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lruzdd
Commit 70817eac authored by Valentin Touzeau's avatar Valentin Touzeau
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Merge remote-tracking branch 'origin/beta'

parents b9d3201d 97aee0b2
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Showing with 1052 additions and 409 deletions
CMakeLists.txt
View file @ 70817eac
......@@ -20,12 +20,12 @@ set(SOURCES "src/lruzdd.cpp"
)
add_subdirectory(cudd)
add_subdirectory(extra)
# script
project(${PLUGIN})
add_subdirectory(cudd)
add_subdirectory(extra)
# look for OTAWA
if(NOT OTAWA_CONFIG)
find_program(OTAWA_CONFIG otawa-config DOC "path to otawa-config")
......@@ -56,14 +56,15 @@ add_library(${PLUGIN} SHARED ${SOURCES})
set_property(TARGET ${PLUGIN} PROPERTY PREFIX "")
set_property(TARGET ${PLUGIN} PROPERTY COMPILE_FLAGS "${OTAWA_CFLAGS} --std=c++11 -g -Wall -Wextra -pedantic")
add_dependencies(${PLUGIN} libcudd)
add_dependencies(${PLUGIN} libextra)
add_dependencies(${PLUGIN} cudd)
add_dependencies(${PLUGIN} extra)
target_include_directories(${PLUGIN} PUBLIC "${CMAKE_SOURCE_DIR}/include")
target_link_libraries(${PLUGIN} PUBLIC "${OTAWA_LDFLAGS}" cudd_core cudd_epd cudd_st cudd_util extra)
target_link_libraries(${PLUGIN} PUBLIC "${OTAWA_LDFLAGS}" cudd extra)
# installation
set(PLUGIN_PATH "${OTAWA_PREFIX}/lib/otawa/${NAMESPACE}")
install(TARGETS ${PLUGIN} LIBRARY DESTINATION ${PLUGIN_PATH})
install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include/lruzdd" DESTINATION "${OTAWA_PREFIX}/include")
install(FILES ${PLUGIN}.eld DESTINATION ${PLUGIN_PATH})
cudd/CMakeLists.txt
View file @ 70817eac
set(CUDD_LIB_FILE ${CMAKE_CURRENT_BINARY_DIR}/cudd-2.3.1/cudd/libcudd.a)
set(EPD_LIB_FILE ${CMAKE_CURRENT_BINARY_DIR}/cudd-2.3.1/epd/libepd.a)
set(ST_LIB_FILE ${CMAKE_CURRENT_BINARY_DIR}/cudd-2.3.1/st/libst.a)
set(UTIL_LIB_FILE ${CMAKE_CURRENT_BINARY_DIR}/cudd-2.3.1/util/libutil.a)
set(CUDD_LIB_FILE ${CMAKE_CURRENT_BINARY_DIR}/cudd/lib/libcudd.a)
add_custom_command(
OUTPUT ${CUDD_LIB_FILE}
COMMAND ${CMAKE_COMMAND} -E tar xzf ${CMAKE_CURRENT_SOURCE_DIR}/cudd-2.3.1.tar.gz
COMMAND patch -p0 -i ${CMAKE_CURRENT_SOURCE_DIR}/cudd-2.3.1.patch
COMMAND cd cudd-2.3.1 && rm -r include
COMMAND cd cudd-2.3.1 && ./setup.sh
COMMAND make -C cudd-2.3.1
COMMAND rm -rf cudd
COMMAND git clone https://github.com/kozross/cudd
COMMAND cd cudd && autoreconf -i
COMMAND cd cudd && ./configure CC=${CMAKE_C_COMPILER} CFLAGS=-fPIC --prefix=${CMAKE_CURRENT_BINARY_DIR}/cudd
COMMAND make -C cudd
COMMAND make -C cudd install
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/
)
......@@ -18,45 +16,24 @@ add_custom_target(
DEPENDS ${CUDD_LIB_FILE}
)
#add_custom_target(
# compile_cudd
# COMMAND ${CMAKE_COMMAND} -E tar xzf ${CMAKE_CURRENT_SOURCE_DIR}/cudd-2.3.1.tar.gz
# COMMAND patch -p0 -i ${CMAKE_CURRENT_SOURCE_DIR}/cudd-2.3.1.patch
# COMMAND cd cudd-2.3.1 && rm -r include
# COMMAND cd cudd-2.3.1 && ./setup.sh
# COMMAND make -C cudd-2.3.1
# WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/
#)
set(HEADERS_FOLDER ${CMAKE_CURRENT_BINARY_DIR}/cudd-2.3.1/include)
file(MAKE_DIRECTORY ${HEADERS_FOLDER})
add_library(cudd_core STATIC IMPORTED GLOBAL)
add_library(cudd_epd STATIC IMPORTED GLOBAL)
add_library(cudd_st STATIC IMPORTED GLOBAL)
add_library(cudd_util STATIC IMPORTED GLOBAL)
set_target_properties(cudd_core
PROPERTIES
IMPORTED_LOCATION ${CUDD_LIB_FILE}
INTERFACE_INCLUDE_DIRECTORIES ${HEADERS_FOLDER}
#set(HEADERS_FOLDER ${CMAKE_CURRENT_BINARY_DIR}/cudd-2.3.1/include)
SET(CUDD_INCLUDE_DIR
"${CMAKE_CURRENT_BINARY_DIR}/cudd/cudd/"
"${CMAKE_CURRENT_BINARY_DIR}/cudd/st/"
"${CMAKE_CURRENT_BINARY_DIR}/cudd/epd/"
"${CMAKE_CURRENT_BINARY_DIR}/cudd/util/"
"${CMAKE_CURRENT_BINARY_DIR}/cudd/dddmp/"
"${CMAKE_CURRENT_BINARY_DIR}/cudd/mtr/"
"${CMAKE_CURRENT_BINARY_DIR}/cudd/nanotrav/"
"${CMAKE_CURRENT_BINARY_DIR}/cudd/"
)
set_target_properties(cudd_epd
PROPERTIES
IMPORTED_LOCATION ${EPD_LIB_FILE}
INTERFACE_INCLUDE_DIRECTORIES ${HEADERS_FOLDER}
)
file(MAKE_DIRECTORY ${CUDD_INCLUDE_DIR})
set_target_properties(cudd_st
PROPERTIES
IMPORTED_LOCATION ${ST_LIB_FILE}
INTERFACE_INCLUDE_DIRECTORIES ${HEADERS_FOLDER}
)
add_library(cudd STATIC IMPORTED GLOBAL)
set_target_properties(cudd_util
PROPERTIES
IMPORTED_LOCATION ${UTIL_LIB_FILE}
INTERFACE_INCLUDE_DIRECTORIES ${HEADERS_FOLDER}
set_target_properties(cudd PROPERTIES
IMPORTED_LOCATION ${CUDD_LIB_FILE}
INTERFACE_INCLUDE_DIRECTORIES "${CUDD_INCLUDE_DIR}"
)
cudd/cudd-2.3.1.patch deleted 100644 → 0
View file @ b9d3201d
diff -r -c cudd-2.3.1/Makefile cudd-2.3.1/Makefile
*** cudd-2.3.1/Makefile 2001-05-18 02:54:26.000000000 +0200
--- cudd-2.3.1/Makefile 2018-05-24 15:35:42.034516245 +0200
***************
*** 42,48 ****
#ICFLAGS =
# These two are typical settings for optimized code with gcc.
#ICFLAGS = -g -O6 -Wall
! ICFLAGS = -g -O6
# Use XCFLAGS to specify machine-dependent compilation flags.
# For some platforms no special flags are needed.
--- 42,49 ----
#ICFLAGS =
# These two are typical settings for optimized code with gcc.
#ICFLAGS = -g -O6 -Wall
! #ICFLAGS = -g -O6
! ICFLAGS = -g -O6 -fPIC
# Use XCFLAGS to specify machine-dependent compilation flags.
# For some platforms no special flags are needed.
***************
*** 52,58 ****
# Linux
#
# Gcc 2.8.1 or higher on i686.
! XCFLAGS = -mcpu=pentiumpro -malign-double -DHAVE_IEEE_754 -DBSD
#
#==========================
# Solaris
--- 53,60 ----
# Linux
#
# Gcc 2.8.1 or higher on i686.
! #XCFLAGS = -mcpu=pentiumpro -malign-double -DHAVE_IEEE_754 -DBSD
! XCFLAGS = -malign-double -DHAVE_IEEE_754 -DBSD
#
#==========================
# Solaris
diff -r -c cudd-2.3.1/util/pipefork.c cudd-2.3.1/util/pipefork.c
*** cudd-2.3.1/util/pipefork.c 2001-03-19 11:59:06.000000000 +0100
--- cudd-2.3.1/util/pipefork.c 2018-05-24 15:38:43.370514254 +0200
***************
*** 40,50 ****
int forkpid, waitPid;
int topipe[2], frompipe[2];
char buffer[1024];
- #if (defined __hpux) || (defined __osf__) || (defined _IBMR2) || (defined __SVR4) || (defined __CYGWIN32__)
int status;
- #else
- union wait status;
- #endif
/* create the PIPES...
* fildes[0] for reading from command
--- 40,46 ----
diff -r -c cudd-2.3.1/util/util.h cudd-2.3.1/util/util.h
*** cudd-2.3.1/util/util.h 2001-02-14 19:08:51.000000000 +0100
--- cudd-2.3.1/util/util.h 2018-05-24 15:35:42.018516245 +0200
***************
*** 138,144 ****
/* most machines don't give us a header file for these */
#if (defined(__STDC__) || defined(__cplusplus) || defined(ultrix)) && !defined(MNEMOSYNE) || defined(__SVR4)
# include <stdlib.h>
! EXTERN void free ARGS((void *));
#else
# ifndef _IBMR2
extern VOID_OR_INT abort(), exit();
--- 138,144 ----
/* most machines don't give us a header file for these */
#if (defined(__STDC__) || defined(__cplusplus) || defined(ultrix)) && !defined(MNEMOSYNE) || defined(__SVR4)
# include <stdlib.h>
! /* EXTERN void free ARGS((void *)); */
#else
# ifndef _IBMR2
extern VOID_OR_INT abort(), exit();
extra/CMakeLists.txt
View file @ 70817eac
set(EXTRA_LIB_FILE ${CMAKE_CURRENT_BINARY_DIR}/extra20/libextra.a)
add_custom_command(
OUTPUT ${EXTRA_LIB_FILE}
COMMAND ${CMAKE_COMMAND} -E tar xzf ${CMAKE_CURRENT_SOURCE_DIR}/extra20a.tar.gz
COMMAND patch -p0 -i ${CMAKE_CURRENT_SOURCE_DIR}/extra20.patch
COMMAND make -C extra20
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/
add_library(extra STATIC
src/maxDotProduct.c
src/maxUnion.c
src/minDotProduct.c
src/minUnion.c
src/notSubSet.c
src/notSupSet.c
src/emptyBelongs.c
)
add_custom_target(
libextra
DEPENDS ${EXTRA_LIB_FILE}
set_target_properties(extra
PROPERTIES
PUBLIC_HEADER extra.h
POSITION_INDEPENDENT_CODE ON
)
target_link_libraries(extra cudd)
add_dependencies(libextra libcudd)
set(HEADERS_FOLDER ${CMAKE_CURRENT_BINARY_DIR}/extra20/)
file(MAKE_DIRECTORY ${HEADERS_FOLDER})
set(EXTRA_LIB_FILE ${CMAKE_CURRENT_BINARY_DIR}/extra20/libextra.a)
target_include_directories(extra PUBLIC include)
add_library(extra STATIC IMPORTED GLOBAL)
add_dependencies(extra libcudd)
set_target_properties(extra
PROPERTIES
IMPORTED_LOCATION ${EXTRA_LIB_FILE}
INTERFACE_INCLUDE_DIRECTORIES ${HEADERS_FOLDER}
)
extra/README 0 → 100644
View file @ 70817eac
Most of the code in this directory was taken from the extra library of Alan Mishchenko.
extra/extra20.patch deleted 100644 → 0
View file @ b9d3201d
diff -r -c extra20/Makefile extra20/Makefile
*** extra20/Makefile 2003-10-11 12:25:38.000000000 +0200
--- extra20/Makefile 2018-05-04 16:25:52.535788756 +0200
***************
*** 4,11 ****
.SILENT:
# modify these macros to point to your include and lib directory
! INCDIR = /u/alanmi/local/include/
! LIBDIR = /u/alanmi/local/lib/
# modify this line to compile with compilers other than g++
CC = gcc
--- 4,11 ----
.SILENT:
# modify these macros to point to your include and lib directory
! INCDIR = ../../cudd/cudd-2.3.1/include/
! LIBDIR = /tmp/
# modify this line to compile with compilers other than g++
CC = gcc
***************
*** 25,31 ****
#CFLAGS = -c -O -D_UNIX -D_HP_
# these are compiler flags for SunOS
! CFLAGS = -c -O -D_UNIX
#LFLAGS = -pg -Wall
LFLAGS =
--- 25,32 ----
#CFLAGS = -c -O -D_UNIX -D_HP_
# these are compiler flags for SunOS
! #CFLAGS = -c -O -D_UNIX
! CFLAGS = -c -O -D_UNIX -fPIC
#LFLAGS = -pg -Wall
LFLAGS =
extra/include/extra.h 0 → 100644
View file @ 70817eac
#ifndef EXTRA_H
#define EXTRA_H
#include <stdio.h>
#include <cudd.h>
#include <cuddInt.h>
extern int Extra_zddEmptyBelongs( DdManager *dd, DdNode* zS );
extern DdNode * Extra_zddMaxUnion( DdManager *dd, DdNode * S, DdNode * T );
extern DdNode * extraZddMaxUnion( DdManager *dd, DdNode * S, DdNode * T );
extern DdNode * Extra_zddMinUnion( DdManager *dd, DdNode * S, DdNode * T );
extern DdNode * extraZddMinUnion( DdManager *dd, DdNode * S, DdNode * T );
extern DdNode * Extra_zddMaxDotProduct( DdManager *dd, DdNode * S, DdNode * T );
extern DdNode * extraZddMaxDotProduct( DdManager *dd, DdNode * S, DdNode * T );
extern DdNode * Extra_zddMinDotProduct( DdManager *dd, DdNode * S, DdNode * T );
extern DdNode * extraZddMinDotProduct( DdManager *dd, DdNode * S, DdNode * T );
extern DdNode * Extra_zddNotSubSet( DdManager *dd, DdNode * X, DdNode * Y );
extern DdNode * extraZddNotSubSet( DdManager *dd, DdNode * X, DdNode * Y );
extern DdNode * Extra_zddNotSupSet( DdManager *dd, DdNode * X, DdNode * Y );
extern DdNode * extraZddNotSupSet( DdManager *dd, DdNode * X, DdNode * Y );
#endif // EXTRA_H
extra/src/emptyBelongs.c 0 → 100644
View file @ 70817eac
#include <extra.h>
int
Extra_zddEmptyBelongs(
DdManager *dd,
DdNode* zS )
{
while ( zS->index != CUDD_MAXINDEX )
zS = cuddE( zS );
return (int)( zS == DD_ONE(dd) );
} /* end of Extra_zddEmptyBelongs */
extra/src/maxDotProduct.c 0 → 100644
View file @ 70817eac
#include <extra.h>
/**Function********************************************************************
Synopsis [Computes the maximal of the DotProduct of the union of two sets represented by ZDDs.]
Description [This procedure assumes that the arguments are already
maximal.]
SideEffects []
SeeAlso [Extra_zddDotProduct Extra_zddMaximal Extra_zddMinCrossProduct]
******************************************************************************/
DdNode *
Extra_zddMaxDotProduct(
DdManager * dd,
DdNode * S,
DdNode * T)
{
DdNode *res;
do {
dd->reordered = 0;
res = extraZddMaxDotProduct(dd, S, T);
} while (dd->reordered == 1);
return(res);
} /* end of Extra_zddMaxDotProduct */
/**Function********************************************************************
Synopsis [Performs the recursive step of Extra_zddMaxDotProduct.]
Description []
SideEffects [None]
SeeAlso []
******************************************************************************/
DdNode *
extraZddMaxDotProduct(
DdManager * dd,
DdNode * S,
DdNode * T)
{
DdNode *zRes;
int TopS, TopT;
statLine(dd);
/* consider terminal cases */
if ( S == DD_ZERO(dd) || T == DD_ZERO(dd) )
return DD_ZERO(dd);
if ( S == DD_ONE(dd) )
return T;
if ( T == DD_ONE(dd) )
return S;
/* the operation is commutative - normalize the problem */
TopS = dd->permZ[S->index];
TopT = dd->permZ[T->index];
if ( TopS > TopT || (TopS == TopT && (unsigned)S > (unsigned)T) )
return extraZddMaxDotProduct(dd, T, S);
/* check cache */
zRes = cuddCacheLookup2Zdd(dd, extraZddMaxDotProduct, S, T);
if (zRes)
return zRes;
else
{
DdNode *zSet0, *zSet1, *zRes0, *zRes1, *zTemp;
if ( TopS == TopT )
{
/* compute the union of two cofactors of T (T0+T1) */
zTemp = extraZddMaxUnion(dd, cuddE(T), cuddT(T) );
if ( zTemp == NULL )
return NULL;
cuddRef( zTemp );
/* compute MaxDotProduct with the top element for subsets (S1, T0+T1) */
zSet0 = extraZddMaxDotProduct(dd, cuddT(S), zTemp );
if ( zSet0 == NULL )
{
Cudd_RecursiveDerefZdd(dd, zTemp);
return NULL;
}
cuddRef( zSet0 );
Cudd_RecursiveDerefZdd(dd, zTemp);
/* compute MaxDotProduct with the top element for subsets (S0, T1) */
zSet1 = extraZddMaxDotProduct(dd, cuddE(S), cuddT(T) );
if ( zSet1 == NULL )
{
Cudd_RecursiveDerefZdd(dd, zSet0);
return NULL;
}
cuddRef( zSet1 );
/* compute the union of these two partial results (zSet0 + zSet1) */
zRes1 = extraZddMaxUnion(dd, zSet0, zSet1 );
if ( zRes1 == NULL )
{
Cudd_RecursiveDerefZdd(dd, zSet0);
Cudd_RecursiveDerefZdd(dd, zSet1);
return NULL;
}
cuddRef( zRes1 );
Cudd_RecursiveDerefZdd(dd, zSet0);
Cudd_RecursiveDerefZdd(dd, zSet1);
/* compute MaxDotProduct for subsets without the top-most element */
zRes0 = extraZddMaxDotProduct(dd, cuddE(S), cuddE(T) );
if ( zRes0 == NULL )
{
Cudd_RecursiveDerefZdd(dd, zRes1);
return NULL;
}
cuddRef( zRes0 );
}
else /* if ( TopS < TopT ) */
{
/* compute MaxDotProduct with the top element for subsets (S1, T) */
zRes1 = extraZddMaxDotProduct(dd, cuddT(S), T );
if ( zRes1 == NULL )
return NULL;
cuddRef( zRes1 );
/* compute MaxDotProduct for subsets without the top-most element */
zRes0 = extraZddMaxDotProduct(dd, cuddE(S), T );
if ( zRes0 == NULL )
{
Cudd_RecursiveDerefZdd(dd, zRes1);
return NULL;
}
cuddRef( zRes0 );
}
/* remove subsets without this element covered by subsets with this element */
zRes0 = extraZddNotSubSet(dd, zTemp = zRes0, zRes1);
if ( zRes0 == NULL )
{
Cudd_RecursiveDerefZdd(dd, zTemp);
Cudd_RecursiveDerefZdd(dd, zRes1);
return NULL;
}
cuddRef( zRes0 );
Cudd_RecursiveDerefZdd(dd, zTemp);
/* create the new node */
zRes = cuddZddGetNode( dd, S->index, zRes1, zRes0 );
if ( zRes == NULL )
{
Cudd_RecursiveDerefZdd( dd, zRes0 );
Cudd_RecursiveDerefZdd( dd, zRes1 );
return NULL;
}
cuddDeref( zRes0 );
cuddDeref( zRes1 );
/* insert the result into cache */
cuddCacheInsert2(dd, extraZddMaxDotProduct, S, T, zRes);
return zRes;
}
} /* end of extraZddMaxDotProduct */
extra/src/maxUnion.c 0 → 100644
View file @ 70817eac
#include <extra.h>
/**Function********************************************************************
Synopsis [Computes the maximal of the union of two sets represented by ZDDs.]
Description [This procedure assumes that the arguments are already
maximal. This is why Maximal(X) is not computed in the bottom cases
MaxUnion(X, {}) = MaxUnion({}, X) = Maximal(X), and X is returned.]
SideEffects []
SeeAlso [Extra_zddMaximal Extra_zddMimimal Extra_zddMinUnion]
******************************************************************************/
DdNode *
Extra_zddMaxUnion(
DdManager * dd,
DdNode * S,
DdNode * T)
{
DdNode *res;
do {
dd->reordered = 0;
res = extraZddMaxUnion(dd, S, T);
} while (dd->reordered == 1);
return(res);
} /* end of Extra_zddMaxUnion */
/**Function********************************************************************
Synopsis [Performs the recursive step of Extra_zddMaxUnion.]
Description []
SideEffects [None]
SeeAlso []
******************************************************************************/
DdNode *
extraZddMaxUnion(
DdManager * dd,
DdNode * S,
DdNode * T)
{
DdNode *zRes;
int TopS, TopT;
statLine(dd);
/* consider terminal cases */
if ( S == DD_ZERO(dd) )
return T;
if ( T == DD_ZERO(dd) )
return S;
if ( S == T )
return S;
if ( S == DD_ONE(dd) )
return T;
if ( T == DD_ONE(dd) )
return S;
/* the operation is commutative - normalize the problem */
TopS = dd->permZ[S->index];
TopT = dd->permZ[T->index];
if ( TopS > TopT || (TopS == TopT && (unsigned)S > (unsigned)T) )
return extraZddMaxUnion(dd, T, S);
/* check cache */
zRes = cuddCacheLookup2Zdd(dd, extraZddMaxUnion, S, T);
if (zRes)
return zRes;
else
{
DdNode *zSet0, *zSet1, *zRes0, *zRes1;
if ( TopS == TopT )
{
/* compute maximal for subsets without the top-most element */
zSet0 = extraZddMaxUnion(dd, cuddE(S), cuddE(T) );
if ( zSet0 == NULL )
return NULL;
cuddRef( zSet0 );
/* compute maximal for subsets with the top-most element */
zSet1 = extraZddMaxUnion(dd, cuddT(S), cuddT(T) );
if ( zSet1 == NULL )
{
Cudd_RecursiveDerefZdd(dd, zSet0);
return NULL;
}
cuddRef( zSet1 );
}
else /* if ( TopS < TopT ) */
{
/* compute maximal for subsets without the top-most element */
zSet0 = extraZddMaxUnion(dd, cuddE(S), T );
if ( zSet0 == NULL )
return NULL;
cuddRef( zSet0 );
/* subset with this element is just the cofactor of S */
zSet1 = cuddT(S);
cuddRef( zSet1 );
}
/* remove subsets without this element covered by subsets with this element */
zRes0 = extraZddNotSubSet(dd, zSet0, zSet1);
if ( zRes0 == NULL )
{
Cudd_RecursiveDerefZdd(dd, zSet0);
Cudd_RecursiveDerefZdd(dd, zSet1);
return NULL;
}
cuddRef( zRes0 );
Cudd_RecursiveDerefZdd(dd, zSet0);
/* subset with this element remains unchanged */
zRes1 = zSet1;
/* create the new node */
zRes = cuddZddGetNode( dd, S->index, zRes1, zRes0 );
if ( zRes == NULL )
{
Cudd_RecursiveDerefZdd( dd, zRes0 );
Cudd_RecursiveDerefZdd( dd, zRes1 );
return NULL;
}
cuddDeref( zRes0 );
cuddDeref( zRes1 );
/* insert the result into cache */
cuddCacheInsert2(dd, extraZddMaxUnion, S, T, zRes);
return zRes;
}
} /* end of extraZddMaxUnion */
extra/src/minDotProduct.c 0 → 100644
View file @ 70817eac
#include <extra.h>
DdNode *Extra_zddMinDotProduct(
DdManager * dd,
DdNode * S,
DdNode * T)
{
DdNode *res;
do {
dd->reordered = 0;
res = extraZddMinDotProduct(dd, S, T);
} while (dd->reordered == 1);
return(res);
} /* end of zddMinDotProduct */
DdNode *
extraZddMinDotProduct(
DdManager * dd,
DdNode * S,
DdNode * T)
{
DdNode *zRes;
int TopS, TopT;
statLine(dd);
/* consider terminal cases */
if ( S == DD_ZERO(dd) || T == DD_ZERO(dd) )
return DD_ZERO(dd);
if ( S == DD_ONE(dd) )
return T;
if ( T == DD_ONE(dd) )
return S;
/* the operation is commutative - normalize the problem */
TopS = dd->permZ[S->index];
TopT = dd->permZ[T->index];
if ( TopS > TopT || (TopS == TopT && (unsigned long)S > (unsigned long)T) )
return extraZddMinDotProduct(dd, T, S);
/* check cache */
zRes = cuddCacheLookup2Zdd(dd, extraZddMinDotProduct, S, T);
if (zRes)
return zRes;
else
{
DdNode *zSet0, *zSet1, *zRes0, *zRes1, *zTemp;
if ( TopS == TopT )
{
/* compute the union of two cofactors of T (T0+T1) */
zTemp = extraZddMinUnion(dd, cuddE(T), cuddT(T) );
if ( zTemp == NULL )
return NULL;
cuddRef( zTemp );
/* compute MinDotProduct with the top element for subsets (S1, T0+T1) */
zSet0 = extraZddMinDotProduct(dd, cuddT(S), zTemp );
if ( zSet0 == NULL )
{
Cudd_RecursiveDerefZdd(dd, zTemp);
return NULL;
}
cuddRef( zSet0 );
Cudd_RecursiveDerefZdd(dd, zTemp);
/* compute MinDotProduct with the top element for subsets (S0, T1) */
zSet1 = extraZddMinDotProduct(dd, cuddE(S), cuddT(T) );
if ( zSet1 == NULL )
{
Cudd_RecursiveDerefZdd(dd, zSet0);
return NULL;
}
cuddRef( zSet1 );
/* compute the union of these two partial results (zSet0 + zSet1) */
zRes1 = extraZddMinUnion(dd, zSet0, zSet1 );
if ( zRes1 == NULL )
{
Cudd_RecursiveDerefZdd(dd, zSet0);
Cudd_RecursiveDerefZdd(dd, zSet1);
return NULL;
}
cuddRef( zRes1 );
Cudd_RecursiveDerefZdd(dd, zSet0);
Cudd_RecursiveDerefZdd(dd, zSet1);
/* compute MinDotProduct for subsets without the top-most element */
zRes0 = extraZddMinDotProduct(dd, cuddE(S), cuddE(T) );
if ( zRes0 == NULL )
{