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Add an option to turn off the expensive GVN load PRE part of GVN.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153902 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2012-04-02 22:16:50 +00:00
parent 29f60f359b
commit 3197b4453d
3 changed files with 13 additions and 6 deletions
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6
tools/lto/LTOCodeGenerator.cpp
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@@ -49,6 +49,9 @@ using namespace llvm;
static cl::opt<bool> DisableInline("disable-inlining",
cl::desc("Do not run the inliner pass"));
static cl::opt<bool> DisableGVNLoadPRE("disable-gvn-loadpre",
cl::desc("Do not run the GVN load PRE pass"));
const char* LTOCodeGenerator::getVersionString() {
#ifdef LLVM_VERSION_INFO
return PACKAGE_NAME " version " PACKAGE_VERSION ", " LLVM_VERSION_INFO;
@@ -353,7 +356,8 @@ bool LTOCodeGenerator::generateObjectFile(raw_ostream &out,
passes.add(new TargetData(*_target->getTargetData()));
PassManagerBuilder().populateLTOPassManager(passes, /*Internalize=*/ false,
!DisableInline);
!DisableInline,
DisableGVNLoadPRE);
// Make sure everything is still good.
passes.add(createVerifierPass());