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Add IR_TOI64.

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This commit is contained in:
Mike Pall
2010-12-06 16:18:18 +01:00
parent f6c4e8d3d7
commit 159f51d811
5 changed files with 56 additions and 4 deletions
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19
src/lj_asm.c
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@@ -1595,6 +1595,24 @@ static void asm_tobit(ASMState *as, IRIns *ir)
ra_left(as, tmp, ir->op1);
}
static void asm_toi64(ASMState *as, IRIns *ir)
{
Reg dest = ra_dest(as, ir, RSET_GPR);
IRRef lref = ir->op1;
lua_assert(LJ_64); /* NYI: 32 bit register pairs. */
if (ir->op2 == IRTOINT_TRUNCI64) {
Reg left = asm_fuseload(as, lref, RSET_FPR);
emit_mrm(as, XO_CVTTSD2SI, dest|REX_64, left);
} else if (ir->op2 == IRTOINT_ZEXT64) {
/* Nothing to do. This assumes 32 bit regs are already zero-extended. */
ra_left(as, dest, lref); /* But may need to move regs. */
} else {
Reg left = asm_fuseload(as, lref, RSET_GPR);
emit_mrm(as, XO_MOVSXd, dest|REX_64, left);
lua_assert(ir->op2 == IRTOINT_SEXT64);
}
}
static void asm_strto(ASMState *as, IRIns *ir)
{
/* Force a spill slot for the destination register (if any). */
@@ -3531,6 +3549,7 @@ static void asm_ir(ASMState *as, IRIns *ir)
asm_toint(as, ir); break;
break;
case IR_TOBIT: asm_tobit(as, ir); break;
case IR_TOI64: asm_toi64(as, ir); break;
case IR_TOSTR: asm_tostr(as, ir); break;
case IR_STRTO: asm_strto(as, ir); break;