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-rw-r--r--autoconf/configure.ac11
-rwxr-xr-xconfigure21
-rw-r--r--include/llvm/Config/config.h.in3
3 files changed, 34 insertions, 1 deletions
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 7715531a33..7babb90767 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -411,6 +411,17 @@ fi
AC_SUBST(HOST_ARCH,$host_arch)
+dnl Default cpu (-mcpu=cpu) to use to all compiler invocations
+AC_ARG_WITH(default-cpu,
+ AS_HELP_STRING([--with-default-cpu],
+ [Add by default -mcpu=cpu to all compiler invocations.]),,
+ withval="Unknown")
+
+if test "$withval" != "Unknown" ; then
+ AC_DEFINE_UNQUOTED(DEFAULT_TARGET_MCPU,"$withval",
+ [Default cpu (-mcpu=cpu) to use to all compiler invocations.])
+fi
+
dnl Check for the endianness of the target
AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
diff --git a/configure b/configure
index 4fa0705491..6ae92aa528 100755
--- a/configure
+++ b/configure
@@ -1440,6 +1440,8 @@ Optional Features:
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
--without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)
+ --with-default-cpu Add by default -mcpu=cpu to all compiler
+ invocations.
--with-optimize-option Select the compiler options to use for optimized
builds
--with-extra-options Specify additional options to compile LLVM with
@@ -3955,6 +3957,23 @@ HOST_ARCH=$host_arch
+# Check whether --with-default-cpu was given.
+if test "${with_default_cpu+set}" = set; then
+ withval=$with_default_cpu;
+else
+ withval="Unknown"
+fi
+
+
+if test "$withval" != "Unknown" ; then
+
+cat >>confdefs.h <<_ACEOF
+#define DEFAULT_TARGET_MCPU "$withval"
+_ACEOF
+
+fi
+
+
{ echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5
echo $ECHO_N "checking for grep that handles long lines and -e... $ECHO_C" >&6; }
@@ -10316,7 +10335,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<EOF
-#line 10317 "configure"
+#line 10338 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
diff --git a/include/llvm/Config/config.h.in b/include/llvm/Config/config.h.in
index a4f8af4db0..2334d3894e 100644
--- a/include/llvm/Config/config.h.in
+++ b/include/llvm/Config/config.h.in
@@ -18,6 +18,9 @@
/* Default <path> to all compiler invocations for --sysroot=<path>. */
#undef DEFAULT_SYSROOT
+/* Default cpu (-mcpu=cpu) to use to all compiler invocations. */
+#undef DEFAULT_TARGET_MCPU
+
/* Define if you want backtraces on crash */
#undef ENABLE_BACKTRACES