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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20070905-1.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20070905-1.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20070905-1.c
new file mode 100644
index 000000000..5953275b1
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20070905-1.c
@@ -0,0 +1,34 @@
+/* PR tree-optimization/32772 */
+
+struct S
+{
+ unsigned long bits[1];
+};
+
+void f1 (int, unsigned long *);
+int f2 (void);
+int f3 (int, unsigned long *);
+int f4 (int, unsigned long *);
+
+static inline __attribute__ ((always_inline))
+void baz (int x, volatile struct S *y)
+{
+ f1 (x, y->bits);
+}
+
+static int
+bar (int x, struct S *y)
+{
+ int n;
+ if (__builtin_constant_p (x) ? f3 (x, y->bits) : f4 (x, y->bits))
+ baz (x, y);
+ for (n = f2 (); n < 8; n = f2 ())
+ f3 (n, y->bits);
+}
+
+void
+foo (int x, int y)
+{
+ struct S m;
+ while ((y = bar (x, &m)) >= 0);
+}