diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/c-c++-common/ubsan/overflow-sub-2.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/c-c++-common/ubsan/overflow-sub-2.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/c-c++-common/ubsan/overflow-sub-2.c b/gcc-4.9/gcc/testsuite/c-c++-common/ubsan/overflow-sub-2.c new file mode 100644 index 000000000..6476b65d2 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/c-c++-common/ubsan/overflow-sub-2.c @@ -0,0 +1,54 @@ +/* { dg-do run } */ +/* { dg-options "-fsanitize=signed-integer-overflow -Wno-unused-variable" } */ + +#define INT_MAX __INT_MAX__ +#define INT_MIN (-__INT_MAX__ - 1) +#define LONG_MAX __LONG_MAX__ +#define LONG_MIN (-__LONG_MAX__ - 1L) +#define LLONG_MAX __LONG_LONG_MAX__ +#define LLONG_MIN (-__LONG_LONG_MAX__ - 1L) + +int +main (void) +{ + volatile int j = INT_MIN; + volatile int i = 1; + volatile int k = j - i; + j--; + j = INT_MIN + 100; + j -= (1 << 10); + + j = INT_MIN; + i = -1; + k = j - -i; + + i = INT_MIN + 1000; + i -= (1 << 20); + + volatile long int l = LONG_MIN; + volatile long int m = 1; + volatile long int n = l - m; + l--; + l = LONG_MIN + 100; + l -= (1 << 10); + + l = LONG_MIN; + m = -1; + n = l - -m; + + m = LONG_MIN + 1000; + m -= (1 << 20); + + return 0; +} + +/* { dg-output "signed integer overflow: -2147483648 - 1 cannot be represented in type 'int'(\n|\r\n|\r)" } */ +/* { dg-output "\[^\n\r]*signed integer overflow: -2147483648 \\+ -1 cannot be represented in type 'int'(\n|\r\n|\r)" } */ +/* { dg-output "\[^\n\r]*signed integer overflow: -2147483548 \\+ -1024 cannot be represented in type 'int'(\n|\r\n|\r)" } */ +/* { dg-output "\[^\n\r]*signed integer overflow: -2147483648 \\+ -1 cannot be represented in type 'int'(\n|\r\n|\r)" } */ +/* { dg-output "\[^\n\r]*signed integer overflow: -2147482648 \\+ -1048576 cannot be represented in type 'int'(\n|\r\n|\r)" } */ +/* { dg-output "\[^\n\r]*signed integer overflow: -\[^\n\r]* - 1 cannot be represented in type 'long int'(\n|\r\n|\r)" } */ +/* { dg-output "\[^\n\r]*signed integer overflow: -\[^\n\r]* \\+ -1 cannot be represented in type 'long int'(\n|\r\n|\r)" } */ +/* { dg-output "\[^\n\r]*signed integer overflow: -\[^\n\r]* \\+ -1024 cannot be represented in type 'long int'(\n|\r\n|\r)" } */ +/* { dg-output "\[^\n\r]*signed integer overflow: -\[^\n\r]* \\+ -1 cannot be represented in type 'long int'(\n|\r\n|\r)" } */ +/* { dg-output "\[^\n\r]*signed integer overflow: -\[^\n\r]* \\+ -1048576 cannot be represented in type 'long int'" } */ |