PNaCl: Enable the ReplacePtrsWithInts pass

BUG=https://code.google.com/p/nativeclient/issues/detail?id=3343
TEST=PNaCl toolchain trybots + GCC torture tests + LLVM test suite

Review URL: https://codereview.chromium.org/15767004

1 files changed, 5 insertions, 2 deletions

diff --git a/lib/Transforms/NaCl/PNaClABISimplify.cpp b/lib/Transforms/NaCl/PNaClABISimplify.cpp
index 9d7713139a..37504517d6 100644
--- a/lib/Transforms/NaCl/PNaClABISimplify.cpp
+++ b/lib/Transforms/NaCl/PNaClABISimplify.cpp
@@ -57,9 +57,12 @@ void llvm::PNaClABISimplifyAddPostOptPasses(PassManager &PM) {
   PM.add(createFlattenGlobalsPass());
 
   // We should not place arbitrary passes after ExpandConstantExpr
-  // because they might reintroduce ConstantExprs.  However,
+  // because they might reintroduce ConstantExprs.
+  PM.add(createExpandConstantExprPass());
   // ExpandGetElementPtr must follow ExpandConstantExpr to expand the
   // getelementptr instructions it creates.
-  PM.add(createExpandConstantExprPass());
   PM.add(createExpandGetElementPtrPass());
+  // ReplacePtrsWithInts assumes that getelementptr instructions and
+  // ConstantExprs have already been expanded out.
+  PM.add(createReplacePtrsWithIntsPass());
 }