[patch] LTO support for Mach-O (apple-darwin)

[Jack Howarth]

On Fri, May 14, 2010 at 09:25:48AM -0400, Diego Novillo wrote:
> OK folks.  I'm now even *more* confused.  Is the patch ready for review or not?
> 
> 
> Diego.

Diego,
   The operative patch for review should be...

http://gcc.gnu.org/ml/gcc-patches/2010-05/msg01051.html

which was originally proposed by Steven in...

http://gcc.gnu.org/ml/gcc-patches/2010-05/msg00577.html

I have verified that the gcc/config/darwin.c changes
produce no regressions on x86_64-apple-darwin10...

http://gcc.gnu.org/ml/gcc-testresults/2010-05/msg01025.html

and Dominique Dhumieres has verified that it brings powerpc-apple-darwin's
lto testsuite performance on par with i386-apple-darwin.

http://gcc.gnu.org/ml/gcc-testresults/2010-05/msg00939.html

          Jack
ps Both i386-apple-darwin* and powerpc-apple-darwin* has unrelated
issues with lto apparently optimizing away symbols. Applying the
requested patch, http://gcc.gnu.org/ml/gcc-patches/2010-05/msg01051.html,
will expand the universe of testers for these remaining lto issues
by adding powerpc darwin to i386 darwin as supported lto targets.