On Mon, Feb 15, 2016 at 03:44:02PM +0000, Christian Weisgerber wrote:
> On 2016-02-14, Matthieu Herrb <matth...@herrb.eu> wrote:
>
> > I've taken the list of individual optimisation from gcc(1) for both -O1
> > and -O2 and replaced -O2 by this in CFLAGS.
>
> gcc-local(1) is also worth a look...
>
> > +O2= ${O1} -fthread-jumps -fcrossjumping \
> > + -foptimize-sibling-calls -fcse-follow-jumps -fcse-skip-blocks \
> > + -fgcse -fgcse-lm -fexpensive-optimizations -frerun-cse-after-loop \
> > + -fcaller-saves -fpeephole2 -fschedule-insns -fschedule-insns2 \
> > + -fsched-interblock -fsched-spec -fregmove -fstrict-aliasing \
> > + -fstrict-overflow -fdelete-null-pointer-checks -freorder-blocks \
> > + -freorder-functions -falign-functions -falign-jumps -falign-loops \
> > + -falign-labels -ftree-vrp -ftree-pre
>
> Our -O2 does not include -fstrict-aliasing, -fstrict-overflow,
> -ftree-vrp.
>
Here's a new patch, taking your remarks and jsg's advice on
USER_CFLAGS into account. I can't test it so please someone with an
alpha apply it and try a full xenocara build (see release(8)) with
it. Thanks.
Index: share/mk/bsd.xorg.mk
===================================================================
RCS file: /cvs/OpenBSD/xenocara/share/mk/bsd.xorg.mk,v
retrieving revision 1.51
diff -u -p -u -r1.51 bsd.xorg.mk
--- share/mk/bsd.xorg.mk 24 Aug 2014 15:53:08 -0000 1.51
+++ share/mk/bsd.xorg.mk 17 Feb 2016 20:44:59 -0000
@@ -57,6 +57,7 @@ XENOCARA_PATH?= /bin:/sbin:/usr/bin:/usr
CONFIGURE_ENV= PKG_CONFIG_LIBDIR="$(PKG_CONFIG_LIBDIR)" \
CONFIG_SITE=$(CONFIG_SITE) \
CFLAGS="$(CFLAGS:C/ *$//)" \
+ USER_CFLAGS="$(USER_CFLAGS:C/ *$//)" \
MAKE="${MAKE}"
CONFIGURE_ARGS+= --disable-silent-rules
Index: lib/mesa/Makefile.bsd-wrapper
===================================================================
RCS file: /cvs/OpenBSD/xenocara/lib/mesa/Makefile.bsd-wrapper,v
retrieving revision 1.4
diff -u -p -u -r1.4 Makefile.bsd-wrapper
--- lib/mesa/Makefile.bsd-wrapper 20 Dec 2015 12:31:01 -0000 1.4
+++ lib/mesa/Makefile.bsd-wrapper 17 Feb 2016 20:44:59 -0000
@@ -18,6 +18,25 @@ DRI_DRIVERS=swrast,radeon,r200
GALLIUM_DRIVERS=swrast,r300,r600
.endif
+.if ${MACHINE} == alpha
+O1= -fdefer-pop -fguess-branch-probability -fcprop-registers \
+ -fif-conversion -fif-conversion2 -ftree-ccp -ftree-dce \
+ -ftree-dominator-opts -ftree-dse -ftree-ter -ftree-lrs -ftree-sra \
+ -ftree-copyrename -ftree-fre -ftree-ch -funit-at-a-time \
+ -fmerge-constants -fomit-frame-pointer
+
+O2= ${O1} -fthread-jumps -fcrossjumping -foptimize-sibling-calls \
+ -fcse-follow-jumps -fcse-skip-blocks -fgcse -fgcse-lm \
+ -fexpensive-optimizations -frerun-cse-after-loop \
+ -fcaller-saves -fpeephole2 -fschedule-insns -fschedule-insns2 \
+ -fsched-interblock -fsched-spec -fregmove \
+ -fdelete-null-pointer-checks -freorder-blocks \
+ -freorder-functions -falign-functions -falign-jumps -falign-loops \
+ -falign-labels -ftree-pre
+
+USER_CFLAGS= -O0 ${O2}
+.endif
+
CONFIGURE_ARGS= --with-dri-drivers=${DRI_DRIVERS} \
--with-gallium-drivers=${GALLIUM_DRIVERS} \
--disable-silent-rules \
Index: lib/mesa/src/util/u_atomic.h
===================================================================
RCS file: /cvs/OpenBSD/xenocara/lib/mesa/src/util/u_atomic.h,v
retrieving revision 1.2
diff -u -p -u -r1.2 u_atomic.h
--- lib/mesa/src/util/u_atomic.h 22 Nov 2015 03:08:22 -0000 1.2
+++ lib/mesa/src/util/u_atomic.h 17 Feb 2016 20:45:06 -0000
@@ -24,7 +24,8 @@
#elif defined(_MSC_VER)
#define PIPE_ATOMIC_MSVC_INTRINSIC
#elif defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_5__) || \
- defined(__hppa__) || defined(__sparc__) || defined(__sh__)
+ defined(__hppa__) || defined(__sparc__) || defined(__sh__) \
+ || defined(__alpha__)
#define PIPE_ATOMIC_UNLOCKED
#elif defined(__GNUC__)
#define PIPE_ATOMIC_GCC_INTRINSIC
--
Matthieu Herrb
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