llvm-capstone/flang/test/Driver/werror-parse.f
Andrzej Warzynski d18a9aeae9 [flang] Make the frontend driver error out when requesting multiple actions
With this change, the following invocations will be treated as errors
(multiple actions are specified):
```
$ flang-new -fc1 -E -fsyntax-only file.95
$ flang-new -fc1 -fsyntax-only -fdebug-dump-symbols file.95
```
In the examples above it is not clear whether it is `-fsyntax-only` or
the other action that is run (i.e. `-E` or `-fdebug-dump-symbols`). It
makes sense to disallow such usage. This should also lead to cleaner and
clearer tests (the `RUN` lines using `%flang_fc1` will only allow one
action).

This change means that `flang-new -fc1` and `clang -cc1` will behave
differently when multiple action options are specified. As frontend
drivers are mostly used by compiler developers, this shouldn't affect or
confuse the compiler end-users. Also, `flang-new` and `clang` remain
consistent.

Tests are updated accordingly. More specifically, I've made sure that
every test specifies only one action. I've also taken the opportunity to
simplify "multiple-input-files.f90" a bit.

Differential Revision: https://reviews.llvm.org/D111781
2021-12-17 10:05:28 +00:00

34 lines
1.7 KiB
Fortran

! Ensure argument -Werror work as expected, this file checks for the functional correctness for
! actions that extend the PrescanAndSemaAction, particularly for Semantic warnings/errors.
! Multiple RUN lines are added to make sure that the behavior is consistent across multiple actions.
! RUN: not %flang_fc1 -fsyntax-only -std=f2018 -Werror %s 2>&1 | FileCheck %s --check-prefix=WITH
! RUN: not %flang_fc1 -std=f2018 -Werror -fdebug-dump-parse-tree %s 2>&1 | FileCheck %s --check-prefix=WITH
! RUN: not %flang_fc1 -std=f2018 -Werror -fdebug-unparse-with-symbols %s 2>&1 | FileCheck %s --check-prefix=WITH
! RUN: not %flang_fc1 -std=f2018 -Werror -fdebug-unparse %s 2>&1 | FileCheck %s --check-prefix=WITH
! RUN: not %flang_fc1 -std=f2018 -Werror -fdebug-dump-symbols %s 2>&1 | FileCheck %s --check-prefix=WITH
! RUN: %flang_fc1 -fsyntax-only -std=f2018 %s 2>&1 | FileCheck %s --allow-empty --check-prefix=WITHOUT
! RUN: %flang_fc1 -std=f2018 -fdebug-dump-parse-tree %s 2>&1 | FileCheck %s --allow-empty --check-prefix=WITHOUT
! RUN: %flang_fc1 -std=f2018 -fdebug-unparse-with-symbols %s 2>&1 | FileCheck %s --allow-empty --check-prefix=WITHOUT
! RUN: %flang_fc1 -std=f2018 -fdebug-unparse %s 2>&1 | FileCheck %s --allow-empty --check-prefix=WITHOUT
! RUN: %flang_fc1 -std=f2018 -fdebug-dump-symbols %s 2>&1 | FileCheck %s --allow-empty --check-prefix=WITHOUT
!-----------------------------------------
! EXPECTED OUTPUT WITH -Werror
!-----------------------------------------
! WITH: Could not parse
!-----------------------------------------
! EXPECTED OUTPUT WITHOUT -Werror
!-----------------------------------------
! WITHOUT-NOT: Could not parse
#ifndef _OM_NO_IOSTREAM
#ifdef WIN32
#ifndef USE_IOSTREAM
#define USE_IOSTREAM
#endif USE_IOSTREAM
#endif WIN32