https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106331
Bug ID: 106331
Summary: Whole array assignment of empty string segfaults with
-Og
Product: gcc
Version: 12.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: stuart_mentzer at objexx dot com
Target Milestone: ---
Whole array assignment of the empty string to a character array segfaults if
built with -Og.
PROGRAM main
CHARACTER(LEN=24) :: a(2)
a = ''
END PROGRAM
These variations run OK:
- Not built with -Og
- Assignment is to scalar instead of array
- Assignment is a space character
- Assignment to element of the array
This is a regression I am seeing in 12.1.0 but did not get with 11.3.0.
Tested on MinGW (Windows 10) and Manjaro with GFortran 12.1.0.
The error message I get on Windows is:
Program received signal SIGSEGV: Segmentation fault - invalid memory reference.
