From: Richard Kenner <kenner@gcc.gnu.org>
Date: Sun, 6 Mar 1994 21:16:08 +0000 (-0500)
Subject: (stupid_mark_refs): If setting reg_where_dead, set regs_live so we
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=63cc239cc6f13c189205760de8768dd3689bfa60;p=gcc.git

(stupid_mark_refs): If setting reg_where_dead, set regs_live so we
don't later clobber it.

From-SVN: r6705
---

diff --git a/gcc/stupid.c b/gcc/stupid.c
index f9179f50098..aeee0d09204 100644
--- a/gcc/stupid.c
+++ b/gcc/stupid.c
@@ -1,5 +1,5 @@
 /* Dummy data flow analysis for GNU compiler in nonoptimizing mode.
-   Copyright (C) 1987, 1991 Free Software Foundation, Inc.
+   Copyright (C) 1987, 1991, 1994 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -476,7 +476,10 @@ stupid_mark_refs (x, insn)
 		 insn so that it will conflict with any other outputs of
 		 this insn.  */
 	      if (reg_where_dead[regno] < where_born + 2)
-		reg_where_dead[regno] = where_born + 2;
+		{
+		  reg_where_dead[regno] = where_born + 2;
+		  regs_live[regno] = 1;
+		}
 
 	      /* Count the refs of this reg.  */
 	      reg_n_refs[regno]++;