NimishMishra aec87a2143 [llvm][mlir][flang][OpenMP] Emit __atomic_load and __atomic_compare_exchange libcalls for complex types in atomic update (#92364) ...

This patch adds functionality to emit relevant libcalls in case
atomicrmw instruction can not be emitted (for instance, in case of
complex types). The IRBuilder is modified to directly emit __atomic_load
and __atomic_compare_exchange libcalls. The added functions follow a
similar codegen path as Clang, so that LLVM Flang generates almost
similar IR as Clang.

Fixes https://github.com/llvm/llvm-project/issues/83760 and
https://github.com/llvm/llvm-project/issues/75138

Co-authored-by: Michael Kruse <llvm-project@meinersbur.de>

2024-10-02 23:32:36 -07:00

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