> Of course, it is not practically doable, to have vector typecasts > preserve values (FLOAT_EXPR) on SSE and bits (VIEW_CONVERT_EXPR) on > Altivec. The availability of generic vector types, which were > overhauled in order to provide portable vector support even for machines > without SIMD hardware, makes it harder to even propose this...
Besides the fact SSE already depends on VCE :). Also in the SPU specs, the altivec style is optional but we still require the preserve bits form of the cast. In fact I thought this was documented this way. t is possible to cast from one vector type to another, provided they are of the same size (in fact, you can also cast vectors to and from other datatypes of the same size). -- Pinski
