re PR target/26515 (peephole2 causes unrecognized insn, zero_extending non-general register)

	PR target/26515
	* gcc.dg/torture/pr26515.c: New test.

From-SVN: r152677

gcc/testsuite/ChangeLog

+2009-10-12  Hans-Peter Nilsson  <hp@axis.com>
+
+	PR target/26515
+	* gcc.dg/torture/pr26515.c: New test.
+
 2009-10-12  Janis Johnson  <janis187@us.ibm.com>
 
 	PR testsuite/41659

gcc/testsuite/gcc.dg/torture/pr26515.c

+/* { dg-options "-march=v10" { target cris*-*-* } } */
+struct i
+{
+  long long i_size;
+  struct a *i_mapping;
+};
+struct p
+{
+  struct a *mapping;
+  long index;
+};
+extern void b (struct p*, unsigned);
+extern void u (struct p*);
+void
+block_page_mkwrite (struct i *i, struct p *p)
+{
+  unsigned end = 0;
+  long long size = 0;
+  size = i->i_size;
+  if ((p->mapping != i->i_mapping))
+    goto out_unlock;
+  if (((p->index + 1) << 13) > size)
+    end = size & ~(~(((1UL) << 13) - 1));
+  b (p, end);
+out_unlock:
+  u (p);
+}