From: Chandler Carruth Date: Sat, 24 Jan 2015 11:12:57 +0000 (+0000) Subject: [PM] Change LowerExpectIntrinsic to actually return true when it has X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f6efb2b30b725bb7bfe9206d263c80b094c5fc93;p=oota-llvm.git [PM] Change LowerExpectIntrinsic to actually return true when it has changed the IR. This is particularly easy as we can just look for the existence of any expect intrinsic at all to know whether we've changed the IR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226998 91177308-0d34-0410-b5e6-96231b3b80d8 --- diff --git a/lib/Transforms/Scalar/LowerExpectIntrinsic.cpp b/lib/Transforms/Scalar/LowerExpectIntrinsic.cpp index 5d3bbbc6047..0cea5c5bc59 100644 --- a/lib/Transforms/Scalar/LowerExpectIntrinsic.cpp +++ b/lib/Transforms/Scalar/LowerExpectIntrinsic.cpp @@ -144,6 +144,8 @@ static bool handleBranchExpect(BranchInst &BI) { } bool LowerExpectIntrinsic::runOnFunction(Function &F) { + bool Changed = false; + for (BasicBlock &BB : F) { // Create "block_weights" metadata. if (BranchInst *BI = dyn_cast(BB.getTerminator())) { @@ -165,11 +167,12 @@ bool LowerExpectIntrinsic::runOnFunction(Function &F) { Value *Exp = CI->getArgOperand(0); CI->replaceAllUsesWith(Exp); CI->eraseFromParent(); + Changed = true; } } } - return false; + return Changed; } char LowerExpectIntrinsic::ID = 0;