From 11edab6a4667f5c3900bc3000b87a5a1eb3dd938 Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@apple.com>
Date: Thu, 9 Jun 2011 00:15:19 +0000
Subject: If the alignment of the byval argument is greater than the alignment
 of the frame then increase the maximum alignment of the frame to match.

Fixes PR6965

llvm-svn: 132764
---
 llvm/lib/CodeGen/CallingConvLower.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'llvm/lib/CodeGen/CallingConvLower.cpp')

diff --git a/llvm/lib/CodeGen/CallingConvLower.cpp b/llvm/lib/CodeGen/CallingConvLower.cpp
index dac2fef5b43..bc61ec8ed0a 100644
--- a/llvm/lib/CodeGen/CallingConvLower.cpp
+++ b/llvm/lib/CodeGen/CallingConvLower.cpp
@@ -49,6 +49,8 @@ void CCState::HandleByVal(unsigned ValNo, MVT ValVT,
     Size = MinSize;
   if (MinAlign > (int)Align)
     Align = MinAlign;
+  if (MF.getFrameInfo()->getMaxAlignment() < Align)
+    MF.getFrameInfo()->setMaxAlignment(Align);
   TM.getTargetLowering()->HandleByVal(const_cast<CCState*>(this), Size);
   unsigned Offset = AllocateStack(Size, Align);
   addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo));
-- 
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