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[interpreter] f64x2.promote_low_f32x4 and f32x4.demote_f64x2_zero
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These 2 instructions were merged as part of WebAssembly#383.

The test cases are add manually to simd_conversions.wast, using
constants from test/core/conversions.wast.
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@ngzhian
ngzhian committed Feb 17, 2021
1 parent fd6904a commit a668f2a
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2 changes: 2 additions & 0 deletions interpreter/binary/decode.ml
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Expand Up @@ -306,6 +306,7 @@ let simd_prefix s =
| 0x52l -> v128_bitselect
| 0x55l -> i32x4_trunc_sat_f64x2_s_zero
| 0x56l -> i32x4_trunc_sat_f64x2_u_zero
| 0x57l -> f32x4_demote_f64x2_zero
| 0x58l ->
let a, o = memop s in
let lane = u8 s in
Expand Down Expand Up @@ -348,6 +349,7 @@ let simd_prefix s =
| 0x6dl -> i8x16_shr_u
| 0x65l -> i8x16_narrow_i16x8_s
| 0x66l -> i8x16_narrow_i16x8_u
| 0x69l -> f64x2_promote_low_f32x4
| 0x6el -> i8x16_add
| 0x6fl -> i8x16_add_sat_s
| 0x70l -> i8x16_add_sat_u
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2 changes: 2 additions & 0 deletions interpreter/binary/encode.ml
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Expand Up @@ -385,6 +385,8 @@ let encode m =
| Unary (V128 V128Op.(I32x4 TruncSatF64x2UZero)) -> simd_op 0x56l
| Unary (V128 V128Op.(F32x4 ConvertI32x4S)) -> simd_op 0xfal
| Unary (V128 V128Op.(F32x4 ConvertI32x4U)) -> simd_op 0xfbl
| Unary (V128 V128Op.(F32x4 DemoteF64x2Zero)) -> simd_op 0x57l
| Unary (V128 V128Op.(F64x2 PromoteLowF32x4)) -> simd_op 0x69l
| Unary (V128 _) -> failwith "unimplemented V128 Unary op"

| Binary (I32 I32Op.Add) -> op 0x6a
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2 changes: 2 additions & 0 deletions interpreter/exec/eval_simd.ml
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Expand Up @@ -50,13 +50,15 @@ module SimdOp (SXX : Simd.S) (Value : ValueType with type t = SXX.t) = struct
| F32x4 Nearest -> to_value (SXX.F32x4.nearest (of_value 1 v))
| F32x4 ConvertI32x4S -> to_value (SXX.F32x4_convert.convert_i32x4_s (of_value 1 v))
| F32x4 ConvertI32x4U -> to_value (SXX.F32x4_convert.convert_i32x4_u (of_value 1 v))
| F32x4 DemoteF64x2Zero -> to_value (SXX.F32x4_convert.demote_f64x2_zero (of_value 1 v))
| F64x2 Abs -> to_value (SXX.F64x2.abs (of_value 1 v))
| F64x2 Neg -> to_value (SXX.F64x2.neg (of_value 1 v))
| F64x2 Sqrt -> to_value (SXX.F64x2.sqrt (of_value 1 v))
| F64x2 Ceil -> to_value (SXX.F64x2.ceil (of_value 1 v))
| F64x2 Floor -> to_value (SXX.F64x2.floor (of_value 1 v))
| F64x2 Trunc -> to_value (SXX.F64x2.trunc (of_value 1 v))
| F64x2 Nearest -> to_value (SXX.F64x2.nearest (of_value 1 v))
| F64x2 PromoteLowF32x4 -> to_value (SXX.F64x2_convert.promote_low_f32x4 (of_value 1 v))
| V128 Not -> to_value (SXX.V128.lognot (of_value 1 v))
| _ -> assert false

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12 changes: 12 additions & 0 deletions interpreter/exec/simd.ml
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Expand Up @@ -212,6 +212,11 @@ sig
module F32x4_convert : sig
val convert_i32x4_s : t -> t
val convert_i32x4_u : t -> t
val demote_f64x2_zero : t -> t
end

module F64x2_convert : sig
val promote_low_f32x4 : t -> t
end
end

Expand Down Expand Up @@ -499,5 +504,12 @@ struct
let convert f v = Rep.of_f32x4 (List.map f (Rep.to_i32x4 v))
let convert_i32x4_s = convert F32_convert.convert_i32_s
let convert_i32x4_u = convert F32_convert.convert_i32_u
let demote_f64x2_zero v =
Rep.(of_f32x4 F32.(List.map F32_convert.demote_f64 (to_f64x2 v) @ [zero; zero]))
end

module F64x2_convert = struct
let promote_low_f32x4 v =
Rep.(of_f64x2 (List.map F64_convert.promote_f32 (Lib.List.take 2 (to_f32x4 v))))
end
end
1 change: 1 addition & 0 deletions interpreter/syntax/ast.ml
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Expand Up @@ -60,6 +60,7 @@ struct
type funop = Abs | Neg | Sqrt
| Ceil | Floor | Trunc | Nearest
| ConvertI32x4S | ConvertI32x4U
| DemoteF64x2Zero | PromoteLowF32x4
type fbinop = Add | Sub | Mul | Div | Min | Max | Pmin | Pmax
| Eq | Ne | Lt | Le | Gt | Ge
type vunop = Not
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2 changes: 2 additions & 0 deletions interpreter/syntax/operators.ml
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Expand Up @@ -450,6 +450,7 @@ let f32x4_convert_i32x4_s = Unary (V128 V128Op.(F32x4 ConvertI32x4S))
let f32x4_convert_i32x4_u = Unary (V128 V128Op.(F32x4 ConvertI32x4U))
let f32x4_pmin = Binary (V128 V128Op.(F32x4 Pmin))
let f32x4_pmax = Binary (V128 V128Op.(F32x4 Pmax))
let f32x4_demote_f64x2_zero = Unary (V128 V128Op.(F32x4 DemoteF64x2Zero))

let f64x2_splat = Convert (V128 V128Op.(F64x2 Splat))
let f64x2_extract_lane imm = SimdExtract (V128Op.F64x2 (ZX, imm))
Expand All @@ -475,3 +476,4 @@ let f64x2_max = Binary (V128 V128Op.(F64x2 Max))
let f64x2_abs = Unary (V128 V128Op.(F64x2 Abs))
let f64x2_pmin = Binary (V128 V128Op.(F64x2 Pmin))
let f64x2_pmax = Binary (V128 V128Op.(F64x2 Pmax))
let f64x2_promote_low_f32x4 = Unary (V128 V128Op.(F64x2 PromoteLowF32x4))
2 changes: 2 additions & 0 deletions interpreter/text/arrange.ml
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Expand Up @@ -229,6 +229,7 @@ struct
| F32x4 Floor -> "f32x4.floor"
| F32x4 Trunc -> "f32x4.trunc"
| F32x4 Nearest -> "f32x4.nearest"
| F32x4 DemoteF64x2Zero -> "f32x4.demote_f64x2_zero"
| F64x2 Ceil -> "f64x2.ceil"
| F64x2 Floor -> "f64x2.floor"
| F64x2 Trunc -> "f64x2.trunc"
Expand All @@ -241,6 +242,7 @@ struct
| F64x2 Abs -> "f64x2.abs"
| F64x2 Neg -> "f64x2.neg"
| F64x2 Sqrt -> "f64x2.sqrt"
| F64x2 PromoteLowF32x4 -> "f64x2.promote_low_f32x4"
| V128 Not -> "v128.not"
| _ -> failwith "Unimplemented v128 unop"

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4 changes: 4 additions & 0 deletions interpreter/text/lexer.mll
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Expand Up @@ -555,6 +555,10 @@ rule token = parse
{ UNARY (ext s i32x4_trunc_sat_f32x4_s i32x4_trunc_sat_f32x4_u) }
| "i32x4.trunc_sat_f64x2_"(sign as s)"_zero"
{ UNARY (ext s i32x4_trunc_sat_f64x2_s_zero i32x4_trunc_sat_f64x2_u_zero) }
| "f64x2.promote_low_f32x4"
{ UNARY f64x2_promote_low_f32x4 }
| "f32x4.demote_f64x2_zero"
{ UNARY f32x4_demote_f64x2_zero }
| "f32x4.convert_i32x4_"(sign as s)
{ UNARY (ext s f32x4_convert_i32x4_s f32x4_convert_i32x4_u) }
| "i8x16.narrow_i16x8_"(sign as s)
Expand Down
152 changes: 152 additions & 0 deletions test/core/simd/simd_conversions.wast
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Expand Up @@ -16,8 +16,160 @@
(i16x8.narrow_i32x4_s (local.get 0) (local.get 1)))
(func (export "i16x8.narrow_i32x4_u") (param v128 v128) (result v128)
(i16x8.narrow_i32x4_u (local.get 0)(local.get 1)))

;; Float to float promote/demote
(func (export "f64x2.promote_low_f32x4") (param v128) (result v128)
(f64x2.promote_low_f32x4 (local.get 0)))
(func (export "f32x4.demote_f64x2_zero") (param v128) (result v128)
(f32x4.demote_f64x2_zero (local.get 0)))
)

;; f64x2.promote_low_f32x4
;; Float constants copied from test/core/conversions.wast.

(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 0.0 0.0 0.0 0.0))
(v128.const f64x2 0.0 0.0))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 -0.0 -0.0 -0.0 -0.0))
(v128.const f64x2 -0.0 -0.0))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 0x1p-149 0x1p-149 0x1p-149 0x1p-149))
(v128.const f64x2 0x1p-149 0x1p-149))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 -0x1p-149 -0x1p-149 -0x1p-149 -0x1p-149))
(v128.const f64x2 -0x1p-149 -0x1p-149))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 1.0 1.0 1.0 1.0))
(v128.const f64x2 1.0 1.0))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 -1.0 -1.0 -1.0 -1.0))
(v128.const f64x2 -1.0 -1.0))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 -0x1.fffffep+127 -0x1.fffffep+127 -0x1.fffffep+127 -0x1.fffffep+127))
(v128.const f64x2 -0x1.fffffep+127 -0x1.fffffep+127))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 0x1.fffffep+127 0x1.fffffep+127 0x1.fffffep+127 0x1.fffffep+127))
(v128.const f64x2 0x1.fffffep+127 0x1.fffffep+127))
;; Generated randomly by picking a random int and reinterpret it to float.
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 0x1p-119 0x1p-119 0x1p-119 0x1p-119))
(v128.const f64x2 0x1p-119 0x1p-119))
;; Generated randomly by picking a random float.
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 0x1.8f867ep+125 0x1.8f867ep+125 0x1.8f867ep+125 0x1.8f867ep+125))
(v128.const f64x2 6.6382536710104395e+37 6.6382536710104395e+37))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 inf inf inf inf))
(v128.const f64x2 inf inf))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 -inf -inf -inf -inf))
(v128.const f64x2 -inf -inf))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 nan nan nan nan))
(v128.const f64x2 nan:canonical nan:canonical))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 nan:0x200000 nan:0x200000 nan:0x200000 nan:0x200000))
(v128.const f64x2 nan:arithmetic nan:arithmetic))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 -nan -nan -nan -nan))
(v128.const f64x2 nan:canonical nan:canonical))
(assert_return (invoke "f64x2.promote_low_f32x4" (v128.const f32x4 -nan:0x200000 -nan:0x200000 -nan:0x200000 -nan:0x200000))
(v128.const f64x2 nan:arithmetic nan:arithmetic))

;; f32x4.demote_f64x2_zero
;; Float constants copied from test/core/conversions.wast.

(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0.0 0.0))
(v128.const f32x4 0.0 0.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0.0 -0.0))
(v128.const f32x4 -0.0 -0.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x0.0000000000001p-1022 0x0.0000000000001p-1022))
(v128.const f32x4 0.0 0.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x0.0000000000001p-1022 -0x0.0000000000001p-1022))
(v128.const f32x4 -0.0 -0.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 1.0 1.0))
(v128.const f32x4 1.0 1.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -1.0 -1.0))
(v128.const f32x4 -1.0 -1.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.fffffe0000000p-127 0x1.fffffe0000000p-127))
(v128.const f32x4 0x1p-126 0x1p-126 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1.fffffe0000000p-127 -0x1.fffffe0000000p-127))
(v128.const f32x4 -0x1p-126 -0x1p-126 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.fffffdfffffffp-127 0x1.fffffdfffffffp-127))
(v128.const f32x4 0x1.fffffcp-127 0x1.fffffcp-127 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1.fffffdfffffffp-127 -0x1.fffffdfffffffp-127))
(v128.const f32x4 -0x1.fffffcp-127 -0x1.fffffcp-127 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1p-149 0x1p-149))
(v128.const f32x4 0x1p-149 0x1p-149 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1p-149 -0x1p-149))
(v128.const f32x4 -0x1p-149 -0x1p-149 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.fffffd0000000p+127 0x1.fffffd0000000p+127))
(v128.const f32x4 0x1.fffffcp+127 0x1.fffffcp+127 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1.fffffd0000000p+127 -0x1.fffffd0000000p+127))
(v128.const f32x4 -0x1.fffffcp+127 -0x1.fffffcp+127 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.fffffd0000001p+127 0x1.fffffd0000001p+127))
(v128.const f32x4 0x1.fffffep+127 0x1.fffffep+127 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1.fffffd0000001p+127 -0x1.fffffd0000001p+127))
(v128.const f32x4 -0x1.fffffep+127 -0x1.fffffep+127 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.fffffep+127 0x1.fffffep+127))
(v128.const f32x4 0x1.fffffep+127 0x1.fffffep+127 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1.fffffep+127 -0x1.fffffep+127))
(v128.const f32x4 -0x1.fffffep+127 -0x1.fffffep+127 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.fffffefffffffp+127 0x1.fffffefffffffp+127))
(v128.const f32x4 0x1.fffffep+127 0x1.fffffep+127 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1.fffffefffffffp+127 -0x1.fffffefffffffp+127))
(v128.const f32x4 -0x1.fffffep+127 -0x1.fffffep+127 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.ffffffp+127 0x1.ffffffp+127))
(v128.const f32x4 inf inf 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1.ffffffp+127 -0x1.ffffffp+127))
(v128.const f32x4 -inf -inf 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1p-119 0x1p-119))
(v128.const f32x4 0x1p-119 0x1p-119 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.8f867ep+125 0x1.8f867ep+125))
(v128.const f32x4 0x1.8f867ep+125 0x1.8f867ep+125 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 inf inf))
(v128.const f32x4 inf inf 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -inf -inf))
(v128.const f32x4 -inf -inf 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.0000000000001p+0 0x1.0000000000001p+0))
(v128.const f32x4 1.0 1.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.fffffffffffffp-1 0x1.fffffffffffffp-1))
(v128.const f32x4 1.0 1.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.0000010000000p+0 0x1.0000010000000p+0))
(v128.const f32x4 0x1.000000p+0 0x1.000000p+0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.0000010000001p+0 0x1.0000010000001p+0))
(v128.const f32x4 0x1.000002p+0 0x1.000002p+0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.000002fffffffp+0 0x1.000002fffffffp+0))
(v128.const f32x4 0x1.000002p+0 0x1.000002p+0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.0000030000000p+0 0x1.0000030000000p+0))
(v128.const f32x4 0x1.000004p+0 0x1.000004p+0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.0000050000000p+0 0x1.0000050000000p+0))
(v128.const f32x4 0x1.000004p+0 0x1.000004p+0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.0000010000000p+24 0x1.0000010000000p+24))
(v128.const f32x4 0x1.0p+24 0x1.0p+24 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.0000010000001p+24 0x1.0000010000001p+24))
(v128.const f32x4 0x1.000002p+24 0x1.000002p+24 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.000002fffffffp+24 0x1.000002fffffffp+24))
(v128.const f32x4 0x1.000002p+24 0x1.000002p+24 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.0000030000000p+24 0x1.0000030000000p+24))
(v128.const f32x4 0x1.000004p+24 0x1.000004p+24 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.4eae4f7024c7p+108 0x1.4eae4f7024c7p+108))
(v128.const f32x4 0x1.4eae5p+108 0x1.4eae5p+108 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.a12e71e358685p-113 0x1.a12e71e358685p-113))
(v128.const f32x4 0x1.a12e72p-113 0x1.a12e72p-113 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.cb98354d521ffp-127 0x1.cb98354d521ffp-127))
(v128.const f32x4 0x1.cb9834p-127 0x1.cb9834p-127 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1.6972b30cfb562p+1 -0x1.6972b30cfb562p+1))
(v128.const f32x4 -0x1.6972b4p+1 -0x1.6972b4p+1 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1.bedbe4819d4c4p+112 -0x1.bedbe4819d4c4p+112))
(v128.const f32x4 -0x1.bedbe4p+112 -0x1.bedbe4p+112 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 nan nan))
(v128.const f32x4 nan:canonical nan:canonical 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 nan:0x4000000000000 nan:0x4000000000000))
(v128.const f32x4 nan:arithmetic nan:arithmetic 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -nan -nan))
(v128.const f32x4 nan:canonical nan:canonical 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -nan:0x4000000000000 -nan:0x4000000000000))
(v128.const f32x4 nan:arithmetic nan:arithmetic 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1p-1022 0x1p-1022))
(v128.const f32x4 0.0 0.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1p-1022 -0x1p-1022))
(v128.const f32x4 -0.0 -0.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.0p-150 0x1.0p-150))
(v128.const f32x4 0.0 0.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1.0p-150 -0x1.0p-150))
(v128.const f32x4 -0.0 -0.0 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 0x1.0000000000001p-150 0x1.0000000000001p-150))
(v128.const f32x4 0x1p-149 0x1p-149 0 0))
(assert_return (invoke "f32x4.demote_f64x2_zero" (v128.const f64x2 -0x1.0000000000001p-150 -0x1.0000000000001p-150))
(v128.const f32x4 -0x1p-149 -0x1p-149 0 0))


;; Integer to floating point
;; f32x4.convert_i32x4_s
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