Move constant merging pass earlier
Include the SCCP pass in gccas
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2410 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/gccas/gccas.cpp b/tools/gccas/gccas.cpp
index ef502c2..ce22ccd 100644
--- a/tools/gccas/gccas.cpp
+++ b/tools/gccas/gccas.cpp
@@ -14,6 +14,7 @@
#include "llvm/Transforms/LevelChange.h"
#include "llvm/Transforms/ConstantMerge.h"
#include "llvm/Transforms/ChangeAllocations.h"
+#include "llvm/Transforms/Scalar/ConstantProp.h"
#include "llvm/Transforms/Scalar/DCE.h"
#include "llvm/Transforms/Scalar/GCSE.h"
#include "llvm/Transforms/Scalar/IndVarSimplify.h"
@@ -73,6 +74,7 @@
//
PassManager Passes;
Passes.add(createFunctionResolvingPass()); // Resolve (...) functions
+ Passes.add(createConstantMergePass()); // Merge dup global constants
Passes.add(createDeadInstEliminationPass()); // Remove Dead code/vars
Passes.add(createRaiseAllocationsPass()); // call %malloc -> malloc inst
Passes.add(createCleanupGCCOutputPass()); // Fix gccisms
@@ -80,9 +82,9 @@
if (!StopAtLevelRaise) {
Passes.add(createRaisePointerReferencesPass()); // Eliminate casts
Passes.add(createPromoteMemoryToRegister()); // Promote alloca's to regs
- Passes.add(createConstantMergePass()); // Merge dup global consts
Passes.add(createInstructionCombiningPass()); // Combine silly seq's
Passes.add(createDeadCodeEliminationPass()); // Remove Dead code/vars
+ Passes.add(createSCCPPass()); // Constant prop with SCCP
Passes.add(createGCSEPass()); // Remove common subexprs
}
Passes.add(new WriteBytecodePass(&Out)); // Write bytecode to file...