crosstest/test_bitmanip_main.cpp

//===- subzero/crosstest/test_bitmanip_main.cpp - Driver for tests. -------===//
//
//                        The Subzero Code Generator
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Driver for cross testing bit manipulation intrinsics.
//
//===----------------------------------------------------------------------===//

/* crosstest.py --test=test_bitmanip.cpp --test=test_bitmanip_intrin.ll \
   --driver=test_bitmanip_main.cpp --prefix=Subzero_ --output=test_bitmanip */

#include <stdint.h>

#include <climits>
#include <iostream>

// Include test_bitmanip.h twice - once normally, and once within the
// Subzero_ namespace, corresponding to the llc and Subzero translated
// object files, respectively.
#include "test_bitmanip.h"
namespace Subzero_ {
#include "test_bitmanip.h"
}

volatile uint64_t Values[] = {
    0,                    1,                    0x7e,
    0x7f,                 0x80,                 0x81,
    0xfe,                 0xff,                 0x7ffe,
    0x7fff,               0x8000,               0x8001,
    0xfffe,               0xffff,
    0x007fffff /*Max subnormal + */,
    0x00800000 /*Min+ */, 0x7f7fffff /*Max+ */,
    0x7f800000 /*+Inf*/,  0xff800000 /*-Inf*/,
    0x7fa00000 /*SNaN*/,  0x7fc00000 /*QNaN*/,
    0x7ffffffe,           0x7fffffff,           0x80000000,
    0x80000001,           0xfffffffe,           0xffffffff,
    0x100000000ll,        0x100000001ll,
    0x000fffffffffffffll /*Max subnormal + */,
    0x0010000000000000ll /*Min+ */,
    0x7fefffffffffffffll /*Max+ */,
    0x7ff0000000000000ll /*+Inf*/,
    0xfff0000000000000ll /*-Inf*/,
    0x7ff0000000000001ll /*SNaN*/,
    0x7ff8000000000000ll /*QNaN*/,
    0x7ffffffffffffffell, 0x7fffffffffffffffll, 0x8000000000000000ll,
    0x8000000000000001ll, 0xfffffffffffffffell, 0xffffffffffffffffll };

const static size_t NumValues = sizeof(Values) / sizeof(*Values);

template <typename Type>
void testBitManip(size_t &TotalTests, size_t &Passes, size_t &Failures) {
  typedef Type (*FuncType)(Type);
  static struct {
    const char *Name;
    FuncType FuncLlc;
    FuncType FuncSz;
  } Funcs[] = {
#define X(inst)                                                             \
  {                                                                         \
    STR(inst), test_##inst, Subzero_::test_##inst                           \
  },                                                                        \
  {                                                                         \
    STR(inst) "_alloca", test_alloca_##inst, Subzero_::test_alloca_##inst   \
  },                                                                        \
  {                                                                         \
    STR(inst) "_const", test_const_##inst, Subzero_::test_const_##inst      \
  },
      BMI_OPS
#undef X
  };
  const static size_t NumFuncs = sizeof(Funcs) / sizeof(*Funcs);

  for (size_t f = 0; f < NumFuncs; ++f) {
    for (size_t i = 0; i < NumValues; ++i) {
      Type Value = static_cast<Type>(Values[i]);
      ++TotalTests;
      Type ResultSz = Funcs[f].FuncSz(Value);
      Type ResultLlc = Funcs[f].FuncLlc(Value);
      if (ResultSz == ResultLlc) {
        ++Passes;
      } else {
        ++Failures;
        std::cout << "test_" << Funcs[f].Name
                  << (CHAR_BIT * sizeof(Type)) << "("
                  << static_cast<uint64_t>(Value)
                  << "): sz=" << static_cast<uint64_t>(ResultSz)
                  << " llc=" << static_cast<uint64_t>(ResultLlc)
                  << "\n";
      }
    }
  }
}

int main(int argc, char **argv) {
  size_t TotalTests = 0;
  size_t Passes = 0;
  size_t Failures = 0;

  testBitManip<uint32_t>(TotalTests, Passes, Failures);
  testBitManip<uint64_t>(TotalTests, Passes, Failures);

  std::cout << "TotalTests=" << TotalTests << " Passes=" << Passes
            << " Failures=" << Failures << "\n";
  return Failures;
}