GCC

2012-09-24 Thread Jerome Huck
from Mr Jerome Huck Good morning. I have been using the GCC suite on Windows, mainly in the various Fortran. 77, 2003,... Thanks for those tools ! The Little Google Nexus 7 seems a wonderfull tool. I would like to know if we can expect a version of GCC to run on Android for such the Nexus 7 ? Th

confusing "bug is not reproducible, so it is likely a hardware or OS problem" message

2012-09-24 Thread Basile Starynkevitch
Hello All, When a plugin calls fatal_error, the compilation naturally fails, but the last error message is misleading, it says (while getting a bug in the MELT plugin for example) cc1: fatal error: MELT plugin module compilation failed (512) in /home/basile/tmp for command make -s -f /usr/li

Proposed C++ optimization with big speed gains with big objects

2012-09-24 Thread _
Hi guys I wana discuss proposed optimization step(optional switch?) to c++ compiller that would make old and new code in some cases order of magnitude faster by just pure recompilation. ...After all those attempts to store anything via = without waste I think that compiller should do "placement n

Re: confusing "bug is not reproducible, so it is likely a hardware or OS problem" message

2012-09-24 Thread Richard Guenther
On Mon, Sep 24, 2012 at 1:01 PM, Basile Starynkevitch wrote: > Hello All, > > When a plugin calls fatal_error, the compilation naturally fails, > but the last error message is misleading, it says > (while getting a bug in the MELT plugin for example) > > > cc1: fatal error: MELT plugin module comp

bad reassociation with signed integer code after PR45232.

2012-09-24 Thread Dinar Temirbulatov
Hi, I noticed some minor regression with singed integer operations in "the proprietary" code since http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45232. Of course, I could use "-fwrapv" flag but my question is: why we could not add overflow checking in for example int_const_binop() at fold-const.c fo

Re: bad reassociation with signed integer code after PR45232.

2012-09-24 Thread Richard Guenther
On Mon, Sep 24, 2012 at 2:04 PM, Dinar Temirbulatov wrote: > Hi, > I noticed some minor regression with singed integer operations in "the > proprietary" code since > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45232. Of course, I could > use "-fwrapv" flag but my question is: why we could not add

Re: GCC

2012-09-24 Thread Robert Dewar
On 9/24/2012 6:53 AM, Jerome Huck wrote: from Mr Jerome Huck Good morning. I have been using the GCC suite on Windows, mainly in the various Fortran. 77, 2003,... Thanks for those tools ! The Little Google Nexus 7 seems a wonderfull tool. I would like to know if we can expect a version of GCC t

predicate for getting declaration tree node for SUBREG

2012-09-24 Thread srinivas dama
Hi, I see there is predicate REG_EXPR for getting declaration node for a REG rtx. It would be helpful If I get an equivalent predicate for a SUBREG rtx. I couldn't find such thing. My requirement is : I need find out if an operand is signed/unsigned from rtx.I am doing as below. rtx op0; tree

Re: predicate for getting declaration tree node for SUBREG

2012-09-24 Thread Richard Guenther
On Mon, Sep 24, 2012 at 3:01 PM, srinivas dama wrote: > Hi, > > I see there is predicate REG_EXPR for getting declaration node for a REG rtx. > It would be helpful If I get an equivalent predicate for a SUBREG rtx. > I couldn't find such thing. > > My requirement is : > > I need find out if an op

Re: Proposed C++ optimization with big speed gains with big objects

2012-09-24 Thread Mike Dupont
Hi, I think what you want is a custom allocator : http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt04ch11.html http://www.boost.org/doc/libs/1_45_0/doc/html/interprocess/allocators_containers.html http://stackoverflow.com/questions/2439536/strategy-to-allocate-free-lots-of-small-objects hope t