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-rw-r--r--lib/Transforms/NaCl/PNaClABISimplify.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Transforms/NaCl/PNaClABISimplify.cpp b/lib/Transforms/NaCl/PNaClABISimplify.cpp
index 056b0ae651..81fce8ce13 100644
--- a/lib/Transforms/NaCl/PNaClABISimplify.cpp
+++ b/lib/Transforms/NaCl/PNaClABISimplify.cpp
@@ -67,6 +67,11 @@ void llvm::PNaClABISimplifyAddPostOptPasses(PassManager &PM) {
PM.add(createPromoteI1OpsPass());
+ // Optimization passes and ExpandByVal introduce
+ // memset/memcpy/memmove intrinsics with a 64-bit size argument.
+ // This pass converts those arguments to 32-bit.
+ PM.add(createCanonicalizeMemIntrinsicsPass());
+
// We place StripMetadata after optimization passes because
// optimizations depend on the metadata.
PM.add(createStripMetadataPass());