a5a7f6266e
#171941 got the builtins tests running under LLVM_ENABLE_RUNTIMES by
testing the builtins as part of the runtimes build.
As a consequence, CMake in `lib/builtins/` is no longer visible when
configuring the tests (but `test/builtins/` is). This means that the
`cmake_dependent_option` from `lib/builtins/` is not accounted for by
the tests, allowing COMPILER_RT_BUILD_CRT to be YES when
COMPILER_RT_HAS_CRT is NO. As a consequence, the CRT tests are running
on platforms where COMPILER_RT_HAS_CRT is false (#176892).
367da15a11/compiler-rt/lib/builtins/CMakeLists.txt (L1106-L1108)
Although the long-term solution could be to split both the builtins (and
their tests) out of compiler-rt into a top-level directory with shared
options, this works around the issue for the moment by checking both
COMPILER_RT_HAS_CRT and COMPILER_RT_BUILD_CRT before enabling the "crt"
feature.
Fixes #176892
Compiler-RT ================================ This directory and its subdirectories contain source code for the compiler support routines. Compiler-RT is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. ================================