[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 `publish-sphinx-docs` running on `as-worker-4` while building `libc,llvm` at step 5 "build-docs-llvm-html-docs-clang-html-docs-clang...".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/45/builds/19905

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

```
Step 5 (build-docs-llvm-html-docs-clang-html-docs-clang...) failure: build (failure)
5.478 [529/24/1] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/AutoConvert.cpp.o
5.519 [528/24/2] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/ABIBreak.cpp.o
5.580 [527/24/3] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/APFloat.cpp.o
FAILED: lib/Support/CMakeFiles/LLVMSupport.dir/APFloat.cpp.o 
/usr/bin/c++ -DGTEST_HAS_RTTI=0 -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/work/as-worker-4/publish-sphinx-docs/build/lib/Support -I/work/as-worker-4/publish-sphinx-docs/llvm-project/llvm/lib/Support -I/work/as-worker-4/publish-sphinx-docs/build/include -I/work/as-worker-4/publish-sphinx-docs/llvm-project/llvm/include -I/work/as-worker-4/publish-sphinx-docs/llvm-project/llvm/../third-party/siphash/include -I/work/as-worker-4/publish-sphinx-docs/build/include/../../libc -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-dangling-reference -Wno-redundant-move -Wno-pessimizing-move -Wno-array-bounds -Wno-stringop-overread -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=c++17 -Wno-c99-extensions  -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Support/CMakeFiles/LLVMSupport.dir/APFloat.cpp.o -MF lib/Support/CMakeFiles/LLVMSupport.dir/APFloat.cpp.o.d -o lib/Support/CMakeFiles/LLVMSupport.dir/APFloat.cpp.o -c /work/as-worker-4/publish-sphinx-docs/llvm-project/llvm/lib/Support/APFloat.cpp
/work/as-worker-4/publish-sphinx-docs/llvm-project/llvm/lib/Support/APFloat.cpp:32:10: fatal error: shared/math.h: No such file or directory
   32 | #include "shared/math.h"
      |          ^~~~~~~~~~~~~~~
compilation terminated.
5.772 [527/23/4] Building CXX object lib/Demangle/CMakeFiles/LLVMDemangle.dir/Demangle.cpp.o
6.006 [527/22/5] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/AArch64BuildAttributes.cpp.o
6.007 [527/21/6] Building CXX object lib/Demangle/CMakeFiles/LLVMDemangle.dir/DLangDemangle.cpp.o
6.182 [527/20/7] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/ARMWinEH.cpp.o
6.187 [527/19/8] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/AllocToken.cpp.o
6.232 [527/18/9] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Allocator.cpp.o
6.253 [527/17/10] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/ARMBuildAttributes.cpp.o
6.367 [527/16/11] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/APSInt.cpp.o
6.440 [527/15/12] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/BinaryStreamError.cpp.o
6.479 [527/14/13] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/AArch64AttributeParser.cpp.o
6.581 [527/13/14] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Base64.cpp.o
6.931 [527/12/15] Building CXX object lib/Demangle/CMakeFiles/LLVMDemangle.dir/RustDemangle.cpp.o
7.157 [527/11/16] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/BinaryStreamReader.cpp.o
7.183 [527/10/17] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/BinaryStreamRef.cpp.o
7.364 [527/9/18] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/BinaryStreamWriter.cpp.o
7.451 [527/8/19] Building CXX object lib/Demangle/CMakeFiles/LLVMDemangle.dir/MicrosoftDemangleNodes.cpp.o
8.148 [527/7/20] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/APFixedPoint.cpp.o
8.336 [527/6/21] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/AMDGPUMetadata.cpp.o
8.453 [527/5/22] Building CXX object lib/Demangle/CMakeFiles/LLVMDemangle.dir/MicrosoftDemangle.cpp.o
8.705 [527/4/23] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/ARMAttributeParser.cpp.o
10.938 [527/3/24] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o
11.540 [527/2/25] Building CXX object lib/Demangle/CMakeFiles/LLVMDemangle.dir/ItaniumDemangle.cpp.o
11.870 [527/1/26] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/BalancedPartitioning.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

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