[Openmp-commits] [PATCH] D64943: [Clang][OpenMP offload] Eliminate use of OpenMP linker script

Tue Aug 20 14:15:13 PDT 2019

sdmitriev added a comment.

In D64943#1633164 <https://reviews.llvm.org/D64943#1633164>, @ABataev wrote:

> In D64943#1619958 <https://reviews.llvm.org/D64943#1619958>, @sdmitriev wrote:
>
> > As I understand ‘atexit’ solution would be target dependent (‘__cxa_atexit’ on Linux and ‘atexit’ on Windows) whereas @llvm.global_ctors/dtors variables offer similar and platform neutral functionality (http://llvm.org/docs/LangRef.html#the-llvm-global-ctors-global-variable). Why do you think that ‘atexit’ is a better choice?
>
>
> Because it does not work on Windows, better to have portable solution, if possible.

@vzakhari has already committed his fix for llvm.global_dtors (https://reviews.llvm.org/D66373), so I assume use of llvm.global_dtors in this patch would no longer cause problems on Windows.

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https://reviews.llvm.org/D64943