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@abadams abadams commented Feb 1, 2024

bounds_of_lanes is supposed to return scalars, but the Ramp visitor was constructing a broadcast vector constant for the index of the last lane, which was then vectorizing everything else.

Fixes #8054

If we get another fuzzer-found failure coming from the bilateral grid app I'll do some refactoring in the fuzz_schedule test to not have to repeat the whole algorithm.

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abadams commented Feb 1, 2024

@steven-johnson This fixes a bug in #8039, so if we backport that to release 17, we should backport this too.

@abadams abadams merged commit e2448fe into main Feb 1, 2024
steven-johnson pushed a commit that referenced this pull request Feb 1, 2024
ardier pushed a commit to ardier/Halide-mutation that referenced this pull request Mar 3, 2024
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Internal Error triggered by vectorization
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