Don't inject undef() in the simplifier #7791
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We shouldn't be using undef() in the simplifier. This replaces a load with a constant false predicate with a zero instead. I also added a guard around some dubious logic about out of bounds loads. out of bounds loads may be reachable if they have a false predicate, so I changed this simplification to only trigger if the load is unpredicated.
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This fixes #7786 |
steven-johnson
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Aug 21, 2023
ardier
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Mar 3, 2024
We shouldn't be using undef() in the simplifier. This replaces a load with a constant false predicate with a zero instead. I also added a guard around some dubious logic about out of bounds loads. out of bounds loads may be reachable if they have a false predicate, so I changed this simplification to only trigger if the load is unpredicated.
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We shouldn't be using undef() in the simplifier. This replaces a load with a constant false predicate with a zero instead.
I also added a guard around some dubious logic about out of bounds loads. out of bounds loads may be reachable if they have a false predicate, so I changed this simplification to only trigger if the load is unpredicated.