Generalize -(-X) a little
commit48eb107eeb99c91b13aeff7284076252b6633d8c
authorglisse <glisse@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 3 Nov 2017 16:23:57 +0000 (3 16:23 +0000)
committerglisse <glisse@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 3 Nov 2017 16:23:57 +0000 (3 16:23 +0000)
tree1692ab4ed30efaec1e493cbcb059766808ce286a
parent801c4b5df181f0d11a76896316ef53db16f9468a
Generalize -(-X) a little

2017-11-03  Marc Glisse  <marc.glisse@inria.fr>

gcc/
* match.pd (-(-A)): Rewrite.

gcc/testsuite/
* gcc.dg/tree-ssa/negneg-1.c: New file.
* gcc.dg/tree-ssa/negneg-2.c: Likewise.
* gcc.dg/tree-ssa/negneg-3.c: Likewise.
* gcc.dg/tree-ssa/negneg-4.c: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@254382 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog
gcc/match.pd
gcc/testsuite/ChangeLog
gcc/testsuite/gcc.dg/tree-ssa/negneg-1.c [new file with mode: 0644]
gcc/testsuite/gcc.dg/tree-ssa/negneg-2.c [new file with mode: 0644]
gcc/testsuite/gcc.dg/tree-ssa/negneg-3.c [new file with mode: 0644]
gcc/testsuite/gcc.dg/tree-ssa/negneg-4.c [new file with mode: 0644]