From d9e1669d1c34715dabd372cb511f045c2802e2b3 Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@gmail.com>
Date: Sun, 5 Jan 2014 06:55:48 +0000
Subject: [PATCH] Use patterns to remove some duplicate instructions.

llvm-svn: 198550
---
 llvm/lib/Target/X86/X86InstrSSE.td           | 14 ++++++--------
 llvm/utils/TableGen/X86RecognizableInstr.cpp |  4 +---
 2 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/llvm/lib/Target/X86/X86InstrSSE.td b/llvm/lib/Target/X86/X86InstrSSE.td
index aaf9706e44fa..0aafaf86de14 100644
--- a/llvm/lib/Target/X86/X86InstrSSE.td
+++ b/llvm/lib/Target/X86/X86InstrSSE.td
@@ -4879,14 +4879,12 @@ def MOVPQI2QImr : S2I<0xD6, MRMDestMem, (outs), (ins i64mem:$dst, VR128:$src),
 //===---------------------------------------------------------------------===//
 // Store / copy lower 64-bits of a XMM register.
 //
-def VMOVLQ128mr : VS2I<0xD6, MRMDestMem, (outs), (ins i64mem:$dst, VR128:$src),
-                     "movq\t{$src, $dst|$dst, $src}",
-                     [(int_x86_sse2_storel_dq addr:$dst, VR128:$src)]>, VEX,
-                  Sched<[WriteStore]>;
-def MOVLQ128mr : S2I<0xD6, MRMDestMem, (outs), (ins i64mem:$dst, VR128:$src),
-                     "movq\t{$src, $dst|$dst, $src}",
-                     [(int_x86_sse2_storel_dq addr:$dst, VR128:$src)],
-                     IIC_SSE_MOVDQ>, Sched<[WriteStore]>;
+let Predicates = [UseAVX] in
+def : Pat<(int_x86_sse2_storel_dq addr:$dst, VR128:$src),
+          (VMOVPQI2QImr addr:$dst, VR128:$src)>;
+let Predicates = [UseSSE2] in
+def : Pat<(int_x86_sse2_storel_dq addr:$dst, VR128:$src),
+          (MOVPQI2QImr addr:$dst, VR128:$src)>;
 
 let isCodeGenOnly = 1, AddedComplexity = 20 in {
 def VMOVZQI2PQIrm : I<0x7E, MRMSrcMem, (outs VR128:$dst), (ins i64mem:$src),
diff --git a/llvm/utils/TableGen/X86RecognizableInstr.cpp b/llvm/utils/TableGen/X86RecognizableInstr.cpp
index c360d866fa70..75bf41307746 100644
--- a/llvm/utils/TableGen/X86RecognizableInstr.cpp
+++ b/llvm/utils/TableGen/X86RecognizableInstr.cpp
@@ -509,9 +509,7 @@ RecognizableInstr::filter_ret RecognizableInstr::filter() const {
 
   // Special cases.
 
-  if (Name == "MOVPQI2QImr"       ||
-      Name == "VMOVPQI2QImr"      ||
-      Name == "VMASKMOVDQU64")
+  if (Name == "VMASKMOVDQU64")
     return FILTER_WEAK;
 
   // XACQUIRE and XRELEASE reuse REPNE and REP respectively.