Re: [PHP-DEV] --enable-debug and GCC 4.8 / -Og

2013-07-08 Thread Christopher Jones 



On 07/07/2013 07:55 AM, Sebastian Bergmann wrote:

On 07/07/2013 04:31 PM, Sebastian Bergmann wrote:

Currently --enable-debug sets -O0. I think it would make sense to
use -Og instead when GCC = 4.8.0 is used.


  https://gist.github.com/sebastianbergmann/5943708 is an attempt to
  implement this. Only tested this on Fedora 19.



Seems reasonable.

Your test logic needs fixing.  It should be like: if ((major  4) || (major == 4  
minor = 8))

Chris

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Re: [PHP-DEV] --enable-debug and GCC 4.8 / -Og

2013-07-08 Thread Sebastian Bergmann 
On 07/08/2013 06:54 PM, Christopher Jones wrote:
 Your test logic needs fixing.  It should be like: if ((major  4) ||
 (major == 4  minor = 8))

 Thank you, Chris, for pointing this out. I have updated the gist.

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Re: [PHP-DEV] --enable-debug and GCC 4.8 / -Og

2013-07-08 Thread Rainer Jung 
On 07.07.2013 16:31, Sebastian Bergmann wrote:
  From the release notes of GCC 4.8:
 
A new general optimization level, -Og, has been introduced. It
addresses the need for fast compilation and a superior debugging
experience while providing a reasonable level of runtime performance.
Overall experience for development should be better than the default
optimization level -O0.
 
  Currently --enable-debug sets -O0. I think it would make sense to
  use -Og instead when GCC = 4.8.0 is used.
 
  What do you think?

There's a recent short discussion about -Og at

http://gcc.gnu.org/ml/gcc/2013-07/msg1.html

Regards,

Rainer


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[PHP-DEV] --enable-debug and GCC 4.8 / -Og

2013-07-07 Thread Sebastian Bergmann 
 From the release notes of GCC 4.8:

   A new general optimization level, -Og, has been introduced. It
   addresses the need for fast compilation and a superior debugging
   experience while providing a reasonable level of runtime performance.
   Overall experience for development should be better than the default
   optimization level -O0.

 Currently --enable-debug sets -O0. I think it would make sense to
 use -Og instead when GCC = 4.8.0 is used.

 What do you think?

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Re: [PHP-DEV] --enable-debug and GCC 4.8 / -Og

2013-07-07 Thread Sebastian Bergmann 
On 07/07/2013 04:31 PM, Sebastian Bergmann wrote:
 Currently --enable-debug sets -O0. I think it would make sense to
 use -Og instead when GCC = 4.8.0 is used.

 https://gist.github.com/sebastianbergmann/5943708 is an attempt to
 implement this. Only tested this on Fedora 19.

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