Patch to support PowerPC 4xx dlmzb instruction

[Joseph S. Myers]

On Tue, 14 Mar 2006, Andrew Pinski wrote:

> On Mar 13, 2006, at 7:30 PM, Joseph S. Myers wrote:
> > 2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>
> > 
> > 	* gcc.target/powerpc/405-dlmzb-strlen-1.c,
> > 	gcc.target/powerpc/440-dlmzb-strlen-1.c: New tests.
> 
> 
> Hmm, these tests fail on powerpc-darwin with the following error:
> FAIL: gcc.target/powerpc/405-dlmzb-strlen-1.c (test for excess errors)
> Excess errors:
> /Users/regress/tbox/svn-gcc/gcc/testsuite/gcc.target/powerpc/405-dlmzb-strlen-1.c:17:
> error: missing barrier after block 5
> /Users/regress/tbox/svn-gcc/gcc/testsuite/gcc.target/powerpc/405-dlmzb-strlen-1.c:17:
> internal compiler error: verify_flow_info failed

They worked on powerpc-linux in testing based on revision 111858; either 
some recent change has broken them or there's a Darwin/Linux difference 
here.

-- 
Joseph S. Myers               http://www.srcf.ucam.org/~jsm28/gcc/
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