Skip to content
Projects
Groups
Snippets
Help
This project
Loading...
Sign in / Register
Toggle navigation
A
abc
Overview
Overview
Details
Activity
Cycle Analytics
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Charts
Issues
0
Issues
0
List
Board
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Charts
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Charts
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
lvzhengyang
abc
Commits
d52dafa6
Commit
d52dafa6
authored
Jan 12, 2017
by
Alan Mishchenko
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Updates to arithmetic verification.
parent
55b6b4bd
Expand all
Hide whitespace changes
Inline
Side-by-side
Showing
8 changed files
with
102 additions
and
9 deletions
+102
-9
abclib.dsp
+4
-0
src/aig/gia/gia.h
+1
-0
src/aig/gia/giaTruth.c
+51
-0
src/base/wlc/wlcBlast.c
+26
-0
src/proof/acec/acecInt.h
+2
-0
src/proof/acec/acecMult.c
+0
-0
src/proof/acec/acecTree.c
+17
-9
src/proof/acec/module.make
+1
-0
No files found.
abclib.dsp
View file @
d52dafa6
...
@@ -5507,6 +5507,10 @@ SOURCE=.\src\proof\acec\acecInt.h
...
@@ -5507,6 +5507,10 @@ SOURCE=.\src\proof\acec\acecInt.h
# End Source File
# End Source File
# Begin Source File
# Begin Source File
SOURCE=.\src\proof\acec\acecMult.c
# End Source File
# Begin Source File
SOURCE=.\src\proof\acec\acecNorm.c
SOURCE=.\src\proof\acec\acecNorm.c
# End Source File
# End Source File
# Begin Source File
# Begin Source File
...
...
src/aig/gia/gia.h
View file @
d52dafa6
...
@@ -1514,6 +1514,7 @@ extern int Gia_ManVerifyWithBoxes( Gia_Man_t * pGia, int nBTLimi
...
@@ -1514,6 +1514,7 @@ extern int Gia_ManVerifyWithBoxes( Gia_Man_t * pGia, int nBTLimi
extern
word
Gia_LutComputeTruth6
(
Gia_Man_t
*
p
,
int
iObj
,
Vec_Wrd_t
*
vTruths
);
extern
word
Gia_LutComputeTruth6
(
Gia_Man_t
*
p
,
int
iObj
,
Vec_Wrd_t
*
vTruths
);
extern
word
Gia_ObjComputeTruthTable6Lut
(
Gia_Man_t
*
p
,
int
iObj
,
Vec_Wrd_t
*
vTemp
);
extern
word
Gia_ObjComputeTruthTable6Lut
(
Gia_Man_t
*
p
,
int
iObj
,
Vec_Wrd_t
*
vTemp
);
extern
word
Gia_ObjComputeTruthTable6
(
Gia_Man_t
*
p
,
Gia_Obj_t
*
pObj
,
Vec_Int_t
*
vSupp
,
Vec_Wrd_t
*
vTruths
);
extern
word
Gia_ObjComputeTruthTable6
(
Gia_Man_t
*
p
,
Gia_Obj_t
*
pObj
,
Vec_Int_t
*
vSupp
,
Vec_Wrd_t
*
vTruths
);
extern
word
Gia_ObjComputeTruth6Cis
(
Gia_Man_t
*
p
,
int
iLit
,
Vec_Int_t
*
vSupp
,
Vec_Wrd_t
*
vTemp
);
extern
void
Gia_ObjCollectInternal
(
Gia_Man_t
*
p
,
Gia_Obj_t
*
pObj
);
extern
void
Gia_ObjCollectInternal
(
Gia_Man_t
*
p
,
Gia_Obj_t
*
pObj
);
extern
word
*
Gia_ObjComputeTruthTable
(
Gia_Man_t
*
p
,
Gia_Obj_t
*
pObj
);
extern
word
*
Gia_ObjComputeTruthTable
(
Gia_Man_t
*
p
,
Gia_Obj_t
*
pObj
);
extern
void
Gia_ObjComputeTruthTableStart
(
Gia_Man_t
*
p
,
int
nVarsMax
);
extern
void
Gia_ObjComputeTruthTableStart
(
Gia_Man_t
*
p
,
int
nVarsMax
);
...
...
src/aig/gia/giaTruth.c
View file @
d52dafa6
...
@@ -139,6 +139,57 @@ word Gia_ObjComputeTruthTable6Lut( Gia_Man_t * p, int iObj, Vec_Wrd_t * vTemp )
...
@@ -139,6 +139,57 @@ word Gia_ObjComputeTruthTable6Lut( Gia_Man_t * p, int iObj, Vec_Wrd_t * vTemp )
/**Function*************************************************************
/**Function*************************************************************
Synopsis [Computes truth table up to 6 inputs in terms of CIs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
word
Gia_ObjComputeTruth6
(
Gia_Man_t
*
p
,
int
iObj
,
Vec_Int_t
*
vSupp
,
Vec_Wrd_t
*
vTemp
)
{
int
i
,
Fanin
;
assert
(
Vec_WrdSize
(
vTemp
)
==
Gia_ManObjNum
(
p
)
);
assert
(
Vec_IntSize
(
vSupp
)
<=
6
);
Gia_ManIncrementTravId
(
p
);
Vec_IntForEachEntry
(
vSupp
,
Fanin
,
i
)
{
Gia_ObjSetTravIdCurrentId
(
p
,
Fanin
);
Vec_WrdWriteEntry
(
vTemp
,
Fanin
,
s_Truth6
[
i
]
);
}
Gia_ObjComputeTruthTable6Lut_rec
(
p
,
iObj
,
vTemp
);
return
Vec_WrdEntry
(
vTemp
,
iObj
);
}
void
Gia_ObjComputeTruth6CisSupport_rec
(
Gia_Man_t
*
p
,
int
iObj
,
Vec_Int_t
*
vSupp
)
{
Gia_Obj_t
*
pObj
=
Gia_ManObj
(
p
,
iObj
);
if
(
Gia_ObjIsTravIdCurrentId
(
p
,
iObj
)
)
return
;
Gia_ObjSetTravIdCurrentId
(
p
,
iObj
);
if
(
Gia_ObjIsCi
(
pObj
)
)
{
Vec_IntPushOrder
(
vSupp
,
iObj
);
return
;
}
assert
(
Gia_ObjIsAnd
(
pObj
)
);
Gia_ObjComputeTruth6CisSupport_rec
(
p
,
Gia_ObjFaninId0p
(
p
,
pObj
),
vSupp
);
Gia_ObjComputeTruth6CisSupport_rec
(
p
,
Gia_ObjFaninId1p
(
p
,
pObj
),
vSupp
);
}
word
Gia_ObjComputeTruth6Cis
(
Gia_Man_t
*
p
,
int
iLit
,
Vec_Int_t
*
vSupp
,
Vec_Wrd_t
*
vTemp
)
{
int
iObj
=
Abc_Lit2Var
(
iLit
);
Vec_IntClear
(
vSupp
);
if
(
!
iObj
)
return
Abc_LitIsCompl
(
iLit
)
?
~
(
word
)
0
:
(
word
)
0
;
Gia_ManIncrementTravId
(
p
);
Gia_ObjComputeTruth6CisSupport_rec
(
p
,
iObj
,
vSupp
);
Gia_ObjComputeTruth6
(
p
,
iObj
,
vSupp
,
vTemp
);
return
Abc_LitIsCompl
(
iLit
)
?
~
Vec_WrdEntry
(
vTemp
,
iObj
)
:
Vec_WrdEntry
(
vTemp
,
iObj
);
}
/**Function*************************************************************
Synopsis [Computes truth table up to 6 inputs.]
Synopsis [Computes truth table up to 6 inputs.]
Description []
Description []
...
...
src/base/wlc/wlcBlast.c
View file @
d52dafa6
...
@@ -643,6 +643,31 @@ void Wlc_IntInsert( Vec_Int_t * vProd, Vec_Int_t * vLevel, int Node, int Level )
...
@@ -643,6 +643,31 @@ void Wlc_IntInsert( Vec_Int_t * vProd, Vec_Int_t * vLevel, int Node, int Level )
Vec_IntInsert
(
vProd
,
i
+
1
,
Node
);
Vec_IntInsert
(
vProd
,
i
+
1
,
Node
);
Vec_IntInsert
(
vLevel
,
i
+
1
,
Level
);
Vec_IntInsert
(
vLevel
,
i
+
1
,
Level
);
}
}
void
Wlc_BlastPrintMatrix
(
Gia_Man_t
*
p
,
Vec_Wec_t
*
vProds
)
{
Vec_Int_t
*
vSupp
=
Vec_IntAlloc
(
100
);
Vec_Wrd_t
*
vTemp
=
Vec_WrdStart
(
Gia_ManObjNum
(
p
)
);
Vec_Int_t
*
vLevel
;
word
Truth
;
int
i
,
k
,
iLit
;
Vec_WecForEachLevel
(
vProds
,
vLevel
,
i
)
Vec_IntForEachEntry
(
vLevel
,
iLit
,
k
)
{
printf
(
"Obj = %4d : "
,
Abc_Lit2Var
(
iLit
)
);
printf
(
"Compl = %d "
,
Abc_LitIsCompl
(
iLit
)
);
printf
(
"Rank = %2d "
,
i
);
Truth
=
Gia_ObjComputeTruth6Cis
(
p
,
iLit
,
vSupp
,
vTemp
);
Extra_PrintHex
(
stdout
,
(
unsigned
*
)
&
Truth
,
Vec_IntSize
(
vSupp
)
);
if
(
Vec_IntSize
(
vSupp
)
==
4
)
printf
(
" "
);
if
(
Vec_IntSize
(
vSupp
)
==
3
)
printf
(
" "
);
if
(
Vec_IntSize
(
vSupp
)
<=
2
)
printf
(
" "
);
printf
(
" "
);
Vec_IntPrint
(
vSupp
);
if
(
k
==
Vec_IntSize
(
vLevel
)
-
1
)
printf
(
"
\n
"
);
}
Vec_IntFree
(
vSupp
);
Vec_WrdFree
(
vTemp
);
}
void
Wlc_BlastReduceMatrix
(
Gia_Man_t
*
pNew
,
Vec_Wec_t
*
vProds
,
Vec_Wec_t
*
vLevels
,
Vec_Int_t
*
vRes
)
void
Wlc_BlastReduceMatrix
(
Gia_Man_t
*
pNew
,
Vec_Wec_t
*
vProds
,
Vec_Wec_t
*
vLevels
,
Vec_Int_t
*
vRes
)
{
{
Vec_Int_t
*
vLevel
,
*
vProd
;
Vec_Int_t
*
vLevel
,
*
vProd
;
...
@@ -812,6 +837,7 @@ void Wlc_BlastBooth( Gia_Man_t * pNew, int * pArgA, int * pArgB, int nArgA, int
...
@@ -812,6 +837,7 @@ void Wlc_BlastBooth( Gia_Man_t * pNew, int * pArgA, int * pArgB, int nArgA, int
Vec_WecPush
(
vLevels
,
k
,
0
);
Vec_WecPush
(
vLevels
,
k
,
0
);
}
}
//Vec_WecPrint( vProds, 0 );
//Vec_WecPrint( vProds, 0 );
//Wlc_BlastPrintMatrix( pNew, vProds );
//printf( "Cutoff ID for partial products = %d.\n", Gia_ManObjNum(pNew) );
//printf( "Cutoff ID for partial products = %d.\n", Gia_ManObjNum(pNew) );
Wlc_BlastReduceMatrix
(
pNew
,
vProds
,
vLevels
,
vRes
);
Wlc_BlastReduceMatrix
(
pNew
,
vProds
,
vLevels
,
vRes
);
...
...
src/proof/acec/acecInt.h
View file @
d52dafa6
...
@@ -70,6 +70,8 @@ struct Acec_Box_t_
...
@@ -70,6 +70,8 @@ struct Acec_Box_t_
/*=== acecCo.c ========================================================*/
/*=== acecCo.c ========================================================*/
extern
Vec_Int_t
*
Gia_PolynCoreOrder
(
Gia_Man_t
*
pGia
,
Vec_Int_t
*
vAdds
,
Vec_Int_t
*
vAddCos
,
Vec_Int_t
**
pvIns
,
Vec_Int_t
**
pvOuts
);
extern
Vec_Int_t
*
Gia_PolynCoreOrder
(
Gia_Man_t
*
pGia
,
Vec_Int_t
*
vAdds
,
Vec_Int_t
*
vAddCos
,
Vec_Int_t
**
pvIns
,
Vec_Int_t
**
pvOuts
);
extern
Vec_Wec_t
*
Gia_PolynCoreOrderArray
(
Gia_Man_t
*
pGia
,
Vec_Int_t
*
vAdds
,
Vec_Int_t
*
vRootBoxes
);
extern
Vec_Wec_t
*
Gia_PolynCoreOrderArray
(
Gia_Man_t
*
pGia
,
Vec_Int_t
*
vAdds
,
Vec_Int_t
*
vRootBoxes
);
/*=== acecMult.c ========================================================*/
extern
Vec_Int_t
*
Acec_MultDetectInputs
(
Gia_Man_t
*
p
,
Vec_Wec_t
*
vLeafLits
,
Vec_Wec_t
*
vRootLits
);
/*=== acecNorm.c ========================================================*/
/*=== acecNorm.c ========================================================*/
extern
Gia_Man_t
*
Acec_InsertBox
(
Acec_Box_t
*
pBox
,
int
fAll
);
extern
Gia_Man_t
*
Acec_InsertBox
(
Acec_Box_t
*
pBox
,
int
fAll
);
/*=== acecTree.c ========================================================*/
/*=== acecTree.c ========================================================*/
...
...
src/proof/acec/acecMult.c
0 → 100644
View file @
d52dafa6
This diff is collapsed.
Click to expand it.
src/proof/acec/acecTree.c
View file @
d52dafa6
...
@@ -307,16 +307,16 @@ void Acec_TreeVerifyPhaseOne( Gia_Man_t * p, Vec_Int_t * vAdds, int iBox, Vec_Bi
...
@@ -307,16 +307,16 @@ void Acec_TreeVerifyPhaseOne( Gia_Man_t * p, Vec_Int_t * vAdds, int iBox, Vec_Bi
if
(
fFadd
)
// FADD
if
(
fFadd
)
// FADD
{
{
if
(
TruthXor
!=
0x96
)
if
(
TruthXor
!=
0x96
)
printf
(
"Fadd %d sum
is wrong.
\n
"
,
iBox
);
printf
(
"Fadd %d sum
%d is wrong.
\n
"
,
iBox
,
Vec_IntEntry
(
vAdds
,
6
*
iBox
+
3
)
);
if
(
TruthMaj
!=
0xE8
)
if
(
TruthMaj
!=
0xE8
)
printf
(
"Fadd %d carry
is wrong.
\n
"
,
iBox
);
printf
(
"Fadd %d carry
%d is wrong.
\n
"
,
iBox
,
Vec_IntEntry
(
vAdds
,
6
*
iBox
+
4
)
);
}
}
else
else
{
{
if
(
TruthXor
!=
0x66
)
if
(
TruthXor
!=
0x66
)
printf
(
"Hadd %d sum
is wrong.
\n
"
,
iBox
);
printf
(
"Hadd %d sum
%d is wrong.
\n
"
,
iBox
,
Vec_IntEntry
(
vAdds
,
6
*
iBox
+
3
)
);
if
(
TruthMaj
!=
0x88
)
if
(
TruthMaj
!=
0x88
)
printf
(
"Hadd %d carry
is wrong.
\n
"
,
iBox
);
printf
(
"Hadd %d carry
%d is wrong.
\n
"
,
iBox
,
Vec_IntEntry
(
vAdds
,
6
*
iBox
+
4
)
);
}
}
}
}
void
Acec_TreeVerifyPhases
(
Gia_Man_t
*
p
,
Vec_Int_t
*
vAdds
,
Vec_Wec_t
*
vBoxes
,
Vec_Bit_t
*
vPhase
)
void
Acec_TreeVerifyPhases
(
Gia_Man_t
*
p
,
Vec_Int_t
*
vAdds
,
Vec_Wec_t
*
vBoxes
,
Vec_Bit_t
*
vPhase
)
...
@@ -356,7 +356,9 @@ void Acec_TreePhases_rec( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vMap, in
...
@@ -356,7 +356,9 @@ void Acec_TreePhases_rec( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vMap, in
assert
(
Node
!=
0
);
assert
(
Node
!=
0
);
if
(
Vec_BitEntry
(
vVisit
,
Node
)
)
if
(
Vec_BitEntry
(
vVisit
,
Node
)
)
{
{
assert
(
Vec_BitEntry
(
vPhase
,
Node
)
==
fPhase
);
//assert( Vec_BitEntry(vPhase, Node) == fPhase );
if
(
Vec_BitEntry
(
vPhase
,
Node
)
!=
fPhase
)
printf
(
"Phase check failed for node %d.
\n
"
,
Node
);
return
;
return
;
}
}
Vec_BitWriteEntry
(
vVisit
,
Node
,
1
);
Vec_BitWriteEntry
(
vVisit
,
Node
,
1
);
...
@@ -386,7 +388,12 @@ void Acec_TreePhases_rec( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vMap, in
...
@@ -386,7 +388,12 @@ void Acec_TreePhases_rec( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vMap, in
Acec_TreePhases_rec
(
p
,
vAdds
,
vMap
,
iObj
,
fPhaseThis
,
vPhase
,
vInvHadds
,
vVisit
);
Acec_TreePhases_rec
(
p
,
vAdds
,
vMap
,
iObj
,
fPhaseThis
,
vPhase
,
vInvHadds
,
vVisit
);
}
}
if
(
Vec_BitEntry
(
vVisit
,
iXor
)
)
if
(
Vec_BitEntry
(
vVisit
,
iXor
)
)
assert
(
Vec_BitEntry
(
vPhase
,
iXor
)
==
fXorPhase
);
{
//assert( Vec_BitEntry(vPhase, iXor) == fXorPhase );
if
(
Vec_BitEntry
(
vPhase
,
iXor
)
!=
fXorPhase
)
printf
(
"Phase check failed for XOR %d.
\n
"
,
iXor
);
return
;
}
if
(
fXorPhase
)
if
(
fXorPhase
)
Vec_BitWriteEntry
(
vPhase
,
iXor
,
fXorPhase
);
Vec_BitWriteEntry
(
vPhase
,
iXor
,
fXorPhase
);
}
}
...
@@ -448,7 +455,7 @@ void Acec_PrintAdders( Vec_Wec_t * vBoxes, Vec_Int_t * vAdds )
...
@@ -448,7 +455,7 @@ void Acec_PrintAdders( Vec_Wec_t * vBoxes, Vec_Int_t * vAdds )
int
i
,
k
,
iBox
;
int
i
,
k
,
iBox
;
Vec_WecForEachLevel
(
vBoxes
,
vLevel
,
i
)
Vec_WecForEachLevel
(
vBoxes
,
vLevel
,
i
)
{
{
printf
(
" %4d :
{"
,
i
);
printf
(
" %4d :
%2d {"
,
i
,
Vec_IntSize
(
vLevel
)
);
Vec_IntForEachEntry
(
vLevel
,
iBox
,
k
)
Vec_IntForEachEntry
(
vLevel
,
iBox
,
k
)
printf
(
" %s%d=(%d,%d)"
,
Vec_IntEntry
(
vAdds
,
6
*
iBox
+
2
)
==
0
?
"*"
:
""
,
iBox
,
printf
(
" %s%d=(%d,%d)"
,
Vec_IntEntry
(
vAdds
,
6
*
iBox
+
2
)
==
0
?
"*"
:
""
,
iBox
,
Vec_IntEntry
(
vAdds
,
6
*
iBox
+
3
),
Vec_IntEntry
(
vAdds
,
6
*
iBox
+
4
)
);
Vec_IntEntry
(
vAdds
,
6
*
iBox
+
3
),
Vec_IntEntry
(
vAdds
,
6
*
iBox
+
4
)
);
...
@@ -461,7 +468,7 @@ void Vec_WecPrintLits( Vec_Wec_t * p )
...
@@ -461,7 +468,7 @@ void Vec_WecPrintLits( Vec_Wec_t * p )
int
i
,
k
,
Entry
;
int
i
,
k
,
Entry
;
Vec_WecForEachLevel
(
p
,
vVec
,
i
)
Vec_WecForEachLevel
(
p
,
vVec
,
i
)
{
{
printf
(
" %4d :
{"
,
i
);
printf
(
" %4d :
%2d {"
,
i
,
Vec_IntSize
(
vVec
)
);
Vec_IntForEachEntry
(
vVec
,
Entry
,
k
)
Vec_IntForEachEntry
(
vVec
,
Entry
,
k
)
printf
(
" %c%d"
,
Abc_LitIsCompl
(
Entry
)
?
'-'
:
'+'
,
Abc_Lit2Var
(
Entry
)
);
printf
(
" %c%d"
,
Abc_LitIsCompl
(
Entry
)
?
'-'
:
'+'
,
Abc_Lit2Var
(
Entry
)
);
printf
(
" }
\n
"
);
printf
(
" }
\n
"
);
...
@@ -473,7 +480,7 @@ void Acec_PrintRootLits( Vec_Wec_t * vRoots )
...
@@ -473,7 +480,7 @@ void Acec_PrintRootLits( Vec_Wec_t * vRoots )
int
i
,
k
,
iObj
;
int
i
,
k
,
iObj
;
Vec_WecForEachLevel
(
vRoots
,
vLevel
,
i
)
Vec_WecForEachLevel
(
vRoots
,
vLevel
,
i
)
{
{
printf
(
"Rank %d :
"
,
i
);
printf
(
"Rank %d :
%2d "
,
i
,
Vec_IntSize
(
vLevel
)
);
Vec_IntForEachEntry
(
vLevel
,
iObj
,
k
)
Vec_IntForEachEntry
(
vLevel
,
iObj
,
k
)
{
{
int
fFadd
=
Abc_LitIsCompl
(
iObj
);
int
fFadd
=
Abc_LitIsCompl
(
iObj
);
...
@@ -573,6 +580,7 @@ Acec_Box_t * Acec_DeriveBox( Gia_Man_t * p, int fVerbose )
...
@@ -573,6 +580,7 @@ Acec_Box_t * Acec_DeriveBox( Gia_Man_t * p, int fVerbose )
Vec_WecSizeSize
(
pBox
->
vLeafLits
),
Vec_WecSizeSize
(
pBox
->
vRootLits
)
);
Vec_WecSizeSize
(
pBox
->
vLeafLits
),
Vec_WecSizeSize
(
pBox
->
vRootLits
)
);
if
(
pBox
&&
fVerbose
)
if
(
pBox
&&
fVerbose
)
Acec_PrintBox
(
pBox
,
vAdds
);
Acec_PrintBox
(
pBox
,
vAdds
);
// Acec_MultDetectInputs( p, pBox->vLeafLits, pBox->vRootLits );
Vec_WecFreeP
(
&
vTrees
);
Vec_WecFreeP
(
&
vTrees
);
Vec_IntFree
(
vAdds
);
Vec_IntFree
(
vAdds
);
return
pBox
;
return
pBox
;
...
...
src/proof/acec/module.make
View file @
d52dafa6
...
@@ -8,6 +8,7 @@ SRC += src/proof/acec/acecCl.c \
...
@@ -8,6 +8,7 @@ SRC += src/proof/acec/acecCl.c \
src/proof/acec/acecPool.c
\
src/proof/acec/acecPool.c
\
src/proof/acec/acecCover.c
\
src/proof/acec/acecCover.c
\
src/proof/acec/acecFadds.c
\
src/proof/acec/acecFadds.c
\
src/proof/acec/acecMult.c
\
src/proof/acec/acecNorm.c
\
src/proof/acec/acecNorm.c
\
src/proof/acec/acecOrder.c
\
src/proof/acec/acecOrder.c
\
src/proof/acec/acecPolyn.c
\
src/proof/acec/acecPolyn.c
\
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment