Messages in this thread | | | Date | Thu, 27 May 1999 17:38:03 +0200 | From | Jakub Jelinek <> | Subject | Re: schedule() "spaghetti" in 2.3.2 .. |
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On Tue, May 25, 1999 at 05:47:16PM +0100, Alan Cox wrote: > > I've proposed to Linus a solution that IMVHO keep the code in schedule() > > a little bit cleaner. > > This is what I suggest : > > > > #define block_begin(f) begin_##f: > > #define block_end(f) goto ret_##f > > #define block_call(f) goto begin_##f; ret_##f: > > Why does replacing a goto with a macro that hides the fact its a goto > make stuff cleaner. You would be better off working out how to add some > kind of > > if __attribute((normally true)) .... > > to gcc
The syntax is already agreed upon, just the implementation is still missing in egcs AFAIK. E.g. glibc 2.1 is prepared for it already:
if (__builtin_expect (mode, normal) != normal) { }
Cheers, Jakub ___________________________________________________________________ Jakub Jelinek | jj@sunsite.mff.cuni.cz | http://sunsite.mff.cuni.cz Administrator of SunSITE Czech Republic, MFF, Charles University ___________________________________________________________________ UltraLinux | http://ultra.linux.cz/ | http://ultra.penguin.cz/ Linux version 2.3.3 on a sparc64 machine (1343.49 BogoMips) ___________________________________________________________________
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