Re-land r335038 "[llvm-exegesis] A mechanism to add target-specific functionality.""

Fix typo: LLVM_NATIVE_ARCH -> LLVM_EXEGESIS_NATIVE_ARCH.

llvm-svn: 335041

2 files changed, 31 insertions, 1 deletions

diff --git a/llvm/unittests/tools/llvm-exegesis/X86/CMakeLists.txt b/llvm/unittests/tools/llvm-exegesis/X86/CMakeLists.txt
index b96bdb0eec9..5a74c87d9b5 100644
--- a/llvm/unittests/tools/llvm-exegesis/X86/CMakeLists.txt
+++ b/llvm/unittests/tools/llvm-exegesis/X86/CMakeLists.txt
@@ -18,5 +18,8 @@ add_llvm_unittest(LLVMExegesisX86Tests
   AnalysisTest.cpp
   SnippetGeneratorTest.cpp
   RegisterAliasingTest.cpp
+  TargetTest.cpp
   )
-target_link_libraries(LLVMExegesisX86Tests PRIVATE LLVMExegesis)
+target_link_libraries(LLVMExegesisX86Tests PRIVATE
+  LLVMExegesis
+  LLVMExegesisX86)
diff --git a/llvm/unittests/tools/llvm-exegesis/X86/TargetTest.cpp b/llvm/unittests/tools/llvm-exegesis/X86/TargetTest.cpp
new file mode 100644
index 00000000000..683f2a05537
--- /dev/null
+++ b/llvm/unittests/tools/llvm-exegesis/X86/TargetTest.cpp
@@ -0,0 +1,27 @@
+#include "Target.h"
+
+#include <cassert>
+#include <memory>
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+namespace exegesis {
+
+void InitializeX86ExegesisTarget();
+
+namespace {
+
+using testing::NotNull;
+
+class X86TargetTest : public ::testing::Test {
+protected:
+  static void SetUpTestCase() { InitializeX86ExegesisTarget(); }
+};
+
+TEST_F(X86TargetTest, Lookup) {
+  EXPECT_THAT(ExegesisTarget::lookup("x86_64-unknown-linux"), NotNull());
+}
+
+} // namespace
+} // namespace exegesis