This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
[PATCH] Fix MEM_REF offset calculation in dr_analyze_innermost
- From: Richard Guenther <rguenther at suse dot de>
- To: gcc-patches at gcc dot gnu dot org
- Date: Thu, 31 May 2012 13:04:16 +0200 (CEST)
- Subject: [PATCH] Fix MEM_REF offset calculation in dr_analyze_innermost
Pointed out by people working on targets with ptr-size != sizetype size.
Bootstrapped and tested on x86_64-unknown-linux-gnu, applied.
Richard.
2012-05-31 Richard Guenther <rguenther@suse.de>
* tree-data-ref.c (dr_analyze_innermost): Properly convert
the MEM_REF offset to sizetype.
Index: gcc/tree-data-ref.c
===================================================================
--- gcc/tree-data-ref.c (revision 188055)
+++ gcc/tree-data-ref.c (working copy)
@@ -755,13 +755,12 @@ dr_analyze_innermost (struct data_refere
{
if (!integer_zerop (TREE_OPERAND (base, 1)))
{
+ double_int moff = mem_ref_offset (base);
+ tree mofft = double_int_to_tree (sizetype, moff);
if (!poffset)
- {
- double_int moff = mem_ref_offset (base);
- poffset = double_int_to_tree (sizetype, moff);
- }
+ poffset = mofft;
else
- poffset = size_binop (PLUS_EXPR, poffset, TREE_OPERAND (base, 1));
+ poffset = size_binop (PLUS_EXPR, poffset, mofft);
}
base = TREE_OPERAND (base, 0);
}