PR bootstrap/45376

        * configure.ac (HAVE_SSE4): New check.
        * configure, config.in: Rebuild.
        * lex.c (search_line_sse42): Omit if !HAVE_SSE4.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@163528 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 21 insertions, 0 deletions

diff --git a/libcpp/configure b/libcpp/configure
index a2ce1c3a70a..012ee41c819 100755
--- a/libcpp/configure
+++ b/libcpp/configure
@@ -7209,6 +7209,27 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+case $target in
+  i?86-* | x86_64-*)
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+asm ("pcmpestri %0, %%xmm0, %%xmm1" : : "i"(0))
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+$as_echo "#define HAVE_SSE4 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+esac
+
 # Output.
 
 ac_config_headers="$ac_config_headers config.h:config.in"