gcc/testsuite/gcc.target/arm/pr45701-3.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target arm_thumb2_ok } */
   3 /* { dg-options "-mthumb -Os" }  */
   4 /* { dg-final { scan-assembler "push\t.*r8" } } */
   5 /* { dg-final { scan-assembler-not "push\t*r3" } } */
   6
   7 extern int hist_verify;
   8 extern char *pre_process_line (char*);
   9 extern char* savestring1 (char*, char*, int, int);
  10 extern char* str_cpy (char*, char*);
  11 extern int str_len (char*);
  12 extern char* x_malloc (int);
  13 #define savestring(x) (char *)str_cpy (x_malloc (1 + str_len (x)), (x))
  14
  15 char *
  16 history_expand_line_internal (char* line)
  17 {
  18   char *new_line;
  19   int old_verify;
  20
  21   old_verify = hist_verify;
  22   hist_verify = 0;
  23   new_line = pre_process_line (line);
  24   hist_verify = old_verify;
  25   /* Two tail calls here, but r3 is used to pass values.  */
  26   return (new_line == line) ? savestring (line) :
  27     savestring1 (new_line, line, 0, old_verify+1);
  28 }