Revision 5b5715a2ff77729570757768063836369cff220e authored by DilumAluthgeBot on 21 April 2022, 22:45:07 UTC, committed by GitHub on 21 April 2022, 22:45:07 UTC
Co-authored-by: Dilum Aluthge <dilum@aluthge.com>
1 parent 4dfef57
precompile.c
// This file is a part of Julia. License is MIT: https://julialang.org/license
/*
precompile.c
Generating compiler output artifacts (object files, etc.)
*/
#include <stdlib.h>
#include "julia.h"
#include "julia_internal.h"
#include "julia_assert.h"
#ifdef __cplusplus
extern "C" {
#endif
JL_DLLEXPORT int jl_generating_output(void)
{
return jl_options.outputo || jl_options.outputbc || jl_options.outputunoptbc || jl_options.outputji || jl_options.outputasm;
}
static void *jl_precompile(int all);
void jl_write_compiler_output(void)
{
if (!jl_generating_output()) {
return;
}
void *native_code = NULL;
if (!jl_options.incremental)
native_code = jl_precompile(jl_options.compile_enabled == JL_OPTIONS_COMPILE_ALL);
if (!jl_module_init_order) {
jl_printf(JL_STDERR, "WARNING: --output requested, but no modules defined during run\n");
return;
}
jl_array_t *worklist = jl_module_init_order;
JL_GC_PUSH1(&worklist);
jl_module_init_order = jl_alloc_vec_any(0);
int i, l = jl_array_len(worklist);
for (i = 0; i < l; i++) {
jl_value_t *m = jl_ptrarrayref(worklist, i);
jl_value_t *f = jl_get_global((jl_module_t*)m, jl_symbol("__init__"));
if (f) {
jl_array_ptr_1d_push(jl_module_init_order, m);
int setting = jl_get_module_compile((jl_module_t*)m);
if (setting != JL_OPTIONS_COMPILE_OFF &&
setting != JL_OPTIONS_COMPILE_MIN) {
// TODO: this would be better handled if moved entirely to jl_precompile
// since it's a slightly duplication of effort
jl_value_t *tt = jl_is_type(f) ? (jl_value_t*)jl_wrap_Type(f) : jl_typeof(f);
JL_GC_PUSH1(&tt);
tt = (jl_value_t*)jl_apply_tuple_type_v(&tt, 1);
jl_compile_hint((jl_tupletype_t*)tt);
JL_GC_POP();
}
}
}
if (jl_options.incremental) {
if (jl_options.outputji)
if (jl_save_incremental(jl_options.outputji, worklist))
jl_exit(1);
if (jl_options.outputbc || jl_options.outputunoptbc)
jl_printf(JL_STDERR, "WARNING: incremental output to a .bc file is not implemented\n");
if (jl_options.outputo)
jl_printf(JL_STDERR, "WARNING: incremental output to a .o file is not implemented\n");
if (jl_options.outputasm)
jl_printf(JL_STDERR, "WARNING: incremental output to a .s file is not implemented\n");
}
else {
ios_t *s = NULL;
if (jl_options.outputo || jl_options.outputbc || jl_options.outputunoptbc || jl_options.outputasm)
s = jl_create_system_image(native_code);
if (jl_options.outputji) {
if (s == NULL) {
jl_save_system_image(jl_options.outputji);
}
else {
ios_t f;
if (ios_file(&f, jl_options.outputji, 1, 1, 1, 1) == NULL)
jl_errorf("cannot open system image file \"%s\" for writing", jl_options.outputji);
ios_write(&f, (const char*)s->buf, (size_t)s->size);
ios_close(&f);
}
}
if (jl_options.outputo || jl_options.outputbc || jl_options.outputunoptbc || jl_options.outputasm) {
assert(s);
jl_dump_native(native_code,
jl_options.outputbc,
jl_options.outputunoptbc,
jl_options.outputo,
jl_options.outputasm,
(const char*)s->buf, (size_t)s->size);
}
}
for (size_t i = 0; i < jl_current_modules.size; i += 2) {
if (jl_current_modules.table[i + 1] != HT_NOTFOUND) {
jl_printf(JL_STDERR, "\nWARNING: detected unclosed module: ");
jl_static_show(JL_STDERR, (jl_value_t*)jl_current_modules.table[i]);
jl_printf(JL_STDERR, "\n ** incremental compilation may be broken for this module **\n\n");
}
}
JL_GC_POP();
}
// f{<:Union{...}}(...) is a common pattern
// and expanding the Union may give a leaf function
static void _compile_all_tvar_union(jl_value_t *methsig)
{
if (!jl_is_unionall(methsig) && jl_is_dispatch_tupletype(methsig)) {
// usually can create a specialized version of the function,
// if the signature is already a dispatch type
if (jl_compile_hint((jl_tupletype_t*)methsig))
return;
}
int tvarslen = jl_subtype_env_size(methsig);
jl_value_t *sigbody = methsig;
jl_value_t **roots;
JL_GC_PUSHARGS(roots, 1 + 2 * tvarslen);
jl_value_t **env = roots + 1;
int *idx = (int*)alloca(sizeof(int) * tvarslen);
int i;
for (i = 0; i < tvarslen; i++) {
assert(jl_is_unionall(sigbody));
idx[i] = 0;
env[2 * i] = (jl_value_t*)((jl_unionall_t*)sigbody)->var;
env[2 * i + 1] = jl_bottom_type; // initialize the list with Union{}, since T<:Union{} is always a valid option
sigbody = ((jl_unionall_t*)sigbody)->body;
}
for (i = 0; i < tvarslen; /* incremented by inner loop */) {
jl_value_t **sig = &roots[0];
JL_TRY {
// TODO: wrap in UnionAll for each tvar in env[2*i + 1] ?
// currently doesn't matter much, since jl_compile_hint doesn't work on abstract types
*sig = (jl_value_t*)jl_instantiate_type_with(sigbody, env, tvarslen);
}
JL_CATCH {
goto getnext; // sigh, we found an invalid type signature. should we warn the user?
}
if (!jl_has_concrete_subtype(*sig))
goto getnext; // signature wouldn't be callable / is invalid -- skip it
if (jl_is_concrete_type(*sig)) {
if (jl_compile_hint((jl_tupletype_t *)*sig))
goto getnext; // success
}
getnext:
for (i = 0; i < tvarslen; i++) {
jl_tvar_t *tv = (jl_tvar_t*)env[2 * i];
if (jl_is_uniontype(tv->ub)) {
size_t l = jl_count_union_components(tv->ub);
size_t j = idx[i];
if (j == l) {
env[2 * i + 1] = jl_bottom_type;
idx[i] = 0;
}
else {
jl_value_t *ty = jl_nth_union_component(tv->ub, j);
if (!jl_is_concrete_type(ty))
ty = (jl_value_t*)jl_new_typevar(tv->name, tv->lb, ty);
env[2 * i + 1] = ty;
idx[i] = j + 1;
break;
}
}
else {
env[2 * i + 1] = (jl_value_t*)tv;
}
}
}
JL_GC_POP();
}
// f(::Union{...}, ...) is a common pattern
// and expanding the Union may give a leaf function
static void _compile_all_union(jl_value_t *sig)
{
jl_tupletype_t *sigbody = (jl_tupletype_t*)jl_unwrap_unionall(sig);
size_t count_unions = 0;
size_t i, l = jl_svec_len(sigbody->parameters);
jl_svec_t *p = NULL;
jl_value_t *methsig = NULL;
for (i = 0; i < l; i++) {
jl_value_t *ty = jl_svecref(sigbody->parameters, i);
if (jl_is_uniontype(ty))
++count_unions;
else if (ty == jl_bottom_type)
return; // why does this method exist?
else if (jl_is_datatype(ty) && !jl_has_free_typevars(ty) &&
((!jl_is_kind(ty) && ((jl_datatype_t*)ty)->isconcretetype) ||
((jl_datatype_t*)ty)->name == jl_type_typename))
return; // no amount of union splitting will make this a leaftype signature
}
if (count_unions == 0 || count_unions >= 6) {
_compile_all_tvar_union(sig);
return;
}
int *idx = (int*)alloca(sizeof(int) * count_unions);
for (i = 0; i < count_unions; i++) {
idx[i] = 0;
}
JL_GC_PUSH2(&p, &methsig);
int idx_ctr = 0, incr = 0;
while (!incr) {
p = jl_alloc_svec_uninit(l);
for (i = 0, idx_ctr = 0, incr = 1; i < l; i++) {
jl_value_t *ty = jl_svecref(sigbody->parameters, i);
if (jl_is_uniontype(ty)) {
assert(idx_ctr < count_unions);
size_t l = jl_count_union_components(ty);
size_t j = idx[idx_ctr];
jl_svecset(p, i, jl_nth_union_component(ty, j));
++j;
if (incr) {
if (j == l) {
idx[idx_ctr] = 0;
}
else {
idx[idx_ctr] = j;
incr = 0;
}
}
++idx_ctr;
}
else {
jl_svecset(p, i, ty);
}
}
methsig = (jl_value_t*)jl_apply_tuple_type(p);
methsig = jl_rewrap_unionall(methsig, sig);
_compile_all_tvar_union(methsig);
}
JL_GC_POP();
}
static void _compile_all_deq(jl_array_t *found)
{
int found_i, found_l = jl_array_len(found);
jl_printf(JL_STDERR, "found %d uncompiled methods for compile-all\n", (int)found_l);
jl_method_instance_t *mi = NULL;
jl_value_t *src = NULL;
JL_GC_PUSH2(&mi, &src);
for (found_i = 0; found_i < found_l; found_i++) {
if (found_i % (1 + found_l / 300) == 0 || found_i == found_l - 1) // show 300 progress steps, to show progress without overwhelming log files
jl_printf(JL_STDERR, " %d / %d\r", found_i + 1, found_l);
jl_typemap_entry_t *ml = (jl_typemap_entry_t*)jl_array_ptr_ref(found, found_i);
jl_method_t *m = ml->func.method;
if (m->source == NULL) // TODO: generic implementations of generated functions
continue;
mi = jl_get_unspecialized(m);
assert(mi == jl_atomic_load_relaxed(&m->unspecialized)); // make sure we didn't get tricked by a generated function, since we can't handle those
jl_code_instance_t *ucache = jl_get_method_inferred(mi, (jl_value_t*)jl_any_type, 1, ~(size_t)0);
if (jl_atomic_load_relaxed(&ucache->invoke) != NULL)
continue;
src = m->source;
assert(src);
// TODO: we could now enable storing inferred function pointers in the `unspecialized` cache
//src = jl_type_infer(mi, jl_atomic_load_acquire(&jl_world_counter), 1);
//if (jl_atomic_load_relaxed(&ucache->invoke) != NULL)
// continue;
// first try to create leaf signatures from the signature declaration and compile those
_compile_all_union((jl_value_t*)ml->sig);
// then also compile the generic fallback
jl_generate_fptr_for_unspecialized(ucache);
}
JL_GC_POP();
jl_printf(JL_STDERR, "\n");
}
static int compile_all_enq__(jl_typemap_entry_t *ml, void *env)
{
jl_array_t *found = (jl_array_t*)env;
// method definition -- compile template field
jl_method_t *m = ml->func.method;
if (m->source) {
// found a method to compile
jl_array_ptr_1d_push(found, (jl_value_t*)ml);
}
return 1;
}
static int compile_all_enq_(jl_methtable_t *mt, void *env)
{
jl_typemap_visitor(jl_atomic_load_relaxed(&mt->defs), compile_all_enq__, env);
return 1;
}
static void jl_compile_all_defs(void)
{
// this "found" array will contain
// TypeMapEntries for Methods and MethodInstances that need to be compiled
jl_array_t *m = jl_alloc_vec_any(0);
JL_GC_PUSH1(&m);
int _changes = -1;
int attempts = 0;
while (1) {
jl_foreach_reachable_mtable(compile_all_enq_, m);
size_t changes = jl_array_len(m);
if (!changes)
break;
if (changes == _changes) {
if (++attempts > 5) {
jl_printf(JL_STDERR, "unable to compile %d methods for compile-all\n", (int)changes);
break;
}
} else {
attempts = 0;
}
_compile_all_deq(m);
jl_array_del_end(m, changes);
_changes = changes;
}
JL_GC_POP();
}
static int precompile_enq_specialization_(jl_method_instance_t *mi, void *closure)
{
assert(jl_is_method_instance(mi));
jl_code_instance_t *codeinst = jl_atomic_load_relaxed(&mi->cache);
while (codeinst) {
int do_compile = 0;
if (jl_atomic_load_relaxed(&codeinst->invoke) != jl_fptr_const_return) {
if (codeinst->inferred && codeinst->inferred != jl_nothing &&
jl_ir_flag_inferred((jl_array_t*)codeinst->inferred) &&
!jl_ir_flag_inlineable((jl_array_t*)codeinst->inferred)) {
do_compile = 1;
}
else if (jl_atomic_load_relaxed(&codeinst->invoke) != NULL || jl_atomic_load_relaxed(&codeinst->precompile)) {
do_compile = 1;
}
}
if (do_compile) {
jl_array_ptr_1d_push((jl_array_t*)closure, (jl_value_t*)mi);
return 1;
}
codeinst = jl_atomic_load_relaxed(&codeinst->next);
}
return 1;
}
static int precompile_enq_all_specializations__(jl_typemap_entry_t *def, void *closure)
{
jl_method_t *m = def->func.method;
if ((m->name == jl_symbol("__init__") || m->ccallable) && jl_is_dispatch_tupletype(m->sig)) {
// ensure `__init__()` and @ccallables get strongly-hinted, specialized, and compiled
jl_method_instance_t *mi = jl_specializations_get_linfo(m, m->sig, jl_emptysvec);
jl_array_ptr_1d_push((jl_array_t*)closure, (jl_value_t*)mi);
}
else {
jl_svec_t *specializations = jl_atomic_load_relaxed(&def->func.method->specializations);
size_t i, l = jl_svec_len(specializations);
for (i = 0; i < l; i++) {
jl_value_t *mi = jl_svecref(specializations, i);
if (mi != jl_nothing)
precompile_enq_specialization_((jl_method_instance_t*)mi, closure);
}
}
if (m->ccallable)
jl_array_ptr_1d_push((jl_array_t*)closure, (jl_value_t*)m->ccallable);
return 1;
}
static int precompile_enq_all_specializations_(jl_methtable_t *mt, void *env)
{
return jl_typemap_visitor(jl_atomic_load_relaxed(&mt->defs), precompile_enq_all_specializations__, env);
}
static void *jl_precompile(int all)
{
if (all)
jl_compile_all_defs();
// this "found" array will contain function
// type signatures that were inferred but haven't been compiled
jl_array_t *m = jl_alloc_vec_any(0);
jl_array_t *m2 = NULL;
jl_method_instance_t *mi = NULL;
JL_GC_PUSH3(&m, &m2, &mi);
jl_foreach_reachable_mtable(precompile_enq_all_specializations_, m);
m2 = jl_alloc_vec_any(0);
for (size_t i = 0; i < jl_array_len(m); i++) {
jl_value_t *item = jl_array_ptr_ref(m, i);
if (jl_is_method_instance(item)) {
mi = (jl_method_instance_t*)item;
size_t min_world = 0;
size_t max_world = ~(size_t)0;
if (!jl_isa_compileable_sig((jl_tupletype_t*)mi->specTypes, mi->def.method))
mi = jl_get_specialization1((jl_tupletype_t*)mi->specTypes, jl_atomic_load_acquire(&jl_world_counter), &min_world, &max_world, 0);
if (mi)
jl_array_ptr_1d_push(m2, (jl_value_t*)mi);
}
else {
assert(jl_is_simplevector(item));
assert(jl_svec_len(item) == 2);
jl_array_ptr_1d_push(m2, item);
}
}
m = NULL;
void *native_code = jl_create_native(m2, NULL, NULL, 0);
JL_GC_POP();
return native_code;
}
#ifdef __cplusplus
}
#endif
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