Move ipsccp pass earlier to clean up obvious bogosities

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30232 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/gccld/GenerateCode.cpp b/tools/gccld/GenerateCode.cpp
index 61bcdfae717ea063fa92be2bf068ad9ceadd4b51..38b3d418451e03dd998c92336bb9f0e1829dcb73 100644 (file)
--- a/tools/gccld/GenerateCode.cpp
+++ b/tools/gccld/GenerateCode.cpp
@@ -220,6 +220,11 @@ int llvm::GenerateBytecode(Module *M, int StripLevel, bool Internalize,
     // internal.
     addPass(Passes, createInternalizePass(Internalize));
 
+    // Propagate constants at call sites into the functions they call.  This
+    // opens opportunities for globalopt (and inlining) by substituting function
+    // pointers passed as arguments to direct uses of functions.
+    addPass(Passes, createIPSCCPPass());
+    
     // Now that we internalized some globals, see if we can hack on them!
     addPass(Passes, createGlobalOptimizerPass());
 
@@ -227,9 +232,6 @@ int llvm::GenerateBytecode(Module *M, int StripLevel, bool Internalize,
     // keep one copy of each constant...
     addPass(Passes, createConstantMergePass());
 
-    // Propagate constants at call sites into the functions they call.
-    addPass(Passes, createIPSCCPPass());
-
     // Remove unused arguments from functions...
     addPass(Passes, createDeadArgEliminationPass());