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[Bug middle-end/57748] [4.8/4.9 Regression] ICE on ARM with -mfloat-abi=softfp -mfpu=neon
- From: "bernd.edlinger at hotmail dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 29 Jul 2013 20:49:14 +0000
- Subject: [Bug middle-end/57748] [4.8/4.9 Regression] ICE on ARM with -mfloat-abi=softfp -mfpu=neon
- Auto-submitted: auto-generated
- References: <bug-57748-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57748
--- Comment #6 from Bernd Edlinger <bernd.edlinger at hotmail dot de> ---
(In reply to Martin Jambor from comment #5)
> expand_assignment, offset as filled in get_inner_reference is the same,
> however get_object_alignment (tem) used to return 64, and now only returns
> 32 which then pushes us the wrong path which does not handle this case. So
> now I guess I should figure out why get_object_alignment thinks the
> alignment is so small...
hhmm..
set_ptr_info_alignment is always called with align=4,
and by the way, the crash goes away if I change this line
(but I cannot tell if the code is correct):
--- builtins.c.jj 2013-07-06 11:34:17.000000000 +0200
+++ builtins.c 2013-07-29 21:50:56.000000000 +0200
@@ -503,7 +503,7 @@ get_pointer_alignment_1 (tree exp, unsig
*bitposp = ptr_misalign * BITS_PER_UNIT;
*alignp = ptr_align * BITS_PER_UNIT;
/* We cannot really tell whether this result is an approximation. */
- return true;
+ return false;
}
else
{