From: Kazu Hirata <kazu@cs.umass.edu>
Date: Mon, 18 Oct 2004 21:18:23 +0000 (+0000)
Subject: expr.c (expand_expr_real_1): Don't request a value to expand_assignment.
X-Git-Tag: releases/gcc-4.0.0~3926
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=df9af2bb6b3d8fc40aa578ee5251c6cf0c0debef;p=thirdparty%2Fgcc.git

expr.c (expand_expr_real_1): Don't request a value to expand_assignment.

	* expr.c (expand_expr_real_1) [MODIFY_EXPR]: Don't request a
	value to expand_assignment.

From-SVN: r89245
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fb1fe2f10e8b..ac8efa95bb34 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-10-18  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* expr.c (expand_expr_real_1) [MODIFY_EXPR]: Don't request a
+	value to expand_assignment.
+
 2004-10-18  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* tree-cfg.c (cleanup_tree_cfg): Don't iterate on
diff --git a/gcc/expr.c b/gcc/expr.c
index 459d3b35372c..358a634eb859 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -8069,6 +8069,8 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
 
 	temp = 0;
 
+	gcc_assert (ignore);
+
 	/* Check for |= or &= of a bitfield of size one into another bitfield
 	   of size 1.  In this case, (unless we need the result of the
 	   assignment) we can do this more efficiently with a
@@ -8077,8 +8079,7 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
 	   ??? At this point, we can't get a BIT_FIELD_REF here.  But if
 	   things change so we do, this code should be enhanced to
 	   support it.  */
-	if (ignore
-	    && TREE_CODE (lhs) == COMPONENT_REF
+	if (TREE_CODE (lhs) == COMPONENT_REF
 	    && (TREE_CODE (rhs) == BIT_IOR_EXPR
 		|| TREE_CODE (rhs) == BIT_AND_EXPR)
 	    && TREE_OPERAND (rhs, 0) == lhs
@@ -8101,7 +8102,7 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
 	    return const0_rtx;
 	  }
 
-	temp = expand_assignment (lhs, rhs, ! ignore);
+	temp = expand_assignment (lhs, rhs, 0);
 
 	return temp;
       }