Author: laijx
Date: 2010-08-24 22:12:27 -0400 (Tue, 24 Aug 2010)
New Revision: 3320
Modified:
trunk/osprey/be/com/opt_alias_mgr.cxx
trunk/osprey/be/com/opt_points_to.h
trunk/osprey/be/opt/opt_alias_analysis.cxx
trunk/osprey/be/opt/opt_emit_template.h
trunk/osprey/be/opt/opt_sym.cxx
trunk/osprey/be/opt/opt_wn.cxx
trunk/osprey/common/com/wn_core.h
trunk/osprey/wgen/wgen_expr.cxx
Log:
Enable PARM_DEREFERENCE on all platforms.
PARM_DEREFERENCE is introduced by SL to model the side-effect of the
intrinsic op:
(PARM_BY_VALUE | PARM_DEREFERENCE) means the parameter is a pointer passed
by value and it will be dereferenced in the callee.
Approved by Fred.
Modified: trunk/osprey/be/com/opt_alias_mgr.cxx
===================================================================
--- trunk/osprey/be/com/opt_alias_mgr.cxx 2010-08-25 01:42:50 UTC (rev
3319)
+++ trunk/osprey/be/com/opt_alias_mgr.cxx 2010-08-25 02:12:27 UTC (rev
3320)
@@ -1130,13 +1130,8 @@
// Test aliasing with call-by-ref parameters
for (INT32 i = 0; i < WN_kid_count(region_or_call); i++) {
WN *wn = WN_kid(region_or_call,i);
-#if defined(TARG_SL)
if (WN_operator(wn) == OPR_PARM &&
(WN_Parm_By_Reference(wn)||WN_Parm_Dereference(wn))) {
-#else
- if (WN_operator(wn) == OPR_PARM &&
- WN_Parm_By_Reference(wn)) {
-#endif
// check aliasing
IDTYPE id2 = am->Id(wn);
if (id2 == 0) return POSSIBLY_ALIASED; // assume aliased
@@ -1193,11 +1188,7 @@
// go through call-by-ref all parameters
for (INT32 i = 0; i < WN_kid_count(intr_op); i++) {
WN *wn = WN_kid(intr_op,i);
-#if defined(TARG_SL)
if (WN_Parm_By_Reference(wn) || WN_Parm_Dereference(wn)) {
-#else
- if (WN_Parm_By_Reference(wn)) {
-#endif
// check aliasing
IDTYPE id2 = am->Id(wn);
if (id2 == 0) return POSSIBLY_ALIASED; // assume aliased
@@ -1343,11 +1334,7 @@
ST_sclass(WN_st(wn1)) == SCLASS_REG) {
id = am->Preg_id();
am->Set_id(wn1, id);
-#if defined(TARG_SL)
} else if (opr == OPR_PARM && !WN_Parm_By_Reference(wn1) &&
!WN_Parm_Dereference(wn1)) {
-#else
- } else if (opr == OPR_PARM && !WN_Parm_By_Reference(wn1)) {
-#endif
// It has no alias info.
am->Set_id(wn2, 0); // cancel the original alias info in wn2
return;
@@ -1394,11 +1381,7 @@
ST_sclass(WN_st(wn1)) == SCLASS_REG) {
id = am->Preg_id();
am->Set_id(wn1, id);
-#if defined(TARG_SL)
} else if (opr == OPR_PARM && !WN_Parm_By_Reference(wn1) &&
!WN_Parm_Dereference(wn1)) {
-#else
- } else if (opr == OPR_PARM && !WN_Parm_By_Reference(wn1)) {
-#endif
// It has no alias info.
am->Set_id(wn2, 0); // cancel the original alias info in wn2
return;
Modified: trunk/osprey/be/com/opt_points_to.h
===================================================================
--- trunk/osprey/be/com/opt_points_to.h 2010-08-25 01:42:50 UTC (rev 3319)
+++ trunk/osprey/be/com/opt_points_to.h 2010-08-25 02:12:27 UTC (rev 3320)
@@ -917,6 +917,7 @@
if(INTRN_copy_addr(WN_intrinsic(wn)))
return Find_addr_recur(WN_kid0(WN_kid0(wn)),stab);
return NULL;
+#endif
case OPR_PARM:
if ((WN_Parm_By_Reference(wn) || WN_Parm_Dereference(wn)) &&
WN_kid_count(wn))
@@ -924,14 +925,6 @@
// otherwise, there is no address expression
return NULL;
-#else
- case OPR_PARM:
- // if it is called by reference, LDID is a addr expr
- if (WN_Parm_By_Reference(wn) && WN_kid_count(wn))
- return Find_addr_recur(WN_kid0(wn), stab);
- // otherwise, there is no address expression
- return NULL;
-#endif
case OPR_LDA:
return wn;
case OPR_LDID:
Modified: trunk/osprey/be/opt/opt_alias_analysis.cxx
===================================================================
--- trunk/osprey/be/opt/opt_alias_analysis.cxx 2010-08-25 01:42:50 UTC (rev
3319)
+++ trunk/osprey/be/opt/opt_alias_analysis.cxx 2010-08-25 02:12:27 UTC (rev
3320)
@@ -984,7 +984,7 @@
}
}
break;
-#if defined(TARG_SL)
+
case OPR_PARM:
if( WN_Parm_Dereference(wn) ) {
Simplify_Pointer( WN_kid0(wn), &ai );
@@ -1012,7 +1012,6 @@
}
break;
}
-#endif
case OPR_ISTORE:
case OPR_ISTBITS:
@@ -2315,11 +2314,7 @@
break;
case OPR_PARM:
-#if defined(TARG_SL)
if ( WN_Parm_By_Reference(wn) || WN_Parm_Dereference(wn) ) {
-#else
- if ( WN_Parm_By_Reference(wn) ) {
-#endif
#ifdef KEY
if (WOPT_Enable_New_Vsym_Allocation) {
POINTS_TO pt;
@@ -3215,11 +3210,7 @@
case OPR_PARM:
// generating the mu-list for parameters.
- if ( WN_Parm_By_Reference(wn)
-#if defined(TARG_SL)
- || WN_Parm_Dereference(wn)
-#endif
- ) {
+ if ( WN_Parm_By_Reference(wn) || WN_Parm_Dereference(wn) ) {
occ = Get_occ(wn);
AUX_ID vp_idx = occ->Aux_id();
// With virtual var, PARM only cares about its own vp.
@@ -3370,11 +3361,7 @@
if (OPCODE_is_load(opc) ||
OPCODE_is_store(opc) ||
opr == OPR_LDA ||
-#if defined(TARG_SL)
(opr == OPR_PARM && (WN_Parm_By_Reference(wn) ||
WN_Parm_Dereference(wn)))) {
-#else
- (opr == OPR_PARM && WN_Parm_By_Reference(wn))) {
-#endif
if (OPERATOR_is_scalar_load (opr) || OPERATOR_is_scalar_store (opr) ||
opr == OPR_LDA) {
POINTS_TO *sym_pt = Aux_stab_entry(WN_aux(wn))->Points_to();
@@ -4064,12 +4051,10 @@
OPCODE_name(opc)));
OCC_TAB_ENTRY *occ;
-#if defined(TARG_SL)
+
if (OPERATOR_is_scalar_iload (opr) || opr == OPR_MLOAD ||
(opr == OPR_PARM && WN_Parm_Dereference(wn))) {
-#else
- if (OPERATOR_is_scalar_iload (opr) || opr == OPR_MLOAD) {
-#endif
+
// to be consistent with OPR_ISTORE
occ = Get_occ(wn);
Modified: trunk/osprey/be/opt/opt_emit_template.h
===================================================================
--- trunk/osprey/be/opt/opt_emit_template.h 2010-08-25 01:42:50 UTC (rev
3319)
+++ trunk/osprey/be/opt/opt_emit_template.h 2010-08-25 02:12:27 UTC (rev
3320)
@@ -578,12 +578,8 @@
}
#endif
wn = WN_CreateParm(exp->Dtyp(), wn, exp->Ilod_ty(), exp->Offset());
-#if defined(TARG_SL)
- // avoid cse of implicit aliases stuff, mostly in sl specific intrinsics
+ // avoid cse of implicit aliases stuff
if (WN_Parm_By_Reference(wn) || WN_Parm_Dereference(wn)) {
-#else
- if (WN_Parm_By_Reference(wn)) {
-#endif
POINTS_TO *pt = exp->Points_to(emitter->Opt_stab());
Is_True(pt != NULL, ("Reference parameter has NULL POINTS_TO."));
emitter->Alias_Mgr()->Gen_alias_id(wn, pt);
Modified: trunk/osprey/be/opt/opt_sym.cxx
===================================================================
--- trunk/osprey/be/opt/opt_sym.cxx 2010-08-25 01:42:50 UTC (rev 3319)
+++ trunk/osprey/be/opt/opt_sym.cxx 2010-08-25 02:12:27 UTC (rev 3320)
@@ -369,9 +369,7 @@
// Fix 625656:
// Catch the cases not covered by addr_saved in be/com/opt_addr_flags.cxx.
if (WN_operator(wn) == OPR_PARM && (
-#if defined(TARG_SL)
WN_Parm_Dereference(wn) ||
-#endif
WN_Parm_By_Reference(wn) || WN_Parm_Passed_Not_Saved(wn)))
Collect_addr_passed(WN_kid0(wn));
//
Modified: trunk/osprey/be/opt/opt_wn.cxx
===================================================================
--- trunk/osprey/be/opt/opt_wn.cxx 2010-08-25 01:42:50 UTC (rev 3319)
+++ trunk/osprey/be/opt/opt_wn.cxx 2010-08-25 02:12:27 UTC (rev 3320)
@@ -347,11 +347,7 @@
return TRUE;
}
case OPR_PARM:
-#if defined(TARG_SL)
return (WN_Parm_By_Reference(wn) || WN_Parm_Dereference(wn));
-#else
- return (WN_Parm_By_Reference(wn));
-#endif
default:
return FALSE;
}
Modified: trunk/osprey/common/com/wn_core.h
===================================================================
--- trunk/osprey/common/com/wn_core.h 2010-08-25 01:42:50 UTC (rev 3319)
+++ trunk/osprey/common/com/wn_core.h 2010-08-25 02:12:27 UTC (rev 3320)
@@ -1502,13 +1502,10 @@
#define WN_PARM_NOT_EXPOSED_USE 0x40 /* there is no exposed use */
#define WN_PARM_IS_KILLED 0x80 /* the parameter is killed, for
pass by reference */
+#define WN_PARM_DEREFERENCE 0x100 /* parm is deferenced in callee */
+#define WN_Parm_Dereference(x) (WN_parm_flag(x) & WN_PARM_DEREFERENCE)
+#define WN_Set_Parm_Dereference(x) (WN_parm_flag(x) |=
WN_PARM_DEREFERENCE)
-#if defined(TARG_SL)
-#define WN_PARM_DEREFERENCE 0x100
-#define WN_Parm_Dereference(x) (WN_parm_flag(x) & WN_PARM_DEREFERENCE)
-#define WN_Set_Parm_Dereference(x) (WN_parm_flag(x) |= WN_PARM_DEREFERENCE)
-#endif // TARG_SL
-
#define WN_Parm_By_Reference(x) (WN_parm_flag(x) &
WN_PARM_BY_REFERENCE)
#define WN_Set_Parm_By_Reference(x) (WN_parm_flag(x) |=
WN_PARM_BY_REFERENCE)
#define WN_Parm_By_Value(x) (WN_parm_flag(x) & WN_PARM_BY_VALUE)
Modified: trunk/osprey/wgen/wgen_expr.cxx
===================================================================
--- trunk/osprey/wgen/wgen_expr.cxx 2010-08-25 01:42:50 UTC (rev 3319)
+++ trunk/osprey/wgen/wgen_expr.cxx 2010-08-25 02:12:27 UTC (rev 3320)
@@ -449,37 +449,6 @@
return NULL;
}
-static void WN_Set_Deref_If_Needed(WN *wn) {
- INTRINSIC intrn=WN_intrinsic(wn);
- if (intrinsic_need_deref(intrn)) {
- INTRN_ATTR_EXTEND *p=Get_intrinsic_op_Eattr(intrn);
-
- switch (p->pos) {
- case P0:
- WN_Set_Parm_Dereference(WN_kid(wn,0)); break;
- case P1:
- WN_Set_Parm_Dereference(WN_kid(wn,1)); break;
- case P2:
- WN_Set_Parm_Dereference(WN_kid(wn,2)); break;
- case P3:
- WN_Set_Parm_Dereference(WN_kid(wn,3)); break;
- case P4:
- WN_Set_Parm_Dereference(WN_kid(wn,4)); break;
- case P0_P2:
- WN_Set_Parm_Dereference(WN_kid(wn,0));
WN_Set_Parm_Dereference(WN_kid(wn,2)); break;
- case P1_P3:
- WN_Set_Parm_Dereference(WN_kid(wn,1));
WN_Set_Parm_Dereference(WN_kid(wn,3)); break;
- case P2_P4:
- WN_Set_Parm_Dereference(WN_kid(wn,2));
WN_Set_Parm_Dereference(WN_kid(wn,4)); break;
- case P3_P4:
- WN_Set_Parm_Dereference(WN_kid(wn,3));
WN_Set_Parm_Dereference(WN_kid(wn,4)); break;
- default:
- Is_True(0, ("intrinsic has no extended attribution"));
- }
- }
- return;
-}
-
static int intrinsic_op_extend_kid (int index) {
return intrn_eattr[index].extend_kid;
}
@@ -604,6 +573,47 @@
}
#endif
+static void WN_Set_Deref_If_Needed(WN *wn) {
+ INTRINSIC intrn=WN_intrinsic(wn);
+
+#if defined(TARG_SL)
+ if (intrinsic_need_deref(intrn)) {
+ INTRN_ATTR_EXTEND *p=Get_intrinsic_op_Eattr(intrn);
+
+ switch (p->pos) {
+ case P0:
+ WN_Set_Parm_Dereference(WN_kid(wn,0)); break;
+ case P1:
+ WN_Set_Parm_Dereference(WN_kid(wn,1)); break;
+ case P2:
+ WN_Set_Parm_Dereference(WN_kid(wn,2)); break;
+ case P3:
+ WN_Set_Parm_Dereference(WN_kid(wn,3)); break;
+ case P4:
+ WN_Set_Parm_Dereference(WN_kid(wn,4)); break;
+ case P0_P2:
+ WN_Set_Parm_Dereference(WN_kid(wn,0));
WN_Set_Parm_Dereference(WN_kid(wn,2)); break;
+ case P1_P3:
+ WN_Set_Parm_Dereference(WN_kid(wn,1));
WN_Set_Parm_Dereference(WN_kid(wn,3)); break;
+ case P2_P4:
+ WN_Set_Parm_Dereference(WN_kid(wn,2));
WN_Set_Parm_Dereference(WN_kid(wn,4)); break;
+ case P3_P4:
+ WN_Set_Parm_Dereference(WN_kid(wn,3));
WN_Set_Parm_Dereference(WN_kid(wn,4)); break;
+ default:
+ Is_True(0, ("intrinsic has no extended attribution"));
+ }
+ }
+#elif defined(TARG_X8664)
+ if (intrn == INTRN_LOADLPD || intrn == INTRN_LOADHPD ||
+ intrn == INTRN_LOADLPS || intrn == INTRN_LOADHPS ||
+ intrn == INTRN_LOADUPS || intrn == INTRN_LOADUPS256 ||
+ intrn == INTRN_LOADUPD || intrn == INTRN_LOADUPD256 ||
+ intrn == INTRN_LOADDQU || intrn == INTRN_LOADDQU256) {
+ WN_Set_Parm_Dereference(WN_kid(wn,0));
+ }
+#endif
+}
+
// KEY bug 11288: support for anonymous unions:
// ---------------------------------------------
// GNU3 based front-end:
@@ -9315,9 +9325,8 @@
#endif
wn = WN_Create_Intrinsic (OPR_INTRINSIC_OP, ret_mtype, MTYPE_V,
iopc, num_args, ikids);
-#if defined(TARG_SL)
WN_Set_Deref_If_Needed(wn);
-#endif
+
#ifdef KEY
if (cvt_to != MTYPE_UNKNOWN) // bug 8251
wn = WN_Cvt (ret_mtype, cvt_to, wn);
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