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+ Xtensa: make use of muluh/mulsh instructions

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git-svn-id: trunk@46544 -
This commit is contained in:
florian 2020-08-22 17:21:36 +00:00
parent 11b601d44c
commit 31cb670b20
2 changed files with 45 additions and 2 deletions
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5
compiler/xtensa/cpuinfo.pas
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@ -137,7 +137,8 @@ Const
( (
CPUXTENSA_REGWINDOW, CPUXTENSA_REGWINDOW,
CPUXTENSA_HAS_SEXT, CPUXTENSA_HAS_SEXT,
CPUXTENSA_HAS_BOOLEAN_OPTION CPUXTENSA_HAS_BOOLEAN_OPTION,
CPUXTENSA_HAS_MUL32HIGH
); );
tfpuflags = tfpuflags =
@ -151,7 +152,7 @@ Const
( (
{ cpu_none } [], { cpu_none } [],
{ cpu_lx106 } [], { cpu_lx106 } [],
{ cpu_lx6 } [CPUXTENSA_REGWINDOW, CPUXTENSA_HAS_SEXT, CPUXTENSA_HAS_BOOLEAN_OPTION] { cpu_lx6 } [CPUXTENSA_REGWINDOW, CPUXTENSA_HAS_SEXT, CPUXTENSA_HAS_BOOLEAN_OPTION, CPUXTENSA_HAS_MUL32HIGH]
); );
fpu_capabilities : array[tfputype] of set of tfpuflags = fpu_capabilities : array[tfputype] of set of tfpuflags =

42
compiler/xtensa/ncpuadd.pas
View File

@ -35,6 +35,8 @@ interface
protected protected
function pass_1 : tnode;override; function pass_1 : tnode;override;
function first_addfloat: tnode;override; function first_addfloat: tnode;override;
function use_generic_mul32to64: boolean;override;
procedure second_addordinal;override;
procedure second_cmpordinal;override; procedure second_cmpordinal;override;
procedure second_cmpsmallset;override; procedure second_cmpsmallset;override;
procedure second_cmp64bit;override; procedure second_cmp64bit;override;
@ -61,6 +63,40 @@ interface
TCPUAddNode TCPUAddNode
*****************************************************************************} *****************************************************************************}
procedure TCPUAddNode.second_addordinal;
var
ophigh: tasmop;
begin
{ this is only true, if the CPU supports 32x32 -> 64 bit MUL, see the relevant method }
if (nodetype=muln) and is_64bit(resultdef) then
begin
if not(is_signed(left.resultdef)) or
not(is_signed(right.resultdef)) then
ophigh:=A_MULUH
else
ophigh:=A_MULSH;
pass_left_right;
if not(left.location.loc in [LOC_CREGISTER,LOC_REGISTER]) then
hlcg.location_force_reg(current_asmdata.CurrAsmList,left.location,left.resultdef,left.resultdef,true);
if not(right.location.loc in [LOC_CREGISTER,LOC_REGISTER]) then
hlcg.location_force_reg(current_asmdata.CurrAsmList,right.location,right.resultdef,right.resultdef,true);
{ initialize the result }
location_reset(location,LOC_REGISTER,def_cgsize(resultdef));
location.register64.reglo:=cg.getintregister(current_asmdata.CurrAsmList,OS_INT);
location.register64.reghi:=cg.getintregister(current_asmdata.CurrAsmList,OS_INT);
current_asmdata.CurrAsmList.concat(taicpu.op_reg_reg_reg(A_MULL,location.register64.reglo,left.location.register,right.location.register));
current_asmdata.CurrAsmList.concat(taicpu.op_reg_reg_reg(ophigh,location.register64.reghi,left.location.register,right.location.register));
end
else
Inherited;
end;
procedure TCPUAddNode.second_cmpsmallset; procedure TCPUAddNode.second_cmpsmallset;
var var
tmpreg : tregister; tmpreg : tregister;
@ -217,6 +253,12 @@ interface
end; end;
function TCPUAddNode.use_generic_mul32to64: boolean;
begin
result:=not(CPUXTENSA_HAS_MUL32HIGH in cpu_capabilities[current_settings.cputype]) or needoverflowcheck;
end;
procedure TCPUAddNode.second_addfloat; procedure TCPUAddNode.second_addfloat;
var var
op : TAsmOp; op : TAsmOp;