Public bug reported:
OS: Ubuntu 12.04.3 LTS
clang version: 3.0-6ubuntu3
In the attached code the function foo2 has a side effect on its second
argument. So, despite the fact that value of v1 has been previously set
to 0, foo1 sould return 0. But if this code was compiled with -O2 (or
higher
Public bug reported:
OS: Ubuntu 12.04.3 LTS
gcc version: 4.6.3-1ubuntu5
It's a slightly modificated test case from gcc-4.6.3 testsuite
(920612-1.c):
int main(){
int a = 0;
if ((int)((~0u) (1 + a))+1 0)
abort();
exit(0);
}
It operates fine after compilation with -O0 or -O1 option (exit
Public bug reported:
OS: Ubuntu 12.04.3 LTS
gcc version: 4.6.3-1ubuntu5
It's a modificated test case from gcc-4.6.3 testsuite (reassoc-11.c):
int main(int a, int b, int c, int d){
int e = (a ^ b) ^ (c ^ d);
int f = (c ^ a) ^ (b ^ d);
return ( * ((int *)(((long unsigned ) c) + (((long
Public bug reported:
OS: Ubuntu 12.04.3 LTS
gcc version: 4.6.3-1ubuntu5
It's a modificated test case from gcc-4.6.3 testsuite (2412-2.c):
int f(int a){
int x = (( a)[(( a % 10) * ( a % 10)) % 10) (((10 - ( a % 10)) * (10
- ( a % 10))) % 10))) * 314160879)]);
if (x==0)
