18 registers, 22 instructions:
20	r0 = uniform32 ptr0 4
31	r1 = uniform32 ptr0 8
42	r2 = uniform32 ptr0 C
53	r3 = splat 0 (0)
64	r4 = splat FFFFFFFF (nan)
75	r5 = neq_f32 r0 r3
86	r6 = splat 3F800000 (1)
97	r6 = bit_and r6 r2
108	r7 = to_f32 r1
119	r7 = select r5 r6 r7
1210	r3 = eq_i32 r1 r3
1311	r3 = bit_xor r4 r3
1412	r4 = splat 1 (1.4012985e-45)
1513	r2 = bit_and r4 r2
1614	r0 = trunc r0
1715	r0 = select r3 r2 r0
1816	r0 = to_f32 r0
1917	r0 = mul_f32 r7 r0
20loop:
2118	    store32 ptr1 r0
2219	    store32 ptr2 r0
2320	    store32 ptr3 r0
2421	    store32 ptr4 r0
25