gcc/testsuite/gcc.target/arm/thumb1-far-jump-1.c

/* Check for thumb1 far jump. Shouldn't save lr for small leaf functions
 * even with a branch in it.  */
/* { dg-options "-Os" } */
/* { dg-skip-if "" { ! { arm_thumb1 } } } */

void f()
{
  for (;;);
}

volatile int g;
void f2(int i)
{
  if (i) g=0;
}

void f3(int i)
{
  if (i) {
    g=0;
    g=1;
    g=2;
    g=3;
    g=4;
    g=5;
    g=6;
    g=7;
    g=8;
    g=9;
  }
}

/* { dg-final { scan-assembler-not "push.*lr" } } */