342b1b2753
I'm staring at this assembly, vmovups (%rsi), %ymm3 vpsrld $24, %ymm3, %ymm4 vpslld $16, %ymm4, %ymm15 vorps %ymm4, %ymm15, %ymm4 vpsubw %ymm4, %ymm0, %ymm4 Just knowing that could be vmovups (%rsi), %ymm3 vpshufb 0x??(%rip), %ymm3, %ymm4 vpsubw %ymm4, %ymm0, %ymm4 That is, instead of shifting, shifting, and bit-oring to create the 0a0a scale factor from ymm3, we could just byte shuffle directly using some pre-baked control pattern (stored at the end of the program like other constants) pshufb lets you arbitrarily remix bytes from its argument and zero bytes, and NEON has a similar family of vtbl instructions, even including that same feature of injecting zeroes. I think I've got this working, and the speedup is great, from 0.19 to 0.16 ns/px for I32_SWAR, and from 0.43 to 0.38 ns/px for I32. Change-Id: Iab850275e826b4187f0efc9495a4b9eab4402c38 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/220871 Commit-Queue: Mike Klein <mtklein@google.com> Reviewed-by: Herb Derby <herb@google.com>
621 lines
13 KiB
Plaintext
621 lines
13 KiB
Plaintext
A8 over A8
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17 values:
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☠ v0 = splat 0 (0)
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v1 = load8 arg(0)
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⤴ v2 = splat 3B808081 (0.0039215689)
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v3 = to_f32 v1
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v4 = mul_f32 v2 v3
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v5 = load8 arg(1)
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v6 = to_f32 v5
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v7 = mul_f32 v2 v6
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⤴ v8 = splat 3F800000 (1)
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v9 = sub_f32 v8 v4
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☠ v10 = mul_f32 v0 v9
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v11 = mad_f32 v7 v9 v4
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⤴ v12 = splat 437F0000 (255)
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⤴ v13 = splat 3F000000 (0.5)
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v14 = mad_f32 v11 v12 v13
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v15 = to_i32 v14
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store8 arg(1) v15
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7 registers, 15 instructions:
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r0 = splat 3B808081 (0.0039215689)
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r1 = splat 3F800000 (1)
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r2 = splat 437F0000 (255)
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r3 = splat 3F000000 (0.5)
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loop:
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r4 = load8 arg(0)
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r4 = to_f32 r4
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r4 = mul_f32 r0 r4
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r5 = load8 arg(1)
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r5 = to_f32 r5
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r5 = mul_f32 r0 r5
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r6 = sub_f32 r1 r4
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r6 = mad_f32 r5 r6 r4
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r6 = mad_f32 r6 r2 r3
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r6 = to_i32 r6
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store8 arg(1) r6
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A8 over G8
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23 values:
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☠ v0 = splat 0 (0)
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v1 = load8 arg(0)
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⤴ v2 = splat 3B808081 (0.0039215689)
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v3 = to_f32 v1
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v4 = mul_f32 v2 v3
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v5 = load8 arg(1)
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v6 = to_f32 v5
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v7 = mul_f32 v2 v6
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⤴ v8 = splat 3F800000 (1)
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v9 = sub_f32 v8 v4
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v10 = mul_f32 v7 v9
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☠ v11 = mad_f32 v8 v9 v4
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⤴ v12 = splat 3E59B3D0 (0.21259999)
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⤴ v13 = splat 3F371759 (0.71520001)
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⤴ v14 = splat 3D93DD98 (0.0722)
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v15 = mul_f32 v10 v14
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v16 = mad_f32 v10 v13 v15
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v17 = mad_f32 v10 v12 v16
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⤴ v18 = splat 437F0000 (255)
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⤴ v19 = splat 3F000000 (0.5)
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v20 = mad_f32 v17 v18 v19
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v21 = to_i32 v20
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store8 arg(1) v21
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9 registers, 21 instructions:
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r0 = splat 3B808081 (0.0039215689)
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r1 = splat 3F800000 (1)
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r2 = splat 3E59B3D0 (0.21259999)
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r3 = splat 3F371759 (0.71520001)
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r4 = splat 3D93DD98 (0.0722)
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r5 = splat 437F0000 (255)
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r6 = splat 3F000000 (0.5)
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loop:
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r7 = load8 arg(0)
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r7 = to_f32 r7
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r7 = mul_f32 r0 r7
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r8 = load8 arg(1)
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r8 = to_f32 r8
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r8 = mul_f32 r0 r8
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r7 = sub_f32 r1 r7
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r7 = mul_f32 r8 r7
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r8 = mul_f32 r7 r4
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r8 = mad_f32 r7 r3 r8
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r8 = mad_f32 r7 r2 r8
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r8 = mad_f32 r8 r5 r6
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r8 = to_i32 r8
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store8 arg(1) r8
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A8 over RGBA_8888
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39 values:
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☠ v0 = splat 0 (0)
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v1 = load8 arg(0)
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⤴ v2 = splat 3B808081 (0.0039215689)
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v3 = to_f32 v1
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v4 = mul_f32 v2 v3
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v5 = load32 arg(1)
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⤴ v6 = splat FF (3.5733111e-43)
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v7 = extract v5 0 v6
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v8 = to_f32 v7
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v9 = mul_f32 v2 v8
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v10 = extract v5 8 v6
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v11 = to_f32 v10
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v12 = mul_f32 v2 v11
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v13 = extract v5 16 v6
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v14 = to_f32 v13
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v15 = mul_f32 v2 v14
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v16 = extract v5 24 v6
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v17 = to_f32 v16
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v18 = mul_f32 v2 v17
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⤴ v19 = splat 3F800000 (1)
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v20 = sub_f32 v19 v4
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v21 = mul_f32 v9 v20
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v22 = mul_f32 v12 v20
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v23 = mul_f32 v15 v20
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v24 = mad_f32 v18 v20 v4
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⤴ v25 = splat 437F0000 (255)
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⤴ v26 = splat 3F000000 (0.5)
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v27 = mad_f32 v21 v25 v26
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v28 = to_i32 v27
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v29 = mad_f32 v22 v25 v26
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v30 = to_i32 v29
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v31 = mad_f32 v23 v25 v26
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v32 = to_i32 v31
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v33 = mad_f32 v24 v25 v26
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v34 = to_i32 v33
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v35 = pack v28 v30 8
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v36 = pack v32 v34 8
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v37 = pack v35 v36 16
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store32 arg(1) v37
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11 registers, 38 instructions:
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r0 = splat 3B808081 (0.0039215689)
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r1 = splat FF (3.5733111e-43)
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r2 = splat 3F800000 (1)
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r3 = splat 437F0000 (255)
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r4 = splat 3F000000 (0.5)
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loop:
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r5 = load8 arg(0)
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r5 = to_f32 r5
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r5 = mul_f32 r0 r5
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r6 = load32 arg(1)
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r7 = extract r6 0 r1
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r7 = to_f32 r7
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r7 = mul_f32 r0 r7
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r8 = extract r6 8 r1
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r8 = to_f32 r8
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r8 = mul_f32 r0 r8
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r9 = extract r6 16 r1
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r9 = to_f32 r9
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r9 = mul_f32 r0 r9
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r6 = extract r6 24 r1
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r6 = to_f32 r6
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r6 = mul_f32 r0 r6
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r10 = sub_f32 r2 r5
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r7 = mul_f32 r7 r10
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r8 = mul_f32 r8 r10
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r9 = mul_f32 r9 r10
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r10 = mad_f32 r6 r10 r5
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r7 = mad_f32 r7 r3 r4
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r7 = to_i32 r7
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r8 = mad_f32 r8 r3 r4
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r8 = to_i32 r8
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r9 = mad_f32 r9 r3 r4
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r9 = to_i32 r9
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r10 = mad_f32 r10 r3 r4
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r10 = to_i32 r10
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r8 = pack r7 r8 8
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r10 = pack r9 r10 8
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r10 = pack r8 r10 16
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store32 arg(1) r10
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G8 over A8
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17 values:
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☠ v0 = load8 arg(0)
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⤴ v1 = splat 3B808081 (0.0039215689)
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☠ v2 = to_f32 v0
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☠ v3 = mul_f32 v1 v2
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⤴ v4 = splat 3F800000 (1)
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☠ v5 = splat 0 (0)
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v6 = load8 arg(1)
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v7 = to_f32 v6
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v8 = mul_f32 v1 v7
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⤴ v9 = sub_f32 v4 v4
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☠ v10 = mad_f32 v5 v9 v3
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v11 = mad_f32 v8 v9 v4
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⤴ v12 = splat 437F0000 (255)
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⤴ v13 = splat 3F000000 (0.5)
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v14 = mad_f32 v11 v12 v13
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v15 = to_i32 v14
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store8 arg(1) v15
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6 registers, 12 instructions:
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r0 = splat 3B808081 (0.0039215689)
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r1 = splat 3F800000 (1)
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r2 = sub_f32 r1 r1
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r3 = splat 437F0000 (255)
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r4 = splat 3F000000 (0.5)
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loop:
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r5 = load8 arg(1)
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r5 = to_f32 r5
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r5 = mul_f32 r0 r5
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r5 = mad_f32 r5 r2 r1
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r5 = mad_f32 r5 r3 r4
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r5 = to_i32 r5
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store8 arg(1) r5
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G8 over G8
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22 values:
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v0 = load8 arg(0)
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⤴ v1 = splat 3B808081 (0.0039215689)
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v2 = to_f32 v0
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v3 = mul_f32 v1 v2
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⤴ v4 = splat 3F800000 (1)
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v5 = load8 arg(1)
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v6 = to_f32 v5
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v7 = mul_f32 v1 v6
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⤴ v8 = sub_f32 v4 v4
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v9 = mad_f32 v7 v8 v3
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☠ v10 = mad_f32 v4 v8 v4
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⤴ v11 = splat 3E59B3D0 (0.21259999)
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⤴ v12 = splat 3F371759 (0.71520001)
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⤴ v13 = splat 3D93DD98 (0.0722)
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v14 = mul_f32 v9 v13
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v15 = mad_f32 v9 v12 v14
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v16 = mad_f32 v9 v11 v15
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⤴ v17 = splat 437F0000 (255)
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⤴ v18 = splat 3F000000 (0.5)
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v19 = mad_f32 v16 v17 v18
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v20 = to_i32 v19
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store8 arg(1) v20
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10 registers, 21 instructions:
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r0 = splat 3B808081 (0.0039215689)
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r1 = splat 3F800000 (1)
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r2 = sub_f32 r1 r1
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r3 = splat 3E59B3D0 (0.21259999)
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r4 = splat 3F371759 (0.71520001)
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r5 = splat 3D93DD98 (0.0722)
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r6 = splat 437F0000 (255)
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r7 = splat 3F000000 (0.5)
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loop:
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r8 = load8 arg(0)
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r8 = to_f32 r8
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r8 = mul_f32 r0 r8
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r9 = load8 arg(1)
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r9 = to_f32 r9
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r9 = mul_f32 r0 r9
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r9 = mad_f32 r9 r2 r8
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r8 = mul_f32 r9 r5
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r8 = mad_f32 r9 r4 r8
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r8 = mad_f32 r9 r3 r8
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r8 = mad_f32 r8 r6 r7
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r8 = to_i32 r8
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store8 arg(1) r8
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G8 over RGBA_8888
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38 values:
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v0 = load8 arg(0)
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⤴ v1 = splat 3B808081 (0.0039215689)
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v2 = to_f32 v0
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v3 = mul_f32 v1 v2
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⤴ v4 = splat 3F800000 (1)
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v5 = load32 arg(1)
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⤴ v6 = splat FF (3.5733111e-43)
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v7 = extract v5 0 v6
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v8 = to_f32 v7
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v9 = mul_f32 v1 v8
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v10 = extract v5 8 v6
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v11 = to_f32 v10
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v12 = mul_f32 v1 v11
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v13 = extract v5 16 v6
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v14 = to_f32 v13
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v15 = mul_f32 v1 v14
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v16 = extract v5 24 v6
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v17 = to_f32 v16
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v18 = mul_f32 v1 v17
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⤴ v19 = sub_f32 v4 v4
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v20 = mad_f32 v9 v19 v3
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v21 = mad_f32 v12 v19 v3
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v22 = mad_f32 v15 v19 v3
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v23 = mad_f32 v18 v19 v4
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⤴ v24 = splat 437F0000 (255)
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⤴ v25 = splat 3F000000 (0.5)
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v26 = mad_f32 v20 v24 v25
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v27 = to_i32 v26
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v28 = mad_f32 v21 v24 v25
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v29 = to_i32 v28
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v30 = mad_f32 v22 v24 v25
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v31 = to_i32 v30
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v32 = mad_f32 v23 v24 v25
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v33 = to_i32 v32
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v34 = pack v27 v29 8
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v35 = pack v31 v33 8
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v36 = pack v34 v35 16
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store32 arg(1) v36
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11 registers, 38 instructions:
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r0 = splat 3B808081 (0.0039215689)
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r1 = splat 3F800000 (1)
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r2 = splat FF (3.5733111e-43)
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r3 = sub_f32 r1 r1
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r4 = splat 437F0000 (255)
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r5 = splat 3F000000 (0.5)
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loop:
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r6 = load8 arg(0)
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r6 = to_f32 r6
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r6 = mul_f32 r0 r6
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r7 = load32 arg(1)
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r8 = extract r7 0 r2
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r8 = to_f32 r8
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r8 = mul_f32 r0 r8
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r9 = extract r7 8 r2
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r9 = to_f32 r9
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r9 = mul_f32 r0 r9
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r10 = extract r7 16 r2
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r10 = to_f32 r10
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r10 = mul_f32 r0 r10
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r7 = extract r7 24 r2
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r7 = to_f32 r7
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r7 = mul_f32 r0 r7
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r8 = mad_f32 r8 r3 r6
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r9 = mad_f32 r9 r3 r6
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r10 = mad_f32 r10 r3 r6
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r7 = mad_f32 r7 r3 r1
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r8 = mad_f32 r8 r4 r5
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r8 = to_i32 r8
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r9 = mad_f32 r9 r4 r5
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r9 = to_i32 r9
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r10 = mad_f32 r10 r4 r5
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r10 = to_i32 r10
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r7 = mad_f32 r7 r4 r5
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r7 = to_i32 r7
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r9 = pack r8 r9 8
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r7 = pack r10 r7 8
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r7 = pack r9 r7 16
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store32 arg(1) r7
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RGBA_8888 over A8
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30 values:
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v0 = load32 arg(0)
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⤴ v1 = splat FF (3.5733111e-43)
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☠ v2 = extract v0 0 v1
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⤴ v3 = splat 3B808081 (0.0039215689)
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☠ v4 = to_f32 v2
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☠ v5 = mul_f32 v3 v4
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☠ v6 = extract v0 8 v1
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☠ v7 = to_f32 v6
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☠ v8 = mul_f32 v3 v7
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☠ v9 = extract v0 16 v1
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☠ v10 = to_f32 v9
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☠ v11 = mul_f32 v3 v10
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v12 = extract v0 24 v1
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v13 = to_f32 v12
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v14 = mul_f32 v3 v13
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☠ v15 = splat 0 (0)
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v16 = load8 arg(1)
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v17 = to_f32 v16
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v18 = mul_f32 v3 v17
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⤴ v19 = splat 3F800000 (1)
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v20 = sub_f32 v19 v14
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☠ v21 = mad_f32 v15 v20 v5
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☠ v22 = mad_f32 v15 v20 v8
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☠ v23 = mad_f32 v15 v20 v11
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v24 = mad_f32 v18 v20 v14
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⤴ v25 = splat 437F0000 (255)
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⤴ v26 = splat 3F000000 (0.5)
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v27 = mad_f32 v24 v25 v26
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v28 = to_i32 v27
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store8 arg(1) v28
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8 registers, 17 instructions:
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r0 = splat FF (3.5733111e-43)
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r1 = splat 3B808081 (0.0039215689)
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r2 = splat 3F800000 (1)
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r3 = splat 437F0000 (255)
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r4 = splat 3F000000 (0.5)
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loop:
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r5 = load32 arg(0)
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r5 = extract r5 24 r0
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r5 = to_f32 r5
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r5 = mul_f32 r1 r5
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r6 = load8 arg(1)
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r6 = to_f32 r6
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r6 = mul_f32 r1 r6
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r7 = sub_f32 r2 r5
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r7 = mad_f32 r6 r7 r5
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r7 = mad_f32 r7 r3 r4
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r7 = to_i32 r7
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store8 arg(1) r7
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RGBA_8888 over G8
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35 values:
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v0 = load32 arg(0)
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⤴ v1 = splat FF (3.5733111e-43)
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v2 = extract v0 0 v1
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⤴ v3 = splat 3B808081 (0.0039215689)
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v4 = to_f32 v2
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v5 = mul_f32 v3 v4
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v6 = extract v0 8 v1
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v7 = to_f32 v6
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v8 = mul_f32 v3 v7
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v9 = extract v0 16 v1
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v10 = to_f32 v9
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v11 = mul_f32 v3 v10
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v12 = extract v0 24 v1
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v13 = to_f32 v12
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v14 = mul_f32 v3 v13
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v15 = load8 arg(1)
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v16 = to_f32 v15
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v17 = mul_f32 v3 v16
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⤴ v18 = splat 3F800000 (1)
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v19 = sub_f32 v18 v14
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v20 = mad_f32 v17 v19 v5
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v21 = mad_f32 v17 v19 v8
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v22 = mad_f32 v17 v19 v11
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☠ v23 = mad_f32 v18 v19 v14
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⤴ v24 = splat 3E59B3D0 (0.21259999)
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⤴ v25 = splat 3F371759 (0.71520001)
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|
⤴ v26 = splat 3D93DD98 (0.0722)
|
|
v27 = mul_f32 v22 v26
|
|
v28 = mad_f32 v21 v25 v27
|
|
v29 = mad_f32 v20 v24 v28
|
|
⤴ v30 = splat 437F0000 (255)
|
|
⤴ v31 = splat 3F000000 (0.5)
|
|
v32 = mad_f32 v29 v30 v31
|
|
v33 = to_i32 v32
|
|
store8 arg(1) v33
|
|
|
|
13 registers, 34 instructions:
|
|
r0 = splat FF (3.5733111e-43)
|
|
r1 = splat 3B808081 (0.0039215689)
|
|
r2 = splat 3F800000 (1)
|
|
r3 = splat 3E59B3D0 (0.21259999)
|
|
r4 = splat 3F371759 (0.71520001)
|
|
r5 = splat 3D93DD98 (0.0722)
|
|
r6 = splat 437F0000 (255)
|
|
r7 = splat 3F000000 (0.5)
|
|
loop:
|
|
r8 = load32 arg(0)
|
|
r9 = extract r8 0 r0
|
|
r9 = to_f32 r9
|
|
r9 = mul_f32 r1 r9
|
|
r10 = extract r8 8 r0
|
|
r10 = to_f32 r10
|
|
r10 = mul_f32 r1 r10
|
|
r11 = extract r8 16 r0
|
|
r11 = to_f32 r11
|
|
r11 = mul_f32 r1 r11
|
|
r8 = extract r8 24 r0
|
|
r8 = to_f32 r8
|
|
r8 = mul_f32 r1 r8
|
|
r12 = load8 arg(1)
|
|
r12 = to_f32 r12
|
|
r12 = mul_f32 r1 r12
|
|
r8 = sub_f32 r2 r8
|
|
r9 = mad_f32 r12 r8 r9
|
|
r10 = mad_f32 r12 r8 r10
|
|
r8 = mad_f32 r12 r8 r11
|
|
r8 = mul_f32 r8 r5
|
|
r8 = mad_f32 r10 r4 r8
|
|
r8 = mad_f32 r9 r3 r8
|
|
r8 = mad_f32 r8 r6 r7
|
|
r8 = to_i32 r8
|
|
store8 arg(1) r8
|
|
|
|
RGBA_8888 over RGBA_8888
|
|
48 values:
|
|
v0 = load32 arg(0)
|
|
⤴ v1 = splat FF (3.5733111e-43)
|
|
v2 = extract v0 0 v1
|
|
⤴ v3 = splat 3B808081 (0.0039215689)
|
|
v4 = to_f32 v2
|
|
v5 = mul_f32 v3 v4
|
|
v6 = extract v0 8 v1
|
|
v7 = to_f32 v6
|
|
v8 = mul_f32 v3 v7
|
|
v9 = extract v0 16 v1
|
|
v10 = to_f32 v9
|
|
v11 = mul_f32 v3 v10
|
|
v12 = extract v0 24 v1
|
|
v13 = to_f32 v12
|
|
v14 = mul_f32 v3 v13
|
|
v15 = load32 arg(1)
|
|
v16 = extract v15 0 v1
|
|
v17 = to_f32 v16
|
|
v18 = mul_f32 v3 v17
|
|
v19 = extract v15 8 v1
|
|
v20 = to_f32 v19
|
|
v21 = mul_f32 v3 v20
|
|
v22 = extract v15 16 v1
|
|
v23 = to_f32 v22
|
|
v24 = mul_f32 v3 v23
|
|
v25 = extract v15 24 v1
|
|
v26 = to_f32 v25
|
|
v27 = mul_f32 v3 v26
|
|
⤴ v28 = splat 3F800000 (1)
|
|
v29 = sub_f32 v28 v14
|
|
v30 = mad_f32 v18 v29 v5
|
|
v31 = mad_f32 v21 v29 v8
|
|
v32 = mad_f32 v24 v29 v11
|
|
v33 = mad_f32 v27 v29 v14
|
|
⤴ v34 = splat 437F0000 (255)
|
|
⤴ v35 = splat 3F000000 (0.5)
|
|
v36 = mad_f32 v30 v34 v35
|
|
v37 = to_i32 v36
|
|
v38 = mad_f32 v31 v34 v35
|
|
v39 = to_i32 v38
|
|
v40 = mad_f32 v32 v34 v35
|
|
v41 = to_i32 v40
|
|
v42 = mad_f32 v33 v34 v35
|
|
v43 = to_i32 v42
|
|
v44 = pack v37 v39 8
|
|
v45 = pack v41 v43 8
|
|
v46 = pack v44 v45 16
|
|
store32 arg(1) v46
|
|
|
|
14 registers, 48 instructions:
|
|
r0 = splat FF (3.5733111e-43)
|
|
r1 = splat 3B808081 (0.0039215689)
|
|
r2 = splat 3F800000 (1)
|
|
r3 = splat 437F0000 (255)
|
|
r4 = splat 3F000000 (0.5)
|
|
loop:
|
|
r5 = load32 arg(0)
|
|
r6 = extract r5 0 r0
|
|
r6 = to_f32 r6
|
|
r6 = mul_f32 r1 r6
|
|
r7 = extract r5 8 r0
|
|
r7 = to_f32 r7
|
|
r7 = mul_f32 r1 r7
|
|
r8 = extract r5 16 r0
|
|
r8 = to_f32 r8
|
|
r8 = mul_f32 r1 r8
|
|
r5 = extract r5 24 r0
|
|
r5 = to_f32 r5
|
|
r5 = mul_f32 r1 r5
|
|
r9 = load32 arg(1)
|
|
r10 = extract r9 0 r0
|
|
r10 = to_f32 r10
|
|
r10 = mul_f32 r1 r10
|
|
r11 = extract r9 8 r0
|
|
r11 = to_f32 r11
|
|
r11 = mul_f32 r1 r11
|
|
r12 = extract r9 16 r0
|
|
r12 = to_f32 r12
|
|
r12 = mul_f32 r1 r12
|
|
r9 = extract r9 24 r0
|
|
r9 = to_f32 r9
|
|
r9 = mul_f32 r1 r9
|
|
r13 = sub_f32 r2 r5
|
|
r10 = mad_f32 r10 r13 r6
|
|
r11 = mad_f32 r11 r13 r7
|
|
r12 = mad_f32 r12 r13 r8
|
|
r13 = mad_f32 r9 r13 r5
|
|
r10 = mad_f32 r10 r3 r4
|
|
r10 = to_i32 r10
|
|
r11 = mad_f32 r11 r3 r4
|
|
r11 = to_i32 r11
|
|
r12 = mad_f32 r12 r3 r4
|
|
r12 = to_i32 r12
|
|
r13 = mad_f32 r13 r3 r4
|
|
r13 = to_i32 r13
|
|
r11 = pack r10 r11 8
|
|
r13 = pack r12 r13 8
|
|
r13 = pack r11 r13 16
|
|
store32 arg(1) r13
|
|
|
|
I32 8888 over 8888
|
|
11 registers, 29 instructions:
|
|
r0 = splat FF (3.5733111e-43)
|
|
r1 = splat 100 (3.5873241e-43)
|
|
loop:
|
|
r2 = load32 arg(0)
|
|
r3 = bit_and r2 r0
|
|
r4 = bytes r2 2
|
|
r5 = bytes r2 3
|
|
r2 = shr r2 24
|
|
r6 = load32 arg(1)
|
|
r7 = bit_and r6 r0
|
|
r8 = bytes r6 2
|
|
r9 = bytes r6 3
|
|
r6 = shr r6 24
|
|
r10 = sub_i32 r1 r2
|
|
r7 = mul_i16x2 r7 r10
|
|
r7 = shr r7 8
|
|
r7 = add_i32 r3 r7
|
|
r8 = mul_i16x2 r8 r10
|
|
r8 = shr r8 8
|
|
r8 = add_i32 r4 r8
|
|
r9 = mul_i16x2 r9 r10
|
|
r9 = shr r9 8
|
|
r9 = add_i32 r5 r9
|
|
r10 = mul_i16x2 r6 r10
|
|
r10 = shr r10 8
|
|
r10 = add_i32 r2 r10
|
|
r8 = pack r7 r8 8
|
|
r10 = pack r9 r10 8
|
|
r10 = pack r8 r10 16
|
|
store32 arg(1) r10
|
|
|
|
I32 (SWAR) 8888 over 8888
|
|
7 registers, 16 instructions:
|
|
r0 = splat 1000100 (2.3510604e-38)
|
|
r1 = splat FF00FF (2.3418409e-38)
|
|
r2 = splat FF00FF00 (-1.7146522e+38)
|
|
loop:
|
|
r3 = load32 arg(0)
|
|
r4 = bytes r3 404
|
|
r4 = sub_i16x2 r0 r4
|
|
r5 = load32 arg(1)
|
|
r6 = bit_and r5 r1
|
|
r5 = shr_i16x2 r5 8
|
|
r6 = mul_i16x2 r6 r4
|
|
r6 = shr_i16x2 r6 8
|
|
r5 = mul_i16x2 r5 r4
|
|
r5 = bit_and r5 r2
|
|
r5 = bit_or r6 r5
|
|
r5 = add_i32 r3 r5
|
|
store32 arg(1) r5
|
|
|