From 6f173e52cbd7ec8160a7c0d6c23fa6d1bb7a7f66 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@redhat.com>
Date: Tue, 24 Aug 2010 14:08:05 -0700
Subject: re PR bootstrap/45376 (no such instruction: `pcmpestri
 $0,(%rdi),%xmm0')

        PR bootstrap/45376
        * configure.ac (HAVE_SSE4): New check.
        * configure, config.in: Rebuild.
        * lex.c (search_line_sse42): Omit if !HAVE_SSE4.

From-SVN: r163528
---
 libcpp/configure.ac | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'libcpp/configure.ac')

diff --git a/libcpp/configure.ac b/libcpp/configure.ac
index 1250f49..8082117 100644
--- a/libcpp/configure.ac
+++ b/libcpp/configure.ac
@@ -184,6 +184,13 @@ AC_DEFINE_UNQUOTED(HOST_WIDE_INT, $host_wide_int,
 [Define to the widest efficient host integer type at least
    as wide as the target's size_t type.])
 
+case $target in
+  i?86-* | x86_64-*)
+    AC_TRY_COMPILE([], [asm ("pcmpestri %0, %%xmm0, %%xmm1" : : "i"(0))],
+      [AC_DEFINE([HAVE_SSE4], [1],
+		 [Define to 1 if you can assemble SSE4 insns.])])
+esac
+
 # Output.
 
 AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])
-- 
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