CUDA: Factor out helper for detecting native CUDA architectures

Prepare to use it for other languages.

1 files changed, 2 insertions, 23 deletions

diff --git a/Modules/CMakeCUDACompilerABI.cu b/Modules/CMakeCUDACompilerABI.cu
index 8463e86..b04d0ec 100644
--- a/Modules/CMakeCUDACompilerABI.cu
+++ b/Modules/CMakeCUDACompilerABI.cu
@@ -2,11 +2,8 @@
 #  error "A C or C++ compiler has been selected for CUDA"
 #endif
 
-#include <cstdio>
-
-#include <cuda_runtime.h>
-
 #include "CMakeCompilerABI.h"
+#include "CMakeCompilerCUDAArch.h"
 
 int main(int argc, char* argv[])
 {
@@ -19,25 +16,7 @@ int main(int argc, char* argv[])
 #endif
   static_cast<void>(argv);
 
-  int count = 0;
-  if (cudaGetDeviceCount(&count) != cudaSuccess || count == 0) {
-    std::fprintf(stderr, "No CUDA devices found.\n");
-    return -1;
-  }
-
-  int found = 0;
-  const char* sep = "";
-  for (int device = 0; device < count; ++device) {
-    cudaDeviceProp prop;
-    if (cudaGetDeviceProperties(&prop, device) == cudaSuccess) {
-      std::printf("%s%d%d", sep, prop.major, prop.minor);
-      sep = ";";
-      found = 1;
-    }
-  }
-
-  if (!found) {
-    std::fprintf(stderr, "No CUDA architecture detected from any devices.\n");
+  if (!cmakeCompilerCUDAArch()) {
     // Convince the compiler that the non-zero return value depends
     // on the info strings so they are not optimized out.
     return require ? -1 : 1;