Check in LLVM r95781.
diff --git a/test/CodeGen/pointer-arithmetic.c b/test/CodeGen/pointer-arithmetic.c
new file mode 100644
index 0000000..33465e0
--- /dev/null
+++ b/test/CodeGen/pointer-arithmetic.c
@@ -0,0 +1,22 @@
+// RUN: %clang_cc1 -S %s -o -
+
+typedef int Int;
+
+int f0(int *a, Int *b) { return a - b; }
+
+int f1(const char *a, char *b) { return b - a; }
+
+// GNU extensions
+typedef void (*FP)(void);
+void *f2(void *a, int b) { return a + b; }
+void *f2_1(void *a, int b) { return (a += b); }
+void *f3(int a, void *b) { return a + b; }
+void *f3_1(int a, void *b) { return (a += b); }
+void *f4(void *a, int b) { return a - b; }
+void *f4_1(void *a, int b) { return (a -= b); }
+FP f5(FP a, int b) { return a + b; }
+FP f5_1(FP a, int b) { return (a += b); }
+FP f6(int a, FP b) { return a + b; }
+FP f6_1(int a, FP b) { return (a += b); }
+FP f7(FP a, int b) { return a - b; }
+FP f7_1(FP a, int b) { return (a -= b); }