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don't run GVN at -O1, GCC doesn't do it's equivalent at that optimization level.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91886 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-12-22 04:47:41 +00:00
parent 0ee443d169
commit 508355c982
1 changed files with 2 additions and 1 deletions
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3
include/llvm/Support/StandardPasses.h
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@ -137,7 +137,8 @@ namespace llvm {
if (UnrollLoops)
PM->add(createLoopUnrollPass()); // Unroll small loops
PM->add(createInstructionCombiningPass()); // Clean up after the unroller
PM->add(createGVNPass()); // Remove redundancies
if (OptimizationLevel > 1)
PM->add(createGVNPass()); // Remove redundancies
PM->add(createMemCpyOptPass()); // Remove memcpy / form memset
PM->add(createSCCPPass()); // Constant prop with SCCP