diff options
| author | Craig Topper <craig.topper@gmail.com> | 2011-09-26 05:12:43 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2011-09-26 05:12:43 +0000 |
| commit | 100d86ada512e495104580b71e28599308fb7365 (patch) | |
| tree | 6a56113e075a705c7aa3ad628033776ddcb8aac0 /lib/Target/X86/Disassembler/X86DisassemblerDecoder.c | |
| parent | c291e2f5780c3a8470113a2a58c1fa680cd54b20 (diff) | |
Fix VEX decoding in i386 mode. Fixes PR11008.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140515 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/Disassembler/X86DisassemblerDecoder.c')
| -rw-r--r-- | lib/Target/X86/Disassembler/X86DisassemblerDecoder.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c index 9e533451b0..ed2cb3f70a 100644 --- a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c +++ b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c @@ -391,7 +391,7 @@ static int readPrefixes(struct InternalInstruction* insn) { return -1; } - if (insn->mode == MODE_64BIT || byte1 & 0x8) { + if (insn->mode == MODE_64BIT || (byte1 & 0xc0) == 0xc0) { insn->vexSize = 3; insn->necessaryPrefixLocation = insn->readerCursor - 1; } @@ -433,7 +433,7 @@ static int readPrefixes(struct InternalInstruction* insn) { return -1; } - if (insn->mode == MODE_64BIT || byte1 & 0x8) { + if (insn->mode == MODE_64BIT || (byte1 & 0xc0) == 0xc0) { insn->vexSize = 2; } else { |