/* { dg-do compile } */ | |
/* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=2" } */ | |
/* Source: Ian Lance Taylor. Dual of no-strict-overflow-6.c. */ | |
/* VRP test. This turns into an infinite loop (depending on what | |
bigtime_test does), but at least we warn about it. */ | |
extern int bigtime_test (int); | |
int | |
foo () | |
{ | |
int j; | |
for (j = 1; 0 < j; j *= 2) /* { dg-warning "assuming signed overflow does not occur" "correct warning" { xfail *-*-* } } */ | |
if (! bigtime_test (j)) | |
return 1; | |
return 0; | |
} |