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      1 // RUN: %clang_cc1 -triple nvptx-unknown-unknown -O3 -S -o %t %s -emit-llvm
      2 // RUN: %clang_cc1 -triple nvptx64-unknown-unknown -O3 -S -o %t %s -emit-llvm
      3 
      4 // Just make sure Clang uses the proper calling convention for the NVPTX back-end.
      5 // If something is wrong, the back-end will fail.
      6 void foo(float* a,
      7          float* b) {
      8   a[0] = b[0];
      9 }
     10