[all-commits] [llvm/llvm-project] 3cee36: [X86][SSE] X86ISD::FSETCC nodes (cmpss/cmpsd) retu...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3cee36c5acdb292c331818c553bfb8e5abbdb95e
      https://github.com/llvm/llvm-project/commit/3cee36c5acdb292c331818c553bfb8e5abbdb95e
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-07-13 (Tue, 13 Jul 2021)

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

  Log Message:
  -----------
  [X86][SSE] X86ISD::FSETCC nodes (cmpss/cmpsd) return a 0/-1 allbits signbits result (REAPPLIED)

Annoyingly, i686 cmpsd handling still fails to remove the unnecessary neg(and(x,1))

Reapplied rGe4aa6ad13216 with fix for intrinsic variants of the opcode which uses a vector return type