From: Eli Friedman <eli.friedman@gmail.com>
Date: Tue, 13 Sep 2011 22:19:59 +0000 (+0000)
Subject: Fix check for unaligned load/store so it doesn't catch over-aligned load/store.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=596f447467b35d7513c997cd9098026938676461;p=oota-llvm.git

Fix check for unaligned load/store so it doesn't catch over-aligned load/store.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139649 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 4c58fe92266..9d86c759b82 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -3402,7 +3402,7 @@ void SelectionDAGBuilder::visitAtomicLoad(const LoadInst &I) {
 
   EVT VT = EVT::getEVT(I.getType());
 
-  if (I.getAlignment() * 8 != VT.getSizeInBits())
+  if (I.getAlignment() * 8 < VT.getSizeInBits())
     report_fatal_error("Cannot generate unaligned atomic load");
 
   SDValue L =
@@ -3432,7 +3432,7 @@ void SelectionDAGBuilder::visitAtomicStore(const StoreInst &I) {
 
   EVT VT = EVT::getEVT(I.getValueOperand()->getType());
 
-  if (I.getAlignment() * 8 != VT.getSizeInBits())
+  if (I.getAlignment() * 8 < VT.getSizeInBits())
     report_fatal_error("Cannot generate unaligned atomic store");
 
   if (TLI.getInsertFencesForAtomic())