[flang-commits] [PATCH] D113310: [flang] Distinguish error/warning cases for bad jumps into constructs

[Peter Klausler via Phabricator via flang-commits]

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Previously, jumps to labels in constructs from exterior statements
would elicit only a warning.  Upgrade these to errors unless the
branch into the construct would enter into only DO, IF, and SELECT CASE
constructs, whose interiors don't scope variables or have other
set-up/tear-down semantics.  Branches into these "safe" constructs
are still errors if they're nested in an unsafe construct that doesn't
also enclose the exterior branch statement.


https://reviews.llvm.org/D113310

Files:
  flang/lib/Semantics/resolve-labels.cpp
  flang/test/Semantics/label05.f90
  flang/test/Semantics/label14.f90

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