[all-commits] [llvm/llvm-project] 69b8cf: [SandboxVec][BottomUpVec] Add cost estimation and ...

[vporpo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 69b8cf4f0621b359b487ad41887c20984be53a34
      https://github.com/llvm/llvm-project/commit/69b8cf4f0621b359b487ad41887c20984be53a34
  Author: vporpo <vporpodas at google.com>
  Date:   2025-02-08 (Sat, 08 Feb 2025)

  Changed paths:
    M llvm/include/llvm/SandboxIR/Tracker.h
    A llvm/include/llvm/Transforms/Vectorize/SandboxVectorizer/Passes/TransactionAcceptOrRevert.h
    A llvm/include/llvm/Transforms/Vectorize/SandboxVectorizer/Passes/TransactionAlwaysAccept.h
    M llvm/lib/SandboxIR/Tracker.cpp
    M llvm/lib/Transforms/Vectorize/CMakeLists.txt
    M llvm/lib/Transforms/Vectorize/SandboxVectorizer/DependencyGraph.cpp
    M llvm/lib/Transforms/Vectorize/SandboxVectorizer/Passes/BottomUpVec.cpp
    M llvm/lib/Transforms/Vectorize/SandboxVectorizer/Passes/PassRegistry.def
    A llvm/lib/Transforms/Vectorize/SandboxVectorizer/Passes/TransactionAcceptOrRevert.cpp
    M llvm/lib/Transforms/Vectorize/SandboxVectorizer/SandboxVectorizer.cpp
    M llvm/lib/Transforms/Vectorize/SandboxVectorizer/SandboxVectorizerPassBuilder.cpp
    A llvm/test/Transforms/SandboxVectorizer/X86/simple_cost_test.ll
    M llvm/test/Transforms/SandboxVectorizer/bottomup_basic.ll
    M llvm/test/Transforms/SandboxVectorizer/bottomup_seed_slice.ll
    M llvm/test/Transforms/SandboxVectorizer/bottomup_seed_slice_pow2.ll
    M llvm/test/Transforms/SandboxVectorizer/cross_bbs.ll
    M llvm/test/Transforms/SandboxVectorizer/default_pass_pipeline.ll
    M llvm/test/Transforms/SandboxVectorizer/pack.ll
    M llvm/test/Transforms/SandboxVectorizer/repeated_instrs.ll
    M llvm/test/Transforms/SandboxVectorizer/scheduler.ll
    M llvm/test/Transforms/SandboxVectorizer/special_opcodes.ll
    M llvm/unittests/SandboxIR/TrackerTest.cpp

  Log Message:
  -----------
  [SandboxVec][BottomUpVec] Add cost estimation and tr-accept-or-revert pass (#126325)

The TransactionAcceptOrRevert pass is the final pass in the Sandbox
Vectorizer's default pass pipeline. It's job is to check the cost
before/after vectorization and accept or revert the IR to its original
state.

Since we are now starting the transaction in BottomUpVec, tests that run
a custom pipeline need to accept the transaction. This is done with the
help of the TransactionAlwaysAccept pass (tr-accept).



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