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Remove unneeded snapshot preps for sunk stores.

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This commit is contained in:
Mike Pall
2012-07-03 23:19:45 +02:00
parent d5b9d84538
commit 4da7ffc34b
4 changed files with 19 additions and 53 deletions
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22
src/lj_asm_mips.h
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@@ -769,9 +769,7 @@ nolo:
static void asm_newref(ASMState *as, IRIns *ir)
{
if (ir->r == RID_SINK) { /* Sink newref. */
return;
} else {
if (ir->r != RID_SINK) {
const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_newkey];
IRRef args[3];
args[0] = ASMREF_L; /* lua_State *L */
@@ -893,10 +891,7 @@ static void asm_fload(ASMState *as, IRIns *ir)
static void asm_fstore(ASMState *as, IRIns *ir)
{
if (ir->r == RID_SINK) { /* Sink store. */
asm_snap_prep(as);
return;
} else {
if (ir->r != RID_SINK) {
Reg src = ra_alloc1z(as, ir->op2, RSET_GPR);
IRIns *irf = IR(ir->op1);
Reg idx = ra_alloc1(as, irf->op1, rset_exclude(RSET_GPR, src));
@@ -916,10 +911,7 @@ static void asm_xload(ASMState *as, IRIns *ir)
static void asm_xstore(ASMState *as, IRIns *ir, int32_t ofs)
{
if (ir->r == RID_SINK) { /* Sink store. */
asm_snap_prep(as);
return;
} else {
if (ir->r != RID_SINK) {
Reg src = ra_alloc1z(as, ir->op2, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR);
asm_fusexref(as, asm_fxstoreins(ir), src, ir->op1,
rset_exclude(RSET_GPR, src), ofs);
@@ -956,10 +948,8 @@ static void asm_ahustore(ASMState *as, IRIns *ir)
RegSet allow = RSET_GPR;
Reg idx, src = RID_NONE, type = RID_NONE;
int32_t ofs = 0;
if (ir->r == RID_SINK) { /* Sink store. */
asm_snap_prep(as);
if (ir->r == RID_SINK)
return;
}
if (irt_isnum(ir->t)) {
src = ra_alloc1(as, ir->op2, RSET_FPR);
} else {
@@ -1574,9 +1564,7 @@ static void asm_hiop(ASMState *as, IRIns *ir)
return;
} else if ((ir-1)->o == IR_XSTORE) {
as->curins--; /* Handle both stores here. */
if ((ir-1)->r == RID_SINK) {
asm_snap_prep(as);
} else {
if ((ir-1)->r != RID_SINK) {
asm_xstore(as, ir, LJ_LE ? 4 : 0);
asm_xstore(as, ir-1, LJ_LE ? 0 : 4);
}