/* { dg-do compile } */ /* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=4" } */ /* Source: Ian Lance Taylor. */ int foo (int j) { int i; int sum = 0; for (i = 1; i < j; i += i) sum += __builtin_abs (i); /* { dg-warning "assuming signed overflow does not occur" "" } */ return sum; }