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Add IR_FLOAD with REF_NIL for field loads from GG_State.

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Contributed by Peter Cawley.
This commit is contained in:
Mike Pall
2016-05-21 00:30:36 +02:00
parent cfa188f134
commit 786dbb2ebd
8 changed files with 72 additions and 31 deletions
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20
src/lj_asm_mips.h
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@@ -896,17 +896,23 @@ static MIPSIns asm_fxstoreins(IRIns *ir)
static void asm_fload(ASMState *as, IRIns *ir)
{
Reg dest = ra_dest(as, ir, RSET_GPR);
Reg idx = ra_alloc1(as, ir->op1, RSET_GPR);
MIPSIns mi = asm_fxloadins(ir);
Reg idx;
int32_t ofs;
if (ir->op2 == IRFL_TAB_ARRAY) {
ofs = asm_fuseabase(as, ir->op1);
if (ofs) { /* Turn the t->array load into an add for colocated arrays. */
emit_tsi(as, MIPSI_ADDIU, dest, idx, ofs);
return;
if (ir->op1 == REF_NIL) {
idx = RID_JGL;
ofs = ir->op2 - 32768;
} else {
idx = ra_alloc1(as, ir->op1, RSET_GPR);
if (ir->op2 == IRFL_TAB_ARRAY) {
ofs = asm_fuseabase(as, ir->op1);
if (ofs) { /* Turn the t->array load into an add for colocated arrays. */
emit_tsi(as, MIPSI_ADDIU, dest, idx, ofs);
return;
}
}
ofs = field_ofs[ir->op2];
}
ofs = field_ofs[ir->op2];
lua_assert(!irt_isfp(ir->t));
emit_tsi(as, mi, dest, idx, ofs);
}