/* { dg-do compile } */ | |
/* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=1" } */ | |
/* Based on strict-overflow-5.c. */ | |
/* We can only unroll when using strict overflow semantics. But we | |
don't issue a warning for relying on undefined overflow in | |
loops. */ | |
int foo (int i) | |
{ | |
int index; | |
int r=0; | |
for (index = i; index <= i+4; index+=2) | |
r++; | |
return r; | |
} |