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| author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
| commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
| tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/c-c++-common/ubsan/overflow-mul-3.c | |
| parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
| download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip | |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/c-c++-common/ubsan/overflow-mul-3.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/c-c++-common/ubsan/overflow-mul-3.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/c-c++-common/ubsan/overflow-mul-3.c b/gcc-4.9/gcc/testsuite/c-c++-common/ubsan/overflow-mul-3.c new file mode 100644 index 000000000..037609be0 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/c-c++-common/ubsan/overflow-mul-3.c @@ -0,0 +1,46 @@ +/* { dg-do run } */ +/* { dg-options "-fsanitize=signed-integer-overflow" } */ + +#include <stdio.h> + +__attribute__((noinline, noclone)) long long +mul (long long x, long long y) +{ + return x * y; +} + +long long tab[] = { + 0x7fffffffLL, 0x7fffffffLL, 0x3fffffff00000001LL, + -0x80000000LL, -0x80000000LL, 0x4000000000000000LL, + 0x7fffffffLL, -0x80000000LL, -0x3fffffff80000000LL, + -0x80000000LL, 0x7fffffffLL, -0x3fffffff80000000LL, + 3LL, 5LL, 15LL, + -3LL, -9LL, 27LL, + 6LL, -7LL, -42LL, + -12LL, 13LL, -156LL, + 0x1555555555555555LL, 6LL, 0x7ffffffffffffffeLL, + -0x1555555555555555LL, -6LL, 0x7ffffffffffffffeLL, + 0x1555555555555555LL, -6LL, -0x7ffffffffffffffeLL, + -0x1555555555555555LL, 6LL, -0x7ffffffffffffffeLL, + 0x81234567LL, 0xfdbe971fLL, 0x7fffffffbea72879LL, + -0x81234567LL, -0xfdbe971fLL, 0x7fffffffbea72879LL, + 0x81234567LL, -0xfdbe971fLL, -0x7fffffffbea72879LL, + -0x81234567LL, 0xfdbe971fLL, -0x7fffffffbea72879LL +}; + +int +main () +{ + fputs ("UBSAN TEST START\n", stderr); + + unsigned int i; + for (i = 0; i < sizeof (tab) / sizeof (long long); i += 3) + if (mul (tab[i], tab[i + 1]) != tab[i + 2] + || mul (tab[i + 1], tab[i]) != tab[i + 2]) + __builtin_abort (); + + fputs ("UBSAN TEST END\n", stderr); + return 0; +} + +/* { dg-output "UBSAN TEST START(\n|\r\n|\r)UBSAN TEST END" } */ |