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String buffers, part 3a: Add IR_TMPREF for passing TValues to helpers.

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Sponsored by fmad.io.
This commit is contained in:
Mike Pall
2021-07-19 16:23:12 +02:00
parent 71db0cf043
commit 6df650fe3f
12 changed files with 252 additions and 128 deletions
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28
src/lj_asm_arm64.h
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@@ -198,6 +198,9 @@ static Reg asm_fuseahuref(ASMState *as, IRRef ref, int32_t *ofsp, RegSet allow,
return RID_GL;
}
}
} else if (ir->o == IR_TMPREF) {
*ofsp = (int32_t)glofs(as, &J2G(as->J)->tmptv);
return RID_GL;
}
}
*ofsp = 0;
@@ -675,22 +678,23 @@ static void asm_tvstore64(ASMState *as, Reg base, int32_t ofs, IRRef ref)
}
/* Get pointer to TValue. */
static void asm_tvptr(ASMState *as, Reg dest, IRRef ref)
static void asm_tvptr(ASMState *as, Reg dest, IRRef ref, MSize mode)
{
IRIns *ir = IR(ref);
if (irt_isnum(ir->t)) {
if (irref_isk(ref)) {
/* Use the number constant itself as a TValue. */
ra_allockreg(as, i64ptr(ir_knum(ir)), dest);
if ((mode & IRTMPREF_IN1)) {
IRIns *ir = IR(ref);
if (irt_isnum(ir->t)) {
if (irref_isk(ref) && !(mode & IRTMPREF_OUT1)) {
/* Use the number constant itself as a TValue. */
ra_allockreg(as, i64ptr(ir_knum(ir)), dest);
return;
}
emit_lso(as, A64I_STRd, (ra_alloc1(as, ref, RSET_FPR) & 31), dest, 0);
} else {
/* Otherwise force a spill and use the spill slot. */
emit_opk(as, A64I_ADDx, dest, RID_SP, ra_spill(as, ir), RSET_GPR);
asm_tvstore64(as, dest, 0, ref);
}
} else {
/* Otherwise use g->tmptv to hold the TValue. */
asm_tvstore64(as, dest, 0, ref);
emit_dn(as, A64I_ADDx^emit_isk12(glofs(as, &J2G(as->J)->tmptv)), dest, RID_GL);
}
/* g->tmptv holds the TValue(s). */
emit_dn(as, A64I_ADDx^emit_isk12(glofs(as, &J2G(as->J)->tmptv)), dest, RID_GL);
}
static void asm_aref(ASMState *as, IRIns *ir)