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#include "clang/Basic/Builtins.h"
#include "gtest/gtest.h"
using namespace llvm;
// These tests are to Check whether CodeGen::TargetFeatures works correctly.
TEST(CheckTargetFeaturesTest, checkBuiltinFeatures) {
auto doCheck = [](StringRef BuiltinFeatures, StringRef FuncFeatures) {
SmallVector<StringRef, 1> Features;
FuncFeatures.split(Features, ',');
StringMap<bool> SM;
for (StringRef F : Features)
SM.insert(std::make_pair(F, true));
return clang::Builtin::evaluateRequiredTargetFeatures(BuiltinFeatures, SM);
};
// Make sure the basic function ',' and '|' works correctly
ASSERT_FALSE(doCheck("A,B,C,D", "A"));
ASSERT_TRUE(doCheck("A,B,C,D", "A,B,C,D"));
ASSERT_TRUE(doCheck("A|B", "A"));
ASSERT_FALSE(doCheck("A|B", "C"));
// Make sure the ',' has higher priority.
ASSERT_TRUE(doCheck("A|B,C|D", "A"));
// Make sure the parentheses do change the priority of '|'.
ASSERT_FALSE(doCheck("(A|B),(C|D)", "A"));
ASSERT_TRUE(doCheck("(A|B),(C|D)", "A,C"));
// Make sure the combination in parentheses works correctly.
ASSERT_FALSE(doCheck("(A,B|C),D", "A,C"));
ASSERT_FALSE(doCheck("(A,B|C),D", "A,D"));
ASSERT_TRUE(doCheck("(A,B|C),D", "C,D"));
ASSERT_TRUE(doCheck("(A,B|C),D", "A,B,D"));
// Make sure nested parentheses works correctly.
ASSERT_FALSE(doCheck("(A,(B|C)),D", "C,D"));
ASSERT_TRUE(doCheck("(A,(B|C)),D", "A,C,D"));
}
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