diff options
Diffstat (limited to 'utils/TableGen/X86DisassemblerTables.cpp')
| -rw-r--r-- | utils/TableGen/X86DisassemblerTables.cpp | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/utils/TableGen/X86DisassemblerTables.cpp b/utils/TableGen/X86DisassemblerTables.cpp index 0ccfac7855..f9c3e1ab2f 100644 --- a/utils/TableGen/X86DisassemblerTables.cpp +++ b/utils/TableGen/X86DisassemblerTables.cpp @@ -94,11 +94,8 @@ static inline bool inheritsFrom(InstructionContext child, inheritsFrom(child, IC_64BIT_XD) || inheritsFrom(child, IC_64BIT_XS)); case IC_OPSIZE: - return (inheritsFrom(child, IC_64BIT_OPSIZE) || - inheritsFrom(child, IC_OPSIZE_ADSIZE)); + return inheritsFrom(child, IC_64BIT_OPSIZE); case IC_ADSIZE: - return inheritsFrom(child, IC_OPSIZE_ADSIZE); - case IC_OPSIZE_ADSIZE: case IC_64BIT_ADSIZE: return false; case IC_XD: @@ -803,6 +800,15 @@ void DisassemblerTables::setTableFields(ModRMDecision &decision, if(newInfo.filtered) continue; // filtered instructions get lowest priority + // Instructions such as MOV8ao8 and MOV8ao8_16 differ only in the + // presence of the AdSize prefix. However, the disassembler doesn't + // care about that difference in the instruction definition; it + // handles 16-bit vs. 32-bit addressing for itself based purely + // on the 0x67 prefix and the CPU mode. So there's no need to + // disambiguate between them; just let them conflict/coexist. + if (previousInfo.name + "_16" == newInfo.name) + continue; + if(previousInfo.name == "NOOP" && (newInfo.name == "XCHG16ar" || newInfo.name == "XCHG32ar" || newInfo.name == "XCHG32ar64" || |