Implement SSE _mm_set* intrinsics (#100)
Implement SSE _mm_set* intrinsics (#100)

* Add _mm_set_ss

* Add _mm_set1_ps and _mm_set_ps1

* Add _mm_set_ps

* Add _mm_setr_ps

* Add _mm_setzero_ps

* Fix _mm_setr_ps instr test on x86

* Sidestep black_box ABI issue on i586

rust-lang/stdarch,rust-lang/stdarch,rust-lang/stdarch,rust-lang/stdarch,rust-lang/stdarch