https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727

--- Comment #10 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to Sam James from comment #7)
> Can you try produce a testcase without UB please?

I have some partly reduced code that seems to have no UB.

cvise $ ~/gcc/results/bin/gcc -w -fsanitize=address,undefined bug1002.c
cvise $ ./a.out 1 > 0
cvise $ ~/gcc/results/bin/gcc -w -fsanitize=address,undefined -O1 bug1002.c
cvise $ ./a.out 1 > 1
cvise $ diff 0 1
469c469
< ...checksum after hashing g_994.f3 : 5F99C263
---
> ...checksum after hashing g_994.f3 : 3D4A5D24
cvise $

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