On 3 March 2015 at 03:32, <dcoffin@xxxxxxxxxxxxxxxxxx> wrote: > Hi Manuel, > > Here's the blend_highlights() function from dcraw.c > with just the includes, defines, and globals it needs to > compile. > > gcc -Wall -O4 -march=athlon64 foo.c > > gives two "array bounds" warnings, > > gcc -Wall -O4 -march=x86-64 foo.c > gcc -Wall -O4 foo.c > gcc -Wall -O3 foo.c > > give one warning, while "-O2" or less gives no warnings. > Unlike -Wunused-result and -Waggressive-loop-optimizations, > -Warray-bound is not enabled by default, only because I use > -Wall. Sorry, I cannot reproduce the warning with either gcc 4.8.2 or gcc 5.0 (r221118). In any case, it would be better to open a PR (https://gcc.gnu.org/bugs/) than to discuss it here. BTW, -Ox n >=3 is exactly equivalent to -O3. Cheers, Manuel.
