[all-commits] [llvm/llvm-project] f95388: [X86] Custom widen 128/256-bit vXi32 uint_to_fp on...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: f953882113d089206821ad3113a48d873b7c7f23
      https://github.com/llvm/llvm-project/commit/f953882113d089206821ad3113a48d873b7c7f23
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2019-12-26 (Thu, 26 Dec 2019)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/lib/Target/X86/X86InstrAVX512.td
    M llvm/test/CodeGen/X86/vec-strict-inttofp-128.ll
    M llvm/test/CodeGen/X86/vec-strict-inttofp-256.ll
    M llvm/test/CodeGen/X86/vector-constrained-fp-intrinsics.ll

  Log Message:
  -----------
  [X86] Custom widen 128/256-bit vXi32 uint_to_fp on avx512f targets without avx512vl. Similar for vXi64 sint_to_fp/uint_to_fp on avx512dq without avx512vl.

Previously we widened these through isel patterns, but that
didn't work for STRICT_ nodes. Those need to be padded with
zeroes in the upper bits which is harder to do in isel patterns.