[AVX-512] Consider folding vector compare results `a | b | c | d` into `~(!a & !b & !c & !d)`

[Zig Godbolt](https://zig.godbo.lt/#z:OYLghAFBqd5QCxAYwPYBMCmBRdBLAF1QCcAaPECAMzwBtMA7AQwFtMQByARg9KtQYEAysib0QXAGx8BBAKoBnTAAUAHpwAMvAFYTStJg1AAvPMFJL6yAngGVG6AMKpaAVxYM9DgDJ4GmADl3ACNMYhAAZgAmUgAHVAVCWwZnNw89eMSbAV9/IJZQ8OiLTCtshiECJmICVPdPLhKy5MrqglzAkLDImIUqmrr0xr62jvzCnoBKC1RXYmR2DjQGPoBqPvRVgFIIgBFVgAE8FniaiC2oqI2LqMmdgCEtjQBBJ%2BfMVVOCVaoGH9RUOcXqsQasmCBDgA1TDWEgQSQAFlIq1cAA5pm9QatghCDtDYcR4UiUejSJjQchcfiiITEci0RjgaD0FSYTSifTSeSQewoWy4XSSXcXpMUYjtgB2R5MkEAN2qq3CfIJHOxANoop2%2BwOCliBgIEAIxFcmDuEWlzyxxG2UUkWrBqzAYHtwQe3MVNrtewdTvtyDdMo9Fy9%2ByYjud3vQActoOtwftYd93sw0atmAIcz%2BAD8DkwFBBXIKDsFCI48wbiJMzRathLdm83h8vj8/sFqkCYyDwcr2YKGWTAziewLif33ZTh7TR1zAyzJ6qx4HeXj%2BVPOcLnqLCwjJRasfLrUqVyrBcF1ZrvTq9UwDVQxEpq%2B64xLHAntnsXanY5LX96w1q/S/EFn1/UN33rSMgKDF83wA5MoOIdNM0OPMCyLEtanLCBK0fF5a3rF4OGmWhOAAVl4TwOC0UhUE4AAtMx1lmeZMBtCIeFIAhNCI6YAGsQARUiADoEVRDQImiKJSMuLgNAlUj9E4BFeBYCQNA0UhKOo2iOF4BQQA0riqKI0g4FgJA0BOOgwnIShLNiazwmMI1XAYXi%2BDoAgwn0iAcWM0gS2YYgAE9OA4wLqmCgB5YJtDZMLeEsthBCihhaFC/ysGCVxgDLWhaH07heCwFhDGAcRMrwRDrDwWVMEK6iPhhVwvIS8hBFKbj9DwYJiEi5wsC6o1jjauriDPJRdkwUqjFoPxQGM6YqAMYAFEhPBMAAdyi2JGDa/hBBEMR2CiDSDvkJQ1C63QYgMIwQFMcw5uCfTIGmVBYnKQqAFootWAAlUpMDzTAADFy1Wb7%2BmAdNVlUVFJAAfURb65oYVxVEhlhkFiVwtWMBgxtIyH%2BBYQhvqoPq2G%2B%2BI/C84heFQMbiDwLBXogaZLDZZJ7AYJwXHqLw%2BbGLpwkaTIkgEQYGjiBJJYYEWCm6YYgZqgRWgGAWhiabn1f6do/E6JWxYsfXpb0EYakViYuE55iFgkYiyIorqdNWR7VhctzVggXBCBINjbd4IytCrUgEGBrBwg50h%2BNIhEhNIrgAE5JEkCUJQRDPUWTqTFI4ZTSFU2SNK0xnOD0gzOO4sOSI4KIVLU0vXYr6vFumMbEjsBEgA)
[LLVM Godbolt](https://llvm.godbo.lt/#z:OYLghAFBqd5QCxAYwPYBMCmBRdBLAF1QCcAaPECAMzwBtMA7AQwFtMQByARg9KtQYEAysib0QXACx8BBAKoBnTAAUAHpwAMvAFYTStJg1C1aANxakl9ZATwDKjdAGFUtAK4sGexwBk8DTAA5DwAjTGIQACYAdlIAB1QFQjsGF3dPPQSk2wE/AOCWMIiYy0xrHIYhAiZiAjSPLy5S8pSqmoI8oNDwqNiFatr6jKb%2B9s6Cot6ASktUN2Jkdg4sGgCAanQFVAB9WlRRWjW8ADZJNYABflQIAFIAZidTtdUjgA577DWbyIBWDVIvg8ni88O87p9vj8moDHmcQWCIb9IgD7rDnm8Pl9fncUUC4RjwVifpIpms9gdtm4GMw2Ohtkx0OhiF9ogAhG4aACC2EExAAniAOZy1kSfoCACJHZAsOJrdao4EExF/FG/LhCkWQ44SqUyuWYGGK0GYyH/ImRDVE6I6wzoQ34vDqwmQn6qn7HS2Q146vDS2XyvHo43O35myF3T2/ACcNoYdoVDqdytiRPeXM1ao0Pr9%2BvtQYRRLDv0kkahXFj8cDIKTRKjbq4GlLXEiOpChFE/Tz1ZNavLRCOpybdx1qhIA7OkObAIAtOr02tiJgCOOiVwI1ybtFxUKhSt/AbNjtyWIV%2BcQjVblWlYXcWj4T2obejQXIciu9fw0%2BHS/i6Tj7RKWpVhMDpBkmRZdkuR5Ah%2BUFecXWzPVMAAR3fYNlSLKFS21e5JV9JDUITfMH0wi14N%2Ba1cLWMciO7EMfldIkPXIn5vSo/DZRQtCfxVIl12FWsdRoq9HQfFMvSbLN2JzLjaI/UM3RLFiuHLKjhLvI4a0hOtV0bZSWyotsCA7Zc5NE%2BiVLWfsTiUgTF2XGzVzIzlN23LkOBmWhOB%2BXgvA4LRSFQTgfB8AA1ABZNYAEkACU1i2eZFixO4eFIAhNA8mYAGsQEkaIADoow0KNomJPKipK4l9E4SRfIywLOF4BQQH%2BdL/I80g4FgJA0BlOhwnISherifqIhMGxiCpLK%2BDoAhwmaiAQnqttmFg7heBWmo%2BQAeRCbRMBsThUt6thBG2hhaAFdrSCwEI3GAJwxFoZr1puzAWEMYBxGu/BFxsPBTEwF6AswVQDrcOajt4fw5q867aDwEJiC2lwsHqmC8BYKHSEB4gQkSTBxXez6EaMDKZioAxgAUUK8EwAB3ba4kYbH%2BEEEQxHYKQZEERQVHUa7dCaAwyZMcx9ER5rIBmVA4gqF7p224dpxYZA4jcXCAC8GFxnzAtx4g8CwKWIBmKwDoqBw4yGRpSF8fcJh6JosmSAQbcyRJXYYcZugiEYygt1oBjqVwGj0c3/oENpah9woncsYP3ZGYPY8mLgzbmBYuc87y6uuoKODJWhkDWCAYKm0kIFwQgaMiFKpl4NqtCmbKQB%2BSJ8uKjRIkkBjIi7nvjmqjhatILGG3%2BPyAoLpqWrS8mc44SI8%2Bnxr5/alucfmlJcqAA)

```llvm
define dso_local i64 @bar(<64 x i8> %0, <64 x i8> %1, <64 x i8> %2, <64 x i8> %3, <64 x i8> %4) local_unnamed_addr {
Entry:
%5 = icmp eq <64 x i8> %0, %1
%6 = icmp eq <64 x i8> %0, %2
%7 = or <64 x i1> %5, %6
%8 = icmp eq <64 x i8> %0, %3
%9 = or <64 x i1> %7, %8
%10 = icmp eq <64 x i8> %0, %4
%11 = or <64 x i1> %9, %10
%12 = bitcast <64 x i1> %11 to i64
ret i64 %12
}
```

Compiles to:

```asm
vpcmpeqb k0, zmm0, zmm1
vpcmpeqb k1, zmm0, zmm2
vpcmpeqb k2, zmm0, zmm4
korq k0, k0, k1
vpcmpeqb k1, zmm0, zmm3
korq k1, k1, k2
korq k0, k0, k1
kmovq rax, k0
```

I think it could be:

```asm
vpcmpneqb k1, zmm0, zmm1
vpcmpneqb k1 {k1}, zmm0, zmm2
vpcmpneqb k1 {k1}, zmm0, zmm3
vpcmpneqb k0 {k1}, zmm0, zmm4
knotq k0, k0
kmovq rax, k0
```