Abid Qadeer 1094ee71da [flang][debug] Better handle array lower bound of assumed shape arrays. (#110302) ...

As mentioned in #108633, we don't respect the lower bound of the assumed
shape arrays if those were specified. It happens in both cases:
1. When caller has non-default lower bound and callee has default
2. When callee has non-default lower bound and caller has default

This PR tries to fix this issue by improving our generation of lower
bound attribute on DICompositeTypeAttr. If we see a lower bound in the
declaration, we respect that. Note that same function is also used for
allocatable/pointer variables. We make sure that we get the lower bound
from descriptor in those cases. Please note that DWARF assumes a lower
bound of 1 so in many cases we don't need to generate the lower bound.

Fixes #108633.

2024-09-30 20:31:08 +01:00

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