[all-commits] [llvm/llvm-project] 9d3b19: [X86] ReplaceNodeResults - relax the value type co...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9d3b19e8e9271c5c9e19549fe5e7223339e1fca4
      https://github.com/llvm/llvm-project/commit/9d3b19e8e9271c5c9e19549fe5e7223339e1fca4
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2023-08-07 (Mon, 07 Aug 2023)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/masked_store_trunc.ll
    M llvm/test/CodeGen/X86/vector-trunc.ll

  Log Message:
  -----------
  [X86] ReplaceNodeResults - relax the value type constraints for TRUNCATE widening

With SSSE3, widen the truncation for anything other than vXi64 -> vXi8 smaller than v8i64 (where PSHUFB would be better).