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x86: It is more optimal to push some register (NR_FRAME_POINTER_REG) instead of a constant value in a_load_undefined_cgpara().

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git-svn-id: trunk@46521 -
This commit is contained in:
yury 2020-08-20 19:59:36 +00:00
parent e28fca9729
commit 0a34a090e0
1 changed files with 12 additions and 0 deletions
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12
compiler/x86/hlcgx86.pas
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@ -43,6 +43,8 @@ interface
protected
procedure gen_load_uninitialized_function_result(list: TAsmList; pd: tprocdef; resdef: tdef; const resloc: tcgpara); override;
procedure a_jmp_external_name(list: TAsmList; const externalname: TSymStr); override;
public
procedure a_load_undefined_cgpara(list: TAsmList; size: tdef; const cgpara: TCGPara); override;
end;
implementation
@ -89,4 +91,14 @@ implementation
list.concat(taicpu.op_ref(A_JMP,S_NO,ref));
end;
procedure thlcgx86.a_load_undefined_cgpara(list: TAsmList; size: tdef; const cgpara: TCGPara);
begin
if not (cgpara.Location^.Loc in [LOC_REGISTER,LOC_CREGISTER]) and
(cgpara.size=OS_ADDR) then
a_load_reg_cgpara(list,size,NR_FRAME_POINTER_REG,cgpara)
else
inherited;
end;
end.