[PATCH] D100065: [flang] Enforce a limit on recursive PDT instantiations

[Peter Klausler via Phabricator via llvm-commits]

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For pernicious test cases with explicit non-constant actual
type parameter expressions in components, e.g.:

  type :: t(k)
    integer, kind :: k
    type(t(k+1)), pointer :: p
  end type

we should detect the infinite recursion and complain rather
than looping until the stack overflows.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D100065

Files:
  flang/include/flang/Semantics/tools.h
  flang/include/flang/Semantics/type.h
  flang/lib/Semantics/expression.cpp
  flang/lib/Semantics/resolve-names.cpp
  flang/lib/Semantics/scope.cpp
  flang/lib/Semantics/tools.cpp
  flang/lib/Semantics/type.cpp

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