tree 481ffd4c3f418833bbf5ed31f417a796406f9aea
parent 09fe6f6692339d6d6e33a15c87270d7b63e7e109
author Joel E. Denny <jdenny.ornl@gmail.com> 1613750392 -0500
committer Copybara-Service <copybara-worker@google.com> 1614413325 -0800

[OpenMP] Fix nvptx CUDA_VERSION conversion

As mentioned in PR#49250, without this patch, ptxas for CUDA 9.1 fails
in the following two tests:

- openmp/libomptarget/test/mapping/lambda_mapping.cpp
- openmp/libomptarget/test/offloading/bug49021.cpp

The error looks like:

```
ptxas /tmp/lambda_mapping-081ea9.s, line 828; error   : Not a name of any known instruction: 'activemask'
```

The problem is that our cmake script converts CUDA version strings
incorrectly: 9.1 becomes 9100, but it should be 9010, as shown in
`getCudaVersion` in `clang/lib/Driver/ToolChains/Cuda.cpp`.  Thus,
`openmp/libomptarget/deviceRTLs/nvptx/src/target_impl.cu`
inadvertently enables `activemask` because it apparently becomes
available in 9.2.  This patch fixes the conversion.

This patch does not fix the other two tests in PR#49250.

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D97012

GitOrigin-RevId: ef8b3b5ffd562955fbb78c72c7820cd9cd99d313