2010/6/21 Ian Lance Taylor <iant@xxxxxxxxxx>: > "ivanko.rus" <ivanko.rus@xxxxxxxxx> writes: > >> Hello everyone! I would like to know if it's possible to exclude "push >> %ebp"; push %edi; push %esi; push %ebx" from the beginning of a >> function. It's just that I need a possibility to control these things >> myself (in only one function, the rest can be normal). Thanks a lot in >> advance! > > You could try compiling that one function with -fcall-used-edi > -fcall-used-esi -fcall-used-ebx -fcall-used-ebp -fomit-frame-pointer. > > In general you may want to consider writing this function in > assembler. > > Ian > Thank you very much! Almost all the functions worked, except the -fcall-used-ebp. It says that ebp cannot be used that way. Actually, the option that was still causing "push %ebp" (with -fomit-frame-pointer) in the beginning was "-fce-follow-jumps", so I disabled it. Now everything is fine with -O2. Thank you very much again!
