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[SingleSource/Atomic] Add preliminary tests for atomic builtins. #94

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[SingleSource/Atomic] Add preliminary tests for atomic builtins. #94

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Commits on Feb 13, 2024

  1. [SingleSource/Atomic] Add preliminary tests for atomic builtins. 

    There exist atomic IR unit tests and libatomic unit tests, but neither
can test the atomicity and interoperability of atomic builtins and
compiler-rt's atomic library. These tests aim to approximate behaviour
encountered in user code.

These tests have caught issues in Clang. See
llvm/llvm-project#74349 and
llvm/llvm-project#73176 for LLVM changes
inspired by these tests.
    @Logikable
    Logikable committed Feb 13, 2024
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Commits on Feb 27, 2024

  1. Conditionally test with libclang_rt.atomic; always test with -latomic.

    @Logikable
    Logikable committed Feb 27, 2024
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