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+ use sse for sqrt if possible

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* same optimization for sqrt as for sqr

git-svn-id: trunk@1266 -
This commit is contained in:
florian 2005-10-03 12:47:05 +00:00
parent 6371333361
commit 19e97e4da2
2 changed files with 20 additions and 4 deletions
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3
compiler/ninl.pas
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@ -1966,8 +1966,7 @@ implementation
else
begin
set_varstate(left,vs_used,[vsf_must_be_valid]);
inserttypeconv(left,pbestrealtype^);
resulttype:=pbestrealtype^;
setfloatresulttype;
end;
end;

21
compiler/x86/nx86inl.pas
View File

@ -262,8 +262,25 @@ implementation
procedure tx86inlinenode.second_sqrt_real;
begin
load_fpu_location;
emit_none(A_FSQRT,S_NO);
if use_sse(resulttype.def) then
begin
secondpass(left);
location_force_mmregscalar(exprasmlist,left.location,false);
location:=left.location;
case tfloatdef(resulttype.def).typ of
s32real:
exprasmlist.concat(taicpu.op_reg_reg(A_SQRTSS,S_XMM,location.register,location.register));
s64real:
exprasmlist.concat(taicpu.op_reg_reg(A_SQRTSD,S_XMM,location.register,location.register));
else
internalerror(200510031);
end;
end
else
begin
load_fpu_location;
emit_none(A_FSQRT,S_NO);
end;
end;
procedure tx86inlinenode.second_ln_real;