Messages in this thread | | | Date | Thu, 5 Jan 2006 09:30:48 -0500 | From | Jakub Jelinek <> | Subject | Re: [patch 00/2] improve .text size on gcc 4.0 and newer compilers |
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On Thu, Jan 05, 2006 at 01:19:12PM +0100, Arjan van de Ven wrote: > obvious candidates for __rare are > * pm suspend/resume functions > * error handling functions > * initialization stuff (including mount time stuff for filesystems, > and hardware setup for drivers) > > I wonder if gcc can be convinced to put all unlikely() code sections > into a .text.rare as well, that'd be really cool.
gcc 4.1 calls them .text.unlikely and you need to use -freorder-blocks-and-partition switch. But I haven't been able to reproduce it on a short testcase I cooked up, so maybe it is broken ATM (it put the whole function into .text rather than the expected part into .text.unlikely and left empty .text.unlikely).
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