Mercurial > projects > ldc
view gen/optimizer.cpp @ 304:3ebc136702dd trunk
[svn r325] Removed dead code.
Added license info to code from GDC (David Friedman permitted us to use the files under the Artistic License).
Added asmLabel check to DtoGoto to avoid jumping into inline asm. Doesn't work currently as LabelDsymbol::asmLabel is never set to true.
author | ChristianK |
---|---|
date | Wed, 25 Jun 2008 23:42:38 +0200 |
parents | 665b81613475 |
children | e235b80c92bc |
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#include "llvm/PassManager.h" #include "llvm/LinkAllPasses.h" #include "llvm/Analysis/LoopPass.h" #include "llvm/Target/TargetData.h" using namespace llvm; ////////////////////////////////////////////////////////////////////////////////////////// // this function runs some or all of the std-compile-opts passes depending on the // optimization level given. void llvmdc_optimize_module(Module* m, char lvl, bool doinline) { if (!doinline && lvl < 0) return; PassManager pm; pm.add(new TargetData(m)); // -O0 if (lvl >= 0) { //pm.add(createStripDeadPrototypesPass()); pm.add(createGlobalDCEPass()); } // -O1 if (lvl >= 1) { pm.add(createRaiseAllocationsPass()); pm.add(createCFGSimplificationPass()); pm.add(createPromoteMemoryToRegisterPass()); pm.add(createGlobalOptimizerPass()); pm.add(createGlobalDCEPass()); } // -O2 if (lvl >= 2) { pm.add(createIPConstantPropagationPass()); pm.add(createDeadArgEliminationPass()); pm.add(createInstructionCombiningPass()); pm.add(createCFGSimplificationPass()); pm.add(createPruneEHPass()); } // -inline if (doinline) { pm.add(createFunctionInliningPass()); } // -O3 if (lvl >= 3) { pm.add(createArgumentPromotionPass()); pm.add(createTailDuplicationPass()); pm.add(createInstructionCombiningPass()); pm.add(createCFGSimplificationPass()); pm.add(createScalarReplAggregatesPass()); pm.add(createInstructionCombiningPass()); pm.add(createCondPropagationPass()); pm.add(createTailCallEliminationPass()); pm.add(createCFGSimplificationPass()); pm.add(createReassociatePass()); pm.add(createLoopRotatePass()); pm.add(createLICMPass()); pm.add(createLoopUnswitchPass()); pm.add(createInstructionCombiningPass()); pm.add(createIndVarSimplifyPass()); pm.add(createLoopUnrollPass()); pm.add(createInstructionCombiningPass()); pm.add(createGVNPass()); pm.add(createSCCPPass()); pm.add(createInstructionCombiningPass()); pm.add(createCondPropagationPass()); pm.add(createDeadStoreEliminationPass()); pm.add(createAggressiveDCEPass()); pm.add(createCFGSimplificationPass()); pm.add(createSimplifyLibCallsPass()); pm.add(createDeadTypeEliminationPass()); pm.add(createConstantMergePass()); } // level -O4 and -O5 are linktime optimizations pm.run(*m); }