Backports for GCC 7 branch

[Martin Liška]

Hello.

I'm going to install following backports. Last patch fixes wrongly backported patch
in gcc/gimple-ssa-strength-reduction.c.

Patches can bootstrap on ppc64le-redhat-linux and survives regression tests.

Martin
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0008-Fix-backport.patch
Type: text/x-patch
Size: 1051 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20170915/75120acf/attachment.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0007-Backport-r252024.patch
Type: text/x-patch
Size: 986 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20170915/75120acf/attachment-0001.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0006-Backport-r251530.patch
Type: text/x-patch
Size: 4162 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20170915/75120acf/attachment-0002.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0005-Backport-r251406.patch
Type: text/x-patch
Size: 960 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20170915/75120acf/attachment-0003.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0004-Backport-r251020.patch
Type: text/x-patch
Size: 2121 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20170915/75120acf/attachment-0004.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0003-Backport-r250951.patch
Type: text/x-patch
Size: 2032 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20170915/75120acf/attachment-0005.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0002-Backport-r250336.patch
Type: text/x-patch
Size: 1247 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20170915/75120acf/attachment-0006.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-Backport-r249735.patch
Type: text/x-patch
Size: 3655 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20170915/75120acf/attachment-0007.bin>