llvm-project

0c8b435c - [Clang][retry 2] Lift HIPSPV onto the new offload driver (#179902)

[Clang][retry 2] Lift HIPSPV onto the new offload driver (#179902) Update HIPSPV toolchain to support `--offload-new-driver`. Additionally, tailor llvm-spirv invocation for [chipStar](github.com/CHIP-SPV/chipStar) via `spirv64-*-chipstar` offload triple. AFAICT, all the relevant test failures in the previous PR (#178664) came from tests involving `-Xoffload-compiler ‘-###’` in their RUN directives. I have reworked those tests in this PR.