From: David Majnemer <david.majnemer@gmail.com>
Date: Wed, 30 Apr 2014 16:12:21 +0000 (+0000)
Subject: IR: Alloca clones should remember inalloca state
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c16fa8872080f5beb927e6c68b5ada50cbc9dc24;p=oota-llvm.git

IR: Alloca clones should remember inalloca state

Pretty straightforward, we weren't propagating whether or not an
AllocaInst had 'inalloca' marked on it when it came time to clone it.

The inliner exposed this bug.  A reduced testcase is forthcoming.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207665 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/IR/Instructions.cpp b/lib/IR/Instructions.cpp
index 5b93c5323ab..e8bcddbd992 100644
--- a/lib/IR/Instructions.cpp
+++ b/lib/IR/Instructions.cpp
@@ -3587,9 +3587,10 @@ InsertValueInst *InsertValueInst::clone_impl() const {
 }
 
 AllocaInst *AllocaInst::clone_impl() const {
-  return new AllocaInst(getAllocatedType(),
-                        (Value*)getOperand(0),
-                        getAlignment());
+  AllocaInst *Result = new AllocaInst(getAllocatedType(),
+                                      (Value *)getOperand(0), getAlignment());
+  Result->setUsedWithInAlloca(isUsedWithInAlloca());
+  return Result;
 }
 
 LoadInst *LoadInst::clone_impl() const {