llvm-project

4b8b7dbb - [ci][libc] Switch premerge libc runtime to full-build mode (#231937)

[ci][libc] Switch premerge libc runtime to full-build mode (#231937) Enable full-build mode for libc in premerge CI when check-libc is targeted, skipping death and shared math tests to keep execution fast. Also add a libc-headers dependency to test rules to prevent parallel build races against public header generation. Assisted-by: Automated tooling, human reviewed.