[all-commits] [llvm/llvm-project] aca901: [flang] Fix crash on SELECT RANK

[Peter Klausler via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: aca9016bcde040ea03512ee1e23f61f08b3b07b9
      https://github.com/llvm/llvm-project/commit/aca9016bcde040ea03512ee1e23f61f08b3b07b9
  Author: Peter Klausler <pklausler at nvidia.com>
  Date:   2023-02-12 (Sun, 12 Feb 2023)

  Changed paths:
    M flang/include/flang/Evaluate/tools.h
    M flang/lib/Evaluate/shape.cpp
    M flang/lib/Evaluate/tools.cpp
    M flang/lib/Semantics/expression.cpp

  Log Message:
  -----------
  [flang] Fix crash on SELECT RANK

In some circumstances, such as in compile-time array shape analysis,
clients of the utility function ResolveAssociations() don't really
want it to drill all of the way down to an assumed-rank dummy argument.
Add a variation, ResolveAssociationsExceptSelectRank(), that
will return a specific rank case's AssocEntity symbol instead.
This fixes a crash in subscript validation checking that stemmed from
deducing an incorrect number of lower and upper bound expressions
from a specific rank case association entity.

Differential Revision: https://reviews.llvm.org/D143778