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//------------------------------------------------------------------------------
// GB_encodify_assign: encode an assign problem, including types and op
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB.h"
#include "jitifyer/GB_stringify.h"
uint64_t GB_encodify_assign // encode an assign problem
(
// output:
GB_jit_encoding *encoding, // unique encoding of the entire problem,
// except for the suffix
char **suffix, // suffix for user-defined kernel
// input:
const GB_jit_kcode kcode, // kernel to encode
// C matrix:
GrB_Matrix C,
bool C_replace,
// index types:
bool I_is_32, // if true, I is 32-bits; else 64
bool J_is_32, // if true, J is 32-bits; else 64
int Ikind, // 0: all (no I), 1: range, 2: stride, 3: list
int Jkind, // ditto
// M matrix:
GrB_Matrix M, // may be NULL
bool Mask_comp, // mask is complemented
bool Mask_struct, // mask is structural
// operator:
GrB_BinaryOp accum, // the accum operator (may be NULL)
// A matrix or scalar
GrB_Matrix A, // NULL for scalar assignment
GrB_Type scalar_type,
// S matrix:
GrB_Matrix S, // may be NULL
int assign_kind // 0: assign, 1: subassign, 2: row, 3: col
)
{
//--------------------------------------------------------------------------
// check if the accum operator or C->type is JIT'able
//--------------------------------------------------------------------------
if ((accum != NULL && accum->hash == UINT64_MAX) ||
(accum == NULL && C->type->hash == UINT64_MAX))
{
// cannot JIT this accum operator or type
memset (encoding, 0, sizeof (GB_jit_encoding)) ;
(*suffix) = NULL ;
return (UINT64_MAX) ;
}
//--------------------------------------------------------------------------
// primary encoding of the problem
//--------------------------------------------------------------------------
encoding->kcode = kcode ;
GB_enumify_assign (&encoding->code, C, C_replace, I_is_32, J_is_32,
Ikind, Jkind, M, Mask_comp, Mask_struct, accum, A, scalar_type,
S, assign_kind) ;
//--------------------------------------------------------------------------
// determine the suffix and its length
//--------------------------------------------------------------------------
// if hash is zero, it denotes a builtin binary operator or type
uint64_t hash = 0 ;
if (accum == NULL)
{
// use the hash and name of the C->type
hash = C->type->hash ;
encoding->suffix_len = (hash == 0) ? 0 : C->type->name_len ;
(*suffix) = (hash == 0) ? NULL : C->type->name ;
}
else
{
// use the hash and name of the accum operator
hash = accum->hash ;
encoding->suffix_len = (hash == 0) ? 0 : accum->name_len ;
(*suffix) = (hash == 0) ? NULL : accum->name ;
}
//--------------------------------------------------------------------------
// compute the hash of the entire problem
//--------------------------------------------------------------------------
hash = hash ^ GB_jitifyer_hash_encoding (encoding) ;
return ((hash == 0 || hash == UINT64_MAX) ? GB_MAGIC : hash) ;
}
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