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[X86] There are only 8 mask registers. Fail disassembly if instruction tries to reference more.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230931 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2015-03-02 03:33:11 +00:00
parent d21acaf6a1
commit 2d9a799b16
1 changed files with 2 additions and 0 deletions
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lib/Target/X86/Disassembler/X86DisassemblerDecoder.cpp
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@ -1458,6 +1458,8 @@ static int readModRM(struct InternalInstruction* insn) {
case TYPE_VK1: \
case TYPE_VK8: \
case TYPE_VK16: \
if (index > 7) \
*valid = 0; \
return prefix##_K0 + index; \
case TYPE_MM64: \
return prefix##_MM0 + (index & 0x7); \