missing optimization oppotunity?

[BaoshanPang]

https://godbolt.org/z/z96hPzr1b

'len2' is 4 bytes aligned, one 'sw' should be used instead of 4 'sb'.

[BaoshanPang]

oh, 'p' could be changed somewhere.

[shubhe25p]

Why was this closed? This seems interesting. The packed attribute forces compiler to assume 1-byte alignment as 4-byte alignment might cause a fault depending on the hardware. Did you try to replace the 4 sb's with a single 'sw' for any speedups? Curious to know how you found this out.