| commit | 0eb4bd27d1ab15ea6b078ac386be01ae13d261a9 | [log] [tgz] |
|---|---|---|
| author | Aaron Ballman <aaron@aaronballman.com> | Thu May 15 12:24:12 2025 -0400 |
| committer | GitHub <noreply@github.com> | Thu May 15 12:24:12 2025 -0400 |
| tree | 42db64c9f959b325272eb4eb5861530faef209e6 | |
| parent | 5defe490c9b1356916245e1832859c361ac8d812 [diff] |
[C] Silence unreachable -Watomic-access diagnostics (#140064)
Accessing the member of a structure or union which is _Atomic-qualified
is undefined behavior in C. We currently diagnose that with a warning
that defaults to an error. In turn, this means we reject a valid program
if the access it not reachable because of the error. e.g.,
if (0)
SomeAtomicStruct.Member = 12; // Was diagnosed
This silences the diagnostic if the member access is not reachable.
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