| /* The RTL loop optimizer used to replace the output register of the |
| inline assembly with a pseudo although the variable is declared as |
| register asm ("0"). */ |
| |
| /* { dg-do run } */ |
| /* { dg-options "-O2 -Wno-attributes -Wno-implicit-function-declaration" } */ |
| |
| extern void abort (void); |
| |
| static unsigned char __attribute__ ((always_inline)) |
| mytoupper (unsigned char c) |
| { |
| if (c >= 'a' && c <= 'z') |
| c -= 'a' - 'A'; |
| return c; |
| } |
| |
| static unsigned long __attribute__ ((always_inline)) |
| strlen (const char *s) |
| { |
| register unsigned long r0 asm ("0"); |
| const char *tmp = s; |
| |
| asm ( |
| #ifdef __s390x__ |
| " lghi %0, 0\n" |
| #else |
| " lhi %0, 0\n" |
| #endif |
| "0:srst %0,%1\n" |
| " jo 0b" |
| : "=d" (r0), "+a" (tmp) |
| : |
| :"cc"); |
| return r0 - (unsigned long) s; |
| } |
| |
| char boot_command_line[] = "this is a test"; |
| |
| void __attribute__ ((noinline)) |
| foo (char *str) |
| { |
| if (strcmp (str, "THIS IS A TEST") != 0) |
| abort (); |
| } |
| |
| int |
| main () |
| { |
| char upper_command_line[1024]; |
| int i; |
| |
| for (i = 0; i < strlen (boot_command_line); i++) |
| upper_command_line[i] = mytoupper (boot_command_line[i]); |
| |
| upper_command_line[strlen (boot_command_line)] = 0; |
| foo (upper_command_line); |
| |
| return 0; |
| } |