[PATCH] D55928: [OpenMP] Add flag for preventing the extension to 64 bits for the collapse loop counter

[Gheorghe-Teodor Bercea via Phabricator via cfe-commits]

gtbercea marked an inline comment as done.
gtbercea added inline comments.


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Comment at: docs/OpenMPSupport.rst:120
+compile your program with the `-fopenmp-optimistic-collapse`.
+
+
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hfinkel wrote:
> Can you please clarify here what happens when the loop induction variables are already 64 bits. If any of them are already 64 bits, then we still use 64 bits overall?
> 
This flag is for the user to guarantee that the total size of the collapsed loops can be represented using at most 32 bits (regardless of the actual width of the individual loop induction variables).


Repository:
  rC Clang

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  https://reviews.llvm.org/D55928/new/

https://reviews.llvm.org/D55928