Merge branch 'master' of ssh://bitbucket.org/czan/honours

1 files changed, 209 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/scope-check.cpp b/clang/test/SemaCXX/scope-check.cpp
new file mode 100644
index 0000000..b659de0
--- /dev/null
+++ b/clang/test/SemaCXX/scope-check.cpp
@@ -0,0 +1,209 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -fblocks %s -Wno-unreachable-code
+// RUN: %clang_cc1 -fsyntax-only -verify -fblocks -std=gnu++11 %s -Wno-unreachable-code
+
+namespace test0 {
+  struct D { ~D(); };
+
+  int f(bool b) {
+    if (b) {
+      D d;
+      goto end;
+    }
+
+  end:
+    return 1;
+  }
+}
+
+namespace test1 {
+  struct C { C(); };
+
+  int f(bool b) {
+    if (b)
+      goto foo; // expected-error {{goto into protected scope}}
+    C c; // expected-note {{jump bypasses variable initialization}}
+  foo:
+    return 1;
+  }
+}
+
+namespace test2 {
+  struct C { C(); };
+
+  int f(void **ip) {
+    static void *ips[] = { &&lbl1, &&lbl2 };
+
+    C c;
+    goto *ip;
+  lbl1:
+    return 0;
+  lbl2:
+    return 1;
+  }
+}
+
+namespace test3 {
+  struct C { C(); };
+
+  int f(void **ip) {
+    static void *ips[] = { &&lbl1, &&lbl2 };
+
+    goto *ip;
+  lbl1: {
+    C c;
+    return 0;
+  }
+  lbl2:
+    return 1;
+  }
+}
+
+namespace test4 {
+  struct C { C(); };
+  struct D { ~D(); };
+
+  int f(void **ip) {
+    static void *ips[] = { &&lbl1, &&lbl2 };
+
+    C c0;
+
+    goto *ip; // expected-error {{indirect goto might cross protected scopes}}
+    C c1; // expected-note {{jump bypasses variable initialization}}
+  lbl1: // expected-note {{possible target of indirect goto}}
+    return 0;
+  lbl2:
+    return 1;
+  }
+}
+
+namespace test5 {
+  struct C { C(); };
+  struct D { ~D(); };
+
+  int f(void **ip) {
+    static void *ips[] = { &&lbl1, &&lbl2 };
+    C c0;
+
+    goto *ip;
+  lbl1: // expected-note {{possible target of indirect goto}}
+    return 0;
+  lbl2:
+    if (ip[1]) {
+      D d; // expected-note {{jump exits scope of variable with non-trivial destructor}}
+      ip += 2;
+      goto *ip; // expected-error {{indirect goto might cross protected scopes}}
+    }
+    return 1;
+  }
+}
+
+namespace test6 {
+  struct C { C(); };
+
+  unsigned f(unsigned s0, unsigned s1, void **ip) {
+    static void *ips[] = { &&lbl1, &&lbl2, &&lbl3, &&lbl4 };
+    C c0;
+
+    goto *ip;
+  lbl1:
+    s0++;
+    goto *++ip;
+  lbl2:
+    s0 -= s1;
+    goto *++ip;
+  lbl3: {
+    unsigned tmp = s0;
+    s0 = s1;
+    s1 = tmp;
+    goto *++ip;
+  }
+  lbl4:
+    return s0;
+  }
+}
+
+// C++0x says it's okay to skip non-trivial initializers on static
+// locals, and we implement that in '03 as well.
+namespace test7 {
+  struct C { C(); };
+
+  void test() {
+    goto foo;
+    static C c;
+  foo:
+    return;
+  }
+}
+
+// PR7789
+namespace test8 {
+  void test1(int c) {
+    switch (c) {
+    case 0:
+      int x = 56; // expected-note {{jump bypasses variable initialization}}
+    case 1:       // expected-error {{switch case is in protected scope}}
+      x = 10;
+    }
+  }
+
+  void test2() {
+    goto l2;     // expected-error {{goto into protected scope}}
+  l1: int x = 5; // expected-note {{jump bypasses variable initialization}}
+  l2: x++;
+  }
+}
+
+namespace test9 {
+  struct S { int i; };
+  void test1() {
+    goto foo;
+    S s;
+  foo:
+    return;
+  }
+  unsigned test2(unsigned x, unsigned y) {
+    switch (x) {
+    case 2:
+      S s;
+      if (y > 42) return x + y;
+    default:
+      return x - 2;
+    }
+  }
+}
+
+// http://llvm.org/PR10462
+namespace PR10462 {
+enum MyEnum {
+  something_valid,
+  something_invalid
+};
+
+bool recurse() {
+  MyEnum K;
+  switch (K) { // expected-warning {{enumeration value 'something_invalid' not handled in switch}}
+    case something_valid:
+    case what_am_i_thinking: // expected-error {{use of undeclared identifier}}
+      int *X = 0;
+      if (recurse()) {
+      }
+
+      break;
+  }
+}
+
+
+namespace test10 {
+

+int test() {

+  static void *ps[] = { &&a0 };

+  goto *&&a0; // expected-error {{goto into protected scope}}

+  int a = 3; // expected-note {{jump bypasses variable initialization}}

+ a0:

+  return 0;

+}
+
+}
+
+}
+