On Sun, Aug 8, 2021 at 12:43 PM Roger Sayle wrote:
>
>
> This middle-end patch implements several related improvements to
> tree-ssa's conditional (bit) constant propagation pass. The current
> code handling ordered comparisons contains the comment "If the
> most significant bits are not known we
This middle-end patch implements several related improvements to
tree-ssa's conditional (bit) constant propagation pass. The current
code handling ordered comparisons contains the comment "If the
most significant bits are not known we know nothing" which is not
entirely true [this test even preve