From 8ffb72ddd0ff843e830641aed26fd6c6bdc126c2 Mon Sep 17 00:00:00 2001
From: florian <florian@freepascal.org>
Date: Wed, 4 Sep 2019 16:36:54 +0000
Subject: [PATCH] * another missing part of r42916 ...

git-svn-id: trunk@42919 -
---
 .gitattributes               |  1 +
 compiler/aarch64/ncpucon.pas | 89 ++++++++++++++++++++++++++++++++++++
 2 files changed, 90 insertions(+)
 create mode 100644 compiler/aarch64/ncpucon.pas

diff --git a/.gitattributes b/.gitattributes
index 4e36c8aca0..8244fba179 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -29,6 +29,7 @@ compiler/aarch64/hlcgcpu.pas svneol=native#text/plain
 compiler/aarch64/itcpugas.pas svneol=native#text/plain
 compiler/aarch64/ncpuadd.pas svneol=native#text/plain
 compiler/aarch64/ncpucnv.pas svneol=native#text/plain
+compiler/aarch64/ncpucon.pas svneol=native#text/pascal
 compiler/aarch64/ncpuinl.pas svneol=native#text/plain
 compiler/aarch64/ncpumat.pas svneol=native#text/plain
 compiler/aarch64/ncpumem.pas svneol=native#text/plain
diff --git a/compiler/aarch64/ncpucon.pas b/compiler/aarch64/ncpucon.pas
new file mode 100644
index 0000000000..e29c30fc42
--- /dev/null
+++ b/compiler/aarch64/ncpucon.pas
@@ -0,0 +1,89 @@
+{
+    Copyright (c) 2005 by Florian Klaempfl
+
+    Code generation for const nodes on the AArch64
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ ****************************************************************************
+}
+unit ncpucon;
+
+{$i fpcdefs.inc}
+
+interface
+
+    uses
+      node,ncgcon,cpubase;
+
+    type
+      taarch64realconstnode = class(tcgrealconstnode)
+        function pass_1 : tnode;override;
+        procedure pass_generate_code;override;
+      end;
+
+  implementation
+
+    uses
+      verbose,
+      globtype,globals,
+      cpuinfo,
+      aasmbase,aasmtai,aasmdata,aasmcpu,
+      symdef,
+      defutil,
+      cgbase,cgutils,cgobj,
+      procinfo,
+      ncon;
+
+{*****************************************************************************
+                           TARMREALCONSTNODE
+*****************************************************************************}
+
+    function taarch64realconstnode.pass_1 : tnode;
+      begin
+        result:=nil;
+        if IsFloatImmediate(tfloatdef(resultdef).floattype,value_real) then
+           expectloc:=LOC_MMREGISTER
+         else
+           result:=Inherited pass_1;
+      end;
+
+
+    procedure taarch64realconstnode.pass_generate_code;
+      var
+        hreg : TRegister;
+      begin
+        if IsFloatImmediate(tfloatdef(resultdef).floattype,value_real) then
+          begin
+            location_reset(location,LOC_MMREGISTER,def_cgsize(resultdef));
+            location.register:=cg.getmmregister(current_asmdata.CurrAsmList,location.size);
+            current_asmdata.CurrAsmList.concat(taicpu.op_reg_realconst(A_FMOV,
+              location.register,value_real));
+          end
+        else if value_real=0.0 then
+          begin
+            location_reset(location,LOC_MMREGISTER,def_cgsize(resultdef));
+            location.register:=cg.getmmregister(current_asmdata.CurrAsmList,location.size);
+            hreg:=newreg(R_MMREGISTER,getsupreg(location.register),R_SUBMM16B);
+            current_asmdata.CurrAsmList.concat(taicpu.op_reg_reg_reg(A_EOR,
+              hreg,hreg,hreg));
+          end
+        else
+          Inherited pass_generate_code;
+      end;
+
+begin
+  crealconstnode:=taarch64realconstnode;
+end.