From: Jan Hubicka <jh@suse.cz>
Date: Fri, 15 Jun 2001 17:44:56 +0000 (+0200)
Subject: * optabs.c (expand_twoval_binop): Avoid undefined behaviour.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=76791f3d9585c62d1705533e4301e0199358d49b;p=gcc.git

* optabs.c (expand_twoval_binop): Avoid undefined behaviour.

From-SVN: r43403
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e7f08e8b9af..eef09c8d9d5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+Fri Jun 15 19:35:38 CEST 2001 Jan Hubicka  <jh@suse.cz>
+
+	* optabs.c (expand_twoval_binop): Avoid undefined behaviour.
+
 2001-06-15  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
 
 	* doc/install.texi (Specific, alpha*-*-*): Fixed Tru64 UNIX
diff --git a/gcc/optabs.c b/gcc/optabs.c
index 581fb9b95b2..0e135af12a0 100644
--- a/gcc/optabs.c
+++ b/gcc/optabs.c
@@ -1992,12 +1992,10 @@ expand_twoval_binop (binoptab, op0, op1, targ0, targ1, unsignedp)
 	    {
 	      register rtx t0 = gen_reg_rtx (wider_mode);
 	      register rtx t1 = gen_reg_rtx (wider_mode);
+	      rtx cop0 = convert_modes (wider_mode, mode, op0, unsignedp);
+	      rtx cop1 = convert_modes (wider_mode, mode, op1, unsignedp);
 
-	      if (expand_twoval_binop (binoptab,
-				       convert_modes (wider_mode, mode, op0,
-						      unsignedp),
-				       convert_modes (wider_mode, mode, op1,
-						      unsignedp),
+	      if (expand_twoval_binop (binoptab, cop0, cop1,
 				       t0, t1, unsignedp))
 		{
 		  convert_move (targ0, t0, unsignedp);