It's 2016 and COMPILERS ARE STILL STUPID

Just analysing a device driver for hardware few months old... as usual, it's as bloated as a week-old dead pig overall but then I come across pieces like this:

shl ecx, 4
mov edx, ecx
shr ecx, 2
xor eax, eax
rep stosd
mov ecx, edx
and ecx, 3
rep stosb

:facepalm:

>>96
I'm guessing it was something like

x = *((short*)p)++;
y = *p++;

since the code before that is (there are some other intervening unrelated instructions too, signified by ...):

mov ax, [ebp+0]
...
mov bl, [ebp+2]
...
add ebp, 2
...
inc ebp

Not sure of compiler. Might be MSVC