9 registers, 22 instructions:
0	r0 = uniform32 ptr0 0
1	r1 = uniform32 ptr0 C
2	r0 = trunc r0
3	r2 = splat 1 (1.4012985e-45)
4	r3 = splat 2 (2.8025969e-45)
5	r4 = splat 3 (4.2038954e-45)
loop:
6	    r5 = index
7	    r5 = trunc r5
8	    r5 = mul_i32 r1 r5
9	    r5 = add_i32 r0 r5
10	    r5 = shl_i32 r5 2
11	    r6 = gather32 ptr0 4 r5
12	    r7 = add_i32 r5 r2
13	    r7 = gather32 ptr0 4 r7
14	    r8 = add_i32 r5 r3
15	    r8 = gather32 ptr0 4 r8
16	    r5 = add_i32 r5 r4
17	    r5 = gather32 ptr0 4 r5
18	    store32 ptr1 r6
19	    store32 ptr2 r7
20	    store32 ptr3 r8
21	    store32 ptr4 r5