Viewing file:  cast-function-1.c (1.61 KB) -rw-r--r--
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/* PR c/12085 */
/* Origin: David Hollenberg <dhollen@mosis.org> */
/* Verify that the compiler doesn't inline a function at
a calling point where it is viewed with a different
prototype than the actual one. */
/* { dg-do compile } */
/* { dg-options "-O3" } */
int foo1(int);
int foo2();
typedef struct {
double d;
int a;
} str_t;
void bar(double d, int i, str_t s)
{
d = ((double (*) (int)) foo1) (i); /* { dg-warning "8:non-compatible|abort" } */
i = ((int (*) (double)) foo1) (d); /* { dg-warning "8:non-compatible|abort" } */
s = ((str_t (*) (int)) foo1) (i); /* { dg-warning "8:non-compatible|abort" } */
((void (*) (int)) foo1) (d); /* { dg-warning "non-compatible|abort" } */
i = ((int (*) (int)) foo1) (i); /* { dg-bogus "non-compatible|abort" } */
(void) foo1 (i); /* { dg-bogus "non-compatible|abort" } */
d = ((double (*) (int)) foo2) (i); /* { dg-warning "8:non-compatible|abort" } */
i = ((int (*) (double)) foo2) (d); /* { dg-bogus "non-compatible|abort" } */
s = ((str_t (*) (int)) foo2) (i); /* { dg-warning "non-compatible|abort" } */
((void (*) (int)) foo2) (d); /* { dg-warning "non-compatible|abort" } */
i = ((int (*) (int)) foo2) (i); /* { dg-bogus "non-compatible|abort" } */
(void) foo2 (i); /* { dg-bogus "non-compatible|abort" } */
}
int foo1(int arg)
{
/* Prevent the function from becoming const and thus DCEd. */
__asm volatile ("" : "+r" (arg));
return arg;
}
int foo2(arg)
int arg;
{
/* Prevent the function from becoming const and thus DCEd. */
__asm volatile ("" : "+r" (arg));
return arg;
}
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