Thanks Kevin. It is now working for me. Cheers. kevin diggs-2 wrote: > > Hi, > > This might make 2! > > On Wed, Apr 6, 2011 at 10:59 PM, vikramsp <vikram2rhyme@xxxxxxxxx> wrote: >> >> Hello there. I was exploring about peephole and peephole2 optimisation >> passes of gcc c compiler. when compiling a test.c programme like this - >> >> ~$ gcc test.c -fpeephole2 -da >> >> there was no dump for peephole2 pass. same is for -fpeephole. >> Does it mean that peephole passes are not done or is there any >> other way to do so. >> Please help me >> > > You have to have one of the -O options (I doubt that -O0 counts) to > have optimizations done. It won't help to just have your favorite -f: > > gcc -c -O2 -fpeephole -da test.c > > If you use -v you might see if -fpeephole is already included in one > of the -Ox where x is one of 1, 2, or 3. > > Thanks. > > kevin > >> Best Regards >> vikramsp >> -- >> View this message in context: >> http://old.nabble.com/gcc-peephole-problem-tp31339261p31339261.html > > -- View this message in context: http://old.nabble.com/gcc-peephole-problem-tp31339261p31340486.html Sent from the gcc - Help mailing list archive at Nabble.com.
