The idea of inlining is to remove function prologues and epilogues. When you set -fno-inline, the functions do not get inlined and the prologues and epilogues account for the slight increase in size. Inlining can result in some code bloat when procedure cloning is done. Regards, Ryan Mansfield -----Original Message----- From: gcc-help-owner@xxxxxxxxxxx [mailto:gcc-help-owner@xxxxxxxxxxx] On Behalf Of Ilja Golshtein Sent: Friday, September 30, 2005 1:26 AM To: gcc-help@xxxxxxxxxxx Subject: -Os in conjunction with -fno-inline Hello! I've came across with a strange thing. After adding "-fno-inline" to g++ command line just after "-Os" size of binary was slightly increased. Two question. Why any difference exists? Why size increased not reduced? The code optimized indeed. I use gcc 3.2.2 from RH 9.0 distribution. No optimization related options besides mentioned above. Thanks. -- Best regards Ilja Golshtein
