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/* PR middle-end/36902 Array bound warning with dead code after optimization */
/* { dg-do compile } */
/* { dg-options "-O2 -Warray-bounds -Wall -Wextra" } */
typedef unsigned char __u8;
typedef unsigned short __u16;
static inline unsigned char *
foo(unsigned char * to, const unsigned char * from, int n)
{
switch ( n )
{
case 3:
*to = *from;
break;
case 5:
to[4] = from [4];
break;
}
return to;
}
struct {
int size_of_select;
unsigned char pcr_select[4];
} sel;
int bar(void)
{
static unsigned char buf[64];
sel.size_of_select = 3;
foo(buf, sel.pcr_select, sel.size_of_select);
return 1;
}
static inline unsigned char *
foo2(unsigned char * to, const unsigned char * from, int n)
{
switch ( n )
{
case 3:
*to = *from;
break;
case 5:
to[4] = from [4]; /* { dg-warning "array subscript is above array bounds" "" { xfail *-*-* } } */
break;
}
return to;
}
int baz(void)
{
static unsigned char buf[64];
sel.size_of_select = 5;
foo2(buf, sel.pcr_select, sel.size_of_select);
return 1;
}
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