[Bug rtl-optimization/48389] [4.5/4.6/4.7 Regression] ICE: in make_edges, at cfgbuild.c:319 with -mtune=pentiumpro

[law at redhat dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48389

--- Comment #8 from Jeffrey A. Law <law at redhat dot com> 2011-04-07 18:41:14 UTC ---
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On 04/07/11 09:38, matz at gcc dot gnu.org wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48389
> 
> Michael Matz <matz at gcc dot gnu.org> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |matz at gcc dot gnu.org
> 
> --- Comment #7 from Michael Matz <matz at gcc dot gnu.org> 2011-04-07 15:38:38 UTC ---
> Hmpf, what doesn't work with just moving the rebuild_jump_labels call?
> The testcase works, but I haven't tried the testsuite.  Because it should
> theoretically work.  The insertion of barrier inside BBs is fixed up in
> cfgexpand at some places, we possibly merely need to extend them.  See
> maybe_cleanup_end_of_block.
You won't even get an x86 bootstrap due to complaints in the verifiers.
 I agree, it should theoretically work :-)  In practice it doesn't.

jeff

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