[llvm-commits] [llvm] r146029 - /llvm/trunk/lib/Target/X86/X86FrameLowering.cpp

[Bill Wendling]

Author: void
Date: Wed Dec  7 01:49:49 2011
New Revision: 146029

URL: http://llvm.org/viewvc/llvm-project?rev=146029&view=rev
Log:
Fix off-by-one error when encoding the stack size for a frameless stack.

Modified:
    llvm/trunk/lib/Target/X86/X86FrameLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86FrameLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86FrameLowering.cpp?rev=146029&r1=146028&r2=146029&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86FrameLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86FrameLowering.cpp Wed Dec  7 01:49:49 2011
@@ -561,7 +561,7 @@
     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;