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//------------------------------------------------------------------------------
// GB_binop_rename: rename a bound binary operator to its unary op equivalent
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// A binary operator can be applied to a matrix with GrB_apply, but some of
// them can be remapped into equivalent unary operators. Any idxunop can also
// be applied, and some of them can be remapped into binary ops (with bind2nd).
#include "GB.h"
#include "GB_binop.h"
void GB_binop_rename // rename a bound binary op or an idxunop
(
GB_Operator *op, // operator to rename
bool binop_bind1st
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
ASSERT (op != NULL && (*op) != NULL) ;
GB_Opcode opcode = (*op)->opcode ;
GrB_Type xtype = (*op)->xtype ;
GB_Type_code xcode = (xtype == NULL) ? GB_ignore_code : xtype->code ;
//--------------------------------------------------------------------------
// rename a binary op or an idxunop
//--------------------------------------------------------------------------
if (GB_IS_BINARYOP_CODE (opcode))
{
//----------------------------------------------------------------------
// rename a binary operator to its equivalent unary op
//----------------------------------------------------------------------
if (xcode == GB_BOOL_code)
{
// for boolean: DIV becomes FIRST, RDIV becomes SECOND
opcode = GB_boolean_rename (opcode) ;
}
if ((opcode == GB_FIRST_binop_code && !binop_bind1st) ||
(opcode == GB_SECOND_binop_code && binop_bind1st))
{
//------------------------------------------------------------------
// first(A,scalar) and second(scalar,A) become identity(A)
//------------------------------------------------------------------
switch (xcode)
{
case GB_BOOL_code : (*op) = (GB_Operator) GrB_IDENTITY_BOOL ; break ;
case GB_INT8_code : (*op) = (GB_Operator) GrB_IDENTITY_INT8 ; break ;
case GB_INT16_code : (*op) = (GB_Operator) GrB_IDENTITY_INT16 ; break ;
case GB_INT32_code : (*op) = (GB_Operator) GrB_IDENTITY_INT32 ; break ;
case GB_INT64_code : (*op) = (GB_Operator) GrB_IDENTITY_INT64 ; break ;
case GB_UINT8_code : (*op) = (GB_Operator) GrB_IDENTITY_UINT8 ; break ;
case GB_UINT16_code : (*op) = (GB_Operator) GrB_IDENTITY_UINT16 ; break ;
case GB_UINT32_code : (*op) = (GB_Operator) GrB_IDENTITY_UINT32 ; break ;
case GB_UINT64_code : (*op) = (GB_Operator) GrB_IDENTITY_UINT64 ; break ;
case GB_FP32_code : (*op) = (GB_Operator) GrB_IDENTITY_FP32 ; break ;
case GB_FP64_code : (*op) = (GB_Operator) GrB_IDENTITY_FP64 ; break ;
case GB_FC32_code : (*op) = (GB_Operator) GxB_IDENTITY_FC32 ; break ;
case GB_FC64_code : (*op) = (GB_Operator) GxB_IDENTITY_FC64 ; break ;
default:;
}
}
else if (opcode == GB_PAIR_binop_code)
{
//------------------------------------------------------------------
// pair(A,scalar) and pair(scalar,A) become one(A)
//------------------------------------------------------------------
(*op) = (GB_Operator) GB_unop_one (xcode) ;
}
}
else if (GB_IS_INDEXUNARYOP_CODE (opcode))
{
//----------------------------------------------------------------------
// rename an idxunop operator to its equivalent binary op
//----------------------------------------------------------------------
// All built-in GrB_IndexUnaryOps of the form GrB_VALUE* can be
// remapped to equivalent binary ops, with bind 2nd. After this
// remapping, only the positional idxunops need to be handled in
// GB_apply, as well as user-defined idxunops.
ASSERT (!binop_bind1st) ;
switch (opcode)
{
case GB_VALUENE_idxunop_code : // (aij != thunk)
switch (xcode)
{
case GB_BOOL_code : (*op) = (GB_Operator) GrB_NE_BOOL ; break ;
case GB_INT8_code : (*op) = (GB_Operator) GrB_NE_INT8 ; break ;
case GB_INT16_code : (*op) = (GB_Operator) GrB_NE_INT16 ; break ;
case GB_INT32_code : (*op) = (GB_Operator) GrB_NE_INT32 ; break ;
case GB_INT64_code : (*op) = (GB_Operator) GrB_NE_INT64 ; break ;
case GB_UINT8_code : (*op) = (GB_Operator) GrB_NE_UINT8 ; break ;
case GB_UINT16_code : (*op) = (GB_Operator) GrB_NE_UINT16 ; break ;
case GB_UINT32_code : (*op) = (GB_Operator) GrB_NE_UINT32 ; break ;
case GB_UINT64_code : (*op) = (GB_Operator) GrB_NE_UINT64 ; break ;
case GB_FP32_code : (*op) = (GB_Operator) GrB_NE_FP32 ; break ;
case GB_FP64_code : (*op) = (GB_Operator) GrB_NE_FP64 ; break ;
case GB_FC32_code : (*op) = (GB_Operator) GxB_NE_FC32 ; break ;
case GB_FC64_code : (*op) = (GB_Operator) GxB_NE_FC64 ; break ;
default:;
}
break ;
case GB_VALUEEQ_idxunop_code : // (aij == thunk)
switch (xcode)
{
case GB_BOOL_code : (*op) = (GB_Operator) GrB_EQ_BOOL ; break ;
case GB_INT8_code : (*op) = (GB_Operator) GrB_EQ_INT8 ; break ;
case GB_INT16_code : (*op) = (GB_Operator) GrB_EQ_INT16 ; break ;
case GB_INT32_code : (*op) = (GB_Operator) GrB_EQ_INT32 ; break ;
case GB_INT64_code : (*op) = (GB_Operator) GrB_EQ_INT64 ; break ;
case GB_UINT8_code : (*op) = (GB_Operator) GrB_EQ_UINT8 ; break ;
case GB_UINT16_code : (*op) = (GB_Operator) GrB_EQ_UINT16 ; break ;
case GB_UINT32_code : (*op) = (GB_Operator) GrB_EQ_UINT32 ; break ;
case GB_UINT64_code : (*op) = (GB_Operator) GrB_EQ_UINT64 ; break ;
case GB_FP32_code : (*op) = (GB_Operator) GrB_EQ_FP32 ; break ;
case GB_FP64_code : (*op) = (GB_Operator) GrB_EQ_FP64 ; break ;
case GB_FC32_code : (*op) = (GB_Operator) GxB_EQ_FC32 ; break ;
case GB_FC64_code : (*op) = (GB_Operator) GxB_EQ_FC64 ; break ;
default:;
}
break ;
case GB_VALUEGT_idxunop_code : // (aij > thunk)
switch (xcode)
{
case GB_BOOL_code : (*op) = (GB_Operator) GrB_GT_BOOL ; break ;
case GB_INT8_code : (*op) = (GB_Operator) GrB_GT_INT8 ; break ;
case GB_INT16_code : (*op) = (GB_Operator) GrB_GT_INT16 ; break ;
case GB_INT32_code : (*op) = (GB_Operator) GrB_GT_INT32 ; break ;
case GB_INT64_code : (*op) = (GB_Operator) GrB_GT_INT64 ; break ;
case GB_UINT8_code : (*op) = (GB_Operator) GrB_GT_UINT8 ; break ;
case GB_UINT16_code : (*op) = (GB_Operator) GrB_GT_UINT16 ; break ;
case GB_UINT32_code : (*op) = (GB_Operator) GrB_GT_UINT32 ; break ;
case GB_UINT64_code : (*op) = (GB_Operator) GrB_GT_UINT64 ; break ;
case GB_FP32_code : (*op) = (GB_Operator) GrB_GT_FP32 ; break ;
case GB_FP64_code : (*op) = (GB_Operator) GrB_GT_FP64 ; break ;
default:;
}
break ;
case GB_VALUEGE_idxunop_code : // (aij >= thunk)
switch (xcode)
{
case GB_BOOL_code : (*op) = (GB_Operator) GrB_GE_BOOL ; break ;
case GB_INT8_code : (*op) = (GB_Operator) GrB_GE_INT8 ; break ;
case GB_INT16_code : (*op) = (GB_Operator) GrB_GE_INT16 ; break ;
case GB_INT32_code : (*op) = (GB_Operator) GrB_GE_INT32 ; break ;
case GB_INT64_code : (*op) = (GB_Operator) GrB_GE_INT64 ; break ;
case GB_UINT8_code : (*op) = (GB_Operator) GrB_GE_UINT8 ; break ;
case GB_UINT16_code : (*op) = (GB_Operator) GrB_GE_UINT16 ; break ;
case GB_UINT32_code : (*op) = (GB_Operator) GrB_GE_UINT32 ; break ;
case GB_UINT64_code : (*op) = (GB_Operator) GrB_GE_UINT64 ; break ;
case GB_FP32_code : (*op) = (GB_Operator) GrB_GE_FP32 ; break ;
case GB_FP64_code : (*op) = (GB_Operator) GrB_GE_FP64 ; break ;
default:;
}
break ;
case GB_VALUELT_idxunop_code : // (aij < thunk)
switch (xcode)
{
case GB_BOOL_code : (*op) = (GB_Operator) GrB_LT_BOOL ; break ;
case GB_INT8_code : (*op) = (GB_Operator) GrB_LT_INT8 ; break ;
case GB_INT16_code : (*op) = (GB_Operator) GrB_LT_INT16 ; break ;
case GB_INT32_code : (*op) = (GB_Operator) GrB_LT_INT32 ; break ;
case GB_INT64_code : (*op) = (GB_Operator) GrB_LT_INT64 ; break ;
case GB_UINT8_code : (*op) = (GB_Operator) GrB_LT_UINT8 ; break ;
case GB_UINT16_code : (*op) = (GB_Operator) GrB_LT_UINT16 ; break ;
case GB_UINT32_code : (*op) = (GB_Operator) GrB_LT_UINT32 ; break ;
case GB_UINT64_code : (*op) = (GB_Operator) GrB_LT_UINT64 ; break ;
case GB_FP32_code : (*op) = (GB_Operator) GrB_LT_FP32 ; break ;
case GB_FP64_code : (*op) = (GB_Operator) GrB_LT_FP64 ; break ;
default:;
}
break ;
case GB_VALUELE_idxunop_code : // (aij <= thunk)
switch (xcode)
{
case GB_BOOL_code : (*op) = (GB_Operator) GrB_LE_BOOL ; break ;
case GB_INT8_code : (*op) = (GB_Operator) GrB_LE_INT8 ; break ;
case GB_INT16_code : (*op) = (GB_Operator) GrB_LE_INT16 ; break ;
case GB_INT32_code : (*op) = (GB_Operator) GrB_LE_INT32 ; break ;
case GB_INT64_code : (*op) = (GB_Operator) GrB_LE_INT64 ; break ;
case GB_UINT8_code : (*op) = (GB_Operator) GrB_LE_UINT8 ; break ;
case GB_UINT16_code : (*op) = (GB_Operator) GrB_LE_UINT16 ; break ;
case GB_UINT32_code : (*op) = (GB_Operator) GrB_LE_UINT32 ; break ;
case GB_UINT64_code : (*op) = (GB_Operator) GrB_LE_UINT64 ; break ;
case GB_FP32_code : (*op) = (GB_Operator) GrB_LE_FP32 ; break ;
case GB_FP64_code : (*op) = (GB_Operator) GrB_LE_FP64 ; break ;
default:;
}
break ;
default:;
}
}
}
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