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//------------------------------------------------------------------------------
// GB_select_positional_phase2.c: count entries for C=select(A,thunk)
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// A is sparse or hypersparse
// JIT: not need: use factory; 3 variants (A sparse, hyper, or full for DIAG)
#include "select/GB_select.h"
#include "include/GB_unused.h"
GrB_Info GB_select_positional_phase2
(
// input/output:
GrB_Matrix C,
// input:
const void *Zp, // if C->p_is_32: 32 bit, else 64-bit
const uint64_t *restrict Cp_kfirst,
const GrB_Matrix A,
const bool flipij,
const int64_t ithunk,
const GrB_IndexUnaryOp op,
const int64_t *A_ek_slicing,
const int A_ntasks,
const int A_nthreads
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_Opcode opcode = op->opcode ;
ASSERT (GB_IS_SPARSE (A) || GB_IS_HYPERSPARSE (A) ||
(opcode == GB_DIAG_idxunop_code)) ;
ASSERT (GB_IS_INDEXUNARYOP_CODE_POSITIONAL (opcode)
|| (opcode == GB_NONZOMBIE_idxunop_code && A->iso)) ;
ASSERT (!GB_IS_BITMAP (A)) ;
//--------------------------------------------------------------------------
// phase1: positional operators and nonzombie iso selector
//--------------------------------------------------------------------------
GB_IDECL (Zp, const, u) ; GB_IPTR (Zp, C->p_is_32) ;
#define GB_A_TYPE GB_void
#include "select/include/GB_select_shared_definitions.h"
if (A->iso)
{
//----------------------------------------------------------------------
// A is iso
//----------------------------------------------------------------------
#undef GB_ISO_SELECT
#define GB_ISO_SELECT 1
switch (opcode)
{
case GB_TRIL_idxunop_code :
#define GB_TRIL_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_TRIU_idxunop_code :
#define GB_TRIU_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_DIAG_idxunop_code :
#define GB_DIAG_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_OFFDIAG_idxunop_code :
case GB_DIAGINDEX_idxunop_code :
#define GB_OFFDIAG_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_ROWINDEX_idxunop_code :
#define GB_ROWINDEX_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_ROWLE_idxunop_code :
#define GB_ROWLE_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_ROWGT_idxunop_code :
#define GB_ROWGT_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_NONZOMBIE_idxunop_code :
// keep A(i,j) if it's not a zombie
#define GB_ENTRY_SELECTOR
#define GB_TEST_VALUE_OF_ENTRY(keep,p) bool keep = (i >= 0)
// A is iso and thus so is C, so do not select the value
#define GB_SELECT_ENTRY(Cx,pC,Ax,pA)
#include "select/template/GB_select_phase2_template.c"
#undef GB_ENTRY_SELECTOR
break ;
default: ;
}
}
else
{
//----------------------------------------------------------------------
// A is non-iso
//----------------------------------------------------------------------
#undef GB_ISO_SELECT
#define GB_ISO_SELECT 0
switch (opcode)
{
case GB_TRIL_idxunop_code :
#define GB_TRIL_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_TRIU_idxunop_code :
#define GB_TRIU_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_DIAG_idxunop_code :
#define GB_DIAG_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_OFFDIAG_idxunop_code :
case GB_DIAGINDEX_idxunop_code :
#define GB_OFFDIAG_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_ROWINDEX_idxunop_code :
#define GB_ROWINDEX_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_ROWLE_idxunop_code :
#define GB_ROWLE_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
case GB_ROWGT_idxunop_code :
#define GB_ROWGT_SELECTOR
#include "select/template/GB_select_phase2_template.c"
break ;
default: ;
}
}
return (GrB_SUCCESS) ;
}
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