mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 21:09:38 +01:00
9853c4a2a3
(i.e. shift/rotate by k) of sar, rol and ror with type conversion on i386 and x86_64. git-svn-id: trunk@36755 -
646 lines
34 KiB
ObjectPascal
646 lines
34 KiB
ObjectPascal
{
|
|
Copyright (c) 2017 by Nikolay Nikolov
|
|
|
|
Optimizations for making use of load-modify-store operations in CISC-like
|
|
instruction set architectures (such as x86)
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
****************************************************************************
|
|
}
|
|
|
|
unit optloadmodifystore;
|
|
|
|
{$i fpcdefs.inc}
|
|
|
|
{$if defined(i386) or defined(x86_64) or defined(m68k)}
|
|
{$define enable_shl_shr_assign_x_y}
|
|
{$endif}
|
|
{$if defined(i386) or defined(x86_64)}
|
|
{$define enable_sar_assign_x_y}
|
|
{$endif}
|
|
{$if defined(i386) or defined(x86_64)}
|
|
{$define enable_rox_assign_x_y}
|
|
{$endif}
|
|
|
|
interface
|
|
|
|
uses
|
|
node;
|
|
|
|
procedure do_optloadmodifystore(var rootnode : tnode);
|
|
|
|
implementation
|
|
|
|
uses
|
|
globtype,verbose,nutils,compinnr,
|
|
defutil,defcmp,htypechk,pass_1,constexp,
|
|
nadd,ncal,ncon,ncnv,ninl,nld,nmat,
|
|
symdef;
|
|
|
|
function try_opt_assignmentnode(assignmentnode: tassignmentnode): tnode;
|
|
var
|
|
newinlinenodetype: tinlinenumber;
|
|
begin
|
|
result:=nil;
|
|
with assignmentnode do
|
|
begin
|
|
{ replace i:=succ/pred(i) by inc/dec(i)? }
|
|
if (right.nodetype=inlinen) and
|
|
((tinlinenode(right).inlinenumber=in_succ_x) or (tinlinenode(right).inlinenumber=in_pred_x)) and
|
|
(tinlinenode(right).left.isequal(left)) and
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(tinlinenode(right).left,false) and
|
|
not(might_have_sideeffects(tinlinenode(right).left)) then
|
|
begin
|
|
if tinlinenode(right).inlinenumber=in_succ_x then
|
|
newinlinenodetype:=in_inc_x
|
|
else
|
|
newinlinenodetype:=in_dec_x;
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
tinlinenode(right).left,nil));
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
tinlinenode(right).left:=nil;
|
|
exit;
|
|
end;
|
|
{ replace i:=i+k by inc(i,k)
|
|
i:=i-k by dec(i,k)
|
|
i:=i and/or/xor k by in_[and/or/xor]_assign_x_y(i,k)
|
|
|
|
this handles the case, where there are no implicit type conversions }
|
|
if (right.nodetype in [addn,subn,andn,orn,xorn]) and
|
|
(taddnode(right).left.isequal(left)) and
|
|
is_integer(taddnode(right).left.resultdef) and
|
|
is_integer(taddnode(right).right.resultdef) and
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(taddnode(right).left,false) and
|
|
not(might_have_sideeffects(taddnode(right).left)) then
|
|
begin
|
|
case right.nodetype of
|
|
addn:
|
|
newinlinenodetype:=in_inc_x;
|
|
subn:
|
|
newinlinenodetype:=in_dec_x;
|
|
andn:
|
|
newinlinenodetype:=in_and_assign_x_y;
|
|
orn:
|
|
newinlinenodetype:=in_or_assign_x_y;
|
|
xorn:
|
|
newinlinenodetype:=in_xor_assign_x_y;
|
|
else
|
|
internalerror(2017032901);
|
|
end;
|
|
if right.nodetype in [addn,subn] then
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
taddnode(right).left,ccallparanode.create(taddnode(right).right,nil)))
|
|
else
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
taddnode(right).right,ccallparanode.create(taddnode(right).left,nil)));
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
taddnode(right).left:=nil;
|
|
taddnode(right).right:=nil;
|
|
exit;
|
|
end;
|
|
{ replace i:=i+k by inc(i,k)
|
|
i:=i-k by dec(i,k)
|
|
i:=i and/or/xor k by in_[and/or/xor]_assign_x_y(i,k)
|
|
|
|
this handles the case with two conversions (outer and inner):
|
|
outer typeconv: right
|
|
add/sub/and/or/xor: ttypeconvnode(right).left
|
|
inner typeconv: taddnode(ttypeconvnode(right).left).left
|
|
right side 'i': ttypeconvnode(taddnode(ttypeconvnode(right).left).left).left
|
|
right side 'k': taddnode(ttypeconvnode(right).left).right }
|
|
if (right.nodetype=typeconvn) and
|
|
(ttypeconvnode(right).convtype=tc_int_2_int) and
|
|
(ttypeconvnode(right).left.nodetype in [addn,subn,andn,orn,xorn]) and
|
|
is_integer(ttypeconvnode(right).left.resultdef) and
|
|
(right.resultdef.size<=ttypeconvnode(right).left.resultdef.size) and
|
|
(taddnode(ttypeconvnode(right).left).left.nodetype=typeconvn) and
|
|
(ttypeconvnode(taddnode(ttypeconvnode(right).left).left).convtype=tc_int_2_int) and
|
|
are_equal_ints(right.resultdef,ttypeconvnode(taddnode(ttypeconvnode(right).left).left).left.resultdef) and
|
|
ttypeconvnode(taddnode(ttypeconvnode(right).left).left).left.isequal(left) and
|
|
is_integer(taddnode(ttypeconvnode(right).left).left.resultdef) and
|
|
is_integer(taddnode(ttypeconvnode(right).left).right.resultdef) and
|
|
is_integer(ttypeconvnode(taddnode(ttypeconvnode(right).left).left).left.resultdef) and
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(ttypeconvnode(taddnode(ttypeconvnode(right).left).left).left,false) and
|
|
not(might_have_sideeffects(ttypeconvnode(taddnode(ttypeconvnode(right).left).left).left)) then
|
|
begin
|
|
case ttypeconvnode(right).left.nodetype of
|
|
addn:
|
|
newinlinenodetype:=in_inc_x;
|
|
subn:
|
|
newinlinenodetype:=in_dec_x;
|
|
andn:
|
|
newinlinenodetype:=in_and_assign_x_y;
|
|
orn:
|
|
newinlinenodetype:=in_or_assign_x_y;
|
|
xorn:
|
|
newinlinenodetype:=in_xor_assign_x_y;
|
|
else
|
|
internalerror(2017032901);
|
|
end;
|
|
inserttypeconv_internal(taddnode(ttypeconvnode(right).left).right,left.resultdef);
|
|
if ttypeconvnode(right).left.nodetype in [addn,subn] then
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
ttypeconvnode(taddnode(ttypeconvnode(right).left).left).left,ccallparanode.create(taddnode(ttypeconvnode(right).left).right,nil)))
|
|
else
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
taddnode(ttypeconvnode(right).left).right,ccallparanode.create(ttypeconvnode(taddnode(ttypeconvnode(right).left).left).left,nil)));
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
ttypeconvnode(taddnode(ttypeconvnode(right).left).left).left:=nil;
|
|
taddnode(ttypeconvnode(right).left).right:=nil;
|
|
exit;
|
|
end;
|
|
{ replace i:=k+i by inc(i,k)
|
|
i:=k and/or/xor i by in_[and/or/xor]_assign_x_y(i,k)
|
|
|
|
this handles the case, where there are no implicit type conversions }
|
|
if (right.nodetype in [addn,andn,orn,xorn]) and
|
|
(taddnode(right).right.isequal(left)) and
|
|
is_integer(taddnode(right).left.resultdef) and
|
|
is_integer(taddnode(right).right.resultdef) and
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(taddnode(right).right,false) and
|
|
not(might_have_sideeffects(taddnode(right).right)) then
|
|
begin
|
|
case right.nodetype of
|
|
addn:
|
|
newinlinenodetype:=in_inc_x;
|
|
andn:
|
|
newinlinenodetype:=in_and_assign_x_y;
|
|
orn:
|
|
newinlinenodetype:=in_or_assign_x_y;
|
|
xorn:
|
|
newinlinenodetype:=in_xor_assign_x_y;
|
|
else
|
|
internalerror(2017032902);
|
|
end;
|
|
if right.nodetype=addn then
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
taddnode(right).right,ccallparanode.create(taddnode(right).left,nil)))
|
|
else
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
taddnode(right).left,ccallparanode.create(taddnode(right).right,nil)));
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
taddnode(right).right:=nil;
|
|
taddnode(right).left:=nil;
|
|
exit;
|
|
end;
|
|
{ replace i:=k+i by inc(i,k)
|
|
i:=k and/or/xor i by in_[and/or/xor]_assign_x_y(i,k)
|
|
|
|
this handles the case with two conversions (outer and inner):
|
|
outer typeconv: right
|
|
add/and/or/xor: ttypeconvnode(right).left
|
|
inner typeconv: taddnode(ttypeconvnode(right).left).right
|
|
right side 'i': ttypeconvnode(taddnode(ttypeconvnode(right).left).right).left
|
|
right side 'k': taddnode(ttypeconvnode(right).left).left }
|
|
if (right.nodetype=typeconvn) and
|
|
(ttypeconvnode(right).convtype=tc_int_2_int) and
|
|
(ttypeconvnode(right).left.nodetype in [addn,andn,orn,xorn]) and
|
|
is_integer(ttypeconvnode(right).left.resultdef) and
|
|
(right.resultdef.size<=ttypeconvnode(right).left.resultdef.size) and
|
|
(taddnode(ttypeconvnode(right).left).right.nodetype=typeconvn) and
|
|
(ttypeconvnode(taddnode(ttypeconvnode(right).left).right).convtype=tc_int_2_int) and
|
|
are_equal_ints(right.resultdef,ttypeconvnode(taddnode(ttypeconvnode(right).left).right).left.resultdef) and
|
|
ttypeconvnode(taddnode(ttypeconvnode(right).left).right).left.isequal(left) and
|
|
is_integer(taddnode(ttypeconvnode(right).left).left.resultdef) and
|
|
is_integer(taddnode(ttypeconvnode(right).left).right.resultdef) and
|
|
is_integer(ttypeconvnode(taddnode(ttypeconvnode(right).left).right).left.resultdef) and
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(ttypeconvnode(taddnode(ttypeconvnode(right).left).right).left,false) and
|
|
not(might_have_sideeffects(ttypeconvnode(taddnode(ttypeconvnode(right).left).right).left)) then
|
|
begin
|
|
case ttypeconvnode(right).left.nodetype of
|
|
addn:
|
|
newinlinenodetype:=in_inc_x;
|
|
andn:
|
|
newinlinenodetype:=in_and_assign_x_y;
|
|
orn:
|
|
newinlinenodetype:=in_or_assign_x_y;
|
|
xorn:
|
|
newinlinenodetype:=in_xor_assign_x_y;
|
|
else
|
|
internalerror(2017051101);
|
|
end;
|
|
inserttypeconv_internal(taddnode(ttypeconvnode(right).left).left,left.resultdef);
|
|
if ttypeconvnode(right).left.nodetype=addn then
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
ttypeconvnode(taddnode(ttypeconvnode(right).left).right).left,ccallparanode.create(taddnode(ttypeconvnode(right).left).left,nil)))
|
|
else
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
taddnode(ttypeconvnode(right).left).left,ccallparanode.create(ttypeconvnode(taddnode(ttypeconvnode(right).left).right).left,nil)));
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
ttypeconvnode(taddnode(ttypeconvnode(right).left).right).left:=nil;
|
|
taddnode(ttypeconvnode(right).left).left:=nil;
|
|
exit;
|
|
end;
|
|
{$ifdef enable_shl_shr_assign_x_y}
|
|
{ replace i:=i shl k by in_shl_assign_x_y(i,k)
|
|
i:=i shr k by in_shr_assign_x_y(i,k)
|
|
|
|
this handles the case, where there are no implicit type conversions }
|
|
if (right.nodetype in [shln,shrn]) and
|
|
(tshlshrnode(right).left.isequal(left)) and
|
|
is_integer(tshlshrnode(right).left.resultdef) and
|
|
is_integer(tshlshrnode(right).right.resultdef) and
|
|
{$if not defined(cpu64bitalu) and not defined(cpucg64shiftsupport)}
|
|
not(is_64bitint(tshlshrnode(right).left.resultdef)) and
|
|
{$endif}
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(tshlshrnode(right).left,false) and
|
|
not(might_have_sideeffects(tshlshrnode(right).left)) then
|
|
begin
|
|
case right.nodetype of
|
|
shln:
|
|
newinlinenodetype:=in_shl_assign_x_y;
|
|
shrn:
|
|
newinlinenodetype:=in_shr_assign_x_y;
|
|
else
|
|
internalerror(2017051201);
|
|
end;
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
tshlshrnode(right).right,ccallparanode.create(tshlshrnode(right).left,nil)));
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
tshlshrnode(right).left:=nil;
|
|
tshlshrnode(right).right:=nil;
|
|
exit;
|
|
end;
|
|
{ replace i:=i shl k by in_shl_assign_x_y(i,k)
|
|
i:=i shr k by in_shr_assign_x_y(i,k)
|
|
|
|
this handles the case with two conversions (outer and inner):
|
|
outer typeconv: right
|
|
shl/shr: ttypeconvnode(right).left
|
|
inner typeconv: tshlshrnode(ttypeconvnode(right).left).left
|
|
right side 'i': ttypeconvnode(tshlshrnode(ttypeconvnode(right).left).left).left
|
|
right side 'k': tshlshrnode(ttypeconvnode(right).left).right }
|
|
if (right.nodetype=typeconvn) and
|
|
(ttypeconvnode(right).convtype=tc_int_2_int) and
|
|
(ttypeconvnode(right).left.nodetype in [shln,shrn]) and
|
|
is_integer(ttypeconvnode(right).left.resultdef) and
|
|
{$if not defined(cpu64bitalu) and not defined(cpucg64shiftsupport)}
|
|
not(is_64bitint(ttypeconvnode(right).left.resultdef)) and
|
|
{$endif}
|
|
(right.resultdef.size<=ttypeconvnode(right).left.resultdef.size) and
|
|
(tshlshrnode(ttypeconvnode(right).left).left.nodetype=typeconvn) and
|
|
(ttypeconvnode(tshlshrnode(ttypeconvnode(right).left).left).convtype=tc_int_2_int) and
|
|
are_equal_ints(right.resultdef,ttypeconvnode(tshlshrnode(ttypeconvnode(right).left).left).left.resultdef) and
|
|
ttypeconvnode(tshlshrnode(ttypeconvnode(right).left).left).left.isequal(left) and
|
|
is_integer(tshlshrnode(ttypeconvnode(right).left).left.resultdef) and
|
|
is_integer(tshlshrnode(ttypeconvnode(right).left).right.resultdef) and
|
|
is_integer(ttypeconvnode(tshlshrnode(ttypeconvnode(right).left).left).left.resultdef) and
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(ttypeconvnode(tshlshrnode(ttypeconvnode(right).left).left).left,false) and
|
|
not(might_have_sideeffects(ttypeconvnode(tshlshrnode(ttypeconvnode(right).left).left).left)) then
|
|
begin
|
|
case ttypeconvnode(right).left.nodetype of
|
|
shln:
|
|
newinlinenodetype:=in_shl_assign_x_y;
|
|
shrn:
|
|
newinlinenodetype:=in_shr_assign_x_y;
|
|
else
|
|
internalerror(2017051201);
|
|
end;
|
|
inserttypeconv_internal(tshlshrnode(ttypeconvnode(right).left).right,left.resultdef);
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
tshlshrnode(ttypeconvnode(right).left).right,ccallparanode.create(ttypeconvnode(tshlshrnode(ttypeconvnode(right).left).left).left,nil)));
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
ttypeconvnode(tshlshrnode(ttypeconvnode(right).left).left).left:=nil;
|
|
tshlshrnode(ttypeconvnode(right).left).right:=nil;
|
|
exit;
|
|
end;
|
|
{$endif enable_shl_shr_assign_x_y}
|
|
{$if defined(enable_sar_assign_x_y) or defined(enable_rox_assign_x_y)}
|
|
{ replace i:=sar(i) by in_sar_assign_x_y(i,1)
|
|
i:=rol(i) by in_rol_assign_x_y(i,1)
|
|
i:=ror(i) by in_ror_assign_x_y(i,1)
|
|
|
|
this handles the case, where there are no implicit type conversions }
|
|
if (right.nodetype=inlinen) and
|
|
(tinlinenode(right).inlinenumber in [
|
|
{$ifdef enable_sar_assign_x_y}
|
|
in_sar_x{$ifdef enable_rox_assign_x_y},{$endif}
|
|
{$endif enable_sar_assign_x_y}
|
|
{$ifdef enable_rox_assign_x_y}
|
|
in_rol_x,in_ror_x
|
|
{$endif enable_rox_assign_x_y}
|
|
]) and
|
|
(tinlinenode(right).left.isequal(left)) and
|
|
is_integer(tinlinenode(right).left.resultdef) and
|
|
{$if not defined(cpu64bitalu) and not defined(cpucg64shiftsupport)}
|
|
not(is_64bitint(tinlinenode(right).left.resultdef)) and
|
|
{$endif}
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(tinlinenode(right).left,false) and
|
|
not(might_have_sideeffects(tinlinenode(right).left)) then
|
|
begin
|
|
case tinlinenode(right).inlinenumber of
|
|
in_sar_x:
|
|
newinlinenodetype:=in_sar_assign_x_y;
|
|
in_rol_x:
|
|
newinlinenodetype:=in_rol_assign_x_y;
|
|
in_ror_x:
|
|
newinlinenodetype:=in_ror_assign_x_y;
|
|
else
|
|
internalerror(2017071701);
|
|
end;
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
cordconstnode.create(1,u8inttype,false),ccallparanode.create(tinlinenode(right).left,nil)));
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
tinlinenode(right).left:=nil;
|
|
exit;
|
|
end;
|
|
{ replace i:=sar(i) by in_sar_assign_x_y(i,1)
|
|
i:=rol(i) by in_rol_assign_x_y(i,1)
|
|
i:=ror(i) by in_ror_assign_x_y(i,1)
|
|
|
|
this handles the case with type conversions:
|
|
outer typeconv: right
|
|
sar/rol/ror inline node: ttypeconvnode(right).left
|
|
inner typeconv: tinlinenode(ttypeconvnode(right).left).left
|
|
right side 'i': ttypeconvnode(tinlinenode(ttypeconvnode(right).left).left).left }
|
|
if (right.nodetype=typeconvn) and
|
|
(ttypeconvnode(right).convtype=tc_int_2_int) and
|
|
(ttypeconvnode(right).left.nodetype=inlinen) and
|
|
(tinlinenode(ttypeconvnode(right).left).inlinenumber in [
|
|
{$ifdef enable_sar_assign_x_y}
|
|
in_sar_x{$ifdef enable_rox_assign_x_y},{$endif}
|
|
{$endif enable_sar_assign_x_y}
|
|
{$ifdef enable_rox_assign_x_y}
|
|
in_rol_x,in_ror_x
|
|
{$endif enable_rox_assign_x_y}
|
|
]) and
|
|
is_integer(ttypeconvnode(right).left.resultdef) and
|
|
(right.resultdef.size=ttypeconvnode(right).left.resultdef.size) and
|
|
(tinlinenode(ttypeconvnode(right).left).left.nodetype=typeconvn) and
|
|
(ttypeconvnode(tinlinenode(ttypeconvnode(right).left).left).convtype=tc_int_2_int) and
|
|
are_equal_ints(right.resultdef,ttypeconvnode(tinlinenode(ttypeconvnode(right).left).left).left.resultdef) and
|
|
ttypeconvnode(tinlinenode(ttypeconvnode(right).left).left).left.isequal(left) and
|
|
is_integer(ttypeconvnode(tinlinenode(ttypeconvnode(right).left).left).left.resultdef) and
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(ttypeconvnode(tinlinenode(ttypeconvnode(right).left).left).left,false) and
|
|
not(might_have_sideeffects(ttypeconvnode(tinlinenode(ttypeconvnode(right).left).left).left)) then
|
|
begin
|
|
case tinlinenode(ttypeconvnode(right).left).inlinenumber of
|
|
in_sar_x:
|
|
newinlinenodetype:=in_sar_assign_x_y;
|
|
in_rol_x:
|
|
newinlinenodetype:=in_rol_assign_x_y;
|
|
in_ror_x:
|
|
newinlinenodetype:=in_ror_assign_x_y;
|
|
else
|
|
internalerror(2017071801);
|
|
end;
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
cordconstnode.create(1,u8inttype,false),ccallparanode.create(
|
|
ttypeconvnode(tinlinenode(ttypeconvnode(right).left).left).left,nil)));
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
ttypeconvnode(tinlinenode(ttypeconvnode(right).left).left).left:=nil;
|
|
exit;
|
|
end;
|
|
{ replace i:=sar(i,k) by in_sar_assign_x_y(i,k)
|
|
i:=rol(i,k) by in_rol_assign_x_y(i,k)
|
|
i:=ror(i,k) by in_ror_assign_x_y(i,k)
|
|
|
|
this handles the case, where there are no implicit type conversions }
|
|
if (right.nodetype=inlinen) and
|
|
(tinlinenode(right).inlinenumber in [
|
|
{$ifdef enable_sar_assign_x_y}
|
|
in_sar_x_y{$ifdef enable_rox_assign_x_y},{$endif}
|
|
{$endif enable_sar_assign_x_y}
|
|
{$ifdef enable_rox_assign_x_y}
|
|
in_rol_x_y,in_ror_x_y
|
|
{$endif enable_rox_assign_x_y}
|
|
]) and
|
|
(tinlinenode(right).left.nodetype=callparan) and
|
|
tcallparanode(tcallparanode(tinlinenode(right).left).right).left.isequal(left) and
|
|
is_integer(tcallparanode(tcallparanode(tinlinenode(right).left).right).left.resultdef) and
|
|
{$if not defined(cpu64bitalu) and not defined(cpucg64shiftsupport)}
|
|
not(is_64bitint(tcallparanode(tcallparanode(tinlinenode(right).left).right).left.resultdef)) and
|
|
{$endif}
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(tcallparanode(tcallparanode(tinlinenode(right).left).right).left,false) and
|
|
not(might_have_sideeffects(tcallparanode(tcallparanode(tinlinenode(right).left).right).left)) then
|
|
begin
|
|
case tinlinenode(right).inlinenumber of
|
|
in_sar_x_y:
|
|
newinlinenodetype:=in_sar_assign_x_y;
|
|
in_rol_x_y:
|
|
newinlinenodetype:=in_rol_assign_x_y;
|
|
in_ror_x_y:
|
|
newinlinenodetype:=in_ror_assign_x_y;
|
|
else
|
|
internalerror(2017071701);
|
|
end;
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
tcallparanode(tinlinenode(right).left).left,
|
|
ccallparanode.create(tcallparanode(tcallparanode(tinlinenode(right).left).right).left,nil)));
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
tcallparanode(tinlinenode(right).left).left:=nil;
|
|
tcallparanode(tcallparanode(tinlinenode(right).left).right).left:=nil;
|
|
exit;
|
|
end;
|
|
{ replace i:=sar(i,k) by in_sar_assign_x_y(i,k)
|
|
i:=rol(i,k) by in_rol_assign_x_y(i,k)
|
|
i:=ror(i,k) by in_ror_assign_x_y(i,k)
|
|
|
|
this handles the case with two conversions (outer and inner):
|
|
outer typeconv: right
|
|
sar/rol/ror inline node: ttypeconvnode(right).left
|
|
inner typeconv: tcallparanode(tcallparanode(tinlinenode(ttypeconvnode(right).left).left).right).left
|
|
right side 'i': ttypeconvnode(tcallparanode(tcallparanode(tinlinenode(ttypeconvnode(right).left).left).right).left).left
|
|
right side 'k': tcallparanode(tinlinenode(ttypeconvnode(right).left).left).left }
|
|
if (right.nodetype=typeconvn) and
|
|
(ttypeconvnode(right).convtype=tc_int_2_int) and
|
|
(ttypeconvnode(right).left.nodetype=inlinen) and
|
|
(tinlinenode(ttypeconvnode(right).left).inlinenumber in [
|
|
{$ifdef enable_sar_assign_x_y}
|
|
in_sar_x_y{$ifdef enable_rox_assign_x_y},{$endif}
|
|
{$endif enable_sar_assign_x_y}
|
|
{$ifdef enable_rox_assign_x_y}
|
|
in_rol_x_y,in_ror_x_y
|
|
{$endif enable_rox_assign_x_y}
|
|
]) and
|
|
is_integer(ttypeconvnode(right).left.resultdef) and
|
|
(right.resultdef.size=ttypeconvnode(right).left.resultdef.size) and
|
|
(tinlinenode(ttypeconvnode(right).left).left.nodetype=callparan) and
|
|
(tcallparanode(tcallparanode(tinlinenode(ttypeconvnode(right).left).left).right).left.nodetype=typeconvn) and
|
|
(ttypeconvnode(tcallparanode(tcallparanode(tinlinenode(ttypeconvnode(right).left).left).right).left).convtype=tc_int_2_int) and
|
|
are_equal_ints(right.resultdef,ttypeconvnode(tcallparanode(tcallparanode(tinlinenode(ttypeconvnode(right).left).left).right).left).left.resultdef) and
|
|
ttypeconvnode(tcallparanode(tcallparanode(tinlinenode(ttypeconvnode(right).left).left).right).left).left.isequal(left) and
|
|
is_integer(ttypeconvnode(tcallparanode(tcallparanode(tinlinenode(ttypeconvnode(right).left).left).right).left).left.resultdef) and
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(ttypeconvnode(tcallparanode(tcallparanode(tinlinenode(ttypeconvnode(right).left).left).right).left).left,false) and
|
|
not(might_have_sideeffects(ttypeconvnode(tcallparanode(tcallparanode(tinlinenode(ttypeconvnode(right).left).left).right).left).left)) then
|
|
begin
|
|
case tinlinenode(ttypeconvnode(right).left).inlinenumber of
|
|
in_sar_x_y:
|
|
newinlinenodetype:=in_sar_assign_x_y;
|
|
in_rol_x_y:
|
|
newinlinenodetype:=in_rol_assign_x_y;
|
|
in_ror_x_y:
|
|
newinlinenodetype:=in_ror_assign_x_y;
|
|
else
|
|
internalerror(2017072002);
|
|
end;
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ccallparanode.create(
|
|
tcallparanode(tinlinenode(ttypeconvnode(right).left).left).left,
|
|
ccallparanode.create(ttypeconvnode(tcallparanode(tcallparanode(tinlinenode(ttypeconvnode(right).left).left).right).left).left,nil)));
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
tcallparanode(tinlinenode(ttypeconvnode(right).left).left).left:=nil;
|
|
ttypeconvnode(tcallparanode(tcallparanode(tinlinenode(ttypeconvnode(right).left).left).right).left).left:=nil;
|
|
exit;
|
|
end;
|
|
{$endif enable_sar_assign_x_y or enable_rox_assign_x_y}
|
|
{ replace i:=not i by in_not_assign_x(i)
|
|
i:=-i by in_neg_assign_x(i)
|
|
|
|
this handles the case, where there are no implicit type conversions }
|
|
if (right.nodetype in [notn,unaryminusn]) and
|
|
(tunarynode(right).left.isequal(left)) and
|
|
is_integer(tunarynode(right).left.resultdef) and
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(tunarynode(right).left,false) and
|
|
not(might_have_sideeffects(tunarynode(right).left)) then
|
|
begin
|
|
if right.nodetype=notn then
|
|
newinlinenodetype:=in_not_assign_x
|
|
else
|
|
newinlinenodetype:=in_neg_assign_x;
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,tunarynode(right).left);
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
tunarynode(right).left:=nil;
|
|
exit;
|
|
end;
|
|
{ replace i:=not i by in_not_assign_x(i)
|
|
i:=-i by in_neg_assign_x(i)
|
|
|
|
this handles the case with type conversions:
|
|
outer typeconv: right
|
|
neg/not: ttypeconvnode(right).left
|
|
inner typeconv: tunarynode(ttypeconvnode(right).left).left
|
|
right side 'i': ttypeconvnode(tunarynode(ttypeconvnode(right).left).left).left }
|
|
if (right.nodetype=typeconvn) and
|
|
(ttypeconvnode(right).convtype=tc_int_2_int) and
|
|
(ttypeconvnode(right).left.nodetype in [notn,unaryminusn]) and
|
|
is_integer(ttypeconvnode(right).left.resultdef) and
|
|
(right.resultdef.size<=ttypeconvnode(right).left.resultdef.size) and
|
|
(tunarynode(ttypeconvnode(right).left).left.nodetype=typeconvn) and
|
|
(ttypeconvnode(tunarynode(ttypeconvnode(right).left).left).convtype=tc_int_2_int) and
|
|
are_equal_ints(right.resultdef,ttypeconvnode(tunarynode(ttypeconvnode(right).left).left).left.resultdef) and
|
|
ttypeconvnode(tunarynode(ttypeconvnode(right).left).left).left.isequal(left) and
|
|
is_integer(ttypeconvnode(tunarynode(ttypeconvnode(right).left).left).left.resultdef) and
|
|
((localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
((right.localswitches*[cs_check_overflow,cs_check_range])=[]) and
|
|
valid_for_var(ttypeconvnode(tunarynode(ttypeconvnode(right).left).left).left,false) and
|
|
not(might_have_sideeffects(ttypeconvnode(tunarynode(ttypeconvnode(right).left).left).left)) then
|
|
begin
|
|
if ttypeconvnode(right).left.nodetype=notn then
|
|
newinlinenodetype:=in_not_assign_x
|
|
else
|
|
newinlinenodetype:=in_neg_assign_x;
|
|
result:=cinlinenode.createintern(
|
|
newinlinenodetype,false,ttypeconvnode(tunarynode(ttypeconvnode(right).left).left).left);
|
|
result.localswitches:=localswitches;
|
|
result.fileinfo:=fileinfo;
|
|
result.verbosity:=verbosity;
|
|
ttypeconvnode(tunarynode(ttypeconvnode(right).left).left).left:=nil;
|
|
exit;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
function try_opt_node(var n: tnode; arg: pointer): foreachnoderesult;
|
|
var
|
|
hn : tnode;
|
|
begin
|
|
result:=fen_false;
|
|
if n.nodetype=assignn then
|
|
begin
|
|
hn:=try_opt_assignmentnode(tassignmentnode(n));
|
|
if assigned(hn) then
|
|
begin
|
|
n.free;
|
|
n:=hn;
|
|
typecheckpass(n);
|
|
do_firstpass(n);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure do_optloadmodifystore(var rootnode : tnode);
|
|
begin
|
|
foreachnodestatic(pm_postprocess,rootnode,@try_opt_node,nil);
|
|
end;
|
|
|
|
end.
|
|
|