From: Richard Kenner <kenner@gcc.gnu.org>
Date: Fri, 24 Jun 1994 18:43:36 +0000 (-0400)
Subject: (goto_block_pat): Ignore undefined label.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6d7d084a0a4169df80a94da1b9920cc19b965a10;p=gcc.git

(goto_block_pat): Ignore undefined label.

From-SVN: r7555
---

diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c
index 54e7de22970..dd30344db83 100644
--- a/gcc/reg-stack.c
+++ b/gcc/reg-stack.c
@@ -2750,6 +2750,8 @@ goto_block_pat (insn, regstack, pat)
     abort ();
 
   /* First, see if in fact anything needs to be done to the stack at all. */
+  if (INSN_UID (label) <= 0)
+    return;
 
   label_stack = &block_stack_in[BLOCK_NUM (label)];