1//===- subzero/crosstest/test_strengthreduce_main.cpp - Driver for tests --===//
2//
3//                        The Subzero Code Generator
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Driver for crosstesting arithmetic strength-reducing optimizations.
11//
12//===----------------------------------------------------------------------===//
13
14/* crosstest.py --test=test_strengthreduce.cpp \
15   --driver=test_strengthreduce_main.cpp \
16   --prefix=Subzero_ --clang-opt=0 --output=test_strengthreduce */
17
18#include <iostream>
19
20// Include test_strengthreduce.h twice - once normally, and once
21// within the Subzero_ namespace, corresponding to the llc and Subzero
22// translated object files, respectively.
23#include "test_strengthreduce.h"
24namespace Subzero_ {
25#include "test_strengthreduce.h"
26}
27
28int main(int argc, char *argv[]) {
29  size_t TotalTests = 0;
30  size_t Passes = 0;
31  size_t Failures = 0;
32  static int32_t Values[] = {-100, -50, 0, 1, 8, 123, 0x33333333, 0x77777777};
33  for (size_t i = 0; i < sizeof(Values) / sizeof(*Values); ++i) {
34    int32_t SVal = Values[i];
35    int32_t ResultLlcS, ResultSzS;
36    uint32_t UVal = (uint32_t)Values[i];
37    int32_t ResultLlcU, ResultSzU;
38
39#define X(constant, suffix)                                                    \
40  ResultLlcS = multiplyByConst##suffix(UVal);                                  \
41  ResultSzS = Subzero_::multiplyByConst##suffix(UVal);                         \
42  if (ResultLlcS == ResultSzS) {                                               \
43    ++Passes;                                                                  \
44  } else {                                                                     \
45    ++Failures;                                                                \
46    std::cout << "multiplyByConstS" STR(suffix) "(" << SVal                    \
47              << "): sz=" << ResultSzS << " llc=" << ResultLlcS << "\n";       \
48  }                                                                            \
49  ResultLlcU = multiplyByConst##suffix(UVal);                                  \
50  ResultSzU = Subzero_::multiplyByConst##suffix(UVal);                         \
51  if (ResultLlcU == ResultSzU) {                                               \
52    ++Passes;                                                                  \
53  } else {                                                                     \
54    ++Failures;                                                                \
55    std::cout << "multiplyByConstU" STR(suffix) "(" << UVal                    \
56              << "): sz=" << ResultSzU << " llc=" << ResultLlcU << "\n";       \
57  }
58    CONST_TABLE
59#undef X
60  }
61
62  std::cout << "TotalTests=" << TotalTests << " Passes=" << Passes
63            << " Failures=" << Failures << "\n";
64  return Failures;
65}
66