gcc/testsuite/gcc.dg/torture/pr109652.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "-std=gnu17" } */
   3
   4 typedef int UInt;
   5 UInt skeletal_RI5_instr;
   6 __attribute__((__noreturn__)) void vex_assert_fail();
   7 typedef struct {
   8   union {
   9     struct {
  10       UInt imm5;
  11     } I5;
  12   } ARMri5;
  13 } ARMRI5;
  14 typedef enum { ARMin_Alu, ARMin_Shift } ARMInstrTag;
  15 void iregEnc();
  16 static UInt skeletal_RI5(ARMRI5 *ri) {
  17   UInt imm5 = ri->ARMri5.I5.imm5;
  18   __builtin_expect(imm5, 1) ?: vex_assert_fail();
  19   iregEnc(ri->ARMri5);
  20   return skeletal_RI5_instr;
  21 }
  22 ARMInstrTag emit_ARMInstr_i_0;
  23 void *emit_ARMInstr_disp_cp_chain_me_to_slowEP() {
  24   switch (emit_ARMInstr_i_0) {
  25   case ARMin_Alu:
  26     UInt instr, subopc;
  27     UInt rD, rN;
  28     goto bad;
  29     instr |= subopc | rN;
  30   case ARMin_Shift:
  31     rD = 0;
  32     UInt rM = 0;
  33     ARMRI5 argR;
  34     instr = skeletal_RI5(&argR);
  35     instr |= rD | rM;
  36     goto done;
  37   }
  38 bad:
  39 done:
  40   return 0;
  41 }