| /* { 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; |
| |
| }; |
| 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"} } */ |
| |
