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tcg/i386: Simplify FP ops

This commit is contained in:
Matt Borgerson 2023-07-30 21:15:30 -07:00 committed by mborgerson
parent 16dd084612
commit f4ad6927e7
1 changed files with 16 additions and 18 deletions
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34
tcg/i386/tcg-target.c.inc
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@ -2568,24 +2568,23 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
} else if (a0 == a2) {
tcg_out_modrm(s, mopc, a0, a1);
} else {
tcg_out_stash_xmm(s, a1);
tcg_out_modrm(s, mopc, a1, a2);
tcg_out_mov(s, dp ? TCG_TYPE_F64 : TCG_TYPE_F32, a0, a1);
tcg_out_unstash_xmm(s, a1);
/* FIXME: AVX,reg,stack */
tcg_out_modrm(s, mopc, a0, a2);
}
break;
}
OP_f32_f64(sub): {
int mopc = dp ? OPC_SUBSD : OPC_SUBSS;
int ft = dp ? TCG_TYPE_F64 : TCG_TYPE_F32;
if (a0 == a1) {
tcg_out_modrm(s, mopc, a0, a2);
} else if (a0 == a2) {
tcg_out_stash_xmm(s, a2);
tcg_out_mov(s, ft, a0, a1);
tcg_out_modrm_offset(s, mopc, a0, TCG_REG_ESP, -0x10);
} else {
tcg_out_stash_xmm(s, a1);
tcg_out_modrm(s, mopc, a1, a2);
tcg_out_mov(s, dp ? TCG_TYPE_F64 : TCG_TYPE_F32, a0, a1);
tcg_out_unstash_xmm(s, a1);
/* FIXME: AVX,reg,stack */
tcg_out_mov(s, ft, a0, a1);
tcg_out_modrm(s, mopc, a0, a2);
}
break;
}
@ -2596,24 +2595,23 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
} else if (a0 == a2) {
tcg_out_modrm(s, mopc, a0, a1);
} else {
tcg_out_stash_xmm(s, a1);
tcg_out_modrm(s, mopc, a1, a2);
tcg_out_mov(s, dp ? TCG_TYPE_F64 : TCG_TYPE_F32, a0, a1);
tcg_out_unstash_xmm(s, a1);
/* FIXME: AVX,reg,stack */
tcg_out_modrm(s, mopc, a0, a2);
}
break;
}
OP_f32_f64(div): {
int mopc = dp ? OPC_DIVSD : OPC_DIVSS;
int ft = dp ? TCG_TYPE_F64 : TCG_TYPE_F32;
if (a0 == a1) {
tcg_out_modrm(s, mopc, a0, a2);
} else if (a0 == a2) {
tcg_out_stash_xmm(s, a2);
tcg_out_mov(s, ft, a0, a1);
tcg_out_modrm_offset(s, mopc, a0, TCG_REG_ESP, -0x10);
} else {
tcg_out_stash_xmm(s, a1);
tcg_out_modrm(s, mopc, a1, a2);
tcg_out_mov(s, dp ? TCG_TYPE_F64 : TCG_TYPE_F32, a0, a1);
tcg_out_unstash_xmm(s, a1);
/* FIXME: AVX,reg,stack */
tcg_out_mov(s, ft, a0, a1);
tcg_out_modrm(s, mopc, a0, a2);
}
break;
}