[flang-commits] [flang] [mlir] [RFC][Draft][flang][FIR] Model implict box allocations in side effects (PR #178412)

[Tom Eccles via flang-commits]

tblah wrote:

Another possible but ugly solution would be
```
%temp = fir.fake_temporary // has allocation effect on %temp
%0 = fir.embox %val temp %temp // has no allocation effects
```

https://github.com/llvm/llvm-project/pull/178412