Merged asmjit:next branch (#149)

test/asmjit_bench_x86.cpp

@@ -0,0 +1,146 @@
+// [AsmJit]
+// Complete x86/x64 JIT and Remote Assembler for C++.
+//
+// [License]
+// Zlib - See LICENSE.md file in the package.
+
+// [Dependencies]
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "./asmjit.h"
+#include "./asmjit_test_misc.h"
+#include "./asmjit_test_opcode.h"
+
+using namespace asmjit;
+
+// ============================================================================
+// [Configuration]
+// ============================================================================
+
+static const uint32_t kNumRepeats = 10;
+static const uint32_t kNumIterations = 5000;
+
+// ============================================================================
+// [Performance]
+// ============================================================================
+
+struct Performance {
+  static inline uint32_t now() {
+    return OSUtils::getTickCount();
+  }
+
+  inline void reset() {
+    tick = 0;
+    best = 0xFFFFFFFF;
+  }
+
+  inline uint32_t start() { return (tick = now()); }
+  inline uint32_t diff() const { return now() - tick; }
+
+  inline uint32_t end() {
+    tick = diff();
+    if (best > tick)
+      best = tick;
+    return tick;
+  }
+
+  uint32_t tick;
+  uint32_t best;
+};
+
+static double mbps(uint32_t time, size_t outputSize) {
+  if (!time) return 0.0;
+
+  double bytesTotal = static_cast<double>(outputSize);
+  return (bytesTotal * 1000) / (static_cast<double>(time) * 1024 * 1024);
+}
+
+// ============================================================================
+// [Main]
+// ============================================================================
+
+#if defined(ASMJIT_BUILD_X86)
+static void benchX86(uint32_t archType) {
+  CodeHolder code;
+  Performance perf;
+
+  X86Assembler a;
+  X86Compiler cc;
+
+  uint32_t r, i;
+  const char* archName = archType == ArchInfo::kTypeX86 ? "X86" : "X64";
+
+  // --------------------------------------------------------------------------
+  // [Bench - Assembler]
+  // --------------------------------------------------------------------------
+
+  size_t asmOutputSize = 0;
+  size_t cmpOutputSize = 0;
+
+  perf.reset();
+  for (r = 0; r < kNumRepeats; r++) {
+    asmOutputSize = 0;
+    perf.start();
+    for (i = 0; i < kNumIterations; i++) {
+      code.init(CodeInfo(archType));
+      code.attach(&a);
+
+      asmtest::generateOpcodes(a);
+      asmOutputSize += code.getCodeSize();
+
+      code.reset(false); // Detaches `a`.
+    }
+    perf.end();
+  }
+
+  printf("%-12s (%s) | Time: %-6u [ms] | Speed: %7.3f [MB/s]\n",
+    "X86Assembler", archName, perf.best, mbps(perf.best, asmOutputSize));
+
+  // --------------------------------------------------------------------------
+  // [Bench - CodeBuilder]
+  // --------------------------------------------------------------------------
+
+  // TODO:
+
+  // --------------------------------------------------------------------------
+  // [Bench - CodeCompiler]
+  // --------------------------------------------------------------------------
+
+  perf.reset();
+  for (r = 0; r < kNumRepeats; r++) {
+    cmpOutputSize = 0;
+    perf.start();
+    for (i = 0; i < kNumIterations; i++) {
+      // NOTE: Since we don't have JitRuntime we don't know anything about
+      // function calling conventions, which is required by generateAlphaBlend.
+      // So we must setup this manually.
+      CodeInfo ci(archType);
+      ci.setCdeclCallConv(archType == ArchInfo::kTypeX86 ? CallConv::kIdX86CDecl : CallConv::kIdX86SysV64);
+
+      code.init(ci);
+      code.attach(&cc);
+
+      asmtest::generateAlphaBlend(cc);
+      cc.finalize();
+      cmpOutputSize += code.getCodeSize();
+
+      code.reset(false); // Detaches `cc`.
+    }
+    perf.end();
+  }
+
+  printf("%-12s (%s) | Time: %-6u [ms] | Speed: %7.3f [MB/s]\n",
+    "X86Compiler", archName, perf.best, mbps(perf.best, cmpOutputSize));
+}
+#endif
+
+int main(int argc, char* argv[]) {
+#if defined(ASMJIT_BUILD_X86)
+  benchX86(ArchInfo::kTypeX86);
+  benchX86(ArchInfo::kTypeX64);
+#endif // ASMJIT_BUILD_X86
+
+  return 0;
+}