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71deda6f50
implementation (without loc_©mmregister support)
* moved ncgutil.gen_load_return_value() to hlcgobj, and factored out
architecture-specific behaviour to load an uninitialised function result
into a virtual method (+ JVM-specific implementation of that method),
gen_load_uninitialized_function_result()
+ added hlcgx86 unit and thlcgx86 type to override the
thlcgobj.gen_load_uninitialized_function_result() method for x87
function results; the i386 and x86_64 units now instantiate thlcgx86
instead of thlcg2ll
* moved calling of ncgutil.gen_load_loc_cgpara() from ncgcal also to hlcgobj
-> returning function results works for JVM
git-svn-id: branches/jvmbackend@18317 -
63 lines
1.7 KiB
ObjectPascal
63 lines
1.7 KiB
ObjectPascal
{
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Copyright (c) 1998-2010 by Florian Klaempfl and Jonas Maebe
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Member of the Free Pascal development team
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This unit contains routines to create a pass-through high-level code
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generator. This is used by most regular code generators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit hlcgx86;
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interface
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{$i fpcdefs.inc}
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uses
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aasmdata,
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symtype,symdef,
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parabase,
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hlcgobj, hlcg2ll;
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type
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{ thlcgx86 }
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thlcgx86 = class(thlcg2ll)
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protected
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procedure gen_load_uninitialized_function_result(list: TAsmList; pd: tprocdef; resdef: tdef; const resloc: tcgpara); override;
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end;
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implementation
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uses
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cgbase,
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cpubase,aasmcpu;
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{ thlcgx86 }
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procedure thlcgx86.gen_load_uninitialized_function_result(list: TAsmList; pd: tprocdef; resdef: tdef; const resloc: tcgpara);
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begin
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{ the caller will pop a value from the fpu stack }
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if assigned(resloc.location) and
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(resloc.location^.loc=LOC_FPUREGISTER) then
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list.concat(taicpu.op_none(A_FLDZ));
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end;
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end.
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