llvm-6502/include/llvm/LinkAllPasses.h
Jingyue Wu 9cecacd16a Simplify n-ary adds by reassociation
Summary:
This transformation reassociates a n-ary add so that the add can partially reuse
existing instructions. For example, this pass can simplify

  void foo(int a, int b) {
    bar(a + b);
    bar((a + 2) + b);
  }

to

  void foo(int a, int b) {
    int t = a + b;
    bar(t);
    bar(t + 2);
  }

saving one add instruction.

Fixes PR22357 (https://llvm.org/bugs/show_bug.cgi?id=22357).

Test Plan: nary-add.ll

Reviewers: broune, dberlin, hfinkel, meheff, sanjoy, atrick

Reviewed By: sanjoy, atrick

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8950

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234855 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-14 04:59:22 +00:00

192 lines
8.3 KiB
C++

//===- llvm/LinkAllPasses.h ------------ Reference All Passes ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This header file pulls in all transformation and analysis passes for tools
// like opt and bugpoint that need this functionality.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LINKALLPASSES_H
#define LLVM_LINKALLPASSES_H
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/AliasSetTracker.h"
#include "llvm/Analysis/CallPrinter.h"
#include "llvm/Analysis/DomPrinter.h"
#include "llvm/Analysis/IntervalPartition.h"
#include "llvm/Analysis/Lint.h"
#include "llvm/Analysis/Passes.h"
#include "llvm/Analysis/PostDominators.h"
#include "llvm/Analysis/RegionPass.h"
#include "llvm/Analysis/RegionPrinter.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRPrintingPasses.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/Instrumentation.h"
#include "llvm/Transforms/ObjCARC.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Utils/SymbolRewriter.h"
#include "llvm/Transforms/Utils/UnifyFunctionExitNodes.h"
#include "llvm/Transforms/Vectorize.h"
#include "llvm/Support/Valgrind.h"
#include <cstdlib>
namespace {
struct ForcePassLinking {
ForcePassLinking() {
// We must reference the passes in such a way that compilers will not
// delete it all as dead code, even with whole program optimization,
// yet is effectively a NO-OP. As the compiler isn't smart enough
// to know that getenv() never returns -1, this will do the job.
if (std::getenv("bar") != (char*) -1)
return;
(void) llvm::createAAEvalPass();
(void) llvm::createAggressiveDCEPass();
(void) llvm::createBitTrackingDCEPass();
(void) llvm::createAliasAnalysisCounterPass();
(void) llvm::createAliasDebugger();
(void) llvm::createArgumentPromotionPass();
(void) llvm::createAlignmentFromAssumptionsPass();
(void) llvm::createBasicAliasAnalysisPass();
(void) llvm::createLibCallAliasAnalysisPass(nullptr);
(void) llvm::createScalarEvolutionAliasAnalysisPass();
(void) llvm::createTypeBasedAliasAnalysisPass();
(void) llvm::createScopedNoAliasAAPass();
(void) llvm::createBoundsCheckingPass();
(void) llvm::createBreakCriticalEdgesPass();
(void) llvm::createCallGraphPrinterPass();
(void) llvm::createCallGraphViewerPass();
(void) llvm::createCFGSimplificationPass();
(void) llvm::createCFLAliasAnalysisPass();
(void) llvm::createStructurizeCFGPass();
(void) llvm::createConstantMergePass();
(void) llvm::createConstantPropagationPass();
(void) llvm::createCostModelAnalysisPass();
(void) llvm::createDeadArgEliminationPass();
(void) llvm::createDeadCodeEliminationPass();
(void) llvm::createDeadInstEliminationPass();
(void) llvm::createDeadStoreEliminationPass();
(void) llvm::createDependenceAnalysisPass();
(void) llvm::createDivergenceAnalysisPass();
(void) llvm::createDomOnlyPrinterPass();
(void) llvm::createDomPrinterPass();
(void) llvm::createDomOnlyViewerPass();
(void) llvm::createDomViewerPass();
(void) llvm::createGCOVProfilerPass();
(void) llvm::createInstrProfilingPass();
(void) llvm::createFunctionInliningPass();
(void) llvm::createAlwaysInlinerPass();
(void) llvm::createGlobalDCEPass();
(void) llvm::createGlobalOptimizerPass();
(void) llvm::createGlobalsModRefPass();
(void) llvm::createIPConstantPropagationPass();
(void) llvm::createIPSCCPPass();
(void) llvm::createInductiveRangeCheckEliminationPass();
(void) llvm::createIndVarSimplifyPass();
(void) llvm::createInstructionCombiningPass();
(void) llvm::createInternalizePass();
(void) llvm::createLCSSAPass();
(void) llvm::createLICMPass();
(void) llvm::createLazyValueInfoPass();
(void) llvm::createLoopExtractorPass();
(void)llvm::createLoopInterchangePass();
(void) llvm::createLoopSimplifyPass();
(void) llvm::createLoopStrengthReducePass();
(void) llvm::createLoopRerollPass();
(void) llvm::createLoopUnrollPass();
(void) llvm::createLoopUnswitchPass();
(void) llvm::createLoopIdiomPass();
(void) llvm::createLoopRotatePass();
(void) llvm::createLowerExpectIntrinsicPass();
(void) llvm::createLowerInvokePass();
(void) llvm::createLowerSwitchPass();
(void) llvm::createNaryReassociatePass();
(void) llvm::createNoAAPass();
(void) llvm::createObjCARCAliasAnalysisPass();
(void) llvm::createObjCARCAPElimPass();
(void) llvm::createObjCARCExpandPass();
(void) llvm::createObjCARCContractPass();
(void) llvm::createObjCARCOptPass();
(void) llvm::createPAEvalPass();
(void) llvm::createPromoteMemoryToRegisterPass();
(void) llvm::createDemoteRegisterToMemoryPass();
(void) llvm::createPruneEHPass();
(void) llvm::createPostDomOnlyPrinterPass();
(void) llvm::createPostDomPrinterPass();
(void) llvm::createPostDomOnlyViewerPass();
(void) llvm::createPostDomViewerPass();
(void) llvm::createReassociatePass();
(void) llvm::createRegionInfoPass();
(void) llvm::createRegionOnlyPrinterPass();
(void) llvm::createRegionOnlyViewerPass();
(void) llvm::createRegionPrinterPass();
(void) llvm::createRegionViewerPass();
(void) llvm::createSCCPPass();
(void) llvm::createScalarReplAggregatesPass();
(void) llvm::createSingleLoopExtractorPass();
(void) llvm::createStripSymbolsPass();
(void) llvm::createStripNonDebugSymbolsPass();
(void) llvm::createStripDeadDebugInfoPass();
(void) llvm::createStripDeadPrototypesPass();
(void) llvm::createTailCallEliminationPass();
(void) llvm::createJumpThreadingPass();
(void) llvm::createUnifyFunctionExitNodesPass();
(void) llvm::createInstCountPass();
(void) llvm::createConstantHoistingPass();
(void) llvm::createCodeGenPreparePass();
(void) llvm::createEarlyCSEPass();
(void) llvm::createMergedLoadStoreMotionPass();
(void) llvm::createGVNPass();
(void) llvm::createMemCpyOptPass();
(void) llvm::createLoopDeletionPass();
(void) llvm::createPostDomTree();
(void) llvm::createInstructionNamerPass();
(void) llvm::createMetaRenamerPass();
(void) llvm::createFunctionAttrsPass();
(void) llvm::createMergeFunctionsPass();
(void) llvm::createPrintModulePass(*(llvm::raw_ostream*)nullptr);
(void) llvm::createPrintFunctionPass(*(llvm::raw_ostream*)nullptr);
(void) llvm::createPrintBasicBlockPass(*(llvm::raw_ostream*)nullptr);
(void) llvm::createModuleDebugInfoPrinterPass();
(void) llvm::createPartialInliningPass();
(void) llvm::createLintPass();
(void) llvm::createSinkingPass();
(void) llvm::createLowerAtomicPass();
(void) llvm::createCorrelatedValuePropagationPass();
(void) llvm::createMemDepPrinter();
(void) llvm::createInstructionSimplifierPass();
(void) llvm::createLoopVectorizePass();
(void) llvm::createSLPVectorizerPass();
(void) llvm::createBBVectorizePass();
(void) llvm::createPartiallyInlineLibCallsPass();
(void) llvm::createScalarizerPass();
(void) llvm::createSeparateConstOffsetFromGEPPass();
(void) llvm::createRewriteSymbolsPass();
(void) llvm::createStraightLineStrengthReducePass();
(void) llvm::createMemDerefPrinter();
(void) llvm::createFloat2IntPass();
(void)new llvm::IntervalPartition();
(void)new llvm::ScalarEvolution();
((llvm::Function*)nullptr)->viewCFGOnly();
llvm::RGPassManager RGM;
((llvm::RegionPass*)nullptr)->runOnRegion((llvm::Region*)nullptr, RGM);
llvm::AliasSetTracker X(*(llvm::AliasAnalysis*)nullptr);
X.add(nullptr, 0, llvm::AAMDNodes()); // for -print-alias-sets
(void) llvm::AreStatisticsEnabled();
(void) llvm::sys::RunningOnValgrind();
}
} ForcePassLinking; // Force link by creating a global definition.
}
#endif