From b9de1157289455b0ca26daff519d4a0ddcd1fa13 Mon Sep 17 00:00:00 2001 From: Dan Albert Date: Wed, 24 Feb 2016 13:48:45 -0800 Subject: Update 4.8.1 to 4.8.3. My previous drop was the wrong version. The platform mingw is currently using 4.8.3, not 4.8.1 (not sure how I got that wrong). From ftp://ftp.gnu.org/gnu/gcc/gcc-4.8.3/gcc-4.8.3.tar.bz2. Bug: http://b/26523949 Change-Id: Id85f1bdcbbaf78c7d0b5a69e74c798a08f341c35 --- gcc-4.8.3/gcc/ada/gcc-interface/targtyps.c | 266 +++++++++++++++++++++++++++++ 1 file changed, 266 insertions(+) create mode 100644 gcc-4.8.3/gcc/ada/gcc-interface/targtyps.c (limited to 'gcc-4.8.3/gcc/ada/gcc-interface/targtyps.c') diff --git a/gcc-4.8.3/gcc/ada/gcc-interface/targtyps.c b/gcc-4.8.3/gcc/ada/gcc-interface/targtyps.c new file mode 100644 index 000000000..cfc45e7fe --- /dev/null +++ b/gcc-4.8.3/gcc/ada/gcc-interface/targtyps.c @@ -0,0 +1,266 @@ +/**************************************************************************** + * * + * GNAT COMPILER COMPONENTS * + * * + * T A R G T Y P S * + * * + * Body * + * * + * Copyright (C) 1992-2012, Free Software Foundation, Inc. * + * * + * GNAT is free software; you can redistribute it and/or modify it under * + * terms of the GNU General Public License as published by the Free Soft- * + * ware Foundation; either version 3, or (at your option) any later ver- * + * sion. GNAT is distributed in the hope that it will be useful, but WITH- * + * OUT 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 distributed with GNAT; see file COPYING3. If not see * + * . * + * * + * GNAT was originally developed by the GNAT team at New York University. * + * Extensive contributions were provided by Ada Core Technologies Inc. * + * * + ****************************************************************************/ + +/* Functions for retrieving target types. See Ada package Get_Targ */ + +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "tree.h" +#include "tm.h" +#include "tm_p.h" + +#include "ada.h" +#include "types.h" +#include "atree.h" +#include "elists.h" +#include "namet.h" +#include "nlists.h" +#include "snames.h" +#include "stringt.h" +#include "uintp.h" +#include "urealp.h" +#include "fe.h" +#include "sinfo.h" +#include "einfo.h" +#include "ada-tree.h" +#include "gigi.h" + +/* If we don't have a specific size for Ada's equivalent of `long', use that + of C. */ +#ifndef ADA_LONG_TYPE_SIZE +#define ADA_LONG_TYPE_SIZE LONG_TYPE_SIZE +#endif + +/* If we don't have a target definition of WIDEST_HARDWARE_FP_SIZE, assume + DOUBLE_TYPE_SIZE. We used to default to LONG_DOUBLE_TYPE_SIZE, which now + most often maps 128 bits implemented with very inefficient software + emulations so is incorrect as a hardware size estimate. */ + +#ifndef WIDEST_HARDWARE_FP_SIZE +#define WIDEST_HARDWARE_FP_SIZE DOUBLE_TYPE_SIZE +#endif + +/* The following provide a functional interface for the front end Ada code + to determine the sizes that are used for various C types. */ + +Pos +get_target_bits_per_unit (void) +{ + return BITS_PER_UNIT; +} + +Pos +get_target_bits_per_word (void) +{ + return BITS_PER_WORD; +} + +Pos +get_target_char_size (void) +{ + return CHAR_TYPE_SIZE; +} + +Pos +get_target_wchar_t_size (void) +{ + /* We never want wide characters less than "short" in Ada. */ + return MAX (SHORT_TYPE_SIZE, WCHAR_TYPE_SIZE); +} + +Pos +get_target_short_size (void) +{ + return SHORT_TYPE_SIZE; +} + +Pos +get_target_int_size (void) +{ + return INT_TYPE_SIZE; +} + +Pos +get_target_long_size (void) +{ + return ADA_LONG_TYPE_SIZE; +} + +Pos +get_target_long_long_size (void) +{ + return LONG_LONG_TYPE_SIZE; +} + +Pos +get_target_float_size (void) +{ + return fp_prec_to_size (FLOAT_TYPE_SIZE); +} + +Pos +get_target_double_size (void) +{ + return fp_prec_to_size (DOUBLE_TYPE_SIZE); +} + +Pos +get_target_long_double_size (void) +{ + return fp_prec_to_size (WIDEST_HARDWARE_FP_SIZE); +} + +Pos +get_target_pointer_size (void) +{ + return POINTER_SIZE; +} + +/* Alignment related values, mapped to attributes for functional and + documentation purposes. */ + +/* Standard'Maximum_Default_Alignment. Maximum alignment that the compiler + might choose by default for a type or object. + + Stricter alignment requests trigger gigi's aligning_type circuitry for + stack objects or objects allocated by the default allocator. */ + +Pos +get_target_maximum_default_alignment (void) +{ + return BIGGEST_ALIGNMENT / BITS_PER_UNIT; +} + +/* Standard'System_Allocator_Alignment. Alignment guaranteed to be honored + by the default allocator (System.Memory.Alloc or malloc if we have no + run-time library at hand). + + Stricter alignment requests trigger gigi's aligning_type circuitry for + objects allocated by the default allocator. */ + +/* ??? Need a way to get info about __gnat_malloc from here (whether it is + handy and what alignment it honors). In the meantime, resort to malloc + considerations only. */ + +/* Account for MALLOC_OBSERVABLE_ALIGNMENTs here. Use this or the ABI + guaranteed alignment if greater. */ + +#ifdef MALLOC_OBSERVABLE_ALIGNMENT +#define MALLOC_ALIGNMENT MALLOC_OBSERVABLE_ALIGNMENT +#else +#define MALLOC_OBSERVABLE_ALIGNMENT (2 * LONG_TYPE_SIZE) +#define MALLOC_ALIGNMENT \ + MAX (MALLOC_ABI_ALIGNMENT, MALLOC_OBSERVABLE_ALIGNMENT) +#endif + +Pos +get_target_system_allocator_alignment (void) +{ + return MALLOC_ALIGNMENT / BITS_PER_UNIT; +} + +/* Standard'Maximum_Allowed_Alignment. Maximum alignment that we may + accept for any type or object. */ + +#ifndef MAX_OFILE_ALIGNMENT +#define MAX_OFILE_ALIGNMENT BIGGEST_ALIGNMENT +#endif + +Pos +get_target_maximum_allowed_alignment (void) +{ + return MAX_OFILE_ALIGNMENT / BITS_PER_UNIT; +} + +/* Standard'Maximum_Alignment. The single attribute initially made + available, now a synonym of Standard'Maximum_Default_Alignment. */ + +Pos +get_target_maximum_alignment (void) +{ + return get_target_maximum_default_alignment (); +} + +#ifndef FLOAT_WORDS_BIG_ENDIAN +#define FLOAT_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN +#endif + +Nat +get_float_words_be (void) +{ + return FLOAT_WORDS_BIG_ENDIAN; +} + +Nat +get_words_be (void) +{ + return WORDS_BIG_ENDIAN; +} + +Nat +get_bytes_be (void) +{ + return BYTES_BIG_ENDIAN; +} + +Nat +get_bits_be (void) +{ + return BITS_BIG_ENDIAN; +} + +Nat +get_target_strict_alignment (void) +{ + return STRICT_ALIGNMENT; +} + +Nat +get_target_double_float_alignment (void) +{ +#ifdef TARGET_ALIGN_NATURAL + /* This macro is only defined by the rs6000 port. */ + if (!TARGET_ALIGN_NATURAL + && (DEFAULT_ABI == ABI_AIX || DEFAULT_ABI == ABI_DARWIN)) + return 32 / BITS_PER_UNIT; +#endif + return 0; +} + +Nat +get_target_double_scalar_alignment (void) +{ +#ifdef TARGET_ALIGN_DOUBLE + /* This macro is only defined by the i386 and sh ports. */ + if (!TARGET_ALIGN_DOUBLE +#ifdef TARGET_64BIT + && !TARGET_64BIT +#endif + ) + return 32 / BITS_PER_UNIT; +#endif + return 0; +} -- cgit v1.2.3