llvm-project

d3a813bc - [DTLTO][PS4,PS5] Suppress system headers directory warning (#167685)

[DTLTO][PS4,PS5] Suppress system headers directory warning (#167685) Our driver warns under various circumstances if SDK directories can't be found. This warning is not applicable in ThinLTO codegen mode (-fthinlto-index=). Suppress it. The motivation for doing this is that we sometimes see this warning emitted when DTLTO invokes the compiler on a remote machine to do the LTO backend compilations (with -fthinlto-index=). Internal Ref: TOOLCHAIN-20592