[Bug c/110053] New: csmith: problems with -O1 and -O2 in same file

[dcb314 at hotmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110053

            Bug ID: 110053
           Summary: csmith: problems with -O1 and -O2 in same file
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 55222
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55222&action=edit
C source code

I think there are two bugs found by the same source code file:

foundBugs $ ../results/bin/gcc -w bug929.c
foundBugs $ ./a.out
checksum = D6B625E3
foundBugs $ ../results/bin/gcc -w -O1 bug929.c
foundBugs $ ./a.out
checksum = 3BB0D0B7
foundBugs $ ../results/bin/gcc -w -O2 bug929.c
foundBugs $ ./a.out
checksum = FBCD12E5
foundBugs $ ../results/bin/gcc -w -O2 -fno-strict-aliasing bug929.c
foundBugs $ ./a.out
checksum = FBCD12E5
foundBugs $ ../results/bin/gcc --version
gcc (794326a744006ffe) 14.0.0 20230530 (experimental)