[PATCH] D65355: [AArch64][GlobalISel] Select @llvm.aarch64.stlxr for 32-bit pointers

[Jessica Paquette via Phabricator via llvm-commits]

paquette created this revision.
paquette added a reviewer: aemerson.
Herald added subscribers: Petar.Avramovic, hiraditya, kristof.beyls, javed.absar, rovka.
Herald added a project: LLVM.

Add partial instruction selection for intrinsics like this:

  declare i32 @llvm.aarch64.stlxr(i64, i32*)

(This only handles the case where a G_ZEXT is feeding the intrinsic.)

Also make sure that the added store instruction actually has the memory op from
the original G_STORE.

Update select-stlxr-intrin.mir and arm64-ldxr-stxr.ll.


https://reviews.llvm.org/D65355

Files:
  llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/select-stlxr-intrin.mir
  llvm/test/CodeGen/AArch64/arm64-ldxr-stxr.ll

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