tree 1d0f523304cc330d1333d8a948a58dd443d0244f
parent f2e9301ff87fdc4649a66fef80f6bca0b92e51f3
author Petr Hosek <phosek@google.com> 1601339840 -0700
committer Copybara-Service <copybara-worker@google.com> 1635382561 -0700

[CMake] Cache the compiler-rt library search results

There's a lot of duplicated calls to find various compiler-rt libraries
from build of runtime libraries like libunwind, libc++, libc++abi and
compiler-rt. The compiler-rt helper module already implemented caching
for results avoid repeated Clang invocations.

This change moves the compiler-rt implementation into a shared location
and reuses it from other runtimes to reduce duplication and speed up
the build.

Differential Revision: https://reviews.llvm.org/D88458

GitOrigin-RevId: 22acda48ff32712746dad3079579f03c6e89e04c