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Note that this shrinks i386_opcode_modifier back to 2 32-bit words (albeit that's not for long, seeing in-flight additions for APX). --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -7052,14 +7052,15 @@ match_template (char mnem_suffix) /* Check AT&T mnemonic. */ specific_error = progress (unsupported_with_intel_mnemonic); - if (!intel_syntax && intel_mnemonic && t->opcode_modifier.attmnemonic) + if (!intel_syntax && intel_mnemonic + && t->opcode_modifier.dialect == ATT_MNEMONIC) continue; /* Check AT&T/Intel syntax. */ specific_error = progress (unsupported_syntax); if (intel_syntax - ? t->opcode_modifier.attsyntax || t->opcode_modifier.attmnemonic - : t->opcode_modifier.intelsyntax) + ? t->opcode_modifier.dialect >= ATT_SYNTAX + : t->opcode_modifier.dialect == INTEL_SYNTAX) continue; /* Check Intel64/AMD64 ISA. */ --- a/gas/config/tc-i386-intel.c +++ b/gas/config/tc-i386-intel.c @@ -825,8 +825,7 @@ i386_intel_operand (char *operand_string /* Easy checks to skip templates which won't match anyway. */ if (this_operand >= t->operands - || t->opcode_modifier.attsyntax - || t->opcode_modifier.attmnemonic) + || t->opcode_modifier.dialect >= ATT_SYNTAX) continue; switch (suffix) --- a/opcodes/i386-gen.c +++ b/opcodes/i386-gen.c @@ -482,9 +482,7 @@ static bitfield opcode_modifiers[] = BITFIELD (Disp8MemShift), BITFIELD (Vsz), BITFIELD (Optimize), - BITFIELD (ATTMnemonic), - BITFIELD (ATTSyntax), - BITFIELD (IntelSyntax), + BITFIELD (Dialect), BITFIELD (ISA64), }; --- a/opcodes/i386-opc.h +++ b/opcodes/i386-opc.h @@ -729,12 +729,12 @@ enum /* Support encoding optimization. */ Optimize, - /* AT&T mnemonic. */ - ATTMnemonic, - /* AT&T syntax. */ - ATTSyntax, - /* Intel syntax. */ - IntelSyntax, + /* Language dialect. NOTE: Order matters! */ +#define INTEL_SYNTAX 1 +#define ATT_SYNTAX 2 +#define ATT_MNEMONIC 3 + Dialect, + /* ISA64: Don't change the order without other code adjustments. 0: Common to AMD64 and Intel64. 1: AMD64. @@ -788,9 +788,7 @@ typedef struct i386_opcode_modifier unsigned int disp8memshift:3; unsigned int vsz:3; unsigned int optimize:1; - unsigned int attmnemonic:1; - unsigned int attsyntax:1; - unsigned int intelsyntax:1; + unsigned int dialect:2; unsigned int isa64:2; } i386_opcode_modifier; --- a/opcodes/i386-opc.tbl +++ b/opcodes/i386-opc.tbl @@ -86,6 +86,10 @@ #define SwapSources OperandConstraint=SWAP_SOURCES #define Ugh OperandConstraint=UGH +#define ATTSyntax Dialect=ATT_SYNTAX +#define ATTMnemonic Dialect=ATT_MNEMONIC +#define IntelSyntax Dialect=INTEL_SYNTAX + #define IgnoreSize MnemonicSize=IGNORESIZE #define DefaultSize MnemonicSize=DEFAULTSIZE