[PATCH] D79448: [X86] Allow Yz inline assembly constraint to choose ymm0 or zmm0 when avx/avx512 are enabled and type is 256 or 512 bits

[Craig Topper via Phabricator via cfe-commits]

craig.topper created this revision.
craig.topper added reviewers: RKSimon, spatel, rnk, echristo.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

gcc supports selecting ymm0/zmm0 for the Yz constraint when used with 256 or 512 bit vector types.

Fixes PR45806


https://reviews.llvm.org/D79448

Files:
  clang/lib/Basic/Targets/X86.cpp
  clang/test/CodeGen/x86-inline-asm-v-constraint.c
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/inline-asm-avx-v-constraint.ll
  llvm/test/CodeGen/X86/inline-asm-avx512f-v-constraint.ll

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