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//------------------------------------------------------------------------------
// GB_macrofy_select: construct all macros for select methods
//------------------------------------------------------------------------------
// 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"
void GB_macrofy_select // construct all macros for GrB_select
(
// output:
FILE *fp, // target file to write, already open
// input:
uint64_t method_code,
// operator:
const GrB_IndexUnaryOp op,
GrB_Type atype // also the type of C
)
{
//--------------------------------------------------------------------------
// extract the select method_code
//--------------------------------------------------------------------------
// C, A: 32/64 (2 hex digits)
bool Cp_is_32 = GB_RSHIFT (method_code, 33, 1) ;
bool Cj_is_32 = GB_RSHIFT (method_code, 32, 1) ;
bool Ci_is_32 = GB_RSHIFT (method_code, 31, 1) ;
bool Ap_is_32 = GB_RSHIFT (method_code, 30, 1) ;
bool Aj_is_32 = GB_RSHIFT (method_code, 29, 1) ;
bool Ai_is_32 = GB_RSHIFT (method_code, 28, 1) ;
// op, z = f(x,i,j,y), flipij, and iso codes (5 hex digits)
bool C_iso = GB_RSHIFT (method_code, 27, 1) ;
bool A_iso = GB_RSHIFT (method_code, 26, 1) ;
bool flipij = GB_RSHIFT (method_code, 25, 1) ;
#ifdef GB_DEBUG
int idxop_code = GB_RSHIFT (method_code, 20, 5) ;
#endif
int zcode = GB_RSHIFT (method_code, 16, 4) ;
int xcode = GB_RSHIFT (method_code, 12, 4) ;
int ycode = GB_RSHIFT (method_code, 8, 4) ;
// type of A (1 hex digit)
int acode = GB_RSHIFT (method_code, 4, 4) ;
// sparsity structures of C and A (1 hex digit)
int csparsity = GB_RSHIFT (method_code, 2, 2) ;
int asparsity = GB_RSHIFT (method_code, 0, 2) ;
//--------------------------------------------------------------------------
// enumify the operator
//--------------------------------------------------------------------------
int idxop_ecode ;
bool x_dep, i_dep, j_dep, y_dep ;
ASSERT (zcode == op->ztype->code) ;
ASSERT (xcode == ((op->xtype == NULL) ? 0 : op->xtype->code)) ;
ASSERT (ycode == op->ytype->code) ;
GB_enumify_unop (&idxop_ecode, &x_dep, &i_dep, &j_dep, &y_dep,
flipij, op->opcode, xcode) ;
if (!x_dep) xcode = 0 ;
if (!y_dep) ycode = 0 ;
ASSERT (idxop_code == op->opcode - GB_ROWINDEX_idxunop_code) ;
//--------------------------------------------------------------------------
// describe the operator
//--------------------------------------------------------------------------
GrB_Type xtype, ytype, ztype ;
const char *xtype_name, *ytype_name, *ztype_name ;
xtype = (xcode == 0) ? NULL : op->xtype ;
ytype = (ycode == 0) ? GrB_INT64 : op->ytype ;
ztype = op->ztype ;
xtype_name = (xtype == NULL) ? "GB_void" : xtype->name ;
ytype_name = (ytype == NULL) ? "int64_t" : ytype->name ;
ztype_name = ztype->name ;
if (op->hash == 0)
{
// builtin operator
fprintf (fp, "// op: (%s%s, %s)\n\n",
op->name, flipij ? " (flipped ij)" : "", xtype_name) ;
}
else
{
// user-defined operator
fprintf (fp,
"// op: %s%s, ztype: %s, xtype: %s, ytype: %s\n\n",
op->name, flipij ? " (flipped ij)" : "",
ztype_name, xtype_name, ytype_name) ;
}
//--------------------------------------------------------------------------
// construct the typedefs
//--------------------------------------------------------------------------
GB_macrofy_typedefs (fp, NULL, atype, NULL, xtype, ytype, ztype) ;
fprintf (fp, "// unary operator types:\n") ;
GB_macrofy_type (fp, "Z", "_", ztype_name) ;
GB_macrofy_type (fp, "X", "_", xtype_name) ;
GB_macrofy_type (fp, "Y", "_", ytype_name) ;
//--------------------------------------------------------------------------
// construct macros for the unary operator
//--------------------------------------------------------------------------
fprintf (fp, "\n// index unary operator%s:\n",
flipij ? " (flipped ij)" : "") ;
GB_macrofy_unop (fp, "GB_IDXUNOP", flipij, idxop_ecode, (GB_Operator) op) ;
fprintf (fp, "#define GB_DEPENDS_ON_X %d\n", x_dep ? 1 : 0) ;
fprintf (fp, "#define GB_DEPENDS_ON_I %d\n", i_dep ? 1 : 0) ;
fprintf (fp, "#define GB_DEPENDS_ON_J %d\n", j_dep ? 1 : 0) ;
fprintf (fp, "#define GB_DEPENDS_ON_Y %d\n", y_dep ? 1 : 0) ;
char *kind ;
switch (op->opcode)
{
case GB_TRIL_idxunop_code : kind = "TRIL" ; break ;
case GB_TRIU_idxunop_code : kind = "TRIU" ; break ;
case GB_DIAG_idxunop_code : kind = "DIAG" ; break ;
case GB_DIAGINDEX_idxunop_code :
case GB_OFFDIAG_idxunop_code : kind = "OFFDIAG" ; break ;
case GB_ROWINDEX_idxunop_code : kind = "ROWINDEX" ; break ;
case GB_COLINDEX_idxunop_code : kind = "COLINDEX" ; break ;
case GB_COLLE_idxunop_code : kind = "COLLE" ; break ;
case GB_COLGT_idxunop_code : kind = "COLGT" ; break ;
case GB_ROWLE_idxunop_code : kind = "ROWLE" ; break ;
case GB_ROWGT_idxunop_code : kind = "ROWGT" ; break ;
default : kind = "ENTRY" ; break ;
}
fprintf (fp, "#define GB_%s_SELECTOR\n", kind) ;
//--------------------------------------------------------------------------
// construct the GB_TEST_VALUE_OF_ENTRY(keep,p) macro
//--------------------------------------------------------------------------
fprintf (fp, "\n// test if A(i,j) is to be kept:\n") ;
if (zcode == GB_BOOL_code)
{
// no typecasting of z to keep
fprintf (fp, "#define GB_TEST_VALUE_OF_ENTRY(keep,p) \\\n"
" bool keep ; \\\n") ;
if (xcode == 0)
{
// operator does not depend on x
fprintf (fp, " GB_IDXUNOP (keep, , i, j, y) ;\n") ;
}
else if (acode == xcode)
{
// operator depends on x, but it has the same type as A
fprintf (fp, " GB_IDXUNOP (keep, Ax [%s], i, j, y) ;\n",
A_iso ? "0" : "p") ;
}
else
{
// must typecast from A to x
fprintf (fp, " GB_DECLAREA (x) ; \\\n"
" GB_GETA (x, Ax, p, ) ; \\\n"
" GB_IDXUNOP (keep, x, i, j, y) ;\n") ;
}
}
else
{
// must typecast z to keep
int nargs ;
const char *cast_z_to_bool = GB_macrofy_cast_expression (fp,
GrB_BOOL, ztype, &nargs) ;
fprintf (fp, "#define GB_TEST_VALUE_OF_ENTRY(keep,p) \\\n"
" GB_Z_TYPE z ; \\\n") ;
if (xcode == 0)
{
// operator does not depend on x
fprintf (fp, " GB_IDXUNOP (z, , i, j, y) ; \\\n") ;
}
else if (acode == xcode)
{
// operator depends on x, but it has the same type as A
fprintf (fp, " GB_IDXUNOP (z, Ax [%s], i, j, y) ; \\\n",
A_iso ? "0" : "p") ;
}
else
{
// must typecast from A to x
fprintf (fp, " GB_DECLAREA (x) ; \\\n"
" GB_GETA (x, Ax, p, ) ; \\\n"
" GB_IDXUNOP (z, x, i, j, y) ; \\\n") ;
}
ASSERT (cast_z_to_bool != NULL) ;
if (nargs == 3)
{
fprintf (fp, cast_z_to_bool, " bool keep", "z", "z") ;
}
else
{
fprintf (fp, cast_z_to_bool, " bool keep", "z") ;
}
}
//--------------------------------------------------------------------------
// construct the GB_SELECT_ENTRY(Cx,pC,Ax,pA) macro
//--------------------------------------------------------------------------
fprintf (fp, "\n// copy A(i,j) to C(i,j):\n"
"#define GB_SELECT_ENTRY(Cx,pC,Ax,pA)") ;
if (C_iso)
{
// C is iso: A is iso, or the operator is VALUEEQ
fprintf (fp, "\n") ;
fprintf (fp, "#define GB_ISO_SELECT 1\n") ;
}
else
{
// C and A are both non-iso
// this would need to typecast if A and C had different types
ASSERT (!A_iso) ;
fprintf (fp, " Cx [pC] = Ax [pA]\n") ;
}
//--------------------------------------------------------------------------
// construct the macros for C
//--------------------------------------------------------------------------
// C has the same type as A
GB_macrofy_output (fp, "c", "C", "C", atype, atype,
csparsity, C_iso, C_iso, Cp_is_32, Cj_is_32, Ci_is_32) ;
//--------------------------------------------------------------------------
// construct the macros for A
//--------------------------------------------------------------------------
GB_macrofy_input (fp, "a", "A", "A", true, xtype,
atype, asparsity, acode, A_iso, -1, Ap_is_32, Aj_is_32, Ai_is_32) ;
//--------------------------------------------------------------------------
// include the final default definitions
//--------------------------------------------------------------------------
fprintf (fp, "\n#include \"include/GB_select_shared_definitions.h\"\n") ;
}
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