From f85c50543b4ec93f327b9b064ea193493b046766 Mon Sep 17 00:00:00 2001 From: "Yukihiro \"Matz\" Matsumoto" Date: Mon, 20 Sep 2021 10:35:01 +0900 Subject: codegen.c (mrb_last_insn): no previous instruction on top. --- mrbgems/mruby-compiler/core/codegen.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'mrbgems/mruby-compiler/core/codegen.c') diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c index 48543bd7e..380cd9317 100644 --- a/mrbgems/mruby-compiler/core/codegen.c +++ b/mrbgems/mruby-compiler/core/codegen.c @@ -467,6 +467,10 @@ mrb_prev_pc(codegen_scope *s, const mrb_code *pc) static struct mrb_insn_data mrb_last_insn(codegen_scope *s) { + if (s->pc == 0) { + struct mrb_insn_data data = { OP_NOP, 0 }; + return data; + } return mrb_decode_insn(&s->iseq[s->lastpc]); } -- cgit v1.2.3