[all-commits] [llvm/llvm-project] 2ef13c: [AMDGPU] Fix whole-wave function prologue to set E...

[Arseniy Obolenskiy via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2ef13ce61b9625080e20df1e13763aa4d4fb5964
      https://github.com/llvm/llvm-project/commit/2ef13ce61b9625080e20df1e13763aa4d4fb5964
  Author: Arseniy Obolenskiy <arseniy.obolenskiy at amd.com>
  Date:   2026-07-07 (Tue, 07 Jul 2026)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIFrameLowering.cpp
    M llvm/test/CodeGen/AMDGPU/whole-wave-functions-pei.mir
    M llvm/test/CodeGen/AMDGPU/whole-wave-functions.ll

  Log Message:
  -----------
  [AMDGPU] Fix whole-wave function prologue to set EXEC to -1 (#207781)

A whole-wave function body must run with all lanes on. With no WWM
spills the prologue emitted `S_XOR_SAVEEXEC`, giving `EXEC` =
`~entryEXEC`



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