From af6041f1d09fc39b65c66ecc87fc63b9caead280 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Thu, 15 Jun 2017 13:36:36 +0900
Subject: Ensure size of the stack in OP_CALL.

---
 src/vm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'src/vm.c')

diff --git a/src/vm.c b/src/vm.c
index 4b121cecb..5853ba9e2 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1434,14 +1434,13 @@ RETRY_TRY_BLOCK:
         pool = irep->pool;
         syms = irep->syms;
         ci->nregs = irep->nregs;
+        stack_extend(mrb, irep->nregs);
         if (ci->argc < 0) {
           if (irep->nregs > 3) {
-            stack_extend(mrb, irep->nregs);
             stack_clear(regs+3, irep->nregs-3);
           }
         }
         else if (ci->argc+2 < irep->nregs) {
-          stack_extend(mrb, irep->nregs);
           stack_clear(regs+ci->argc+2, irep->nregs-ci->argc-2);
         }
         if (m->env) {
-- 
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