tree 5a6cfd5d0b041f192d0cb61d5e9f861a5ee184ee
parent f91a6e6dab44a7eacee2312f955b6e28cb227900
author Asher Mancinelli <ashermancinelli@gmail.com> 1746027993 -0700
committer GitHub <noreply@github.com> 1746027993 -0700
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[flang] Add lowering of volatile references (#132486)

[RFC on
discourse](https://discourse.llvm.org/t/rfc-volatile-representation-in-flang/85404/1)

Flang currently lacks support for volatile variables. For some cases,
the compiler produces TODO error messages and others are ignored. Some
of our tests are like the example from _C.4 Clause 8 notes: The VOLATILE
attribute (8.5.20)_ and require volatile variables.

Prior commits:
```
c9ec1bc753b0 [flang] Handle volatility in lowering and codegen (#135311)
e42f8609858f [flang][nfc] Support volatility in Fir ops (#134858)
b2711e1526f9 [flang][nfc] Support volatile on ref, box, and class types (#134386)
```