Imported Upstream version 5.18.0.225

Former-commit-id: 10196d987d5fc5564b9d3b33b1fdf13190f4d0b5

external/llvm/unittests/AsmParser/AsmParserTest.cpp

@@ -0,0 +1,418 @@
+//===- 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;
+  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;
+  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;
+  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;
+  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;
+  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));
+}
+
+TEST(AsmParserTest, TypeWithSlotMappingParsing) {
+  LLVMContext Ctx;
+  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;
+
+  // Check we properly parse integer types.
+  Type *Ty;
+  Ty = parseType("i32", Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isIntegerTy());
+  ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+
+  // Check we properly parse integer types with exotic size.
+  Ty = parseType("i13", Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isIntegerTy());
+  ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 13);
+
+  // Check we properly parse floating point types.
+  Ty = parseType("float", Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isFloatTy());
+
+  Ty = parseType("double", Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isDoubleTy());
+
+  // Check we properly parse struct types.
+  // Named struct.
+  Ty = parseType("%st", Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isStructTy());
+
+  // Check the details of the struct.
+  StructType *ST = cast<StructType>(Ty);
+  ASSERT_TRUE(ST->getNumElements() == 2);
+  for (unsigned i = 0, e = ST->getNumElements(); i != e; ++i) {
+    Ty = ST->getElementType(i);
+    ASSERT_TRUE(Ty->isIntegerTy());
+    ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+  }
+
+  // Anonymous struct.
+  Ty = parseType("%0", Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isStructTy());
+
+  // Check the details of the struct.
+  ST = cast<StructType>(Ty);
+  ASSERT_TRUE(ST->getNumElements() == 4);
+  for (unsigned i = 0, e = ST->getNumElements(); i != e; ++i) {
+    Ty = ST->getElementType(i);
+    ASSERT_TRUE(Ty->isIntegerTy());
+    ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+  }
+
+  // Check we properly parse vector types.
+  Ty = parseType("<5 x i32>", Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isVectorTy());
+
+  // Check the details of the vector.
+  VectorType *VT = cast<VectorType>(Ty);
+  ASSERT_TRUE(VT->getNumElements() == 5);
+  ASSERT_TRUE(VT->getBitWidth() == 160);
+  Ty = VT->getElementType();
+  ASSERT_TRUE(Ty->isIntegerTy());
+  ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+
+  // Opaque struct.
+  Ty = parseType("%opaque", Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isStructTy());
+
+  ST = cast<StructType>(Ty);
+  ASSERT_TRUE(ST->isOpaque());
+
+  // Check we properly parse pointer types.
+  // One indirection.
+  Ty = parseType("i32*", Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isPointerTy());
+
+  PointerType *PT = cast<PointerType>(Ty);
+  Ty = PT->getElementType();
+  ASSERT_TRUE(Ty->isIntegerTy());
+  ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+
+  // Two indirections.
+  Ty = parseType("i32**", Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isPointerTy());
+
+  PT = cast<PointerType>(Ty);
+  Ty = PT->getElementType();
+  ASSERT_TRUE(Ty->isPointerTy());
+
+  PT = cast<PointerType>(Ty);
+  Ty = PT->getElementType();
+  ASSERT_TRUE(Ty->isIntegerTy());
+  ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+
+  // Check that we reject types with garbage.
+  Ty = parseType("i32 garbage", Error, M, &Mapping);
+  ASSERT_TRUE(!Ty);
+}
+
+TEST(AsmParserTest, TypeAtBeginningWithSlotMappingParsing) {
+  LLVMContext Ctx;
+  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;
+  unsigned Read;
+
+  // Check we properly parse integer types.
+  Type *Ty;
+  Ty = parseTypeAtBeginning("i32", Read, Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isIntegerTy());
+  ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+  ASSERT_TRUE(Read == 3);
+
+  // Check we properly parse integer types with exotic size.
+  Ty = parseTypeAtBeginning("i13", Read, Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isIntegerTy());
+  ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 13);
+  ASSERT_TRUE(Read == 3);
+
+  // Check we properly parse floating point types.
+  Ty = parseTypeAtBeginning("float", Read, Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isFloatTy());
+  ASSERT_TRUE(Read == 5);
+
+  Ty = parseTypeAtBeginning("double", Read, Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isDoubleTy());
+  ASSERT_TRUE(Read == 6);
+
+  // Check we properly parse struct types.
+  // Named struct.
+  Ty = parseTypeAtBeginning("%st", Read, Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isStructTy());
+  ASSERT_TRUE(Read == 3);
+
+  // Check the details of the struct.
+  StructType *ST = cast<StructType>(Ty);
+  ASSERT_TRUE(ST->getNumElements() == 2);
+  for (unsigned i = 0, e = ST->getNumElements(); i != e; ++i) {
+    Ty = ST->getElementType(i);
+    ASSERT_TRUE(Ty->isIntegerTy());
+    ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+  }
+
+  // Anonymous struct.
+  Ty = parseTypeAtBeginning("%0", Read, Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isStructTy());
+  ASSERT_TRUE(Read == 2);
+
+  // Check the details of the struct.
+  ST = cast<StructType>(Ty);
+  ASSERT_TRUE(ST->getNumElements() == 4);
+  for (unsigned i = 0, e = ST->getNumElements(); i != e; ++i) {
+    Ty = ST->getElementType(i);
+    ASSERT_TRUE(Ty->isIntegerTy());
+    ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+  }
+
+  // Check we properly parse vector types.
+  Ty = parseTypeAtBeginning("<5 x i32>", Read, Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isVectorTy());
+  ASSERT_TRUE(Read == 9);
+
+  // Check the details of the vector.
+  VectorType *VT = cast<VectorType>(Ty);
+  ASSERT_TRUE(VT->getNumElements() == 5);
+  ASSERT_TRUE(VT->getBitWidth() == 160);
+  Ty = VT->getElementType();
+  ASSERT_TRUE(Ty->isIntegerTy());
+  ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+
+  // Opaque struct.
+  Ty = parseTypeAtBeginning("%opaque", Read, Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isStructTy());
+  ASSERT_TRUE(Read == 7);
+
+  ST = cast<StructType>(Ty);
+  ASSERT_TRUE(ST->isOpaque());
+
+  // Check we properly parse pointer types.
+  // One indirection.
+  Ty = parseTypeAtBeginning("i32*", Read, Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isPointerTy());
+  ASSERT_TRUE(Read == 4);
+
+  PointerType *PT = cast<PointerType>(Ty);
+  Ty = PT->getElementType();
+  ASSERT_TRUE(Ty->isIntegerTy());
+  ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+
+  // Two indirections.
+  Ty = parseTypeAtBeginning("i32**", Read, Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isPointerTy());
+  ASSERT_TRUE(Read == 5);
+
+  PT = cast<PointerType>(Ty);
+  Ty = PT->getElementType();
+  ASSERT_TRUE(Ty->isPointerTy());
+
+  PT = cast<PointerType>(Ty);
+  Ty = PT->getElementType();
+  ASSERT_TRUE(Ty->isIntegerTy());
+  ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+
+  // Check that we reject types with garbage.
+  Ty = parseTypeAtBeginning("i32 garbage", Read, Error, M, &Mapping);
+  ASSERT_TRUE(Ty);
+  ASSERT_TRUE(Ty->isIntegerTy());
+  ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
+  // We go to the next token, i.e., we read "i32" + ' '.
+  ASSERT_TRUE(Read == 4);
+}
+
+} // end anonymous namespace