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Move constant merging pass earlier 

Include the SCCP pass in gccas

llvm-svn: 2410
This commit is contained in:
Chris Lattner 2002-04-29 20:11:38 +00:00
parent 767210feb7
commit 0fb0022f68
1 changed files with 3 additions and 1 deletions
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4
llvm/tools/gccas/gccas.cpp
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@ -14,6 +14,7 @@
#include "llvm/Transforms/LevelChange.h" #include "llvm/Transforms/LevelChange.h"
#include "llvm/Transforms/ConstantMerge.h" #include "llvm/Transforms/ConstantMerge.h"
#include "llvm/Transforms/ChangeAllocations.h" #include "llvm/Transforms/ChangeAllocations.h"
#include "llvm/Transforms/Scalar/ConstantProp.h"
#include "llvm/Transforms/Scalar/DCE.h" #include "llvm/Transforms/Scalar/DCE.h"
#include "llvm/Transforms/Scalar/GCSE.h" #include "llvm/Transforms/Scalar/GCSE.h"
#include "llvm/Transforms/Scalar/IndVarSimplify.h" #include "llvm/Transforms/Scalar/IndVarSimplify.h"
@ -73,6 +74,7 @@ int main(int argc, char **argv) {
// //
PassManager Passes; PassManager Passes;
Passes.add(createFunctionResolvingPass()); // Resolve (...) functions Passes.add(createFunctionResolvingPass()); // Resolve (...) functions
Passes.add(createConstantMergePass()); // Merge dup global constants
Passes.add(createDeadInstEliminationPass()); // Remove Dead code/vars Passes.add(createDeadInstEliminationPass()); // Remove Dead code/vars
Passes.add(createRaiseAllocationsPass()); // call %malloc -> malloc inst Passes.add(createRaiseAllocationsPass()); // call %malloc -> malloc inst
Passes.add(createCleanupGCCOutputPass()); // Fix gccisms Passes.add(createCleanupGCCOutputPass()); // Fix gccisms
@ -80,9 +82,9 @@ int main(int argc, char **argv) {
if (!StopAtLevelRaise) { if (!StopAtLevelRaise) {
Passes.add(createRaisePointerReferencesPass()); // Eliminate casts Passes.add(createRaisePointerReferencesPass()); // Eliminate casts
Passes.add(createPromoteMemoryToRegister()); // Promote alloca's to regs Passes.add(createPromoteMemoryToRegister()); // Promote alloca's to regs
Passes.add(createConstantMergePass()); // Merge dup global consts
Passes.add(createInstructionCombiningPass()); // Combine silly seq's Passes.add(createInstructionCombiningPass()); // Combine silly seq's
Passes.add(createDeadCodeEliminationPass()); // Remove Dead code/vars Passes.add(createDeadCodeEliminationPass()); // Remove Dead code/vars
Passes.add(createSCCPPass()); // Constant prop with SCCP
Passes.add(createGCSEPass()); // Remove common subexprs Passes.add(createGCSEPass()); // Remove common subexprs
} }
Passes.add(new WriteBytecodePass(&Out)); // Write bytecode to file... Passes.add(new WriteBytecodePass(&Out)); // Write bytecode to file...