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Re: [PATCH] Testcase for PR61801


On Mon, Jul 28, 2014 at 10:44:15AM +0200, Jakub Jelinek wrote:
> On Mon, Jul 28, 2014 at 09:50:24AM +0200, Richard Biener wrote:
> > --- gcc/testsuite/gcc.target/i386/pr61801.c	(revision 0)
> > +++ gcc/testsuite/gcc.target/i386/pr61801.c	(working copy)
> > @@ -0,0 +1,22 @@
> > +/* { dg-do compile } */
> > +/* { dg-options "-Os -fcompare-debug" } */
> > +
> > +int a, b, c;
> > +void fn1 ()
> > +{
> > +  int d;
> > +  if (fn2 () && !0)
> > +    {
> > +      b = (
> > +	   {
> > +	   int e;
> > +	   fn3 ();
> > +	   switch (0)
> > +	   default:
> > +	   asm volatile("" : "=a"(e) : "0"(a), ""(0));
> 
> How do we reload ""(0)?  I'm surprised that we accept it...

Seems we fail with -fcompare-debug before the fix even with
"i"(0), so my strong preference would be to use that.

	Jakub


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