commit 607acd66f400045919b1067432927a53484eaec1
author Evan Cheng <evan.cheng@apple.com> Wed Feb 06 02:06:33 2013 +0000
committer Evan Cheng <evan.cheng@apple.com> Wed Feb 06 02:06:33 2013 +0000
tree 203b6370504c7ecc32e20c3d6bae90913e9af68a
parent c342d9d345acdbd95577c7c6e9ce7d3a1bdb57bf

Tweak check to avoid integer overflow (for insanely large alignments)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174482 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 9bd6ae6..e0d6643 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -3520,7 +3520,7 @@
 
   EVT VT = TLI.getValueType(I.getType());
 
-  if (I.getAlignment() * 8 < VT.getSizeInBits())
+  if (I.getAlignment() < VT.getSizeInBits() / 8)
     report_fatal_error("Cannot generate unaligned atomic load");
 
   SDValue L =
@@ -3550,7 +3550,7 @@
 
   EVT VT = TLI.getValueType(I.getValueOperand()->getType());
 
-  if (I.getAlignment() * 8 < VT.getSizeInBits())
+  if (I.getAlignment() < VT.getSizeInBits() / 8)
     report_fatal_error("Cannot generate unaligned atomic store");
 
   if (TLI.getInsertFencesForAtomic())