From: rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 24 Jun 2004 05:21:27 +0000 (+0000)
Subject:         * gimplify.c (gimplify_compound_lval): Don't set ARRAY_REF or
X-Git-Tag: upstream/4.9.2~70320
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6780737f6e6b7d0648cccd70e28b465eedd18b7f;p=platform%2Fupstream%2Flinaro-gcc.git

    * gimplify.c (gimplify_compound_lval): Don't set ARRAY_REF or
        COMPONENT_REF variable fields unless they're non-constant.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83578 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9739978..37024fb 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-06-23  Richard Henderson  <rth@redhat.com>
+
+	* gimplify.c (gimplify_compound_lval): Don't set ARRAY_REF or
+	COMPONENT_REF variable fields unless they're non-constant.
+
 2004-06-23  Robert Millan  <robertmh@gnu.org>
 
 	* config.gcc: Merge kfreebsd*-gnu with linux* and add knetbsd*-gnu.
diff --git a/gcc/gimplify.c b/gcc/gimplify.c
index a4baa1e..480b8eb 100644
--- a/gcc/gimplify.c
+++ b/gcc/gimplify.c
@@ -1948,9 +1948,10 @@ gimplify_compound_lval (tree *expr_p, tree *pre_p,
 	     gimplified.  */
 	  if (!TREE_OPERAND (t, 2))
 	    {
-	      TREE_OPERAND (t, 2) = unshare_expr (array_ref_low_bound (t));
-	      if (!is_gimple_min_invariant (TREE_OPERAND (t, 2)))
+	      tree low = unshare_expr (array_ref_low_bound (t));
+	      if (!is_gimple_min_invariant (low))
 		{
+	          TREE_OPERAND (t, 2) = low;
 		  tret = gimplify_expr (&TREE_OPERAND (t, 2), pre_p, post_p,
 					is_gimple_tmp_var, fb_rvalue);
 		  ret = MIN (ret, tret);
@@ -1967,9 +1968,9 @@ gimplify_compound_lval (tree *expr_p, tree *pre_p,
 		 type (above).  */
 	      elmt_size = size_binop (EXACT_DIV_EXPR, elmt_size, factor);
 
-	      TREE_OPERAND (t, 3) = elmt_size;
-	      if (!is_gimple_min_invariant (TREE_OPERAND (t, 3)))
+	      if (!is_gimple_min_invariant (elmt_size))
 		{
+	          TREE_OPERAND (t, 3) = elmt_size;
 		  tret = gimplify_expr (&TREE_OPERAND (t, 3), pre_p, post_p,
 					is_gimple_tmp_var, fb_rvalue);
 		  ret = MIN (ret, tret);
@@ -1989,9 +1990,9 @@ gimplify_compound_lval (tree *expr_p, tree *pre_p,
 	      /* Divide the offset by its alignment.  */
 	      offset = size_binop (EXACT_DIV_EXPR, offset, factor);
 
-	      TREE_OPERAND (t, 2) = offset;
-	      if (!is_gimple_min_invariant (TREE_OPERAND (t, 2)))
+	      if (!is_gimple_min_invariant (offset))
 		{
+	          TREE_OPERAND (t, 2) = offset;
 		  tret = gimplify_expr (&TREE_OPERAND (t, 2), pre_p, post_p,
 					is_gimple_tmp_var, fb_rvalue);
 		  ret = MIN (ret, tret);