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Date: Wed, 22 Apr 2015 12:17:00 -0000
From: Jan Hubicka <hubicka@ucw.cz>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: Jan Hubicka <hubicka@ucw.cz>, Richard Guenther <rguenther@suse.de>,	GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: Add DSE to early passes
Message-ID: <20150422121749.GB76372@kam.mff.cuni.cz>
References: <20150413100117.GA61490@kam.mff.cuni.cz> <CAMe9rOqmrsr_Wq=vAZtXC0Q_1JAVT5ofBz0=ENPSUDqFGL8fug@mail.gmail.com>
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> > @@ -42,6 +42,6 @@ bool f(I a, I b, I c, I d) {
> >  // This works only if everything is inlined into 'f'.
> >
> >  // { dg-final { scan-tree-dump-times ";; Function" 1 "fre2" } }
> > -// { dg-final { scan-tree-dump-times "free" 19 "fre2" } }
> > +// { dg-final { scan-tree-dump-times "free" 18 "fre2" } }
> >  // { dg-final { scan-tree-dump-times "unreachable" 11 "fre2" } }
> >  // { dg-final { cleanup-tree-dump "fre2" } }
> 
> I got
> 
> FAIL: g++.dg/tree-ssa/pr61034.C  -std=gnu++11  scan-tree-dump-times
> fre2 "free" 18
> FAIL: g++.dg/tree-ssa/pr61034.C  -std=gnu++14  scan-tree-dump-times
> fre2 "free" 18
> FAIL: g++.dg/tree-ssa/pr61034.C  -std=gnu++98  scan-tree-dump-times
> fre2 "free" 18
> 
> on Linux/x86.

Hmm, I tested on pcc64, but now I see the same failure on x86-64.
Perhaps this testcase became target sensitive?
Richard, does the count really matter?

Honza