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From: Daniel Berlin <dberlin@dberlin.org> To: gcc-bugzilla@gcc.gnu.org Cc: gcc-bugs@gcc.gnu.org Subject: Re: [Bug tree-optimization/26608] New: address of local variables are said to escape even though it is obvious they don't Date: Wed, 08 Mar 2006 19:44:00 -0000 [thread overview] Message-ID: <1141847035.8501.17.camel@linux.site> (raw) In-Reply-To: <bug-26608-6528@http.gcc.gnu.org/bugzilla/> On Wed, 2006-03-08 at 18:59 +0000, pinskia at gcc dot gnu dot org wrote: > Testcase: > int *d1; > int g(int *b) > { > d1 = b; > } > int f(int a, int b, int c) > { > int i, j; > int *d; > if (a) > d = &i; > else > d = &j; > i = 2; > j = 3; > g(&b); > if (i!=2) > link_error(); > if (j!=3) > link_error(); > return *d; > } > int main(void) > { > f(1, 2,3); > return 0; > } > > This should link with optimize but right now i and j are said to be call > clobbered for some reason. What does the dump say. My guess is that it believes that they are returned from the call, even though they are not. > >
next prev parent reply other threads:[~2006-03-08 19:44 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2006-03-08 18:59 pinskia at gcc dot gnu dot org 2006-03-08 19:44 ` [Bug tree-optimization/26608] " dberlin at dberlin dot org 2006-03-08 19:44 ` Daniel Berlin [this message] 2006-03-08 19:47 ` pinskia at gcc dot gnu dot org 2006-09-12 6:37 ` pinskia at gcc dot gnu dot org 2009-04-03 12:24 ` rguenth at gcc dot gnu dot org
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