[all-commits] [llvm/llvm-project] 8f0f9e: [flang] Fix CHARACTER length folding problem

[Peter Klausler via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 8f0f9eaddf9ea8cbab418a64fb6557928b3c907a
      https://github.com/llvm/llvm-project/commit/8f0f9eaddf9ea8cbab418a64fb6557928b3c907a
  Author: peter klausler <pklausler at nvidia.com>
  Date:   2020-07-07 (Tue, 07 Jul 2020)

  Changed paths:
    M flang/include/flang/Evaluate/type.h
    M flang/lib/Evaluate/fold-integer.cpp
    M flang/lib/Evaluate/shape.cpp
    M flang/lib/Evaluate/type.cpp
    M flang/lib/Evaluate/variable.cpp

  Log Message:
  -----------
  [flang] Fix CHARACTER length folding problem

Do not rewrite LEN(x) or x%len to the expression that specifies
the length of x when that length is not a constant expression.
Its value may have changed since the value of the expression was
first captured in the definition of the object.

Reviewed By: tskeith, sscalpone

Differential Revision: https://reviews.llvm.org/D83352