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authorJonas Suhr Christensen <jsc@umbraculum.org>2013-05-17 10:51:50 +0200
committerJonas Suhr Christensen <jsc@umbraculum.org>2013-05-17 10:51:50 +0200
commitaa02b204c0e5f92e8b444db52f25bb6b17dd6dc4 (patch)
tree7ecc74ea36d874343bd565bf0458d091a743250b /configure.in
parent165af82e9b8ecf098357eb4637888fb5f9487e3d (diff)
Disabling of sse and enabling sse with level.
Diffstat (limited to 'configure.in')
-rw-r--r--configure.in72
1 files changed, 46 insertions, 26 deletions
diff --git a/configure.in b/configure.in
index ca3b751..6fea409 100644
--- a/configure.in
+++ b/configure.in
@@ -325,34 +325,54 @@ AC_SUBST(EXPAT_LIBS)
dnl ===========================
dnl Check for SSE instructions
dnl ===========================
-AC_MSG_CHECKING([for sse3 instructions])
-if grep -q "sse3" /proc/cpuinfo
-then
- AC_MSG_RESULT([yes])
- SSEFLAGS="-msse3"
- AC_SUBST(SSEFLAGS)
-else
- AC_MSG_RESULT([no])
+AC_ARG_ENABLE([sse],
+[ --enable-sse[=level] Enable SSE Level 1, 2, 3 or auto [default=auto]],,
+ [enable_sse="auto"])
+if test "x$enable_sse" = "xyes"; then
+ enable_sse="auto"
fi
-AC_MSG_CHECKING([for sse2 instructions])
-if grep -q "sse2" /proc/cpuinfo
-then
- AC_MSG_RESULT([yes])
- SSEFLAGS="$SSEFLAGS -msse2"
- AC_SUBST(SSEFLAGS)
-else
- AC_MSG_RESULT([no])
+#AC_MSG_RESULT([SSE: $enable_sse])
+if test "x$enable_sse" = "x3"; then
+ AC_MSG_RESULT([Setting sse level 3])
+ SSE_FLAGS="-DSSE -msse -msse2 -mss3"
+elif test "x$enable_sse" = "x2"; then
+ AC_MSG_RESULT([Setting sse level 2])
+ SSE_FLAGS="-DSSE -msse -msse2"
+elif test "x$enable_sse" = "x1"; then
+ AC_MSG_RESULT([Setting sse level 1])
+ SSE_FLAGS="-DSSE -msse"
+elif test "x$enable_sse" = "xauto"; then
+ AC_MSG_RESULT([Auto setting sse level])
+ AC_MSG_CHECKING([for sse3 instructions])
+ if grep -q "sse3" /proc/cpuinfo
+ then
+ AC_MSG_RESULT([yes])
+ SSEFLAGS="-msse3"
+ AC_SUBST(SSEFLAGS)
+ else
+ AC_MSG_RESULT([no])
+ fi
+ AC_MSG_CHECKING([for sse2 instructions])
+ if grep -q "sse2" /proc/cpuinfo
+ then
+ AC_MSG_RESULT([yes])
+ SSEFLAGS="$SSEFLAGS -msse2"
+ AC_SUBST(SSEFLAGS)
+ else
+ AC_MSG_RESULT([no])
+ fi
+ AC_MSG_CHECKING([for sse instructions])
+ if grep -q "sse" /proc/cpuinfo
+ then
+ AC_MSG_RESULT([yes])
+ SSEFLAGS="$SSEFLAGS -DSSE -msse"
+ AC_SUBST(SSEFLAGS)
+ else
+ AC_MSG_RESULT([no])
+ fi
+else
+ AC_MSG_RESULT([*** Disabling SSE ***])
fi
-AC_MSG_CHECKING([for sse instructions])
-if grep -q "sse" /proc/cpuinfo
-then
- AC_MSG_RESULT([yes])
- SSEFLAGS="$SSEFLAGS -DSSE -msse"
- AC_SUBST(SSEFLAGS)
-else
- AC_MSG_RESULT([no])
-fi
-
AC_SUBST(CFLAGS)
AC_SUBST(CPPFLAGS)