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x64: Migrate fcvt_from_sint and fcvt_low_from_sint to ISLE (#4650)

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https://github.com/bytecodealliance/wasmtime/pull/4650
This commit is contained in:
Trevor Elliott
2022-08-10 10:49:02 -07:00
committed by GitHub
parent f8c0a88299
commit a25d52046b
6 changed files with 223 additions and 63 deletions
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28
cranelift/codegen/src/isa/x64/lower.isle
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@@ -2985,3 +2985,31 @@
(rule (lower (selectif_spectre_guard cc (ifcmp a b) x y))
(select_icmp (emit_cmp cc a b) x y))
;; Rules for `fcvt_from_sint` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(rule (lower (has_type $F32 (fcvt_from_sint a @ (value_type $I8))))
(x64_cvtsi2ss $I32 (extend_to_gpr a $I32 (ExtendKind.Sign))))
(rule (lower (has_type $F32 (fcvt_from_sint a @ (value_type $I16))))
(x64_cvtsi2ss $I32 (extend_to_gpr a $I32 (ExtendKind.Sign))))
(rule (lower (has_type $F32 (fcvt_from_sint a @ (value_type (ty_int (fits_in_64 ty))))))
(x64_cvtsi2ss ty a))
(rule (lower (has_type $F64 (fcvt_from_sint a @ (value_type $I8))))
(x64_cvtsi2sd $I32 (extend_to_gpr a $I32 (ExtendKind.Sign))))
(rule (lower (has_type $F64 (fcvt_from_sint a @ (value_type $I16))))
(x64_cvtsi2sd $I32 (extend_to_gpr a $I32 (ExtendKind.Sign))))
(rule (lower (has_type $F64 (fcvt_from_sint a @ (value_type (ty_int (fits_in_64 ty))))))
(x64_cvtsi2sd ty a))
(rule (lower (fcvt_from_sint a @ (value_type $I32X4)))
(x64_cvtdq2ps a))
;; Rules for `fcvt_low_from_sint` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(rule (lower (fcvt_low_from_sint a @ (value_type ty)))
(x64_cvtdq2pd ty a))