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Fix opt crash in addVectorPasses when TargetMachine is null #175

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Merged
gmh5225 merged 1 commit into from
Jul 24, 2026
+2 −1
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Fix opt crash in addVectorPasses when TargetMachine is null #175

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3 changes: 2 additions & 1 deletion llvm/lib/Passes/PassBuilderPipelines.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1162,7 +1162,8 @@ PassBuilder::buildModuleSimplificationPipeline(OptimizationLevel Level,
void PassBuilder::addVectorPasses(OptimizationLevel Level,
FunctionPassManager &FPM, bool IsFullLTO) {
// Disable vector passes on windows.
if (TM->getTargetTriple().isOSWindows())
// TM may be null when opt is run without a target triple (e.g. empty IR).
if (TM && TM->getTargetTriple().isOSWindows())
return;

FPM.addPass(LoopVectorizePass(
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