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Add IRT_NUM support to XLOAD/XSTORE.

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Mike Pall 2010-12-06 19:28:51 +01:00
parent 159f51d811
commit b3c4c0810a
1 changed files with 4 additions and 2 deletions
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6
src/lj_asm.c
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@ -1363,10 +1363,10 @@ static Reg asm_fuseload(ASMState *as, IRRef ref, RegSet allow)
return RID_MRM;
}
} else if (ir->o == IR_XLOAD) {
/* Generic fusion is only ok for 32 bit operand (but see asm_comp).
/* Generic fusion is not ok for 8/16 bit operands (but see asm_comp).
** Fusing unaligned memory operands is ok on x86 (except for SIMD types).
*/
if ((irt_isint(ir->t) || irt_isaddr(ir->t)) &&
if ((!irt_typerange(ir->t, IRT_I8, IRT_U16)) &&
noconflict(as, ref, IR_XSTORE)) {
asm_fusexref(as, ir->op1, xallow);
return RID_MRM;
@ -1995,6 +1995,7 @@ static void asm_fxload(ASMState *as, IRIns *ir)
case IRT_U8: xo = XO_MOVZXb; break;
case IRT_I16: xo = XO_MOVSXw; break;
case IRT_U16: xo = XO_MOVZXw; break;
case IRT_NUM: xo = XMM_MOVRM(as); break;
default:
if (LJ_64 && irt_is64(ir->t))
dest |= REX_64;
@ -2029,6 +2030,7 @@ static void asm_fxstore(ASMState *as, IRIns *ir)
switch (irt_type(ir->t)) {
case IRT_I8: case IRT_U8: xo = XO_MOVtob; src |= FORCE_REX; break;
case IRT_I16: case IRT_U16: xo = XO_MOVtow; break;
case IRT_NUM: xo = XO_MOVSDto; break;
#if LJ_64
case IRT_LIGHTUD: lua_assert(0); /* NYI: mask 64 bit lightuserdata. */
#endif