[Openmp-commits] [PATCH] D14031: [OpenMP] Initial implementation of OpenMP offloading library - libomptarget.

[Jonas Hahnfeld via Openmp-commits]

Hahnfeld added a comment.

In http://reviews.llvm.org/D14031#320528, @RaviNarayanaswamy wrote:

> OpenMP says : " If the corresponding list item is not present in the device data environment then no assignment occurs to or from the original list item."
>
> Device.IsInit being false can be one's implementation as the list item not present in the device data environment.
>
> Ravi


Sorry for not directly posting the code in question that I had in mind:

  #include <stdio.h>
  
  #pragma omp declare target
  int a = 1;
  #pragma omp end declare target
  
  int main(int argc, char* argv[]) {
  	a = 2;
  	#pragma omp target update to(a)
  
  	#pragma omp target
  	{
  		printf("a = %d\n", a);
  	}
  
  	return 0;
  }

What would the expected result be? However I just noticed that yesterday's simple `init()` didn't change it to `2` because the code and global variables are still only mapped in the first `omp target`...


http://reviews.llvm.org/D14031