From: Evan Cheng <evan.cheng@apple.com>
Date: Fri, 30 Oct 2009 07:23:49 +0000 (+0000)
Subject: Rather than having llvm-gcc changing the meaning of OptimizeSize, just make sure... 
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=50222db00ac2476de6d76e599d8dd2baa4e5e244;p=oota-llvm.git

Rather than having llvm-gcc changing the meaning of OptimizeSize, just make sure loop unswitch is conservative when optimization level is < 3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85581 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Support/StandardPasses.h b/include/llvm/Support/StandardPasses.h
index 611e7864482..e36f83d43fe 100644
--- a/include/llvm/Support/StandardPasses.h
+++ b/include/llvm/Support/StandardPasses.h
@@ -128,7 +128,7 @@ namespace llvm {
     PM->add(createReassociatePass());           // Reassociate expressions
     PM->add(createLoopRotatePass());            // Rotate Loop
     PM->add(createLICMPass());                  // Hoist loop invariants
-    PM->add(createLoopUnswitchPass(OptimizeSize));
+    PM->add(createLoopUnswitchPass(OptimizeSize || OptimizationLevel < 3));
     PM->add(createInstructionCombiningPass());  
     PM->add(createIndVarSimplifyPass());        // Canonicalize indvars
     PM->add(createLoopDeletionPass());          // Delete dead loops