From 1bc5aee63eb72b341f506ad058502cd0361f0d10 Mon Sep 17 00:00:00 2001 From: Ben Cheng Date: Tue, 25 Mar 2014 22:37:19 -0700 Subject: Initial checkin of GCC 4.9.0 from trunk (r208799). Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba --- gcc-4.9/gcc/stor-layout.h | 115 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 gcc-4.9/gcc/stor-layout.h (limited to 'gcc-4.9/gcc/stor-layout.h') diff --git a/gcc-4.9/gcc/stor-layout.h b/gcc-4.9/gcc/stor-layout.h new file mode 100644 index 000000000..74a2c6c44 --- /dev/null +++ b/gcc-4.9/gcc/stor-layout.h @@ -0,0 +1,115 @@ +/* Definitions and declarations for stor-layout.c. + Copyright (C) 2013-2014 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING3. If not see +. */ + +#ifndef GCC_STOR_LAYOUT_H +#define GCC_STOR_LAYOUT_H + +extern void set_min_and_max_values_for_integral_type (tree, int, bool); +extern void fixup_signed_type (tree); +extern void internal_reference_types (void); +extern unsigned int update_alignment_for_field (record_layout_info, tree, + unsigned int); +extern record_layout_info start_record_layout (tree); +extern tree bit_from_pos (tree, tree); +extern tree byte_from_pos (tree, tree); +extern void pos_from_bit (tree *, tree *, unsigned int, tree); +extern void normalize_offset (tree *, tree *, unsigned int); +extern tree rli_size_unit_so_far (record_layout_info); +extern tree rli_size_so_far (record_layout_info); +extern void normalize_rli (record_layout_info); +extern void place_field (record_layout_info, tree); +extern void compute_record_mode (tree); +extern void finish_record_layout (record_layout_info, int); +extern unsigned int element_precision (const_tree); +extern void finalize_size_functions (void); +extern void fixup_unsigned_type (tree); +extern void initialize_sizetypes (void); + +/* Finish up a builtin RECORD_TYPE. Give it a name and provide its + fields. Optionally specify an alignment, and then lay it out. */ +extern void finish_builtin_struct (tree, const char *, tree, tree); + +/* Given a VAR_DECL, PARM_DECL, RESULT_DECL or FIELD_DECL node, + calculates the DECL_SIZE, DECL_SIZE_UNIT, DECL_ALIGN and DECL_MODE + fields. Call this only once for any given decl node. + + Second argument is the boundary that this field can be assumed to + be starting at (in bits). Zero means it can be assumed aligned + on any boundary that may be needed. */ +extern void layout_decl (tree, unsigned); + +/* Given a ..._TYPE node, calculate the TYPE_SIZE, TYPE_SIZE_UNIT, + TYPE_ALIGN and TYPE_MODE fields. If called more than once on one + node, does nothing except for the first time. */ +extern void layout_type (tree); + +/* Construct various nodes representing fract or accum data types. */ +extern tree make_fract_type (int, int, int); +extern tree make_accum_type (int, int, int); + +#define make_signed_fract_type(P) make_fract_type (P, 0, 0) +#define make_unsigned_fract_type(P) make_fract_type (P, 1, 0) +#define make_sat_signed_fract_type(P) make_fract_type (P, 0, 1) +#define make_sat_unsigned_fract_type(P) make_fract_type (P, 1, 1) +#define make_signed_accum_type(P) make_accum_type (P, 0, 0) +#define make_unsigned_accum_type(P) make_accum_type (P, 1, 0) +#define make_sat_signed_accum_type(P) make_accum_type (P, 0, 1) +#define make_sat_unsigned_accum_type(P) make_accum_type (P, 1, 1) + +#define make_or_reuse_signed_fract_type(P) \ + make_or_reuse_fract_type (P, 0, 0) +#define make_or_reuse_unsigned_fract_type(P) \ + make_or_reuse_fract_type (P, 1, 0) +#define make_or_reuse_sat_signed_fract_type(P) \ + make_or_reuse_fract_type (P, 0, 1) +#define make_or_reuse_sat_unsigned_fract_type(P) \ + make_or_reuse_fract_type (P, 1, 1) +#define make_or_reuse_signed_accum_type(P) \ + make_or_reuse_accum_type (P, 0, 0) +#define make_or_reuse_unsigned_accum_type(P) \ + make_or_reuse_accum_type (P, 1, 0) +#define make_or_reuse_sat_signed_accum_type(P) \ + make_or_reuse_accum_type (P, 0, 1) +#define make_or_reuse_sat_unsigned_accum_type(P) \ + make_or_reuse_accum_type (P, 1, 1) + +extern tree make_signed_type (int); +extern tree make_unsigned_type (int); + +/* Return the mode for data of a given size SIZE and mode class CLASS. + If LIMIT is nonzero, then don't use modes bigger than MAX_FIXED_MODE_SIZE. + The value is BLKmode if no other mode is found. This is like + mode_for_size, but is passed a tree. */ +extern enum machine_mode mode_for_size_tree (const_tree, enum mode_class, int); + +/* Given a VAR_DECL, PARM_DECL or RESULT_DECL, clears the results of + a previous call to layout_decl and calls it again. */ +extern void relayout_decl (tree); + +/* variable_size (EXP) is like save_expr (EXP) except that it + is for the special case of something that is part of a + variable size for a data type. It makes special arrangements + to compute the value at the right time when the data type + belongs to a function parameter. */ +extern tree variable_size (tree); + +/* Vector types need to check target flags to determine type. */ +extern enum machine_mode vector_type_mode (const_tree); + +#endif // GCC_STOR_LAYOUT_H -- cgit v1.2.3