[infra] Making a change to third-party/benchmark/src/sysinfo.cc caused nothing to be built in CI

[dpaoliello]

I recently made a fix that only changed third-party/benchmark/src/sysinfo.cc: #147357

CI was marked as successful, but on later inspection it looks like nothing was built: https://github.com/llvm/llvm-project/actions/runs/16124071447/job/45496681730

Seems like there's a gap in how CI chooses which projects to build?

[llvmbot]

@llvm/issue-subscribers-infrastructure

Author: Daniel Paoliello (dpaoliello)

I recently made a fix that only changed `third-party/benchmark/src/sysinfo.cc`: #147357

CI was marked as successful, but on later inspection it looks like nothing was built: <https://github.com/llvm/llvm-project/actions/runs/16124071447/job/45496681730>

Seems like there's a gap in how CI chooses which projects to build?