Fix ISLE icmp optimization rules for vector inputs#12335
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* Fix ISLE optimization for vector inputs (#12179) Add some more `fits_in_64` constraints to types to handle the fact that `iconst_u` can't construct a 128-bit output. Closes #12170 * x64: Fix lowering rules for `shld` (#12321) * x64: Fix lowering rules for `shld` These failed to account for the edge case of 0/width(type) shifts where the `shld` instruction is no longer applicable. Guards are added to ensure that the shift amounts are both greater than zero. This in theory shouldn't have much practical impact since shift-by-zero and shift-by-type-width are both optimized away in the mid-end. That means that this is only possible to expose with opt-level=0 which may help explain why this went undiscovered for ~1 year. Closes #12318 * Fix Winch's encoding of shift-by-32 * Fix ISLE icmp optimization rules for vector inputs (#12335) Closes #12328 * Add release notes --------- Co-authored-by: Zijie Zhao <zzjas98@gmail.com>
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fits_in_64for a few icmp optimization rules to avoid matching 128-bit vectors. Rules at line 320 - 351 are contrained byiconst_sso don't need the fix.Closes #12328