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DUALNUM: Add integer variant of MIN/MAX.

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This commit is contained in:
Mike Pall
2011-03-11 23:28:46 +01:00
parent 889368e921
commit 7fb1075903
6 changed files with 64 additions and 7 deletions
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25
src/lj_asm.c
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@@ -3005,6 +3005,17 @@ static void asm_neg_not(ASMState *as, IRIns *ir, x86Group3 xg)
ra_left(as, dest, ir->op1);
}
static void asm_min_max(ASMState *as, IRIns *ir, int cc)
{
Reg right, dest = ra_dest(as, ir, RSET_GPR);
IRRef lref = ir->op1, rref = ir->op2;
if (irref_isk(rref)) { lref = rref; rref = ir->op1; }
right = ra_alloc1(as, rref, rset_exclude(RSET_GPR, dest));
emit_rr(as, XO_CMOV + (cc<<24), REX_64IR(ir, dest), right);
emit_rr(as, XO_CMP, REX_64IR(ir, dest), right);
ra_left(as, dest, lref);
}
static void asm_bitswap(ASMState *as, IRIns *ir)
{
Reg dest = ra_dest(as, ir, RSET_GPR);
@@ -4067,8 +4078,18 @@ static void asm_ir(ASMState *as, IRIns *ir)
break;
case IR_ABS: asm_fparith(as, ir, XO_ANDPS); break;
case IR_MIN: asm_fparith(as, ir, XO_MINSD); break;
case IR_MAX: asm_fparith(as, ir, XO_MAXSD); break;
case IR_MIN:
if (irt_isnum(ir->t))
asm_fparith(as, ir, XO_MINSD);
else
asm_min_max(as, ir, CC_G);
break;
case IR_MAX:
if (irt_isnum(ir->t))
asm_fparith(as, ir, XO_MAXSD);
else
asm_min_max(as, ir, CC_L);
break;
case IR_FPMATH: case IR_ATAN2: case IR_LDEXP:
asm_fpmath(as, ir);