forked from OSchip/llvm-project
148 lines
6.9 KiB
C
148 lines
6.9 KiB
C
// RUN: %clang_cc1 %s -verify -fsyntax-only
|
|
typedef unsigned long long uint64_t;
|
|
typedef unsigned long long uint32_t;
|
|
|
|
uint64_t f0(uint64_t);
|
|
uint64_t f1(uint64_t, uint32_t);
|
|
uint64_t f2(uint64_t, ...);
|
|
|
|
static const uint64_t overflow = 1 * 4608 * 1024 * 1024; // expected-warning {{overflow in expression; result is 536870912 with type 'int'}}
|
|
|
|
uint64_t check_integer_overflows(int i) {
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
uint64_t overflow = 4608 * 1024 * 1024,
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
overflow2 = (uint64_t)(4608 * 1024 * 1024),
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
overflow3 = (uint64_t)(4608 * 1024 * 1024 * i),
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
overflow4 = (1ULL * ((4608) * ((1024) * (1024))) + 2ULL),
|
|
// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
|
|
multi_overflow = (uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024));
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
overflow += overflow2 = overflow3 = (uint64_t)(4608 * 1024 * 1024);
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
overflow += overflow2 = overflow3 = 4608 * 1024 * 1024;
|
|
|
|
uint64_t not_overflow = 4608 * 1024 * 1024ULL;
|
|
uint64_t not_overflow2 = (1ULL * ((uint64_t)(4608) * (1024 * 1024)) + 2ULL);
|
|
|
|
// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
|
|
overflow = 4608 * 1024 * 1024 ? 4608 * 1024 * 1024 : 0;
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
overflow = 0 ? 0 : 4608 * 1024 * 1024;
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
if (4608 * 1024 * 1024)
|
|
return 0;
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
if ((uint64_t)(4608 * 1024 * 1024))
|
|
return 1;
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
if ((uint64_t)(4608 * 1024 * 1024))
|
|
return 2;
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
if ((uint64_t)(4608 * 1024 * 1024 * i))
|
|
return 3;
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
if ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL))
|
|
return 4;
|
|
|
|
// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
|
|
if ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)))
|
|
return 5;
|
|
|
|
switch (i) {
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
case 4608 * 1024 * 1024:
|
|
return 6;
|
|
// expected-warning@+1 {{overflow in expression; result is 537919488 with type 'int'}}
|
|
case (uint64_t)(4609 * 1024 * 1024):
|
|
return 7;
|
|
// expected-error@+1 {{expression is not an integer constant expression}}
|
|
case ((uint64_t)(4608 * 1024 * 1024 * i)):
|
|
return 8;
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
case ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL)):
|
|
return 9;
|
|
// expected-warning@+2 2{{overflow in expression; result is 536870912 with type 'int'}}
|
|
// expected-warning@+1 {{overflow converting case value to switch condition type (288230376151711744 to 0)}}
|
|
case ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024))):
|
|
return 10;
|
|
}
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
while (4608 * 1024 * 1024);
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
while ((uint64_t)(4608 * 1024 * 1024));
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
while ((uint64_t)(4608 * 1024 * 1024));
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
while ((uint64_t)(4608 * 1024 * 1024 * i));
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
while ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL));
|
|
|
|
// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
|
|
while ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
do { } while (4608 * 1024 * 1024);
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
do { } while ((uint64_t)(4608 * 1024 * 1024));
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
do { } while ((uint64_t)(4608 * 1024 * 1024));
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
do { } while ((uint64_t)(4608 * 1024 * 1024 * i));
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
do { } while ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL));
|
|
|
|
// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
|
|
do { } while ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
|
|
|
|
// expected-warning@+3 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
// expected-warning@+3 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
// expected-warning@+3 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
for (uint64_t i = 4608 * 1024 * 1024;
|
|
(uint64_t)(4608 * 1024 * 1024);
|
|
i += (uint64_t)(4608 * 1024 * 1024 * i));
|
|
|
|
// expected-warning@+3 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
// expected-warning@+3 2{{overflow in expression; result is 536870912 with type 'int'}}
|
|
// expected-warning@+3 2{{overflow in expression; result is 536870912 with type 'int'}}
|
|
for (uint64_t i = (1ULL * ((4608) * ((1024) * (1024))) + 2ULL);
|
|
((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
|
|
i = ((4608 * 1024 * 1024) + ((uint64_t)(4608 * 1024 * 1024))));
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
_Complex long long x = 4608 * 1024 * 1024;
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
(__real__ x) = 4608 * 1024 * 1024;
|
|
|
|
// expected-warning@+1 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
(__imag__ x) = 4608 * 1024 * 1024;
|
|
|
|
// expected-warning@+4 {{overflow in expression; result is 536870912 with type 'int'}}
|
|
// expected-warning@+3 {{array index 536870912 is past the end of the array (which contains 10 elements)}}
|
|
// expected-note@+1 {{array 'a' declared here}}
|
|
uint64_t a[10];
|
|
a[4608 * 1024 * 1024] = 1i;
|
|
|
|
// expected-warning@+1 2{{overflow in expression; result is 536870912 with type 'int'}}
|
|
return ((4608 * 1024 * 1024) + ((uint64_t)(4608 * 1024 * 1024)));
|
|
}
|