[all-commits] [llvm/llvm-project] 74e469: [LTO] enable `ObjCARCContractPass` only on optimiz...

[Peter Rong via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 74e4694b8cbdb918abd4645e2c5027359904fb92
      https://github.com/llvm/llvm-project/commit/74e4694b8cbdb918abd4645e2c5027359904fb92
  Author: Peter Rong <peterrong96 at gmail.com>
  Date:   2024-08-09 (Fri, 09 Aug 2024)

  Changed paths:
    M clang/lib/CodeGen/BackendUtil.cpp
    A clang/test/CodeGen/thinlto-distributed-objc-contract-pass.ll
    M lld/MachO/LTO.cpp
    M llvm/include/llvm/Analysis/ObjCARCAnalysisUtils.h
    M llvm/lib/CodeGen/TargetPassConfig.cpp
    M llvm/lib/LTO/LTOCodeGenerator.cpp
    M llvm/lib/LTO/ThinLTOCodeGenerator.cpp
    M llvm/lib/Transforms/ObjCARC/ObjCARCContract.cpp
    M llvm/test/CodeGen/AArch64/O3-pipeline.ll
    M llvm/test/CodeGen/AMDGPU/llc-pipeline.ll
    M llvm/test/CodeGen/ARM/O3-pipeline.ll
    M llvm/test/CodeGen/LoongArch/opt-pipeline.ll
    M llvm/test/CodeGen/M68k/pipeline.ll
    M llvm/test/CodeGen/PowerPC/O3-pipeline.ll
    M llvm/test/CodeGen/RISCV/O3-pipeline.ll
    M llvm/test/CodeGen/X86/opt-pipeline.ll

  Log Message:
  -----------
  [LTO] enable `ObjCARCContractPass` only on optimized build  (#101114)

\#92331 tried to make `ObjCARCContractPass` by default, but it caused a
regression on O0 builds and was reverted.
This patch trys to bring that back by:

1. reverts the
[revert](https://github.com/llvm/llvm-project/commit/1579e9ca9ce17364963861517fecf13b00fe4d8a).
2. `createObjCARCContractPass` only on optimized builds.

Tests are updated to refelect the changes. Specifically, all `O0` tests
should not include `ObjCARCContractPass`

Signed-off-by: Peter Rong <PeterRong at meta.com>



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