[flang-commits] [PATCH] D112244: [flang] Fix bogus folding error for ISHFT(x, negative)

[Peter Klausler via Phabricator via flang-commits]

klausler created this revision.
klausler added reviewers: schweitz, jeanPerier.
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Negative shift counts are of course valid for ISHFT when
shifting to the right.  This patch decouples the folding of
ISHFT from that of SHIFTA/L/R and adds tests.


https://reviews.llvm.org/D112244

Files:
  flang/lib/Evaluate/fold-integer.cpp
  flang/test/Evaluate/fold-ishft.f90
  flang/test/Evaluate/folding19.f90

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