https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91442
Bug ID: 91442
Summary: Wrong "may be used uninitialized" warning with
allocation on assignment
Product: gcc
Version: 8.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: jellby at yahoo dot com
Target Milestone: ---
Simple test case:
!=======================
program test
character(len=:), allocatable :: string
string='Hello world!'
write(6,*) string
end program
!=======================
Compile with "-Wall":
test.f90:3:0:
string=''
Warning: ‘.string’ may be used uninitialized in this function
[-Wmaybe-uninitialized]
Adding "-O1" removes the warning, though.
