• Compiler optimisation
    Hello, 1.when i use printf with no var_args then the compiler should call puts instead of printf. ex1: #include <REGX51.H> #include <stdio.h> void main(void) { printf("This must call puts...
  • Not understanding the optimisation of the compiler
    We are evaluation Keil uVision V4.10 and ARMCC V4.1.0.481. Our first test run didn't go so well. With no optimisation, everything worked OK. Using optimisation 1 or above, the test failed. ...
  • compiler optimisation bug
    There is compiler optimisation (O2) which you may want to be aware of. A while back (Oct 2010) I found a compiler optimisation bug with optimisation level 2 (O2) in MDK V4.12 (Armcc V4.1.0.481)....
  • Weird optimisation compiler bug?
    Hi there, Included below is a sample disassembly output of some code I just discovered not behaving the way I think it should. Basically, it seems the compiler has determined that there is no need...
  • Optimising with NEON
    Note: This was originally posted on 11th February 2010 at http://forums.arm.com Hello guys, I am a bit new with ARM and NEON and was wondering if anyone could help me with advice on how to optimise a...