summaryrefslogtreecommitdiff
path: root/tools/llvm-ld/Optimize.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'tools/llvm-ld/Optimize.cpp')
-rw-r--r--tools/llvm-ld/Optimize.cpp130
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);
-}
-
-}