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/* { dg-do compile } */
/* { dg-options "-O1 -fdump-tree-dom2" } */
extern void abort (void);
struct rtx_def;
typedef struct rtx_def *rtx;
struct rtx_def
{
int code;
unsigned int unchanging:1;
};
static rtx current_sym_addr;
int
foo ()
{
if (current_sym_addr->code == 42
&& (({
rtx _rtx = current_sym_addr;
if (((_rtx)->code) != 42)
abort ();
_rtx;}
)->unchanging))
return 0;
}
/* There should be precisely one load of ->code. If there is
more than, then the dominator optimizations failed. */
/* { dg-final { scan-tree-dump-times "->code" 1 "dom2"} } */
/* There should be two IF statements. One for 'current_sym_addr->code == 42'.
The other one for '(EXPR)->unchanging'. */
/* { dg-final { scan-tree-dump-times "if " 2 "dom2"} } */
/* { dg-final { cleanup-tree-dump "dom2" } } */
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