| commit | db64e69fa250ea3a8d7a761220a7922fbdad0f2c | [log] [tgz] |
|---|---|---|
| author | Abid Qadeer <haqadeer@amd.com> | Wed Sep 11 09:31:53 2024 +0100 |
| committer | GitHub <noreply@github.com> | Wed Sep 11 09:31:53 2024 +0100 |
| tree | 6a89e88dc5a91fb9db1071d2151b1d42745b5643 | |
| parent | c9aa55da62b2a9e482c1877897152fb3c47719d2 [diff] |
[flang][debug] Handle 'used' module. (#107626)
As described in #98883, we have to qualify a module variable name in
debugger to get its value. This PR tries to remove this limitation.
LLVM provides `DIImportedEntity` to handle such cases but the PR is made
more complicated due to the following 2 issues.
1. The MLIR attributes are readonly and we have a circular dependency
here. This has to be handled using the recursive interface provided by
the MLIR. This requires us to first create a place holder
`DISubprogramAttr` which is used in creating `DIImportedEntityAttr`.
Later another `DISubprogramAttr` is created which replaces the place
holder.
2. The flang IR does not provide any information about the 'used' module
so this has to be extracted by doing a pass over the
`DeclareOp` in the function. This presents certain limitation as 'only'
and module variable renaming may not be handled properly.
Due to the change in `DISubprogramAttr`, some tests also needed to be
adjusted.
Fixes #98883.
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