[llvm] [BranchFolding] Avoid moving blocks to fall through to an indirect target of inline asm (PR #152916)
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Sun Aug 10 06:47:00 PDT 2025
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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->
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You can test this locally with the following command:
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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp -- llvm/lib/CodeGen/BranchFolding.cpp llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/CodeGen/BranchFolding.cpp b/llvm/lib/CodeGen/BranchFolding.cpp
index d49c4b4a5..d1f83810c 100644
--- a/llvm/lib/CodeGen/BranchFolding.cpp
+++ b/llvm/lib/CodeGen/BranchFolding.cpp
@@ -1794,8 +1794,7 @@ ReoptimizeBlock:
// block.
MachineBasicBlock *PrevTBB = nullptr, *PrevFBB = nullptr;
SmallVector<MachineOperand, 4> PrevCond;
- if (FallThrough != MF.end() &&
- !FallThrough->isEHPad() &&
+ if (FallThrough != MF.end() && !FallThrough->isEHPad() &&
!FallThrough->isInlineAsmBrIndirectTarget() &&
!TII->analyzeBranch(PrevBB, PrevTBB, PrevFBB, PrevCond, true) &&
PrevBB.isSuccessor(&*FallThrough)) {
``````````
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https://github.com/llvm/llvm-project/pull/152916
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