[PATCH] D71691: [x86] Solve the problem caused by strict and non-strict FP-TO-S/UINT sharing CVTTP2SI/CVTTP2UI nodes

[LiuChen via Phabricator via llvm-commits]

LiuChen3 created this revision.
LiuChen3 added reviewers: pengfei, craig.topper.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.
LiuChen3 added a parent revision: D71590: [LegalizeTypes] Copy SDNodeFlags when scalarizing, splitting, or unrolling strict fp nodes..

Before this patch, It will prevent emitting masked conversion instruction and emit an unmasked instruction and a masked move instruction.
With this patch, non-strict FP_TO_S/UINT will emit one masked conversion instruction.


https://reviews.llvm.org/D71691

Files:
  llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/avx512-intrinsics.ll
  llvm/test/CodeGen/X86/avx512dq-intrinsics.ll
  llvm/test/CodeGen/X86/avx512dqvl-intrinsics.ll
  llvm/test/CodeGen/X86/avx512vl-intrinsics-fast-isel.ll
  llvm/test/CodeGen/X86/vec-strict-fptoint-128.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D71691.234670.patch
Type: text/x-patch
Size: 49418 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20191219/b95fdee6/attachment-0001.bin>