[PATCH] D69922: [OpenMP] Use the OpenMP-IR-Builder

Alexey Bataev via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Fri Nov 8 07:31:19 PST 2019


ABataev added inline comments.


================
Comment at: clang/test/OpenMP/barrier_codegen.cpp:22
+// CLANGCG-NOT: readonly
+// IRBUILDER:      ; Function Attrs: nofree nosync nounwind readonly
+// IRBUILDER-NEXT: declare i32 @__kmpc_global_thread_num(%struct.ident_t*)
----------------
Not sure about correct use of `nosync` and `readonly` attributes. OpenMP runtime uses lazy initialization of the runtime library and when any runtime function is called, the inner parts of the OpenMP runtime are initialized automatically. It may use some sync primitives and may modify memory, I assume. Same about `nofree`.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69922/new/

https://reviews.llvm.org/D69922





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