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x64/LJ_GC64: Fix assembly of CNEWI with 64 bit constant pointer.

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Tracked down by Luke Gorrie.
This commit is contained in:
Mike Pall 2017-03-21 00:58:02 +01:00
parent 779a1eb8e6
commit fa126c5f97
1 changed files with 3 additions and 2 deletions
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5
src/lj_asm_x86.h
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@ -1791,8 +1791,9 @@ static void asm_cnew(ASMState *as, IRIns *ir)
Reg r64 = sz == 8 ? REX_64 : 0;
if (irref_isk(ir->op2)) {
IRIns *irk = IR(ir->op2);
uint64_t k = irk->o == IR_KINT64 ? ir_k64(irk)->u64 :
(uint64_t)(uint32_t)irk->i;
uint64_t k = (irk->o == IR_KINT64 ||
(LJ_GC64 && (irk->o == IR_KPTR || irk->o == IR_KKPTR))) ?
ir_k64(irk)->u64 : (uint64_t)(uint32_t)irk->i;
if (sz == 4 || checki32((int64_t)k)) {
emit_i32(as, (int32_t)k);
emit_rmro(as, XO_MOVmi, r64, RID_RET, sizeof(GCcdata));