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[flang] Add lowering of I/O statements

Authored by schweitz on Jul 6 2020, 5:05 PM.



Adds the lowering of the various I/O related statements of Fortran.

The lowering targets the I/O runtime interface found in flang/runtime. I/O for scalar objects is performed. Error handling and implied-do constructs are handled.

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schweitz created this revision.Jul 6 2020, 5:05 PM
sscalpone accepted this revision.Jul 6 2020, 9:28 PM
sscalpone added inline comments.

Are we fairly confident in the i/o design now? If so, please update these comments.

This revision is now accepted and ready to land.Jul 6 2020, 9:28 PM

Thanks for pointing out those comments. Yes, the I/O runtime is much further along now. I'll update them.

This revision was automatically updated to reflect the committed changes.
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