Add a pass to llvm to rewrite the bitcode in an

arch specific way to mimic the native calling convention.
The goal is to make this good enough for ppapi  interfaces.

Review URL: https://chromiumcodereview.appspot.com/10912128

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/CodeGen/Passes.cpp b/lib/CodeGen/Passes.cpp
index 56526f2732..d68c6740f8 100644
--- a/lib/CodeGen/Passes.cpp
+++ b/lib/CodeGen/Passes.cpp
@@ -352,6 +352,16 @@ void TargetPassConfig::addIRPasses() {
   addPass(createTypeBasedAliasAnalysisPass());
   addPass(createBasicAliasAnalysisPass());
 
+  // @LOCALMOD-START
+  addPass(createNaClCcRewritePass(TM->getTargetLowering()));
+  // TODO: consider adding a cleanup pass, e.g. constant propagation
+  // Note: we run this before the verfier step because it may cause
+  // a *temporary* inconsistency:
+  //   A function may have been rewritting before we are rewriting
+  //   its callers - which would lead to a parameter mismatch complaint
+  //   from the verifier.
+  // @LOCALMOD-END
+
   // Before running any passes, run the verifier to determine if the input
   // coming from the front-end and/or optimizer is valid.
   if (!DisableVerify)