[flang] Merge pull request flang-compiler/f18#469 from flang-compiler/jpr-fold-parame...
authorjeanPerier <jeanPerier@users.noreply.github.com>
Fri, 24 May 2019 08:39:00 +0000 (01:39 -0700)
committerGitHub <noreply@github.com>
Fri, 24 May 2019 08:39:00 +0000 (01:39 -0700)
Prevent possible infinite loop in parameter folding

Original-commit: flang-compiler/f18@debeaedfc33a9c8d8150a53faedb9d07771c1693
Reviewed-on: https://github.com/flang-compiler/f18/pull/469


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