[all-commits] [llvm/llvm-project] 2f2ac3: DAG: Avoid stack usage in bitcast operand promotio...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2f2ac3de69dde902c9fe84bdd7faeee320498130
      https://github.com/llvm/llvm-project/commit/2f2ac3de69dde902c9fe84bdd7faeee320498130
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-02-04 (Tue, 04 Feb 2025)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
    M llvm/test/CodeGen/AMDGPU/bitcast_vector_bigint.ll
    M llvm/test/CodeGen/AMDGPU/buffer-fat-pointers-contents-legalization.ll
    M llvm/test/CodeGen/AMDGPU/ctpop16.ll
    M llvm/test/CodeGen/AMDGPU/kernel-args.ll
    M llvm/test/CodeGen/AMDGPU/load-constant-i16.ll
    M llvm/test/CodeGen/AMDGPU/load-constant-i8.ll
    M llvm/test/CodeGen/AMDGPU/load-global-i16.ll
    M llvm/test/CodeGen/AMDGPU/load-global-i8.ll
    M llvm/test/CodeGen/AMDGPU/min.ll
    M llvm/test/CodeGen/AMDGPU/shl.ll
    M llvm/test/CodeGen/AMDGPU/sra.ll

  Log Message:
  -----------
  DAG: Avoid stack usage in bitcast operand promotion to legal vector (#125637)

Fix introducing stack usage if a bitcast source operand is an illegal
integer type cast to a legal vector type. This should cover more
situations, but this is the first one I noticed.



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