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| author |   Jan Beulich <jbeulich@suse.com> | 2024-06-28 08:24:12 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2024-06-28 08:24:12 +0200 |
| commit | 7add9939175aa71faa37c40dcedcb9190e3b37d8 (patch) | |
| tree | 49f44324dad8743cdcf29770201016037db5a01d /gas/config/tc-i386.c | |
| parent | x86/APX: optimize {nf}-form IMUL-by-power-of-2 to SHL (diff) | |
| download | binutils-gdb-7add9939175aa71faa37c40dcedcb9190e3b37d8.tar.gz binutils-gdb-7add9939175aa71faa37c40dcedcb9190e3b37d8.tar.bz2 binutils-gdb-7add9939175aa71faa37c40dcedcb9190e3b37d8.zip | |
x86/APX: extend TEST-by-imm7 optimization to CTESTcc
The same properties apply there.
Diffstat (limited to 'gas/config/tc-i386.c')
| -rw-r--r-- | gas/config/tc-i386.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 7ad0267929f..4de5c0127a3 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -4770,7 +4770,9 @@ optimize_encoding (void) } if (optimize_for_space - && i.tm.mnem_off == MN_test + && (i.tm.mnem_off == MN_test + || (i.tm.base_opcode == 0xf6 + && i.tm.opcode_space == SPACE_EVEXMAP4)) && i.reg_operands == 1 && i.imm_operands == 1 && !i.types[1].bitfield.byte @@ -4779,9 +4781,13 @@ optimize_encoding (void) && fits_in_imm7 (i.op[0].imms->X_add_number)) { /* Optimize: -Os: - test $imm7, %r64/%r32/%r16 -> test $imm7, %r8 + test $imm7, %r64/%r32/%r16 -> test $imm7, %r8 + ctest<cc> $imm7, %r64/%r32/%r16 -> ctest<cc> $imm7, %r8 */ unsigned int base_regnum = i.op[1].regs->reg_num; + + gas_assert (!i.tm.opcode_modifier.modrm || i.tm.extension_opcode == 0); + if (flag_code == CODE_64BIT || base_regnum < 4) { i.types[1].bitfield.byte = 1; |