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| author | Harald Anlauf <anlauf@gmx.de> | 2023-01-28 17:59:23 +0100 |
|---|---|---|
| committer | Harald Anlauf <anlauf@gmx.de> | 2023-02-05 19:52:10 +0100 |
| commit | 841e585ad936624f2d080512a9f6244b49e71969 (patch) | |
| tree | 897ed5feb15ef8962a066ac09b6ed5123082d1c0 /gcc/fortran | |
| parent | 59c603ca209598d5984f6f001ef5071ee99b6371 (diff) | |
| download | gcc-841e585ad936624f2d080512a9f6244b49e71969.zip gcc-841e585ad936624f2d080512a9f6244b49e71969.tar.gz gcc-841e585ad936624f2d080512a9f6244b49e71969.tar.bz2 | |
Fortran: diagnose USE associated symbols in COMMON blocks [PR108453]
gcc/fortran/ChangeLog:
PR fortran/108453
* match.c (gfc_match_common): A USE associated name shall not appear
in a COMMON block (F2018:C8121).
gcc/testsuite/ChangeLog:
PR fortran/108453
* gfortran.dg/common_27.f90: New test.
(cherry picked from commit aba9ff8f30d4245294ea2583de1dc28f1c7ccf7b)
Diffstat (limited to 'gcc/fortran')
| -rw-r--r-- | gcc/fortran/match.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/fortran/match.c b/gcc/fortran/match.c index 7d06e0e..cd27ff7 100644 --- a/gcc/fortran/match.c +++ b/gcc/fortran/match.c @@ -5297,6 +5297,16 @@ gfc_match_common (void) goto cleanup; } + /* F2018:R874: common-block-object is variable-name [ (array-spec) ] + F2018:C8121: A variable-name shall not be a name made accessible + by use association. */ + if (sym->attr.use_assoc) + { + gfc_error ("Symbol %qs at %C is USE associated from module %qs " + "and cannot occur in COMMON", sym->name, sym->module); + goto cleanup; + } + /* Deal with an optional array specification after the symbol name. */ m = gfc_match_array_spec (&as, true, true); |