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https://github.com/c64scene-ar/llvm-6502.git
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4b50ecbf6a
This commit extends the interface provided by the AsmParser library by adding a function that allows the user to parse a standalone contant value. This change is useful for MIR serialization, as it will allow the MIR Parser to parse the constant values in a machine constant pool. Reviewers: Duncan P. N. Exon Smith Differential Revision: http://reviews.llvm.org/D10280 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242579 91177308-0d34-0410-b5e6-96231b3b80d8
116 lines
3.6 KiB
C++
116 lines
3.6 KiB
C++
//===- llvm/unittest/AsmParser/AsmParserTest.cpp - asm parser unittests ---===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/StringRef.h"
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#include "llvm/AsmParser/Parser.h"
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#include "llvm/AsmParser/SlotMapping.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Support/SourceMgr.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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TEST(AsmParserTest, NullTerminatedInput) {
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LLVMContext &Ctx = getGlobalContext();
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StringRef Source = "; Empty module \n";
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SMDiagnostic Error;
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auto Mod = parseAssemblyString(Source, Error, Ctx);
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EXPECT_TRUE(Mod != nullptr);
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EXPECT_TRUE(Error.getMessage().empty());
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}
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#ifdef GTEST_HAS_DEATH_TEST
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#ifndef NDEBUG
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TEST(AsmParserTest, NonNullTerminatedInput) {
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LLVMContext &Ctx = getGlobalContext();
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StringRef Source = "; Empty module \n\1\2";
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SMDiagnostic Error;
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std::unique_ptr<Module> Mod;
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EXPECT_DEATH(Mod = parseAssemblyString(Source.substr(0, Source.size() - 2),
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Error, Ctx),
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"Buffer is not null terminated!");
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}
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#endif
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#endif
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TEST(AsmParserTest, SlotMappingTest) {
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LLVMContext &Ctx = getGlobalContext();
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StringRef Source = "@0 = global i32 0\n !0 = !{}\n !42 = !{i32 42}";
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SMDiagnostic Error;
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SlotMapping Mapping;
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auto Mod = parseAssemblyString(Source, Error, Ctx, &Mapping);
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EXPECT_TRUE(Mod != nullptr);
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EXPECT_TRUE(Error.getMessage().empty());
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ASSERT_EQ(Mapping.GlobalValues.size(), 1u);
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EXPECT_TRUE(isa<GlobalVariable>(Mapping.GlobalValues[0]));
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EXPECT_EQ(Mapping.MetadataNodes.size(), 2u);
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EXPECT_EQ(Mapping.MetadataNodes.count(0), 1u);
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EXPECT_EQ(Mapping.MetadataNodes.count(42), 1u);
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EXPECT_EQ(Mapping.MetadataNodes.count(1), 0u);
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}
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TEST(AsmParserTest, TypeAndConstantValueParsing) {
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LLVMContext &Ctx = getGlobalContext();
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SMDiagnostic Error;
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StringRef Source = "define void @test() {\n entry:\n ret void\n}";
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auto Mod = parseAssemblyString(Source, Error, Ctx);
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ASSERT_TRUE(Mod != nullptr);
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auto &M = *Mod;
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const Value *V;
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V = parseConstantValue("double 3.5", Error, M);
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ASSERT_TRUE(V);
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EXPECT_TRUE(V->getType()->isDoubleTy());
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ASSERT_TRUE(isa<ConstantFP>(V));
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EXPECT_TRUE(cast<ConstantFP>(V)->isExactlyValue(3.5));
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V = parseConstantValue("i32 42", Error, M);
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ASSERT_TRUE(V);
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EXPECT_TRUE(V->getType()->isIntegerTy());
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ASSERT_TRUE(isa<ConstantInt>(V));
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EXPECT_TRUE(cast<ConstantInt>(V)->equalsInt(42));
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V = parseConstantValue("<4 x i32> <i32 0, i32 1, i32 2, i32 3>", Error, M);
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ASSERT_TRUE(V);
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EXPECT_TRUE(V->getType()->isVectorTy());
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ASSERT_TRUE(isa<ConstantDataVector>(V));
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V = parseConstantValue("i32 add (i32 1, i32 2)", Error, M);
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ASSERT_TRUE(V);
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ASSERT_TRUE(isa<ConstantInt>(V));
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V = parseConstantValue("i8* blockaddress(@test, %entry)", Error, M);
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ASSERT_TRUE(V);
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ASSERT_TRUE(isa<BlockAddress>(V));
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EXPECT_FALSE(parseConstantValue("duble 3.25", Error, M));
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EXPECT_EQ(Error.getMessage(), "expected type");
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EXPECT_FALSE(parseConstantValue("i32 3.25", Error, M));
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EXPECT_EQ(Error.getMessage(), "floating point constant invalid for type");
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EXPECT_FALSE(parseConstantValue("i32* @foo", Error, M));
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EXPECT_EQ(Error.getMessage(), "expected a constant value");
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EXPECT_FALSE(parseConstantValue("i32 3, ", Error, M));
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EXPECT_EQ(Error.getMessage(), "expected end of string");
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}
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} // end anonymous namespace
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