[turbofan] Fix inconsistent typing of NumberFloor(NumberDivide(...))
In typed-optimization, Turbofan optimized NumberFloor(NumberDivide(...)) patterns where both inputs are known to be of Unsigned32 type, but the replacement couldn't be typed consistently. This CL introduces a new operator Unsigned32Divide, which has the same semantics, but can be typed consistently and thus allows the simplified lowering verifier to validate the graph correctly. Bug: v8:12619 Change-Id: Iad77154d3d840c94edfd3ab91ffa37c840da0bc9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3644790 Commit-Queue: Nico Hartmann <nicohartmann@chromium.org> Reviewed-by:Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/main@{#80967}
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