diff --git a/llvm/tools/gccld/GenerateCode.cpp b/llvm/tools/gccld/GenerateCode.cpp
index 84eba1b..ee9e42c 100644
--- a/llvm/tools/gccld/GenerateCode.cpp
+++ b/llvm/tools/gccld/GenerateCode.cpp
@@ -170,7 +170,8 @@
     addPass(Passes, createConstantMergePass());
 
     // Propagate constants at call sites into the functions they call.
-    addPass(Passes, createIPConstantPropagationPass());
+    addPass(Passes, createIPSCCPPass());
+    addPass(Passes, createCFGSimplificationPass());
 
     // Remove unused arguments from functions...
     addPass(Passes, createDeadArgEliminationPass());