[libc-commits] [libc] [llvm] [APFloat] Add exp function for APFloat::IEEESsingle using expf implementation from LLVM libc. (PR #143959)

[LLVM Continuous Integration via libc-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-nvptx64-nvidia-win` running on `as-builder-8` while building `libc,llvm` at step 6 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/155/builds/15732

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (build-unified-tree) failure: build (failure)
...
[332/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\Atomic.cpp.obj
[333/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\DynamicLibrary.cpp.obj
[334/2845] Linking CXX static library lib\benchmark_main.lib
[335/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\Program.cpp.obj
[336/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\Threading.cpp.obj
[337/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\Memory.cpp.obj
[338/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\Process.cpp.obj
[339/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\Signals.cpp.obj
[340/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\APFixedPoint.cpp.obj
[341/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\APFloat.cpp.obj
FAILED: lib/Support/CMakeFiles/LLVMSupport.dir/APFloat.cpp.obj 
C:\ninja\ccache.exe C:\PROGRA~1\MICROS~2\2022\COMMUN~1\VC\Tools\MSVC\1443~1.348\bin\Hostx64\x64\cl.exe  /nologo /TP -DGTEST_HAS_RTTI=0 -DUNICODE -D_CRT_NONSTDC_NO_DEPRECATE -D_CRT_NONSTDC_NO_WARNINGS -D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS -D_GLIBCXX_ASSERTIONS -D_HAS_EXCEPTIONS=0 -D_SCL_SECURE_NO_DEPRECATE -D_SCL_SECURE_NO_WARNINGS -D_UNICODE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -IC:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\build\lib\Support -IC:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\llvm-project\llvm\lib\Support -IC:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\build\include -IC:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\llvm-project\llvm\include -IC:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\llvm-project\llvm\..\third-party\siphash\include -IC:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\build\include\..\..\libc /DWIN32 /D_WINDOWS   /Zc:inline /Zc:preprocessor /Zc:__cplusplus /Oi /bigobj /permissive- /W4 -wd4141 -wd4146 -wd4244 -wd4267 -wd4291 -wd4351 -wd4456 -wd4457 -wd4458 -wd4459 -wd4503 -wd4624 -wd4722 -wd4100 -wd4127 -wd4512 -wd4505 -wd4610 -wd4510 -wd4702 -wd4245 -wd4706 -wd4310 -wd4701 -wd4703 -wd4389 -wd4611 -wd4805 -wd4204 -wd4577 -wd4091 -wd4592 -wd4319 -wd4709 -wd5105 -wd4324 -wd4251 -wd4275 -w14062 -we4238 /Gw /O2 /Ob2  -MD -UNDEBUG -std:c++17  /EHs-c- /GR- /showIncludes /Folib\Support\CMakeFiles\LLVMSupport.dir\APFloat.cpp.obj /Fdlib\Support\CMakeFiles\LLVMSupport.dir\LLVMSupport.pdb /FS -c C:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\llvm-project\llvm\lib\Support\APFloat.cpp
C:\buildbot\as-builder-8\llvm-nvptx64-nvidia-win\llvm-project\llvm\lib\Support\APFloat.cpp(32): fatal error C1083: Cannot open include file: 'shared/math.h': No such file or directory
[342/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\Path.cpp.obj
[343/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\Z3Solver.cpp.obj
[344/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\ScaledNumber.cpp.obj
[345/2845] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\StringRef.cpp.obj
[346/2845] Configuring NATIVE LLVM...
-- The C compiler identification is MSVC 19.43.34808.0
-- The CXX compiler identification is MSVC 19.43.34808.0
-- The ASM compiler identification is MSVC
-- Found assembler: C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.43.34808/bin/Hostx64/x64/cl.exe
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.43.34808/bin/Hostx64/x64/cl.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.43.34808/bin/Hostx64/x64/cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- bolt project is disabled
-- clang project is disabled
-- clang-tools-extra project is disabled
-- compiler-rt project is disabled
-- cross-project-tests project is disabled
-- libclc project is disabled
-- lld project is disabled
-- lldb project is disabled
-- mlir project is disabled
-- openmp project is disabled
-- polly project is disabled
-- flang project is disabled
-- libc project is disabled
-- Found Python3: C:/Python310/python.exe (found suitable version "3.10.11", minimum required is "3.0") found components: Interpreter 
-- Looking for __GLIBC__
-- Looking for __GLIBC__ - not found
-- Looking for valgrind/valgrind.h

```

</details>

https://github.com/llvm/llvm-project/pull/143959