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|
//------------------------------------------------------------------------------
// GB_flip_binop: flip a binary operator for an eWise operation or GrB_mxm
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2019, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB.h"
#include "GB_binop.h"
GrB_BinaryOp GB_flip_binop // flip a binary operator
(
// input:
GrB_BinaryOp op, // binary operator to flip
bool for_ewise, // if true: flip for eWise, else for semiring
// input/output:
bool *flipxy // true on input, set to false if op is flipped
)
{
//--------------------------------------------------------------------------
// quick return if binary op is not flipped
//--------------------------------------------------------------------------
if (!(*flipxy))
{
// op is not flipped
return (op) ;
}
(*flipxy) = false ; // set below to true if the op is not flipped
//--------------------------------------------------------------------------
// handle positional binary operators for ewise operations
//--------------------------------------------------------------------------
if (for_ewise && GB_IS_BINARYOP_CODE_POSITIONAL (op->opcode))
{
// built-in positional ops (firsti, firstj, secondi, secondj) are
// not flipped for eWise operations
return (op) ;
}
//--------------------------------------------------------------------------
// handle the general case: both ewise and mxm
//--------------------------------------------------------------------------
GB_Type_code xcode = op->xtype->code ;
bool int32 = (xcode == GB_INT32_code) ;
switch (op->opcode)
{
//----------------------------------------------------------------------
// swap FIRST and SECOND
//----------------------------------------------------------------------
case GB_FIRST_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GrB_SECOND_BOOL) ;
case GB_INT8_code : return (GrB_SECOND_INT8) ;
case GB_INT16_code : return (GrB_SECOND_INT16) ;
case GB_INT32_code : return (GrB_SECOND_INT32) ;
case GB_INT64_code : return (GrB_SECOND_INT64) ;
case GB_UINT8_code : return (GrB_SECOND_UINT8) ;
case GB_UINT16_code : return (GrB_SECOND_UINT16) ;
case GB_UINT32_code : return (GrB_SECOND_UINT32) ;
case GB_UINT64_code : return (GrB_SECOND_UINT64) ;
case GB_FP32_code : return (GrB_SECOND_FP32) ;
case GB_FP64_code : return (GrB_SECOND_FP64) ;
case GB_FC32_code : return (GxB_SECOND_FC32) ;
case GB_FC64_code : return (GxB_SECOND_FC64) ;
default: ;
}
break ;
case GB_SECOND_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GrB_FIRST_BOOL) ;
case GB_INT8_code : return (GrB_FIRST_INT8) ;
case GB_INT16_code : return (GrB_FIRST_INT16) ;
case GB_INT32_code : return (GrB_FIRST_INT32) ;
case GB_INT64_code : return (GrB_FIRST_INT64) ;
case GB_UINT8_code : return (GrB_FIRST_UINT8) ;
case GB_UINT16_code : return (GrB_FIRST_UINT16) ;
case GB_UINT32_code : return (GrB_FIRST_UINT32) ;
case GB_UINT64_code : return (GrB_FIRST_UINT64) ;
case GB_FP32_code : return (GrB_FIRST_FP32) ;
case GB_FP64_code : return (GrB_FIRST_FP64) ;
case GB_FC32_code : return (GxB_FIRST_FC32) ;
case GB_FC64_code : return (GxB_FIRST_FC64) ;
default: ;
}
break ;
//----------------------------------------------------------------------
// swap LT and GT
//----------------------------------------------------------------------
case GB_GT_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GrB_LT_BOOL) ;
case GB_INT8_code : return (GrB_LT_INT8) ;
case GB_INT16_code : return (GrB_LT_INT16) ;
case GB_INT32_code : return (GrB_LT_INT32) ;
case GB_INT64_code : return (GrB_LT_INT64) ;
case GB_UINT8_code : return (GrB_LT_UINT8) ;
case GB_UINT16_code : return (GrB_LT_UINT16) ;
case GB_UINT32_code : return (GrB_LT_UINT32) ;
case GB_UINT64_code : return (GrB_LT_UINT64) ;
case GB_FP32_code : return (GrB_LT_FP32) ;
case GB_FP64_code : return (GrB_LT_FP64) ;
default: ;
}
break ;
case GB_LT_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GrB_GT_BOOL) ;
case GB_INT8_code : return (GrB_GT_INT8) ;
case GB_INT16_code : return (GrB_GT_INT16) ;
case GB_INT32_code : return (GrB_GT_INT32) ;
case GB_INT64_code : return (GrB_GT_INT64) ;
case GB_UINT8_code : return (GrB_GT_UINT8) ;
case GB_UINT16_code : return (GrB_GT_UINT16) ;
case GB_UINT32_code : return (GrB_GT_UINT32) ;
case GB_UINT64_code : return (GrB_GT_UINT64) ;
case GB_FP32_code : return (GrB_GT_FP32) ;
case GB_FP64_code : return (GrB_GT_FP64) ;
default: ;
}
break ;
//----------------------------------------------------------------------
// swap LE and GE
//----------------------------------------------------------------------
case GB_GE_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GrB_LE_BOOL) ;
case GB_INT8_code : return (GrB_LE_INT8) ;
case GB_INT16_code : return (GrB_LE_INT16) ;
case GB_INT32_code : return (GrB_LE_INT32) ;
case GB_INT64_code : return (GrB_LE_INT64) ;
case GB_UINT8_code : return (GrB_LE_UINT8) ;
case GB_UINT16_code : return (GrB_LE_UINT16) ;
case GB_UINT32_code : return (GrB_LE_UINT32) ;
case GB_UINT64_code : return (GrB_LE_UINT64) ;
case GB_FP32_code : return (GrB_LE_FP32) ;
case GB_FP64_code : return (GrB_LE_FP64) ;
default: ;
}
break ;
case GB_LE_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GrB_GE_BOOL) ;
case GB_INT8_code : return (GrB_GE_INT8) ;
case GB_INT16_code : return (GrB_GE_INT16) ;
case GB_INT32_code : return (GrB_GE_INT32) ;
case GB_INT64_code : return (GrB_GE_INT64) ;
case GB_UINT8_code : return (GrB_GE_UINT8) ;
case GB_UINT16_code : return (GrB_GE_UINT16) ;
case GB_UINT32_code : return (GrB_GE_UINT32) ;
case GB_UINT64_code : return (GrB_GE_UINT64) ;
case GB_FP32_code : return (GrB_GE_FP32) ;
case GB_FP64_code : return (GrB_GE_FP64) ;
default: ;
}
break ;
//----------------------------------------------------------------------
// swap ISLT and ISGT
//----------------------------------------------------------------------
case GB_ISGT_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GxB_ISLT_BOOL) ;
case GB_INT8_code : return (GxB_ISLT_INT8) ;
case GB_INT16_code : return (GxB_ISLT_INT16) ;
case GB_INT32_code : return (GxB_ISLT_INT32) ;
case GB_INT64_code : return (GxB_ISLT_INT64) ;
case GB_UINT8_code : return (GxB_ISLT_UINT8) ;
case GB_UINT16_code : return (GxB_ISLT_UINT16) ;
case GB_UINT32_code : return (GxB_ISLT_UINT32) ;
case GB_UINT64_code : return (GxB_ISLT_UINT64) ;
case GB_FP32_code : return (GxB_ISLT_FP32) ;
case GB_FP64_code : return (GxB_ISLT_FP64) ;
default: ;
}
break ;
case GB_ISLT_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GxB_ISGT_BOOL) ;
case GB_INT8_code : return (GxB_ISGT_INT8) ;
case GB_INT16_code : return (GxB_ISGT_INT16) ;
case GB_INT32_code : return (GxB_ISGT_INT32) ;
case GB_INT64_code : return (GxB_ISGT_INT64) ;
case GB_UINT8_code : return (GxB_ISGT_UINT8) ;
case GB_UINT16_code : return (GxB_ISGT_UINT16) ;
case GB_UINT32_code : return (GxB_ISGT_UINT32) ;
case GB_UINT64_code : return (GxB_ISGT_UINT64) ;
case GB_FP32_code : return (GxB_ISGT_FP32) ;
case GB_FP64_code : return (GxB_ISGT_FP64) ;
default: ;
}
break ;
//----------------------------------------------------------------------
// swap ISLE and ISGE
//----------------------------------------------------------------------
case GB_ISGE_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GxB_ISLE_BOOL) ;
case GB_INT8_code : return (GxB_ISLE_INT8) ;
case GB_INT16_code : return (GxB_ISLE_INT16) ;
case GB_INT32_code : return (GxB_ISLE_INT32) ;
case GB_INT64_code : return (GxB_ISLE_INT64) ;
case GB_UINT8_code : return (GxB_ISLE_UINT8) ;
case GB_UINT16_code : return (GxB_ISLE_UINT16) ;
case GB_UINT32_code : return (GxB_ISLE_UINT32) ;
case GB_UINT64_code : return (GxB_ISLE_UINT64) ;
case GB_FP32_code : return (GxB_ISLE_FP32) ;
case GB_FP64_code : return (GxB_ISLE_FP64) ;
default: ;
}
break ;
case GB_ISLE_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GxB_ISGE_BOOL) ;
case GB_INT8_code : return (GxB_ISGE_INT8) ;
case GB_INT16_code : return (GxB_ISGE_INT16) ;
case GB_INT32_code : return (GxB_ISGE_INT32) ;
case GB_INT64_code : return (GxB_ISGE_INT64) ;
case GB_UINT8_code : return (GxB_ISGE_UINT8) ;
case GB_UINT16_code : return (GxB_ISGE_UINT16) ;
case GB_UINT32_code : return (GxB_ISGE_UINT32) ;
case GB_UINT64_code : return (GxB_ISGE_UINT64) ;
case GB_FP32_code : return (GxB_ISGE_FP32) ;
case GB_FP64_code : return (GxB_ISGE_FP64) ;
default: ;
}
break ;
//----------------------------------------------------------------------
// swap DIV and RDIV
//----------------------------------------------------------------------
case GB_DIV_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GxB_RDIV_BOOL) ;
case GB_INT8_code : return (GxB_RDIV_INT8) ;
case GB_INT16_code : return (GxB_RDIV_INT16) ;
case GB_INT32_code : return (GxB_RDIV_INT32) ;
case GB_INT64_code : return (GxB_RDIV_INT64) ;
case GB_UINT8_code : return (GxB_RDIV_UINT8) ;
case GB_UINT16_code : return (GxB_RDIV_UINT16) ;
case GB_UINT32_code : return (GxB_RDIV_UINT32) ;
case GB_UINT64_code : return (GxB_RDIV_UINT64) ;
case GB_FP32_code : return (GxB_RDIV_FP32) ;
case GB_FP64_code : return (GxB_RDIV_FP64) ;
case GB_FC32_code : return (GxB_RDIV_FC32) ;
case GB_FC64_code : return (GxB_RDIV_FC64) ;
default: ;
}
break ;
case GB_RDIV_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GrB_DIV_BOOL) ;
case GB_INT8_code : return (GrB_DIV_INT8) ;
case GB_INT16_code : return (GrB_DIV_INT16) ;
case GB_INT32_code : return (GrB_DIV_INT32) ;
case GB_INT64_code : return (GrB_DIV_INT64) ;
case GB_UINT8_code : return (GrB_DIV_UINT8) ;
case GB_UINT16_code : return (GrB_DIV_UINT16) ;
case GB_UINT32_code : return (GrB_DIV_UINT32) ;
case GB_UINT64_code : return (GrB_DIV_UINT64) ;
case GB_FP32_code : return (GrB_DIV_FP32) ;
case GB_FP64_code : return (GrB_DIV_FP64) ;
case GB_FC32_code : return (GxB_DIV_FC32) ;
case GB_FC64_code : return (GxB_DIV_FC64) ;
default: ;
}
break ;
//----------------------------------------------------------------------
// swap MINUS and RMINUS
//----------------------------------------------------------------------
case GB_MINUS_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GxB_RMINUS_BOOL) ;
case GB_INT8_code : return (GxB_RMINUS_INT8) ;
case GB_INT16_code : return (GxB_RMINUS_INT16) ;
case GB_INT32_code : return (GxB_RMINUS_INT32) ;
case GB_INT64_code : return (GxB_RMINUS_INT64) ;
case GB_UINT8_code : return (GxB_RMINUS_UINT8) ;
case GB_UINT16_code : return (GxB_RMINUS_UINT16) ;
case GB_UINT32_code : return (GxB_RMINUS_UINT32) ;
case GB_UINT64_code : return (GxB_RMINUS_UINT64) ;
case GB_FP32_code : return (GxB_RMINUS_FP32) ;
case GB_FP64_code : return (GxB_RMINUS_FP64) ;
case GB_FC32_code : return (GxB_RMINUS_FC32) ;
case GB_FC64_code : return (GxB_RMINUS_FC64) ;
default: ;
}
break ;
case GB_RMINUS_binop_code :
switch (xcode)
{
case GB_BOOL_code : return (GrB_MINUS_BOOL) ;
case GB_INT8_code : return (GrB_MINUS_INT8) ;
case GB_INT16_code : return (GrB_MINUS_INT16) ;
case GB_INT32_code : return (GrB_MINUS_INT32) ;
case GB_INT64_code : return (GrB_MINUS_INT64) ;
case GB_UINT8_code : return (GrB_MINUS_UINT8) ;
case GB_UINT16_code : return (GrB_MINUS_UINT16) ;
case GB_UINT32_code : return (GrB_MINUS_UINT32) ;
case GB_UINT64_code : return (GrB_MINUS_UINT64) ;
case GB_FP32_code : return (GrB_MINUS_FP32) ;
case GB_FP64_code : return (GrB_MINUS_FP64) ;
case GB_FC32_code : return (GxB_MINUS_FC32) ;
case GB_FC64_code : return (GxB_MINUS_FC64) ;
default: ;
}
break ;
//----------------------------------------------------------------------
// positional operators: flip for mxm methods, not for ewise (see above)
//----------------------------------------------------------------------
case GB_FIRSTI_binop_code :
return (int32 ? GxB_SECONDJ_INT32 : GxB_SECONDJ_INT64) ;
case GB_FIRSTJ_binop_code :
return (int32 ? GxB_SECONDI_INT32 : GxB_SECONDI_INT64) ;
case GB_FIRSTI1_binop_code :
return (int32 ? GxB_SECONDJ1_INT32 : GxB_SECONDJ1_INT64) ;
case GB_FIRSTJ1_binop_code :
return (int32 ? GxB_SECONDI1_INT32 : GxB_SECONDI1_INT64) ;
case GB_SECONDI_binop_code :
return (int32 ? GxB_FIRSTJ_INT32 : GxB_FIRSTJ_INT64) ;
case GB_SECONDJ_binop_code :
return (int32 ? GxB_FIRSTI_INT32 : GxB_FIRSTI_INT64) ;
case GB_SECONDI1_binop_code :
return (int32 ? GxB_FIRSTJ1_INT32 : GxB_FIRSTJ1_INT64) ;
case GB_SECONDJ1_binop_code :
return (int32 ? GxB_FIRSTI1_INT32 : GxB_FIRSTI1_INT64) ;
//----------------------------------------------------------------------
// these operators are commutative; they are their own flipped ops:
//----------------------------------------------------------------------
case GB_ANY_binop_code :
case GB_PAIR_binop_code :
case GB_MIN_binop_code :
case GB_MAX_binop_code :
case GB_PLUS_binop_code :
case GB_TIMES_binop_code :
case GB_ISEQ_binop_code :
case GB_ISNE_binop_code :
case GB_LOR_binop_code :
case GB_LAND_binop_code :
case GB_LXOR_binop_code :
case GB_BOR_binop_code :
case GB_BAND_binop_code :
case GB_BXOR_binop_code :
case GB_BXNOR_binop_code :
case GB_EQ_binop_code :
case GB_NE_binop_code :
case GB_HYPOT_binop_code :
return (op) ;
//----------------------------------------------------------------------
// these operators are not commutative and do not have flipped ops:
//----------------------------------------------------------------------
// These are the only cases of built-in binary operators that are not
// flipped.
case GB_POW_binop_code :
case GB_BGET_binop_code :
case GB_BSET_binop_code :
case GB_BCLR_binop_code :
case GB_BSHIFT_binop_code :
case GB_ATAN2_binop_code :
case GB_FMOD_binop_code :
case GB_REMAINDER_binop_code :
case GB_COPYSIGN_binop_code :
case GB_LDEXP_binop_code :
case GB_CMPLX_binop_code :
case GB_USER_binop_code :
default: ;
}
//--------------------------------------------------------------------------
// operator cannot be flipped
//--------------------------------------------------------------------------
(*flipxy) = true ;
return (op) ;
}
|
