clang/unittests/CodeGen/CheckTargetFeaturesTest.cpp

   1 #include "../lib/CodeGen/CodeGenFunction.h"
   2 #include "gtest/gtest.h"
   3
   4 using namespace llvm;
   5
   6 // These tests are to Check whether CodeGen::TargetFeatures works correctly.
   7 TEST(CheckTargetFeaturesTest, checkBuiltinFeatures) {
   8   auto doCheck = [](StringRef BuiltinFeatures, StringRef FuncFeatures) {
   9     SmallVector<StringRef, 1> Features;
  10     FuncFeatures.split(Features, ',');
  11     StringMap<bool> SM;
  12     for (StringRef F : Features)
  13       SM.insert(std::make_pair(F, true));
  14     clang::CodeGen::TargetFeatures TF(SM);
  15     return TF.hasRequiredFeatures(BuiltinFeatures);
  16   };
  17   // Make sure the basic function ',' and '|' works correctly
  18   ASSERT_FALSE(doCheck("A,B,C,D", "A"));
  19   ASSERT_TRUE(doCheck("A,B,C,D", "A,B,C,D"));
  20   ASSERT_TRUE(doCheck("A|B", "A"));
  21   ASSERT_FALSE(doCheck("A|B", "C"));
  22
  23   // Make sure the ',' has higher priority.
  24   ASSERT_TRUE(doCheck("A|B,C|D", "A"));
  25
  26   // Make sure the parentheses do change the priority of '|'.
  27   ASSERT_FALSE(doCheck("(A|B),(C|D)", "A"));
  28   ASSERT_TRUE(doCheck("(A|B),(C|D)", "A,C"));
  29
  30   // Make sure the combination in parentheses works correctly.
  31   ASSERT_FALSE(doCheck("(A,B|C),D", "A,C"));
  32   ASSERT_FALSE(doCheck("(A,B|C),D", "A,D"));
  33   ASSERT_TRUE(doCheck("(A,B|C),D", "C,D"));
  34   ASSERT_TRUE(doCheck("(A,B|C),D", "A,B,D"));
  35
  36   // Make sure nested parentheses works correctly.
  37   ASSERT_FALSE(doCheck("(A,(B|C)),D", "C,D"));
  38   ASSERT_TRUE(doCheck("(A,(B|C)),D", "A,C,D"));
  39 }