ConstraintAnalysis: Add more simple inequalities - #8955
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kripken wants to merge 3 commits into
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tlively
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| if (ac->type == bc->type && ac->type.isInteger() && | ||
| ac->add(Literal::makeFromInt32(1, ac->type)) == *bc) { |
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We need to handle overflow here, right? IIRC, we don't consider x > UINT_MAX a contradiction, so we can end up with x > UINT_MAX || x >= 0. Then we would incorrectly turn this into x > UINT_MAX and misoptimize subsequent code.
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These are the last pieces needed before the next PR, which will handle
loop overflows.