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1.1
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1.1.1.1
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1.1.1.1.2.1
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desc
@@


1.1
log
@Initial revision
@
text
@// Components for element-wise operations on data-parallel objects -*- C++ -*-

// Copyright (C) 2020-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library 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.

// This library 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @@file experimental/simd
 *  This is a TS C++ Library header.
 */

//
// N4773 §9 data-parallel types library
//

#ifndef _GLIBCXX_EXPERIMENTAL_SIMD
#define _GLIBCXX_EXPERIMENTAL_SIMD

#if __cplusplus >= 201703L

/** @@defgroup par-ts Parallelism TS
 *  @@ingroup experimental
 *
 * Components defined by the _C++ Extensions for Parallelism_
 * Technical Specification.
 *
 * - ISO/IEC TS 19570:2015 C++ Extensions for Parallelism
 * - ISO/IEC TS 19570:2018 C++ Extensions for Parallelism, Version 2
 */

/** @@defgroup ts_simd Data parallel extensions
 *  @@ingroup par-ts
 *
 *  Data-parallel types library.
 *  @@since C++17
 */
/// @@ingroup ts_simd
#define __cpp_lib_experimental_parallel_simd 201803

#pragma GCC diagnostic push
// Many [[gnu::vector_size(N)]] types might lead to a -Wpsabi warning which is
// irrelevant as those functions never appear on ABI borders
#ifndef __clang__
#pragma GCC diagnostic ignored "-Wpsabi"
#endif

// If __OPTIMIZE__ is not defined some intrinsics are defined as macros, making
// use of C casts internally. This requires us to disable the warning as it
// would otherwise yield many false positives.
#ifndef __OPTIMIZE__
#pragma GCC diagnostic ignored "-Wold-style-cast"
#endif

#include "bits/simd_detail.h"
#include "bits/simd.h"
#include "bits/simd_fixed_size.h"
#include "bits/simd_scalar.h"
#include "bits/simd_builtin.h"
#include "bits/simd_converter.h"
#if _GLIBCXX_SIMD_X86INTRIN
#include "bits/simd_x86.h"
#elif _GLIBCXX_SIMD_HAVE_NEON
#include "bits/simd_neon.h"
#elif __ALTIVEC__
#include "bits/simd_ppc.h"
#endif
#include "bits/simd_math.h"

#pragma GCC diagnostic pop

#endif // C++17
#endif // _GLIBCXX_EXPERIMENTAL_SIMD
// vim: ft=cpp
@


1.1.1.1
log
@initial import of GCC 12.3.0.

major changes in GCC 11 included:

- The default mode for C++ is now -std=gnu++17 instead of -std=gnu++14.
- When building GCC itself, the host compiler must now support C++11,
  rather than C++98.
- Some short options of the gcov tool have been renamed: -i to -j and
  -j to -H.
- ThreadSanitizer improvements.
- Introduce Hardware-assisted AddressSanitizer support.
- For targets that produce DWARF debugging information GCC now defaults
  to DWARF version 5. This can produce up to 25% more compact debug
  information compared to earlier versions.
- Many optimisations.
- The existing malloc attribute has been extended so that it can be
  used to identify allocator/deallocator API pairs. A pair of new
  -Wmismatched-dealloc and -Wmismatched-new-delete warnings are added.
- Other new warnings:
  -Wsizeof-array-div, enabled by -Wall, warns about divisions of two
    sizeof operators when the first one is applied to an array and the
    divisor does not equal the size of the array element.
  -Wstringop-overread, enabled by default, warns about calls to string
    functions reading past the end of the arrays passed to them as
    arguments.
  -Wtsan, enabled by default, warns about unsupported features in
    ThreadSanitizer (currently std::atomic_thread_fence).
- Enchanced warnings:
  -Wfree-nonheap-object detects many more instances of calls to
    deallocation functions with pointers not returned from a dynamic
    memory allocation function.
  -Wmaybe-uninitialized diagnoses passing pointers or references to
    uninitialized memory to functions taking const-qualified arguments.
  -Wuninitialized detects reads from uninitialized dynamically
    allocated memory.
  -Warray-parameter warns about functions with inconsistent array forms.
  -Wvla-parameter warns about functions with inconsistent VLA forms.
- Several new features from the upcoming C2X revision of the ISO C
  standard are supported with -std=c2x and -std=gnu2x.
- Several C++20 features have been implemented.
- The C++ front end has experimental support for some of the upcoming
  C++23 draft.
- Several new C++ warnings.
- Enhanced Arm, AArch64, x86, and RISC-V CPU support.
- The implementation of how program state is tracked within
  -fanalyzer has been completely rewritten with many enhancements.

see https://gcc.gnu.org/gcc-11/changes.html for a full list.

major changes in GCC 12 include:

- An ABI incompatibility between C and C++ when passing or returning
  by value certain aggregates containing zero width bit-fields has
  been discovered on various targets. x86-64, ARM and AArch64
  will always ignore them (so there is a C ABI incompatibility
  between GCC 11 and earlier with GCC 12 or later), PowerPC64 ELFv2
  always take them into account (so there is a C++ ABI
  incompatibility, GCC 4.4 and earlier compatible with GCC 12 or
  later, incompatible with GCC 4.5 through GCC 11). RISC-V has
  changed the handling of these already starting with GCC 10. As
  the ABI requires, MIPS takes them into account handling function
  return values so there is a C++ ABI incompatibility with GCC 4.5
  through 11.
- STABS: Support for emitting the STABS debugging format is
  deprecated and will be removed in the next release. All ports now
  default to emit DWARF (version 2 or later) debugging info or are
  obsoleted.
- Vectorization is enabled at -O2 which is now equivalent to the
  original -O2 -ftree-vectorize -fvect-cost-model=very-cheap.
- GCC now supports the ShadowCallStack sanitizer.
- Support for __builtin_shufflevector compatible with the clang
  language extension was added.
- Support for attribute unavailable was added.
- Support for __builtin_dynamic_object_size compatible with the
  clang language extension was added.
- New warnings:
  -Wbidi-chars warns about potentially misleading UTF-8
    bidirectional control characters.
  -Warray-compare warns about comparisons between two operands of
    array type.
- Some new features from the upcoming C2X revision of the ISO C
  standard are supported with -std=c2x and -std=gnu2x.
- Several C++23 features have been implemented.
- Many C++ enhancements across warnings and -f options.

see https://gcc.gnu.org/gcc-12/changes.html for a full list.
@
text
@@


1.1.1.1.2.1
log
@Sync with HEAD
@
text
@d3 1
a3 1
// Copyright (C) 2020-2024 Free Software Foundation, Inc.
a35 2
#include <bits/requires_hosted.h> // experimental is currently omitted

a80 3
#if _GLIBCXX_SIMD_HAVE_SVE
#include "bits/simd_sve.h"
#endif
@


1.1.1.2
log
@initial import of GCC 14.3.0.

major changes in GCC 13:
- improved sanitizer
- zstd debug info compression
- LTO improvements
- SARIF based diagnostic support
- new warnings: -Wxor-used-as-pow, -Wenum-int-mismatch, -Wself-move,
  -Wdangling-reference
- many new -Wanalyzer* specific warnings
- enhanced warnings: -Wpessimizing-move, -Wredundant-move
- new attributes to mark file descriptors, c++23 "assume"
- several C23 features added
- several C++23 features added
- many new features for Arm, x86, RISC-V

major changes in GCC 14:
- more strict C99 or newer support
- ia64* marked deprecated (but seemingly still in GCC 15.)
- several new hardening features
- support for "hardbool", which can have user supplied values of true/false
- explicit support for stack scrubbing upon function exit
- better auto-vectorisation support
- added clang-compatible __has_feature and __has_extension
- more C23, including -std=c23
- several C++26 features added
- better diagnostics in C++ templates
- new warnings: -Wnrvo, Welaborated-enum-base
- many new features for Arm, x86, RISC-V
- possible ABI breaking change for SPARC64 and small structures with arrays
  of floats.
@
text
@d3 1
a3 1
// Copyright (C) 2020-2024 Free Software Foundation, Inc.
a35 2
#include <bits/requires_hosted.h> // experimental is currently omitted

a80 3
#if _GLIBCXX_SIMD_HAVE_SVE
#include "bits/simd_sve.h"
#endif
@