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[Bug tree-optimization/53922] [4.6/4.7/4.8 Regression] VRP: semantic conflict between range_includes_zero_p and value_inside_range
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 13 Jul 2012 11:21:45 +0000
- Subject: [Bug tree-optimization/53922] [4.6/4.7/4.8 Regression] VRP: semantic conflict between range_includes_zero_p and value_inside_range
- Auto-submitted: auto-generated
- References: <bug-53922-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53922
--- Comment #7 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-13 11:21:45 UTC ---
Author: rguenth
Date: Fri Jul 13 11:21:39 2012
New Revision: 189461
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189461
Log:
2012-07-13 Richard Guenther <rguenther@suse.de>
PR tree-optimization/53922
* tree-vrp.c (value_inside_range): Change prototype to take
min/max instead of value-range.
(range_includes_zero_p): Likewise. Return the result from
value_inside_range.
(extract_range_from_binary_expr_1): Adjust to handle dont-know
return value from range_includes_zero_p.
(extract_range_from_unary_expr_1): Likewise.
(compare_range_with_value): Likewise.
(vrp_meet_1): Likewise.
* gcc.dg/torture/pr53922.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr53922.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vrp.c