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This patch makes the necessary changes to support calling global constructors and destructors on the GPU. The patch in D149340 allows the `lld` linker to create the symbols pointing us to these globals. These should be executed by a single thread, which is more difficult on the GPU because all threads are active. I chose to use an atomic counter to sync every thread on the GPU. This is very slow if you use more than a few thousand threads, but for testing purposes it should be sufficient. Depends on D149340 D149363 Reviewed By: sivachandra Differential Revision: https://reviews.llvm.org/D149398
LLVM libc ========= This directory and its subdirectories contain source code for llvm-libc, a retargetable implementation of the C standard library. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.