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Diffstat (limited to 'tools/llvm-ld/Optimize.cpp')
-rw-r--r-- | tools/llvm-ld/Optimize.cpp | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/tools/llvm-ld/Optimize.cpp b/tools/llvm-ld/Optimize.cpp deleted file mode 100644 index 7f3f90014f..0000000000 --- a/tools/llvm-ld/Optimize.cpp +++ /dev/null @@ -1,130 +0,0 @@ -//===- Optimize.cpp - Optimize a complete program -------------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file implements all optimization of the linked module for llvm-ld. -// -//===----------------------------------------------------------------------===// - -#include "llvm/Module.h" -#include "llvm/PassManager.h" -#include "llvm/Analysis/Verifier.h" -#include "llvm/Support/CommandLine.h" -#include "llvm/Support/raw_ostream.h" -#include "llvm/Support/DynamicLibrary.h" -#include "llvm/Target/TargetData.h" -#include "llvm/Target/TargetMachine.h" -#include "llvm/Support/PassNameParser.h" -#include "llvm/Support/PluginLoader.h" -#include "llvm/Transforms/IPO.h" -#include "llvm/Transforms/IPO/PassManagerBuilder.h" -#include "llvm/Transforms/Scalar.h" -using namespace llvm; - -// Pass Name Options as generated by the PassNameParser -static cl::list<const PassInfo*, bool, PassNameParser> - OptimizationList(cl::desc("Optimizations available:")); - -//Don't verify at the end -static cl::opt<bool> DontVerify("disable-verify", cl::ReallyHidden); - -static cl::opt<bool> DisableInline("disable-inlining", - cl::desc("Do not run the inliner pass")); - -static cl::opt<bool> -DisableOptimizations("disable-opt", - cl::desc("Do not run any optimization passes")); - -static cl::opt<bool> DisableInternalize("disable-internalize", - cl::desc("Do not mark all symbols as internal")); - -static cl::opt<bool> VerifyEach("verify-each", - cl::desc("Verify intermediate results of all passes")); - -static cl::alias ExportDynamic("export-dynamic", - cl::aliasopt(DisableInternalize), - cl::desc("Alias for -disable-internalize")); - -static cl::opt<bool> Strip("strip-all", - cl::desc("Strip all symbol info from executable")); - -static cl::alias A0("s", cl::desc("Alias for --strip-all"), - cl::aliasopt(Strip)); - -static cl::opt<bool> StripDebug("strip-debug", - cl::desc("Strip debugger symbol info from executable")); - -static cl::alias A1("S", cl::desc("Alias for --strip-debug"), - cl::aliasopt(StripDebug)); - -// A utility function that adds a pass to the pass manager but will also add -// a verifier pass after if we're supposed to verify. -static inline void addPass(PassManager &PM, Pass *P) { - // Add the pass to the pass manager... - PM.add(P); - - // If we are verifying all of the intermediate steps, add the verifier... - if (VerifyEach) - PM.add(createVerifierPass()); -} - -namespace llvm { -/// Optimize - Perform link time optimizations. This will run the scalar -/// optimizations, any loaded plugin-optimization modules, and then the -/// inter-procedural optimizations if applicable. -void Optimize(Module *M) { - - // Instantiate the pass manager to organize the passes. - PassManager Passes; - - // If we're verifying, start off with a verification pass. - if (VerifyEach) - Passes.add(createVerifierPass()); - - // Add an appropriate TargetData instance for this module... - addPass(Passes, new TargetData(M)); - - if (!DisableOptimizations) - PassManagerBuilder().populateLTOPassManager(Passes, !DisableInternalize, - !DisableInline); - - // If the -s or -S command line options were specified, strip the symbols out - // of the resulting program to make it smaller. -s and -S are GNU ld options - // that we are supporting; they alias -strip-all and -strip-debug. - if (Strip || StripDebug) - addPass(Passes, createStripSymbolsPass(StripDebug && !Strip)); - - // Create a new optimization pass for each one specified on the command line - std::auto_ptr<TargetMachine> target; - for (unsigned i = 0; i < OptimizationList.size(); ++i) { - const PassInfo *Opt = OptimizationList[i]; - if (Opt->getNormalCtor()) - addPass(Passes, Opt->getNormalCtor()()); - else - errs() << "llvm-ld: cannot create pass: " << Opt->getPassName() - << "\n"; - } - - // The user's passes may leave cruft around. Clean up after them them but - // only if we haven't got DisableOptimizations set - if (!DisableOptimizations) { - addPass(Passes, createInstructionCombiningPass()); - addPass(Passes, createCFGSimplificationPass()); - addPass(Passes, createAggressiveDCEPass()); - addPass(Passes, createGlobalDCEPass()); - } - - // Make sure everything is still good. - if (!DontVerify) - Passes.add(createVerifierPass()); - - // Run our queue of passes all at once now, efficiently. - Passes.run(*M); -} - -} |