/* Return a tree expression for a call to the overloaded builtin
function OB_FNDECL at LOC with arguments PASSED_ARGLIST. */
tree
s390_resolve_overloaded_builtin (location_t loc,
tree ob_fndecl,
void *passed_arglist)
{
vec<tree, va_gc> *arglist = static_cast<vec<tree, va_gc> *> (passed_arglist);
unsigned int in_args_num = vec_safe_length (arglist);
unsigned int ob_args_num = 0;
unsigned int ob_fcode = DECL_FUNCTION_CODE (ob_fndecl);
enum s390_overloaded_builtin_vars bindex;
unsigned int i;
int last_match_type = INT_MAX;
int last_match_index = -1;
unsigned int all_op_flags;
int num_matches = 0;
tree target_builtin_decl, b_arg_chain, return_type;
enum s390_builtin_ov_type_index last_match_fntype_index;
if (TARGET_DEBUG_ARG)
fprintf (stderr,
"s390_resolve_overloaded_builtin, code = %4d, %s - %s overloaded\n",
(int)ob_fcode, IDENTIFIER_POINTER (DECL_NAME (ob_fndecl)),
ob_fcode < S390_BUILTIN_MAX ? "not" : "");
/* 0...S390_BUILTIN_MAX-1 is for non-overloaded builtins. */
if (ob_fcode < S390_BUILTIN_MAX)
{
if (bflags_for_builtin(ob_fcode) & B_INT)
{
error_at (loc,
"Builtin %qF is for GCC internal use only.",
ob_fndecl);
return error_mark_node;
}
return NULL_TREE;
}
ob_fcode -= S390_BUILTIN_MAX;
for (b_arg_chain = TYPE_ARG_TYPES (TREE_TYPE (ob_fndecl));
!VOID_TYPE_P (TREE_VALUE (b_arg_chain));
b_arg_chain = TREE_CHAIN (b_arg_chain))
ob_args_num++;
if (ob_args_num != in_args_num)
{
error_at (loc,
"Mismatch in number of arguments for builtin %qF. "
"Expected: %d got %d", ob_fndecl,
ob_args_num, in_args_num);
return error_mark_node;
}
for (i = 0; i < in_args_num; i++)
if ((*arglist)[i] == error_mark_node)
return error_mark_node;
/* Overloaded builtins without any variants are directly expanded here. */
if (desc_start_for_overloaded_builtin[ob_fcode] ==
S390_OVERLOADED_BUILTIN_VAR_MAX)
return s390_expand_overloaded_builtin (loc, ob_fcode, arglist, NULL_TREE);
for (bindex = desc_start_for_overloaded_builtin[ob_fcode];
bindex <= desc_end_for_overloaded_builtin[ob_fcode];
bindex = (enum s390_overloaded_builtin_vars)((int)bindex + 1))
{
int match_type;
enum s390_builtin_ov_type_index type_index =
type_for_overloaded_builtin_var[bindex];
if (TARGET_DEBUG_ARG)
fprintf (stderr, "checking variant number: %d", (int)bindex);
match_type = s390_fn_types_compatible (type_index, arglist);
if (match_type == INT_MAX)
continue;
if (TARGET_DEBUG_ARG)
fprintf (stderr,
" %s match score: %d\n", match_type == 0 ? "perfect" : "imperfect",
match_type);
if (match_type < last_match_type)
{
num_matches = 1;
last_match_type = match_type;
last_match_fntype_index = type_index;
last_match_index = bindex;
}
else if (match_type == last_match_type)
num_matches++;
}
if (last_match_type == INT_MAX)
{
error_at (loc, "invalid parameter combination for intrinsic %qs",
IDENTIFIER_POINTER (DECL_NAME (ob_fndecl)));
return error_mark_node;
}
else if (num_matches > 1)
{
error_at (loc, "ambiguous overload for intrinsic %qs",
IDENTIFIER_POINTER (DECL_NAME (ob_fndecl)));
return error_mark_node;
}
if (bt_for_overloaded_builtin_var[last_match_index] == S390_BUILTIN_MAX)
target_builtin_decl = ob_fndecl;
else
target_builtin_decl = s390_builtin_decls[bt_for_overloaded_builtin_var[last_match_index]];
all_op_flags = opflags_overloaded_builtin_var[last_match_index];
return_type = s390_builtin_types[s390_builtin_ov_types[last_match_fntype_index][0]];
/* Check for the operand flags in the overloaded builtin variant. */
for (i = 0; i < ob_args_num; i++)
{
unsigned int op_flags = all_op_flags & ((1 << O_SHIFT) - 1);
tree arg = (*arglist)[i];
tree type = s390_builtin_types[s390_builtin_ov_types[last_match_fntype_index][i + 1]];
all_op_flags = all_op_flags >> O_SHIFT;
if (op_flags == O_ELEM)
{
int n_elem = s390_vec_n_elem (target_builtin_decl);
gcc_assert (n_elem > 0);
gcc_assert (type == integer_type_node);
(*arglist)[i] = build2 (BIT_AND_EXPR, integer_type_node,
fold_convert (integer_type_node, arg),
build_int_cst (NULL_TREE, n_elem - 1));
}
if (TREE_CODE (arg) != INTEGER_CST || !O_IMM_P (op_flags))
continue;
if ((TYPE_UNSIGNED (type)
&& !int_fits_type_p (arg, c_common_unsigned_type (type)))
|| (!TYPE_UNSIGNED (type)
&& !int_fits_type_p (arg, c_common_signed_type (type))))
{
error("constant argument %d for builtin %qF is out "
"of range for target type",
i + 1, target_builtin_decl);
return error_mark_node;
}
if (TREE_CODE (arg) == INTEGER_CST
&& !s390_const_operand_ok (arg, i + 1, op_flags, target_builtin_decl))
return error_mark_node;
}
/* Handle builtins we expand directly - without mapping it to a low
level builtin. */
if (bt_for_overloaded_builtin_var[last_match_index] == S390_BUILTIN_MAX)
return s390_expand_overloaded_builtin (loc, ob_fcode, arglist, return_type);
s390_adjust_builtin_arglist (ob_fcode, target_builtin_decl, &arglist);
if (VOID_TYPE_P (return_type))
return build_function_call_vec (loc, vNULL, target_builtin_decl,
arglist, NULL);
else
return fully_fold_convert (return_type,
build_function_call_vec (loc, vNULL, target_builtin_decl,
arglist, NULL));
}
static tree
avr_resolve_overloaded_builtin (unsigned int iloc, tree fndecl, void *vargs)
{
tree type0, type1, fold = NULL_TREE;
enum avr_builtin_id id = AVR_BUILTIN_COUNT;
location_t loc = (location_t) iloc;
vec<tree, va_gc> &args = * (vec<tree, va_gc>*) vargs;
switch (DECL_FUNCTION_CODE (fndecl))
{
default:
break;
case AVR_BUILTIN_ABSFX:
if (args.length() != 1)
{
error_at (loc, "%qs expects 1 argument but %d given",
"absfx", (int) args.length());
fold = error_mark_node;
break;
}
type0 = TREE_TYPE (args[0]);
if (!FIXED_POINT_TYPE_P (type0))
{
error_at (loc, "%qs expects a fixed-point value as argument",
"absfx");
fold = error_mark_node;
}
switch (TYPE_MODE (type0))
{
case QQmode: id = AVR_BUILTIN_ABSHR; break;
case HQmode: id = AVR_BUILTIN_ABSR; break;
case SQmode: id = AVR_BUILTIN_ABSLR; break;
case DQmode: id = AVR_BUILTIN_ABSLLR; break;
case HAmode: id = AVR_BUILTIN_ABSHK; break;
case SAmode: id = AVR_BUILTIN_ABSK; break;
case DAmode: id = AVR_BUILTIN_ABSLK; break;
case TAmode: id = AVR_BUILTIN_ABSLLK; break;
case UQQmode:
case UHQmode:
case USQmode:
case UDQmode:
case UHAmode:
case USAmode:
case UDAmode:
case UTAmode:
warning_at (loc, 0, "using %qs with unsigned type has no effect",
"absfx");
return args[0];
default:
error_at (loc, "no matching fixed-point overload found for %qs",
"absfx");
fold = error_mark_node;
break;
}
fold = targetm.builtin_decl (id, true);
if (fold != error_mark_node)
fold = build_function_call_vec (loc, vNULL, fold, &args, NULL);
break; // absfx
case AVR_BUILTIN_ROUNDFX:
if (args.length() != 2)
{
error_at (loc, "%qs expects 2 arguments but %d given",
"roundfx", (int) args.length());
fold = error_mark_node;
break;
}
type0 = TREE_TYPE (args[0]);
type1 = TREE_TYPE (args[1]);
if (!FIXED_POINT_TYPE_P (type0))
{
error_at (loc, "%qs expects a fixed-point value as first argument",
"roundfx");
fold = error_mark_node;
}
if (!INTEGRAL_TYPE_P (type1))
{
error_at (loc, "%qs expects an integer value as second argument",
"roundfx");
fold = error_mark_node;
}
switch (TYPE_MODE (type0))
{
case QQmode: id = AVR_BUILTIN_ROUNDHR; break;
case HQmode: id = AVR_BUILTIN_ROUNDR; break;
case SQmode: id = AVR_BUILTIN_ROUNDLR; break;
case DQmode: id = AVR_BUILTIN_ROUNDLLR; break;
case UQQmode: id = AVR_BUILTIN_ROUNDUHR; break;
case UHQmode: id = AVR_BUILTIN_ROUNDUR; break;
case USQmode: id = AVR_BUILTIN_ROUNDULR; break;
case UDQmode: id = AVR_BUILTIN_ROUNDULLR; break;
case HAmode: id = AVR_BUILTIN_ROUNDHK; break;
case SAmode: id = AVR_BUILTIN_ROUNDK; break;
case DAmode: id = AVR_BUILTIN_ROUNDLK; break;
case TAmode: id = AVR_BUILTIN_ROUNDLLK; break;
case UHAmode: id = AVR_BUILTIN_ROUNDUHK; break;
case USAmode: id = AVR_BUILTIN_ROUNDUK; break;
case UDAmode: id = AVR_BUILTIN_ROUNDULK; break;
case UTAmode: id = AVR_BUILTIN_ROUNDULLK; break;
default:
error_at (loc, "no matching fixed-point overload found for %qs",
"roundfx");
fold = error_mark_node;
break;
}
fold = targetm.builtin_decl (id, true);
if (fold != error_mark_node)
fold = build_function_call_vec (loc, vNULL, fold, &args, NULL);
break; // roundfx
case AVR_BUILTIN_COUNTLSFX:
if (args.length() != 1)
{
error_at (loc, "%qs expects 1 argument but %d given",
"countlsfx", (int) args.length());
fold = error_mark_node;
break;
}
type0 = TREE_TYPE (args[0]);
if (!FIXED_POINT_TYPE_P (type0))
{
error_at (loc, "%qs expects a fixed-point value as first argument",
"countlsfx");
fold = error_mark_node;
}
switch (TYPE_MODE (type0))
{
case QQmode: id = AVR_BUILTIN_COUNTLSHR; break;
case HQmode: id = AVR_BUILTIN_COUNTLSR; break;
case SQmode: id = AVR_BUILTIN_COUNTLSLR; break;
case DQmode: id = AVR_BUILTIN_COUNTLSLLR; break;
case UQQmode: id = AVR_BUILTIN_COUNTLSUHR; break;
case UHQmode: id = AVR_BUILTIN_COUNTLSUR; break;
case USQmode: id = AVR_BUILTIN_COUNTLSULR; break;
case UDQmode: id = AVR_BUILTIN_COUNTLSULLR; break;
case HAmode: id = AVR_BUILTIN_COUNTLSHK; break;
case SAmode: id = AVR_BUILTIN_COUNTLSK; break;
case DAmode: id = AVR_BUILTIN_COUNTLSLK; break;
case TAmode: id = AVR_BUILTIN_COUNTLSLLK; break;
case UHAmode: id = AVR_BUILTIN_COUNTLSUHK; break;
case USAmode: id = AVR_BUILTIN_COUNTLSUK; break;
case UDAmode: id = AVR_BUILTIN_COUNTLSULK; break;
case UTAmode: id = AVR_BUILTIN_COUNTLSULLK; break;
default:
error_at (loc, "no matching fixed-point overload found for %qs",
"countlsfx");
fold = error_mark_node;
break;
}
fold = targetm.builtin_decl (id, true);
if (fold != error_mark_node)
fold = build_function_call_vec (loc, vNULL, fold, &args, NULL);
break; // countlsfx
}
return fold;
}
/* target hook for resolve_overloaded_builtin(). Returns a function call
RTX if we can resolve the overloaded builtin */
tree
spu_resolve_overloaded_builtin (location_t loc, tree fndecl, void *passed_args)
{
#define SCALAR_TYPE_P(t) (INTEGRAL_TYPE_P (t) \
|| SCALAR_FLOAT_TYPE_P (t) \
|| POINTER_TYPE_P (t))
vec<tree, va_gc> *fnargs = static_cast <vec<tree, va_gc> *> (passed_args);
unsigned int nargs = vec_safe_length (fnargs);
int new_fcode, fcode = DECL_FUNCTION_CODE (fndecl);
struct spu_builtin_description *desc;
tree match = NULL_TREE;
/* The vector types are not available if the backend is not initialized. */
gcc_assert (!flag_preprocess_only);
desc = &spu_builtins[fcode];
if (desc->type != B_OVERLOAD)
return NULL_TREE;
/* Compare the signature of each internal builtin function with the
function arguments until a match is found. */
for (new_fcode = fcode + 1; spu_builtins[new_fcode].type == B_INTERNAL;
new_fcode++)
{
tree decl = targetm.builtin_decl (new_fcode, true);
tree params = TYPE_ARG_TYPES (TREE_TYPE (decl));
tree param;
bool all_scalar;
unsigned int p;
/* Check whether all parameters are scalar. */
all_scalar = true;
for (param = params; param != void_list_node; param = TREE_CHAIN (param))
if (!SCALAR_TYPE_P (TREE_VALUE (param)))
all_scalar = false;
for (param = params, p = 0;
param != void_list_node;
param = TREE_CHAIN (param), p++)
{
tree var, arg_type, param_type = TREE_VALUE (param);
if (p >= nargs)
{
error ("insufficient arguments to overloaded function %s",
desc->name);
return error_mark_node;
}
var = (*fnargs)[p];
if (TREE_CODE (var) == NON_LVALUE_EXPR)
var = TREE_OPERAND (var, 0);
if (TREE_CODE (var) == ERROR_MARK)
return NULL_TREE; /* Let somebody else deal with the problem. */
arg_type = TREE_TYPE (var);
/* The intrinsics spec does not specify precisely how to
resolve generic intrinsics. We require an exact match
for vector types and let C do it's usual parameter type
checking/promotions for scalar arguments, except for the
first argument of intrinsics which don't have a vector
parameter. */
if ((!SCALAR_TYPE_P (param_type)
|| !SCALAR_TYPE_P (arg_type)
|| (all_scalar && p == 0))
&& !lang_hooks.types_compatible_p (param_type, arg_type))
break;
}
if (param == void_list_node)
{
if (p != nargs)
{
error ("too many arguments to overloaded function %s",
desc->name);
return error_mark_node;
}
match = decl;
break;
}
}
if (match == NULL_TREE)
{
error ("parameter list does not match a valid signature for %s()",
desc->name);
return error_mark_node;
}
return build_function_call_vec (loc, vNULL, match, fnargs, NULL);
#undef SCALAR_TYPE_P
}
