[fpc-pascal] making FPC more code optimized

2012-04-29 Thread ik
Hello, Here is something that I'm asking without really know anything about the subject, so please bear with me. I'ved asked few places that works with Pascal (Delphi and FPC), why does they use C as the infrastructure, and they all say that there is not even one Pascal compiler that makes the

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Florian Klämpfl
Am 29.04.2012 11:40, schrieb ik: Hello, Here is something that I'm asking without really know anything about the subject, so please bear with me. I'ved asked few places that works with Pascal (Delphi and FPC), why does they use C as the infrastructure, and they all say that there is not

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Jonas Maebe
On 29 Apr 2012, at 12:22, Florian Klämpfl wrote: Spent more man power into optimizer development, though some optimizations are hard in pascal because we assume stricter aliasing rules and because we don't have a volatile keyword. At least as far as our current optimizers are concerned,

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Jorge Aldo G. de F. Junior
What would be usefull is to move the loads of code stored in sysutils/runtime into a dll/so. thats what makes C code look smaller, theres a nice libc (and others) there that groups mostly used functions into a single instance, while in pascal every executable replicates the very same code for

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Jonas Maebe
On 29 Apr 2012, at 14:23, Jorge Aldo G. de F. Junior wrote: What would be usefull is to move the loads of code stored in sysutils/runtime into a dll/so. That's mainly useful if the external API of the RTL will ever stabilize, which is certainly not the case today. Otherwise you create a

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Florian Klämpfl
Am 29.04.2012 14:23, schrieb Jorge Aldo G. de F. Junior: What would be usefull is to move the loads of code stored in sysutils/runtime into a dll/so. thats what makes C code look smaller, theres a nice libc (and others) there that groups mostly used functions into a single instance, while

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Mark Morgan Lloyd
Jonas Maebe wrote: On 29 Apr 2012, at 14:23, Jorge Aldo G. de F. Junior wrote: What would be usefull is to move the loads of code stored in sysutils/runtime into a dll/so. That's mainly useful if the external API of the RTL will ever stabilize, which is certainly not the case today.

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Jorge Aldo G. de F. Junior
If you deploy one executable, ok, but if you want to create a handfull of executables (following unix logic of many small programs) then you have a problem. EVERY executable will have the same code again again again, i think libraries have been created to address exactly this issue. about the

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Jonas Maebe
On 29 Apr 2012, at 15:13, Jorge Aldo G. de F. Junior wrote: If you deploy one executable, ok, but if you want to create a handfull of executables (following unix logic of many small programs) then you have a problem. You certainly do end up with larger executables. Whether or not this is a

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Florian Klämpfl
Am 29.04.2012 15:13, schrieb Jorge Aldo G. de F. Junior: If you deploy one executable, ok, but if you want to create a handfull of executables (following unix logic of many small programs) then you have a problem. Indeed, but I don't think this is the way FPC programs are typically used.

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Marco van de Voort
In our previous episode, Florian Kl?mpfl said: make sysutils/runtime etc an external loadable library and we are going to see FPC generate similar sized executables for similarly sized programs. It makes them look smaller but their footprint is actually larger so this is exactly what Ido

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Thomas Schatzl
Hi On Sun, 2012-04-29 at 15:50 +0200, Florian Klämpfl wrote: Am 29.04.2012 15:13, schrieb Jorge Aldo G. de F. Junior: If you deploy one executable, ok, but if you want to create a handfull of executables (following unix logic of many small programs) then you have a problem. Indeed, but I

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Florian Klämpfl
Am 29.04.2012 17:34, schrieb Thomas Schatzl: Hi On Sun, 2012-04-29 at 15:50 +0200, Florian Klämpfl wrote: Am 29.04.2012 15:13, schrieb Jorge Aldo G. de F. Junior: If you deploy one executable, ok, but if you want to create a handfull of executables (following unix logic of many small

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Thomas Schatzl
Hi, On Sun, 2012-04-29 at 17:38 +0200, Florian Klämpfl wrote: Am 29.04.2012 17:34, schrieb Thomas Schatzl: Hi florian@ubuntu32:~$ ldd ./test libfprtl-2.7.1.so = /home/florian/./fpc/svn/rtl/units/i386-linux/libfprtl-2.7, Actually, this output shows the bug already: for some

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Marco van de Voort
Interested people might want to have a look at http://bugs.freepascal.org/view.php?id=12492 there are iirc still unprocessed patches in that report. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org

Re: [fpc-pascal] making FPC more code optimized

2012-04-29 Thread Florian Klämpfl
Am 29.04.2012 17:50, schrieb Thomas Schatzl: Hi, On Sun, 2012-04-29 at 17:38 +0200, Florian Klämpfl wrote: Am 29.04.2012 17:34, schrieb Thomas Schatzl: Hi florian@ubuntu32:~$ ldd ./test libfprtl-2.7.1.so = /home/florian/./fpc/svn/rtl/units/i386-linux/libfprtl-2.7, Actually, this