1 files changed, 47 insertions, 0 deletions
diff --git a/clang/test/PCH/variables.c b/clang/test/PCH/variables.c
new file mode 100644
index 0000000..9f90b37
--- /dev/null
+++ b/clang/test/PCH/variables.c
@@ -0,0 +1,47 @@
+// Test this without pch.
+// RUN: %clang_cc1 -include %s -fsyntax-only -verify %s
+
+// Test with pch.
+// RUN: %clang_cc1 -emit-pch -o %t %s
+// RUN: %clang_cc1 -include-pch %t -fsyntax-only -verify %s 
+
+#ifndef HEADER
+#define HEADER
+
+extern float y;
+extern int *ip, x;
+
+float z; // expected-note{{previous}}
+
+int z2 = 17; // expected-note{{previous}}
+
+#define MAKE_HAPPY(X) X##Happy
+int MAKE_HAPPY(Very); // expected-note{{previous definition is here}}
+
+#define A_MACRO_IN_THE_PCH 492
+#define FUNCLIKE_MACRO(X, Y) X ## Y
+
+#define PASTE2(x,y) x##y
+#define PASTE1(x,y) PASTE2(x,y)
+#define UNIQUE(x) PASTE1(x,__COUNTER__)
+
+int UNIQUE(a);  // a0
+int UNIQUE(a);  // a1
+
+#else
+
+int *ip2 = &x;
+float *fp = &ip; // expected-warning{{incompatible pointer types}}
+double z; // expected-error{{redefinition}}
+int z2 = 18; // expected-error{{redefinition}}
+double VeryHappy; // expected-error{{redefinition}}
+
+int Q = A_MACRO_IN_THE_PCH;
+
+int R = FUNCLIKE_MACRO(A_MACRO_, IN_THE_PCH);
+
+
+int UNIQUE(a);  // a2
+int *Arr[] = { &a0, &a1, &a2 };
+
+#endif