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| author | Jan Beulich <jbeulich@suse.com> | 2022-08-03 08:59:46 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2022-08-03 08:59:46 +0200 |
| commit | 2c735193b829aff44b37244205334bf71be9b814 (patch) | |
| tree | 619913e5ccd9959b8868ee013b74bdd9d869837b /gas | |
| parent | 8aaafe957ceee581e691d2f7f984cb40c58f2b5e (diff) | |
| download | binutils-2c735193b829aff44b37244205334bf71be9b814.zip binutils-2c735193b829aff44b37244205334bf71be9b814.tar.gz binutils-2c735193b829aff44b37244205334bf71be9b814.tar.bz2 | |
x86: also use D for MOVBE
First of all rename the meanwhile misleading Opcode_SIMD_FloatD, as it
has also been used for KMOV* and BNDMOV. Then simplify the condition
selecting which form if "reversing" to use - except for the MOV to/from
control/debug/test registers all extended opcode space insns use bit 0
(rather than bit 1) to indicate the direction (from/to memory) of an
operation. With that, D can simply be set on the first of the two
templates, while the other can be dropped.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/config/tc-i386.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 15520e5..78dad4e 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -3572,7 +3572,7 @@ build_vex_prefix (const insn_template *t) if (i.tm.opcode_modifier.d) i.tm.base_opcode ^= (i.tm.base_opcode & 0xee) != 0x6e - ? Opcode_SIMD_FloatD : Opcode_SIMD_IntD; + ? Opcode_ExtD : Opcode_SIMD_IntD; else /* Use the next insn. */ install_template (&t[1]); } @@ -6753,13 +6753,13 @@ match_template (char mnem_suffix) found_reverse_match = Opcode_VexW; goto check_operands_345; } - else if (operand_types[0].bitfield.xmmword - || operand_types[i.operands - 1].bitfield.xmmword - || operand_types[0].bitfield.class == RegMMX - || operand_types[i.operands - 1].bitfield.class == RegMMX - || is_any_vex_encoding(t)) + else if (t->opcode_modifier.opcodespace != SPACE_BASE + && (t->opcode_modifier.opcodespace != SPACE_0F + /* MOV to/from CR/DR/TR, as an exception, follow + the base opcode space encoding model. */ + || (t->base_opcode | 7) != 0x27)) found_reverse_match = (t->base_opcode & 0xee) != 0x6e - ? Opcode_SIMD_FloatD : Opcode_SIMD_IntD; + ? Opcode_ExtD : Opcode_SIMD_IntD; else found_reverse_match = Opcode_D; if (t->opcode_modifier.floatr) |