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Only emit proper parent references in snapshot replay.

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Thanks to Peter Cawley. #1132
This commit is contained in:
Mike Pall 2023-12-11 13:01:36 +01:00
parent 10cc759f25
commit 9bdfd34dcc
1 changed files with 8 additions and 4 deletions
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12
src/lj_snap.c
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@ -510,12 +510,14 @@ void lj_snap_replay(jit_State *J, GCtrace *T)
IRRef refp = snap_ref(sn); IRRef refp = snap_ref(sn);
IRIns *ir = &T->ir[refp]; IRIns *ir = &T->ir[refp];
if (regsp_reg(ir->r) == RID_SUNK) { if (regsp_reg(ir->r) == RID_SUNK) {
uint8_t m;
if (J->slot[snap_slot(sn)] != snap_slot(sn)) continue; if (J->slot[snap_slot(sn)] != snap_slot(sn)) continue;
pass23 = 1; pass23 = 1;
lua_assert(ir->o == IR_TNEW || ir->o == IR_TDUP || lua_assert(ir->o == IR_TNEW || ir->o == IR_TDUP ||
ir->o == IR_CNEW || ir->o == IR_CNEWI); ir->o == IR_CNEW || ir->o == IR_CNEWI);
if (ir->op1 >= T->nk) snap_pref(J, T, map, nent, seen, ir->op1); m = lj_ir_mode[ir->o];
if (ir->op2 >= T->nk) snap_pref(J, T, map, nent, seen, ir->op2); if (irm_op1(m) == IRMref) snap_pref(J, T, map, nent, seen, ir->op1);
if (irm_op2(m) == IRMref) snap_pref(J, T, map, nent, seen, ir->op2);
if (LJ_HASFFI && ir->o == IR_CNEWI) { if (LJ_HASFFI && ir->o == IR_CNEWI) {
if (LJ_32 && refp+1 < T->nins && (ir+1)->o == IR_HIOP) if (LJ_32 && refp+1 < T->nins && (ir+1)->o == IR_HIOP)
snap_pref(J, T, map, nent, seen, (ir+1)->op2); snap_pref(J, T, map, nent, seen, (ir+1)->op2);
@ -542,14 +544,16 @@ void lj_snap_replay(jit_State *J, GCtrace *T)
IRIns *ir = &T->ir[refp]; IRIns *ir = &T->ir[refp];
if (regsp_reg(ir->r) == RID_SUNK) { if (regsp_reg(ir->r) == RID_SUNK) {
TRef op1, op2; TRef op1, op2;
uint8_t m;
if (J->slot[snap_slot(sn)] != snap_slot(sn)) { /* De-dup allocs. */ if (J->slot[snap_slot(sn)] != snap_slot(sn)) { /* De-dup allocs. */
J->slot[snap_slot(sn)] = J->slot[J->slot[snap_slot(sn)]]; J->slot[snap_slot(sn)] = J->slot[J->slot[snap_slot(sn)]];
continue; continue;
} }
op1 = ir->op1; op1 = ir->op1;
if (op1 >= T->nk) op1 = snap_pref(J, T, map, nent, seen, op1); m = lj_ir_mode[ir->o];
if (irm_op1(m) == IRMref) op1 = snap_pref(J, T, map, nent, seen, op1);
op2 = ir->op2; op2 = ir->op2;
if (op2 >= T->nk) op2 = snap_pref(J, T, map, nent, seen, op2); if (irm_op2(m) == IRMref) op2 = snap_pref(J, T, map, nent, seen, op2);
if (LJ_HASFFI && ir->o == IR_CNEWI) { if (LJ_HASFFI && ir->o == IR_CNEWI) {
if (LJ_32 && refp+1 < T->nins && (ir+1)->o == IR_HIOP) { if (LJ_32 && refp+1 < T->nins && (ir+1)->o == IR_HIOP) {
lj_needsplit(J); /* Emit joining HIOP. */ lj_needsplit(J); /* Emit joining HIOP. */