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

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

From-SVN: r83578
This commit is contained in:
Richard Henderson 2004-06-23 22:21:27 -07:00 committed by Richard Henderson
parent cfafe9734d
commit a7cc468aa3
2 changed files with 12 additions and 6 deletions
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5
gcc/ChangeLog
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@ -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.

13
gcc/gimplify.c
View File

@ -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);