[all-commits] [llvm/llvm-project] 72fddd: [X86] ReplaceNodeResults - widen vector truncate n...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 72fddda8af473b893c7c81af78364982fcb64c86
      https://github.com/llvm/llvm-project/commit/72fddda8af473b893c7c81af78364982fcb64c86
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2023-07-11 (Tue, 11 Jul 2023)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/masked_store_trunc.ll
    M llvm/test/CodeGen/X86/masked_store_trunc_ssat.ll
    M llvm/test/CodeGen/X86/masked_store_trunc_usat.ll
    M llvm/test/CodeGen/X86/pmulh.ll
    M llvm/test/CodeGen/X86/vector-trunc-packus.ll
    M llvm/test/CodeGen/X86/vector-trunc-ssat.ll
    M llvm/test/CodeGen/X86/vector-trunc-usat.ll
    M llvm/test/CodeGen/X86/vector-trunc.ll

  Log Message:
  -----------
  [X86] ReplaceNodeResults - widen vector truncate nodes on pre-SSSE3 targets

Building on the support for wider input vector types from D154592, try to more aggressively widen inputs instead of scalarizing them.