+ common assembler optimizer base class for arm and aarch64

git-svn-id: trunk@44720 -

.gitattributes

@@ -106,6 +106,7 @@ compiler/arm/rarmstd.inc svneol=native#text/plain
 compiler/arm/rarmsup.inc svneol=native#text/plain
 compiler/arm/rgcpu.pas svneol=native#text/plain
 compiler/arm/symcpu.pas svneol=native#text/plain
+compiler/armgen/aoptarm.pas svneol=native#text/pascal
 compiler/armgen/armpara.pas svneol=native#text/plain
 compiler/assemble.pas svneol=native#text/plain
 compiler/avr/aasmcpu.pas svneol=native#text/plain

compiler/aarch64/aoptcpu.pas

@@ -32,10 +32,11 @@ Interface
     uses
       globtype, globals,
       cutils,
-      cgbase, cpubase, aasmtai, aasmcpu, aopt, aoptcpub;
+      cgbase, cpubase, aasmtai, aasmcpu,
+      aopt, aoptcpub, aoptarm;
 
     Type
-      TCpuAsmOptimizer = class(TAsmOptimizer)
+      TCpuAsmOptimizer = class(TARMAsmOptimizer)
         { uses the same constructor as TAopObj }
         function PeepHoleOptPass1Cpu(var p: tai): boolean; override;
         function PostPeepHoleOptsCpu(var p: tai): boolean; override;

compiler/arm/aoptcpu.pas

@@ -30,10 +30,13 @@ Unit aoptcpu;
 
 Interface
 
-uses cgbase, cgutils, cpubase, aasmtai, aasmcpu,aopt, aoptobj;
+uses
+  cgbase, cgutils, cpubase, aasmtai,
+  aasmcpu,
+  aopt, aoptobj, aoptarm;
 
 Type
-  TCpuAsmOptimizer = class(TAsmOptimizer)
+  TCpuAsmOptimizer = class(TARMAsmOptimizer)
     { Can't be done in some cases due to the limited range of jumps }
     function CanDoJumpOpts: Boolean; override;
 

compiler/armgen/aoptarm.pas

@@ -0,0 +1,52 @@
+{
+    Copyright (c) 1998-2020 by Jonas Maebe and Florian Klaempfl, members of the Free Pascal
+    Development Team
+
+    This unit implements an ARM optimizer object used commonly for ARM and AAarch64
+
+    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 aoptarm;
+
+{$i fpcdefs.inc}
+
+{ $define DEBUG_PREREGSCHEDULER}
+{ $define DEBUG_AOPTCPU}
+
+Interface
+
+uses
+  cgbase, cgutils, cpubase, aasmtai, aasmcpu,aopt, aoptobj;
+
+Type
+  { while ARM and AAarch64 look not very similar at a first glance,
+    several optimizations can be shared between both }
+  TARMAsmOptimizer = class(TAsmOptimizer)
+  End;
+
+Implementation
+
+  uses
+    cutils,verbose,globtype,globals,
+    systems,
+    cpuinfo,
+    cgobj,procinfo,
+    aasmbase,aasmdata;
+
+end.
+