From: Dale Johannesen <dalej@apple.com>
Date: Wed, 11 Mar 2009 22:19:43 +0000 (+0000)
Subject: Skip interleaved debug info when fast-forwarding through
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a891518c4dfd7dddc2f88be0100f8204e738afb3;p=oota-llvm.git

Skip interleaved debug info when fast-forwarding through
allocations.  Apparently the assumption is there is an
instruction (terminator?) following the allocation so I
am allowing the same assumption.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66716 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 2bf87c0045d..b2a68641940 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -10954,10 +10954,10 @@ Instruction *InstCombiner::visitAllocationInst(AllocationInst &AI) {
       InsertNewInstBefore(New, AI);
 
       // Scan to the end of the allocation instructions, to skip over a block of
-      // allocas if possible...
+      // allocas if possible...also skip interleaved debug info
       //
       BasicBlock::iterator It = New;
-      while (isa<AllocationInst>(*It)) ++It;
+      while (isa<AllocationInst>(*It) || isa<DbgInfoIntrinsic>(*It)) ++It;
 
       // Now that I is pointing to the first non-allocation-inst in the block,
       // insert our getelementptr instruction...