[flang-commits] [PATCH] D150331: [flang] Parenthesize RHS arguments to defined assignments (bug #62599)

[Peter Klausler via Phabricator via flang-commits]

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The right-hand sides of assignment statements are always expressions,  
never variables.  When an assignment statement is converted into a call
to a defined assignment subroutine, and the actual argument being associated
with the second dummy argument is a variable, and the dummy argument does
not have the VALUE attribute, wrap it with parentheses so that lowering
will pass it by means of a temporary.

Fixes https://github.com/llvm/llvm-project/issues/62599.


https://reviews.llvm.org/D150331

Files:
  flang/lib/Semantics/expression.cpp
  flang/test/Lower/array-user-def-assignments.f90
  flang/test/Lower/user-defined-operators.f90
  flang/test/Semantics/defined-ops.f90

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