatchType<1>, llvm_i32_ty, llvm_i32_ty],
+    [IntrArgMemOnly]>;
 
 // Vector bitwise select.
-def int_arm_neon_vbsl : Intrinsic<[llvm_anyvector_ty],
-                        [LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>],
-                        [IntrNoMem]>;
+def int_arm_neon_vbsl : DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty], [LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>],
 
 
 // Crypto instructions
-class AES_1Arg_Intrinsic : Intrinsic<[llvm_v16i8_ty],
-                                     [llvm_v16i8_ty], [IntrNoMem]>;
-class AES_2Arg_Intrinsic : Intrinsic<[llvm_v16i8_ty],
-                                     [llvm_v16i8_ty, llvm_v16i8_ty],
-                                     [IntrNoMem]>;
-
-class SHA_1Arg_Intrinsic : Intrinsic<[llvm_i32_ty], [llvm_i32_ty],
-                                     [IntrNoMem]>;
-class SHA_2Arg_Intrinsic : Intrinsic<[llvm_v4i32_ty],
-                                     [llvm_v4i32_ty, llvm_v4i32_ty],
-                                     [IntrNoMem]>;
-class SHA_3Arg_i32_Intrinsic : Intrinsic<[llvm_v4i32_ty],
-                                   [llvm_v4i32_ty, llvm_i32_ty, llvm_v4i32_ty],
-                                   [IntrNoMem]>;
-class SHA_3Arg_v4i32_Intrinsic : Intrinsic<[llvm_v4i32_ty],
-                                   [llvm_v4i32_ty, llvm_v4i32_ty,llvm_v4i32_ty],
-                                   [IntrNoMem]>;
+class AES_1Arg_Intrinsic : DefaultAttrsIntrinsic<
+    [llvm_v16i8_ty], [llvm_v16i8_ty], [IntrNoMem]>;
+class AES_2Arg_Intrinsic : DefaultAttrsIntrinsic<
+    [llvm_v16i8_ty], [llvm_v16i8_ty, llvm_v16i8_ty], [IntrNoMem]>;
+
+class SHA_1Arg_Intrinsic : DefaultAttrsIntrinsic<
+    [llvm_i32_ty], [llvm_i32_ty], [IntrNoMem]>;
+class SHA_2Arg_Intrinsic : DefaultAttrsIntrinsic<
+    [llvm_v4i32_ty], [llvm_v4i32_ty, llvm_v4i32_ty], [IntrNoMem]>;
+class SHA_3Arg_i32_Intrinsic : DefaultAttrsIntrinsic<
+    [llvm_v4i32_ty], [llvm_v4i32_ty, llvm_i32_ty, llvm_v4i32_ty], [IntrNoMem]>;
+class SHA_3Arg_v4i32_Intrinsic : DefaultAttrsIntrinsic<
+    [llvm_v4i32_ty], [llvm_v4i32_ty, llvm_v4i32_ty,llvm_v4i32_ty], [IntrNoMem]>;
 
 def int_arm_neon_aesd : AES_2Arg_Intrinsic;
 def int_arm_neon_aese : AES_2Arg_Intrinsic;
 def int_arm_neon_aesimc : AES_1Arg_Intrinsic;
 def int_arm_neon_aesmc : AES_1Arg_Intrinsic;
 def int_arm_neon_sha1h : SHA_1Arg_Intrinsic;
 def int_arm_neon_sha1su1 : SHA_2Arg_Intrinsic;
 def int_arm_neon_sha256su0 : SHA_2Arg_Intrinsic;
 def int_arm_neon_sha1c : SHA_3Arg_i32_Intrinsic;
 def int_arm_neon_sha1m : SHA_3Arg_i32_Intrinsic;
 def int_arm_neon_sha1p : SHA_3Arg_i32_Intrinsic;
 def int_arm_neon_sha1su0: SHA_3Arg_v4i32_Intrinsic;
 def int_arm_neon_sha256h: SHA_3Arg_v4i32_Intrinsic;
 def int_arm_neon_sha256h2: SHA_3Arg_v4i32_Intrinsic;
 def int_arm_neon_sha256su1: SHA_3Arg_v4i32_Intrinsic;
 
 def int_arm_neon_vqrdmlah : Neon_3Arg_Intrinsic;
 def int_arm_neon_vqrdmlsh : Neon_3Arg_Intrinsic;
 
 // Armv8.2-A dot product instructions
 class Neon_Dot_Intrinsic
-  : Intrinsic<[llvm_anyvector_ty],
+  : DefaultAttrsIntrinsic<[llvm_anyvector_ty],
                           [LLVMMatchType<0>, llvm_anyvector_ty,
                            LLVMMatchType<1>],
                           [IntrNoMem]>;
 def int_arm_neon_udot : Neon_Dot_Intrinsic;
 def int_arm_neon_sdot : Neon_Dot_Intrinsic;
 
 // v8.6-A Matrix Multiply Intrinsics
 class Neon_MatMul_Intrinsic
-  : Intrinsic<[llvm_anyvector_ty],
+  : DefaultAttrsIntrinsic<[llvm_anyvector_ty],
                           [LLVMMatchType<0>, llvm_anyvector_ty,
                            LLVMMatchType<1>],
                           [IntrNoMem]>;
 def int_arm_neon_ummla  : Neon_MatMul_Intrinsic;
 def int_arm_neon_smmla  : Neon_MatMul_Intrinsic;
 def int_arm_neon_usmmla : Neon_MatMul_Intrinsic;
 def int_arm_neon_usdot  : Neon_Dot_Intrinsic;
 
 // v8.6-A Bfloat Intrinsics
 def int_arm_neon_vcvtfp2bf
-    : Intrinsic<[llvm_anyvector_ty], [llvm_v4f32_ty], [IntrNoMem]>;
+    : DefaultAttrsIntrinsic<[llvm_anyvector_ty], [llvm_v4f32_ty], [IntrNoMem]>;
 def int_arm_neon_vcvtbfp2bf
-    : Intrinsic<[llvm_bfloat_ty], [llvm_float_ty], [IntrNoMem]>;
+    : DefaultAttrsIntrinsic<[llvm_bfloat_ty], [llvm_float_ty], [IntrNoMem]>;
 
 def int_arm_neon_bfdot : Neon_Dot_Intrinsic;
 def int_arm_neon_bfmmla
-    : Intrinsic<[llvm_v4f32_ty],
+    : DefaultAttrsIntrinsic<[llvm_v4f32_ty],
                             [llvm_v4f32_ty, llvm_v8bf16_ty, llvm_v8bf16_ty],
                             [IntrNoMem]>;
 
 class Neon_BF16FML_Intrinsic
-    : Intrinsic<[llvm_v4f32_ty],
+    : DefaultAttrsIntrinsic<[llvm_v4f32_ty],
                             [llvm_v4f32_ty, llvm_v8bf16_ty, llvm_v8bf16_ty],
                             [IntrNoMem]>;
 def int_arm_neon_bfmlalb : Neon_BF16FML_Intrinsic;
 def int_arm_neon_bfmlalt : Neon_BF16FML_Intrinsic;
 
-def int_arm_cls: Intrinsic<[llvm_i32_ty], [llvm_i32_ty], [IntrNoMem]>;
-def int_arm_cls64: Intrinsic<[llvm_i32_ty], [llvm_i64_ty], [IntrNoMem]>;
+def int_arm_cls: DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty],
+                                       [IntrNoMem]>;
+def int_arm_cls64: DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i64_ty],
+                                         [IntrNoMem]>;
 
-def int_arm_mve_vctp8  : Intrinsic<[llvm_v16i1_ty], [llvm_i32_ty], [IntrNoMem]>;
-def int_arm_mve_vctp16 : Intrinsic<[llvm_v8i1_ty], [llvm_i32_ty], [IntrNoMem]>;
-def int_arm_mve_vctp32 : Intrinsic<[llvm_v4i1_ty], [llvm_i32_ty], [IntrNoMem]>;
-def int_arm_mve_vctp64 : Intrinsic<[llvm_v2i1_ty], [llvm_i32_ty], [IntrNoMem]>;
+def int_arm_mve_vctp8  : DefaultAttrsIntrinsic<[llvm_v16i1_ty], [llvm_i32_ty],
+                                               [IntrNoMem]>;
+def int_arm_mve_vctp16 : DefaultAttrsIntrinsic<[llvm_v8i1_ty], [llvm_i32_ty],
+                                               [IntrNoMem]>;
+def int_arm_mve_vctp32 : DefaultAttrsIntrinsic<[llvm_v4i1_ty], [llvm_i32_ty],
+                                               [IntrNoMem]>;
+def int_arm_mve_vctp64 : DefaultAttrsIntrinsic<[llvm_v2i1_ty], [llvm_i32_ty],
+                                               [IntrNoMem]>;
 
 // v8.3-A Floating-point complex add
 def int_arm_neon_vcadd_rot90  : Neon_2Arg_Intrinsic;
 def int_arm_neon_vcadd_rot270 : Neon_2Arg_Intrinsic;
 
 // GNU eabi mcount
+// TODO: Add applicable default attributes.
 def int_arm_gnu_eabi_mcount : Intrinsic<[], [], []>;
 
-def int_arm_mve_pred_i2v : Intrinsic<
+def int_arm_mve_pred_i2v : DefaultAttrsIntrinsic<
   [llvm_anyvector_ty], [llvm_i32_ty], [IntrNoMem]>;
-def int_arm_mve_pred_v2i : Intrinsic<
+def int_arm_mve_pred_v2i : DefaultAttrsIntrinsic<
   [llvm_i32_ty], [llvm_anyvector_ty], [IntrNoMem]>;
-def int_arm_mve_vreinterpretq : Intrinsic<
+def int_arm_mve_vreinterpretq : DefaultAttrsIntrinsic<
   [llvm_anyvector_ty], [llvm_anyvector_ty], [IntrNoMem]>;
 
-def int_arm_mve_min_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_min_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */,
     llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_max_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_max_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */,
     llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_abd_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_abd_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */,
     llvm_anyvector_ty, LLVMMatchType<0>], [IntrNoMem]>;
-def int_arm_mve_add_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_add_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_and_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_and_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_bic_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_bic_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_eor_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_eor_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_orn_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_orn_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_orr_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_orr_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_sub_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_sub_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_mul_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_mul_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_mulh_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_mulh_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */,
     llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_qdmulh_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_qdmulh_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_rmulh_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_rmulh_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */,
     llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_qrdmulh_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_qrdmulh_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_mull_int_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_mull_int_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty /* unsigned */,
     llvm_i32_ty /* top */, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_mull_poly_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_mull_poly_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty, llvm_anyvector_ty,
     LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_qadd_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_qadd_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */,
     llvm_anyvector_ty, LLVMMatchType<0>], [IntrNoMem]>;
-def int_arm_mve_hadd_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_hadd_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */,
     llvm_anyvector_ty, LLVMMatchType<0>], [IntrNoMem]>;
-def int_arm_mve_rhadd_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_rhadd_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */,
     llvm_anyvector_ty, LLVMMatchType<0>], [IntrNoMem]>;
-def int_arm_mve_qsub_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_qsub_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */,
     llvm_anyvector_ty, LLVMMatchType<0>], [IntrNoMem]>;
-def int_arm_mve_hsub_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_hsub_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */,
     llvm_anyvector_ty, LLVMMatchType<0>], [IntrNoMem]>;
-def int_arm_mve_vmina_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_vmina_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty],
     [IntrNoMem]>;
-def int_arm_mve_vmaxa_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_vmaxa_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty],
     [IntrNoMem]>;
-def int_arm_mve_vminnma_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_vminnma_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty],
     [IntrNoMem]>;
-def int_arm_mve_vmaxnma_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_vmaxnma_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_anyvector_ty],
     [IntrNoMem]>;
 
 multiclass MVEPredicated<list<LLVMType> rets, list<LLVMType> params,
                          LLVMType pred = llvm_anyvector_ty,
                          list<IntrinsicProperty> props = [IntrNoMem],
                          list<SDNodeProperty> sdprops = []> {
-  def "": Intrinsic<rets, params, props, "", sdprops>;
-  def _predicated: Intrinsic<rets, params # [pred], props, "", sdprops>;
+  def "": DefaultAttrsIntrinsic<rets, params, props, "", sdprops>;
+  def _predicated: DefaultAttrsIntrinsic<rets, params # [pred], props, "",
+                                         sdprops>;
 }
 multiclass MVEPredicatedM<list<LLVMType> rets, list<LLVMType> params,
                           LLVMType pred = llvm_anyvector_ty,
                           list<IntrinsicProperty> props = [IntrNoMem]> {
-  def "": Intrinsic<rets, params, props>;
-  def _predicated: Intrinsic<rets, params # [pred,
+  def "": DefaultAttrsIntrinsic<rets, params, props>;
+  def _predicated: DefaultAttrsIntrinsic<rets, params # [pred,
       !if(!eq(rets[0], llvm_anyvector_ty),
           LLVMMatchType<0>, rets[0])], props>;
 }
 
 multiclass MVE_minmaxv {
   defm v: MVEPredicated<[llvm_i32_ty],
      [llvm_i32_ty, llvm_anyvector_ty, llvm_i32_ty /* unsigned */]>;
   defm av: MVEPredicated<[llvm_i32_ty],

 
 // Intrinsic with a predicated and a non-predicated case. The predicated case
 // has two additional parameters: inactive (the value for inactive lanes, can
 // be undef) and predicate.
 multiclass MVEMXPredicated<list<LLVMType> rets, list<LLVMType> flags,
                            list<LLVMType> params, LLVMType inactive,
                            LLVMType predicate,
                            list<IntrinsicProperty> props = [IntrNoMem]> {
-  def "":          Intrinsic<rets, flags # params, props>;
-  def _predicated: Intrinsic<rets, flags # [inactive] # params # [predicate],
-                             props>;
+  def "":          DefaultAttrsIntrinsic<rets, flags # params, props>;
+  def _predicated: DefaultAttrsIntrinsic<
+      rets, flags # [inactive] # params # [predicate], props>;
 }
 
 defm int_arm_mve_vcvt_narrow: MVEPredicated<[llvm_v8f16_ty],
    [llvm_v8f16_ty, llvm_v4f32_ty, llvm_i32_ty], llvm_v4i1_ty>;
 defm int_arm_mve_vcvt_widen: MVEMXPredicated<[llvm_v4f32_ty], [],
    [llvm_v8f16_ty, llvm_i32_ty], llvm_v4f32_ty, llvm_v4i1_ty>;
 
 defm int_arm_mve_vldr_gather_base: MVEPredicated<
defm int_arm_mve_vldr_gather_offset: MVEPredicated<
    [llvm_anyvector_ty], [llvm_anyptr_ty, llvm_anyvector_ty,
    llvm_i32_ty, llvm_i32_ty, llvm_i32_ty], llvm_anyvector_ty, [IntrReadMem],
    [SDNPMemOperand]>;
 defm int_arm_mve_vstr_scatter_offset: MVEPredicated<
    [], [llvm_anyptr_ty, llvm_anyvector_ty, llvm_anyvector_ty,
    llvm_i32_ty, llvm_i32_ty], llvm_anyvector_ty, [IntrWriteMem],
    [SDNPMemOperand]>;
 
-def int_arm_mve_shl_imm_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_shl_imm_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, llvm_i32_ty, llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
-def int_arm_mve_shr_imm_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_shr_imm_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, llvm_i32_ty, llvm_i32_ty, // extra i32 is unsigned flag
     llvm_anyvector_ty, LLVMMatchType<0>],
    [IntrNoMem]>;
 
 defm int_arm_mve_vqshl_imm: MVEPredicatedM<[llvm_anyvector_ty],
    [LLVMMatchType<0>, llvm_i32_ty /*shiftcount*/, llvm_i32_ty /*unsigned*/]>;
 defm int_arm_mve_vrshr_imm: MVEPredicatedM<[llvm_anyvector_ty],
    [LLVMMatchType<0>, llvm_i32_ty /*shiftcount*/, llvm_i32_ty /*unsigned*/]>;
[llvm_anyvector_ty], [LLVMMatchType<0>, llvm_i32_ty /*shiftcount*/,
     llvm_i32_ty /*saturate*/, llvm_i32_ty /*round*/, llvm_i32_ty /*unsigned*/]>;
 defm int_arm_mve_vshl_vector: MVEPredicatedM<
    [llvm_anyvector_ty], [LLVMMatchType<0>, llvm_anyvector_ty /*shiftcounts*/,
     llvm_i32_ty /*saturate*/, llvm_i32_ty /*round*/, llvm_i32_ty /*unsigned*/]>;
 
 // MVE scalar shifts.
 class ARM_MVE_qrshift_single<list<LLVMType> value,
                              list<LLVMType> saturate = []> :
-  Intrinsic<value, value # [llvm_i32_ty] # saturate, [IntrNoMem]>;
+  DefaultAttrsIntrinsic<value, value # [llvm_i32_ty] # saturate, [IntrNoMem]>;
 multiclass ARM_MVE_qrshift<list<LLVMType> saturate = []> {
   // Most of these shifts come in 32- and 64-bit versions. But only
   // the 64-bit ones have the extra saturation argument (if any).
   def "": ARM_MVE_qrshift_single<[llvm_i32_ty]>;
   def l:  ARM_MVE_qrshift_single<[llvm_i32_ty, llvm_i32_ty], saturate>;
 }
 defm int_arm_mve_urshr: ARM_MVE_qrshift;
 defm int_arm_mve_uqshl: ARM_MVE_qrshift;
 defm int_arm_mve_srshr: ARM_MVE_qrshift;
 defm int_arm_mve_sqshl: ARM_MVE_qrshift;
 defm int_arm_mve_uqrshl: ARM_MVE_qrshift<[llvm_i32_ty]>;
 defm int_arm_mve_sqrshr: ARM_MVE_qrshift<[llvm_i32_ty]>;
 // LSLL and ASRL only have 64-bit versions, not 32.
 def int_arm_mve_lsll: ARM_MVE_qrshift_single<[llvm_i32_ty, llvm_i32_ty]>;
 def int_arm_mve_asrl: ARM_MVE_qrshift_single<[llvm_i32_ty, llvm_i32_ty]>;
 
-def int_arm_mve_vabd: Intrinsic<
+def int_arm_mve_vabd: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */],
    [IntrNoMem]>;
-def int_arm_mve_vadc: Intrinsic<
+def int_arm_mve_vadc: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty, llvm_i32_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty], [IntrNoMem]>;
-def int_arm_mve_vsbc: Intrinsic<
+def int_arm_mve_vsbc: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty, llvm_i32_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty], [IntrNoMem]>;
-def int_arm_mve_vadc_predicated: Intrinsic<
+def int_arm_mve_vadc_predicated: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty, llvm_i32_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>,
     llvm_i32_ty, llvm_anyvector_ty], [IntrNoMem]>;
-def int_arm_mve_vsbc_predicated: Intrinsic<
+def int_arm_mve_vsbc_predicated: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty, llvm_i32_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>,
     llvm_i32_ty, llvm_anyvector_ty], [IntrNoMem]>;
-def int_arm_mve_vshlc: Intrinsic<
+def int_arm_mve_vshlc: DefaultAttrsIntrinsic<
    [llvm_i32_ty /* bits shifted out */, llvm_anyvector_ty],
    [LLVMMatchType<0>, llvm_i32_ty /* bits shifted in */,
     llvm_i32_ty /* shift count */], [IntrNoMem]>;
-def int_arm_mve_vshlc_predicated: Intrinsic<
+def int_arm_mve_vshlc_predicated: DefaultAttrsIntrinsic<
    [llvm_i32_ty /* bits shifted out */, llvm_anyvector_ty],
    [LLVMMatchType<0>, llvm_i32_ty /* bits shifted in */,
     llvm_i32_ty /* shift count */, llvm_anyvector_ty], [IntrNoMem]>;
-def int_arm_mve_vmulh: Intrinsic<
+def int_arm_mve_vmulh: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */],
    [IntrNoMem]>;
-def int_arm_mve_vqdmulh: Intrinsic<
+def int_arm_mve_vqdmulh: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>], [IntrNoMem]>;
-def int_arm_mve_vhadd: Intrinsic<
+def int_arm_mve_vhadd: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */],
    [IntrNoMem]>;
-def int_arm_mve_vrhadd: Intrinsic<
+def int_arm_mve_vrhadd: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */],
    [IntrNoMem]>;
-def int_arm_mve_vhsub: Intrinsic<
+def int_arm_mve_vhsub: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */],
    [IntrNoMem]>;
-def int_arm_mve_vrmulh: Intrinsic<
+def int_arm_mve_vrmulh: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty /* unsigned */],
    [IntrNoMem]>;
-def int_arm_mve_vqrdmulh: Intrinsic<
+def int_arm_mve_vqrdmulh: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty],
    [LLVMMatchType<0>, LLVMMatchType<0>], [IntrNoMem]>;
-def int_arm_mve_vmull: Intrinsic<
+def int_arm_mve_vmull: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty],
    [llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty /* unsigned */,
     llvm_i32_ty /* top */], [IntrNoMem]>;
-def int_arm_mve_vmull_poly: Intrinsic<
+def int_arm_mve_vmull_poly: DefaultAttrsIntrinsic<
    [llvm_anyvector_ty],
    [llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty], [IntrNoMem]>;
 
 // The first two parameters are compile-time constants:
 // * Halving: 0 means  halving (vhcaddq), 1 means non-halving (vcaddq) 
 //            instruction. Note: the flag is inverted to match the corresponding
 //            bit in the instruction encoding
 // * Rotation angle: 0 mean 90 deg, 1 means 180 deg
defm int_arm_mve_vcmulq : MVEMXPredicated<
   [llvm_i32_ty], [LLVMMatchType<0>, LLVMMatchType<0>],
    LLVMMatchType<0>, llvm_anyvector_ty>;
 
 defm int_arm_mve_vcmlaq : MVEPredicated<
   [llvm_anyvector_ty],
   [llvm_i32_ty, LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>],
    llvm_anyvector_ty>;
 
-def int_arm_mve_vld2q: Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>], [llvm_anyptr_ty],
-                                 [IntrReadMem, IntrArgMemOnly]>;
-def int_arm_mve_vld4q: Intrinsic<[llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>], [llvm_anyptr_ty],
-                                 [IntrReadMem, IntrArgMemOnly]>;
+def int_arm_mve_vld2q: DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>], [llvm_anyptr_ty],
+def int_arm_mve_vld4q: DefaultAttrsIntrinsic<
+    [llvm_anyvector_ty, LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>],
+    [llvm_anyptr_ty], [IntrReadMem, IntrArgMemOnly]>;
 
-def int_arm_mve_vst2q: Intrinsic<[], [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty],
-                                 [IntrWriteMem, IntrArgMemOnly], "", [SDNPMemOperand]>;
-def int_arm_mve_vst4q: Intrinsic<[], [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, LLVMMatchType<1>, LLVMMatchType<1>, llvm_i32_ty],
-                                 [IntrWriteMem, IntrArgMemOnly], "", [SDNPMemOperand]>;
+def int_arm_mve_vst2q: DefaultAttrsIntrinsic<
+    [], [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty],
+def int_arm_mve_vst4q: DefaultAttrsIntrinsic<
+    [],
+    [llvm_anyptr_ty, llvm_anyvector_ty, LLVMMatchType<1>, LLVMMatchType<1>,
+     LLVMMatchType<1>, llvm_i32_ty],
 
 // MVE vector absolute difference and accumulate across vector
 // The first operand is an 'unsigned' flag. The remaining operands are:
 // * accumulator
 // * first vector operand
 // * second vector operand
 // * mask (only in predicated versions)
 defm int_arm_mve_vabav: MVEPredicated<

 
 // Flags:
 // * unsigned
 defm int_arm_mve_vcvt_fix: MVEMXPredicated<
   [llvm_anyvector_ty /* output */], [llvm_i32_ty],
   [llvm_anyvector_ty /* input vector */, llvm_i32_ty /* scale */],
   LLVMMatchType<0>, llvm_anyvector_ty>;
 
-def int_arm_mve_vcvt_fp_int_predicated: Intrinsic<
+def int_arm_mve_vcvt_fp_int_predicated: DefaultAttrsIntrinsic<
   [llvm_anyvector_ty], [llvm_anyvector_ty, llvm_i32_ty /* unsigned */,
    llvm_anyvector_ty /* predicate */, LLVMMatchType<0> /* inactive */],
   [IntrNoMem]>;
 
 foreach suffix = ["a","n","p","m"] in {
   defm "int_arm_mve_vcvt"#suffix: MVEMXPredicated<
     [llvm_anyvector_ty /* output */], [llvm_i32_ty /* unsigned */],
     [llvm_anyvector_ty /* input */], LLVMMatchType<0>, llvm_anyvector_ty>;
 }
 
-def int_arm_mve_vrintn: Intrinsic<
+def int_arm_mve_vrintn: DefaultAttrsIntrinsic<
   [llvm_anyvector_ty], [LLVMMatchType<0>], [IntrNoMem]>;
-def int_arm_mve_vcls: Intrinsic<
+def int_arm_mve_vcls: DefaultAttrsIntrinsic<
   [llvm_anyvector_ty], [LLVMMatchType<0>], [IntrNoMem]>;
 
 defm int_arm_mve_vbrsr: MVEMXPredicated<
   [llvm_anyvector_ty], [],
   [LLVMMatchType<0>, llvm_i32_ty], LLVMMatchType<0>, llvm_anyvector_ty>;
 
-def int_arm_mve_vqdmull: Intrinsic<
+def int_arm_mve_vqdmull: DefaultAttrsIntrinsic<
   [llvm_anyvector_ty],
   [llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty],
   [IntrNoMem]>;
-def int_arm_mve_vqdmull_predicated: Intrinsic<
+def int_arm_mve_vqdmull_predicated: DefaultAttrsIntrinsic<
   [llvm_anyvector_ty],
   [llvm_anyvector_ty, LLVMMatchType<1>, llvm_i32_ty, llvm_anyvector_ty,
    LLVMMatchType<0>],
   [IntrNoMem]>;
 
-class MVESimpleUnaryPredicated: Intrinsic<[llvm_anyvector_ty],
+class MVESimpleUnaryPredicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, llvm_anyvector_ty, LLVMMatchType<0>], [IntrNoMem]>;
 
 def int_arm_mve_mvn_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_abs_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_neg_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_qabs_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_qneg_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_clz_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_cls_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_vrintz_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_vrintm_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_vrintp_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_vrinta_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_vrintx_predicated: MVESimpleUnaryPredicated;
 def int_arm_mve_vrintn_predicated: MVESimpleUnaryPredicated;
 
-def int_arm_mve_vrev_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_vrev_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, llvm_i32_ty /* size to reverse */,
     llvm_anyvector_ty, LLVMMatchType<0>], [IntrNoMem]>;
 
-def int_arm_mve_vmovl_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_vmovl_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [llvm_anyvector_ty, llvm_i32_ty /* unsigned */, llvm_i32_ty /* top half */,
     llvm_anyvector_ty /* predicate */, LLVMMatchType<0>], [IntrNoMem]>;
-def int_arm_mve_vmovn_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_vmovn_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, llvm_anyvector_ty, llvm_i32_ty /* top half */,
     llvm_anyvector_ty /* predicate */], [IntrNoMem]>;
 
-def int_arm_mve_vqmovn: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_vqmovn: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, llvm_anyvector_ty,
     llvm_i32_ty /* unsigned output */, llvm_i32_ty /* unsigned input */,
     llvm_i32_ty /* top half */], [IntrNoMem]>;
-def int_arm_mve_vqmovn_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_vqmovn_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0>, llvm_anyvector_ty,
     llvm_i32_ty /* unsigned output */, llvm_i32_ty /* unsigned input */,
     llvm_i32_ty /* top half */, llvm_anyvector_ty /* pred */], [IntrNoMem]>;
 
-def int_arm_mve_fma_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_fma_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0> /* mult op #1 */, LLVMMatchType<0> /* mult op #2 */,
     LLVMMatchType<0> /* addend */, llvm_anyvector_ty /* pred */], [IntrNoMem]>;
-def int_arm_mve_vmla_n_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_vmla_n_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0> /* mult op #1 */, LLVMMatchType<0> /* addend */,
     llvm_i32_ty /* mult op #2 (scalar) */, llvm_anyvector_ty /* pred */],
    [IntrNoMem]>;
-def int_arm_mve_vmlas_n_predicated: Intrinsic<[llvm_anyvector_ty],
+def int_arm_mve_vmlas_n_predicated: DefaultAttrsIntrinsic<[llvm_anyvector_ty],
    [LLVMMatchType<0> /* mult op #1 */, LLVMMatchType<0> /* mult op #2 */,
     llvm_i32_ty /* addend (scalar) */, llvm_anyvector_ty /* pred */],
    [IntrNoMem]>;
 
 defm int_arm_mve_vqdmlah: MVEPredicated<[llvm_anyvector_ty],
   [LLVMMatchType<0> /* mult op #1 */, LLVMMatchType<0> /* addend */,
    llvm_i32_ty /* mult op #2 (scalar) */]>;
 defm int_arm_mve_vqrdmlah: MVEPredicated<[llvm_anyvector_ty],
   [LLVMMatchType<0> /* mult op #1 */, LLVMMatchType<0> /* addend */,
    llvm_i32_ty /* mult op #2 (scalar) */]>;
 defm int_arm_mve_vqdmlash: MVEPredicated<[llvm_anyvector_ty],
   [LLVMMatchType<0> /* mult op #1 */, LLVMMatchType<0> /* mult op #2 */,
    llvm_i32_ty /* addend (scalar) */]>;
 defm int_arm_mve_vqrdmlash: MVEPredicated<[llvm_anyvector_ty],
   [LLVMMatchType<0> /* mult op #1 */, LLVMMatchType<0> /* mult op #2 */,
    llvm_i32_ty /* addend (scalar) */]>;
 
 defm int_arm_mve_vqdmlad: MVEPredicated<[llvm_anyvector_ty],
   [LLVMMatchType<0>, LLVMMatchType<0>, LLVMMatchType<0>,
    llvm_i32_ty /* exchange */, llvm_i32_ty /* round */,
    llvm_i32_ty /* subtract */]>;
 
 // CDE (Custom Datapath Extension)
 
+// TODO: Add applicable default attributes.
 multiclass CDEGPRIntrinsics<list<LLVMType> args> {
   def "" : Intrinsic<
     [llvm_i32_ty],
     !listconcat([llvm_i32_ty /* coproc */], args, [llvm_i32_ty /* imm */]),
     [IntrNoMem, ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<!add(!size(args), 1)>>]>;
   def a : Intrinsic<
     [llvm_i32_ty],
     !listconcat([llvm_i32_ty /* coproc */, llvm_i32_ty /* acc */], args,

llvm/test/CodeGen/ARM/vector-DAGCombine.ll

 
 ; Test folding a binary vector operation with constant BUILD_VECTOR
 ; operands with i16 elements.
 define void @test_i16_constant_fold() nounwind optsize {
 ; CHECK-LABEL: test_i16_constant_fold:
 ; CHECK:       @ %bb.0: @ %entry
 ; CHECK-NEXT:    vmov.i8 d16, #0x1
 ; CHECK-NEXT:    vst1.8 {d16}, [r0]
+; CHECK-NEXT:    bx lr
 entry:
   %0 = sext <4 x i1> zeroinitializer to <4 x i16>
   %1 = add <4 x i16> %0, zeroinitializer
   %2 = shufflevector <4 x i16> %1, <4 x i16> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
   %3 = add <8 x i16> %2, <i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1>
   %4 = trunc <8 x i16> %3 to <8 x i8>
   tail call void @llvm.arm.neon.vst1.p0i8.v8i8(i8* undef, <8 x i8> %4, i32 1)
-  unreachable
+  ret void
 }
 
 declare void @llvm.arm.neon.vst1.p0i8.v8i8(i8*, <8 x i8>, i32) nounwind
 
 ; Test that loads and stores of i64 vector elements are handled as f64 values
 ; so they are not split up into i32 values.  Radar 8755338.
 define void @i64_buildvector(i64* %ptr, <2 x i64>* %vp) nounwind {
 ; CHECK-LABEL: i64_buildvector: