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Disable header duplication at -Oz in loop-rotate pass.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222562 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Roman Divacky
2014-11-21 19:53:24 +00:00
parent ea692ff712
commit 9bd372345c
1 changed files with 2 additions and 1 deletions
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3
lib/Transforms/IPO/PassManagerBuilder.cpp
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@@ -228,7 +228,8 @@ void PassManagerBuilder::populateModulePassManager(PassManagerBase &MPM) {
MPM.add(createTailCallEliminationPass()); // Eliminate tail calls
MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
MPM.add(createReassociatePass()); // Reassociate expressions
MPM.add(createLoopRotatePass()); // Rotate Loop
// Rotate Loop - disable header duplication at -Oz
MPM.add(createLoopRotatePass(SizeLevel == 2 ? 0 : -1));
MPM.add(createLICMPass()); // Hoist loop invariants
MPM.add(createLoopUnswitchPass(SizeLevel || OptLevel < 3));
MPM.add(createInstructionCombiningPass());