[Lldb-commits] [clang] [lldb] [llvm] Remove some `try_compile` CMake checks for compiler flags (PR #92953)

[Vlad Serebrennikov via lldb-commits]

Endilll wrote:

On my setup, this patch improves CMake configuration times (from a clean state) from 51 seconds down to 46 seconds (average of 3 measurements).

My setup: ancient x86 hardware, Debian Sid, nightly Clang, build directory on a RAM disk. CMake invocation:
`cmake -DLLVM_ENABLE_PROJECTS="clang;lldb" -DLLVM_ENABLE_RUNTIMES="libunwind;libcxx;libcxxabi" -DCMAKE_BUILD_TYPE=Debug -DLLVM_OPTIMIZED_TABLEGEN=ON -DLLVM_TARGETS_TO_BUILD="X86" -DLLVM_ENABLE_DOXYGEN=ON -DLLVM_ENABLE_LIBCXX=ON -DBUILD_SHARED_LIBS=ON -DLLDB_ENABLE_PYTHON=ON ~/endill/llvm-project/llvm`.

https://github.com/llvm/llvm-project/pull/92953