Expr* PrimInliner::obj_shallowCopy() {
// temporary hack, fix when prims have type info
// Fix this Robert, 10/24-95, Lars
Expr* u = genCall(false);
assert(u->isUnknownExpr(), "oops");
return new KlassExpr(parameter(0)->klass(), u->preg(), u->node());
}
Expr* PrimInliner::obj_new() {
// replace generic allocation primitive by size-specific primitive, if possible
Expr* rcvr = parameter(0);
if (!rcvr->isConstantExpr() || !rcvr->constant()->is_klass()) return NULL;
Klass* klass = klassOop(rcvr->constant())->klass_part(); // class being instantiated
if (klass->oop_is_indexable()) return NULL; // would fail (extremely unlikely)
int size = klass->non_indexable_size(); // size in words
if (klass->can_inline_allocation()) {
// These special compiler primitives only work for memOop klasses
int number_of_instance_variables = size - memOopDesc::header_size();
switch (number_of_instance_variables) {
case 0: _pdesc = primitives::new0(); break;
case 1: _pdesc = primitives::new1(); break;
case 2: _pdesc = primitives::new2(); break;
case 3: _pdesc = primitives::new3(); break;
case 4: _pdesc = primitives::new4(); break;
case 5: _pdesc = primitives::new5(); break;
case 6: _pdesc = primitives::new6(); break;
case 7: _pdesc = primitives::new7(); break;
case 8: _pdesc = primitives::new8(); break;
case 9: _pdesc = primitives::new9(); break;
default: ; // use generic primitives
}
}
Expr* u = genCall(true);
return new KlassExpr(klass->as_klassOop(), u->preg(), u->node());
}
void BlockCreateNode::gen() {
BasicNode::gen();
if (block()->primFailBlockScope) {
// must generate block (in primitive fail branch)
assert(!isMemoized(), "shouldn't be memoized");
genCall();
} else if (isMemoized()) {
// test if already created
theAssembler->Comment("test memoized block");
Location t = genHelper->moveToReg(block(), Temp1);
Location t2 = genHelper->loadImmediateOop(deadBlockPR, Temp2, false);
theAssembler->SubCCR(t, t2, G0);
Label* done = theAssembler->BneForward(false);
genCall();
done->define();
} else {
// block has already been created (by initial BlockClone node)
}
}
void PrimInliner::generate() {
Expr* res = NULL;
if (InlinePrims) {
if (ConstantFoldPrims) { res = tryConstantFold(); }
if (res == NULL) { res = tryTypeCheck(); }
if (res == NULL) { res = tryInline(); }
}
if (res == NULL) {
// primitive has not been constant-folded nor inlined
// -> must call primitive at run-time
res = genCall(_pdesc->can_fail());
}
assert(res, "must have result expr");
_exprStack->pop(_pdesc->number_of_parameters()); // pop parameters
_exprStack->push2nd(res, _scope, _bci); // push primitive result
}
/* Generate code for a statement (vardecl, assign, funcall,
* return, if/elseif/else, or while).
*/
void genStmt(node *stmtnode, codelabel *next)
{
switch (stmtnode->internal.type) {
case Nvardecl:
genVardecl(stmtnode);
break;
case Nassign:
genAssign(stmtnode);
break;
case Nfuncall: /* later */
genCall(stmtnode);
break;
case Nreturn:
genReturn(stmtnode, next);
break;
case Nif:
case Nelseif:
genIf(stmtnode, next);
break;
case Nelse:
genStmtList(stmtnode->internal.child[0], next);
break;
case Nwhile:
genWhile(stmtnode, next);
break;
default:
assert(FALSE); /* should never get here */
}
}
static void genFunctions(int tab, int expand,
token_t * e1,
char *mname,
int allowed(), FILE *fp)
{
int i, n, t;
int multiplexed;
symentry_t *sym;
for (i = 0; i < HSIZE; i++)
for (sym = EiC_HTAB[i]; sym; sym = sym->next) {
if ((t = EiC_gettype(sym->type)) == t_eic || sym->nspace != tab)
continue;
if(e1 && e1->Type && ! EiC_sametypes(e1->Type,sym->type))
continue;
if(mname && strcmp(mname,sym->fname) != 0)
continue;
if(allowed && !allowed(t))
continue;
n = 1;
multiplexed = 0;
while (n)
{
if(DoCallBackNames(EiC_getInf(sym->type),fp)) {
int k = 0;
if (!multiplexed)
{
multiplexed = 1;
n = MULTIPLEX;
}
while(k<Ncalls) {
genCallBackFunc(sym->type,k++,fp);
}
}
--n;
}
fputs("static val_t eic_",fp);
fputs(sym->id, fp);
fputs("(void)\n",fp);
fputs("{\n",fp);
fputs("\tval_t v;\n",fp);
/*fputs("\tstatic int nb = 0;\n",fp);*/
if (multiplexed)
{
genMultiCall(sym->type, sym->id, fp);
}
else
{
genCall(sym->type, sym->id, fp);
}
fputs("\n",fp);
fputs("\treturn v;\n",fp);
fputs("}\n\n",fp);
}
}
