[all-commits] [llvm/llvm-project] 8be464: [flang] Use hlfir.cmpchar for SELECT CASE of chars...

[Eugene Epshteyn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8be46410248f8298af1f12be1c52e2824ce25951
      https://github.com/llvm/llvm-project/commit/8be46410248f8298af1f12be1c52e2824ce25951
  Author: Eugene Epshteyn <eepshteyn at nvidia.com>
  Date:   2025-11-21 (Fri, 21 Nov 2025)

  Changed paths:
    M flang/lib/Lower/Bridge.cpp
    M flang/test/Lower/select-case-statement.f90

  Log Message:
  -----------
  [flang] Use hlfir.cmpchar for SELECT CASE of charsSelect case hlfir cmpchar (#168476)

For SELECT CASE with character selector, instead of allways calling
runtime comparison function, emit hlfir.cmpchar. This has different
behaviors at different optimization levels: at -O0, it still emits
flang-rt call, but at higher optimization levels it does inline
comparison. Modify test/Lower/select-case-statement.f90 to test both
comparison cases.



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