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ImplementationStatus.md (#73)
A centralized location for seeing how up-to-date various implementations are.
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‎proposals/simd/ImplementationStatus.md‎

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| Instruction | LLVM[1] | V8[2] |
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| --------------------------|---------------------------|--------------------|
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| `v128.load` | `-msimd128` | :heavy_check_mark: |
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| `v128.store` | `-msimd128` | :heavy_check_mark: |
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| `v128.const` | `-munimplemented-simd128` | |
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| `i8x16.splat` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.extract_lane_s` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.extract_lane_u` | `-munimplemented-simd128` | |
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| `i8x16.replace_lane` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.splat` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.extract_lane_s` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.extract_lane_u` | `-munimplemented-simd128` | |
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| `i16x8.replace_lane` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.splat` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.extract_lane` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.replace_lane` | `-msimd128` | :heavy_check_mark: |
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| `i64x2.splat` | `-munimplemented-simd128` | |
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| `i64x2.extract_lane` | `-munimplemented-simd128` | |
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| `i64x2.replace_lane` | `-munimplemented-simd128` | |
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| `f32x4.splat` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.extract_lane` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.replace_lane` | `-msimd128` | :heavy_check_mark: |
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| `f64x2.splat` | `-munimplemented-simd128` | |
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| `f64x2.extract_lane` | `-munimplemented-simd128` | |
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| `f64x2.replace_lane` | `-munimplemented-simd128` | |
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| `i8x16.eq` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.ne` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.lt_s` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.lt_u` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.gt_s` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.gt_u` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.le_s` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.le_u` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.ge_s` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.ge_u` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.eq` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.ne` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.lt_s` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.lt_u` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.gt_s` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.gt_u` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.le_s` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.le_u` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.ge_s` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.ge_u` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.eq` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.ne` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.lt_s` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.lt_u` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.gt_s` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.gt_u` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.le_s` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.le_u` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.ge_s` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.ge_u` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.eq` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.ne` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.lt` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.gt` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.le` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.ge` | `-msimd128` | :heavy_check_mark: |
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| `f64x2.eq` | `-munimplemented-simd128` | |
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| `f64x2.ne` | `-munimplemented-simd128` | |
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| `f64x2.lt` | `-munimplemented-simd128` | |
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| `f64x2.gt` | `-munimplemented-simd128` | |
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| `f64x2.le` | `-munimplemented-simd128` | |
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| `f64x2.ge` | `-munimplemented-simd128` | |
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| `v128.not` | `-msimd128` | :heavy_check_mark: |
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| `v128.and` | `-msimd128` | :heavy_check_mark: |
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| `v128.or` | `-msimd128` | :heavy_check_mark: |
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| `v128.xor` | `-msimd128` | :heavy_check_mark: |
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| `v128.bitselect` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.neg` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.any_true` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.all_true` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.shl` | `-munimplemented-simd128` | |
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| `i8x16.shr_s` | `-munimplemented-simd128` | |
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| `i8x16.shr_u` | `-munimplemented-simd128` | |
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| `i8x16.add` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.add_saturate_s` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.add_saturate_u` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.sub` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.sub_saturate_s` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.sub_saturate_u` | `-msimd128` | :heavy_check_mark: |
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| `i8x16.mul` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.neg` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.any_true` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.all_true` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.shl` | `-munimplemented-simd128` | |
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| `i16x8.shr_s` | `-munimplemented-simd128` | |
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| `i16x8.shr_u` | `-munimplemented-simd128` | |
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| `i16x8.add` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.add_saturate_s` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.add_saturate_u` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.sub` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.sub_saturate_s` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.sub_saturate_u` | `-msimd128` | :heavy_check_mark: |
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| `i16x8.mul` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.neg` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.any_true` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.all_true` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.shl` | `-munimplemented-simd128` | |
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| `i32x4.shr_s` | `-munimplemented-simd128` | |
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| `i32x4.shr_u` | `-munimplemented-simd128` | |
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| `i32x4.add` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.sub` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.mul` | `-msimd128` | :heavy_check_mark: |
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| `i64x2.neg` | `-munimplemented-simd128` | |
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| `i64x2.any_true` | `-munimplemented-simd128` | |
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| `i64x2.all_true` | `-munimplemented-simd128` | |
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| `i64x2.shl` | `-munimplemented-simd128` | |
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| `i64x2.shr_s` | `-munimplemented-simd128` | |
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| `i64x2.shr_u` | `-munimplemented-simd128` | |
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| `i64x2.add` | `-munimplemented-simd128` | |
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| `i64x2.sub` | `-munimplemented-simd128` | |
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| `f32x4.abs` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.neg` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.sqrt` | `-munimplemented-simd128` | |
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| `f32x4.add` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.sub` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.mul` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.div` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.min` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.max` | `-msimd128` | :heavy_check_mark: |
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| `f64x2.abs` | `-munimplemented-simd128` | |
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| `f64x2.neg` | `-munimplemented-simd128` | |
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| `f64x2.sqrt` | `-munimplemented-simd128` | |
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| `f64x2.add` | `-munimplemented-simd128` | |
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| `f64x2.sub` | `-munimplemented-simd128` | |
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| `f64x2.mul` | `-munimplemented-simd128` | |
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| `f64x2.div` | `-munimplemented-simd128` | |
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| `f64x2.min` | `-munimplemented-simd128` | |
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| `f64x2.max` | `-munimplemented-simd128` | |
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| `i32x4.trunc_s/f32x4:sat` | `-msimd128` | :heavy_check_mark: |
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| `i32x4.trunc_u/f32x4:sat` | `-msimd128` | :heavy_check_mark: |
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| `i64x2.trunc_s/f64x2:sat` | `-munimplemented-simd128` | |
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| `i64x2.trunc_u/f64x2:sat` | `-munimplemented-simd128` | |
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| `f32x4.convert_s/i32x4` | `-msimd128` | :heavy_check_mark: |
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| `f32x4.convert_u/i32x4` | `-msimd128` | :heavy_check_mark: |
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| `f64x2.convert_s/i64x2` | `-munimplemented-simd128` | |
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| `f64x2.convert_u/i64x2` | `-munimplemented-simd128` | |
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| `v8x16.shuffle1` | | |
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| `v8x16.shuffle2_imm` | | |
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[1] Tip of tree LLVM as of April 24, 2019
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[2] Tested on V8 7.5.0 (candidate). Requires flag `--experimental-wasm-simd`

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