[llvm-commits] [llvm] r124709 - /llvm/trunk/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c

[Sean Callanan]

Author: spyffe
Date: Tue Feb  1 19:09:02 2011
New Revision: 124709

URL: http://llvm.org/viewvc/llvm-project?rev=124709&view=rev
Log:
Fixed a bug in the disassembler where the mandatory 0x66
prefix would be misinterpreted in some cases on 32-bit
x86 platforms.  Thanks to Olivier Meurant for identifying
the bug.

Modified:
    llvm/trunk/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c

Modified: llvm/trunk/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c?rev=124709&r1=124708&r2=124709&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c (original)
+++ llvm/trunk/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c Tue Feb  1 19:09:02 2011
@@ -388,6 +388,7 @@
     }
   } else {
     unconsumeByte(insn);
+    insn->necessaryPrefixLocation = insn->readerCursor - 1;
   }
   
   if (insn->mode == MODE_16BIT) {