From e220a047346ff5c0e0de0785dca035c914434a48 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@redhat.com>
Date: Mon, 7 May 2012 08:55:11 -0700
Subject: [PATCH] * config/alpha/alpha.md (clear_cache): New pattern.

From-SVN: r187255
---
 gcc/ChangeLog             | 4 ++++
 gcc/config/alpha/alpha.md | 9 +++++++++
 2 files changed, 13 insertions(+)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 33aae8a11d85..084f063c9258 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2012-05-07  Richard Henderson  <rth@redhat.com>
+
+	* config/alpha/alpha.md (clear_cache): New pattern.
+
 2012-05-07  Steven Bosscher  <steven@gcc.gnu.org>
 
 	PR middle-end/53245
diff --git a/gcc/config/alpha/alpha.md b/gcc/config/alpha/alpha.md
index e89ed2719420..21c4d2e05547 100644
--- a/gcc/config/alpha/alpha.md
+++ b/gcc/config/alpha/alpha.md
@@ -4346,6 +4346,15 @@
   "call_pal 0x86"
   [(set_attr "type" "callpal")])
 
+(define_expand "clear_cache"
+  [(match_operand:DI 0 "")		; region start
+   (match_operand:DI 1 "")]		; region end
+  ""
+{
+  emit_insn (gen_imb ());
+  DONE;
+})
+
 ;; BUGCHK is documented common to OSF/1 and VMS PALcode.
 (define_insn "trap"
   [(trap_if (const_int 1) (const_int 0))]