1 files changed, 155 insertions, 0 deletions
diff --git a/gnu/llvm/unittests/AsmParser/AsmParserTest.cpp b/gnu/llvm/unittests/AsmParser/AsmParserTest.cpp
new file mode 100644
index 00000000000..4189310fda2
--- /dev/null
+++ b/gnu/llvm/unittests/AsmParser/AsmParserTest.cpp
@@ -0,0 +1,155 @@
+//===- llvm/unittest/AsmParser/AsmParserTest.cpp - asm parser unittests ---===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/AsmParser/Parser.h"
+#include "llvm/AsmParser/SlotMapping.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Support/SourceMgr.h"
+#include "gtest/gtest.h"
+
+using namespace llvm;
+
+namespace {
+
+TEST(AsmParserTest, NullTerminatedInput) {
+  LLVMContext &Ctx = getGlobalContext();
+  StringRef Source = "; Empty module \n";
+  SMDiagnostic Error;
+  auto Mod = parseAssemblyString(Source, Error, Ctx);
+
+  EXPECT_TRUE(Mod != nullptr);
+  EXPECT_TRUE(Error.getMessage().empty());
+}
+
+#ifdef GTEST_HAS_DEATH_TEST
+#ifndef NDEBUG
+
+TEST(AsmParserTest, NonNullTerminatedInput) {
+  LLVMContext &Ctx = getGlobalContext();
+  StringRef Source = "; Empty module \n\1\2";
+  SMDiagnostic Error;
+  std::unique_ptr<Module> Mod;
+  EXPECT_DEATH(Mod = parseAssemblyString(Source.substr(0, Source.size() - 2),
+                                         Error, Ctx),
+               "Buffer is not null terminated!");
+}
+
+#endif
+#endif
+
+TEST(AsmParserTest, SlotMappingTest) {
+  LLVMContext &Ctx = getGlobalContext();
+  StringRef Source = "@0 = global i32 0\n !0 = !{}\n !42 = !{i32 42}";
+  SMDiagnostic Error;
+  SlotMapping Mapping;
+  auto Mod = parseAssemblyString(Source, Error, Ctx, &Mapping);
+
+  EXPECT_TRUE(Mod != nullptr);
+  EXPECT_TRUE(Error.getMessage().empty());
+
+  ASSERT_EQ(Mapping.GlobalValues.size(), 1u);
+  EXPECT_TRUE(isa<GlobalVariable>(Mapping.GlobalValues[0]));
+
+  EXPECT_EQ(Mapping.MetadataNodes.size(), 2u);
+  EXPECT_EQ(Mapping.MetadataNodes.count(0), 1u);
+  EXPECT_EQ(Mapping.MetadataNodes.count(42), 1u);
+  EXPECT_EQ(Mapping.MetadataNodes.count(1), 0u);
+}
+
+TEST(AsmParserTest, TypeAndConstantValueParsing) {
+  LLVMContext &Ctx = getGlobalContext();
+  SMDiagnostic Error;
+  StringRef Source = "define void @test() {\n  entry:\n  ret void\n}";
+  auto Mod = parseAssemblyString(Source, Error, Ctx);
+  ASSERT_TRUE(Mod != nullptr);
+  auto &M = *Mod;
+
+  const Value *V;
+  V = parseConstantValue("double 3.5", Error, M);
+  ASSERT_TRUE(V);
+  EXPECT_TRUE(V->getType()->isDoubleTy());
+  ASSERT_TRUE(isa<ConstantFP>(V));
+  EXPECT_TRUE(cast<ConstantFP>(V)->isExactlyValue(3.5));
+
+  V = parseConstantValue("i32 42", Error, M);
+  ASSERT_TRUE(V);
+  EXPECT_TRUE(V->getType()->isIntegerTy());
+  ASSERT_TRUE(isa<ConstantInt>(V));
+  EXPECT_TRUE(cast<ConstantInt>(V)->equalsInt(42));
+
+  V = parseConstantValue("<4 x i32> <i32 0, i32 1, i32 2, i32 3>", Error, M);
+  ASSERT_TRUE(V);
+  EXPECT_TRUE(V->getType()->isVectorTy());
+  ASSERT_TRUE(isa<ConstantDataVector>(V));
+
+  V = parseConstantValue("i32 add (i32 1, i32 2)", Error, M);
+  ASSERT_TRUE(V);
+  ASSERT_TRUE(isa<ConstantInt>(V));
+
+  V = parseConstantValue("i8* blockaddress(@test, %entry)", Error, M);
+  ASSERT_TRUE(V);
+  ASSERT_TRUE(isa<BlockAddress>(V));
+
+  V = parseConstantValue("i8** undef", Error, M);
+  ASSERT_TRUE(V);
+  ASSERT_TRUE(isa<UndefValue>(V));
+
+  EXPECT_FALSE(parseConstantValue("duble 3.25", Error, M));
+  EXPECT_EQ(Error.getMessage(), "expected type");
+
+  EXPECT_FALSE(parseConstantValue("i32 3.25", Error, M));
+  EXPECT_EQ(Error.getMessage(), "floating point constant invalid for type");
+
+  EXPECT_FALSE(parseConstantValue("i32* @foo", Error, M));
+  EXPECT_EQ(Error.getMessage(), "expected a constant value");
+
+  EXPECT_FALSE(parseConstantValue("i32 3, ", Error, M));
+  EXPECT_EQ(Error.getMessage(), "expected end of string");
+}
+
+TEST(AsmParserTest, TypeAndConstantValueWithSlotMappingParsing) {
+  LLVMContext &Ctx = getGlobalContext();
+  SMDiagnostic Error;
+  StringRef Source =
+      "%st = type { i32, i32 }\n"
+      "@v = common global [50 x %st] zeroinitializer, align 16\n"
+      "%0 = type { i32, i32, i32, i32 }\n"
+      "@g = common global [50 x %0] zeroinitializer, align 16\n"
+      "define void @marker4(i64 %d) {\n"
+      "entry:\n"
+      "  %conv = trunc i64 %d to i32\n"
+      "  store i32 %conv, i32* getelementptr inbounds "
+      "    ([50 x %st], [50 x %st]* @v, i64 0, i64 0, i32 0), align 16\n"
+      "  store i32 %conv, i32* getelementptr inbounds "
+      "    ([50 x %0], [50 x %0]* @g, i64 0, i64 0, i32 0), align 16\n"
+      "  ret void\n"
+      "}";
+  SlotMapping Mapping;
+  auto Mod = parseAssemblyString(Source, Error, Ctx, &Mapping);
+  ASSERT_TRUE(Mod != nullptr);
+  auto &M = *Mod;
+
+  const Value *V;
+  V = parseConstantValue("i32* getelementptr inbounds ([50 x %st], [50 x %st]* "
+                         "@v, i64 0, i64 0, i32 0)",
+                         Error, M, &Mapping);
+  ASSERT_TRUE(V);
+  ASSERT_TRUE(isa<ConstantExpr>(V));
+
+  V = parseConstantValue("i32* getelementptr inbounds ([50 x %0], [50 x %0]* "
+                         "@g, i64 0, i64 0, i32 0)",
+                         Error, M, &Mapping);
+  ASSERT_TRUE(V);
+  ASSERT_TRUE(isa<ConstantExpr>(V));
+}
+
+} // end anonymous namespace