[PATCH] D68394: [HIP] Enable specifying different default gpu arch for HIP/CUDA.

[Artem Belevich via Phabricator via cfe-commits]

tra added inline comments.


================
Comment at: clang/lib/Driver/Driver.cpp:2538
+        : CudaActionBuilderBase(C, Args, Inputs, Action::OFK_Cuda) {
+      DefaultCudaArch = CudaArch::SM_20;
+    }
----------------
This technically depends on the CUDA version.
We do have CUDA version info in `clang/lib/Driver/ToolChains/Cuda.h`
The default for NVCC has been sm_30 since CUDA-9.0.  In fact sm_20 is not supported at all by CUDA-9.0+ at all , so we should bump the default to sm_30 for those versions.



Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D68394/new/

https://reviews.llvm.org/D68394