Revision 6f5dc6bec58bf0a6305113166bfdcfeb80af3c5f authored by Steven Johnson on 07 December 2020, 19:27:17 UTC, committed by Steven Johnson on 07 December 2020, 19:27:17 UTC
Currently, it can contain garbage after parsing
1 parent 4f554a7
CompilerLogger.cpp
#include "CompilerLogger.h"
#include <algorithm>
#include <fstream>
#include <iostream>
#include <vector>
#include "IRMutator.h"
#include "Util.h"
namespace Halide {
namespace Internal {
namespace {
// TODO: for now we are just going to ignore potential issues with
// static-initialization-order-fiasco, as CompilerLogger isn't currently used
// from any static-initialization execution scope.
std::unique_ptr<CompilerLogger> active_compiler_logger;
class ObfuscateNames : public IRMutator {
using IRMutator::visit;
std::map<std::string, std::string> remapping;
Expr visit(const Call *op) override {
std::vector<Expr> args;
for (const Expr &e : op->args) {
args.emplace_back(mutate(e));
}
std::string name = op->name;
if (op->call_type == Call::Extern ||
op->call_type == Call::ExternCPlusPlus ||
op->call_type == Call::Halide ||
op->call_type == Call::Image) {
name = remap(op->name);
}
return Call::make(op->type, name, args, op->call_type, op->func,
op->value_index, op->image, op->param);
}
Expr visit(const Let *op) override {
std::string name = remap(op->name);
Expr value = mutate(op->value);
Expr body = mutate(op->body);
return Let::make(name, std::move(value), std::move(body));
}
Expr visit(const Load *op) override {
std::string name = remap(op->name);
Expr index = mutate(op->index);
Expr predicate = mutate(op->predicate);
return Load::make(op->type, name, index, op->image, op->param,
predicate, op->alignment);
}
Expr visit(const Variable *op) override {
std::string name = remap(op->name);
return Variable::make(op->type, name, op->image, op->param, op->reduction_domain);
}
public:
ObfuscateNames() = default;
ObfuscateNames(const std::initializer_list<std::pair<const std::string, std::string>> &values)
: remapping(values) {
}
std::string remap(const std::string &var_name) {
std::string anon_name = "anon" + std::to_string(remapping.size());
auto p = remapping.insert({var_name, std::move(anon_name)});
return p.first->second;
}
};
} // namespace
std::unique_ptr<CompilerLogger> set_compiler_logger(std::unique_ptr<CompilerLogger> compiler_logger) {
std::unique_ptr<CompilerLogger> result = std::move(active_compiler_logger);
active_compiler_logger = std::move(compiler_logger);
return result;
}
CompilerLogger *get_compiler_logger() {
return active_compiler_logger.get();
}
JSONCompilerLogger::JSONCompilerLogger(
const std::string &generator_name,
const std::string &function_name,
const std::string &autoscheduler_name,
const Target &target,
const std::string &generator_args,
bool obfuscate_exprs)
: generator_name(generator_name),
function_name(function_name),
autoscheduler_name(autoscheduler_name),
target(target),
generator_args(generator_args),
obfuscate_exprs(obfuscate_exprs) {
}
void JSONCompilerLogger::record_matched_simplifier_rule(const std::string &rulename, Expr expr) {
matched_simplifier_rules[rulename].emplace_back(std::move(expr));
}
void JSONCompilerLogger::record_non_monotonic_loop_var(const std::string &loop_var, Expr expr) {
non_monotonic_loop_vars[loop_var].emplace_back(std::move(expr));
}
void JSONCompilerLogger::record_failed_to_prove(Expr failed_to_prove, Expr original_expr) {
failed_to_prove_exprs.emplace_back(failed_to_prove, original_expr);
}
void JSONCompilerLogger::record_object_code_size(uint64_t bytes) {
object_code_size += bytes;
}
void JSONCompilerLogger::record_compilation_time(Phase phase, double duration) {
compilation_time[phase] += duration;
}
void JSONCompilerLogger::obfuscate() {
{
std::map<std::string, std::vector<Expr>> n;
for (const auto &it : matched_simplifier_rules) {
std::string rule = it.first;
for (const auto &e : it.second) {
ObfuscateNames obfuscater;
n[rule].emplace_back(obfuscater.mutate(e));
}
}
matched_simplifier_rules = n;
}
{
std::vector<std::pair<Expr, Expr>> n;
for (const auto &it : failed_to_prove_exprs) {
// Note that use a separate obfuscater for each pair, so each
// shares identifiers only with each other; this makes it simpler
// to post-process output from multiple unrelated Generators
// and combine Exprs with similar shapes.
ObfuscateNames obfuscater;
auto failed_to_prove = obfuscater.mutate(it.first);
auto original_expr = obfuscater.mutate(it.second);
n.emplace_back(std::move(failed_to_prove), std::move(original_expr));
}
failed_to_prove_exprs = n;
}
}
namespace {
std::ostream &emit_eol(std::ostream &o, bool comma = true) {
o << (comma ? ",\n" : "\n");
return o;
}
std::ostream &emit_key(std::ostream &o, int indent, const std::string &key) {
std::string spaces(indent, ' ');
o << spaces << "\"" << key << "\" : ";
return o;
}
std::ostream &emit_object_key_open(std::ostream &o, int indent, const std::string &key) {
std::string spaces(indent, ' ');
o << spaces << "\"" << key << "\" : {\n";
return o;
}
std::ostream &emit_object_key_close(std::ostream &o, int indent, bool comma = true) {
std::string spaces(indent, ' ');
o << spaces << "}";
emit_eol(o, comma);
return o;
}
template<typename VALUE>
std::ostream &emit_value(std::ostream &o, const VALUE &value) {
o << value;
return o;
}
template<>
std::ostream &emit_value<std::string>(std::ostream &o, const std::string &value) {
std::string v = value;
v = replace_all(v, "\\", "\\\\");
v = replace_all(v, "\"", "\\\"");
o << "\"" << v << "\"";
return o;
}
template<typename VALUE>
std::ostream &emit_key_value(std::ostream &o, int indent, const std::string &key, const VALUE &value, bool comma = true) {
emit_key(o, indent, key);
emit_value(o, value);
emit_eol(o, comma);
return o;
}
std::ostream &emit_optional_key_value(std::ostream &o, int indent, const std::string &key, const std::string &value, bool comma = true) {
if (!value.empty()) {
return emit_key_value(o, indent, key, value, comma);
}
return o;
}
template<typename T>
std::ostream &emit_pairs(std::ostream &o, int indent, const std::string &key, const T &pairs, bool comma = true) {
std::string spaces(indent, ' ');
emit_key(o, indent, key);
o << "{\n";
int commas_to_emit = (int)pairs.size() - 1;
for (const auto &it : pairs) {
const bool comma = (commas_to_emit > 0);
emit_key_value(o, indent + 1, it.first, it.second, comma);
commas_to_emit--;
}
o << spaces << "}";
emit_eol(o, comma);
return o;
}
template<typename T>
std::ostream &emit_list(std::ostream &o, int indent, const T &list, bool comma = true) {
std::string spaces(indent, ' ');
std::string spaces_in(indent + 1, ' ');
o << spaces << "[\n";
int commas_to_emit = (int)list.size() - 1;
for (const auto &it : list) {
o << spaces_in;
emit_value(o, it);
emit_eol(o, commas_to_emit-- > 0);
}
o << spaces << "]";
emit_eol(o, comma);
return o;
}
std::string expr_to_string(const Expr &e) {
std::ostringstream s;
s << e;
return s.str();
}
std::set<std::string> exprs_to_strings(const std::vector<Expr> &exprs) {
std::set<std::string> strings;
for (const auto &e : exprs) {
strings.insert(expr_to_string(e));
}
return strings;
}
} // namespace
std::ostream &JSONCompilerLogger::emit_to_stream(std::ostream &o) {
if (obfuscate_exprs) {
obfuscate();
}
// Output in JSON form
o << "{\n";
int indent = 1;
emit_optional_key_value(o, indent, "generator_name", generator_name);
emit_optional_key_value(o, indent, "function_name", function_name);
emit_optional_key_value(o, indent, "autoscheduler_name", autoscheduler_name);
emit_optional_key_value(o, indent, "target", target == Target() ? "" : target.to_string());
emit_optional_key_value(o, indent, "generator_args", generator_args);
if (object_code_size) {
emit_key_value(o, indent, "object_code_size", object_code_size);
}
// If these are present, emit them, even if value is zero
if (compilation_time.count(Phase::HalideLowering)) {
emit_key_value(o, indent, "compilation_time_halide_lowering", compilation_time[Phase::HalideLowering]);
}
if (compilation_time.count(Phase::LLVM)) {
emit_key_value(o, indent, "compilation_time_llvm", compilation_time[Phase::LLVM]);
}
if (!matched_simplifier_rules.empty()) {
emit_object_key_open(o, indent, "matched_simplifier_rules");
int commas_to_emit = (int)matched_simplifier_rules.size() - 1;
for (const auto &it : matched_simplifier_rules) {
const auto &loop_var = it.first;
emit_key(o, indent + 1, loop_var);
emit_eol(o, false);
emit_list(o, indent + 1, exprs_to_strings(it.second), (commas_to_emit-- > 0));
}
emit_object_key_close(o, indent);
}
if (!non_monotonic_loop_vars.empty()) {
emit_object_key_open(o, indent, "non_monotonic_loop_vars");
int commas_to_emit = (int)non_monotonic_loop_vars.size() - 1;
for (const auto &it : non_monotonic_loop_vars) {
const auto &loop_var = it.first;
emit_key(o, indent + 1, loop_var);
emit_eol(o, false);
emit_list(o, indent + 1, exprs_to_strings(it.second), (commas_to_emit-- > 0));
}
emit_object_key_close(o, indent);
}
if (!failed_to_prove_exprs.empty()) {
emit_object_key_open(o, indent, "failed_to_prove");
// We'll do deduplication here, during stringification.
std::map<std::string, std::set<std::string>> sorted;
for (const auto &it : failed_to_prove_exprs) {
const auto failed_to_prove_str = expr_to_string(it.first);
const auto original_expr_str = expr_to_string(it.second);
sorted[failed_to_prove_str].insert(original_expr_str);
}
int commas_to_emit = (int)sorted.size() - 1;
for (const auto &it : sorted) {
emit_key(o, indent + 1, it.first);
emit_eol(o, false);
emit_list(o, indent + 1, it.second, (commas_to_emit-- > 0));
}
emit_object_key_close(o, indent);
}
// Emit this last as a simple way to dodge the trailing-comma nonsense
o << " \"version\": \"HalideJSONCompilerLoggerV1\"\n";
o << "}\n";
return o;
}
} // namespace Internal
} // namespace Halide
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