tree e225edac90acdcb1bef723e80f6a5950beb20483
parent 26fcc3da5f05522deac4fb56430bd7e9c6769de6
author peter klausler <pklausler@nvidia.com> 1634161341 -0700
committer Copybara-Service <copybara-worker@google.com> 1634250339 -0700

[flang] Fold LGE/LGT/LLE/LLT intrinsic functions

Fold the legacy intrinsic functions LGE, LGT, LLE, & LLT
by rewriting them into character relational expressions and
then folding those.  Also fix folding of comparisons of
character values of distinct lengths: the shorter value must
be padded with blanks.  (This fix exposed some bad test cases,
which are also fixed.)

Differential Revision: https://reviews.llvm.org/D111843

GitOrigin-RevId: 6965a776ee192cb4c1a2618c270254fbf70879df