1 #include "clang/Basic/Builtins.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     return clang::Builtin::evaluateRequiredTargetFeatures(BuiltinFeatures, SM);
15   };
16   // Make sure the basic function ',' and '|' works correctly
17   ASSERT_FALSE(doCheck("A,B,C,D", "A"));
18   ASSERT_TRUE(doCheck("A,B,C,D", "A,B,C,D"));
19   ASSERT_TRUE(doCheck("A|B", "A"));
20   ASSERT_FALSE(doCheck("A|B", "C"));
21 
22   // Make sure the ',' has higher priority.
23   ASSERT_TRUE(doCheck("A|B,C|D", "A"));
24 
25   // Make sure the parentheses do change the priority of '|'.
26   ASSERT_FALSE(doCheck("(A|B),(C|D)", "A"));
27   ASSERT_TRUE(doCheck("(A|B),(C|D)", "A,C"));
28 
29   // Make sure the combination in parentheses works correctly.
30   ASSERT_FALSE(doCheck("(A,B|C),D", "A,C"));
31   ASSERT_FALSE(doCheck("(A,B|C),D", "A,D"));
32   ASSERT_TRUE(doCheck("(A,B|C),D", "C,D"));
33   ASSERT_TRUE(doCheck("(A,B|C),D", "A,B,D"));
34 
35   // Make sure nested parentheses works correctly.
36   ASSERT_FALSE(doCheck("(A,(B|C)),D", "C,D"));
37   ASSERT_TRUE(doCheck("(A,(B|C)),D", "A,C,D"));
38 }
39