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r249149 - in /trunk/gcc: ChangeLog fold-const.c...

From: chefmax at gcc dot gnu dot org
To: gcc-cvs at gcc dot gnu dot org
Date: Tue, 13 Jun 2017 11:13:53 -0000
Subject: r249149 - in /trunk/gcc: ChangeLog fold-const.c...

Author: chefmax
Date: Tue Jun 13 11:13:52 2017
New Revision: 249149

URL: https://gcc.gnu.org/viewcvs?rev=249149&root=gcc&view=rev
Log:
2017-06-13  Yury Gribov  <tetra2005@gmail.com>

gcc/
	PR tree-optimization/67328
	* fold-const.c (maskable_range_p): New function.
	(build_range_check): Generate bittests if possible.

gcc/testsuite/
	PR tree-optimization/67328
	* c-c++-common/fold-masked-cmp-1.c: New test.
	* c-c++-common/fold-masked-cmp-2.c: Likewise.
	* gcc.dg/pr46309.c: Fix pattern.
	* gcc.dg/pr46309-2.c: Likewise.

Added:
    trunk/gcc/testsuite/c-c++-common/fold-masked-cmp-1.c
    trunk/gcc/testsuite/c-c++-common/fold-masked-cmp-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/pr46309-2.c
    trunk/gcc/testsuite/gcc.dg/pr46309.c

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