Add the clang library to the repo (with some of my changes, too).

1 files changed, 120 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/expressions.cpp b/clang/test/SemaCXX/expressions.cpp
new file mode 100644
index 0000000..355833e
--- /dev/null
+++ b/clang/test/SemaCXX/expressions.cpp
@@ -0,0 +1,120 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s 
+
+void choice(int);
+int choice(bool);
+
+void test() {
+  // Result of ! must be type bool.
+  int i = choice(!1);
+}
+
+// rdar://8018252
+void f0() {
+  extern void f0_1(int*);
+  register int x;
+  f0_1(&x);
+}
+
+namespace test1 {
+  template <class T> void bar(T &x) { T::fail(); }
+  template <class T> void bar(volatile T &x) {}
+
+  void test_ints() {
+    volatile int x;
+    bar(x = 5);
+    bar(x += 5);
+  }
+
+  enum E { E_zero };
+  void test_enums() {
+    volatile E x;
+    bar(x = E_zero);
+    bar(x += E_zero); // expected-error {{incompatible type}}
+  }
+}
+
+int test2(int x) {
+  return x && 4; // expected-warning {{use of logical '&&' with constant operand}} \
+                   // expected-note {{use '&' for a bitwise operation}} \
+                   // expected-note {{remove constant to silence this warning}}
+
+  return x && sizeof(int) == 4;  // no warning, RHS is logical op.
+  return x && true;
+  return x && false;
+  return x || true;
+  return x || false;
+
+  return x && (unsigned)0; // expected-warning {{use of logical '&&' with constant operand}} \
+                   // expected-note {{use '&' for a bitwise operation}} \
+                   // expected-note {{remove constant to silence this warning}}
+
+  return x || (unsigned)1; // expected-warning {{use of logical '||' with constant operand}} \
+                   // expected-note {{use '|' for a bitwise operation}}
+
+  return x || 0; // expected-warning {{use of logical '||' with constant operand}} \
+                   // expected-note {{use '|' for a bitwise operation}}
+  return x || 1; // expected-warning {{use of logical '||' with constant operand}} \
+                   // expected-note {{use '|' for a bitwise operation}}
+  return x || -1; // expected-warning {{use of logical '||' with constant operand}} \
+                   // expected-note {{use '|' for a bitwise operation}}
+  return x || 5; // expected-warning {{use of logical '||' with constant operand}} \
+                   // expected-note {{use '|' for a bitwise operation}}
+  return x && 0; // expected-warning {{use of logical '&&' with constant operand}} \
+                   // expected-note {{use '&' for a bitwise operation}} \
+                   // expected-note {{remove constant to silence this warning}}
+  return x && 1; // expected-warning {{use of logical '&&' with constant operand}} \
+                   // expected-note {{use '&' for a bitwise operation}} \
+                   // expected-note {{remove constant to silence this warning}}
+  return x && -1; // expected-warning {{use of logical '&&' with constant operand}} \
+                   // expected-note {{use '&' for a bitwise operation}} \
+                   // expected-note {{remove constant to silence this warning}}
+  return x && 5; // expected-warning {{use of logical '&&' with constant operand}} \
+                   // expected-note {{use '&' for a bitwise operation}} \
+                   // expected-note {{remove constant to silence this warning}}
+  return x || (0); // expected-warning {{use of logical '||' with constant operand}} \
+                   // expected-note {{use '|' for a bitwise operation}}
+  return x || (1); // expected-warning {{use of logical '||' with constant operand}} \
+                   // expected-note {{use '|' for a bitwise operation}}
+  return x || (-1); // expected-warning {{use of logical '||' with constant operand}} \
+                   // expected-note {{use '|' for a bitwise operation}}
+  return x || (5); // expected-warning {{use of logical '||' with constant operand}} \
+                   // expected-note {{use '|' for a bitwise operation}}
+  return x && (0); // expected-warning {{use of logical '&&' with constant operand}} \
+                   // expected-note {{use '&' for a bitwise operation}} \
+                   // expected-note {{remove constant to silence this warning}}
+  return x && (1); // expected-warning {{use of logical '&&' with constant operand}} \
+                   // expected-note {{use '&' for a bitwise operation}} \
+                   // expected-note {{remove constant to silence this warning}}
+  return x && (-1); // expected-warning {{use of logical '&&' with constant operand}} \
+                   // expected-note {{use '&' for a bitwise operation}} \
+                   // expected-note {{remove constant to silence this warning}}
+  return x && (5); // expected-warning {{use of logical '&&' with constant operand}} \
+                   // expected-note {{use '&' for a bitwise operation}} \
+                   // expected-note {{remove constant to silence this warning}}
+}
+
+template<unsigned int A, unsigned int B> struct S
+{
+  enum {
+    e1 = A && B,
+    e2 = A && 7      // expected-warning {{use of logical '&&' with constant operand}} \
+                     // expected-note {{use '&' for a bitwise operation}} \
+                     // expected-note {{remove constant to silence this warning}}
+  };
+
+  int foo() {
+    int x = A && B;
+    int y = B && 3;  // expected-warning {{use of logical '&&' with constant operand}} \
+                     // expected-note {{use '&' for a bitwise operation}} \
+                     // expected-note {{remove constant to silence this warning}}
+
+    return x + y;
+  }
+};
+
+void test3() {
+  S<5, 8> s1;
+  S<2, 7> s2;
+  (void)s1.foo();
+  (void)s2.foo();
+}