/* { dg-do compile } */ /* { dg-require-effective-target int32plus } */ typedef int int32_t; typedef unsigned char uint8_t; typedef unsigned long int uintptr_t; typedef uint8_t scm_t_uint8; typedef int32_t scm_t_int32; typedef uintptr_t scm_t_uintptr; typedef scm_t_uintptr scm_t_bits; typedef struct scm_unused_struct { } *SCM; enum scm_tc8_tags { scm_tc8_flag = 4 + 0x00, scm_tc8_char = 4 + 0x08, scm_tc8_unused_0 = 4 + 0x10, scm_tc8_unused_1 = 4 + 0x18 }; struct __jmp_buf_tag { }; typedef struct __jmp_buf_tag jmp_buf[1]; typedef struct scm_t_cell { } scm_t_cell; struct scm_prompt_registers { jmp_buf regs; }; enum { SCM_VM_APPLY_HOOK, SCM_VM_PUSH_CONTINUATION_HOOK, SCM_VM_POP_CONTINUATION_HOOK, SCM_VM_NEXT_HOOK, SCM_VM_ABORT_CONTINUATION_HOOK, SCM_VM_RESTORE_CONTINUATION_HOOK, SCM_VM_NUM_HOOKS, }; typedef SCM (*scm_t_vm_engine) (SCM vm, SCM program, SCM *argv, int nargs); struct scm_vm { scm_t_uint8 *ip; SCM *sp; SCM *fp; int engine; int trace_level; }; static SCM vm_regular_engine (SCM vm, SCM program, SCM *argv, int nargs) { } static SCM vm_debug_engine (SCM vm, SCM program, SCM *argv, int nargs) { register scm_t_uint8 *ip ; register SCM *sp ; register SCM *fp ; struct scm_vm *vp = ((struct scm_vm *) ((((scm_t_bits) (0? (*(SCM*)0=((((SCM *)((scm_t_cell *) (((scm_t_bits) (0? (*(SCM*)0=((((vm))))): (((vm)))))))) [((1))]))): (((SCM *)((scm_t_cell *) (((scm_t_bits) (0? (*(SCM*)0=((((vm))))): (((vm)))))))) [((1))])))))); static const void **jump_table_pointer = ((void *)0); const void **jump_table; if (__builtin_expect ((!jump_table_pointer), 0)) { jump_table_pointer[0] = &&l_nop; } l_nop: { SCM *old_sp; scm_t_int32 n; old_sp = sp; sp = (fp - 1) + n; if (old_sp < sp) { while (old_sp < sp) *++old_sp = ((SCM) ((((((9)) << 8) + scm_tc8_flag)))); } { { if (__builtin_expect ((vp->trace_level > 0), 0)) { { vp->ip = ip; vp->sp = sp; vp->fp = fp; }; vm_dispatch_hook (vm, SCM_VM_NEXT_HOOK); } }; }; } { SCM k, prompt; if ((_setjmp (((struct scm_prompt_registers*)((((scm_t_bits) (0? (*(SCM*)0=((((SCM *)((scm_t_cell *) (((scm_t_bits) (0? (*(SCM*)0=((((prompt))))): (((prompt)))))))) [((2))]))): (((SCM *)((scm_t_cell *) (((scm_t_bits) (0? (*(SCM*)0=((((prompt))))): (((prompt)))))))) [((2))]))))))->regs))) { { ip = vp->ip; sp = vp->sp; fp = vp->fp; }; { { if (__builtin_expect ((vp->trace_level > 0), 0)) { { vp->ip = ip; vp->sp = sp; vp->fp = fp; }; vm_dispatch_hook (vm, SCM_VM_NEXT_HOOK); } }; ; goto *jump_table[(*ip++) & ((1<<8)-1)]; }; } if (__builtin_expect ((vp->trace_level > 0), 0)) { { vp->ip = ip; vp->sp = sp; vp->fp = fp; }; vm_dispatch_hook (vm, SCM_VM_NEXT_HOOK); } ; } } static const scm_t_vm_engine vm_engines[] = { vm_regular_engine, vm_debug_engine }; SCM scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs) { struct scm_vm *vp = ((struct scm_vm *) ((((scm_t_bits) (0? (*(SCM*)0=((((SCM *)((scm_t_cell *) (((scm_t_bits) (0? (*(SCM*)0=((((vm))))): (((vm)))))))) [((1))]))): (((SCM *)((scm_t_cell *) (((scm_t_bits) (0? (*(SCM*)0=((((vm))))): (((vm)))))))) [((1))])))))); return vm_engines[vp->engine](vm, program, argv, nargs); }