| /* Copyright (C) 2002 Free Software Foundation |
| |
| Check that constant folding of shift operations is working. |
| |
| Roger Sayle, 10th October 2002. */ |
| |
| extern void abort (void); |
| extern void link_error (void); |
| |
| void |
| utest (unsigned int x) |
| { |
| if (x >> 0 != x) |
| link_error (); |
| |
| if (x << 0 != x) |
| link_error (); |
| |
| if (0 << x != 0) |
| link_error (); |
| |
| if (0 >> x != 0) |
| link_error (); |
| |
| if (-1 >> x != -1) |
| link_error (); |
| |
| if (~0 >> x != ~0) |
| link_error (); |
| } |
| |
| void |
| stest (int x) |
| { |
| if (x >> 0 != x) |
| link_error (); |
| |
| if (x << 0 != x) |
| link_error (); |
| |
| if (0 << x != 0) |
| link_error (); |
| |
| if (0 >> x != 0) |
| link_error (); |
| } |
| |
| int |
| main () |
| { |
| utest(9); |
| utest(0); |
| |
| stest(9); |
| stest(0); |
| |
| return 0; |
| } |
| |
| #ifndef __OPTIMIZE__ |
| void |
| link_error () |
| { |
| abort (); |
| } |
| #endif |
