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-rw-r--r--include/llvm/Support/StandardPasses.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/llvm/Support/StandardPasses.h b/include/llvm/Support/StandardPasses.h
index a608f2ceab..7e32f1fbae 100644
--- a/include/llvm/Support/StandardPasses.h
+++ b/include/llvm/Support/StandardPasses.h
@@ -145,6 +145,7 @@ namespace llvm {
PM->add(createLoopUnswitchPass(OptimizeSize || OptimizationLevel < 3));
PM->add(createInstructionCombiningPass());
PM->add(createIndVarSimplifyPass()); // Canonicalize indvars
+ PM->add(createLoopIdiomPass()); // Recognize idioms like memset.
PM->add(createLoopDeletionPass()); // Delete dead loops
if (UnrollLoops)
PM->add(createLoopUnrollPass()); // Unroll small loops