fpc/compiler/mips/cpuinfo.pas
sergei 1c84c3edbf * Fixed label optimizer to work with MIPS, and enabled level 1 optimization for MIPS targets.
The difference in branch instruction formats is isolated in function JumpTargetOp, it is a plain function rather than a virtual method, so it can be easily inlined and, after inlining, produces the same code for non-MIPS targets as it was before change.

git-svn-id: trunk@25033 -
2013-07-03 14:40:24 +00:00

142 lines
3.5 KiB
ObjectPascal

{
Copyright (c) 1998-2002 by the Free Pascal development team
Basic Processor information for the ARM
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
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.
**********************************************************************}
Unit CPUInfo;
Interface
uses
globtype;
Type
bestreal = double;
ts32real = single;
ts64real = double;
ts80real = type double;
ts128real = type double;
ts64comp = comp;
pbestreal=^bestreal;
{ possible supported processors for this target }
tcputype =
(cpu_none,
cpu_mips1,
cpu_mips2,
cpu_mips3,
cpu_mips4,
cpu_mips5,
cpu_mips32,
cpu_mips32r2
);
tfputype =(fpu_none,fpu_soft,fpu_mips2,fpu_mips3);
tabitype =
(
abi_none,
abi_default,
abi_o32,
abi_n32,
abi_o64,
abi_n64,
abi_eabi
);
Const
{# Size of native extended floating point type }
extended_size = 8;
{# Size of a multimedia register }
mmreg_size = 0;
{ target cpu string (used by compiler options) }
{$ifdef MIPSEL}
target_cpu_string = 'mipsel';
{$else MIPSEL}
target_cpu_string = 'mips';
{$endif MIPSEL}
{ calling conventions supported by the code generator }
supported_calling_conventions : tproccalloptions = [
pocall_internproc,
pocall_stdcall,
{ same as stdcall only different name mangling }
pocall_cdecl,
{ same as stdcall only different name mangling }
pocall_cppdecl
];
{ cpu strings as accepted by
GNU assembler in -arch=XXX option
this ilist needs to be uppercased }
cputypestr : array[tcputype] of string[8] = ('',
{ cpu_mips1 } 'MIPS1',
{ cpu_mips2 } 'MIPS2',
{ cpu_mips3 } 'MIPS3',
{ cpu_mips4 } 'MIPS4',
{ cpu_mips5 } 'MIPS5',
{ cpu_mips32 } 'MIPS32',
{ cpu_mips32r2 } 'MIPS32R2'
);
fputypestr : array[tfputype] of string[9] = ('',
'SOFT',
'FPU_MIPS2','FPU_MIPS3'
);
{ abi strings as accepted by
GNU assembler in -abi=XXX option }
abitypestr : array[tabitype] of string[4] =
({ abi_none } '',
{ abi_default } '32',
{ abi_o32 } '32',
{ abi_n32 } 'n32',
{ abi_o64 } 'o64',
{ abi_n64 } '64',
{ abi_eabi } 'eabi'
);
mips_abi : tabitype = abi_default;
{ Supported optimizations, only used for information }
supported_optimizerswitches = [cs_opt_regvar,cs_opt_loopunroll,cs_opt_nodecse,
cs_opt_reorder_fields,cs_opt_fastmath];
level1optimizerswitches = [cs_opt_level1];
level2optimizerswitches = level1optimizerswitches + [cs_opt_regvar,cs_opt_stackframe,cs_opt_nodecse];
level3optimizerswitches = level2optimizerswitches + [cs_opt_loopunroll];
level4optimizerswitches = genericlevel4optimizerswitches + level3optimizerswitches + [];
function SetMipsABIType(const s : string) : boolean;
Implementation
uses
cutils;
function SetMipsABIType(const s : string) : boolean;
var
abi : tabitype;
begin
SetMipsABIType:=false;
for abi := low(tabitype) to high(tabitype) do
if (lower(s)=abitypestr[abi]) then
begin
mips_abi:=abi;
SetMipsABIType:=true;
break;
end;
end;
end.