[PATCH] D120911: [CUDA][HIP] Fix offloading kind for linking C++ programs

[Yaxun Liu via Phabricator via cfe-commits]

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When both CUDA or HIP programs and C++ programs are passed
to clang driver without `-c`, C++ programs are treated as CUDA
or HIP program, which is incorrect.

This is because action builder sets the offloading kind of input
job actions to the linking action to be the union of offloading
kind of the input job actions, i.e. if there is one HIP or CUDA
input to the linker, then all the input to the linker is marked
as HIP or CUDA.

To fix this issue, the offload action builder tracks the originating
input argument of each host action, which allows it to determine
the active offload kind of each host action. Then the offload
kind of each input action to the linker can be determined
individually.


https://reviews.llvm.org/D120911

Files:
  clang/include/clang/Driver/Action.h
  clang/lib/Driver/Driver.cpp
  clang/test/Driver/hip-phases.hip

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