Abid Qadeer 76347ee958
[flang][debug] Improve handling of dummy character arguments. (#108283)
As described in #107998, we were not handling the case well when length
of the character is not part of the type. This PR handles one of the
case when the length can be calculated by looking at the result of
corresponding `fir.unboxchar`.

The DIStringTypeAttr have a `stringLength` field that can be a variable.
We create an artificial variable that will hold the length and used as
value of `stringLength` field. The variable is then attached with
a `DbgValueOp`.

Fixes #107998.
2024-09-18 13:52:23 +01:00
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