bench ClearSkyBox #2

```c
#include <string.h>
#include <algorithm>
#include <iterator>
#include <limits>

float sky_mins[2][6], sky_maxs[2][6];

__attribute__((noinline)) void ClearSkyBox1()
{
    std::fill( *sky_mins, (*sky_mins)+2*6, 9999 );
    std::fill( *sky_maxs, (*sky_maxs)+2*6, -9999 );
}

__attribute__((noinline)) void ClearSkyBox2()
{
    static const float mins[ 2 ][ 6 ] = {
        { 9999, 9999, 9999, 9999, 9999, 9999 },
        { 9999, 9999, 9999, 9999, 9999, 9999 }
    };

    static const float maxs[ 2 ][ 6 ] = {
        { -9999, -9999, -9999, -9999, -9999, -9999 },
        { -9999, -9999, -9999, -9999, -9999, -9999 }
    };

    memcpy( sky_mins, mins, sizeof( mins ) );
    memcpy( sky_maxs, maxs, sizeof( maxs ) );
}

int main()
{
    while ( true )
    {
        ClearSkyBox1();
        ClearSkyBox2();
    }
}
```

# gcc -O2

* ClearSkyBox1: 51.26%
* ClearSkyBox2: 43.13%

```asm
asm: /* ClearSkyBox1() */
Platform: X86 64 (Intel syntax)
0x55d41bc4b150: endbr64
0x55d41bc4b154: lea          rax, [rip + 0x2f25]
0x55d41bc4b15b: movss        xmm0, dword ptr [rip + 0xf2d]
0x55d41bc4b163: lea          rdx, [rax + 0x30]
0x55d41bc4b167: nop          word ptr [rax + rax]
0x55d41bc4b170: movss        dword ptr [rax], xmm0
0x55d41bc4b174: add          rax, 4
0x55d41bc4b178: cmp          rax, rdx
0x55d41bc4b17b: jne          0x55d41bc4b170
0x55d41bc4b17d: lea          rax, [rip + 0x2ebc]
0x55d41bc4b184: movss        xmm0, dword ptr [rip + 0xf08]
0x55d41bc4b18c: lea          rdx, [rax + 0x30]
0x55d41bc4b190: movss        dword ptr [rax], xmm0
0x55d41bc4b194: add          rax, 4
0x55d41bc4b198: cmp          rax, rdx
0x55d41bc4b19b: jne          0x55d41bc4b190
0x55d41bc4b19d: ret
0x55d41bc4b19e:
```

```asm
asm: /* ClearSkyBox2() */
Platform: X86 64 (Intel syntax)
0x55d41bc4b1a0: endbr64
0x55d41bc4b1a4: movdqa       xmm0, xmmword ptr [rip + 0xeb4]
0x55d41bc4b1ac: movdqa       xmm1, xmmword ptr [rip + 0xebc]
0x55d41bc4b1b4: movdqa       xmm2, xmmword ptr [rip + 0xec4]
0x55d41bc4b1bc: movdqa       xmm3, xmmword ptr [rip + 0xe5c]
0x55d41bc4b1c4: movdqa       xmm4, xmmword ptr [rip + 0xe64]
0x55d41bc4b1cc: movdqa       xmm5, xmmword ptr [rip + 0xe6c]
0x55d41bc4b1d4: movaps       xmmword ptr [rip + 0x2ea5], xmm0
0x55d41bc4b1db: movaps       xmmword ptr [rip + 0x2eae], xmm1
0x55d41bc4b1e2: movaps       xmmword ptr [rip + 0x2eb7], xmm2
0x55d41bc4b1e9: movaps       xmmword ptr [rip + 0x2e50], xmm3
0x55d41bc4b1f0: movaps       xmmword ptr [rip + 0x2e59], xmm4
0x55d41bc4b1f7: movaps       xmmword ptr [rip + 0x2e62], xmm5
0x55d41bc4b1fe: ret
0x55d41bc4b1ff:
```

# gcc -O3

* ClearSkyBox1: 68.17%
* ClearSkyBox2: 22.81%

```asm
asm: /* ClearSkyBox1() */
Platform: X86 64 (Intel syntax)
0x55b02e8b1150: endbr64
0x55b02e8b1154: movaps       xmm0, xmmword ptr [rip + 0xf35]
0x55b02e8b115b: movaps       xmmword ptr [rip + 0x2f1e], xmm0
0x55b02e8b1162: movaps       xmmword ptr [rip + 0x2f27], xmm0
0x55b02e8b1169: movaps       xmmword ptr [rip + 0x2f30], xmm0
0x55b02e8b1170: movaps       xmm0, xmmword ptr [rip + 0xf29]
0x55b02e8b1177: movaps       xmmword ptr [rip + 0x2ec2], xmm0
0x55b02e8b117e: movaps       xmmword ptr [rip + 0x2ecb], xmm0
0x55b02e8b1185: movaps       xmmword ptr [rip + 0x2ed4], xmm0
0x55b02e8b118c: ret
0x55b02e8b118d:
```

```asm
asm: /* ClearSkyBox2() */
Platform: X86 64 (Intel syntax)
0x55b02e8b1190: endbr64
0x55b02e8b1194: movdqa       xmm0, xmmword ptr [rip + 0xec4]
0x55b02e8b119c: movdqa       xmm1, xmmword ptr [rip + 0xecc]
0x55b02e8b11a4: movdqa       xmm2, xmmword ptr [rip + 0xed4]
0x55b02e8b11ac: movdqa       xmm3, xmmword ptr [rip + 0xe6c]
0x55b02e8b11b4: movdqa       xmm4, xmmword ptr [rip + 0xe74]
0x55b02e8b11bc: movdqa       xmm5, xmmword ptr [rip + 0xe7c]
0x55b02e8b11c4: movaps       xmmword ptr [rip + 0x2eb5], xmm0
0x55b02e8b11cb: movaps       xmmword ptr [rip + 0x2ebe], xmm1
0x55b02e8b11d2: movaps       xmmword ptr [rip + 0x2ec7], xmm2
0x55b02e8b11d9: movaps       xmmword ptr [rip + 0x2e60], xmm3
0x55b02e8b11e0: movaps       xmmword ptr [rip + 0x2e69], xmm4
0x55b02e8b11e7: movaps       xmmword ptr [rip + 0x2e72], xmm5
0x55b02e8b11ee: ret
0x55b02e8b11ef:
```