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-rw-r--r--tools/opt/opt.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index 37637ca628..ca82061786 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -451,6 +451,8 @@ static void AddOptimizationPasses(PassManagerBase &MPM,FunctionPassManager &FPM,
Builder.populateFunctionPassManager(FPM);
Builder.populateModulePassManager(MPM);
+
+ Builder.LoopVectorize = OptLevel > 1 && SizeLevel < 2;
}
static void AddStandardCompilePasses(PassManagerBase &PM) {