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//------------------------------------------------------------------------------
// GB_add_bitmap_noM_21: C=A+B, C bitmap, A and B bitmap
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// C is bitmap.
// A and B are bitmap.
{
//--------------------------------------------------------------------------
// Method21: C, A, and B are all bitmap
//--------------------------------------------------------------------------
int tid ;
#pragma omp parallel for num_threads(C_nthreads) schedule(static) \
reduction(+:cnvals)
for (tid = 0 ; tid < C_nthreads ; tid++)
{
int64_t pstart, pend, task_cnvals = 0 ;
GB_PARTITION (pstart, pend, cnz, tid, C_nthreads) ;
for (int64_t p = pstart ; p < pend ; p++)
{
#ifdef GB_ISO_ADD
int8_t c = Ab [p] || Bb [p] ;
#else
int8_t c = 0 ;
if (Ab [p] && Bb [p])
{
// C (i,j) = A (i,j) + B (i,j)
GB_LOAD_A (aij, Ax, p, A_iso) ;
GB_LOAD_B (bij, Bx, p, B_iso) ;
GB_EWISEOP (Cx, p, aij, bij, p % vlen, p / vlen) ;
c = 1 ;
}
else if (Bb [p])
{
#if GB_IS_EWISEUNION
{
// C (i,j) = alpha + B(i,j)
GB_LOAD_B (bij, Bx, p, B_iso) ;
GB_EWISEOP (Cx, p, alpha_scalar, bij, p % vlen, p / vlen) ;
}
#else
{
// C (i,j) = B (i,j)
GB_COPY_B_to_C (Cx, p, Bx, p, B_iso) ;
}
#endif
c = 1 ;
}
else if (Ab [p])
{
#if GB_IS_EWISEUNION
{
// C (i,j) = A(i,j) + beta
GB_LOAD_A (aij, Ax, p, A_iso) ;
GB_EWISEOP (Cx, p, aij, beta_scalar, p % vlen, p / vlen) ;
}
#else
{
// C (i,j) = A (i,j)
GB_COPY_A_to_C (Cx, p, Ax, p, A_iso) ;
}
#endif
c = 1 ;
}
#endif
Cb [p] = c ;
task_cnvals += c ;
}
cnvals += task_cnvals ;
}
}
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