Commit Graph

1559 Commits

Author SHA1 Message Date
Paul Robinson d2c0eefd5c [X86] Remove const from some intrinsics that shouldn't have them
llvm-svn: 366699
2019-07-22 16:14:09 +00:00
Sven van Haastregt e9e59ad79f [OpenCL] Define CLK_NULL_EVENT without cast
Defining CLK_NULL_EVENT with a `(void*)` cast has the (unintended?)
side-effect that the address space will be fixed (as generic in OpenCL
2.0 mode).  The consequence is that any target specific address space
for the clk_event_t type will not be applied.

It is not clear why the void pointer cast was needed in the first
place, and it seems we can do without it.

Differential Revision: https://reviews.llvm.org/D63876

llvm-svn: 366546
2019-07-19 09:11:48 +00:00
Qiu Chaofan 03aaef8e72 [PowerPC][Clang] Remove use of malloc in mm_malloc
Remove dependency of malloc in implementation of mm_malloc function in PowerPC
intrinsics and alignment assumption on glibc.

Reviewed By: Hal Finkel

Differential Revision: https://reviews.llvm.org/D64850

llvm-svn: 366406
2019-07-18 06:20:12 +00:00
Momchil Velikov 0e2b74a2b0 Revert [AArch64] Add support for Transactional Memory Extension (TME)
This reverts r366322 (git commit 4b8da3a503)

llvm-svn: 366355
2019-07-17 17:43:32 +00:00
Momchil Velikov 4b8da3a503 [AArch64] Add support for Transactional Memory Extension (TME)
TME is a future architecture technology, documented in

https://developer.arm.com/architectures/cpu-architecture/a-profile/exploration-tools
https://developer.arm.com/docs/ddi0601/a

More about the future architectures:

https://community.arm.com/developer/ip-products/processors/b/processors-ip-blog/posts/new-technologies-for-the-arm-a-profile-architecture

This patch adds support for the TME instructions TSTART, TTEST, TCOMMIT, and
TCANCEL and the target feature/arch extension "tme".

It also implements TME builtin functions, defined in ACLE Q2 2019
(https://developer.arm.com/docs/101028/latest)

Patch by Javed Absar and Momchil Velikov

Differential Revision: https://reviews.llvm.org/D64416

llvm-svn: 366322
2019-07-17 13:23:27 +00:00
Kyrylo Tkachov eb72138340 [AArch64] Implement __jcvt intrinsic from Armv8.3-A
The jcvt intrinsic defined in ACLE [1] is available when ARM_FEATURE_JCVT is defined.

This change introduces the AArch64 intrinsic, wires it up to the instruction and a new clang builtin function.
The __ARM_FEATURE_JCVT macro is now defined when an Armv8.3-A or higher target is used.
I've implemented the target detection logic in Clang so that this feature is enabled for architectures from armv8.3-a onwards (so -march=armv8.4-a also enables this, for example).

make check-all didn't show any new failures.

[1] https://developer.arm.com/docs/101028/latest/data-processing-intrinsics

Differential Revision: https://reviews.llvm.org/D64495

llvm-svn: 366197
2019-07-16 09:27:39 +00:00
Ulrich Weigand b98bf60ef7 [SystemZ] Add support for new cpu architecture - arch13
This patch series adds support for the next-generation arch13
CPU architecture to the SystemZ backend.

This includes:
- Basic support for the new processor and its features.
- Support for low-level builtins mapped to new LLVM intrinsics.
- New high-level intrinsics in vecintrin.h.
- Indicate support by defining  __VEC__ == 10303.

Note: No currently available Z system supports the arch13
architecture.  Once new systems become available, the
official system name will be added as supported -march name.

llvm-svn: 365933
2019-07-12 18:14:51 +00:00
Craig Topper caf6b71ab2 [X86] Change the IR sequence for _mm_storeh_pi and _mm_storel_pi to perform the store as a <2 x float> instead of i64.
This is similar to what we do for loadl_pi and loadh_pi.

llvm-svn: 365669
2019-07-10 17:11:29 +00:00
Sven van Haastregt b502a44110 [OpenCL] Restore ATOMIC_VAR_INIT
We accidentally lost the ATOMIC_VAR_INIT and ATOMIC_FLAG_INIT macros
in r363794.

Also put the `memory_order` typedef back inside a `>= CL2.0` guard.

llvm-svn: 364174
2019-06-24 10:06:40 +00:00
Sven van Haastregt 853dfab799 [OpenCL] Remove more duplicates from opencl-c.h
Identified the duplicate declarations using

  sort lib/Headers/opencl-c.h | uniq -c | grep '      2'

llvm-svn: 364173
2019-06-24 10:06:34 +00:00
Anastasia Stulova 999f676d75 [OpenCL][PR41963] Add generic addr space to old atomics in C++ mode
Add overloads with generic address space pointer to old atomics.
This is currently only added for C++ compilation mode.

Differential Revision: https://reviews.llvm.org/D62335

llvm-svn: 364071
2019-06-21 16:19:16 +00:00
Sven van Haastregt 772a7a7680 [OpenCL] Remove duplicate read_image declarations
Patch by Pierre Gondois.

llvm-svn: 364020
2019-06-21 10:26:10 +00:00
Craig Topper 6d9fb68c53 [X86] Make _mm_mask_cvtps_ph, _mm_maskz_cvtps_ph, _mm256_mask_cvtps_ph, and _mm256_maskz_cvtps_ph aliases for their corresponding cvt_roundps_ph intrinsic.
These intrinsics should always take an immediate for the rounding mode.
The base instruction comes from before EVEX embdedded rounding. The
user should always provide the immediate rather than us assuming
CUR_DIRECTION.

Make the 512-bit versions also explicit aliases instead of copy
pasting the code.

llvm-svn: 363961
2019-06-20 18:24:29 +00:00
Xing Xue ab4bcd844a AIX system headers need stdint.h and inttypes.h to be re-enterable
Summary:
AIX system headers need stdint.h and inttypes.h to be re-enterable when macro _STD_TYPES_T is defined so that limit macro definitions such as UINT32_MAX can be found. This patch attempts to allow that on AIX.

Reviewers: hubert.reinterpretcast, jasonliu, mclow.lists, EricWF

Reviewed by: hubert.reinterpretcast, mclow.lists

Subscribers: jfb, jsji, christof, cfe-commits, libcxx-commits, llvm-commits

Tags: #LLVM, #clang, #libc++

Differential Revision: https://reviews.llvm.org/D59253

llvm-svn: 363939
2019-06-20 15:36:32 +00:00
Craig Topper 24151619a0 [X86] Correct the __min_vector_width__ attribute on a few intrinsics.
llvm-svn: 363890
2019-06-19 23:27:04 +00:00
Sven van Haastregt af1c230e70 [OpenCL] Split type and macro definitions into opencl-c-base.h
Using the -fdeclare-opencl-builtins option will require a way to
predefine types and macros such as `int4`, `CLK_GLOBAL_MEM_FENCE`,
etc.  Move these out of opencl-c.h into opencl-c-base.h such that the
latter can be shared by -fdeclare-opencl-builtins and
-finclude-default-header.

This changes the behaviour of -finclude-default-header when
-fdeclare-opencl-builtins is specified: instead of including the full
header, it will include the header with only the base definitions.

Differential revision: https://reviews.llvm.org/D63256

llvm-svn: 363794
2019-06-19 12:48:22 +00:00
Zi Xuan Wu cc12f68fff [PowerPC] [Clang] Port SSE2 intrinsics to PowerPC
Port emmintrin.h which include Intel SSE2 intrinsics implementation to PowerPC platform (using Altivec).

The new headers containing those implemenations are located into a directory named ppc_wrappers
which has higher priority when the platform is PowerPC on Linux. They are mainly developed by Steven Munroe,
with contributions from Paul Clarke, Bill Schmidt, Jinsong Ji and Zixuan Wu.

It's a follow-up patch of D62121.

Patched by: Qiu Chaofan <qiucf@cn.ibm.com>

Differential Revision: https://reviews.llvm.org/D62569

llvm-svn: 363122
2019-06-12 05:25:40 +00:00
Pengfei Wang 244062eece [X86] Enable intrinsics that convert float and bf16 data to each other
Scalar version :
_mm_cvtsbh_ss , _mm_cvtness_sbh

Vector version:
_mm512_cvtpbh_ps , _mm256_cvtpbh_ps
_mm512_maskz_cvtpbh_ps , _mm256_maskz_cvtpbh_ps
_mm512_mask_cvtpbh_ps , _mm256_mask_cvtpbh_ps

Patch by Shengchen Kan (skan)

Differential Revision: https://reviews.llvm.org/D62363

llvm-svn: 363018
2019-06-11 01:17:28 +00:00
Pengfei Wang 3a29f7c99c [X86] Add ENQCMD instructions
For more details about these instructions, please refer to the latest
ISE document:
https://software.intel.com/en-us/download/intel-architecture-instruction-set-extensions-programming-reference.

Patch by Tianqing Wang (tianqing)

Differential Revision: https://reviews.llvm.org/D62282

llvm-svn: 362685
2019-06-06 08:28:42 +00:00
Andrew Savonichev 9ed325e463 [OpenCL] Undefine cl_intel_planar_yuv extension
Summary:

Remove unnecessary definition (otherwise the extension will be defined
where it's not supposed to be defined).

Consider the code:

  #pragma OPENCL EXTENSION cl_intel_planar_yuv : begin
  // some declarations
  #pragma OPENCL EXTENSION cl_intel_planar_yuv : end

is enough for extension to become known for clang.

Patch by: Dmitry Sidorov <dmitry.sidorov@intel.com>

Reviewers: Anastasia, yaxunl

Reviewed By: Anastasia

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58666

llvm-svn: 362398
2019-06-03 13:02:43 +00:00
Pengfei Wang cc3629d545 [X86] Add VP2INTERSECT instructions
Support intel AVX512 VP2INTERSECT instructions in clang

Patch by Xiang Zhang (xiangzhangllvm)

Differential Revision: https://reviews.llvm.org/D62367

llvm-svn: 362196
2019-05-31 06:09:35 +00:00
Zi Xuan Wu fc3ed1ec50 re-commit r361928: [PowerPC] [Clang] Port SSE intrinsics to PowerPC
Port xmmintrin.h which include Intel SSE intrinsics implementation to PowerPC platform (using Altivec).

The new headers containing those implemenations are located into a directory named ppc_wrappers
which has higher priority when the platform is PowerPC on Linux. They are mainly developed by Steven Munroe,
with contributions from Paul Clarke, Bill Schmidt, Jinsong Ji and Zixuan Wu.

Patched by: Qiu Chaofan <qiucf@cn.ibm.com>
Reviewed By: Jinsong Ji

Differential Revision: https://reviews.llvm.org/D62121

llvm-svn: 362190
2019-05-31 04:42:13 +00:00
Zi Xuan Wu 48061cd999 revert rC361928: [PowerPC] [Clang] Port SSE intrinsics to PowerPC
Because test fails in other targets rather than PowerPC

llvm-svn: 361930
2019-05-29 07:09:54 +00:00
Zi Xuan Wu b3bcbb5b66 [PowerPC] [Clang] Port SSE intrinsics to PowerPC
Port xmmintrin.h which include Intel SSE intrinsics implementation to PowerPC platform (using Altivec).

The new headers containing those implemenations are located into a directory named ppc_wrappers
which has higher priority when the platform is PowerPC on Linux. They are mainly developed by Steven Munroe,
with contributions from Paul Clarke, Bill Schmidt, Jinsong Ji and Zixuan Wu.

Patched by: Qiu Chaofan <qiucf@cn.ibm.com>
Reviewed By: Jinsong Ji

Differential Revision: https://reviews.llvm.org/D62121

llvm-svn: 361928
2019-05-29 05:17:03 +00:00
Kevin Petit aa7754cc90 [OpenCL] Add support for the cl_arm_integer_dot_product extensions
The specification is available in the Khronos OpenCL registry:

https://www.khronos.org/registry/OpenCL/extensions/arm/cl_arm_integer_dot_product.txt

Signed-off-by: Kevin Petit <kevin.petit@arm.com>
llvm-svn: 361641
2019-05-24 14:53:52 +00:00
Craig Topper 3d7ecc4618 [X86] Remove semicolons at the end of intrinsics implemented as macros so they can be used as arguments to other intrinsics.
Also fix one intrinsic that was using variable names without underscores.

Fixes PR41932

llvm-svn: 361109
2019-05-19 01:01:52 +00:00
Gheorghe-Teodor Bercea 144291e14c [OpenMP][bugfix] Add missing math functions variants for log and abs.
Summary: When including the random header in C++, some of the math functions it relies on are not present in the CUDA headers. We include this variants in this case.

Reviewers: jdoerfert, hfinkel, tra, caomhin

Reviewed By: tra

Subscribers: efriedma, guansong, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62046

llvm-svn: 361066
2019-05-17 19:15:53 +00:00
Craig Topper 20040db9a6 [X86] Stop implicitly enabling avx512vl when avx512bf16 is enabled.
Previously we were doing this so that the 256 bit selectw builtin could be used in the implementation of the 512->256 bit conversion intrinsic.

After this commit we now use a masked convert builtin that will emit the intrinsic call and the 256-bit select from custom code in CGBuiltin. Then the header only needs to call that one intrinsic.

llvm-svn: 360924
2019-05-16 18:28:17 +00:00
Craig Topper 58964566e0 [X86] Update doxygen comments for AVX512BF16 to not refer to masks as 'immediates'. Refer to parameter names instead of 'src', 'src1', 'src2'. NFC
llvm-svn: 360918
2019-05-16 17:34:35 +00:00
Gheorghe-Teodor Bercea 9392bd6987 [OpenMP][Bugfix] Move double and float versions of abs under c++ macro
Summary:
This is a fix for the reported bug:

[[ https://bugs.llvm.org/show_bug.cgi?id=41861 | 41861 ]]

abs functions need to be moved under the c++ macro to avoid conflicts with included headers.

Reviewers: tra, jdoerfert, hfinkel, ABataev, caomhin

Reviewed By: jdoerfert

Subscribers: guansong, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61959

llvm-svn: 360809
2019-05-15 20:28:23 +00:00
Gheorghe-Teodor Bercea 7641f310d7 [OpenMP][bugfix] Fix issues with C++ 17 compilation when handling math functions
Summary: In OpenMP device offloading we must ensure that unde C++ 17, the inclusion of cstdlib will works correctly.

Reviewers: ABataev, tra, jdoerfert, hfinkel, caomhin

Reviewed By: jdoerfert

Subscribers: Hahnfeld, guansong, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61949

llvm-svn: 360804
2019-05-15 20:18:21 +00:00
Volodymyr Sapsai 51e79f0634 [X86] Make `x86intrin.h`, `immintrin.h` includable with `-fno-gnu-inline-asm`.
Currently `immintrin.h` includes `pconfigintrin.h` and `sgxintrin.h`
which contain inline assembly. It causes failures when building with the
flag `-fno-gnu-inline-asm`.

Fix by excluding functions with inline assembly when this extension is
disabled. So far there was no need to support `_pconfig_u32`,
`_enclu_u32`, `_encls_u32`, `_enclv_u32` on platforms that require
`-fno-gnu-inline-asm`. But if developers start using these functions,
they'll have compile-time undeclared identifier errors which is
preferrable to runtime errors.

rdar://problem/49540880

Reviewers: craig.topper, GBuella, rnk, echristo

Reviewed By: rnk

Subscribers: jkorous, dexonsmith, cfe-commits

Differential Revision: https://reviews.llvm.org/D61621

llvm-svn: 360630
2019-05-13 22:40:11 +00:00
Gheorghe-Teodor Bercea 946957189d [OpenMP][Clang][BugFix] Split declares and math functions inclusion.
Summary: This patches fixes an issue in which the __clang_cuda_cmath.h header is being included even when cmath or math.h headers are not included.

Reviewers: jdoerfert, ABataev, hfinkel, caomhin, tra

Reviewed By: tra

Subscribers: tra, mgorny, guansong, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61765

llvm-svn: 360626
2019-05-13 22:11:44 +00:00
Reid Kleckner 55fab1ff48 Revert Include corecrt.h in stddef.h and vcruntime.h in stdarg.h to improve MS compatibility.
This reverts r360271 (git commit a0933bd8ec)

There are concerns on the review that this breaks EFI builds and that
the transitive includes (sal.h) are actually heavy enough that we might
care.

llvm-svn: 360291
2019-05-08 22:01:20 +00:00
Mike Rice a0933bd8ec Include corecrt.h in stddef.h and vcruntime.h in stdarg.h to improve MS
compatibility.  This allows some applications developed with MSVC to
compile with clang without any extra changes.

Fixes: llvm.org/PR40789

Differential Revision: https://reviews.llvm.org/D61646

llvm-svn: 360271
2019-05-08 17:15:21 +00:00
Gheorghe-Teodor Bercea e62c693c8e [OpenMP][Clang] Support for target math functions
Summary:
In this patch we propose a temporary solution to resolving math functions for the NVPTX toolchain, temporary until OpenMP variant is supported by Clang.

We intercept the inclusion of math.h and cmath headers and if we are in the OpenMP-NVPTX case, we re-use CUDA's math function resolution mechanism.

Authors:
@gtbercea
@jdoerfert

Reviewers: hfinkel, caomhin, ABataev, tra

Reviewed By: hfinkel, ABataev, tra

Subscribers: JDevlieghere, mgorny, guansong, cfe-commits, jdoerfert

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61399

llvm-svn: 360265
2019-05-08 15:52:33 +00:00
Jonas Devlieghere fe608c938c Revert "[OpenMP][Clang] Support for target math functions"
This commit appears to be breaking stage-2 builds on GreenDragon. The
OpenMP wrappers for cmath and math.h are copied into the root of the
resource directory and cause a cyclic dependency in module 'Darwin':
Darwin -> std -> Darwin. This blows up when CMake is testing for modules
support and breaks all stage 2 module builds, including the ThinLTO bot
and all LLDB bots.

CMake Error at cmake/modules/HandleLLVMOptions.cmake:497 (message):
  LLVM_ENABLE_MODULES is not supported by this compiler

llvm-svn: 360192
2019-05-07 21:08:15 +00:00
Gheorghe-Teodor Bercea 1e28a668bc [OpenMP][Clang] Support for target math functions
Summary:
In this patch we propose a temporary solution to resolving math functions for the NVPTX toolchain, temporary until OpenMP variant is supported by Clang.

We intercept the inclusion of math.h and cmath headers and if we are in the OpenMP-NVPTX case, we re-use CUDA's math function resolution mechanism.

Authors:
@gtbercea
@jdoerfert

Reviewers: hfinkel, caomhin, ABataev, tra

Reviewed By: hfinkel, ABataev, tra

Subscribers: mgorny, guansong, cfe-commits, jdoerfert

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61399

llvm-svn: 360063
2019-05-06 18:19:15 +00:00
Fangrui Song 041c377a59 [X86] Move files to correct directories after D60552
llvm-svn: 360022
2019-05-06 09:24:36 +00:00
Luo, Yuanke 844f662932 Enable intrinsics of AVX512_BF16, which are supported for BFLOAT16 in Cooper Lake
Summary:
1. Enable infrastructure of AVX512_BF16, which is supported for BFLOAT16 in Cooper Lake;
2. Enable intrinsics for VCVTNE2PS2BF16, VCVTNEPS2BF16 and DPBF16PS instructions, which are Vector Neural Network Instructions supporting BFLOAT16 inputs and conversion instructions from IEEE single precision.
For more details about BF16 intrinsic, please refer to the latest ISE document: https://software.intel.com/en-us/download/intel-architecture-instruction-set-extensions-programming-reference

Patch by LiuTianle

Reviewers: craig.topper, smaslov, LuoYuanke, wxiao3, annita.zhang, spatel, RKSimon

Reviewed By: craig.topper

Subscribers: mgorny, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D60552

llvm-svn: 360018
2019-05-06 08:25:11 +00:00
Tom Stellard dbe1c4aa6f lib/Header: Fix Visual Studio builds try #2
Summary:
This is a follow up to r355253 and a better fix than the first attempt
which was r359257.

We can't install anything from ${CMAKE_CFG_INTDIR}, because this value
is only defined at build time, but we still must make sure to copy the
headers into ${CMAKE_CFG_INTDIR}/lib/clang/$VERSION/include, because the lit
tests look for headers there.  So for this fix we revert to the
old behavior of copying the headers to ${CMAKE_CFG_INTDIR}/lib/clang/$VERSION/include
during the build and then installing them from the source tree.

Reviewers: smeenai, vzakhari, phosek

Reviewed By: smeenai, vzakhari

Subscribers: mgorny, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61220

llvm-svn: 359654
2019-05-01 06:18:03 +00:00
Javed Absar 18b0c40bc5 [AArch64] Add support for MTE intrinsics
This provides intrinsics support for Memory Tagging Extension (MTE),
which was introduced with the Armv8.5-a architecture.
These intrinsics are available when __ARM_FEATURE_MEMORY_TAGGING is defined.
Each intrinsic is described in detail in the ACLE Q1 2019 documentation:
https://developer.arm.com/docs/101028/latest
Reviewed By: Tim Nortover, David Spickett
Differential Revision: https://reviews.llvm.org/D60485

llvm-svn: 359348
2019-04-26 21:08:11 +00:00
Tom Stellard 0184819e81 Revert lib/Header: Fix Visual Studio builds
This reverts r359257 (git commit 00d9789509)

This broke check-clang.

llvm-svn: 359258
2019-04-26 01:43:59 +00:00
Tom Stellard 00d9789509 lib/Header: Fix Visual Studio builds
Summary:
This is a follow up to r355253, which inadvertently broke Visual
Studio builds by trying to copy files from CMAKE_CFG_INTDIR.

See https://reviews.llvm.org/D58537#inline-532492

Reviewers: smeenai, vzakhari, phosek

Reviewed By: smeenai

Subscribers: mgorny, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61054

llvm-svn: 359257
2019-04-26 01:18:59 +00:00
Jinsong Ji 12450d51a2 [PowerPC][NFC]Update licence to Apache 2
llvm-svn: 359164
2019-04-25 02:40:06 +00:00
Qiu Chaofan 19828e399b [PowerPC] [Clang] Port MMX intrinsics and basic test cases to Power
Port mmintrin.h which include x86 MMX intrinsics implementation to PowerPC platform (using Altivec).

To make the include process correct, PowerPC's toolchain class is overrided to insert new headers directory (named ppc_wrappers) into the path. Basic test cases for several intrinsic functions are added.

The header is mainly developed by Steven Munroe, with contributions from Paul Clarke, Bill Schmidt, Jinsong Ji and Zixuan Wu.

Reviewed By: Jinsong Ji

Differential Revision: https://reviews.llvm.org/D59924

llvm-svn: 358949
2019-04-23 05:50:24 +00:00
Evgeny Mankov 88aa3d7237 [CUDA][Windows] Restrict long double device functions declarations to Windows
As agreed in D60220, make long double declarations unobservable on non-windows platforms.

[Testing]
{Windows 10, Ubuntu 16.04.5}/{Visual C++ 2017 15.9.11 & 2019 16.0.1, gcc+ 5.4.0}/CUDA {8.0, 9.0, 9.1, 9.2, 10.0, 10.1}

Reviewed by: Artem Belevich

Differential Revision: https://reviews.llvm.org/D60818

llvm-svn: 358654
2019-04-18 10:08:55 +00:00
Craig Topper 8e364c680f [X86] Restore the pavg intrinsics.
The pattern we replaced these with may be too hard to match as demonstrated by
PR41496 and PR41316.

This patch restores the intrinsics and then we can start focusing
on the optimizing the intrinsics.

I've mostly reverted the original patch that removed them. Though I modified
the avx512 intrinsics to not have masking built in.

Differential Revision: https://reviews.llvm.org/D60674

llvm-svn: 358427
2019-04-15 17:17:35 +00:00
Chandler Carruth 4cf5743b77 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
2019-04-08 20:51:30 +00:00
Evgeny Mankov 66a8b07cd9 [CUDA][Windows] Last fix for the clang Bug 38811 "Clang fails to compile with CUDA-9.x on Windows" (https://bugs.llvm.org/show_bug.cgi?id=38811).
[IMPORTANT]
With that last fix, CUDA has just started being compiling by clang on Windows after nearly a year and two clang’s major releases (7 and 8).
As long as the last LLVM release, in which clang was compiling CUDA on Windows successfully, was 6.0.1, this fix and two previous have to be included into upcoming 7.1.0 and 8.0.1 releases.

[How to repro]
clang++.exe -x cuda "c:\ProgramData\NVIDIA Corporation\CUDA Samples\v9.0\0_Simple\simplePrintf\simplePrintf.cu" -I"c:\ProgramData\NVIDIA Corporation\CUDA Samples\v9.0\common\inc" --cuda-gpu-arch=sm_50 --cuda-path="C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0" -L"c:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0\lib\x64" -lcudart.lib  -v

[Output]
In file included from C:\GIT\LLVM\trunk-for-submits\llvm-64-release-vs2017-15.9.9\dist\lib\clang\9.0.0\include\__clang_cuda_runtime_wrapper.h:327:
C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:390:11: error: no matching function for call to '__isinfl'
  return (__isinfl(a) != 0);
          ^~~~~~~~
C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:2662:14: note: candidate function not viable: call to __host__ function from __device__ function
__func__(int __isinfl(long double a))
             ^
In file included from <built-in>:1:
In file included from C:\GIT\LLVM\trunk-for-submits\llvm-64-release-vs2017-15.9.9\dist\lib\clang\9.0.0\include\__clang_cuda_runtime_wrapper.h:327:
C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:438:11: error: no matching function for call to '__isnanl'
  return (__isnanl(a) != 0);
          ^~~~~~~~
C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:2672:14: note: candidate function not viable: call to __host__ function from __device__ function
__func__(int __isnanl(long double a))
             ^
In file included from <built-in>:1:
In file included from C:\GIT\LLVM\trunk-for-submits\llvm-64-release-vs2017-15.9.9\dist\lib\clang\9.0.0\include\__clang_cuda_runtime_wrapper.h:327:
C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:486:11: error: no matching function for call to '__finitel'
  return (__finitel(a) != 0);
          ^~~~~~~~~
C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:2652:14: note: candidate function not viable: call to __host__ function from __device__ function
__func__(int __finitel(long double a))
             ^
3 errors generated when compiling for sm_50.

[Solution]
Add missing long double device functions' declarations. Provide only declarations to prevent any use of long double on the device side, because CUDA does not support long double on the device side.

[Testing]
{Windows 10, Ubuntu 16.04.5}/{Visual C++ 2017 15.9.9, gcc+ 5.4.0}/CUDA {8.0, 9.0, 9.1, 9.2, 10.0, 10.1}

Reviewed by: Artem Belevich

Differential Revision: http://reviews.llvm.org/D60220

llvm-svn: 357779
2019-04-05 16:51:10 +00:00