t1.f90
------
subroutine foo
common /bar/ a, b
integer(4) :: a ,b
a = 1
b = 2
end
t2.f90
------
program test
common /bar/ c, d
integer(4) :: c, d
call foo
if (c/=1 .or. d/=2) call abort
end program test
> ./gfortran -B. -B ../x86_64-unknown-linux-gnu/libgfortran/.libs -o t t1.f90
> t2.f90 -flto
t1.f90:2:0: warning: type of 'bar' does not match original declaration
t2.f90:2:0: note: previously declared here
testcase reduced from for example 436.cactusADM
--
Summary: LTO complains about mismatches in common sections
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Keywords: wrong-code, diagnostic
Severity: normal
Priority: P3
Component: lto
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rguenth at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41576
