Viewing file:  vla-stexp-6.c (2.03 KB) -rw-r--r--
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/* PR29970, PR91038 */
/* { dg-do run } */
/* { dg-options "-O2 -Wunused-variable" } */
int foo3b(void) // should not return 0
{
int n = 0;
return sizeof *({ n = 10; int x[n]; &x; });
}
int foo4(void) // should not ICE
{
return (*({
int n = 20;
char (*x)[n][n] = __builtin_malloc(n * n);
(*x)[12][1] = 1;
x;
}))[12][1];
}
int foo5(void) // should return 1, returns 0
{
int n = 0;
return (*({
n = 20;
char (*x)[n][n] = __builtin_malloc(n * n);
(*x)[12][1] = 1;
(*x)[0][1] = 0;
x;
}))[12][1];
}
int foo5c(void) // should return 400
{
int n = 0;
return sizeof(*({
n = 20;
char (*x)[n][n] = __builtin_malloc(n * n);
(*x)[12][1] = 1;
(*x)[0][1] = 0;
x;
}));
}
int foo5b(void) // should return 1, returns 0
{
int n = 0; /* { dg-warning "unused variable" } */
return (*({
int n = 20;
char (*x)[n][n] = __builtin_malloc(n * n);
(*x)[12][1] = 1;
(*x)[0][1] = 0;
x;
}))[12][1];
}
int foo5a(void) // should return 1, returns 0
{
return (*({
int n = 20;
char (*x)[n][n] = __builtin_malloc(n * n);
(*x)[12][1] = 1;
(*x)[0][1] = 0;
x;
}))[12][1];
}
int main()
{
if (sizeof(int[10]) != foo3b())
__builtin_abort();
if (1 != foo4())
__builtin_abort();
if (400 != foo5c())
__builtin_abort();
if (1 != foo5a())
__builtin_abort();
if (1 != foo5b()) // -O0
__builtin_abort();
if (1 != foo5())
__builtin_abort();
return 0;
}
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