loop-3 failure

[Geoff Keating <geoffk at geoffk dot org>]

Hi Richard,

Your patch,

------------------------------------------------------------------------
r129727 | rguenth | 2007-10-29 11:27:38 -0700 (Mon, 29 Oct 2007) | 12  
lines

2007-10-29  Richard Guenther  <rguenther@suse.de>

	* tree-flow-inline.h (get_subvar_at): Use binary search.
	(get_first_overlapping_subvar): New function to binary search
	for the first overlapping subvar.
	* tree-ssa-operands.c (add_vars_for_offset): Strip down to
	just handle adding subvars for a pointed-to subvar.  Optimize
	and use get_first_overlapping_subvar.
	(add_vars_for_bitmap): Fold into single caller.
	(add_virtual_operand): Streamline, inherit add_vars_for_bitmap
	and non pointed-to bits of add_vars_for_offset.

appears to be causing loop-3.c to fail on i686-linux.  See

<http://gcc.gnu.org/ml/gcc-testresults/2007-10/msg01335.html>
<http://gcc.gnu.org/ml/gcc-testresults/2007-10/msg01328.html>.

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