[all-commits] [llvm/llvm-project] 8880a6: [flang] Don't perform macro replacement unless *.F...

[Peter Klausler via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8880a63a15a011b3265a184c398f2ff81570cdb6
      https://github.com/llvm/llvm-project/commit/8880a63a15a011b3265a184c398f2ff81570cdb6
  Author: peter klausler <pklausler at nvidia.com>
  Date:   2021-02-11 (Thu, 11 Feb 2021)

  Changed paths:
    M flang/lib/Parser/parsing.cpp
    M flang/lib/Parser/preprocessor.cpp
    M flang/lib/Parser/preprocessor.h
    M flang/tools/f18/f18.cpp

  Log Message:
  -----------
  [flang] Don't perform macro replacement unless *.F, *.F90, &c.

Avoid spurious and confusing macro replacements from things like
-DPIC on Fortran source files whose suffixes indicate that preprocessing
is not expected.

Add gfortran-like "-cpp" and "-nocpp" flags to f18 to force predefinition
of macros independent of the source file suffix.

Differential Revision: https://reviews.llvm.org/D96464