gcc/testsuite/gcc.target/s390/nobp-return-reg-mixed.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O3 -march=z900 --save-temps -mfunction-return-reg=thunk -mindirect-branch-table" } */
   3
   4 /* We have to generate different thunks for indirect branches
   5    depending on whether the code is compiled for pre z10 machines or
   6    later.  This testcase makes sure this works within the same compile
   7    unit.  */
   8
   9 int __attribute__((noinline,noclone,target("arch=z10")))
  10 bar (int a)
  11 {
  12   return a + 2;
  13 }
  14
  15 int __attribute__((noinline,noclone,target("arch=z9-ec")))
  16 foo (int a)
  17 {
  18   return a + 3;
  19 }
  20
  21 int
  22 main ()
  23 {
  24   if (bar (42) != 44)
  25     __builtin_abort ();
  26
  27   if (foo (42) != 45)
  28     __builtin_abort ();
  29
  30   return 0;
  31 }
  32
  33 /* 1 x bar, 1 x foo */
  34 /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 2 } } */
  35 /* 1 x foo */
  36 /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump_r1use" 1 } } */
  37
  38 /* { dg-final { scan-assembler-times "ex\t" 1 } } */
  39 /* { dg-final { scan-assembler-times "exrl\t" 1 } } */
  40
  41 /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
  42 /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
  43 /* { dg-final { scan-assembler     "section\t.s390_return_reg" } } */
  44 /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */