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opt: Add -std-link-opts argument, matches llvm-ld's optimizations.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76199 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2009-07-17 18:09:39 +00:00
parent c5ec8a78ea
commit adc82888b5
1 changed files with 39 additions and 6 deletions
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45
tools/opt/opt.cpp
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@ -81,10 +81,18 @@ 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>
StandardCompileOpts("std-compile-opts",
cl::desc("Include the standard compile time optimizations"));
static cl::opt<bool>
StandardLinkOpts("std-link-opts",
cl::desc("Include the standard link time optimizations"));
static cl::opt<bool>
OptLevelO1("O1",
cl::desc("Optimization level 1. Similar to llvm-gcc -O1"));
@ -311,6 +319,20 @@ void AddStandardCompilePasses(PassManager &PM) {
InliningPass);
}
void AddStandardLinkPasses(PassManager &PM) {
PM.add(createVerifierPass()); // Verify that input is correct
// If the -strip-debug command line option was specified, do it.
if (StripDebug)
addPass(PM, createStripSymbolsPass(true));
if (DisableOptimizations) return;
createStandardLTOPasses(&PM, /*Internalize=*/ !DisableInternalize,
/*RunInliner=*/ !DisableInline,
/*VerifyEach=*/ VerifyEach);
}
} // anonymous namespace
@ -404,6 +426,12 @@ int main(int argc, char **argv) {
StandardCompileOpts = false;
}
if (StandardLinkOpts &&
StandardLinkOpts.getPosition() < PassList.getPosition(i)) {
AddStandardLinkPasses(Passes);
StandardLinkOpts = false;
}
if (OptLevelO1 && OptLevelO1.getPosition() < PassList.getPosition(i)) {
AddOptimizationPasses(Passes, *FPasses, 1);
OptLevelO1 = false;
@ -458,17 +486,22 @@ int main(int argc, char **argv) {
StandardCompileOpts = false;
}
if (StandardLinkOpts) {
AddStandardLinkPasses(Passes);
StandardLinkOpts = false;
}
if (OptLevelO1) {
AddOptimizationPasses(Passes, *FPasses, 1);
}
AddOptimizationPasses(Passes, *FPasses, 1);
}
if (OptLevelO2) {
AddOptimizationPasses(Passes, *FPasses, 2);
}
AddOptimizationPasses(Passes, *FPasses, 2);
}
if (OptLevelO3) {
AddOptimizationPasses(Passes, *FPasses, 3);
}
AddOptimizationPasses(Passes, *FPasses, 3);
}
if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
for (Module::iterator I = M.get()->begin(), E = M.get()->end();