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authorCraig Topper <craig.topper@gmail.com>2011-09-26 05:12:43 +0000
committerCraig Topper <craig.topper@gmail.com>2011-09-26 05:12:43 +0000
commit100d86ada512e495104580b71e28599308fb7365 (patch)
tree6a56113e075a705c7aa3ad628033776ddcb8aac0 /lib/Target
parentc291e2f5780c3a8470113a2a58c1fa680cd54b20 (diff)
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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')
-rw-r--r--lib/Target/X86/Disassembler/X86DisassemblerDecoder.c4
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 {