From 508355c9829bd60bf2afba7068f8d74607152f87 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Tue, 22 Dec 2009 04:47:41 +0000 Subject: don't run GVN at -O1, GCC doesn't do it's equivalent at that optimization level. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91886 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Support/StandardPasses.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/llvm') diff --git a/include/llvm/Support/StandardPasses.h b/include/llvm/Support/StandardPasses.h index 18be1ad..f233c18de 100644 --- a/include/llvm/Support/StandardPasses.h +++ b/include/llvm/Support/StandardPasses.h @@ -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 -- cgit v1.1