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* fixed floating point precision conversions for loc_mmregister and

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between loc_fpuregister and loc_mmregister

git-svn-id: trunk@5942 -
This commit is contained in:
Jonas Maebe 2007-01-13 15:00:00 +00:00
parent 18eaee6ea3
commit fc99b0ad48
2 changed files with 26 additions and 30 deletions
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38
compiler/ncgcnv.pas
View File

@ -272,22 +272,25 @@ interface
procedure tcgtypeconvnode.second_real_to_real;
begin
location_reset(location,LOC_FPUREGISTER,def_cgsize(resultdef));
location_reset(location,expectloc,def_cgsize(resultdef));
{$ifdef x86}
{ extended types in memory which should be loaded into the sse unit
must be converted by the fpu first, so force them to be loaded into
the fpu }
if (expectloc=LOC_MMREGISTER) and
(left.location.loc in [LOC_CREFERENCE,LOC_REFERENCE]) and
(left.location.size=OS_F80) then
location_force_fpureg(current_asmdata.CurrAsmList,left.location,false);
(left.location.size in [OS_F80,OS_C64]) then
begin
if (left.location.loc in [LOC_CREFERENCE,LOC_REFERENCE]) then
location_force_fpureg(current_asmdata.CurrAsmList,left.location,false);
{ round them down to the proper precision }
cg.a_loadfpu_reg_reg(current_asmdata.CurrAsmList,left.location.size,location.size,left.location.register,left.location.register);
left.location.size:=location.size;
end;
{$endif x86}
case left.location.loc of
LOC_FPUREGISTER,
LOC_CFPUREGISTER:
begin
location_copy(location,left.location);
location.size:=def_cgsize(resultdef);
case expectloc of
LOC_FPUREGISTER:
begin
@ -298,7 +301,11 @@ interface
cg.a_loadfpu_reg_reg(current_asmdata.CurrAsmList,left.location.size,location.size,left.location.register,location.register);
end;
LOC_MMREGISTER:
location_force_mmregscalar(current_asmdata.CurrAsmList,location,false);
begin
location_force_mmregscalar(current_asmdata.CurrAsmList,left.location,false);
location.register:=cg.getmmregister(current_asmdata.CurrAsmList,location.size);
cg.a_loadmm_reg_reg(current_asmdata.CurrAsmList,left.location.size,location.size,left.location.register,location.register,nil);
end
else
internalerror(2003012262);
end;
@ -309,29 +316,32 @@ interface
begin
if expectloc=LOC_MMREGISTER then
begin
location_reset(location,LOC_MMREGISTER,def_cgsize(resultdef));
location.register:=cg.getmmregister(current_asmdata.CurrAsmList,location.size);
cg.a_loadmm_loc_reg(current_asmdata.CurrAsmList,location.size,left.location,location.register,mms_movescalar)
end
else
begin
location.register:=cg.getfpuregister(current_asmdata.CurrAsmList,left.location.size);
cg.a_loadfpu_loc_reg(current_asmdata.CurrAsmList,location.size,left.location,location.register);
location_force_fpureg(current_asmdata.CurrAsmList,left.location,false);
location.register:=cg.getfpuregister(current_asmdata.CurrAsmList,location.size);
cg.a_loadfpu_reg_reg(current_asmdata.CurrAsmList,left.location.size,location.size,left.location.register,location.register);
end;
location_freetemp(current_asmdata.CurrAsmList,left.location);
end;
LOC_MMREGISTER,
LOC_CMMREGISTER:
begin
location_copy(location,left.location);
case expectloc of
LOC_FPUREGISTER:
begin
location_force_fpureg(current_asmdata.CurrAsmList,location,false);
location.size:=def_cgsize(resultdef);
location_force_fpureg(current_asmdata.CurrAsmList,left.location,false);
location.register:=cg.getfpuregister(current_asmdata.CurrAsmList,location.size);
cg.a_loadfpu_reg_reg(current_asmdata.CurrAsmList,left.location.size,location.size,left.location.register,location.register);
end;
LOC_MMREGISTER:
;
begin
location.register:=cg.getmmregister(current_asmdata.CurrAsmList,location.size);
cg.a_loadmm_reg_reg(current_asmdata.CurrAsmList,left.location.size,location.size,left.location.register,location.register,nil);
end;
else
internalerror(2003012261);
end;

18
compiler/x86/cgx86.pas
View File

@ -915,22 +915,8 @@ unit cgx86;
var
instr : taicpu;
begin
if shuffle=nil then
begin
if fromsize=tosize then
{ needs correct size in case of spilling }
case fromsize of
OS_F32:
instr:=taicpu.op_reg_reg(A_MOVAPS,S_NO,reg1,reg2);
OS_F64:
instr:=taicpu.op_reg_reg(A_MOVAPD,S_NO,reg1,reg2);
else
internalerror(2006091201);
end
else
internalerror(200312202);
end
else if shufflescalar(shuffle) then
if (shuffle=nil) or
shufflescalar(shuffle) then
instr:=taicpu.op_reg_reg(get_scalar_mm_op(fromsize,tosize),S_NO,reg1,reg2)
else
internalerror(200312201);