[X86][3DNOW] Teach decoder about AMD 3DNow! instrs
Summary:
This patch makes the decoder understand old AMD 3DNow!
instructions that have never been properly supported in the X86
disassembler, despite being supported in other subsystems. Hopefully
this should make the X86 decoder more complete with respect to binaries
containing legacy code.
Reviewers: craig.topper
Reviewed By: craig.topper
Subscribers: llvm-commits, maksfb, bruno
Differential Revision: https://reviews.llvm.org/D43311
llvm-svn: 325295
diff --git a/llvm/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h b/llvm/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h
index ecd9d8d..1be3c43 100644
--- a/llvm/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h
+++ b/llvm/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h
@@ -493,7 +493,8 @@
TYPE_VEX_2B = 0x1,
TYPE_VEX_3B = 0x2,
TYPE_EVEX = 0x3,
- TYPE_XOP = 0x4
+ TYPE_XOP = 0x4,
+ TYPE_3DNOW = 0x5
};
/// \brief Type for the byte reader that the consumer must provide to