Bug 1069956: SIMD x86-x64 backend: implement SimdConvertFrom; r=sunfish
Bug 1069956: SIMD: Add support for int32x4.fromFloat32x4 and float32x4.fromInt32x4 in Odin; r=luke
Bug 1069956: SIMD x86-x64 backend: implement SimdReinterpretCast; r=sunfish
Bug 1069956: SIMD: Add support for int32x4.fromFloat32x4Bits and float32x4.fromInt32x4Bits in Odin; r=luke