unitests: add some ARM TargetParser tests

The ARM TargetParser would construct invalid StringRefs.  This would cause
asserts to trigger.  Add some tests in LLVM to ensure that we dont regress on
this in the future.  Although there is a test for this in clang, this ensures
that the changes would get caught in the same repository.

llvm-svn: 262790

2 files changed, 52 insertions, 0 deletions

diff --git a/llvm/unittests/Support/CMakeLists.txt b/llvm/unittests/Support/CMakeLists.txt
index 690a2e376a3..e4e053f936b 100644
--- a/llvm/unittests/Support/CMakeLists.txt
+++ b/llvm/unittests/Support/CMakeLists.txt
@@ -38,6 +38,7 @@ add_llvm_unittest(SupportTests
   StreamingMemoryObject.cpp
   StringPool.cpp
   SwapByteOrderTest.cpp
+  TargetParserTest.cpp
   ThreadLocalTest.cpp
   ThreadPool.cpp
   TimerTest.cpp
diff --git a/llvm/unittests/Support/TargetParserTest.cpp b/llvm/unittests/Support/TargetParserTest.cpp
new file mode 100644
index 00000000000..4bdf03aa861
--- /dev/null
+++ b/llvm/unittests/Support/TargetParserTest.cpp
@@ -0,0 +1,51 @@
+//===----------- TargetParser.cpp - Target Parser -------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "gtest/gtest.h"
+#include "llvm/Support/TargetParser.h"
+
+using namespace llvm;
+
+namespace {
+TEST(TargetParserTest, ARMArchName) {
+  for (ARM::ArchKind AK = static_cast<ARM::ArchKind>(0);
+       AK <= ARM::ArchKind::AK_LAST;
+       AK = static_cast<ARM::ArchKind>(static_cast<unsigned>(AK) + 1))
+    EXPECT_TRUE(AK == ARM::AK_LAST ? ARM::getArchName(AK).empty()
+                                   : !ARM::getArchName(AK).empty());
+}
+
+TEST(TargetParserTest, ARMCPUAttr) {
+  for (ARM::ArchKind AK = static_cast<ARM::ArchKind>(0);
+       AK <= ARM::ArchKind::AK_LAST;
+       AK = static_cast<ARM::ArchKind>(static_cast<unsigned>(AK) + 1))
+    EXPECT_TRUE((AK == ARM::AK_INVALID || AK == ARM::AK_LAST)
+                    ? ARM::getCPUAttr(AK).empty()
+                    : !ARM::getCPUAttr(AK).empty());
+}
+
+TEST(TargetParserTest, ARMSubArch) {
+  for (ARM::ArchKind AK = static_cast<ARM::ArchKind>(0);
+       AK <= ARM::ArchKind::AK_LAST;
+       AK = static_cast<ARM::ArchKind>(static_cast<unsigned>(AK) + 1))
+    EXPECT_TRUE((AK == ARM::AK_INVALID || AK == ARM::AK_IWMMXT ||
+                 AK == ARM::AK_IWMMXT2 || AK == ARM::AK_LAST)
+                    ? ARM::getSubArch(AK).empty()
+                    : !ARM::getSubArch(AK).empty());
+}
+
+TEST(TargetParserTest, ARMFPUName) {
+  for (ARM::FPUKind FK = static_cast<ARM::FPUKind>(0);
+       FK <= ARM::FPUKind::FK_LAST;
+       FK = static_cast<ARM::FPUKind>(static_cast<unsigned>(FK) + 1))
+    EXPECT_TRUE(FK == ARM::FK_LAST ? ARM::getFPUName(FK).empty()
+                                   : !ARM::getFPUName(FK).empty());
+}
+}
+