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PR bootstrap/66638
* tree-ssa-loop-niter.c (loop_exits_before_overflow):
Skip if assertion failed. Remove assertion itself.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@225008
138bc75d-0d04-0410-961f-82ee72b054a4
Bug: 26224556
Change-Id: I2fa31bfe44978659a554a413c64d796b357338b5
Signed-off-by: Than McIntosh <thanm@google.com>
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commit 05032b10839cf0498c992c819bf2358e86c22bb0
Author: amker <amker@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue Jun 2 10:19:18 2015 +0000
PR tree-optimization/48052
* cfgloop.h (struct control_iv): New.
(struct loop): New field control_ivs.
* tree-ssa-loop-niter.c : Include "stor-layout.h".
(number_of_iterations_lt): Set no_overflow information.
(number_of_iterations_exit): Init control iv in niter struct.
(record_control_iv): New.
(estimate_numbers_of_iterations_loop): Call record_control_iv.
(loop_exits_before_overflow): New. Interface factored out of
scev_probably_wraps_p.
(scev_probably_wraps_p): Factor loop niter related code into
loop_exits_before_overflow.
(free_numbers_of_iterations_estimates_loop): Free control ivs.
* tree-ssa-loop-niter.h (free_loop_control_ivs): New.
gcc/testsuite/ChangeLog
PR tree-optimization/48052
* gcc.dg/tree-ssa/scev-8.c: New.
* gcc.dg/tree-ssa/scev-9.c: New.
* gcc.dg/tree-ssa/scev-10.c: New.
* gcc.dg/vect/pr48052.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@224020 138bc75d-0d04-0410-961f-82ee72b054a4
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Change-Id: I3d6f06fc613c8f8b6a82143dc44b7338483aac5d
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2015-01-28 Ilya Enkovich <ilya.enkovich@intel.com>
PR tree-optimization/64277
* tree-ssa-loop-niter.c (record_nonwrapping_iv): Use base
range info when possible to refine estimation.
2015-01-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/56273
PR tree-optimization/59124
PR tree-optimization/64277
* tree-vrp.c (vrp_finalize): Emit array-bound warnings only
from the first VRP pass.
* g++.dg/warn/Warray-bounds-6.C: New testcase.
* gcc.dg/Warray-bounds-12.c: Likewise.
* gcc.dg/Warray-bounds-13.c: Likewise.
Change-Id: I175b420a4c8150ecf986d477e4c51cbbff276c82
Signed-off-by: Alexander Ivchenko <alexander.ivchenko@intel.com>
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Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
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