x265 HEVC Encoder

[nevcairiel]

Originally Posted by FranceBB

Still, in an ideal world, compilers would be able to produce optimized assembly code as fast as manually-written intrinsics, so there's no need to manually write them.

Unfortunately, that's still an utopia.

And it will always remain nothing but a dream. A compiler does not have enough information about the restrictions and requirements of the algorithm to perform the same sort of optimization a developer can do when manually writing ASM - especially with advanced SIMD.

PS:
Anyone that runs on a 32-bit system deserves what they get. Upgrade already, stop wasting developers and your own time. A simple change from 32-bit to 64-bit on the same hardware will yield a massive speedup already. And if you're encoding with x265 on hardware thats not even 64-bit compatible, then you should *really* upgrade.