tree.def (FIXED_POINT_TYPE): New type.

	* tree.def (FIXED_POINT_TYPE): New type.
	(FIXED_CST): New constant.
	(FIXED_CONVERT_EXPR): New expr.
	* doc/c-tree.texi (Types): Document FIXED_POINT_TYPE.
	(Expressions): Document FIXED_CST and FIXED_CONVERT_EXPR.
	* tree.h (struct tree_base): Add saturating_flag.
	Remove one bit of spare for saturating_flag.
	(NUMERICAL_TYPE_CHECK): Support FIXED_POINT_TYPE.
	(NON_SAT_FIXED_POINT_TYPE_P, SAT_FIXED_POINT_TYPE_P,
	FIXED_POINT_TYPE_P): Define.
	(TYPE_SATURATING): Define.
	(TREE_FIXED_CST_PTR, TREE_FIXED_CST): Define.
	(struct tree_fixed_cst): New.
	(TYPE_IBIT, TYPE_FBIT): Define.
	(tree_node): Add fixed_cst.
	(enum tree_index): Add new enumeration values of
	TI_SAT_SFRACT_TYPE, TI_SAT_FRACT_TYPE, TI_SAT_LFRACT_TYPE,
	TI_SAT_LLFRACT_TYPE, TI_SAT_USFRACT_TYPE, TI_SAT_UFRACT_TYPE,
	TI_SAT_ULFRACT_TYPE, TI_SAT_ULLFRACT_TYPE, TI_SFRACT_TYPE,
	TI_FRACT_TYPE, TI_LFRACT_TYPE, TI_LLFRACT_TYPE, TI_USFRACT_TYPE,
	TI_UFRACT_TYPE, TI_ULFRACT_TYPE, TI_ULLFRACT_TYPE,
	TI_SAT_SACCUM_TYPE, TI_SAT_ACCUM_TYPE, TI_SAT_LACCUM_TYPE,
	TI_SAT_LLACCUM_TYPE, TI_SAT_USACCUM_TYPE, TI_SAT_UACCUM_TYPE,
	TI_SAT_ULACCUM_TYPE, TI_SAT_ULLACCUM_TYPE, TI_SACCUM_TYPE,
	TI_ACCUM_TYPE, TI_LACCUM_TYPE, TI_LLACCUM_TYPE, TI_USACCUM_TYPE,
	TI_UACCUM_TYPE, TI_ULACCUM_TYPE, TI_ULLACCUM_TYPE,
	TI_QQ_TYPE, TI_HQ_TYPE,_TYPE, TI_SQ_TYPE, TI_DQ_TYPE, TI_TQ_TYPE,
	TI_UQQ_TYPE, TI_UHQ_TYPE, TI_USQ_TYPE, TI_UDQ_TYPE, TI_UTQ_TYPE,
	TI_SAT_QQ_TYPE, TI_SAT_HQ_TYPE, TI_SAT_SQ_TYPE, TI_SAT_DQ_TYPE,
	TI_SAT_TQ_TYPE, TI_SAT_UQQ_TYPE, TI_SAT_UHQ_TYPE, TI_SAT_USQ_TYPE,
	TI_SAT_UDQ_TYPE, TI_SAT_UTQ_TYPE, TI_HA_TYPE, TI_SA_TYPE, TI_DA_TYPE,
	TI_TA_TYPE, TI_UHA_TYPE, TI_USA_TYPE, TI_UDA_TYPE, TI_UTA_TYPE,
	TI_SAT_HA_TYPE, TI_SAT_SA_TYPE, TI_SAT_DA_TYPE, TI_SAT_TA_TYPE,
	TI_SAT_UHA_TYPE, TI_SAT_USA_TYPE, TI_SAT_UDA_TYPE, TI_SAT_UTA_TYPE.
	(sat_short_fract_type_node, sat_fract_type_node,
	sat_long_fract_type_node, sat_long_long_fract_type_node,
	sat_unsigned_short_fract_type_node, sat_unsigned_fract_type_node,
	sat_unsigned_long_fract_type_node,
	sat_unsigned_long_long_fract_type_node, short_fract_type_node,
	fract_type_node, long_fract_type_node, long_long_fract_type_node,
	unsigned_short_fract_type_node, unsigned_fract_type_node,
	unsigned_long_fract_type_node, unsigned_long_long_fract_type_node,
	sat_short_accum_type_node, sat_accum_type_node,
	sat_long_accum_type_node, sat_long_long_accum_type_node,
	sat_unsigned_short_accum_type_node, sat_unsigned_accum_type_node,
	sat_unsigned_long_accum_type_node,
	sat_unsigned_long_long_accum_type_node, short_accum_type_node,
	accum_type_node, long_accum_type_node, long_long_accum_type_node,
	unsigned_short_accum_type_node, unsigned_accum_type_node,
	unsigned_long_accum_type_node, unsigned_long_long_accum_type_node,
	qq_type_node, hq_type_node, sq_type_node, dq_type_node, tq_type_node,
	uqq_type_node, uhq_type_node, usq_type_node, udq_type_node,
	utq_type_node, sat_qq_type_node, sat_hq_type_node, sat_sq_type_node,
	sat_dq_type_node, sat_tq_type_node, sat_uqq_type_node,
	sat_uhq_type_node, sat_usq_type_node, sat_udq_type_node,
	sat_utq_type_node, ha_type_node, sa_type_node, da_type_node,
	ta_type_node, uha_type_node, usa_type_node, uda_type_node,
	uta_type_node, sat_ha_type_node, sat_sa_type_node, sat_da_type_node,
	sat_ta_type_node, sat_uha_type_node, sat_usa_type_node,
	sat_uda_type_node, sat_uta_type_node): New macro.
	(make_fract_type, make_accum_type): Declare.
	(make_signed_fract_type, make_unsigned_fract_type,
	make_sat_signed_fract_type, make_sat_unsigned_fract_type,
	make_signed_accum_type, make_unsigned_accum_type,
	make_sat_signed_accum_type, make_sat_unsigned_accum_type,
	make_or_reuse_signed_fract_type, make_or_reuse_unsigned_fract_type,
	make_or_reuse_sat_signed_fract_type,
	make_or_reuse_sat_unsigned_fract_type, make_or_reuse_signed_accum_type,
	make_or_reuse_unsigned_accum_type, make_or_reuse_sat_signed_accum_type,
	make_or_reuse_sat_unsigned_accum_type): New macro.
	(fixed_zerop): Declare.
	* defaults.h (SHORT_FRACT_TYPE_SIZE, FRACT_TYPE_SIZE,
	LONG_FRACT_TYPE_SIZE, LONG_LONG_FRACT_TYPE_SIZE,
	SHORT_ACCUM_TYPE_SIZE, ACCUM_TYPE_SIZE, LONG_ACCUM_TYPE_SIZE,
	LONG_LONG_ACCUM_TYPE_SIZE): Define.
	* treestruct.def: Add TS_FIXED_CST.
	* Makefile.in (c-pretty-print.o): Add dependence on fixed-value.h.
	(tree.o): Likewise.
	(tree-dump.o): Likewise.
	(print-tree.o): Likewise.
	(tree-pretty-print.o): Likewise.
	(fold-const.o): Likewise.
	* tree-complex.c (some_nonzerop): Handle FIXED_CST.
	* tree-gimple.c (is_gimple_formal_tmp_rhs): Handle FIXED_CST.
	(is_gimple_min_invariant): Handle FIXED_CST.
	* stor-layout.c (int_mode_for_mode): Handle MODE_FRACT, MODE_UFRACT,
	MODE_ACCUM, MODE_UACCUM, MODE_VECTOR_FRACT, MODE_VECTOR_UFRACT,
	MODE_VECTOR_ACCUM, MODE_VECTOR_UACCUM.
	(layout_type): Handle FIXED_POINT_TYPE.
	(make_fract_type, make_accum_type): New functions.
	* tree-browser.c (browse_tree): Handle FIXED_POINT_TYPE.
	* tree-dump.c (fixed-value.h): New include.
	(dump_fixed): New function.
	(dequeue_and_dump): Handle FIXED_POINT_TYPE and FIXED_CST.
	* tree-inline.c (remap_type_1): Handle FIXED_POINT_TYPE.
	(estimate_num_insns_1): Handle FIXED_CST and FIXED_CONVERT_EXPR.
	* tree-pretty-print.c (fixed-value.h): New include.
	(dump_generic_node): Handle FIXED_POINT_TYPE, FIXED_CST, and
	FIXED_CONVERT_EXPR.
	* tree-scalar-evolution.c (get_scalar_evolution): Handle FIXED_CST.
	* tree-ssa-loop-im.c (for_each_index): Handle FIXED_CST.
	* tree-ssa-pre.c (poolify_tree): Handle FIXED_CST.
	* tree-ssa-reassoc.c (break_up_subtract_bb): We can do reassociation
	for non-saturating fixed-point types.
	(reassociate_bb): Likewise.
	* emit-rtl.c (fixed-value.h): New include.
	(fconst0, fconst1): New array.
	(init_emit_once): Initialize fconst0 and fconst1 for fixed-point modes.
	* tree-vect-generic.c expand_vector_operation): Support
	MODE_VECTOR_FRACT, MODE_VECTOR_UFRACT, MODE_VECTOR_ACCUM, and
	MODE_VECTOR_UACCUM.
	(type_for_widest_vector_mode): Add one parameter for the 
	saturating flag.
	Check scalar FRACT, UFRACT, ACCUM, and UACCUM mode to select their
	vector mode.
	Pass the satp parameter to type_for_mode for fixed-point types.
	(expand_vector_operations_1): Pass the saturating flag to
	type_for_widest_vector_mode.
	Support MODE_VECTOR_FRACT, MODE_VECTOR_UFRACT, MODE_VECTOR_ACCUM,
	and MODE_VECTOR_UACCUM.
	* tree-vect-transform.c (vect_is_simple_cond): Support FIXED_CST.
	(vectorizable_condition): Likewise.
	* tree.c (fixed-value.h): New include.
	(tree_code_size): Support FIXED_CST.
	(build_fixed): New function.
	(build_one_cst): Support FIXED_POINT_TYPE for accum types.
	(fixed_zerop): New function.
	(tree_node_structure): Support FIXED_CST.
	(type_contains_placeholder_1): Support FIXED_POINT_TYPE.
	(build_type_attribute_qual_variant): Handle FIXED_POINT_TYPE.
	(type_hash_eq): Handle FIXED_POINT_TYPE.
	(simple_cst_equal): Support FIXED_CST.
	(iterative_hash_expr): Handle FIXED_CST.
	(get_unwidened): Make sure type is not FIXED_POINT_TYPE.
	(get_narrower): Likewise.
	(variably_modified_type_p): Handle FIXED_POINT_TYPE.
	(make_or_reuse_fract_type, make_or_reuse_accum_type): New functions.
	(build_common_tree_nodes_2): Use MAKE_FIXED_TYPE_NODE_FAMILY and
	MAKE_FIXED_MODE_NODE macros to initialize fixed-point type
	nodes.
	(build_vector_type_for_mode): Handle MODE_VECTOR_FRACT,
	MODE_VECTOR_UFRACT, MODE_VECTOR_ACCUM, MODE_VECTOR_UACCUM.
	(initializer_zerop): Support FIXED_CST.
	(walk_tree): Handle FIXED_CST and FIXED_POINT_TYPE.
	* dwarf2out.c (base_type_die): Use DW_ATE_signed_fixed or
	DW_ATE_unsigned_fixed to describe FIXED_POINT_TYPE.
	(is_base_type): Handle FIXED_POINT_TYPE.
	(add_type_attribute): Handle FIXED_POINT_TYPE.
	(gen_type_die_with_usage): Handle FIXED_POINT_TYPE.
	* print-tree.c (fixed-value.h): New include.
	(print_node_brief): Support FIXED_CST.
	(print_node): Support FIXED_POINT_TYPE and FIXED_CST.
	* c-pretty-print.c (fixed-value.h): New include.
	(pp_c_type_specifier): Handle FIXED_POINT_TYPE.  Need to pass
	TYPE_SATURATING to c_common_type_for_mode for fixed-point modes.
	(pp_c_direct_abstract_declarator): Handle FIXED_POINT_TYPE.
	Support fixed-point types for inner items in VECTOR_TYPE.
	(pp_c_direct_declarator): Likewise.
	(pp_c_declarator): Likewise.
	(pp_c_fixed_constant): New function.
	(pp_c_constant): Handle FIXED_CST.
	(pp_c_primary_expression): Likewise.
	(pp_c_expression): Likewise.
	* fold-const.c (fixed-value.h): New include.
	(negate_expr_p): Return true for FIXED_CST.
	(fold_negate_expr): Support FIXED_CST.
	(split_tree): Support FIXED_CST.
	(const_binop): Support FIXED_CST.
	(fold_convert_const_int_from_fixed): New function to convert from
	fixed to int.
	(fold_convert_const_real_from_fixed): New function to convert from
	fixed to real.
	(fold_convert_const_fixed_from_fixed): New function to convert from
	fixed to another fixed.
	(fold_convert_const_fixed_from_int): New function to convert from
	int to fixed.
	(fold_convert_const_fixed_from_real): New function to convert from
	real to fixed.
	(fold_convert_const): Support conversions from fixed to int, from
	fixed to real, from fixed to fixed, from int to fixed, and from real
	to fixed.
	(fold_convert): Support FIXED_CST and FIXED_POINT_TYPE.
	(operand_equal_p): Support FIXED_CST.
	(make_range): For fixed-point modes, we need to pass the
	saturating flag as the 2nd parameter.
	(tree_swap_operands_p): Handle FIXED_CST.
	(fold_plusminus_mult_expr): For fract modes, we cannot generate
	constant 1.
	(fold_unary): Support FIXED_CONVERT_EXPR.
	(fold_binary): Handle FIXED_CST.
	Make sure the type is not saturating, before associating operations.
	Ex: A + B + C, A * B * C, (A1 * C1) +/- (A2 * C2).
	(tree_expr_nonnegative_warnv_p): Handle FIXED_CST.
	(fold_negate_const): Support FIXED_CST.
	(fold_relational_const): Support FIXED_CST.
	* gimplify.c (omp_firstprivatize_type_sizes): Handle FIXED_POINT_TYPE.
	(gimplify_expr): Handle FIXED_CST.
	(gimplify_type_sizes): Handle FIXED_POINT_TYPE.
	* ipa-prop.c (ipa_callsite_compute_param): Support FIXED_CST.
	* ipa-type-escape.c (type_to_consider): Handle FIXED_POINT_TYPE.
	* doc/tm.texi (Type Layout): Document SHORT_FRACT_TYPE_SIZE,
	FRACT_TYPE_SIZE, LONG_FRACT_TYPE_SIZE, LONG_LONG_FRACT_TYPE_SIZE,
	SHORT_ACCUM_TYPE_SIZE, ACCUM_TYPE_SIZE, LONG_ACCUM_TYPE_SIZE,
	LONG_LONG_ACCUM_TYPE_SIZE.
	* dbxout.c (dbxout_type): Handle FIXED_POINT_TYPE.
	* c-aux-info.c (gen_type): Handle FIXED_POINT_TYPE.
	* tree-sra.c (is_sra_scalar_type): Support FIXED_POINT_TYPE.
	* expmed.c (extract_bit_field): Support MODE_FRACT, MODE_UFRACT,
	MODE_ACCUM, and MODE_UACCUM.
	* tree-vectorizer.c (vect_is_simple_reduction): Check for saturating
	fixed-point types to disable reduction.
	* explow.c (promote_mode): Support FIXED_POINT_TYPE.

From-SVN: r127306

1 files changed, 31 insertions, 6 deletions

diff --git a/gcc/tree-vect-generic.c b/gcc/tree-vect-generic.c
index b30915e..aa67325 100644
--- a/gcc/tree-vect-generic.c
+++ b/gcc/tree-vect-generic.c
@@ -295,7 +295,11 @@ expand_vector_operation (block_stmt_iterator *bsi, tree type, tree compute_type,
      a BLKmode vector to smaller, hardware-supported vectors), we may want
      to expand the operations in parallel.  */
   if (GET_MODE_CLASS (compute_mode) != MODE_VECTOR_INT
-      && GET_MODE_CLASS (compute_mode) != MODE_VECTOR_FLOAT)
+      && GET_MODE_CLASS (compute_mode) != MODE_VECTOR_FLOAT
+      && GET_MODE_CLASS (compute_mode) != MODE_VECTOR_FRACT
+      && GET_MODE_CLASS (compute_mode) != MODE_VECTOR_UFRACT
+      && GET_MODE_CLASS (compute_mode) != MODE_VECTOR_ACCUM
+      && GET_MODE_CLASS (compute_mode) != MODE_VECTOR_UACCUM)
     switch (code)
       {
       case PLUS_EXPR:
@@ -340,15 +344,25 @@ expand_vector_operation (block_stmt_iterator *bsi, tree type, tree compute_type,
 }
 
 /* Return a type for the widest vector mode whose components are of mode
-   INNER_MODE, or NULL_TREE if none is found.  */
+   INNER_MODE, or NULL_TREE if none is found.
+   SATP is true for saturating fixed-point types.  */
+
 static tree
-type_for_widest_vector_mode (enum machine_mode inner_mode, optab op)
+type_for_widest_vector_mode (enum machine_mode inner_mode, optab op, int satp)
 {
   enum machine_mode best_mode = VOIDmode, mode;
   int best_nunits = 0;
 
   if (SCALAR_FLOAT_MODE_P (inner_mode))
     mode = MIN_MODE_VECTOR_FLOAT;
+  else if (SCALAR_FRACT_MODE_P (inner_mode))
+    mode = MIN_MODE_VECTOR_FRACT;
+  else if (SCALAR_UFRACT_MODE_P (inner_mode))
+    mode = MIN_MODE_VECTOR_UFRACT;
+  else if (SCALAR_ACCUM_MODE_P (inner_mode))
+    mode = MIN_MODE_VECTOR_ACCUM;
+  else if (SCALAR_UACCUM_MODE_P (inner_mode))
+    mode = MIN_MODE_VECTOR_UACCUM;
   else
     mode = MIN_MODE_VECTOR_INT;
 
@@ -361,7 +375,13 @@ type_for_widest_vector_mode (enum machine_mode inner_mode, optab op)
   if (best_mode == VOIDmode)
     return NULL_TREE;
   else
-    return lang_hooks.types.type_for_mode (best_mode, 1);
+    {
+      /* For fixed-point modes, we need to pass satp as the 2nd parameter.  */
+      if (ALL_FIXED_POINT_MODE_P (best_mode))
+	return lang_hooks.types.type_for_mode (best_mode, satp);
+
+      return lang_hooks.types.type_for_mode (best_mode, 1);
+    }
 }
 
 /* Process one statement.  If we identify a vector operation, expand it.  */
@@ -445,7 +465,8 @@ expand_vector_operations_1 (block_stmt_iterator *bsi)
   if (TYPE_MODE (type) == BLKmode && op)
     {
       tree vector_compute_type
-        = type_for_widest_vector_mode (TYPE_MODE (TREE_TYPE (type)), op);
+        = type_for_widest_vector_mode (TYPE_MODE (TREE_TYPE (type)), op,
+				       TYPE_SATURATING (TREE_TYPE (type)));
       if (vector_compute_type != NULL_TREE)
         compute_type = vector_compute_type;
     }
@@ -457,7 +478,11 @@ expand_vector_operations_1 (block_stmt_iterator *bsi)
     {
       compute_mode = TYPE_MODE (compute_type);
       if ((GET_MODE_CLASS (compute_mode) == MODE_VECTOR_INT
-	   || GET_MODE_CLASS (compute_mode) == MODE_VECTOR_FLOAT)
+	   || GET_MODE_CLASS (compute_mode) == MODE_VECTOR_FLOAT
+	   || GET_MODE_CLASS (compute_mode) == MODE_VECTOR_FRACT
+	   || GET_MODE_CLASS (compute_mode) == MODE_VECTOR_UFRACT
+	   || GET_MODE_CLASS (compute_mode) == MODE_VECTOR_ACCUM
+	   || GET_MODE_CLASS (compute_mode) == MODE_VECTOR_UACCUM)
           && op != NULL
 	  && op->handlers[compute_mode].insn_code != CODE_FOR_nothing)
 	return;