1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr17319.c b/gcc/testsuite/gcc.dg/pr17319.c
new file mode 100644
index 00000000000..5d39e4c5707
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr17319.c
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fno-tree-dce" } */
+
+typedef unsigned long long HARD_REG_ELT_TYPE;
+typedef HARD_REG_ELT_TYPE HARD_REG_SET[2];
+static HARD_REG_SET newpat_used_regs;
+int try_combine (void)
+{
+ HARD_REG_ELT_TYPE *scan_tp_ = newpat_used_regs;
+ scan_tp_[0] = 0;
+ scan_tp_[1] = 0;
+}