Run tailcall elimination in a more logical place

llvm-svn: 10402
diff --git a/llvm/tools/gccas/gccas.cpp b/llvm/tools/gccas/gccas.cpp
index c7a2204..40abcca 100644
--- a/llvm/tools/gccas/gccas.cpp
+++ b/llvm/tools/gccas/gccas.cpp
@@ -74,11 +74,11 @@
   addPass(PM, createTailDuplicationPass());      // Simplify cfg by copying code
   addPass(PM, createCFGSimplificationPass());    // Merge & remove BBs
   addPass(PM, createScalarReplAggregatesPass()); // Break up aggregate allocas
-  addPass(PM, createTailCallEliminationPass());  // Eliminate tail calls
   addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
 
   addPass(PM, createReassociatePass());          // Reassociate expressions
   addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
+  addPass(PM, createTailCallEliminationPass());  // Eliminate tail calls
   addPass(PM, createCFGSimplificationPass());    // Merge & remove BBs
   addPass(PM, createLICMPass());                 // Hoist loop invariants
   addPass(PM, createLoadValueNumberingPass());   // GVN for load instructions