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ff5a14abeb
When trying to change a IV from IV0 < IV1 to IV0' != IV1' we apply fancy adjustments to the may_be_zero condition we compute rather than using the obvious IV0->base >= IV1->base expression (to be able to use > instead of >=?). This doesn't seem to go well. PR tree-optimization/117574 * tree-ssa-loop-niter.cc (number_of_iterations_lt_to_ne): Use the obvious may_be_zero condition. * gcc.dg/torture/pr117574-1.c: New testcase. |
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