Re: Mass rebuild for F13?

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On Mon, Dec 21, 2009 at 06:17:26AM -0500, Neal Becker wrote:
> > On Mon, Dec 21, 2009 at 05:19:20AM -0500, Andre Robatino wrote:
> >> Is there expected to be a mass rebuild for F13 - for example, to include
> >> GCC 4.5 (which will probably be released the first half of 2010, judging
> >> by past release dates)?
> > 
> > I do not intend to jump to GCC 4.5 for F13, that would mean I and others
> > would have to spend almost all our time on that already by now, while
> > there is still a lot of work on GCC 4.4 bugfixing.
> > GCC 4.4-RH contains several GCC 4.5 new features backported, so I think we
> > can leave GCC 4.5 as a new feature to F14.
> 
> How could I learn what 4.5 features are backported?

>From gcc %changelog?

To list some of them:

- VTA
- -gdwarf-3, -gstrict-dwarf support, defaults to -gdwarf-3
- various other debuginfo related backports
- epilogue unwinding support
- __builtin_unreachable () support
- asm goto support
- power7 support
- SSE5 support removal, AMD Orochi support added (-mfma4, -mxop, -mlwp)
- -freorder-blocks-and-partitions unwind fixes
- STB_GNU_UNIQUE support
- C++ typeinfo comparison changes
- C++ constructor and destructor code size optimizations (aliasing
  identical base/complete cdtors together when no virtual bases,
  wrapper version of deleting dtor)
- -D_FORTIFY_SOURCE={1,2} changes
- some small Fortran speed optimization backports
- -mcrc32 support on ix86/x86_64
- more accurate ix86/x86_64 insn length info, ix86/x86_64 machine reorg improvements
- -march=atom/-mtune=atom support
- -masm=intel mode fixes
- raw string support, u/U/u8 string literal support
- assorted bugfixes

	Jakub

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