c

The C language converts to ASM in a very straight forward way. It is ridiculous
to optimize subexprressions and similar stupid things when a competent C
programmer can do it by hand.

Don't make the compiler a clusterfuck because of retard-programmers.

The C language converts to ASM in a very straight forward way.

Where's the bit rotate operator? Where's the SIMD?

In order for C compilers to use something as simple as a bit rotate instruction, they have to reverse-engineer your code.

Bit scan is a single instruction on a lot of architectures, but C compilers make you write a loop and have code to turn that loop into a single instruction.

Some languages make your code simpler but need a more complicated compiler. Some languages have a simple compiler but make you write more complicated code.

C is total garbage. C makes the compiler and your code more complicated.