1 files changed, 56 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/const-1.c b/gcc/testsuite/gcc.dg/const-1.c
new file mode 100644
index 00000000000..40678c6431c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/const-1.c
@@ -0,0 +1,56 @@
+/* PR optimization/13472 */
+/* Origin: <p.van-hoof@qub.ac.uk> */
+
+/* Verify that the reload pass doesn't emit a store
+   to the .rodata section. */
+
+/* { dg-do run } */
+/* { dg-options "-O2 -pedantic -march=i686" { target i686-*-* } } */
+
+
+#define MAX2(a,b) (((a)>(b)) ? (a) : (b))
+
+const int q=0, p=0;
+
+typedef struct {
+	float a;
+	float b;
+} F;
+
+F **E, *D, C = { 2.f, 1.f };
+
+void G(float);
+void H(void);
+
+int main(void)
+{
+	D = &C;
+	E = &D;
+
+	H();
+        return 0;
+}
+
+void H(void)
+{
+	int i, l=1;
+	float b, o;
+
+	if( l )
+	{
+		b = 0.3f * MAX2(0.f,E[q][p].a - E[q][p].b);
+		o = E[q][p].a;
+		if( o > 1.e-36f )
+                        G(o);
+		E[q][p].a *= b;
+	}
+	else
+		b = 1.f;
+	for( i=q; i<2; ++i )
+		;
+}
+
+void G(float o)
+{
+}
+