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

10 lines
370 B
Fortran

! RUN: %flang_fc1 -fdebug-dump-symbols %s 2>&1 | FileCheck %s
! CHECK: init:[INTEGER(4)::1065353216_4,1073741824_4,1077936128_4,1082130432_4]
! Verify that the closure of EQUIVALENCE'd symbols with any DATA
! initialization produces a combined initializer.
real :: a(2), b(2), c(2)
equivalence(a(2),b(1)),(b(2),c(1))
data a(1)/1./,b(1)/2./,c/3.,4./
common /block/ a
end