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[AArch64] Port AtomicLoad and AtomicStore to ISLE (#4301)

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Copyright (c) 2022, Arm Limited.
This commit is contained in:
Sam Parker
2022-06-29 20:12:48 +01:00
committed by GitHub
parent f0278c5db7
commit fb61774df2
6 changed files with 26 additions and 45 deletions
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15
cranelift/codegen/src/isa/aarch64/lower.isle
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@@ -1271,7 +1271,20 @@
(let ((use_allocated_encoding bool (is_not_baldrdash_call_conv)))
(side_effect (udf use_allocated_encoding trap_code))))
;;;; Rules for `AtomicRMW` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;; Rules for `AtomicLoad` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(rule (lower (has_type (valid_atomic_transaction ty) (atomic_load flags addr)))
(load_acquire ty addr))
;;;; Rules for `AtomicStore` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(rule (lower (atomic_store flags
src @ (value_type (valid_atomic_transaction ty))
addr))
(side_effect (store_release ty src addr)))
;;;; Rules for `AtomicRMW` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(rule 1 (lower (and (use_lse)
(has_type (valid_atomic_transaction ty)