From: Eric Botcazou <ebotcazou@libertysurf.fr>
Date: Tue, 29 Oct 2002 14:20:16 +0000 (+0100)
Subject: expr.c (expand_expr): Don't use simplify_binary_operation; check for zero operands... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6e7727ebee6ef407d7ec9cd801b1920921d123f7;p=gcc.git

expr.c (expand_expr): Don't use simplify_binary_operation; check for zero operands explicitly.

        * expr.c (expand_expr) [PLUS]: Don't use simplify_binary_operation;
        check for zero operands explicitly.

From-SVN: r58623
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8fc27beda23..3c7f639ff9f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2002-10-29  Eric Botcazou  <ebotcazou@libertysurf.fr>
+
+        * expr.c (expand_expr) [PLUS]: Don't use simplify_binary_operation;
+        check for zero operands explicitly.
+
 2002-10-29  Richard Sandiford  <rsandifo@redhat.com>
 
 	* config/mips/mips.md (extv, extzv, insv): Set size of referenced
diff --git a/gcc/expr.c b/gcc/expr.c
index 5a14d7ee44b..b9c8fb0b962 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -7912,9 +7912,10 @@ expand_expr (exp, target, tmode, modifier)
 	{
 	  op0 = expand_expr (TREE_OPERAND (exp, 0), subtarget, VOIDmode, 0);
 	  op1 = expand_expr (TREE_OPERAND (exp, 1), NULL_RTX, VOIDmode, 0);
-	  temp = simplify_binary_operation (PLUS, mode, op0, op1);
-	  if (temp)
-	    return temp;
+	  if (op0 == const0_rtx)
+	    return op1;
+	  if (op1 == const0_rtx)
+	    return op0;
 	  goto binop2;
 	}