================
@@ -497,6 +497,11 @@ Expected<SmallVector<StringRef>> getInput(const ArgList
&Args) {
continue;
}
+ // Skip '-lcudadevrt'.
+ if (Arg->getOption().matches(OPT_library) &&
+ StringRef(Arg->getValue()) == "cudadevrt")
----------------
darkbuck wrote:
`cudadevrt` is different from `libdevice`. The latter is a NVVM/LLVM bitcode
library, but the former is a CUDA fatbin
(`/usr/local/cuda/targets/x86_64-linux/lib/libcudadevrt.a` for the default
installation), which has only stubs of those 2 device functions (in PTX and
SASS) for device-side kernel launch. We need to pass `-lcudadevrt` to `nvlink`.
AFAIK, there's no option to forward that optino as well as `-L <path>` from
`clang-nvlink-wrapper` to `nvlink`. Do we need additional option to enable that
forwarding from `clang-nvlink-wrapper` to `nvlink`.
I agreed that `-Xoffload-linker` makes the change to `clang-linker-wrapper`
unnecessary.
https://github.com/llvm/llvm-project/pull/165519
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