__restrict, architecture intrinsics vs asm, consoles, and other

[a]

> which compiles to a single shufps instruction.

Doesn't it often require additional needless  movaps instructions?
For example, the following: 

  asm
  {
    movaps XMM0, a;
    movaps XMM1, b;
    addps  XMM0, XMM1;
    movaps a, XMM0;
  }
  asm
  {
    movaps XMM0, a;
    movaps XMM1, b;
    addps  XMM0, XMM1;
    movaps a, XMM0;
  }

compiles to

movaps -0x48(%rsp),%xmm0
movaps -0x38(%rsp),%xmm1
addps    %xmm1,%xmm0
movaps %xmm0,-0x48(%rsp)
movaps -0x48(%rsp),%xmm0
movaps -0x38(%rsp),%xmm1
addps    %xmm1,%xmm0
movaps %xmm0,-0x48(%rsp)

Is it possible to avoid needlless loading and storing of values when calling multiple functions that use asm blocks? It also seems that the compiler doesn't inline functions containing asm.