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//------------------------------------------------------------------------------
// GB_encodify_mxm: encode a GrB_mxm problem, including types and ops
//------------------------------------------------------------------------------
// 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_mxm // encode a GrB_mxm 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:
const bool C_iso,
const bool C_in_iso,
const int C_sparsity,
const GrB_Type ctype,
bool Cp_is_32, // if true, C->p is 32-bit; else 64
bool Cj_is_32, // if true, C->h is 32-bit; else 64
bool Ci_is_32, // if true, C->i is 32-bit; else 64
// M matrix:
const GrB_Matrix M,
const bool Mask_struct,
const bool Mask_comp,
// semiring:
const GrB_Semiring semiring,
const bool flipxy,
// A and B:
const GrB_Matrix A,
const GrB_Matrix B
)
{
//--------------------------------------------------------------------------
// check if the semiring is JIT'able
//--------------------------------------------------------------------------
if (semiring->hash == UINT64_MAX)
{
// cannot JIT this semiring
memset (encoding, 0, sizeof (GB_jit_encoding)) ;
(*suffix) = NULL ;
return (UINT64_MAX) ;
}
//--------------------------------------------------------------------------
// primary encoding of the problem
//--------------------------------------------------------------------------
encoding->kcode = kcode ;
GB_enumify_mxm (&encoding->code, C_iso, C_in_iso, C_sparsity, ctype,
Cp_is_32, Cj_is_32, Ci_is_32, M, Mask_struct, Mask_comp, semiring,
flipxy, A, B) ;
//--------------------------------------------------------------------------
// determine the suffix and its length
//--------------------------------------------------------------------------
// if hash is zero, it denotes a builtin semiring
uint64_t hash = semiring->hash ;
encoding->suffix_len = (hash == 0) ? 0 : semiring->name_len ;
(*suffix) = (hash == 0) ? NULL : semiring->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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