Add missing tests

Change r278483 was missing the tests

Differential Revision: https://reviews.llvm.org/D20561



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@278908 91177308-0d34-0410-b5e6-96231b3b80d8

test/Sema/address-packed-member-memops.c

@@ -0,0 +1,26 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+// expected-no-diagnostics
+
+struct B {
+  int x, y, z, w;
+} b;
+
+struct __attribute__((packed)) A {
+  struct B b;
+} a;
+
+typedef __typeof__(sizeof(int)) size_t;
+
+void *memcpy(void *dest, const void *src, size_t n);
+int memcmp(const void *s1, const void *s2, size_t n);
+void *memmove(void *dest, const void *src, size_t n);
+void *memset(void *s, int c, size_t n);
+
+int x;
+
+void foo(void) {
+  memcpy(&a.b, &b, sizeof(b));
+  memmove(&a.b, &b, sizeof(b));
+  memset(&a.b, 0, sizeof(b));
+  x = memcmp(&a.b, &b, sizeof(b));
+}

test/Sema/address-packed.c

@@ -0,0 +1,163 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+#include <stdint.h>
+
+extern void f1(int *);
+extern void f2(char *);
+
+struct Ok {
+  char c;
+  int x;
+};
+
+struct __attribute__((packed)) Arguable {
+  char c0;
+  int x;
+  char c1;
+};
+
+union __attribute__((packed)) UnionArguable {
+  char c;
+  int x;
+};
+
+typedef struct Arguable ArguableT;
+
+struct Arguable *get_arguable();
+
+void to_void(void *);
+
+void g0(void) {
+  {
+    struct Ok ok;
+    f1(&ok.x); // no-warning
+    f2(&ok.c); // no-warning
+  }
+  {
+    struct Arguable arguable;
+    f2(&arguable.c0); // no-warning
+    f1(&arguable.x);  // expected-warning {{packed member 'x' of class or structure 'Arguable'}}
+    f2(&arguable.c1); // no-warning
+
+    f1((int *)(void *)&arguable.x); // no-warning
+    to_void(&arguable.x);           // no-warning
+    void *p = &arguable.x;          // no-warning;
+    to_void(p);
+  }
+  {
+    union UnionArguable arguable;
+    f2(&arguable.c); // no-warning
+    f1(&arguable.x); // expected-warning {{packed member 'x' of class or structure 'UnionArguable'}}
+
+    f1((int *)(void *)&arguable.x); // no-warning
+    to_void(&arguable.x);           // no-warning
+  }
+  {
+    ArguableT arguable;
+    f2(&arguable.c0); // no-warning
+    f1(&arguable.x);  // expected-warning {{packed member 'x' of class or structure 'Arguable'}}
+    f2(&arguable.c1); // no-warning
+
+    f1((int *)(void *)&arguable.x); // no-warning
+    to_void(&arguable.x);           // no-warning
+  }
+  {
+    struct Arguable *arguable = get_arguable();
+    f2(&arguable->c0); // no-warning
+    f1(&arguable->x);  // expected-warning {{packed member 'x' of class or structure 'Arguable'}}
+    f2(&arguable->c1); // no-warning
+
+    f1((int *)(void *)&arguable->x); // no-warning
+    to_void(&arguable->c1);          // no-warning
+  }
+  {
+    ArguableT *arguable = get_arguable();
+    f2(&(arguable->c0)); // no-warning
+    f1(&(arguable->x));  // expected-warning {{packed member 'x' of class or structure 'Arguable'}}
+    f2(&(arguable->c1)); // no-warning
+
+    f1((int *)(void *)&(arguable->x)); // no-warning
+    to_void(&(arguable->c1));          // no-warning
+  }
+}
+
+struct S1 {
+  char c;
+  int i __attribute__((packed));
+};
+
+int *g1(struct S1 *s1) {
+  return &s1->i; // expected-warning {{packed member 'i' of class or structure 'S1'}}
+}
+
+struct S2_i {
+  int i;
+};
+struct __attribute__((packed)) S2 {
+  char c;
+  struct S2_i inner;
+};
+
+int *g2(struct S2 *s2) {
+  return &s2->inner.i; // expected-warning {{packed member 'inner' of class or structure 'S2'}}
+}
+
+struct S2_a {
+  char c;
+  struct S2_i inner __attribute__((packed));
+};
+
+int *g2_a(struct S2_a *s2_a) {
+  return &s2_a->inner.i; // expected-warning {{packed member 'inner' of class or structure 'S2_a'}}
+}
+
+struct __attribute__((packed)) S3 {
+  char c;
+  struct {
+    int i;
+  } inner;
+};
+
+int *g3(struct S3 *s3) {
+  return &s3->inner.i; // expected-warning {{packed member 'inner' of class or structure 'S3'}}
+}
+
+struct S4 {
+  char c;
+  struct __attribute__((packed)) {
+    int i;
+  } inner;
+};
+
+int *g4(struct S4 *s4) {
+  return &s4->inner.i; // expected-warning {{packed member 'i' of class or structure 'S4::(anonymous)'}}
+}
+
+struct S5 {
+  char c;
+  struct {
+    char c1;
+    int i __attribute__((packed));
+  } inner;
+};
+
+int *g5(struct S5 *s5) {
+  return &s5->inner.i; // expected-warning {{packed member 'i' of class or structure 'S5::(anonymous)'}}
+}
+
+struct __attribute__((packed, aligned(2))) AlignedTo2 {
+  int x;
+};
+
+char *g6(struct AlignedTo2 *s) {
+  return (char *)&s->x; // no-warning
+}
+
+struct __attribute__((packed, aligned(2))) AlignedTo2Bis {
+  int x;
+};
+
+struct AlignedTo2Bis* g7(struct AlignedTo2 *s)
+{
+    return (struct AlignedTo2Bis*)&s->x; // no-warning
+}

test/SemaCXX/address-packed-member-memops.cpp

@@ -0,0 +1,28 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+// expected-no-diagnostics
+
+struct B {
+  int x, y, z, w;
+} b;
+
+struct __attribute__((packed)) A {
+  struct B b;
+} a;
+
+typedef __typeof__(sizeof(int)) size_t;
+
+extern "C" {
+void *memcpy(void *dest, const void *src, size_t n);
+int memcmp(const void *s1, const void *s2, size_t n);
+void *memmove(void *dest, const void *src, size_t n);
+void *memset(void *s, int c, size_t n);
+}
+
+int x;
+
+void foo() {
+  memcpy(&a.b, &b, sizeof(b));
+  memmove(&a.b, &b, sizeof(b));
+  memset(&a.b, 0, sizeof(b));
+  x = memcmp(&a.b, &b, sizeof(b));
+}

test/SemaCXX/address-packed.cpp

@@ -0,0 +1,114 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+extern void f1(int *);
+extern void f2(char *);
+
+struct __attribute__((packed)) Arguable {
+  int x;
+  char c;
+  static void foo();
+};
+
+extern void f3(void());
+
+namespace Foo {
+struct __attribute__((packed)) Arguable {
+  char c;
+  int x;
+  static void foo();
+};
+}
+
+struct Arguable *get_arguable();
+
+void f4(int &);
+
+void to_void(void *);
+
+template <typename... T>
+void sink(T...);
+
+void g0() {
+  {
+    Foo::Arguable arguable;
+    f1(&arguable.x);   // expected-warning {{packed member 'x' of class or structure 'Foo::Arguable'}}
+    f2(&arguable.c);   // no-warning
+    f3(&arguable.foo); // no-warning
+
+    to_void(&arguable.x);                             // no-warning
+    void *p1 = &arguable.x;                           // no-warning
+    void *p2 = static_cast<void *>(&arguable.x);      // no-warning
+    void *p3 = reinterpret_cast<void *>(&arguable.x); // no-warning
+    void *p4 = (void *)&arguable.x;                   // no-warning
+    sink(p1, p2, p3, p4);
+  }
+  {
+    Arguable arguable1;
+    Arguable &arguable(arguable1);
+    f1(&arguable.x);   // expected-warning {{packed member 'x' of class or structure 'Arguable'}}
+    f2(&arguable.c);   // no-warning
+    f3(&arguable.foo); // no-warning
+  }
+  {
+    Arguable *arguable1;
+    Arguable *&arguable(arguable1);
+    f1(&arguable->x);   // expected-warning {{packed member 'x' of class or structure 'Arguable'}}
+    f2(&arguable->c);   // no-warning
+    f3(&arguable->foo); // no-warning
+  }
+}
+
+struct __attribute__((packed)) A {
+  int x;
+  char c;
+
+  int *f0() {
+    return &this->x; // expected-warning {{packed member 'x' of class or structure 'A'}}
+  }
+
+  int *g0() {
+    return &x; // expected-warning {{packed member 'x' of class or structure 'A'}}
+  }
+
+  char *h0() {
+    return &c; // no-warning
+  }
+};
+
+struct B : A {
+  int *f1() {
+    return &this->x; // expected-warning {{packed member 'x' of class or structure 'A'}}
+  }
+
+  int *g1() {
+    return &x; // expected-warning {{packed member 'x' of class or structure 'A'}}
+  }
+
+  char *h1() {
+    return &c; // no-warning
+  }
+};
+
+template <typename Ty>
+class __attribute__((packed)) S {
+  Ty X;
+
+public:
+  const Ty *get() const {
+    return &X; // expected-warning {{packed member 'X' of class or structure 'S<int>'}}
+               // expected-warning@-1 {{packed member 'X' of class or structure 'S<float>'}}
+  }
+};
+
+template <typename Ty>
+void h(Ty *);
+
+void g1() {
+  S<int> s1;
+  s1.get(); // expected-note {{in instantiation of member function 'S<int>::get'}}
+
+  S<char> s2;
+  s2.get();
+
+  S<float> s3;
+  s3.get(); // expected-note {{in instantiation of member function 'S<float>::get'}}
+}