[Bug tree-optimization/81388] Incorrect code generation with -O1 -fno-strict-overflow

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81388

--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> ---
(it helps to describe in what way the code is wrong, for instance in a way that
makes the testcase abort)
Apparently ivcanon thinks the number of iterations is constant, as it would be
for the condition dst != end.