From 8d200fad9c7f0217c2a45e5a9666e2ca5d824442 Mon Sep 17 00:00:00 2001
From: Kirill Yukhin <kirill.yukhin@intel.com>
Date: Fri, 18 Mar 2016 11:36:30 +0000
Subject: [PATCH] sse.md: Use vpbroadcastq for broadcasting DF values to 128b
 regs.

gcc/
        * config/i386/sse.md: Use vpbroadcastq for broadcasting DF
        values to 128b regs.

From-SVN: r234325
---
 gcc/ChangeLog          | 5 +++++
 gcc/config/i386/sse.md | 9 ++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 11a2a2d07dd..5be50b76802 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-03-18  Kirill Yukhin  <kirill.yukhin@intel.com>
+
+        * config/i386/sse.md: Use vpbroadcastq for broadcasting DF
+        values to 128b regs.
+
 2016-03-18  Ilya Enkovich  <enkovich.gnu@gmail.com>
 
 	PR tree-optimization/70252
diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 3c521b367f9..b25c2465ebf 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -17269,7 +17269,14 @@
 	    (match_operand:<ssexmmmode> 1 "nonimmediate_operand" "vm")
 	    (parallel [(const_int 0)]))))]
   "TARGET_AVX512F"
-  "v<sseintprefix>broadcast<bcstscalarsuff>\t{%1, %0<mask_operand2>|%0<mask_operand2>, %1}"
+{
+  /*  There is no DF broadcast (in AVX-512*) to 128b register.
+      Mimic it with integer variant.  */
+  if (<MODE>mode == V2DFmode)
+    return "vpbroadcastq\t{%1, %0<mask_operand2>|%0<mask_operand2>, %1}";
+  else
+    return "v<sseintprefix>broadcast<bcstscalarsuff>\t{%1, %0<mask_operand2>|%0<mask_operand2>, %1}";
+}
   [(set_attr "type" "ssemov")
    (set_attr "prefix" "evex")
    (set_attr "mode" "<sseinsnmode>")])
-- 
2.30.2