当混合SSE整数/浮点SIMD指令时，是否会导致性能损失

I've used x86 SIMD instructions (SSE1234) in the form of intrinsics quite a lot lately. What I found frustrating is that the SSE ISA has several simple instructions that are available only for floats or only for integers, but in theory should perform equally for both. For example, both float and double vectors have instructions to load higher 64bits of a 128-bit vector from an address (I've used x86 SIMD instructions (SSE1234) in th