https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87270
Bug ID: 87270
Summary: "FINAL" subroutine is called when compiled with
"gfortran -O1", but not "gfortran -O0"
Product: gcc
Version: 8.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: andrew at fluidgravity dot co.uk
Target Milestone: ---
Created attachment 44676
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44676&action=edit
code.f90
Compile and the attached code with gfortran 8.1.0:
> gfortran -O1 code.f90 && ./a.out
main: check 1
create: check 1
create: check 2
main: check 2
cleanup: check 1
Program received signal SIGSEGV: Segmentation fault - invalid memory reference.
Backtrace for this error:
#0 0x10e293f3c
#1 0x10e2932e3
#2 0x7fff670f4f59
#3 0x10e28bbe2
#4 0x10e28bddf
#5 0x10e28c6f1
#6 0x10e28c7ad
Segmentation fault: 11
The error does not occur if compiled without "-O1" or with "-O0".
It also works with gfortran 7.3.1
Using "-O0", I get this:
> gfortran -O0 test01.f90 && ./a.out
main: check 1
create: check 1
create: check 2
main: check 2
create: check 1
create: check 2
main: check 3
So, the 'cleanup' function is called with one option, but not the other.
