https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68243
Bug ID: 68243
Summary: QOI: no warning about unused entities in submodules
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: mar...@mpa-garching.mpg.de
Target Milestone: ---
Created attachment 36665
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36665&action=edit
test case
When compiling the attached test case with current gfortran trunk, it emits the
warnings:
martin@marvin ~/tmp $ gfortran -W -Wall -c test.f08
test.f08:12:17:
integer unused1
1
Warning: Unused PRIVATE module variable ‘unused1’ declared at (1)
[-Wunused-value]
test.f08:16:0:
subroutine unused2
Warning: ‘unused2’ defined but not used [-Wunused-function]
But the unused entities "unused3" and "unused4" in the submodule are not
mentioned. As far as I can tell, they are invisible outside the submodule, and
should therefore be provably unused.
