/* { dg-do compile } */ | |
/* { dg-skip-if "" { *-*-* } { "-fno-fat-lto-objects" } { "" } } */ | |
/* { dg-options "-fdump-tree-optimized-blocks" } */ | |
unsigned register1; | |
unsigned register2; | |
void busy_wait_for_register (int x) | |
{ | |
volatile unsigned* ptr; | |
switch(x) { | |
case 0x1111: | |
ptr = ®ister1; | |
break; | |
case 0x2222: | |
ptr = ®ister2; | |
break; | |
default: | |
return; | |
} | |
while (*ptr) {} | |
} | |
/* { dg-final { scan-tree-dump "loop depth 1" "optimized" } } */ |