From a8d57fe96bb870e4f69c6b522a78936d1495d0d2 Mon Sep 17 00:00:00 2001 From: Zhou Sheng Date: Thu, 26 Feb 2009 06:56:37 +0000 Subject: Ignore dbg info intrinsics when folding conditional branch to conditional branch predecessors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65509 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Utils/SimplifyCFG.cpp | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'lib/Transforms/Utils/SimplifyCFG.cpp') diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp index 08c8a3f65e..25579614ec 100644 --- a/lib/Transforms/Utils/SimplifyCFG.cpp +++ b/lib/Transforms/Utils/SimplifyCFG.cpp @@ -1592,7 +1592,11 @@ static bool SimplifyCondBranchToCondBranch(BranchInst *PBI, BranchInst *BI) { // If this is a conditional branch in an empty block, and if any // predecessors is a conditional branch to one of our destinations, // fold the conditions into logical ops and one cond br. - if (&BB->front() != BI) + BasicBlock::iterator BBI = BB->begin(); + // Ignore dbg intrinsics. + while (isa(BBI)) + ++BBI; + if (&*BBI != BI) return false; -- cgit v1.2.3