https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113396
Bug ID: 113396
Summary: csmith: differences from -O2 to -O3
Product: gcc
Version: 14.0
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 57082
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57082&action=edit
C source code
The attached Csmith generated code does this:
foundBugs $ ~/gcc/results/bin/gcc -w bug998.c
foundBugs $ valgrind -q ./a.out
checksum = 77A231E6
foundBugs $ ~/gcc/results/bin/gcc -w -O2 bug998.c
foundBugs $ valgrind -q ./a.out
checksum = 77A231E6
foundBugs $ ~/gcc/results/bin/gcc -w -O3 bug998.c
foundBugs $ valgrind -q ./a.out
checksum = 130B5204
foundBugs $ ~/gcc/results/bin/gcc -w -O3 -fno-strict-aliasing
-fno-loop-interchange bug998.c
foundBugs $ valgrind -q ./a.out
checksum = 130B5204
foundBugs $
