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// RUN: %clang_cc1 -fsyntax-only -verify -fblocks -fcxx-exceptions %s -Wno-unreachable-code
// RUN: %clang_cc1 -fsyntax-only -verify -fblocks -fcxx-exceptions -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;
}
}
// pr13812
namespace test11 {
struct C {
C(int x);
~C();
};
void f(void **ip) {
static void *ips[] = { &&l0 };
l0: // expected-note {{possible target of indirect goto}}
C c0 = 42; // expected-note {{jump exits scope of variable with non-trivial destructor}}
goto *ip; // expected-error {{indirect goto might cross protected scopes}}
}
}
namespace test12 {
struct C {
C(int x);
~C();
};
void f(void **ip) {
static void *ips[] = { &&l0 };
const C c0 = 17;
l0: // expected-note {{possible target of indirect goto}}
const C &c1 = 42; // expected-note {{jump exits scope of variable with non-trivial destructor}}
const C &c2 = c0;
goto *ip; // expected-error {{indirect goto might cross protected scopes}}
}
}
namespace test13 {
struct C {
C(int x);
~C();
int i;
};
void f(void **ip) {
static void *ips[] = { &&l0 };
l0: // expected-note {{possible target of indirect goto}}
const int &c1 = C(1).i; // expected-note {{jump exits scope of variable with non-trivial destructor}}
goto *ip; // expected-error {{indirect goto might cross protected scopes}}
}
}
namespace test14 {
struct C {
C(int x);
~C();
operator int&() const;
};
void f(void **ip) {
static void *ips[] = { &&l0 };
l0:
// no warning since the C temporary is destructed before the goto.
const int &c1 = C(1);
goto *ip;
}
}
// PR14225
namespace test15 {
void f1() try {
goto x; // expected-error {{goto into protected scope}}
} catch(...) { // expected-note {{jump bypasses initialization of catch block}}
x: ;
}
void f2() try { // expected-note {{jump bypasses initialization of try block}}
x: ;
} catch(...) {
goto x; // expected-error {{goto into protected scope}}
}
}
namespace test16 {
Invalid inv; // expected-error {{unknown type name}}
// Make sure this doesn't assert.
void fn()
{
int c = 0;
if (inv)
Here: ;
goto Here;
}
}
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