From b4a001406fd67c17eeed3ca4869ca5c75a47d00f Mon Sep 17 00:00:00 2001
From: Kolan Sh <mecareful@gmail.com>
Date: Fri, 25 Oct 2013 08:10:41 +0400
Subject: [PATCH] Graphite/LTO/OpenMP optimizations added. Note: You can add
 -flto=n to CFLAGS/CXXFLAGS/LDFLAGS where n = number of CPUs.

---
 .../amd64/13.0/backbone/desktop/make.defaults |   9 ++
 .../backbone/desktop/package.accept_keywords  |   4 +-
 .../amd64/13.0/backbone/desktop/package.use   |   1 +
 .../13.0/backbone/desktop/profile.bashrc      | 108 ++++++++++++++++++
 4 files changed, 121 insertions(+), 1 deletion(-)
 create mode 100644 profiles/default/linux/amd64/13.0/backbone/desktop/profile.bashrc

diff --git a/profiles/default/linux/amd64/13.0/backbone/desktop/make.defaults b/profiles/default/linux/amd64/13.0/backbone/desktop/make.defaults
index 95b941fb..e866409d 100644
--- a/profiles/default/linux/amd64/13.0/backbone/desktop/make.defaults
+++ b/profiles/default/linux/amd64/13.0/backbone/desktop/make.defaults
@@ -2,6 +2,15 @@ CFLAGS="-O2 -pipe -march=native"
 CXXFLAGS="${CFLAGS}"
 LDFLAGS="-Wl,-O1 -Wl,--as-needed"
 
+#### LTO/Graphite/OpenMP ####
+TMP_GRAPHITE="-floop-interchange -ftree-loop-distribution -floop-strip-mine -floop-block"
+TMP_COMMON_CLDFLAGS="-flto=4 ${TMP_GRAPHITE} -ftree-vectorize -fopenmp -floop-parallelize-all"
+CFLAGS="${CFLAGS} ${TMP_COMMON_CLDFLAGS}"
+CXXFLAGS="${CFLAGS}"
+LDFLAGS="${LDFLAGS} ${TMP_COMMON_CLDFLAGS}"
+USE="${USE} graphite"
+#############################
+
 CHOST="x86_64-pc-linux-gnu"
 CBUILD="x86_64-pc-linux-gnu"
 MAKEOPTS="-j2"
diff --git a/profiles/default/linux/amd64/13.0/backbone/desktop/package.accept_keywords b/profiles/default/linux/amd64/13.0/backbone/desktop/package.accept_keywords
index 26ec53d4..56c1fb55 100644
--- a/profiles/default/linux/amd64/13.0/backbone/desktop/package.accept_keywords
+++ b/profiles/default/linux/amd64/13.0/backbone/desktop/package.accept_keywords
@@ -64,7 +64,9 @@ dev-java/jinput ~amd64
 <dev-games/irrlicht-1.9 ~amd64
 dev-lang/spidermonkey ~amd64
 dev-lang/vala ~amd64
+dev-libs/cloog ~amd64
 dev-libs/gnulib ~x64-freebsd
+dev-libs/isl ~amd64
 dev-libs/jthread ~amd64
 dev-libs/libpipeline ~amd64
 dev-libs/libgee ~amd64
@@ -231,7 +233,7 @@ sys-cluster/nova ~amd64
 sys-cluster/quantum ~amd64
 sys-devel/clang ~amd64
 sys-devel/crossdev ~amd64
-<sys-devel/gcc-4.8 ~amd64
+<sys-devel/gcc-4.9 ~amd64
 sys-devel/llvm ~amd64
 sys-devel/prelink ~amd64
 sys-firmware/amd-ucode ~amd64
diff --git a/profiles/default/linux/amd64/13.0/backbone/desktop/package.use b/profiles/default/linux/amd64/13.0/backbone/desktop/package.use
index a7e2905c..66ba7096 100644
--- a/profiles/default/linux/amd64/13.0/backbone/desktop/package.use
+++ b/profiles/default/linux/amd64/13.0/backbone/desktop/package.use
@@ -107,6 +107,7 @@ sys-apps/util-linux static-libs tty-helpers
 sys-boot/grub device-mapper
 sys-block/gparted fat ntfs
 sys-block/parted device-mapper
+sys-devel/gcc graphite lto
 sys-devel/llvm clang
 sys-fs/aufs3 kernel-patch ramfs
 sys-fs/lvm2 static-libs
diff --git a/profiles/default/linux/amd64/13.0/backbone/desktop/profile.bashrc b/profiles/default/linux/amd64/13.0/backbone/desktop/profile.bashrc
new file mode 100644
index 00000000..96bd3555
--- /dev/null
+++ b/profiles/default/linux/amd64/13.0/backbone/desktop/profile.bashrc
@@ -0,0 +1,108 @@
+# no-lto
+if [[ ${CATEGORY}/${PN} = sys-apps/sandbox ]] \
+|| [[ ${CATEGORY}/${PN} = sys-apps/sysvinit ]] \
+|| [[ ${CATEGORY}/${PN} = dev-lang/perl ]] \
+|| [[ ${CATEGORY}/${PN} = sys-apps/gawk ]] \
+|| [[ ${CATEGORY}/${PN} = sys-apps/coreutils ]] \
+|| [[ ${CATEGORY}/${PN} = dev-libs/elfutils ]] \
+|| [[ ${CATEGORY}/${PN} = sys-apps/shadow ]] \
+|| [[ ${CATEGORY}/${PN} = dev-lang/python]] \
+|| [[ ${CATEGORY}/${PN} = dev-libs/glib ]] \
+|| [[ ${CATEGORY}/${PN} = sys-fs/e2fsprogs ]] \
+|| [[ ${CATEGORY}/${PN} = net-misc/openssh ]] \
+|| [[ ${CATEGORY}/${PN} = sys-apps/hdparm ]] \
+|| [[ ${CATEGORY}/${PN} = sys-apps/hwinfo ]] \
+|| [[ ${CATEGORY}/${PN} = media-libs/alsa-lib ]] \
+|| [[ ${CATEGORY}/${PN} = dev-util/valgrind ]] \
+|| [[ ${CATEGORY}/${PN} = sys-fs/mtools ]] \
+|| [[ ${CATEGORY}/${PN} = dev-libs/boost ]] \
+|| [[ ${CATEGORY}/${PN} = app-text/rarian ]] \
+|| [[ ${CATEGORY}/${PN} = net-analyzer/nmap ]] \
+|| [[ ${CATEGORY}/${PN} = sys-apps/pciutils ]] \
+|| [[ ${CATEGORY}/${PN} = sys-devel/distcc ]] \
+|| [[ ${CATEGORY}/${PN} = media-libs/libcdr ]] \
+|| [[ ${CATEGORY}/${PN} = media-libs/libvisio ]] \
+|| [[ ${CATEGORY}/${PN} = sys-devel/llvm ]] \
+|| [[ ${CATEGORY}/${PN} = app-admin/sudo ]] \
+|| [[ ${CATEGORY}/${PN} = x11-base/xorg-server ]] \
+|| [[ ${CATEGORY}/${PN} = sys-power/upower ]] \
+|| [[ ${CATEGORY}/${PN} = dev-qt/qtdeclarative ]] \
+|| [[ ${CATEGORY}/${PN} = media-libs/mesa ]] \
+|| [[ ${CATEGORY}/${PN}/${PV} = dev-lang/spidermonkey-1.8.5 ]] \
+|| [[ ${CATEGORY}/${PN} = games-action/minetest ]] \
+|| [[ ${CATEGORY}/${PN} = app-emulation/wine ]] \
+|| [[ ${CATEGORY}/${PN} = app-emulation/virtualbox ]] \
+|| [[ ${CATEGORY}/${PN} = media-video/ffmpeg ]] \
+|| [[ ${CATEGORY}/${PN} = x11-libs/wxGTK ]] \
+|| [[ ${CATEGORY}/${PN} = www-client/firefox ]] \
+|| [[ ${CATEGORY}/${PN} = mail-client/thunderbird ]] \
+|| [[ ${CATEGORY}/${PN} = dev-tex/luatex ]] \
+|| [[ ${CATEGORY}/${PN} = dev-python/notify-python ]] \
+|| [[ ${CATEGORY}/${PN} = media-plugins/audacious-plugins ]] \
+|| [[ ${CATEGORY}/${PN} = media-video/avidemux ]] \
+|| [[ ${CATEGORY}/${PN} = media-video/mplayer2 ]] \
+|| [[ ${CATEGORY}/${PN} = media-libs/avidemux-plugins ]] \
+|| [[ ${CATEGORY}/${PN} = net-p2p/eiskaltdcpp ]] \
+|| [[ ${CATEGORY}/${PN} = dev-qt/qtwebkit ]] \
+|| [[ ${CATEGORY}/${PN} = net-libs/webkit-gtk ]] \
+|| [[ ${CATEGORY}/${PN} = media-libs/avidemux-core ]] \
+|| [[ ${CATEGORY}/${PN} = dev-libs/libaio ]] \ # Required by Qemu
+|| [[ ${CATEGORY}/${PN} = dev-games/simgear ]] \
+|| [[ ${CATEGORY}/${PN} = dev-qt/qtgui ]] \
+; then
+    CFLAGS="${CFLAGS} -fno-lto -fno-use-linker-plugin"
+    CXXFLAGS="${CXXFLAGS} -fno-lto -fno-use-linker-plugin"
+    LDFLAGS="${LDFLAGS} -fno-lto -fno-use-linker-plugin"
+fi
+
+# No parallelize-loops-all
+if [[ ${CATEGORY}/${PN} = dev-lang/perl ]] \
+|| [[ ${CATEGORY}/${PN} = sys-apps/gawk ]] \  # Internal error when emerging hyphen
+|| [[ ${CATEGORY}/${PN} = app-shells/bash ]] \
+|| [[ ${CATEGORY}/${PN} = sys-apps/groff ]] \
+|| [[ ${CATEGORY}/${PN} = media-libs/libogg ]] \
+|| [[ ${CATEGORY}/${PN} = dev-libs/openssl ]] \
+|| [[ ${CATEGORY}/${PN} = sys-libs/ncurses ]] \
+|| [[ ${CATEGORY}/${PN} = dev-libs/expat ]] \
+|| [[ ${CATEGORY}/${PN} = media-video/dirac ]] \
+|| [[ ${CATEGORY}/${PN} = dev-games/openscenegraph ]] \
+|| [[ ${CATEGORY}/${PN} = dev-vcs/subversion ]] \
+|| [[ ${CATEGORY}/${PN} = media-video/ffmpeg ]] \
+|| [[ ${CATEGORY}/${PN} = media-video/mjpegtools ]] \
+|| [[ ${CATEGORY}/${PN} = media-libs/gegl ]] \
+|| [[ ${CATEGORY}/${PN} = media-gfx/graphviz ]] \
+|| [[ ${CATEGORY}/${PN} = media-sound/audacious ]] \
+|| [[ ${CATEGORY}/${PN} = app-text/texlive-core ]] \
+|| [[ ${CATEGORY}/${PN} = media-video/mplayer2 ]] \
+|| [[ ${CATEGORY}/${PN} = media-video/vlc ]] \
+|| [[ ${CATEGORY}/${PN} = media-libs/avidemux-core ]] \
+|| [[ ${CATEGORY}/${PN} = games-fps/nexuiz ]] \
+|| [[ ${CATEGORY}/${PN} = sys-apps/dbus ]] \
+|| [[ ${CATEGORY}/${PN} = dev-qt/qtgui ]] \
+|| [[ ${CATEGORY}/${PN} = media-gfx/inkscape ]] \
+|| [[ ${CATEGORY}/${PN} = dev-libs/glib ]] \ # epiphany hangs (GObject)
+|| [[ ${CATEGORY}/${PN} = www-client/firefox ]] \
+; then
+    CFLAGS="${CFLAGS} -fno-loop-parallelize-all"
+    CXXFLAGS="${CXXFLAGS} -fno-loop-parallelize-all"
+    LDFLAGS="${LDFLAGS} -fno-loop-parallelize-all"
+fi
+
+# No OpenMP
+if [[ ${CATEGORY}/${PN} = sys-apps/busybox ]] \
+|| [[ ${CATEGORY}/${PN} = media-libs/mesa ]] \
+|| [[ ${CATEGORY}/${PN} = app-emulation/wine ]] \
+|| [[ ${CATEGORY}/${PN} = dev-db/sqlite ]] \ # Required to emerge avidemux-core
+; then
+    CFLAGS="${CFLAGS} -fno-openmp"
+    CXXFLAGS="${CFLAGS} -fno-openmp"
+    LDFLAGS="${LDFLAGS} -fno-openmp"
+fi
+
+# no-graphite
+if [[ ${CATEGORY}/${PN} = undefined/undefined ]] \
+; then
+    CFLAGS="${CFLAGS} -fno-loop-interchange -fno-tree-loop-distribution -fno-loop-strip-mine -fno-loop-block"
+    CXXFLAGS="${CXXFLAGS} -fno-loop-interchange -fno-tree-loop-distribution -fno-loop-strip-mine -fno-loop-block"
+    LDFLAGS="${LDFLAGS} -fno-loop-interchange -fno-tree-loop-distribution -fno-loop-strip-mine -fno-loop-block"
+fi