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author | Bill Wendling <isanbard@gmail.com> | 2012-04-02 22:16:50 +0000 |
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committer | Bill Wendling <isanbard@gmail.com> | 2012-04-02 22:16:50 +0000 |
commit | 3197b4453d214aa96de3a42da8f8fe189fff2077 (patch) | |
tree | 38a68f4e6bd20272bab5c4ae4eb3b157c8e0271b /lib/Transforms/IPO/PassManagerBuilder.cpp | |
parent | 29f60f359b59032108cdabcde91217b6784c4e13 (diff) | |
download | llvm-3197b4453d214aa96de3a42da8f8fe189fff2077.tar.gz llvm-3197b4453d214aa96de3a42da8f8fe189fff2077.tar.bz2 llvm-3197b4453d214aa96de3a42da8f8fe189fff2077.tar.xz |
Add an option to turn off the expensive GVN load PRE part of GVN.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153902 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/IPO/PassManagerBuilder.cpp')
-rw-r--r-- | lib/Transforms/IPO/PassManagerBuilder.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp index 243ba1a85b..a1b0a4580b 100644 --- a/lib/Transforms/IPO/PassManagerBuilder.cpp +++ b/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -207,7 +207,8 @@ void PassManagerBuilder::populateModulePassManager(PassManagerBase &MPM) { void PassManagerBuilder::populateLTOPassManager(PassManagerBase &PM, bool Internalize, - bool RunInliner) { + bool RunInliner, + bool DisableGVNLoadPRE) { // Provide AliasAnalysis services for optimizations. addInitialAliasAnalysisPasses(PM); @@ -263,9 +264,9 @@ void PassManagerBuilder::populateLTOPassManager(PassManagerBase &PM, PM.add(createFunctionAttrsPass()); // Add nocapture. PM.add(createGlobalsModRefPass()); // IP alias analysis. - PM.add(createLICMPass()); // Hoist loop invariants. - PM.add(createGVNPass()); // Remove redundancies. - PM.add(createMemCpyOptPass()); // Remove dead memcpys. + PM.add(createLICMPass()); // Hoist loop invariants. + PM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies. + PM.add(createMemCpyOptPass()); // Remove dead memcpys. // Nuke dead stores. PM.add(createDeadStoreEliminationPass()); |