tree 1a75930086d5c723e4203f3d991be5fa0ab57acc
parent 8f7369577d629a1b3f3e34a9e68f2321475e7cc5
author peter klausler <pklausler@nvidia.com> 1623886640 -0700
committer Copybara-Service <copybara-worker@google.com> 1623893820 -0700

[flang] Fix ARM/POWER test failure (folding20.f90)

Recent code for folding MINVAL() didn't allow for architectures
whose C/C++ char type is unsigned, so the value of the maximum
Fortran character was incorrect.  This was caught by the
folding20.f90 test.  The fix is to avoid numeric_limits<> and
use hard values for max signed integers of various character kinds.

Pushing into llvm-project/main to restore ARM/POWER buildbots.

GitOrigin-RevId: fc4f457fcc531871e86ecaaffc46ef98249b8e6a