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r218019 - in /trunk/gcc: ChangeLog gimple-fold....
- From: rguenth at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Mon, 24 Nov 2014 14:07:18 -0000
- Subject: r218019 - in /trunk/gcc: ChangeLog gimple-fold....
Author: rguenth
Date: Mon Nov 24 14:07:18 2014
New Revision: 218019
URL: https://gcc.gnu.org/viewcvs?rev=218019&root=gcc&view=rev
Log:
2014-11-24 Richard Biener <rguenther@suse.de>
PR tree-optimization/63679
* tree-ssa-sccvn.c: Include ipa-ref.h, plugin-api.h and cgraph.h.
(copy_reference_ops_from_ref): Fix non-constant ADDR_EXPR case
to properly leave off at -1.
(fully_constant_vn_reference_p): Generalize folding from
constant initializers.
(vn_reference_lookup_3): When looking through aggregate copies
handle offsetted reads and try simplifying the result to
a constant.
* gimple-fold.h (fold_ctor_reference): Export.
* gimple-fold.c (fold_ctor_reference): Likewise.
* gcc.dg/tree-ssa/ssa-fre-42.c: New testcase.
* gcc.dg/tree-ssa/20030807-5.c: Avoid folding read from global to zero.
* gcc.target/i386/ssetype-1.c: Likewise.
* gcc.target/i386/ssetype-3.c: Likewise.
* gcc.target/i386/ssetype-5.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-42.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/gimple-fold.c
trunk/gcc/gimple-fold.h
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/tree-ssa/20030807-5.c
trunk/gcc/testsuite/gcc.target/i386/ssetype-1.c
trunk/gcc/testsuite/gcc.target/i386/ssetype-3.c
trunk/gcc/testsuite/gcc.target/i386/ssetype-5.c
trunk/gcc/tree-ssa-sccvn.c