void libxsmm_function_signature( libxsmm_generated_code* io_generated_code,
const char* i_routine_name,
const libxsmm_xgemm_descriptor* i_xgemm_desc ) {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
if ( io_generated_code->code_type > 1 ) {
return;
} else if ( io_generated_code->code_type == 1 ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, ".global %s\n.type %s, @function\n%s:\n", i_routine_name, i_routine_name, i_routine_name);
} else {
/* selecting the correct signature */
if (0 != (LIBXSMM_XGEMM_FLAG_F32PREC & i_xgemm_desc->flags)) {
if (LIBXSMM_PREFETCH_NONE == i_xgemm_desc->prefetch) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "void %s(const float* A, const float* B, float* C) {\n", i_routine_name);
} else {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "void %s(const float* A, const float* B, float* C, const float* A_prefetch, const float* B_prefetch, const float* C_prefetch) {\n", i_routine_name);
}
} else {
if (LIBXSMM_PREFETCH_NONE == i_xgemm_desc->prefetch) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "void %s(const double* A, const double* B, double* C) {\n", i_routine_name);
} else {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "void %s(const double* A, const double* B, double* C, const double* A_prefetch, const double* B_prefetch, const double* C_prefetch) {\n", i_routine_name);
}
}
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
void libxsmm_instruction_vec_shuffle_reg( libxsmm_generated_code* io_generated_code,
const unsigned int i_instruction_set,
const unsigned int i_vec_instr,
const char i_vector_name,
const unsigned int i_vec_reg_number_0,
const unsigned int i_vec_reg_number_1,
const unsigned int i_vec_reg_number_2,
const unsigned int i_shuffle_operand ) {
/* @TODO add checks in debug mode */
if ( io_generated_code->code_type > 1 ) {
/* @TODO-GREG call encoding here */
} else {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
char l_instr_name[16];
libxsmm_get_x86_instr_name( i_vec_instr, l_instr_name, 15 );
if ( i_instruction_set != LIBXSMM_X86_SSE3 ) {
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s $%i, %%%%%cmm%i, %%%%%cmm%i, %%%%%cmm%i\\n\\t\"\n", l_instr_name, i_shuffle_operand, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1, i_vector_name, i_vec_reg_number_2 );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s $%i, %%%cmm%i, %%%cmm%i, %%%cmm%i\n", l_instr_name, i_shuffle_operand, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1, i_vector_name, i_vec_reg_number_2 );
}
} else {
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s $%i, %%%%%cmm%i, %%%%%cmm%i\\n\\t\"\n", l_instr_name, i_shuffle_operand, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1 );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s $%i, %%%cmm%i, %%%cmm%i\n", l_instr_name, i_shuffle_operand, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1 );
}
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
}
void libxsmm_instruction_alu_reg( libxsmm_generated_code* io_generated_code,
const unsigned int i_alu_instr,
const unsigned int i_gp_reg_number_src,
const unsigned int i_gp_reg_number_dest) {
/* @TODO add checks in debug mode */
if ( io_generated_code->code_type > 1 ) {
/* @TODO-GREG call encoding here */
} else {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
char l_gp_reg_name_src[4];
char l_gp_reg_name_dest[4];
libxsmm_get_x86_gp_reg_name( i_gp_reg_number_src, l_gp_reg_name_src, 3 );
libxsmm_get_x86_gp_reg_name( i_gp_reg_number_dest, l_gp_reg_name_dest, 3 );
char l_instr_name[16];
libxsmm_get_x86_instr_name( i_alu_instr, l_instr_name, 15 );
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %%%%%s, %%%%%s\\n\\t\"\n", l_instr_name, l_gp_reg_name_src, l_gp_reg_name_dest );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %%%s, %%%s\n", l_instr_name, l_gp_reg_name_src, l_gp_reg_name_dest );
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
}
void libxsmm_instruction_register_jump_label( libxsmm_generated_code* io_generated_code,
libxsmm_loop_label_tracker* io_loop_label_tracker ) {
/* check if we still have lable we can jump to */
if ( io_loop_label_tracker->label_count == 32 ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_EXCEED_JMPLBL );
return;
}
/* @TODO add checks in debug mode */
if ( io_generated_code->code_type > 1 ) {
/* @TODO-GREG call encoding here */
} else {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
io_loop_label_tracker->label_address[io_loop_label_tracker->label_count] = io_loop_label_tracker->label_count;
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%i:\\n\\t\"\n", io_loop_label_tracker->label_address[io_loop_label_tracker->label_count] );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %i:\n", io_loop_label_tracker->label_address[io_loop_label_tracker->label_count] );
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
io_loop_label_tracker->label_count++;
}
}
void libxsmm_instruction_prefetch( libxsmm_generated_code* io_generated_code,
const unsigned int i_prefetch_instr,
const unsigned int i_gp_reg_base,
const unsigned int i_gp_reg_idx,
const unsigned int i_scale,
const int i_displacement ) {
#ifndef NDEBUG
if ( i_gp_reg_idx != LIBXSMM_X86_GP_REG_UNDEF ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_NO_INDEX_SCALE_ADDR );
return;
}
#endif
/* @TODO add checks in debug mode */
if ( io_generated_code->code_type > 1 ) {
/* @TODO-GREG call encoding here */
} else {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
char l_gp_reg_base_name[4];
libxsmm_get_x86_gp_reg_name( i_gp_reg_base, l_gp_reg_base_name, 3 );
char l_instr_name[16];
libxsmm_get_x86_instr_name( i_prefetch_instr, l_instr_name, 15 );
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %i(%%%%%s)\\n\\t\"\n", l_instr_name, i_displacement, l_gp_reg_base_name );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %i(%%%s)\n", l_instr_name, i_displacement, l_gp_reg_base_name );
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
}
void libxsmm_close_function( libxsmm_generated_code* io_generated_code ) {
if ( io_generated_code->code_type == 0 ) {
char l_new_code[512];
const int l_max_code_length = 511;
const int l_code_length = LIBXSMM_SNPRINTF( l_new_code, l_max_code_length, "}\n\n" );
libxsmm_append_code_as_string(io_generated_code, l_new_code, l_code_length );
}
}
void libxsmm_instruction_jump_back_to_label( libxsmm_generated_code* io_generated_code,
const unsigned int i_jmp_instr,
libxsmm_loop_label_tracker* io_loop_label_tracker ) {
/* check that we just handle jl */
if ( i_jmp_instr != LIBXSMM_X86_INSTR_JL) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_UNSUPPORTED_JUMP );
return;
}
/* check if we still have lable we can jump to */
if ( io_loop_label_tracker->label_count == 0 ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_NO_JMPLBL_AVAIL );
return;
}
/* @TODO add checks in debug mode */
if ( io_generated_code->code_type > 1 ) {
/* @TODO-GREG call encoding here */
} else {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
char l_instr_name[16];
libxsmm_get_x86_instr_name( i_jmp_instr, l_instr_name, 15 );
io_loop_label_tracker->label_count--;
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %ib\\n\\t\"\n", l_instr_name, io_loop_label_tracker->label_address[io_loop_label_tracker->label_count] );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %ib\n", l_instr_name, io_loop_label_tracker->label_address[io_loop_label_tracker->label_count] );
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
io_loop_label_tracker->label_address[io_loop_label_tracker->label_count] = 0;
}
}
void libxsmm_instruction_mask_move( libxsmm_generated_code* io_generated_code,
const unsigned int i_mask_instr,
const unsigned int i_gp_reg_number,
const unsigned int i_mask_reg_number ) {
/* @TODO add checks in debug mode */
if ( io_generated_code->code_type > 1 ) {
/* @TODO-GREG call encoding here */
} else {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
char l_gp_reg_name[4];
libxsmm_get_x86_gp_reg_name( i_gp_reg_number, l_gp_reg_name, 3 );
char l_instr_name[16];
libxsmm_get_x86_instr_name( i_mask_instr, l_instr_name, 15 );
char l_prefix = '\0';
/* check if we need to add a prefix for accessing 32bit in a 64bit register */
if ( i_gp_reg_number == LIBXSMM_X86_GP_REG_R8 ||
i_gp_reg_number == LIBXSMM_X86_GP_REG_R9 ||
i_gp_reg_number == LIBXSMM_X86_GP_REG_R10 ||
i_gp_reg_number == LIBXSMM_X86_GP_REG_R11 ||
i_gp_reg_number == LIBXSMM_X86_GP_REG_R12 ||
i_gp_reg_number == LIBXSMM_X86_GP_REG_R13 ||
i_gp_reg_number == LIBXSMM_X86_GP_REG_R14 ||
i_gp_reg_number == LIBXSMM_X86_GP_REG_R15 ) {
l_prefix = 'd';
}
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %%%%%s%c, %%%%k%i\\n\\t\"\n", l_instr_name, l_gp_reg_name, l_prefix, i_mask_reg_number );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %%%s%c, %%k%i\n", l_instr_name, l_gp_reg_name, l_prefix, i_mask_reg_number );
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
}
LIBXSMM_INTERNAL_API_DEFINITION
void libxsmm_generator_gemm_add_flop_counter( libxsmm_generated_code* io_generated_code,
const libxsmm_gemm_descriptor* i_xgemm_desc ) {
if ( io_generated_code->code_type == 0 ) {
char l_new_code[512];
const unsigned int l_max_code_length = sizeof(l_new_code) - 1;
int l_code_length = 0;
l_code_length = LIBXSMM_SNPRINTF( l_new_code, l_max_code_length, "#ifndef NDEBUG\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF( l_new_code, l_max_code_length, "#ifdef _OPENMP\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF( l_new_code, l_max_code_length, "#pragma omp atomic\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF( l_new_code, l_max_code_length, "#endif\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF( l_new_code, l_max_code_length, "libxsmm_num_total_flops += %u;\n", 2u * i_xgemm_desc->m * i_xgemm_desc->n * i_xgemm_desc->k);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF( l_new_code, l_max_code_length, "#endif\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
}
LIBXSMM_API_INTERN
void libxsmm_sparse_csc_asparse_innerloop_four_vector( libxsmm_generated_code* io_generated_code,
const libxsmm_gemm_descriptor* i_xgemm_desc,
const unsigned int i_k,
const unsigned int i_z,
const unsigned int* i_row_idx,
const unsigned int* i_column_idx ) {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
if ( LIBXSMM_GEMM_PRECISION_F64 == LIBXSMM_GETENUM_INP( i_xgemm_desc->datatype ) ) {
unsigned int l_i;
unsigned int l_z = i_z;
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#if defined(__SSE3__) && defined(__AVX__)\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " __m256d c%u_%u = _mm256_loadu_pd(&C[(l_n*%u)+%u]);\n", i_k, i_z, (unsigned int)i_xgemm_desc->ldc, i_row_idx[i_column_idx[i_k] + i_z] );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " __m256d a%u_%u = _mm256_loadu_pd(&A[%u]);\n", i_k, i_z, i_column_idx[i_k] + i_z );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " c%u_%u = _mm256_add_pd(c%u_%u, _mm256_mul_pd(a%u_%u, b%u));\n", i_k, i_z, i_k, i_z, i_k, i_z, i_k );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " _mm256_storeu_pd(&C[(l_n*%u)+%u], c%u_%u);\n", (unsigned int)i_xgemm_desc->ldc, i_row_idx[i_column_idx[i_k] + i_z], i_k, i_z );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#endif\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#if defined(__SSE3__) && !defined(__AVX__)\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
for ( l_i = 0; l_i < 2; l_i++ ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " __m128d c%u_%u = _mm_loadu_pd(&C[(l_n*%u)+%u]);\n", i_k, l_z, (unsigned int)i_xgemm_desc->ldc, i_row_idx[i_column_idx[i_k] + l_z] );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " __m128d a%u_%u = _mm_loadu_pd(&A[%u]);\n", i_k, l_z, i_column_idx[i_k] + l_z );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " c%u_%u = _mm_add_pd(c%u_%u, _mm_mul_pd(a%u_%u, b%u));\n", i_k, l_z, i_k, l_z, i_k, l_z, i_k );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " _mm_storeu_pd(&C[(l_n*%u)+%u], c%u_%u);\n", (unsigned int)i_xgemm_desc->ldc, i_row_idx[i_column_idx[i_k] + l_z], i_k, l_z );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_z += 2;
}
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#endif\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
} else {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " __m128 c%u_%u = _mm_loadu_ps(&C[(l_n*%u)+%u]);\n", i_k, i_z, (unsigned int)i_xgemm_desc->ldc, i_row_idx[i_column_idx[i_k] + i_z] );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " __m128 a%u_%u = _mm_loadu_ps(&A[%u]);\n", i_k, i_z, i_column_idx[i_k] + i_z );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " c%u_%u = _mm_add_ps(c%u_%u, _mm_mul_ps(a%u_%u, b%u));\n", i_k, i_z, i_k, i_z, i_k, i_z, i_k );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " _mm_storeu_ps(&C[(l_n*%u)+%u], c%u_%u);\n", (unsigned int)i_xgemm_desc->ldc, i_row_idx[i_column_idx[i_k] + i_z], i_k, i_z );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
}
void libxsmm_generator_sparse_bsparse( libxsmm_generated_code* io_generated_code,
const libxsmm_xgemm_descriptor* i_xgemm_desc,
const char* i_arch,
const unsigned int* i_row_idx,
const unsigned int* i_column_idx,
const double* i_values ) {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " unsigned int l_m = 0;\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* reset C if beta is zero */
if ( i_xgemm_desc->beta == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " unsigned int l_n = 0;\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " for ( l_n = 0; l_n < %u; l_n++) {\n", i_xgemm_desc->n);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
if ( i_xgemm_desc->m > 1 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " #pragma simd\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " #pragma vector aligned\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
if ( i_xgemm_desc->single_precision == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " for ( l_m = 0; l_m < %u; l_m++) { C[(l_n*%u)+l_m] = 0.0; }\n", i_xgemm_desc->m, i_xgemm_desc->ldc);
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " for ( l_m = 0; l_m < %u; l_m++) { C[(l_n*%u)+l_m] = 0.0f; }\n", i_xgemm_desc->m, i_xgemm_desc->ldc);
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " }\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, "\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* determine the correct simd pragma for each architecture */
if ( ( strcmp( i_arch, "noarch" ) == 0 ) ||
( strcmp( i_arch, "wsm" ) == 0 ) ||
( strcmp( i_arch, "snb" ) == 0 ) ||
( strcmp( i_arch, "hsw" ) == 0 ) ) {
if ( i_xgemm_desc->m > 7 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " #pragma simd vectorlength(8)\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
} else if ( i_xgemm_desc->m > 3 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " #pragma simd vectorlength(4)\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
} else if ( i_xgemm_desc->m > 1 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " #pragma simd vectorlength(2)\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
} else {}
if ( (i_xgemm_desc->m > 1) &&
(i_xgemm_desc->aligned_a != 0) &&
(i_xgemm_desc->aligned_c != 0) ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " #pragma vector aligned\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
} else if ( ( strcmp( i_arch, "knc" ) == 0 ) ||
( strcmp( i_arch, "knl" ) == 0 ) ||
( strcmp( i_arch, "skx" ) == 0 ) ) {
if ( (i_xgemm_desc->m > 1) &&
(i_xgemm_desc->aligned_a != 0) &&
(i_xgemm_desc->aligned_c != 0) ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " #pragma simd vectorlength(32)\n #pragma vector aligned\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
} else {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_ARCH );
return;
}
/* generate the actuel kernel */
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " for ( l_m = 0; l_m < %u; l_m++) {\n", i_xgemm_desc->m);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
unsigned int l_n;
unsigned int l_z;
unsigned int l_column_elements;
unsigned int l_flop_count = 0;
for ( l_n = 0; l_n < i_xgemm_desc->n; l_n++ ) {
l_column_elements = i_column_idx[l_n+1] - i_column_idx[l_n];
for ( l_z = 0; l_z < l_column_elements; l_z++ ) {
/* check k such that we just use rows which actually need to be multiplied */
if ( i_row_idx[i_column_idx[l_n] + l_z] < i_xgemm_desc->k ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " C[%u+l_m] += A[%u+l_m] * B[%u];\n", l_n * i_xgemm_desc->ldc, i_row_idx[i_column_idx[l_n] + l_z]*i_xgemm_desc->lda, i_column_idx[l_n] + l_z);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_flop_count += 2;
}
}
}
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " }\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* add flop counter */
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, "\n#ifndef NDEBUG\n#ifdef _OPENMP\n#pragma omp atomic\n#endif\nlibxsmm_num_total_flops += %u;\n#endif\n", l_flop_count * i_xgemm_desc->m);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
void libxsmm_generator_dense_noarch_kernel( libxsmm_generated_code* io_generated_code,
const libxsmm_xgemm_descriptor* i_xgemm_desc,
const char* i_arch ) {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
LIBXSMM_UNUSED(i_arch);
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " unsigned int l_m = 0;\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " unsigned int l_n = 0;\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " unsigned int l_k = 0;\n\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " for ( l_n = 0; l_n < %u; l_n++ ) {\n", i_xgemm_desc->n);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
if ( i_xgemm_desc->beta == 0 ) {
if ( (LIBXSMM_XGEMM_FLAG_F32PREC & i_xgemm_desc->flags) == 0 ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " for ( l_m = 0; l_m < %u; l_m++ ) { C[(l_n*%u)+l_m] = 0.0; }\n\n", i_xgemm_desc->m, i_xgemm_desc->ldc);
} else {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " for ( l_m = 0; l_m < %u; l_m++ ) { C[(l_n*%u)+l_m] = 0.0f; }\n\n", i_xgemm_desc->m, i_xgemm_desc->ldc);
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " for ( l_k = 0; l_k < %u; l_k++ ) {\n", i_xgemm_desc->k);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " #pragma simd\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " for ( l_m = 0; l_m < %u; l_m++ ) {\n", i_xgemm_desc->m);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " C[(l_n*%u)+l_m] += A[(l_k*%u)+l_m] * B[(l_n*%u)+l_k];\n", i_xgemm_desc->ldc, i_xgemm_desc->lda, i_xgemm_desc->ldb);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " }\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " }\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " }\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
void libxsmm_sparse_asparse_innerloop_scalar( libxsmm_generated_code* io_generated_code,
const libxsmm_gemm_descriptor* i_xgemm_desc,
const unsigned int i_k,
const unsigned int i_z,
const unsigned int* i_row_idx,
const unsigned int* i_column_idx ) {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
if ( (LIBXSMM_GEMM_FLAG_F32PREC & i_xgemm_desc->flags) == 0 ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " __m128d c%u_%u = _mm_load_sd(&C[(l_n*%u)+%u]);\n", i_k, i_z, i_xgemm_desc->ldc, i_row_idx[i_column_idx[i_k] + i_z] );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " __m128d a%u_%u = _mm_load_sd(&A[%u]);\n", i_k, i_z, i_column_idx[i_k] + i_z );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#if defined(__SSE3__) && defined(__AVX__)\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " c%u_%u = _mm_add_sd(c%u_%u, _mm_mul_sd(a%u_%u, _mm256_castpd256_pd128(b%u)));\n", i_k, i_z, i_k, i_z, i_k, i_z, i_k );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#endif\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#if defined(__SSE3__) && !defined(__AVX__)\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " c%u_%u = _mm_add_sd(c%u_%u, _mm_mul_sd(a%u_%u, b%u));\n", i_k, i_z, i_k, i_z, i_k, i_z, i_k );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#endif\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " _mm_store_sd(&C[(l_n*%u)+%u], c%u_%u);\n", i_xgemm_desc->ldc, i_row_idx[i_column_idx[i_k] + i_z], i_k, i_z );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
} else {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " __m128 c%u_%u = _mm_load_ss(&C[(l_n*%u)+%u]);\n", i_k, i_z, i_xgemm_desc->ldc, i_row_idx[i_column_idx[i_k] + i_z] );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " __m128 a%u_%u = _mm_load_ss(&A[%u]);\n", i_k, i_z, i_column_idx[i_k] + i_z );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " c%u_%u = _mm_add_ss(c%u_%u, _mm_mul_ss(a%u_%u, b%u));\n", i_k, i_z, i_k, i_z, i_k, i_z, i_k );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " _mm_store_ss(&C[(l_n*%u)+%u], c%u_%u);\n", i_xgemm_desc->ldc, i_row_idx[i_column_idx[i_k] + i_z], i_k, i_z );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
}
void libxsmm_instruction_vec_move( libxsmm_generated_code* io_generated_code,
const unsigned int i_instruction_set,
const unsigned int i_vmove_instr,
const unsigned int i_gp_reg_base,
const unsigned int i_gp_reg_idx,
const unsigned int i_scale,
const int i_displacement,
const char i_vector_name,
const unsigned int i_vec_reg_number_0,
const unsigned int i_use_masking,
const unsigned int i_is_store ) {
#ifndef NDEBUG
if ( i_gp_reg_idx != LIBXSMM_X86_GP_REG_UNDEF ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_NO_INDEX_SCALE_ADDR );
return;
}
#endif
/* @TODO add checks in debug mode */
if ( io_generated_code->code_type > 1 ) {
/* @TODO-GREG call encoding here */
} else {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
char l_gp_reg_base_name[4];
libxsmm_get_x86_gp_reg_name( i_gp_reg_base, l_gp_reg_base_name, 3 );
char l_instr_name[16];
libxsmm_get_x86_instr_name( i_vmove_instr, l_instr_name, 15 );
if ( (i_instruction_set == LIBXSMM_X86_AVX512) && (i_use_masking != 0) ) {
/* build vmovpd/ps/sd/ss instruction, load use */
if ( i_is_store == 0 ) {
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %i(%%%%%s), %%%%%cmm%i%%{%%%%k%i%%}%%{z%%}\\n\\t\"\n", l_instr_name, i_displacement, l_gp_reg_base_name, i_vector_name, i_vec_reg_number_0, LIBXSMM_X86_IMCI_AVX512_MASK );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %i(%%%s), %%%cmm%i{%%k%i}{z}\n", l_instr_name, i_displacement, l_gp_reg_base_name, i_vector_name, i_vec_reg_number_0, LIBXSMM_X86_IMCI_AVX512_MASK );
}
} else {
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %%%%%cmm%i, %i(%%%%%s)%%{%%%%k%i%%}\\n\\t\"\n", l_instr_name, i_vector_name, i_vec_reg_number_0, i_displacement, l_gp_reg_base_name, LIBXSMM_X86_IMCI_AVX512_MASK );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %%%cmm%i, %i(%%%s){%%k%i}\n", l_instr_name, i_vector_name, i_vec_reg_number_0, i_displacement, l_gp_reg_base_name, LIBXSMM_X86_IMCI_AVX512_MASK );
}
}
} else if ( (i_instruction_set == LIBXSMM_X86_IMCI) && (i_use_masking != 0) ) {
/* build vmovpd/ps/sd/ss instruction, load use */
if ( i_is_store == 0 ) {
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %i(%%%%%s), %%%%%cmm%i%%{%%%%k%i%%}\\n\\t\"\n", l_instr_name, i_displacement, l_gp_reg_base_name, i_vector_name, i_vec_reg_number_0, LIBXSMM_X86_IMCI_AVX512_MASK );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %i(%%%s), %%%cmm%i{%%k%i}\n", l_instr_name, i_displacement, l_gp_reg_base_name, i_vector_name, i_vec_reg_number_0, LIBXSMM_X86_IMCI_AVX512_MASK );
}
} else {
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %%%%%cmm%i, %i(%%%%%s)%%{%%%%k%i%%}\\n\\t\"\n", l_instr_name, i_vector_name, i_vec_reg_number_0, i_displacement, l_gp_reg_base_name, LIBXSMM_X86_IMCI_AVX512_MASK );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %%%cmm%i, %i(%%%s){%%k%i}\n", l_instr_name, i_vector_name, i_vec_reg_number_0, i_displacement, l_gp_reg_base_name, LIBXSMM_X86_IMCI_AVX512_MASK );
}
}
} else {
/* build vmovpd/ps/sd/ss instruction, load use */
if ( i_is_store == 0 ) {
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %i(%%%%%s), %%%%%cmm%i\\n\\t\"\n", l_instr_name, i_displacement, l_gp_reg_base_name, i_vector_name, i_vec_reg_number_0 );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %i(%%%s), %%%cmm%i\n", l_instr_name, i_displacement, l_gp_reg_base_name, i_vector_name, i_vec_reg_number_0 );
}
} else {
if ( io_generated_code->code_type == 0 ) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %%%%%cmm%i, %i(%%%%%s)\\n\\t\"\n", l_instr_name, i_vector_name, i_vec_reg_number_0, i_displacement, l_gp_reg_base_name );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %%%cmm%i, %i(%%%s)\n", l_instr_name, i_vector_name, i_vec_reg_number_0, i_displacement, l_gp_reg_base_name );
}
}
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
}
void libxsmm_generator_dense_x86_open_instruction_stream( libxsmm_generated_code* io_generated_code,
const libxsmm_gp_reg_mapping* i_gp_reg_mapping,
const char* i_arch,
const char* i_prefetch) {
/* @TODO add checks in debug mode */
if ( io_generated_code->code_type > 1 ) {
/* @TODO-GREG call encoding here */
/* @TODO-GREG: how do we interface here? */
/* this is start of the xGEMM kernel, the registers are in the variables */
} else if ( io_generated_code->code_type == 1 ) {
/* @TODO this is currently System V AMD64 RTL(C) ABI only */
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
char l_gp_reg_name[4];
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_a ) ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_CALLEE_SAVE_A );
return;
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_b ) ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_CALLEE_SAVE_B );
return;
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_c ) ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_CALLEE_SAVE_C );
return;
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_a_prefetch ) ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_CALLEE_SAVE_A_PREF );
return;
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_b_prefetch ) ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_CALLEE_SAVE_B_PREF );
return;
}
if ( (strcmp(i_arch, "wsm") == 0) ||
(strcmp(i_arch, "snb") == 0) ||
(strcmp(i_arch, "hsw") == 0) ) {
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_mloop ) ) {
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_mloop, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " pushq %%%s\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_nloop ) ) {
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_nloop, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " pushq %%%s\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_kloop ) ) {
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_kloop, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " pushq %%%s\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
} else {
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " pushq %rbx\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " pushq %r12\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " pushq %r13\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " pushq %r14\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " pushq %r15\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
} else {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
char l_gp_reg_name[4];
/* loading b pointer in assembley */
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_b, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " __asm__ __volatile__(\"movq %%0, %%%%%s\\n\\t\"\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* loading a pointer in assembley */
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_a, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " \"movq %%1, %%%%%s\\n\\t\"\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* loading c pointer in assembley */
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_c, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " \"movq %%2, %%%%%s\\n\\t\"\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* loading b prefetch pointer in assembly */
if ( ( strcmp(i_prefetch, "BL2viaC") == 0 ) ||
( strcmp(i_prefetch, "curAL2_BL2viaC") == 0 ) ) {
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_b_prefetch, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " \"movq %%3, %%%%%s\\n\\t\"\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* loading a prefetch pointer in assembly */
} else if ( ( strcmp(i_prefetch, "AL2jpst") == 0 ) ||
( strcmp(i_prefetch, "AL2") == 0 ) ) {
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_a_prefetch, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " \"movq %%3, %%%%%s\\n\\t\"\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* loading a and b prefetch pointer in assembly */
} else if ( ( strcmp(i_prefetch, "AL2jpst_BL2viaC") == 0 ) ||
( strcmp(i_prefetch, "AL2_BL2viaC") == 0 ) ) {
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_a_prefetch, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " \"movq %%3, %%%%%s\\n\\t\"\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_b_prefetch, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " \"movq %%4, %%%%%s\\n\\t\"\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
} else {}
}
/* reset loop counters */
libxsmm_instruction_alu_imm( io_generated_code, LIBXSMM_X86_INSTR_MOVQ, i_gp_reg_mapping->gp_reg_mloop, 0 );
libxsmm_instruction_alu_imm( io_generated_code, LIBXSMM_X86_INSTR_MOVQ, i_gp_reg_mapping->gp_reg_nloop, 0 );
libxsmm_instruction_alu_imm( io_generated_code, LIBXSMM_X86_INSTR_MOVQ, i_gp_reg_mapping->gp_reg_kloop, 0 );
}
void libxsmm_generator_sparse_asparse( libxsmm_generated_code* io_generated_code,
const libxsmm_gemm_descriptor* i_xgemm_desc,
const char* i_arch,
const unsigned int* i_row_idx,
const unsigned int* i_column_idx,
const double* i_values ) {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
unsigned int l_k;
unsigned int l_flop_count = 0;
LIBXSMM_UNUSED(i_arch);
LIBXSMM_UNUSED(i_values);
/* loop over columns in C in generated code, we fully unroll inside each column */
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " unsigned int l_n = 0;\n #pragma nounroll_and_jam\n for ( l_n = 0; l_n < %u; l_n++) {\n", i_xgemm_desc->n);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* reset the current column in C if needed */
if ( i_xgemm_desc->beta == 0 ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " unsigned int l_m = 0;\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
if ( i_xgemm_desc->m > 1 ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " #pragma simd\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
if ( (LIBXSMM_GEMM_FLAG_F32PREC & i_xgemm_desc->flags) == 0 ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " for ( l_m = 0; l_m < %u; l_m++) {\n C[(l_n*%u)+l_m] = 0.0;\n }\n", i_xgemm_desc->m, i_xgemm_desc->ldc);
} else {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " for ( l_m = 0; l_m < %u; l_m++) {\n C[(l_n*%u)+l_m] = 0.0f;\n }\n", i_xgemm_desc->m, i_xgemm_desc->ldc);
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
/* loop over columns in A, rows in B and fully unroll */
for ( l_k = 0; l_k < i_xgemm_desc->k; l_k++ ) {
unsigned int l_column_elements = i_column_idx[l_k + 1] - i_column_idx[l_k];
unsigned int l_z = 0;
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#if defined(__SSE3__) || defined(__AVX__)\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
if ( l_column_elements > 0 ) {
if ( (LIBXSMM_GEMM_FLAG_F32PREC & i_xgemm_desc->flags) == 0 ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#if defined(__SSE3__) && defined(__AVX__)\n __m256d b%u = _mm256_broadcast_sd(&B[(l_n*%u)+%u]);\n#endif\n", l_k, i_xgemm_desc->ldb, l_k);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#if defined(__SSE3__) && !defined(__AVX__)\n __m128d b%u = _mm_loaddup_pd(&B[(l_n*%u)+%u]);\n#endif\n", l_k, i_xgemm_desc->ldb, l_k);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
} else {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#if defined(__SSE3__) && defined(__AVX__)\n __m128 b%u = _mm_broadcast_ss(&B[(l_n*%u)+%u]);\n#endif\n", l_k, i_xgemm_desc->ldb, l_k);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#if defined(__SSE3__) && !defined(__AVX__)\n __m128 b%u = _mm_load_ss(&B[(l_n*%u)+%u]); b%u = _mm_shuffle_ps(b%u, b%u, 0x00);\n#endif\n", l_k, i_xgemm_desc->ldb, l_k, l_k, l_k, l_k);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
}
/* loop over the columns of A and look for vectorization potential */
for ( l_z = 0; l_z < l_column_elements; l_z++ ) {
/* 4 element vector might be possible */
if ( (l_z < (l_column_elements - 3)) && (l_column_elements > 3) ) {
/* check for 256bit vector instruction */
if ((i_row_idx[i_column_idx[l_k] + l_z] + 1 == i_row_idx[i_column_idx[l_k] + l_z + 1]) &&
(i_row_idx[i_column_idx[l_k] + l_z] + 2 == i_row_idx[i_column_idx[l_k] + l_z + 2]) &&
(i_row_idx[i_column_idx[l_k] + l_z] + 3 == i_row_idx[i_column_idx[l_k] + l_z + 3]) &&
(i_row_idx[i_column_idx[l_k] + l_z + 3] < i_xgemm_desc->m)) {
libxsmm_sparse_asparse_innerloop_four_vector(io_generated_code, i_xgemm_desc, l_k, l_z, i_row_idx, i_column_idx);
l_z += 3;
/* check for 128bit vector instruction */
} else if ((i_row_idx[i_column_idx[l_k] + l_z] + 1 == i_row_idx[i_column_idx[l_k] + l_z + 1]) &&
(i_row_idx[i_column_idx[l_k] + l_z + 1] < i_xgemm_desc->m) ) {
libxsmm_sparse_asparse_innerloop_two_vector(io_generated_code, i_xgemm_desc, l_k, l_z, i_row_idx, i_column_idx);
l_z++;
/* scalare instruction */
} else {
if ( (i_row_idx[i_column_idx[l_k] + l_z] < i_xgemm_desc->m) ) {
libxsmm_sparse_asparse_innerloop_scalar(io_generated_code, i_xgemm_desc, l_k, l_z, i_row_idx, i_column_idx);
}
}
/* 2 element vector might be possible */
} else if ( (l_z < (l_column_elements - 1)) && (l_column_elements > 1)) {
/* check for 128bit vector instruction */
if ((i_row_idx[i_column_idx[l_k] + l_z] + 1 == i_row_idx[i_column_idx[l_k] + l_z + 1]) &&
(i_row_idx[i_column_idx[l_k] + l_z + 1] < i_xgemm_desc->m) ) {
libxsmm_sparse_asparse_innerloop_two_vector(io_generated_code, i_xgemm_desc, l_k, l_z, i_row_idx, i_column_idx);
l_z++;
/* scalare instruction */
} else {
if ( (i_row_idx[i_column_idx[l_k] + l_z] < i_xgemm_desc->m) ) {
libxsmm_sparse_asparse_innerloop_scalar(io_generated_code, i_xgemm_desc, l_k, l_z, i_row_idx, i_column_idx);
}
}
/* scalar anayways */
} else {
if ( (i_row_idx[i_column_idx[l_k] + l_z] < i_xgemm_desc->m) ) {
libxsmm_sparse_asparse_innerloop_scalar(io_generated_code, i_xgemm_desc, l_k, l_z, i_row_idx, i_column_idx);
}
}
}
/* C fallback code */
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#else\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* loop over the columns of A */
for ( l_z = 0; l_z < l_column_elements; l_z++ ) {
if ( (i_row_idx[i_column_idx[l_k] + l_z] < i_xgemm_desc->m) ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " C[(l_n*%u)+%u] += A[%u] * B[(l_n*%u)+%u];\n", i_xgemm_desc->ldc, i_row_idx[i_column_idx[l_k] + l_z], i_column_idx[l_k] + l_z, i_xgemm_desc->ldb, l_k );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_flop_count += 2;
}
}
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "#endif\n\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " }\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* add flop counter */
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "\n#ifndef NDEBUG\n#ifdef _OPENMP\n#pragma omp atomic\n#endif\nlibxsmm_num_total_flops += %u;\n#endif\n", l_flop_count * i_xgemm_desc->n);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
void libxsmm_generator_dense_x86_close_instruction_stream( libxsmm_generated_code* io_generated_code,
const libxsmm_gp_reg_mapping* i_gp_reg_mapping,
const char* i_arch,
const char* i_prefetch) {
/* @TODO add checks in debug mode */
if ( io_generated_code->code_type > 1 ) {
/* @TODO-GREG call encoding here */
/* @TODO-GREG: how do we interface here? */
/* this is start of the xGEMM kernel, the registers are in the variables */
} else if ( io_generated_code->code_type == 1 ) {
/* @TODO this is currently System V AMD64 RTL(C) ABI only */
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
char l_gp_reg_name[4];
if ( (strcmp(i_arch, "wsm") == 0) ||
(strcmp(i_arch, "snb") == 0) ||
(strcmp(i_arch, "hsw") == 0) ) {
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_kloop ) ) {
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_kloop, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " popq %%%s\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_nloop ) ) {
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_nloop, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " popq %%%s\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_mloop ) ) {
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_mloop, l_gp_reg_name, 3 );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " popq %%%s\n", l_gp_reg_name );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
} else {
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " popq %r15\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " popq %r14\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " popq %r13\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " popq %r12\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " popq %rbx\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_b_prefetch ) ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_CALLEE_SAVE_B_PREF );
return;
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_a_prefetch ) ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_CALLEE_SAVE_A_PREF );
return;
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_c ) ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_CALLEE_SAVE_C );
return;
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_b ) ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_CALLEE_SAVE_B );
return;
}
if ( libxsmm_check_x86_gp_reg_name_callee_save( i_gp_reg_mapping->gp_reg_a ) ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_CALLEE_SAVE_A );
return;
}
/* @TODO: I don't know if this is the correct placement in the generation process */
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " retq\n" );
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
} else {
char l_new_code[1024];
int l_max_code_length = 1023;
int l_code_length = 0;
char l_gp_reg_a[4];
char l_gp_reg_b[4];
char l_gp_reg_c[4];
char l_gp_reg_pre_a[4];
char l_gp_reg_pre_b[4];
char l_gp_reg_mloop[4];
char l_gp_reg_nloop[4];
char l_gp_reg_kloop[4];
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_a, l_gp_reg_a, 3 );
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_b, l_gp_reg_b, 3 );
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_c, l_gp_reg_c, 3 );
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_a_prefetch, l_gp_reg_pre_a, 3 );
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_b_prefetch, l_gp_reg_pre_b, 3 );
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_mloop, l_gp_reg_mloop, 3 );
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_nloop, l_gp_reg_nloop, 3 );
libxsmm_get_x86_gp_reg_name( i_gp_reg_mapping->gp_reg_kloop, l_gp_reg_kloop, 3 );
if ( ( strcmp(i_prefetch, "BL2viaC") == 0 ) ||
( strcmp(i_prefetch, "curAL2_BL2viaC") == 0 ) ) {
if ( (strcmp(i_arch, "wsm") == 0) ||
(strcmp(i_arch, "snb") == 0) ||
(strcmp(i_arch, "hsw") == 0) ) {
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " : : \"m\"(B), \"m\"(A), \"m\"(C), \"m\"(B_prefetch) : \"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"xmm0\",\"xmm1\",\"xmm2\",\"xmm3\",\"xmm4\",\"xmm5\",\"xmm6\",\"xmm7\",\"xmm8\",\"xmm9\",\"xmm10\",\"xmm11\",\"xmm12\",\"xmm13\",\"xmm14\",\"xmm15\");\n", l_gp_reg_a, l_gp_reg_b, l_gp_reg_c, l_gp_reg_pre_b, l_gp_reg_mloop, l_gp_reg_nloop, l_gp_reg_kloop);
} else {
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " : : \"m\"(B), \"m\"(A), \"m\"(C), \"m\"(B_prefetch) : \"k1\",\"rax\",\"rbx\",\"rcx\",\"rdx\",\"rdi\",\"rsi\",\"r8\",\"r9\",\"r10\",\"r12\",\"r13\",\"r14\",\"r15\",\"zmm0\",\"zmm1\",\"zmm2\",\"zmm3\",\"zmm4\",\"zmm5\",\"zmm6\",\"zmm7\",\"zmm8\",\"zmm9\",\"zmm10\",\"zmm11\",\"zmm12\",\"zmm13\",\"zmm14\",\"zmm15\",\"zmm16\",\"zmm17\",\"zmm18\",\"zmm19\",\"zmm20\",\"zmm21\",\"zmm22\",\"zmm23\",\"zmm24\",\"zmm25\",\"zmm26\",\"zmm27\",\"zmm28\",\"zmm29\",\"zmm30\",\"zmm31\");\n");
}
} else if ( ( strcmp(i_prefetch, "AL2jpst") == 0 ) ||
( strcmp(i_prefetch, "AL2") == 0 ) ) {
if ( (strcmp(i_arch, "wsm") == 0) ||
(strcmp(i_arch, "snb") == 0) ||
(strcmp(i_arch, "hsw") == 0) ) {
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " : : \"m\"(B), \"m\"(A), \"m\"(C), \"m\"(A_prefetch) : \"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"xmm0\",\"xmm1\",\"xmm2\",\"xmm3\",\"xmm4\",\"xmm5\",\"xmm6\",\"xmm7\",\"xmm8\",\"xmm9\",\"xmm10\",\"xmm11\",\"xmm12\",\"xmm13\",\"xmm14\",\"xmm15\");\n", l_gp_reg_a, l_gp_reg_b, l_gp_reg_c, l_gp_reg_pre_a, l_gp_reg_mloop, l_gp_reg_nloop, l_gp_reg_kloop);
} else {
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " : : \"m\"(B), \"m\"(A), \"m\"(C), \"m\"(A_prefetch) : \"k1\",\"rax\",\"rbx\",\"rcx\",\"rdx\",\"rdi\",\"rsi\",\"r8\",\"r9\",\"r10\",\"r12\",\"r13\",\"r14\",\"r15\",\"zmm0\",\"zmm1\",\"zmm2\",\"zmm3\",\"zmm4\",\"zmm5\",\"zmm6\",\"zmm7\",\"zmm8\",\"zmm9\",\"zmm10\",\"zmm11\",\"zmm12\",\"zmm13\",\"zmm14\",\"zmm15\",\"zmm16\",\"zmm17\",\"zmm18\",\"zmm19\",\"zmm20\",\"zmm21\",\"zmm22\",\"zmm23\",\"zmm24\",\"zmm25\",\"zmm26\",\"zmm27\",\"zmm28\",\"zmm29\",\"zmm30\",\"zmm31\");\n");
}
} else if ( ( strcmp(i_prefetch, "AL2jpst_BL2viaC") == 0 ) ||
( strcmp(i_prefetch, "AL2_BL2viaC") == 0 ) ) {
if ( (strcmp(i_arch, "wsm") == 0) ||
(strcmp(i_arch, "snb") == 0) ||
(strcmp(i_arch, "hsw") == 0) ) {
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " : : \"m\"(B), \"m\"(A), \"m\"(C), \"m\"(A_prefetch), \"m\"(B_prefetch) : \"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"xmm0\",\"xmm1\",\"xmm2\",\"xmm3\",\"xmm4\",\"xmm5\",\"xmm6\",\"xmm7\",\"xmm8\",\"xmm9\",\"xmm10\",\"xmm11\",\"xmm12\",\"xmm13\",\"xmm14\",\"xmm15\");\n", l_gp_reg_a, l_gp_reg_b, l_gp_reg_c, l_gp_reg_pre_a, l_gp_reg_pre_b, l_gp_reg_mloop, l_gp_reg_nloop, l_gp_reg_kloop);
} else {
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " : : \"m\"(B), \"m\"(A), \"m\"(C), \"m\"(A_prefetch), \"m\"(B_prefetch) : \"k1\",\"rax\",\"rbx\",\"rcx\",\"rdx\",\"rdi\",\"rsi\",\"r8\",\"r9\",\"r10\",\"r12\",\"r13\",\"r14\",\"r15\",\"zmm0\",\"zmm1\",\"zmm2\",\"zmm3\",\"zmm4\",\"zmm5\",\"zmm6\",\"zmm7\",\"zmm8\",\"zmm9\",\"zmm10\",\"zmm11\",\"zmm12\",\"zmm13\",\"zmm14\",\"zmm15\",\"zmm16\",\"zmm17\",\"zmm18\",\"zmm19\",\"zmm20\",\"zmm21\",\"zmm22\",\"zmm23\",\"zmm24\",\"zmm25\",\"zmm26\",\"zmm27\",\"zmm28\",\"zmm29\",\"zmm30\",\"zmm31\");\n");
}
} else {
if ( (strcmp(i_arch, "wsm") == 0) ||
(strcmp(i_arch, "snb") == 0) ||
(strcmp(i_arch, "hsw") == 0) ) {
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " : : \"m\"(B), \"m\"(A), \"m\"(C) : \"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"%s\",\"xmm0\",\"xmm1\",\"xmm2\",\"xmm3\",\"xmm4\",\"xmm5\",\"xmm6\",\"xmm7\",\"xmm8\",\"xmm9\",\"xmm10\",\"xmm11\",\"xmm12\",\"xmm13\",\"xmm14\",\"xmm15\");\n", l_gp_reg_a, l_gp_reg_b, l_gp_reg_c, l_gp_reg_mloop, l_gp_reg_nloop, l_gp_reg_kloop);
} else {
l_code_length = libxsmm_snprintf( l_new_code, l_max_code_length, " : : \"m\"(B), \"m\"(A), \"m\"(C) : \"k1\",\"rax\",\"rbx\",\"rcx\",\"rdx\",\"rdi\",\"rsi\",\"r8\",\"r9\",\"r10\",\"r12\",\"r13\",\"r14\",\"r15\",\"zmm0\",\"zmm1\",\"zmm2\",\"zmm3\",\"zmm4\",\"zmm5\",\"zmm6\",\"zmm7\",\"zmm8\",\"zmm9\",\"zmm10\",\"zmm11\",\"zmm12\",\"zmm13\",\"zmm14\",\"zmm15\",\"zmm16\",\"zmm17\",\"zmm18\",\"zmm19\",\"zmm20\",\"zmm21\",\"zmm22\",\"zmm23\",\"zmm24\",\"zmm25\",\"zmm26\",\"zmm27\",\"zmm28\",\"zmm29\",\"zmm30\",\"zmm31\");\n");
}
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
}
LIBXSMM_API_INTERN
void libxsmm_generator_spgemm_csc_bsparse( libxsmm_generated_code* io_generated_code,
const libxsmm_gemm_descriptor* i_xgemm_desc,
const char* i_arch,
const unsigned int* i_row_idx,
const unsigned int* i_column_idx,
const double* i_values ) {
unsigned int l_n;
unsigned int l_z;
unsigned int l_column_elements;
unsigned int l_flop_count = 0;
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
LIBXSMM_UNUSED(i_values);
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " unsigned int l_m = 0;\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* reset C if beta is zero */
if (0 != (LIBXSMM_GEMM_FLAG_BETA_0 & i_xgemm_desc->flags)) { /* Beta=0 */
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " unsigned int l_n = 0;\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " for ( l_n = 0; l_n < %u; l_n++) {\n", (unsigned int)i_xgemm_desc->n);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
if ( i_xgemm_desc->m > 1 ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " #pragma simd\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " #pragma vector aligned\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
if ( LIBXSMM_GEMM_PRECISION_F64 == LIBXSMM_GETENUM_INP( i_xgemm_desc->datatype ) ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " for ( l_m = 0; l_m < %u; l_m++) { C[(l_n*%u)+l_m] = 0.0; }\n", (unsigned int)i_xgemm_desc->m, (unsigned int)i_xgemm_desc->ldc);
} else {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " for ( l_m = 0; l_m < %u; l_m++) { C[(l_n*%u)+l_m] = 0.0f; }\n", (unsigned int)i_xgemm_desc->m, (unsigned int)i_xgemm_desc->ldc);
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " }\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* determine the correct simd pragma for each architecture */
if ( ( strcmp( i_arch, "noarch" ) == 0 ) ||
( strcmp( i_arch, "wsm" ) == 0 ) ||
( strcmp( i_arch, "snb" ) == 0 ) ||
( strcmp( i_arch, "hsw" ) == 0 ) ) {
if ( i_xgemm_desc->m > 7 ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " #pragma simd vectorlength(8)\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
} else if ( i_xgemm_desc->m > 3 ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " #pragma simd vectorlength(4)\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
} else if ( i_xgemm_desc->m > 1 ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " #pragma simd vectorlength(2)\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
} else {}
if ( (i_xgemm_desc->m > 1) &&
((LIBXSMM_GEMM_FLAG_ALIGN_A & i_xgemm_desc->flags) != 0) &&
((LIBXSMM_GEMM_FLAG_ALIGN_C & i_xgemm_desc->flags) != 0) ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " #pragma vector aligned\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
} else if ( ( strcmp( i_arch, "knl" ) == 0 ) ||
( strcmp( i_arch, "skx" ) == 0 ) ||
( strcmp( i_arch, "clx" ) == 0 ) ||
( strcmp( i_arch, "cpx" ) == 0 ) ) {
if ( (i_xgemm_desc->m > 1) &&
((LIBXSMM_GEMM_FLAG_ALIGN_A & i_xgemm_desc->flags) != 0) &&
((LIBXSMM_GEMM_FLAG_ALIGN_C & i_xgemm_desc->flags) != 0) ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " #pragma simd vectorlength(32)\n #pragma vector aligned\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
} else {
LIBXSMM_HANDLE_ERROR( io_generated_code, LIBXSMM_ERR_ARCH );
return;
}
/* generate the actuel kernel */
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " for ( l_m = 0; l_m < %u; l_m++) {\n", (unsigned int)i_xgemm_desc->m);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
for ( l_n = 0; l_n < (unsigned int)i_xgemm_desc->n; l_n++ ) {
l_column_elements = i_column_idx[l_n+1] - i_column_idx[l_n];
for ( l_z = 0; l_z < l_column_elements; l_z++ ) {
/* check k such that we just use rows which actually need to be multiplied */
if ( i_row_idx[i_column_idx[l_n] + l_z] < (unsigned int)i_xgemm_desc->k ) {
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " C[%u+l_m] += A[%u+l_m] * B[%u];\n", l_n * i_xgemm_desc->ldc, i_row_idx[i_column_idx[l_n] + l_z]*i_xgemm_desc->lda, i_column_idx[l_n] + l_z);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
l_flop_count += 2;
}
}
}
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, " }\n");
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
/* add flop counter */
l_code_length = LIBXSMM_SNPRINTF(l_new_code, l_max_code_length, "\n#ifndef NDEBUG\n#ifdef _OPENMP\n#pragma omp atomic\n#endif\nlibxsmm_num_total_flops += %u;\n#endif\n", l_flop_count * (unsigned int)i_xgemm_desc->m);
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
void libxsmm_instruction_vec_compute_mem( libxsmm_generated_code* io_generated_code,
const unsigned int i_instruction_set,
const unsigned int i_vec_instr,
const unsigned int i_use_broadcast,
const unsigned int i_gp_reg_base,
const unsigned int i_gp_reg_idx,
const unsigned int i_scale,
const int i_displacement,
const char i_vector_name,
const unsigned int i_vec_reg_number_0,
const unsigned int i_vec_reg_number_1 ) {
/* @TODO add checks in debug mode */
if ( (i_instruction_set != LIBXSMM_X86_IMCI) &&
(i_instruction_set != LIBXSMM_X86_AVX512) &&
(i_use_broadcast != 0) ) {
libxsmm_handle_error( io_generated_code, LIBXSMM_ERR_NO_IMCI_AVX512_BCAST );
return;
}
if ( io_generated_code->code_type > 1 ) {
/* @TODO-GREG call encoding here */
} else {
char l_new_code[512];
int l_max_code_length = 511;
int l_code_length = 0;
char l_gp_reg_base[4];
char l_gp_reg_idx[4];
libxsmm_get_x86_gp_reg_name( i_gp_reg_base, l_gp_reg_base, 3 );
char l_instr_name[16];
libxsmm_get_x86_instr_name( i_vec_instr, l_instr_name, 15 );
char l_broadcast[8];
unsigned int l_single_precision = libxsmm_is_x86_vec_instr_single_precision( i_vec_instr );
if (l_single_precision == 0) {
libxsmm_snprintf( l_broadcast, 7, "1to8" );
} else {
libxsmm_snprintf( l_broadcast, 7, "1to16" );
}
/* build vXYZpd/ps/sd/ss instruction pure register use*/
if ( i_gp_reg_idx == LIBXSMM_X86_GP_REG_UNDEF ) {
if ( io_generated_code->code_type == 0 ) {
if (i_use_broadcast != 0) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %i(%%%%%s)%%{%s%%}, %%%%%cmm%i, %%%%%cmm%i\\n\\t\"\n", l_instr_name, i_displacement, l_gp_reg_base, l_broadcast, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1 );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %i(%%%%%s), %%%%%cmm%i, %%%%%cmm%i\\n\\t\"\n", l_instr_name, i_displacement, l_gp_reg_base, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1 );
}
} else {
if (i_use_broadcast != 0) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %i(%%%s){%s}, %%%cmm%i, %%%cmm%i\n", l_instr_name, i_displacement, l_gp_reg_base, l_broadcast, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1 );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %i(%%%s), %%%cmm%i, %%%cmm%i\n", l_instr_name, i_displacement, l_gp_reg_base, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1 );
}
}
} else {
libxsmm_get_x86_gp_reg_name( i_gp_reg_idx, l_gp_reg_idx, 3 );
if ( io_generated_code->code_type == 0 ) {
if (i_use_broadcast != 0) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %i(%%%%%s,%%%%%s,%i)%%{%s%%}, %%%%%cmm%i, %%%%%cmm%i\\n\\t\"\n", l_instr_name, i_displacement, l_gp_reg_base, l_gp_reg_idx, i_scale, l_broadcast, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1 );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " \"%s %i(%%%%%s,%%%%%s,%i), %%%%%cmm%i, %%%%%cmm%i\\n\\t\"\n", l_instr_name, i_displacement, l_gp_reg_base, l_gp_reg_idx, i_scale, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1 );
}
} else {
if (i_use_broadcast != 0) {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %i(%%%s,%%%s,%i){%s}, %%%cmm%i, %%%cmm%i\n", l_instr_name, i_displacement, l_gp_reg_base, l_gp_reg_idx, i_scale, l_broadcast, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1 );
} else {
l_code_length = libxsmm_snprintf(l_new_code, l_max_code_length, " %s %i(%%%s,%%%s,%i), %%%cmm%i, %%%cmm%i\n", l_instr_name, i_displacement, l_gp_reg_base, l_gp_reg_idx, i_scale, i_vector_name, i_vec_reg_number_0, i_vector_name, i_vec_reg_number_1 );
}
}
}
libxsmm_append_code_as_string( io_generated_code, l_new_code, l_code_length );
}
}
