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[AArch64] Port min/max to ISLE (#4374)

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Copyright (c) 2022, Arm Limited.
This commit is contained in:
Sam Parker
2022-07-05 17:16:45 +01:00
committed by GitHub
parent e91f493ff5
commit d9e0e6a6a9
6 changed files with 511 additions and 28 deletions
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14
cranelift/codegen/src/isa/aarch64/lower.isle
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@@ -499,6 +499,20 @@
(result Reg (msub $I64 div y64 x64)))
result))
;;; Rules for integer min/max: umin, imin, umax, imax ;;;;;;;;;;;;;;;;;;;;;;;;;
(rule (lower (has_type ty @ (not_i64x2) (imin x y)))
(vec_rrr (VecALUOp.Smin) x y (vector_size ty)))
(rule (lower (has_type ty @ (not_i64x2) (umin x y)))
(vec_rrr (VecALUOp.Umin) x y (vector_size ty)))
(rule (lower (has_type ty @ (not_i64x2) (imax x y)))
(vec_rrr (VecALUOp.Smax) x y (vector_size ty)))
(rule (lower (has_type ty @ (not_i64x2) (umax x y)))
(vec_rrr (VecALUOp.Umax) x y (vector_size ty)))
;;;; Rules for `uextend` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; General rule for extending input to an output which fits in a single