gcc/testsuite/gcc.target/arm/pr39839.c

   1 /* { dg-options "-mthumb -Os -march=armv5te -mthumb-interwork -fpic" }  */
   2 /* { dg-require-effective-target arm_thumb1_ok } */
   3 /* { dg-prune-output "switch .* conflicts with" } */
   4 /* { dg-final { scan-assembler-not "str\[\\t \]*r.,\[\\t \]*.sp," } } */
   5
   6 struct S
   7 {
   8   int count;
   9   char *addr;
  10 };
  11
  12 void func(const char*, const char*, int, const char*);
  13
  14 /* This function should not need to spill to the stack. */
  15 void test(struct S *p)
  16 {
  17   int off = p->count;
  18   while (p->count >= 0)
  19     {
  20       const char *s = "xyz";
  21       if (*p->addr) s = "pqr";
  22       func("abcde", p->addr + off, off, s);
  23       p->count--;
  24     }
  25 }