From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001
From: "Zancanaro; Carlo" <czan8762@plang3.cs.usyd.edu.au>
Date: Mon, 24 Sep 2012 09:58:17 +1000
Subject: Add the clang library to the repo (with some of my changes, too).

---
 clang/test/Sema/expr-address-of.c | 120 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 clang/test/Sema/expr-address-of.c

(limited to 'clang/test/Sema/expr-address-of.c')

diff --git a/clang/test/Sema/expr-address-of.c b/clang/test/Sema/expr-address-of.c
new file mode 100644
index 0000000..2b8cfbf
--- /dev/null
+++ b/clang/test/Sema/expr-address-of.c
@@ -0,0 +1,120 @@
+// RUN: %clang_cc1 %s -verify -fsyntax-only
+struct xx { int bitf:1; };
+
+struct entry { struct xx *whatever; 
+               int value; 
+               int bitf:1; };
+void add_one(int *p) { (*p)++; }
+
+void test() {
+ register struct entry *p;
+ add_one(&p->value);
+ struct entry pvalue;
+ add_one(&p->bitf);  // expected-error {{address of bit-field requested}}
+ add_one(&pvalue.bitf); // expected-error {{address of bit-field requested}}
+ add_one(&p->whatever->bitf); // expected-error {{address of bit-field requested}}
+}
+
+void foo() {
+  register int x[10];
+  &x[10];              // expected-error {{address of register variable requested}}
+    
+  register int *y;
+  
+  int *x2 = &y; // expected-error {{address of register variable requested}}
+  int *x3 = &y[10];
+}
+
+void testVectorComponentAccess() {
+  typedef float v4sf __attribute__ ((vector_size (16)));
+  static v4sf q;
+  float* r = &q[0]; // expected-error {{address of vector element requested}}
+}
+
+typedef __attribute__(( ext_vector_type(4) ))  float float4;
+
+float *testExtVectorComponentAccess(float4 x) { 
+  return &x.w; // expected-error {{address of vector element requested}}
+}
+
+void f0() {
+  register int *x0;
+  int *_dummy0 = &(*x0);
+
+  register int *x1;
+  int *_dummy1 = &(*(x1 + 1));
+}
+
+// FIXME: The checks for this function are broken; we should error
+// on promoting a register array to a pointer! (C99 6.3.2.1p3)
+void f1() {
+  register int x0[10];
+  int *_dummy00 = x0; // fixme-error {{address of register variable requested}}
+  int *_dummy01 = &(*x0); // fixme-error {{address of register variable requested}}
+
+  register int x1[10];
+  int *_dummy1 = &(*(x1 + 1)); // fixme-error {{address of register variable requested}}
+
+  register int *x2;
+  int *_dummy2 = &(*(x2 + 1));
+
+  register int x3[10][10][10];
+  int (*_dummy3)[10] = &x3[0][0]; // expected-error {{address of register variable requested}}
+
+  register struct { int f0[10]; } x4;
+  int *_dummy4 = &x4.f0[2]; // expected-error {{address of register variable requested}}
+}
+
+void f2() {
+  register int *y;
+  
+  int *_dummy0 = &y; // expected-error {{address of register variable requested}}
+  int *_dummy1 = &y[10];
+}
+
+void f3() {
+  extern void f4();
+  void (*_dummy0)() = &****f4;
+}
+
+void f4() {
+  register _Complex int x;
+  
+  int *_dummy0 = &__real__ x; // expected-error {{address of register variable requested}}
+}
+
+void f5() {
+  register int arr[2];
+
+  /* This is just here because if we happened to support this as an
+     lvalue we would need to give a warning. Note that gcc warns about
+     this as a register before it warns about it as an invalid
+     lvalue. */
+  int *_dummy0 = &(int*) arr; // expected-error {{address expression must be an lvalue or a function designator}}
+  int *_dummy1 = &(arr + 1); // expected-error {{address expression must be an lvalue or a function designator}}
+}
+
+void f6(register int x) {
+  int * dummy0 = &x; // expected-error {{address of register variable requested}}
+}
+
+char* f7() {
+  register struct {char* x;} t1 = {"Hello"};
+  char* dummy1 = &(t1.x[0]);
+
+  struct {int a : 10;} t2;
+  int* dummy2 = &(t2.a); // expected-error {{address of bit-field requested}}
+
+  void* t3 = &(*(void*)0);
+}
+
+void f8() {
+  void *dummy0 = &f8(); // expected-error {{address expression must be an lvalue or a function designator}}
+
+  extern void v;
+  void *dummy1 = &(1 ? v : f8()); // expected-error {{address expression must be an lvalue or a function designator}}
+
+  void *dummy2 = &(f8(), v); // expected-error {{address expression must be an lvalue or a function designator}}
+
+  void *dummy3 = &({ ; }); // expected-error {{address expression must be an lvalue or a function designator}}
+}
-- 
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