From d55fed16a44366f8d9800197ffa67bbd7189568b Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@gmail.com>
Date: Tue, 8 Oct 2013 06:30:39 +0000
Subject: [PATCH] Remove unneeded MMX instruction definition by moving pattern
 to an equivalent instruction definition and removing the filtering from the
 disassembler table building.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192175 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86InstrMMX.td           | 8 ++------
 utils/TableGen/X86RecognizableInstr.cpp | 1 -
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/lib/Target/X86/X86InstrMMX.td b/lib/Target/X86/X86InstrMMX.td
index 8ab8e025bea..16fb4d7959e 100644
--- a/lib/Target/X86/X86InstrMMX.td
+++ b/lib/Target/X86/X86InstrMMX.td
@@ -236,10 +236,10 @@ def MMX_MOVD64grr : MMXI<0x7E, MRMDestReg, (outs GR32:$dst), (ins VR64:$src),
                           (MMX_X86movd2w (x86mmx VR64:$src)))],
                           IIC_MMX_MOV_REG_MM>, Sched<[WriteMove]>;
 
-let neverHasSideEffects = 1 in
 def MMX_MOVD64to64rr : MMXRI<0x6E, MRMSrcReg, (outs VR64:$dst), (ins GR64:$src),
                              "movd\t{$src, $dst|$dst, $src}",
-                             [], IIC_MMX_MOV_MM_RM>, Sched<[WriteMove]>;
+                             [(set VR64:$dst, (bitconvert GR64:$src))],
+                             IIC_MMX_MOV_MM_RM>, Sched<[WriteMove]>;
 
 // These are 64 bit moves, but since the OS X assembler doesn't
 // recognize a register-register movq, we write them as
@@ -250,10 +250,6 @@ def MMX_MOVD64from64rr : MMXRI<0x7E, MRMDestReg,
                                "movd\t{$src, $dst|$dst, $src}", 
                              [(set GR64:$dst,
                               (bitconvert VR64:$src))], IIC_MMX_MOV_REG_MM>;
-def MMX_MOVD64rrv164 : MMXRI<0x6E, MRMSrcReg, (outs VR64:$dst), (ins GR64:$src),
-                             "movd\t{$src, $dst|$dst, $src}",
-                             [(set VR64:$dst,
-                              (bitconvert GR64:$src))], IIC_MMX_MOV_MM_RM>;
 let neverHasSideEffects = 1 in
 def MMX_MOVQ64rr : MMXI<0x6F, MRMSrcReg, (outs VR64:$dst), (ins VR64:$src),
                         "movq\t{$src, $dst|$dst, $src}", [],
diff --git a/utils/TableGen/X86RecognizableInstr.cpp b/utils/TableGen/X86RecognizableInstr.cpp
index 8a32ab18b8a..777afaa1ef2 100644
--- a/utils/TableGen/X86RecognizableInstr.cpp
+++ b/utils/TableGen/X86RecognizableInstr.cpp
@@ -546,7 +546,6 @@ RecognizableInstr::filter_ret RecognizableInstr::filter() const {
   if (Name == "PUSH64i16"         ||
       Name == "MOVPQI2QImr"       ||
       Name == "VMOVPQI2QImr"      ||
-      Name == "MMX_MOVD64rrv164"  ||
       Name == "MOV64ri64i32"      ||
       Name == "VMASKMOVDQU64"     ||
       Name == "VEXTRACTPSrr64")
-- 
2.11.0