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LibJIT/X86_64: Allow mul32() with immediate operand

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This commit is contained in:
Andreas Kling 2023-11-06 15:19:26 +01:00
parent 0bbf230e4f
commit 5479bb6ac9
1 changed files with 14 additions and 0 deletions
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14
Userland/Libraries/LibJIT/X86_64/Assembler.h
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@ -557,6 +557,20 @@ struct X86_64Assembler {
emit8(0x0f); emit8(0x0f);
emit8(0xaf); emit8(0xaf);
emit_modrm_rm(dest, src); emit_modrm_rm(dest, src);
} else if (dest.type == Operand::Type::Reg && src.type == Operand::Type::Imm) {
if (src.fits_in_i8()) {
emit_rex_for_rm(dest, dest, REX_W::No);
emit8(0x6b);
emit_modrm_rm(dest, dest);
emit8(src.offset_or_immediate);
} else if (src.fits_in_i32()) {
emit_rex_for_rm(dest, dest, REX_W::No);
emit8(0x69);
emit_modrm_rm(dest, dest);
emit32(src.offset_or_immediate);
} else {
VERIFY_NOT_REACHED();
}
} else { } else {
VERIFY_NOT_REACHED(); VERIFY_NOT_REACHED();
} }