Removed push/pop instructions for rescue/ensure

`OP_PUSHERR`, `OP_POPERR`, `OP_EPUSH` and `OP_EPOP` are removed.

1 files changed, 0 insertions, 86 deletions

diff --git a/src/vm.c b/src/vm.c
index 2dbbe85f8..d11caa5c7 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1231,29 +1231,6 @@ RETRY_TRY_BLOCK:
       NEXT;
     }
 
-    CASE(OP_ONERR, S) {
-      /* check rescue stack */
-      if (mrb->c->ci->ridx == UINT16_MAX-1) {
-        mrb_value exc = mrb_exc_new_str_lit(mrb, E_RUNTIME_ERROR, "too many nested rescues");
-        mrb_exc_set(mrb, exc);
-        goto L_RAISE;
-      }
-      /* expand rescue stack */
-      if (mrb->c->rsize <= mrb->c->ci->ridx) {
-        if (mrb->c->rsize == 0) mrb->c->rsize = RESCUE_STACK_INIT_SIZE;
-        else {
-          mrb->c->rsize *= 2;
-          if (mrb->c->rsize <= mrb->c->ci->ridx) {
-            mrb->c->rsize = UINT16_MAX;
-          }
-        }
-        mrb->c->rescue = (uint16_t*)mrb_realloc(mrb, mrb->c->rescue, sizeof(uint16_t)*mrb->c->rsize);
-      }
-      /* push rescue stack */
-      mrb->c->rescue[mrb->c->ci->ridx++] = a;
-      NEXT;
-    }
-
     CASE(OP_EXCEPT, B) {
       mrb_value exc;
 
@@ -1300,11 +1277,6 @@ RETRY_TRY_BLOCK:
       NEXT;
     }
 
-    CASE(OP_POPERR, B) {
-      mrb->c->ci->ridx -= a;
-      NEXT;
-    }
-
     CASE(OP_RAISEIF, B) {
       mrb_value exc = regs[a];
       if (mrb_break_p(exc)) {
@@ -1318,64 +1290,6 @@ RETRY_TRY_BLOCK:
       NEXT;
     }
 
-    CASE(OP_EPUSH, B) {
-      struct RProc *p;
-
-      p = mrb_closure_new(mrb, irep->reps[a]);
-      /* check ensure stack */
-      if (mrb->c->eidx == UINT16_MAX-1) {
-        mrb_value exc = mrb_exc_new_str_lit(mrb, E_RUNTIME_ERROR, "too many nested ensures");
-        mrb_exc_set(mrb, exc);
-        goto L_RAISE;
-      }
-      /* expand ensure stack */
-      if (mrb->c->esize <= mrb->c->eidx+1) {
-        if (mrb->c->esize == 0) mrb->c->esize = ENSURE_STACK_INIT_SIZE;
-        else {
-          mrb->c->esize *= 2;
-          if (mrb->c->esize <= mrb->c->eidx) {
-            mrb->c->esize = UINT16_MAX;
-          }
-        }
-        mrb->c->ensure = (struct RProc**)mrb_realloc(mrb, mrb->c->ensure, sizeof(struct RProc*)*mrb->c->esize);
-      }
-      /* push ensure stack */
-      mrb->c->ensure[mrb->c->eidx++] = p;
-      mrb->c->ensure[mrb->c->eidx] = NULL;
-      mrb_gc_arena_restore(mrb, ai);
-      NEXT;
-    }
-
-    CASE(OP_EPOP, B) {
-      mrb_callinfo *ci = mrb->c->ci;
-      unsigned int n, epos = ci->epos;
-      mrb_value self = regs[0];
-      struct RClass *target_class = ci->target_class;
-
-      if (mrb->c->eidx <= epos) {
-        NEXT;
-      }
-
-      if (a > (int)mrb->c->eidx - epos)
-        a = mrb->c->eidx - epos;
-      for (n=0; n<a; n++) {
-        int nregs = irep->nregs;
-
-        proc = mrb->c->ensure[epos+n];
-        mrb->c->ensure[epos+n] = NULL;
-        if (proc == NULL) continue;
-        irep = proc->body.irep;
-        ci = cipush(mrb, pc, nregs, nregs, target_class, proc, ci->mid, 0);
-        mrb_stack_extend(mrb, irep->nregs);
-        regs[0] = self;
-        pc = irep->iseq;
-      }
-      pool = irep->pool;
-      syms = irep->syms;
-      mrb->c->eidx = epos;
-      JUMP;
-    }
-
     CASE(OP_SENDV, BB) {
       c = CALL_MAXARGS;
       goto L_SEND;