[llvm] [OpenMP] Port the OpenMP device runtime to direct C++ compilation (PR #123673)

[Joseph Huber via llvm-commits]

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@@ -15,14 +15,10 @@
 #include "Interface.h"
 #include "Mapping.h"
 
-#pragma omp begin declare target device_type(nohost)
-
 using namespace ompx;
 
 namespace impl {
 
-bool isSharedMemPtr(const void *Ptr) { return false; }
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jhuber6 wrote:

This is pure device code, this only exists to make the variant system happy because it still needs to parse for the CPU compilation. This completely removes that inconvenient requirement. 

https://github.com/llvm/llvm-project/pull/123673