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re PR target/35366 (gfortran.dg/equiv_7.f90 fails with -m64 -Os on powerpc-apple-darwin9)

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PR target/35366
	* expr.c (expand_expr_addr_expr_1): If EXP needs bigger alignment
	than INNER and INNER is a constant, forcibly align INNER as much
	as needed.

From-SVN: r141782
This commit is contained in:
Jakub Jelinek 2008-11-12 09:16:12 +01:00 • committed by Jakub Jelinek
parent 0d6872cba7
commit 8ebec1a5dd
2 changed files with 17 additions and 0 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2008-11-12 Jakub Jelinek <jakub@redhat.com>
PR target/35366
* expr.c (expand_expr_addr_expr_1): If EXP needs bigger alignment
than INNER and INNER is a constant, forcibly align INNER as much
as needed.
2008-11-11 Richard Sandiford <rdsandiford@googlemail.com>
* cse.c (fold_rtx): Remove redundant gen_rtx_CONST.

10
gcc/expr.c
View file

@ -6862,6 +6862,16 @@ expand_expr_addr_expr_1 (tree exp, rtx target, enum machine_mode tmode,
gcc_assert (inner != exp);
subtarget = offset || bitpos ? NULL_RTX : target;
/* For VIEW_CONVERT_EXPR, where the outer alignment is bigger than
inner alignment, force the inner to be sufficiently aligned. */
if (CONSTANT_CLASS_P (inner)
&& TYPE_ALIGN (TREE_TYPE (inner)) < TYPE_ALIGN (TREE_TYPE (exp)))
{
inner = copy_node (inner);
TREE_TYPE (inner) = copy_node (TREE_TYPE (inner));
TYPE_ALIGN (TREE_TYPE (inner)) = TYPE_ALIGN (TREE_TYPE (exp));
TYPE_USER_ALIGN (TREE_TYPE (inner)) = 1;
}
result = expand_expr_addr_expr_1 (inner, subtarget, tmode, modifier);
if (offset)