gcc/testsuite/gcc.dg/rtl/x86_64/test-return-const.c.after-expand.c

   1 /* { dg-do run { target x86_64-*-* } } */
   2
   3 extern void abort (void);
   4
   5 int __RTL (startwith ("vregs")) test_returning_constant (void)
   6 {
   7   /* C code:
   8      return 42; */
   9 (function "test_returning_constant"
  10   (insn-chain
  11     (cnote 1 NOTE_INSN_DELETED)
  12     (block 2
  13       (edge-from entry (flags "FALLTHRU"))
  14       (cnote 3 [bb 2] NOTE_INSN_BASIC_BLOCK)
  15       (cnote 2 NOTE_INSN_FUNCTION_BEG)
  16       (cinsn 5 (set (reg:SI <0> [ _1 ])
  17                     (const_int 42)) "../../src/test-return-const.c":3)
  18       (cinsn 8 (set (reg:SI <1> [ <retval> ])
  19                     (reg:SI <0> [ _1 ])) "../../src/test-return-const.c":3)
  20       (cinsn 12 (set (reg/i:SI ax)
  21                     (reg:SI <1> [ <retval> ])) "../../src/test-return-const.c":4)
  22       (cinsn 13 (use (reg/i:SI ax)) "../../src/test-return-const.c":4)
  23       (edge-to exit (flags "FALLTHRU"))
  24     ) ;; block 2
  25   ) ;; insn-chain
  26   (crtl
  27     (return_rtx
  28       (reg/i:SI ax)
  29     ) ;; return_rtx
  30   ) ;; crtl
  31 ) ;; function "test_returning_constant"
  32 }
  33
  34 int main (void)
  35 {
  36   if (test_returning_constant () != 42)
  37     abort ();
  38   return 0;
  39 }