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Add support for integer IR_NEG to backend.

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Mike Pall 2011-01-03 02:35:30 +01:00
parent 3291bb62e0
commit 593821f7d9
1 changed files with 9 additions and 4 deletions
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13
src/lj_asm.c
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@ -2831,10 +2831,10 @@ static void asm_add(ASMState *as, IRIns *ir)
asm_intarith(as, ir, XOg_ADD);
}
static void asm_bitnot(ASMState *as, IRIns *ir)
static void asm_neg_not(ASMState *as, IRIns *ir, x86Group3 xg)
{
Reg dest = ra_dest(as, ir, RSET_GPR);
emit_rr(as, XO_GROUP3, REX_64IR(ir, XOg_NOT), dest);
emit_rr(as, XO_GROUP3, REX_64IR(ir, xg), dest);
ra_left(as, dest, ir->op1);
}
@ -3691,7 +3691,7 @@ static void asm_ir(ASMState *as, IRIns *ir)
case IR_RETF: asm_retf(as, ir); break;
/* Bit ops. */
case IR_BNOT: asm_bitnot(as, ir); break;
case IR_BNOT: asm_neg_not(as, ir, XOg_NOT);
case IR_BSWAP: asm_bitswap(as, ir); break;
case IR_BAND: asm_intarith(as, ir, XOg_AND); break;
@ -3720,7 +3720,12 @@ static void asm_ir(ASMState *as, IRIns *ir)
break;
case IR_DIV: asm_fparith(as, ir, XO_DIVSD); break;
case IR_NEG: asm_fparith(as, ir, XO_XORPS); break;
case IR_NEG:
if (irt_isnum(ir->t))
asm_fparith(as, ir, XO_XORPS);
else
asm_neg_not(as, ir, XOg_NEG);
break;
case IR_ABS: asm_fparith(as, ir, XO_ANDPS); break;
case IR_MIN: asm_fparith(as, ir, XO_MINSD); break;