iw6-mod/deps/asmjit/test/asmjit_test_perf.h
2024-02-27 01:34:37 -05:00

115 lines
2.9 KiB
C++

// This file is part of AsmJit project <https://asmjit.com>
//
// See asmjit.h or LICENSE.md for license and copyright information
// SPDX-License-Identifier: Zlib
#ifndef ASMJIT_TEST_PERF_H_INCLUDED
#define ASMJIT_TEST_PERF_H_INCLUDED
#include <asmjit/core.h>
#include "asmjitutils.h"
#include "performancetimer.h"
namespace asmjit_perf_utils {
class TestErrorHandler : public asmjit::ErrorHandler {
void handleError(asmjit::Error err, const char* message, asmjit::BaseEmitter* origin) {
(void)err;
(void)origin;
printf("ERROR: %s\n", message);
abort();
}
};
#ifndef ASMJIT_NO_BUILDER
template<typename BuilderT, typename FuncT>
static uint32_t calculateInstructionCount(asmjit::CodeHolder& code, asmjit::Arch arch, const FuncT& func) noexcept {
BuilderT builder;
TestErrorHandler eh;
asmjit::Environment env(arch);
code.init(env);
code.setErrorHandler(&eh);
code.attach(&builder);
func(builder);
uint32_t count = 0;
asmjit::BaseNode* node = builder.firstNode();
while (node) {
count += uint32_t(node->isInst());
node = node->next();
}
code.reset();
return count;
}
#endif
static inline double calculateMBPS(double duration, uint64_t outputSize) noexcept {
if (duration == 0)
return 0.0;
double bytesTotal = double(outputSize);
return (bytesTotal * 1000) / (duration * 1024 * 1024);
}
static inline double calculateMIPS(double duration, uint64_t instCount) noexcept {
if (duration == 0)
return 0.0;
return double(instCount) * 1000.0 / (duration * 1e6);
}
template<typename EmitterT, typename FuncT>
static void bench(asmjit::CodeHolder& code, asmjit::Arch arch, uint32_t numIterations, const char* testName, uint32_t instCount, const FuncT& func) noexcept {
EmitterT emitter;
TestErrorHandler eh;
const char* archName = asmjitArchAsString(arch);
const char* emitterName =
emitter.isAssembler() ? "Assembler" :
emitter.isCompiler() ? "Compiler" :
emitter.isBuilder() ? "Builder" : "Unknown";
uint64_t codeSize = 0;
asmjit::Environment env(arch);
PerformanceTimer timer;
double duration = std::numeric_limits<double>::infinity();
for (uint32_t r = 0; r < numIterations; r++) {
codeSize = 0;
code.init(env);
code.setErrorHandler(&eh);
code.attach(&emitter);
timer.start();
func(emitter);
timer.stop();
codeSize += code.codeSize();
code.reset();
duration = asmjit::Support::min(duration, timer.duration());
}
printf(" [%s] %-9s %-16s | CodeSize:%5llu [B] | Time:%8.4f [ms]", archName, emitterName, testName, (unsigned long long)codeSize, duration);
if (codeSize) {
printf(" | Speed:%7.1f [MiB/s]", calculateMBPS(duration, codeSize));
}
else {
printf(" | Speed: N/A ");
}
if (instCount) {
printf(", %8.1f [MInst/s]", calculateMIPS(duration, instCount));
}
printf("\n");
}
} // {asmjit_perf_utils}
#endif // ASMJIT_TEST_PERF_H_INCLUDED