[llvm-bugs] [Bug 41756] New: __nvvm_shfl_sync_idx_i32 error when building Clang OpenMP offload support

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=41756

            Bug ID: 41756
           Summary: __nvvm_shfl_sync_idx_i32 error when building Clang
                    OpenMP offload support
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: OpenMP
          Assignee: unassignedclangbugs at nondot.org
          Reporter: csdaley at lbl.gov
                CC: llvm-bugs at lists.llvm.org

I cannot compile the OpenMP offload file parallel.cu-sm_60.bc. I am using
CUDA-9.2.

```
/project/projectdirs/m888/csdaley/software/cgpu/llvm/9.0.0-git-patched-upstream_20190502/lib/clang/9.0.0/include
/__clang_cuda_intrinsics.h:173:35: error: '__nvvm_shfl_sync_idx_i32' needs
target feature ptx60|ptx61|ptx63|ptx6
4
make -f projects/compiler-rt/lib/hwasan/CMakeFiles/hwasan.dir/build.make
projects/compiler-rt/lib/hwasan/CMakeFi
les/hwasan.dir/depend
__MAKE_SYNC_SHUFFLES(__shfl_sync, __nvvm_shfl_sync_idx_i32,
                                  ^

projects/openmp/libomptarget/deviceRTLs/nvptx/CMakeFiles/omptarget-nvptx-60-bc.dir/build.make:104:
recipe for target
'projects/openmp/libomptarget/deviceRTLs/nvptx/parallel.cu-sm_60.bc' failed
make[2]: ***
[projects/openmp/libomptarget/deviceRTLs/nvptx/parallel.cu-sm_60.bc] Error 1
make[2]: *** Waiting for unfinished jobs....
```

It appears to be an issue with commit
https://github.com/llvm-mirror/clang/commit/eee685e5e1a9e12245a2a20bfd44db99ca63f8ce
because rolling back 1 commit allows me to build the compiler.

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