gcc/testsuite/gcc.target/arm/pr40657-2.c

   1 /* { dg-options "-Os -mthumb" }  */
   2 /* { dg-require-effective-target arm_thumb1_ok } */
   3 /* { dg-final { scan-assembler-not "sub\[\\t \]*sp,\[\\t \]*sp" } } */
   4 /* { dg-final { scan-assembler-not "add\[\\t \]*sp,\[\\t \]*sp" } } */
   5
   6 /* Here, we test that if there's a pop of r[4567] in the epilogue,
   7    add sp,sp,#12 is removed and replaced by three additional pops
   8    of lower-numbered regs.  */
   9
  10 extern void bar(int*);
  11
  12 int t1, t2, t3, t4, t5;
  13 int foo()
  14 {
  15   int i,j,k,x = 0;
  16   for (i = 0; i < t1; i++)
  17     for (j = 0; j < t2; j++)
  18           bar(&x);
  19   return x;
  20 }