Caio Marcelo de Oliveira Filho
ba1b41b504
When handling loops in constant propagation, implement the "FINISHME" comment like copy propagation: perform a first pass to find values that can't be propagated, then perform a second pass with the ACP containing still valid values. Certain values are killed because the loop may run more than one iteration, so we can't copy propagate them as they would be invalid in the later iterations. Reviewed-by: Eric Anholt <eric@anholt.net>
`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
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