On Jan 10 2017, Martin Sebor <mse...@gmail.com> wrote: > Index: gcc/testsuite/gcc.dg/pr78768.c > =================================================================== > --- gcc/testsuite/gcc.dg/pr78768.c (revision 0) > +++ gcc/testsuite/gcc.dg/pr78768.c (working copy) > @@ -0,0 +1,13 @@ > +/* PR c/78768 - -Walloca-larger-than and -Wformat-length warnings disabled > + by -flto > + { dg-do run } > + { dg-options "-O2 -Walloca-larger-than=10 -Wformat -Wformat-length -flto" > } */ > + > +int main (void) > +{ > + char *d = (char *)__builtin_alloca (12); /* { dg-warning "argument to > .alloca. is too large" } */ > + > + __builtin_sprintf (d, "%32s", "x"); /* { dg-warning "directive writing > 32 bytes into a region of size 12" "-Wformat-length" { xfail *-*-* } } */ > + > + return 0; > +}
Why is that a run test? It cannot be usefully executed. Andreas. -- Andreas Schwab, sch...@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."