DrSocalkwe3n/luajit
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Add allocation sinking and store sinking optimization.

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This commit is contained in:
Mike Pall
2012-07-02 23:47:12 +02:00
parent 79e1eaa73b
commit 0af3f47ba0
15 changed files with 749 additions and 88 deletions
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43
src/lj_asm_mips.h
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@@ -769,14 +769,18 @@ nolo:
static void asm_newref(ASMState *as, IRIns *ir)
{
const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_newkey];
IRRef args[3];
args[0] = ASMREF_L; /* lua_State *L */
args[1] = ir->op1; /* GCtab *t */
args[2] = ASMREF_TMP1; /* cTValue *key */
asm_setupresult(as, ir, ci); /* TValue * */
asm_gencall(as, ci, args);
asm_tvptr(as, ra_releasetmp(as, ASMREF_TMP1), ir->op2);
if (ir->r == RID_SINK) { /* Sink newref. */
return;
} else {
const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_newkey];
IRRef args[3];
args[0] = ASMREF_L; /* lua_State *L */
args[1] = ir->op1; /* GCtab *t */
args[2] = ASMREF_TMP1; /* cTValue *key */
asm_setupresult(as, ir, ci); /* TValue * */
asm_gencall(as, ci, args);
asm_tvptr(as, ra_releasetmp(as, ASMREF_TMP1), ir->op2);
}
}
static void asm_uref(ASMState *as, IRIns *ir)
@@ -912,9 +916,14 @@ static void asm_xload(ASMState *as, IRIns *ir)
static void asm_xstore(ASMState *as, IRIns *ir, int32_t ofs)
{
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);
if (ir->r == RID_SINK) { /* Sink store. */
asm_snap_prep(as);
return;
} else {
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);
}
}
static void asm_ahuvload(ASMState *as, IRIns *ir)
@@ -947,6 +956,10 @@ 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);
return;
}
if (irt_isnum(ir->t)) {
src = ra_alloc1(as, ir->op2, RSET_FPR);
} else {
@@ -1561,8 +1574,12 @@ static void asm_hiop(ASMState *as, IRIns *ir)
return;
} else if ((ir-1)->o == IR_XSTORE) {
as->curins--; /* Handle both stores here. */
asm_xstore(as, ir, LJ_LE ? 4 : 0);
asm_xstore(as, ir-1, LJ_LE ? 0 : 4);
if ((ir-1)->r == RID_SINK) {
asm_snap_prep(as);
} else {
asm_xstore(as, ir, LJ_LE ? 4 : 0);
asm_xstore(as, ir-1, LJ_LE ? 0 : 4);
}
return;
}
if (!usehi) return; /* Skip unused hiword op for all remaining ops. */