i965: Compile with -msse3

All CPUs that can be paired with a GPU supported by i965_dri.so supports
SSE3. This allows us to ensure that some vectorized version of the tiled
memcpy path is enabled on 32-bit systems.

This also ensures that __builtin_ia32_clflush is always usable.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101774
Tested-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>

diff --git a/src/mesa/drivers/dri/i965/Makefile.am b/src/mesa/drivers/dri/i965/Makefile.am
index ecc1e76..9293820 100644 (file)
--- a/src/mesa/drivers/dri/i965/Makefile.am
+++ b/src/mesa/drivers/dri/i965/Makefile.am
@@ -42,7 +42,8 @@ AM_CFLAGS = \
        $(DEFINES) \
        $(VISIBILITY_CFLAGS) \
        $(LIBDRM_CFLAGS) \
-       $(VALGRIND_CFLAGS)
+       $(VALGRIND_CFLAGS) \
+       -msse3
 
 AM_CXXFLAGS = $(AM_CFLAGS)