From 8d4059f9b38736efaa413f876e8666e82e7d3940 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <iant@golang.org>
Date: Sat, 11 Sep 2010 22:51:05 -0700
Subject: [PATCH] test: Make gccgo believe that the variables can change.

This test is supposed to test runtime behaviour.  However,
gccgo is smart enough to see that the variables are local to
the package and that they never change.  Add a function so
that gccgo thinks that the variables can in fact vary, so that
the test works at runtime as expected.

R=rsc
CC=golang-dev
https://golang.org/cl/2178041
---
 test/zerodivide.go | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/test/zerodivide.go b/test/zerodivide.go
index 224797fcd9d..5fe1eb00d38 100644
--- a/test/zerodivide.go
+++ b/test/zerodivide.go
@@ -46,6 +46,30 @@ var (
 	c128, d128, e128 complex128 = 0+0i, 0+0i, 1+1i
 )
 
+// Fool gccgo into thinking that these variables can change.
+func NotCalled() {
+	i++; j++; k++
+	i8++; j8++; k8++
+	i16++; j16++; k16++
+	i32++; j32++; k32++
+	i64++; j64++; k64++
+
+	u++; v++; w++
+	u8++; v8++; w8++
+	u16++; v16++; w16++
+	u32++; v32++; w32++
+	u64++; v64++; w64++
+	up++; vp++; wp++
+
+	f += 1; g += 1; h += 1
+	f32 += 1; g32 += 1; h32 += 1
+	f64 += 1; g64 += 1; h64 += 1
+
+	c += 1+1i; d += 1+1i; e += 1+1i
+	c64 += 1+1i; d64 += 1+1i; e64 += 1+1i
+	c128 += 1+1i; d128 += 1+1i; e128 += 1+1i
+}
+
 var tmp interface{}
 
 // We could assign to _ but the compiler optimizes it too easily.