15 registers, 43 instructions:
0	r0 = uniform32 ptr0 0
1	r1 = uniform32 ptr0 C
2	r2 = uniform32 ptr0 18
3	r0 = trunc r0
4	r1 = mul_i32 r1 r0
5	r3 = splat 1 (1.4012985e-45)
6	r4 = splat 2 (2.8025969e-45)
7	r5 = splat 3 (4.2038954e-45)
8	r0 = mul_i32 r2 r0
9	r2 = splat 3F800000 (1)
loop:
10	    r6 = index
11	    r6 = trunc r6
12	    r7 = add_i32 r6 r1
13	    r7 = shl_i32 r7 2
14	    r8 = gather32 ptr0 4 r7
15	    r9 = add_i32 r7 r3
16	    r9 = gather32 ptr0 4 r9
17	    r10 = add_i32 r7 r4
18	    r10 = gather32 ptr0 4 r10
19	    r7 = add_i32 r7 r5
20	    r7 = gather32 ptr0 4 r7
21	    r6 = add_i32 r6 r0
22	    r6 = shl_i32 r6 2
23	    r11 = gather32 ptr0 10 r6
24	    r12 = add_i32 r6 r3
25	    r12 = gather32 ptr0 10 r12
26	    r13 = add_i32 r6 r4
27	    r13 = gather32 ptr0 10 r13
28	    r6 = add_i32 r6 r5
29	    r6 = gather32 ptr0 10 r6
30	    r14 = sub_f32 r2 r7
31	    r11 = mul_f32 r11 r14
32	    r11 = add_f32 r8 r11
33	    r12 = mul_f32 r12 r14
34	    r12 = add_f32 r9 r12
35	    r13 = mul_f32 r13 r14
36	    r13 = add_f32 r10 r13
37	    r14 = mul_f32 r6 r14
38	    r14 = add_f32 r7 r14
39	    store32 ptr1 r11
40	    store32 ptr2 r12
41	    store32 ptr3 r13
42	    store32 ptr4 r14