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https://gitlab.com/freepascal.org/fpc/source.git
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+ nmat refactored to have simplify
git-svn-id: trunk@142 -
This commit is contained in:
florian
parent
9c717f2a35
commit
e920b10d7a
@ -1,5 +1,5 @@
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{
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Copyright (c) 2000-2002 by Florian Klaempfl
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Copyright (c) 2000-2005 by Florian Klaempfl
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Type checking and register allocation for math nodes
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@ -32,6 +32,7 @@ interface
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tmoddivnode = class(tbinopnode)
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function pass_1 : tnode;override;
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function det_resulttype:tnode;override;
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function simplify : tnode;override;
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protected
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{$ifndef cpu64bit}
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{ override the following if you want to implement }
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@ -46,6 +47,7 @@ interface
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tshlshrnode = class(tbinopnode)
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function pass_1 : tnode;override;
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function det_resulttype:tnode;override;
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function simplify : tnode;override;
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{$ifndef cpu64bit}
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{ override the following if you want to implement }
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{ parts explicitely in the code generator (CEC)
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@ -61,6 +63,7 @@ interface
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constructor create(expr : tnode);virtual;
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function pass_1 : tnode;override;
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function det_resulttype:tnode;override;
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function simplify : tnode;override;
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end;
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tunaryminusnodeclass = class of tunaryminusnode;
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@ -68,6 +71,7 @@ interface
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constructor create(expr : tnode);virtual;
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function pass_1 : tnode;override;
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function det_resulttype:tnode;override;
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function simplify : tnode;override;
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{$ifdef state_tracking}
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function track_state_pass(exec_known:boolean):boolean;override;
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{$endif}
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@ -80,7 +84,6 @@ interface
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cunaryminusnode : tunaryminusnodeclass;
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cnotnode : tnotnodeclass;
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implementation
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uses
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@ -96,11 +99,47 @@ implementation
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TMODDIVNODE
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****************************************************************************}
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function tmoddivnode.simplify:tnode;
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var
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t : tnode;
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rd,ld : torddef;
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rv,lv : tconstexprint;
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begin
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result:=nil;
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if is_constintnode(right) and is_constintnode(left) then
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begin
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rd:=torddef(right.resulttype.def);
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ld:=torddef(left.resulttype.def);
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rv:=tordconstnode(right).value;
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lv:=tordconstnode(left).value;
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case nodetype of
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modn:
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if (torddef(ld).typ <> u64bit) or
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(torddef(rd).typ <> u64bit) then
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t:=genintconstnode(lv mod rv)
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else
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t:=genintconstnode(int64(qword(lv) mod qword(rv)));
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divn:
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if (torddef(ld).typ <> u64bit) or
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(torddef(rd).typ <> u64bit) then
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t:=genintconstnode(lv div rv)
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else
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t:=genintconstnode(int64(qword(lv) div qword(rv)));
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end;
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result:=t;
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exit;
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end;
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end;
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function tmoddivnode.det_resulttype:tnode;
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var
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hp,t : tnode;
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rd,ld : torddef;
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rv,lv : tconstexprint;
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rv : tconstexprint;
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begin
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result:=nil;
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resulttypepass(left);
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@ -131,28 +170,11 @@ implementation
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{ recover }
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rv:=1;
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end;
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if is_constintnode(left) then
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begin
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lv:=tordconstnode(left).value;
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end;
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case nodetype of
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modn:
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if (torddef(ld).typ <> u64bit) or
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(torddef(rd).typ <> u64bit) then
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t:=genintconstnode(lv mod rv)
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else
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t:=genintconstnode(int64(qword(lv) mod qword(rv)));
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divn:
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if (torddef(ld).typ <> u64bit) or
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(torddef(rd).typ <> u64bit) then
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t:=genintconstnode(lv div rv)
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else
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t:=genintconstnode(int64(qword(lv) div qword(rv)));
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end;
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result:=t;
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result:=simplify;
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if assigned(result) then
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exit;
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end;
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end;
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{ allow operator overloading }
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t:=self;
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@ -425,18 +447,11 @@ implementation
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TSHLSHRNODE
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****************************************************************************}
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function tshlshrnode.det_resulttype:tnode;
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function tshlshrnode.simplify:tnode;
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var
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t : tnode;
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begin
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result:=nil;
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resulttypepass(left);
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resulttypepass(right);
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set_varstate(right,vs_used,[vsf_must_be_valid]);
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set_varstate(left,vs_used,[vsf_must_be_valid]);
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if codegenerror then
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exit;
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{ constant folding }
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if is_constintnode(left) and is_constintnode(right) then
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begin
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@ -450,6 +465,25 @@ implementation
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exit;
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end;
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end;
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function tshlshrnode.det_resulttype:tnode;
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var
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t : tnode;
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begin
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result:=nil;
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resulttypepass(left);
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resulttypepass(right);
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set_varstate(right,vs_used,[vsf_must_be_valid]);
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set_varstate(left,vs_used,[vsf_must_be_valid]);
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if codegenerror then
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exit;
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result:=simplify;
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if assigned(result) then
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exit;
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{ allow operator overloading }
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t:=self;
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if isbinaryoverloaded(t) then
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@ -535,16 +569,9 @@ implementation
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end;
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function tunaryminusnode.det_resulttype : tnode;
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var
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t : tnode;
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function tunaryminusnode.simplify:tnode;
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begin
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result:=nil;
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resulttypepass(left);
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set_varstate(left,vs_used,[vsf_must_be_valid]);
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if codegenerror then
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exit;
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{ constant folding }
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if is_constintnode(left) then
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begin
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@ -558,6 +585,22 @@ implementation
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left:=nil;
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exit;
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end;
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end;
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function tunaryminusnode.det_resulttype : tnode;
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var
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t : tnode;
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begin
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result:=nil;
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resulttypepass(left);
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set_varstate(left,vs_used,[vsf_must_be_valid]);
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if codegenerror then
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exit;
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result:=simplify;
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if assigned(result) then
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exit;
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resulttype:=left.resulttype;
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if (left.resulttype.def.deftype=floatdef) then
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@ -666,26 +709,19 @@ implementation
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end;
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function tnotnode.det_resulttype : tnode;
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function tnotnode.simplify:tnode;
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var
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v : tconstexprint;
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t : tnode;
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tt : ttype;
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v : tconstexprint;
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begin
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result:=nil;
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resulttypepass(left);
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set_varstate(left,vs_used,[]);
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if codegenerror then
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exit;
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resulttype:=left.resulttype;
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{ Try optmimizing ourself away }
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if left.nodetype=notn then
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begin
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{ Double not. Remove both }
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result:=Tnotnode(left).left;
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Tnotnode(left).left:=nil;
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tnotnode(left).left:=nil;
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exit;
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end;
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@ -739,6 +775,24 @@ implementation
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result:=t;
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exit;
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end;
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end;
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function tnotnode.det_resulttype : tnode;
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var
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t : tnode;
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begin
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result:=nil;
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resulttypepass(left);
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set_varstate(left,vs_used,[]);
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if codegenerror then
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exit;
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resulttype:=left.resulttype;
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result:=simplify;
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if assigned(result) then
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exit;
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if is_boolean(resulttype.def) then
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begin
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