[Bug tree-optimization/26304] [4.2 Regression] 25_algorithms/prev_permutation/1.cc on powerpc{64,}-linux and powerpc-darwin

[law at redhat dot com]

------- Comment #8 from law at redhat dot com  2006-02-15 23:34 -------
Subject: Re:  [4.2 Regression]
        25_algorithms/prev_permutation/1.cc on powerpc{64,}-linux and
powerpc-darwin

On Wed, 2006-02-15 at 15:19 +0000, pinskia at gcc dot gnu dot org wrote:
> 
> ------- Comment #3 from pinskia at gcc dot gnu dot org  2006-02-15 15:18 -------
> -O2 -fno-tree-vrp cures the wrong code which either means VRP is messing up or
> some other pass is messing up after VRP.  Though I should note:
> -  ivtmp.209 = ivtmp.209 - 1;
> +  ivtmp.211 = ivtmp.211 - 1;
>    ivtmp.214 = ivtmp.214 + 4B;
> -  goto <bb 11> (<L22>);
> +  if (ivtmp.211 != 4294967295) goto <L9>; else goto <L13>;
> 
> Which looks more like VRP messing up.
Can you check something for me.  Is sizetype an unsigned type on 
this platform?  And what type is ivtmp?




jeff


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26304