New optimisation idea ?

Reading point 3. of "Removal of duplicate effort at http://gcc.gnu.org/wiki/Speedup%20areas, I got the following idea : First of all, I don't think that it is actually done by gcc. If I'm wrong or if this idea doesn't worse the effort, just forget about it. +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+= Man

Memory usage reduction in loop.c ?

memory usage reduction) neither the impact in performance. If anyone interested, I can try it and do a bootstrap but I don't have the tools to perform benchmark (memory usage or speed of the compiler) Christophe Jaillet

Memory leak in bt-load.c ?

Hi, in file 'bt-load.c', in function 'augment_live_range', some memory is xmalloc'ed. It seems to be possible to never free it, if all the first tests are true. Yhe memory is only freed once at the end of the function. CJ =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+

config.cache question

I apologize if this question has already been answered but I would like to know if there is a way to reuse the same config.cache file for all the builds of all the subdirectories of a bootstrap ? In my case, it would speed up a lot the whole process. CJ

Re: config.cache question

...and in cygwin boxes when you forget to remove the anti virus :) By the way, thanks for you and Ben Elliston for the answers. CJ "Nix" <[EMAIL PROTECTED]> a écrit dans le message de news:[EMAIL PROTECTED] > On 13 Jan 2006, Ben Elliston uttered the following: > >> I apologize if this question

bool or bitfield ?

code...) Is there a prefered version ? Do you think that looking deeper into would be interesting and would impove gcc ? Is there an *easy* way to compare memory consuption and execution time to figure out which version should be prefered ? Christophe Jaillet

Question about PI

Maybe this is not an issue but in the files 'emit-rtl.c' and 'config/i386.c', PI is represented as a string : | v 3.1415926535897932384626433832795028841971693993751058209749445923078 ('emit-rtl.c') 3.1415926535897932385128089594061862044 ('config/i386.c')

Re: Memory layout of complex data types on the RTL level

In fact, the url of the project seams to be http://rtlcheck.sourceforge.net/ CJ "Moritz Muehlenhoff" <[EMAIL PROTECTED]> a écrit dans le message de news:[EMAIL PROTECTED] > Hi, > I'm working on a research project that performs static source code vulnerability > analysis on the RTL layer. (http://

[Q] initialisation of variable allocated wirh alloca in 'loop.c'

e used. I think that some may not be initialized properly. Christophe Jaillet

[bug 19832] - would s.o. help, if I try to develop this enhancement ?

agree to mentor it ? Christophe Jaillet

Re: svn trunk reaches nearly 1 GiB!!! That massive!!!

"J.C. Pizarro" <[EMAIL PROTECTED]> a écrit dans le message de news:[EMAIL PROTECTED] > $ svn -q co svn://gcc.gnu.org/svn/gcc/trunk gcc > $ du -s . > 1044451 . > $ > > It's 1'069'517'824 characters made from keyboards and generators!!! > > That massive!!! And slower checkout after several minutes!!!