C99-like library functions. For now, we only handle __float128
q-suffixed functions. */
- tree tmp, func_0, func_1, func_2, func_cabs, func_frexp;
+ tree tmp, func_1, func_2, func_cabs, func_frexp;
tree func_lround, func_llround, func_scalbn, func_cpow;
memset (quad_decls, 0, sizeof(tree) * (END_BUILTINS + 1));
- /* type (*) (void) */
- func_0 = build_function_type (float128_type_node, void_list_node);
/* type (*) (type) */
tmp = tree_cons (NULL_TREE, float128_type_node, void_list_node);
func_1 = build_function_type (float128_type_node, tmp);
}
}
+/* DSHIFTL(I,J,S) = (I << S) | (J >> (BITSIZE(J) - S))
+ DSHIFTR(I,J,S) = (I << (BITSIZE(I) - S)) | (J >> S)
+ where the right shifts are logical (i.e. 0's are shifted in).
+ Because SHIFT_EXPR's want shifts strictly smaller than the integral
+ type width, we have to special-case both S == 0 and S == BITSIZE(J):
+ DSHIFTL(I,J,0) = I
+ DSHIFTL(I,J,BITSIZE) = J
+ DSHIFTR(I,J,0) = J
+ DSHIFTR(I,J,BITSIZE) = I. */
+
+static void
+gfc_conv_intrinsic_dshift (gfc_se * se, gfc_expr * expr, bool dshiftl)
+{
+ tree type, utype, stype, arg1, arg2, shift, res, left, right;
+ tree args[3], cond, tmp;
+ int bitsize;
+
+ gfc_conv_intrinsic_function_args (se, expr, args, 3);
+
+ gcc_assert (TREE_TYPE (args[0]) == TREE_TYPE (args[1]));
+ type = TREE_TYPE (args[0]);
+ bitsize = TYPE_PRECISION (type);
+ utype = unsigned_type_for (type);
+ stype = TREE_TYPE (args[2]);
+
+ arg1 = gfc_evaluate_now (args[0], &se->pre);
+ arg2 = gfc_evaluate_now (args[1], &se->pre);
+ shift = gfc_evaluate_now (args[2], &se->pre);
+
+ /* The generic case. */
+ tmp = fold_build2_loc (input_location, MINUS_EXPR, stype,
+ build_int_cst (stype, bitsize), shift);
+ left = fold_build2_loc (input_location, LSHIFT_EXPR, type,
+ arg1, dshiftl ? shift : tmp);
+
+ right = fold_build2_loc (input_location, RSHIFT_EXPR, utype,
+ fold_convert (utype, arg2), dshiftl ? tmp : shift);
+ right = fold_convert (type, right);
+
+ res = fold_build2_loc (input_location, BIT_IOR_EXPR, type, left, right);
+
+ /* Special cases. */
+ cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, shift,
+ build_int_cst (stype, 0));
+ res = fold_build3_loc (input_location, COND_EXPR, type, cond,
+ dshiftl ? arg1 : arg2, res);
+
+ cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, shift,
+ build_int_cst (stype, bitsize));
+ res = fold_build3_loc (input_location, COND_EXPR, type, cond,
+ dshiftl ? arg2 : arg1, res);
+
+ se->expr = res;
+}
+
+
/* Positive difference DIM (x, y) = ((x - y) < 0) ? 0 : x - y. */
static void
}
limit = gfc_create_var (gfc_typenode_for_spec (&arrayexpr->ts), "limit");
- n = gfc_validate_kind (arrayexpr->ts.type, arrayexpr->ts.kind, false);
switch (arrayexpr->ts.type)
{
case BT_REAL:
- if (HONOR_INFINITIES (DECL_MODE (limit)))
- {
- REAL_VALUE_TYPE real;
- real_inf (&real);
- tmp = build_real (TREE_TYPE (limit), real);
- }
- else
- tmp = gfc_conv_mpfr_to_tree (gfc_real_kinds[n].huge,
- arrayexpr->ts.kind, 0);
+ tmp = gfc_build_inf_or_huge (TREE_TYPE (limit), arrayexpr->ts.kind);
break;
case BT_INTEGER:
+ n = gfc_validate_kind (arrayexpr->ts.type, arrayexpr->ts.kind, false);
tmp = gfc_conv_mpz_to_tree (gfc_integer_kinds[n].huge,
arrayexpr->ts.kind);
break;
se->expr = convert (type, tmp);
}
+
+/* Generate code for BGE, BGT, BLE and BLT intrinsics. */
+static void
+gfc_conv_intrinsic_bitcomp (gfc_se * se, gfc_expr * expr, enum tree_code op)
+{
+ tree args[2];
+
+ gfc_conv_intrinsic_function_args (se, expr, args, 2);
+
+ /* Convert both arguments to the unsigned type of the same size. */
+ args[0] = fold_convert (unsigned_type_for (TREE_TYPE (args[0])), args[0]);
+ args[1] = fold_convert (unsigned_type_for (TREE_TYPE (args[1])), args[1]);
+
+ /* If they have unequal type size, convert to the larger one. */
+ if (TYPE_PRECISION (TREE_TYPE (args[0]))
+ > TYPE_PRECISION (TREE_TYPE (args[1])))
+ args[1] = fold_convert (TREE_TYPE (args[0]), args[1]);
+ else if (TYPE_PRECISION (TREE_TYPE (args[1]))
+ > TYPE_PRECISION (TREE_TYPE (args[0])))
+ args[0] = fold_convert (TREE_TYPE (args[1]), args[0]);
+
+ /* Now, we compare them. */
+ se->expr = fold_build2_loc (input_location, op, boolean_type_node,
+ args[0], args[1]);
+}
+
+
/* Generate code to perform the specified operation. */
static void
gfc_conv_intrinsic_bitop (gfc_se * se, gfc_expr * expr, enum tree_code op)
se->expr = fold_build2_loc (input_location, BIT_AND_EXPR, type, tmp, mask);
}
-/* RSHIFT (I, SHIFT) = I >> SHIFT
- LSHIFT (I, SHIFT) = I << SHIFT */
static void
-gfc_conv_intrinsic_rlshift (gfc_se * se, gfc_expr * expr, int right_shift)
+gfc_conv_intrinsic_shift (gfc_se * se, gfc_expr * expr, bool right_shift,
+ bool arithmetic)
{
- tree args[2];
+ tree args[2], type, num_bits, cond;
gfc_conv_intrinsic_function_args (se, expr, args, 2);
+ args[0] = gfc_evaluate_now (args[0], &se->pre);
+ args[1] = gfc_evaluate_now (args[1], &se->pre);
+ type = TREE_TYPE (args[0]);
+
+ if (!arithmetic)
+ args[0] = fold_convert (unsigned_type_for (type), args[0]);
+ else
+ gcc_assert (right_shift);
+
se->expr = fold_build2_loc (input_location,
right_shift ? RSHIFT_EXPR : LSHIFT_EXPR,
TREE_TYPE (args[0]), args[0], args[1]);
+
+ if (!arithmetic)
+ se->expr = fold_convert (type, se->expr);
+
+ /* The Fortran standard allows shift widths <= BIT_SIZE(I), whereas
+ gcc requires a shift width < BIT_SIZE(I), so we have to catch this
+ special case. */
+ num_bits = build_int_cst (TREE_TYPE (args[1]), TYPE_PRECISION (type));
+ cond = fold_build2_loc (input_location, GE_EXPR, boolean_type_node,
+ args[1], num_bits);
+
+ se->expr = fold_build3_loc (input_location, COND_EXPR, type, cond,
+ build_int_cst (type, 0), se->expr);
}
/* ISHFT (I, SHIFT) = (abs (shift) >= BIT_SIZE (i))
return clzll ((unsigned long long) (x >> ULLSIZE));
else
return ULL_SIZE + clzll ((unsigned long long) x);
-
where ULL_MAX is the largest value that a ULL_MAX can hold
(0xFFFFFFFFFFFFFFFF for a 64-bit long long type), and ULLSIZE
is the bit-size of the long long type (64 in this example). */
}
+/* MERGE_BITS (I, J, MASK) = (I & MASK) | (I & (~MASK)). */
+
+static void
+gfc_conv_intrinsic_merge_bits (gfc_se * se, gfc_expr * expr)
+{
+ tree args[3], mask, type;
+
+ gfc_conv_intrinsic_function_args (se, expr, args, 3);
+ mask = gfc_evaluate_now (args[2], &se->pre);
+
+ type = TREE_TYPE (args[0]);
+ gcc_assert (TREE_TYPE (args[1]) == type);
+ gcc_assert (TREE_TYPE (mask) == type);
+
+ args[0] = fold_build2_loc (input_location, BIT_AND_EXPR, type, args[0], mask);
+ args[1] = fold_build2_loc (input_location, BIT_AND_EXPR, type, args[1],
+ fold_build1_loc (input_location, BIT_NOT_EXPR,
+ type, mask));
+ se->expr = fold_build2_loc (input_location, BIT_IOR_EXPR, type,
+ args[0], args[1]);
+}
+
+
+/* MASKL(n) = n == 0 ? 0 : (~0) << (BIT_SIZE - n)
+ MASKR(n) = n == BIT_SIZE ? ~0 : ~((~0) << n) */
+
+static void
+gfc_conv_intrinsic_mask (gfc_se * se, gfc_expr * expr, int left)
+{
+ tree arg, allones, type, utype, res, cond, bitsize;
+ int i;
+
+ gfc_conv_intrinsic_function_args (se, expr, &arg, 1);
+ arg = gfc_evaluate_now (arg, &se->pre);
+
+ type = gfc_get_int_type (expr->ts.kind);
+ utype = unsigned_type_for (type);
+
+ i = gfc_validate_kind (BT_INTEGER, expr->ts.kind, false);
+ bitsize = build_int_cst (TREE_TYPE (arg), gfc_integer_kinds[i].bit_size);
+
+ allones = fold_build1_loc (input_location, BIT_NOT_EXPR, utype,
+ build_int_cst (utype, 0));
+
+ if (left)
+ {
+ /* Left-justified mask. */
+ res = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (arg),
+ bitsize, arg);
+ res = fold_build2_loc (input_location, LSHIFT_EXPR, utype, allones,
+ fold_convert (utype, res));
+
+ /* Special case arg == 0, because SHIFT_EXPR wants a shift strictly
+ smaller than type width. */
+ cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, arg,
+ build_int_cst (TREE_TYPE (arg), 0));
+ res = fold_build3_loc (input_location, COND_EXPR, utype, cond,
+ build_int_cst (utype, 0), res);
+ }
+ else
+ {
+ /* Right-justified mask. */
+ res = fold_build2_loc (input_location, LSHIFT_EXPR, utype, allones,
+ fold_convert (utype, arg));
+ res = fold_build1_loc (input_location, BIT_NOT_EXPR, utype, res);
+
+ /* Special case agr == bit_size, because SHIFT_EXPR wants a shift
+ strictly smaller than type width. */
+ cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
+ arg, bitsize);
+ res = fold_build3_loc (input_location, COND_EXPR, utype,
+ cond, allones, res);
+ }
+
+ se->expr = fold_convert (type, res);
+}
+
+
/* FRACTION (s) is translated into frexp (s, &dummy_int). */
static void
gfc_conv_intrinsic_fraction (gfc_se * se, gfc_expr * expr)
nextafter = gfc_builtin_decl_for_float_kind (BUILT_IN_NEXTAFTER, expr->ts.kind);
copysign = gfc_builtin_decl_for_float_kind (BUILT_IN_COPYSIGN, expr->ts.kind);
- huge_val = gfc_builtin_decl_for_float_kind (BUILT_IN_HUGE_VAL, expr->ts.kind);
type = gfc_typenode_for_spec (&expr->ts);
gfc_conv_intrinsic_function_args (se, expr, args, 2);
- tmp = build_call_expr_loc (input_location, copysign, 2,
- build_call_expr_loc (input_location, huge_val, 0),
+
+ huge_val = gfc_build_inf_or_huge (type, expr->ts.kind);
+ tmp = build_call_expr_loc (input_location, copysign, 2, huge_val,
fold_convert (type, args[1]));
se->expr = build_call_expr_loc (input_location, nextafter, 2,
fold_convert (type, args[0]), tmp);
name = &expr->value.function.name[2];
- if (expr->rank > 0 && !expr->inline_noncopying_intrinsic)
+ if (expr->rank > 0)
{
lib = gfc_is_intrinsic_libcall (expr);
if (lib != 0)
gfc_conv_intrinsic_btest (se, expr);
break;
+ case GFC_ISYM_BGE:
+ gfc_conv_intrinsic_bitcomp (se, expr, GE_EXPR);
+ break;
+
+ case GFC_ISYM_BGT:
+ gfc_conv_intrinsic_bitcomp (se, expr, GT_EXPR);
+ break;
+
+ case GFC_ISYM_BLE:
+ gfc_conv_intrinsic_bitcomp (se, expr, LE_EXPR);
+ break;
+
+ case GFC_ISYM_BLT:
+ gfc_conv_intrinsic_bitcomp (se, expr, LT_EXPR);
+ break;
+
case GFC_ISYM_ACHAR:
case GFC_ISYM_CHAR:
gfc_conv_intrinsic_char (se, expr);
gfc_conv_intrinsic_dprod (se, expr);
break;
+ case GFC_ISYM_DSHIFTL:
+ gfc_conv_intrinsic_dshift (se, expr, true);
+ break;
+
+ case GFC_ISYM_DSHIFTR:
+ gfc_conv_intrinsic_dshift (se, expr, false);
+ break;
+
case GFC_ISYM_FDATE:
gfc_conv_intrinsic_fdate (se, expr);
break;
break;
case GFC_ISYM_LSHIFT:
- gfc_conv_intrinsic_rlshift (se, expr, 0);
+ gfc_conv_intrinsic_shift (se, expr, false, false);
break;
case GFC_ISYM_RSHIFT:
- gfc_conv_intrinsic_rlshift (se, expr, 1);
+ gfc_conv_intrinsic_shift (se, expr, true, true);
+ break;
+
+ case GFC_ISYM_SHIFTA:
+ gfc_conv_intrinsic_shift (se, expr, true, true);
+ break;
+
+ case GFC_ISYM_SHIFTL:
+ gfc_conv_intrinsic_shift (se, expr, false, false);
+ break;
+
+ case GFC_ISYM_SHIFTR:
+ gfc_conv_intrinsic_shift (se, expr, true, false);
break;
case GFC_ISYM_ISHFT:
break;
case GFC_ISYM_TRANSPOSE:
- if (se->ss && se->ss->useflags)
- {
- gfc_conv_tmp_array_ref (se);
- gfc_advance_se_ss_chain (se);
- }
- else
- gfc_conv_array_transpose (se, expr->value.function.actual->expr);
+ /* The scalarizer has already been set up for reversed dimension access
+ order ; now we just get the argument value normally. */
+ gfc_conv_expr (se, expr->value.function.actual->expr);
break;
case GFC_ISYM_LEN:
gfc_conv_intrinsic_strcmp (se, expr, LT_EXPR);
break;
+ case GFC_ISYM_MASKL:
+ gfc_conv_intrinsic_mask (se, expr, 1);
+ break;
+
+ case GFC_ISYM_MASKR:
+ gfc_conv_intrinsic_mask (se, expr, 0);
+ break;
+
case GFC_ISYM_MAX:
if (expr->ts.type == BT_CHARACTER)
gfc_conv_intrinsic_minmax_char (se, expr, 1);
gfc_conv_intrinsic_merge (se, expr);
break;
+ case GFC_ISYM_MERGE_BITS:
+ gfc_conv_intrinsic_merge_bits (se, expr);
+ break;
+
case GFC_ISYM_MIN:
if (expr->ts.type == BT_CHARACTER)
gfc_conv_intrinsic_minmax_char (se, expr, -1);
case GFC_ISYM_TRANSFER:
if (se->ss && se->ss->useflags)
- {
- /* Access the previously obtained result. */
- gfc_conv_tmp_array_ref (se);
- gfc_advance_se_ss_chain (se);
- }
+ /* Access the previously obtained result. */
+ gfc_conv_tmp_array_ref (se);
else
gfc_conv_intrinsic_transfer (se, expr);
break;
}
+static gfc_ss *
+walk_inline_intrinsic_transpose (gfc_ss *ss, gfc_expr *expr)
+{
+ gfc_ss *arg_ss, *tmp_ss;
+ gfc_actual_arglist *arg;
+
+ arg = expr->value.function.actual;
+
+ gcc_assert (arg->expr);
+
+ arg_ss = gfc_walk_subexpr (gfc_ss_terminator, arg->expr);
+ gcc_assert (arg_ss != gfc_ss_terminator);
+
+ for (tmp_ss = arg_ss; ; tmp_ss = tmp_ss->next)
+ {
+ if (tmp_ss->type != GFC_SS_SCALAR
+ && tmp_ss->type != GFC_SS_REFERENCE)
+ {
+ int tmp_dim;
+ gfc_ss_info *info;
+
+ info = &tmp_ss->data.info;
+ gcc_assert (info->dimen == 2);
+
+ /* We just invert dimensions. */
+ tmp_dim = info->dim[0];
+ info->dim[0] = info->dim[1];
+ info->dim[1] = tmp_dim;
+ }
+
+ /* Stop when tmp_ss points to the last valid element of the chain... */
+ if (tmp_ss->next == gfc_ss_terminator)
+ break;
+ }
+
+ /* ... so that we can attach the rest of the chain to it. */
+ tmp_ss->next = ss;
+
+ return arg_ss;
+}
+
+
+static gfc_ss *
+walk_inline_intrinsic_function (gfc_ss * ss, gfc_expr * expr)
+{
+
+ switch (expr->value.function.isym->id)
+ {
+ case GFC_ISYM_TRANSPOSE:
+ return walk_inline_intrinsic_transpose (ss, expr);
+
+ default:
+ gcc_unreachable ();
+ }
+ gcc_unreachable ();
+}
+
+
/* This generates code to execute before entering the scalarization loop.
Currently does nothing. */
gfc_walk_intrinsic_libfunc (gfc_ss * ss, gfc_expr * expr)
{
gfc_ss *newss;
+ int n;
gcc_assert (expr->rank > 0);
newss->expr = expr;
newss->next = ss;
newss->data.info.dimen = expr->rank;
+ for (n = 0; n < newss->data.info.dimen; n++)
+ newss->data.info.dim[n] = n;
return newss;
}
+/* Return whether the function call expression EXPR will be expanded
+ inline by gfc_conv_intrinsic_function. */
+
+bool
+gfc_inline_intrinsic_function_p (gfc_expr *expr)
+{
+ if (!expr->value.function.isym)
+ return false;
+
+ switch (expr->value.function.isym->id)
+ {
+ case GFC_ISYM_TRANSPOSE:
+ return true;
+
+ default:
+ return false;
+ }
+}
+
+
/* Returns nonzero if the specified intrinsic function call maps directly to
an external library call. Should only be used for functions that return
arrays. */
gcc_assert (expr->expr_type == EXPR_FUNCTION && expr->value.function.isym);
gcc_assert (expr->rank > 0);
+ if (gfc_inline_intrinsic_function_p (expr))
+ return 0;
+
switch (expr->value.function.isym->id)
{
case GFC_ISYM_ALL:
case GFC_ISYM_SUM:
case GFC_ISYM_SHAPE:
case GFC_ISYM_SPREAD:
- case GFC_ISYM_TRANSPOSE:
case GFC_ISYM_YN2:
/* Ignore absent optional parameters. */
return 1;
gcc_assert (isym);
if (isym->elemental)
- return gfc_walk_elemental_function_args (ss, expr->value.function.actual, GFC_SS_SCALAR);
+ return gfc_walk_elemental_function_args (ss, expr->value.function.actual,
+ GFC_SS_SCALAR);
if (expr->rank == 0)
return ss;
+ if (gfc_inline_intrinsic_function_p (expr))
+ return walk_inline_intrinsic_function (ss, expr);
+
if (gfc_is_intrinsic_libcall (expr))
return gfc_walk_intrinsic_libfunc (ss, expr);
OSDN Git Service
