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| author | Craig Topper <craig.topper@gmail.com> | 2011-10-03 08:14:29 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2011-10-03 08:14:29 +0000 |
| commit | 04c5be9f12fbb802ae48791399e999f29c0fb5c9 (patch) | |
| tree | 1985bc9168192178f7c8af002e03b41a9f023977 /lib | |
| parent | 04b0b34b3aa3be028295e2aeccdfd054c449e310 (diff) | |
Treat VEX.vvvv as a 3-bit field outside of 64-bit mode. Prevents access to registers xmm8-xmm15 outside 64-bit mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140997 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/Disassembler/X86DisassemblerDecoder.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c index 1d5ad4c052..a1eb57c78f 100644 --- a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c +++ b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c @@ -1491,6 +1491,9 @@ static int readVVVV(struct InternalInstruction* insn) { else return -1; + if (insn->mode != MODE_64BIT) + insn->vvvv &= 0x7; + return 0; } |