On Tue, Jan 08, 2013 at 05:49:28PM +0100, Jan Hubicka wrote:
> --- testsuite/gcc.c-torture/execute/pr55875.c (revision 0)
> +++ testsuite/gcc.c-torture/execute/pr55875.c (revision 0)
> @@ -0,0 +1,17 @@
Please add
/* PR tree-optimization/55875 */
here.
> +int a[250];
> +__attribute__ ((noinline))
> +t(int i)
> +{
> + if (i==0)
> + exit(0);
> + if (i>255)
> + abort ();
> +}
> +main()
> +{
> + unsigned int i;
> + for (i=0;;i++)
> + {
> + a[i]=t((unsigned char)(i+5));
> + }
> +}
> Index: testsuite/g++.dg/torture/pr55875.C
> ===================================================================
> --- testsuite/g++.dg/torture/pr55875.C (revision 0)
> +++ testsuite/g++.dg/torture/pr55875.C (revision 0)
And
// PR tree-optimization/55875
// { dg-do run }
here, dg-do compile is the default.
> @@ -0,0 +1,53 @@
> +struct A
> +{
> + short int a1;
> + unsigned char a2;
> + unsigned int a3;
> +};
> +
> +struct B
> +{
> + unsigned short b1;
> + const A *b2;
> +};
> +
> +B b;
> +
> +__attribute__((noinline, noclone))
> +int foo (unsigned x)
> +{
> + __asm volatile ("" : "+r" (x) : : "memory");
> + return x;
> +}
> +
> +inline void
> +bar (const int &)
> +{
> +}
> +
> +__attribute__((noinline)) void
> +baz ()
> +{
> + const A *a = b.b2;
> + unsigned int i;
> + unsigned short n = b.b1;
> + for (i = 0; i < n; ++i)
> + if (a[i].a1 == 11)
> + {
> + if (i > 0 && (a[i - 1].a2 & 1))
> + continue;
> + bar (foo (2));
> + return;
There should be tabs on the 4 above lines, just bugzilla ate it.
Jakub
