[Bug tree-optimization/49452] [4.7 regression] comp-goto-2.c regresses in testing

["ramana.r at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49452

--- Comment #22 from Ramana Radhakrishnan <ramana.r at gmail dot com> 2011-09-14 20:26:43 UTC ---
On 14 Sep 2011, at 07:48, "ebotcazou at gcc dot gnu.org"
<gcc-bugzilla@gcc.gnu.org> wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49452
> 
> --- Comment #21 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-09-14 06:48:01 UTC ---
>> All callee saved registers should never changed after function call. Here fp
>> has been changed is not because it is after a function call, it is because it
>> is after the target of non local goto. I'm not familiar with the implementation
>> of non local goto, but I guess there is some convention/protocol defines which
>> registers may be changed after the target of a non local goto.
> 
> That's not the problem.  The problem is that the blockage isn't honored.


By ?
> 
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