From 3c86459997955560eaf8eda281bca0712d2bc68c Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Wed, 7 Dec 2011 07:49:49 +0000
Subject: Fix off-by-one error when encoding the stack size for a frameless
 stack.

llvm-svn: 146029
---
 llvm/lib/Target/X86/X86FrameLowering.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'llvm/lib/Target/X86/X86FrameLowering.cpp')

diff --git a/llvm/lib/Target/X86/X86FrameLowering.cpp b/llvm/lib/Target/X86/X86FrameLowering.cpp
index 158acc90c10..c0e86cad642 100644
--- a/llvm/lib/Target/X86/X86FrameLowering.cpp
+++ b/llvm/lib/Target/X86/X86FrameLowering.cpp
@@ -561,7 +561,7 @@ uint32_t X86FrameLowering::getCompactUnwindEncoding(MachineFunction &MF) const {
     CompactUnwindEncoding |= (StackAdjust & 0xFF) << 16;
     CompactUnwindEncoding |= RegEnc & 0x7FFF;
   } else {
-    uint32_t TotalStackSize = StackAdjust + StackSize;
+    uint32_t TotalStackSize = StackAdjust + StackSize + 1;
     if ((TotalStackSize & 0xFF) == TotalStackSize) {
       // Frameless stack with a small stack size.
       CompactUnwindEncoding |= 0x02000000;
-- 
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