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[Bug tree-optimization/43528] ICE: in tree_low_cst, at tree.c:6198 with -mms-bitfields at x86_64-linux
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 26 Mar 2010 10:05:55 -0000
- Subject: [Bug tree-optimization/43528] ICE: in tree_low_cst, at tree.c:6198 with -mms-bitfields at x86_64-linux
- References: <bug-43528-14164@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from rguenth at gcc dot gnu dot org 2010-03-26 10:05 -------
(In reply to comment #2)
> There is a mismatch in a guard expression. Following patch fixes ICE for me
> (I'm not sure if it makes any sense, though):
>
> Index: stor-layout.c
> ===================================================================
> --- stor-layout.c (revision 157742)
> +++ stor-layout.c (working copy)
> @@ -1346,8 +1346,8 @@ place_field (record_layout_info rli, tre
> until we see a bitfield (and come by here again) we just skip
> calculating it. */
> if (DECL_SIZE (field) != NULL
> - && host_integerp (TYPE_SIZE (TREE_TYPE (field)), 0)
> - && host_integerp (DECL_SIZE (field), 0))
> + && host_integerp (TYPE_SIZE (TREE_TYPE (field)), 1)
> + && host_integerp (DECL_SIZE (field), 1))
> {
> HOST_WIDE_INT bitsize = tree_low_cst (DECL_SIZE (field), 1);
> HOST_WIDE_INT typesize
>
The patch is pre-approved if it passes bootstrap & regtest.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43528