flang/test/Driver/syntax-only.f90

   1 ! Verify that the driver correctly processes `-fsyntax-only`.
   2 !
   3 ! By default, the compiler driver (`flang`) will create actions/phases to
   4 ! generate machine code (i.e. object files). The `-fsyntax-only` flag is a
   5 ! "phase-control" flag that controls this behavior and makes the driver stop
   6 ! once the semantic checks have been run. The frontend driver (`flang -fc1`)
   7 ! runs `-fsyntax-only` by default (i.e. that's the default action), so the flag
   8 ! can be skipped.
   9
  10 ! RUN: %flang -fsyntax-only %s 2>&1 | FileCheck %s --allow-empty
  11 ! RUN: %flang_fc1 %s 2>&1 | FileCheck %s --allow-empty
  12
  13 ! RUN: rm -rf %t/non-existent-dir/
  14 ! RUN: not %flang -c %s -o %t/non-existent-dir/syntax-only.o 2>&1 | FileCheck %s --check-prefix=NO_FSYNTAX_ONLY
  15 ! RUN: not %flang_fc1 -emit-obj %s -o %t/non-existent-dir/syntax-only.o 2>&1 | FileCheck %s --check-prefix=NO_FSYNTAX_ONLY
  16
  17 ! CHECK-NOT: error
  18 ! NO_FSYNTAX_ONLY: error: failed to create the output file
  19
  20 end program