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llvm-project/clang/lib/Headers/popcntintrin.h

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Add popcnt feature flag to match gcc. This flag is implied when sse42 is enabled, but can be disabled separately. Move popcnt intrinsics to popcntintrin.h to match gcc. llvm-svn: 147340
2011-12-30 00:10:46 +08:00
/*===---- popcntintrin.h - POPCNT intrinsics -------------------------------===
*
Move the builtin headers to use the new license file header. Summary: These all had somewhat custom file headers with different text from the ones I searched for previously, and so I missed them. Thanks to Hal and Kristina and others who prompted me to fix this, and sorry it took so long. Reviewers: hfinkel Subscribers: mcrosier, javed.absar, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D60406 llvm-svn: 357941
2019-04-09 04:51:30 +08:00
* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
* See https://llvm.org/LICENSE.txt for license information.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
Add popcnt feature flag to match gcc. This flag is implied when sse42 is enabled, but can be disabled separately. Move popcnt intrinsics to popcntintrin.h to match gcc. llvm-svn: 147340
2011-12-30 00:10:46 +08:00
*
*===-----------------------------------------------------------------------===
*/
[X86] Consistently use double underscore at the beginning of the include guards in our intrinsic headers. Most files used double underscore, but a few used single. This converges them all to double. llvm-svn: 330743
2018-04-25 01:40:47 +08:00
#ifndef __POPCNTINTRIN_H
#define __POPCNTINTRIN_H
Add popcnt feature flag to match gcc. This flag is implied when sse42 is enabled, but can be disabled separately. Move popcnt intrinsics to popcntintrin.h to match gcc. llvm-svn: 147340
2011-12-30 00:10:46 +08:00
Use a define for per-file function attributes for the Intel intrinsic headers. This is a precursor to changing them to use the new target attribute code. llvm-svn: 239882
2015-06-17 15:09:20 +08:00
/* Define the default attributes for the functions in this file. */
[X86] Rename DEFAULT_FN_ATTR macro to __DEFAULT_FN_ATTR llvm-svn: 241065
2015-06-30 21:36:19 +08:00
#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("popcnt")))
Use a define for per-file function attributes for the Intel intrinsic headers. This is a precursor to changing them to use the new target attribute code. llvm-svn: 239882
2015-06-17 15:09:20 +08:00
[X86] Enable constexpr on POPCNT intrinsics (PR31446) This is a first step patch to enable constexpr support and testing to a large number of x86 intrinsics. All I've done here is provide a DEFAULT_FN_ATTRS_CONSTEXPR variant to our existing DEFAULT_FN_ATTRS tag approach that adds constexpr on c++ builds. The clang cuda headers do something similar. I've started with POPCNT mainly as its tiny and are wrappers to generic __builtin_* intrinsics which already act as constexpr. Differential Revision: https://reviews.llvm.org/D86229
2020-08-21 04:37:51 +08:00
#if defined(__cplusplus) && (__cplusplus >= 201103L)
#define __DEFAULT_FN_ATTRS_CONSTEXPR __DEFAULT_FN_ATTRS constexpr
#else
#define __DEFAULT_FN_ATTRS_CONSTEXPR __DEFAULT_FN_ATTRS
#endif
Remove \brief commands from doxygen comments. This is similar to the LLVM change https://reviews.llvm.org/D46290. We've been running doxygen with the autobrief option for a couple of years now. This makes the \brief markers into our comments redundant. Since they are a visual distraction and we don't want to encourage more \brief markers in new code either, this patch removes them all. Patch produced by for i in $(git grep -l '\@brief'); do perl -pi -e 's/\@brief //g' $i & done for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done Differential Revision: https://reviews.llvm.org/D46320 llvm-svn: 331834
2018-05-09 09:00:01 +08:00
/// Counts the number of bits in the source operand having a value of 1.
This patch adds doxygen comments for the intrinsincs in the header file popcntintrin.h. The doxygen comments are automatically generated based on Sony's intrinsics documentation. Differential Revision: http://reviews.llvm.org/D17550 llvm-svn: 262385
2016-03-02 04:04:57 +08:00
///
/// \headerfile <x86intrin.h>
///
[DOXYGEN] Improved doxygen comments for x86 intrinsics headers. Tagged instruction names with <c> INSTR_NAME </c> to display them in typewriter font. In the past, \c command was used, unfortunately it applied to only one word. <c> .. </c> has the same meaning, but applies to all words in between the tags. llvm-svn: 289249
2016-12-10 02:35:50 +08:00
/// This intrinsic corresponds to the <c> POPCNT </c> instruction.
This patch adds doxygen comments for the intrinsincs in the header file popcntintrin.h. The doxygen comments are automatically generated based on Sony's intrinsics documentation. Differential Revision: http://reviews.llvm.org/D17550 llvm-svn: 262385
2016-03-02 04:04:57 +08:00
///
/// \param __A
/// An unsigned 32-bit integer operand.
/// \returns A 32-bit integer containing the number of bits with value 1 in the
/// source operand.
[X86] Enable constexpr on POPCNT intrinsics (PR31446) This is a first step patch to enable constexpr support and testing to a large number of x86 intrinsics. All I've done here is provide a DEFAULT_FN_ATTRS_CONSTEXPR variant to our existing DEFAULT_FN_ATTRS tag approach that adds constexpr on c++ builds. The clang cuda headers do something similar. I've started with POPCNT mainly as its tiny and are wrappers to generic __builtin_* intrinsics which already act as constexpr. Differential Revision: https://reviews.llvm.org/D86229
2020-08-21 04:37:51 +08:00
static __inline__ int __DEFAULT_FN_ATTRS_CONSTEXPR
Add popcnt feature flag to match gcc. This flag is implied when sse42 is enabled, but can be disabled separately. Move popcnt intrinsics to popcntintrin.h to match gcc. llvm-svn: 147340
2011-12-30 00:10:46 +08:00
_mm_popcnt_u32(unsigned int __A)
{
return __builtin_popcount(__A);
}
#ifdef __x86_64__
Remove \brief commands from doxygen comments. This is similar to the LLVM change https://reviews.llvm.org/D46290. We've been running doxygen with the autobrief option for a couple of years now. This makes the \brief markers into our comments redundant. Since they are a visual distraction and we don't want to encourage more \brief markers in new code either, this patch removes them all. Patch produced by for i in $(git grep -l '\@brief'); do perl -pi -e 's/\@brief //g' $i & done for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done Differential Revision: https://reviews.llvm.org/D46320 llvm-svn: 331834
2018-05-09 09:00:01 +08:00
/// Counts the number of bits in the source operand having a value of 1.
This patch adds doxygen comments for the intrinsincs in the header file popcntintrin.h. The doxygen comments are automatically generated based on Sony's intrinsics documentation. Differential Revision: http://reviews.llvm.org/D17550 llvm-svn: 262385
2016-03-02 04:04:57 +08:00
///
/// \headerfile <x86intrin.h>
///
[DOXYGEN] Improved doxygen comments for x86 intrinsics headers. Tagged instruction names with <c> INSTR_NAME </c> to display them in typewriter font. In the past, \c command was used, unfortunately it applied to only one word. <c> .. </c> has the same meaning, but applies to all words in between the tags. llvm-svn: 289249
2016-12-10 02:35:50 +08:00
/// This intrinsic corresponds to the <c> POPCNT </c> instruction.
This patch adds doxygen comments for the intrinsincs in the header file popcntintrin.h. The doxygen comments are automatically generated based on Sony's intrinsics documentation. Differential Revision: http://reviews.llvm.org/D17550 llvm-svn: 262385
2016-03-02 04:04:57 +08:00
///
/// \param __A
/// An unsigned 64-bit integer operand.
/// \returns A 64-bit integer containing the number of bits with value 1 in the
/// source operand.
[X86] Enable constexpr on POPCNT intrinsics (PR31446) This is a first step patch to enable constexpr support and testing to a large number of x86 intrinsics. All I've done here is provide a DEFAULT_FN_ATTRS_CONSTEXPR variant to our existing DEFAULT_FN_ATTRS tag approach that adds constexpr on c++ builds. The clang cuda headers do something similar. I've started with POPCNT mainly as its tiny and are wrappers to generic __builtin_* intrinsics which already act as constexpr. Differential Revision: https://reviews.llvm.org/D86229
2020-08-21 04:37:51 +08:00
static __inline__ long long __DEFAULT_FN_ATTRS_CONSTEXPR
Add popcnt feature flag to match gcc. This flag is implied when sse42 is enabled, but can be disabled separately. Move popcnt intrinsics to popcntintrin.h to match gcc. llvm-svn: 147340
2011-12-30 00:10:46 +08:00
_mm_popcnt_u64(unsigned long long __A)
{
return __builtin_popcountll(__A);
}
#endif /* __x86_64__ */
[X86] Rename DEFAULT_FN_ATTR macro to __DEFAULT_FN_ATTR llvm-svn: 241065
2015-06-30 21:36:19 +08:00
#undef __DEFAULT_FN_ATTRS
[X86] Enable constexpr on POPCNT intrinsics (PR31446) This is a first step patch to enable constexpr support and testing to a large number of x86 intrinsics. All I've done here is provide a DEFAULT_FN_ATTRS_CONSTEXPR variant to our existing DEFAULT_FN_ATTRS tag approach that adds constexpr on c++ builds. The clang cuda headers do something similar. I've started with POPCNT mainly as its tiny and are wrappers to generic __builtin_* intrinsics which already act as constexpr. Differential Revision: https://reviews.llvm.org/D86229
2020-08-21 04:37:51 +08:00
#undef __DEFAULT_FN_ATTRS_CONSTEXPR
Use a define for per-file function attributes for the Intel intrinsic headers. This is a precursor to changing them to use the new target attribute code. llvm-svn: 239882
2015-06-17 15:09:20 +08:00
[X86] Consistently use double underscore at the beginning of the include guards in our intrinsic headers. Most files used double underscore, but a few used single. This converges them all to double. llvm-svn: 330743
2018-04-25 01:40:47 +08:00
#endif /* __POPCNTINTRIN_H */