1 files changed, 24 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/20070112-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/20070112-1.c
new file mode 100644
index 000000000..bd7833567
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/20070112-1.c
@@ -0,0 +1,24 @@
+/* We used to ICE on this testcase: the address of bad_spill_regs is
+   only taken in a phi node, which we missed and cleared its TREE_ADDRESSABLE
+   flag.  This gets revealed when the loop is completely unrolled, thus
+   exposing the addresses as ordinary statements.  */
+
+/* { dg-do compile } */
+/* { dg-options "-O1" } */
+
+
+typedef unsigned HARD_REG_SET[2];
+static HARD_REG_SET bad_spill_regs;
+
+void
+order_regs_for_reload ()
+{
+  register int i;
+
+  register unsigned *scan_tp_ = bad_spill_regs;
+
+  for (i = 0; i < 2; i++)
+    *scan_tp_++ = 0;
+
+  bad_spill_regs[0] |= 1;
+}