[flang-commits] [PATCH] D122419: [flang][codegen] ensure descriptor lower bounds are LBOUND compliant

[Jean Perier via Phabricator via flang-commits]

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Follow-up of https://reviews.llvm.org/D121488 to ensure all descriptors
created inline complies with LBOUND requirement that the lower bound is
`1` when the related dimension extent is zero.

Both fir.xrebox and fir.xembox codegen is updated to enforce this
constraint.

Also upstream the "normalized lower bound" attribute that was added in fir-dev
since embox codegen was upstreamed, it is conflicting with this patch
otherwise.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D122419

Files:
  flang/include/flang/Optimizer/Dialect/FIROps.h
  flang/lib/Optimizer/CodeGen/CodeGen.cpp
  flang/test/Fir/convert-to-llvm.fir

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