| commit | bc2004c2e42f633ee4099ea5652df41dba29c79c | [log] [tgz] |
|---|---|---|
| author | Luke Lau <luke@igalia.com> | Wed Jul 16 02:04:13 2025 +0800 |
| committer | GitHub <noreply@github.com> | Wed Jul 16 02:04:13 2025 +0800 |
| tree | 0fd528267c0e3c8778cfd7c1d38f6ce0c9f76b81 | |
| parent | bcd0a7ae2a3ae81545190a0b2796eb63656b5d42 [diff] |
[RISCV] Handle LHS == 0 in isVLKnownLE (#148860) If a VL is zero then it's known to be less than or equal to every other VL. This looks weird on its own since a VL of zero isn't that common. The test diffs come from a type being split resulting in a VP intrinsic's EVL being zero. The motivation for this is to split off part of an upcoming patch I plan on submitting for RISCVVLOptimizer, which generalizes it to handle recurrences, and needs to reason about an initial state of demanded VLs set to zero.
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