//===- ConstantRangeTest.cpp - ConstantRange tests ------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #include "llvm/IR/DataLayout.h" #include "llvm/IR/GlobalVariable.h" #include "llvm/IR/LLVMContext.h" #include "llvm/IR/Module.h" #include "llvm/IR/Type.h" #include "llvm/TargetParser/Triple.h" #include "llvm/Testing/Support/Error.h" #include "gtest/gtest.h" using namespace llvm; namespace { class DataLayoutTest : public ::testing::Test {}; TEST(DataLayout, LayoutStringFormat) { for (StringRef Str : {"", "e", "m:e", "m:e-e"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), Succeeded()); for (StringRef Str : {"-", "e-", "-m:e", "m:e--e"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("empty specification is not allowed")); } TEST(DataLayoutTest, InvalidSpecifier) { EXPECT_THAT_EXPECTED(DataLayout::parse("^"), FailedWithMessage("unknown specifier '^'")); EXPECT_THAT_EXPECTED(DataLayout::parse("I8:8"), FailedWithMessage("unknown specifier 'I'")); EXPECT_THAT_EXPECTED(DataLayout::parse("e-X"), FailedWithMessage("unknown specifier 'X'")); EXPECT_THAT_EXPECTED(DataLayout::parse("p0:32:32-64"), FailedWithMessage("unknown specifier '6'")); } TEST(DataLayoutTest, ParseEndianness) { EXPECT_THAT_EXPECTED(DataLayout::parse("e"), Succeeded()); EXPECT_THAT_EXPECTED(DataLayout::parse("E"), Succeeded()); for (StringRef Str : {"ee", "e0", "e:0", "E0:E", "El", "E:B"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("malformed specification, must be just 'e' or 'E'")); } TEST(DataLayoutTest, ParseMangling) { for (StringRef Str : {"m:a", "m:e", "m:l", "m:m", "m:o", "m:w", "m:x"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), Succeeded()); for (StringRef Str : {"m", "ms:m", "m:"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage( "malformed specification, must be of the form \"m:\"")); for (StringRef Str : {"m:ms", "m:E", "m:0"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), FailedWithMessage("unknown mangling mode")); } TEST(DataLayoutTest, ParseStackNaturalAlign) { for (StringRef Str : {"S8", "S32768"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), Succeeded()); EXPECT_THAT_EXPECTED( DataLayout::parse("S"), FailedWithMessage( "malformed specification, must be of the form \"S\"")); for (StringRef Str : {"SX", "S0x20", "S65536"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("stack natural alignment must be a 16-bit integer")); EXPECT_THAT_EXPECTED( DataLayout::parse("S0"), FailedWithMessage("stack natural alignment must be non-zero")); for (StringRef Str : {"S1", "S7", "S24", "S65535"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("stack natural alignment must be a power of two " "times the byte width")); } TEST(DataLayoutTest, ParseAddrSpace) { for (StringRef Str : {"P0", "A0", "G0", "P1", "A1", "G1", "P16777215", "A16777215", "G16777215"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), Succeeded()); for (StringRef Str : {"P", "A", "G"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage(("malformed specification, must be of the form \"" + Twine(Str.front()) + "
\"") .str())); for (StringRef Str : {"Px", "A0x1", "G16777216"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("address space must be a 24-bit integer")); } TEST(DataLayoutTest, ParseFuncPtrSpec) { for (StringRef Str : {"Fi8", "Fn16", "Fi32768", "Fn32768"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), Succeeded()); EXPECT_THAT_EXPECTED( DataLayout::parse("F"), FailedWithMessage( "malformed specification, must be of the form \"F\"")); EXPECT_THAT_EXPECTED( DataLayout::parse("FN"), FailedWithMessage("unknown function pointer alignment type 'N'")); EXPECT_THAT_EXPECTED( DataLayout::parse("F32"), FailedWithMessage("unknown function pointer alignment type '3'")); for (StringRef Str : {"Fi", "Fn"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("ABI alignment component cannot be empty")); for (StringRef Str : {"Fii", "Fn32x", "Fi65536", "Fn65536"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("ABI alignment must be a 16-bit integer")); for (StringRef Str : {"Fi0", "Fn0"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), FailedWithMessage("ABI alignment must be non-zero")); for (StringRef Str : {"Fi12", "Fn24"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage( "ABI alignment must be a power of two times the byte width")); } class DataLayoutPrimitiveSpecificationTest : public DataLayoutTest, public ::testing::WithParamInterface { char Specifier; public: DataLayoutPrimitiveSpecificationTest() : Specifier(GetParam()) {} std::string format(StringRef Str) const { std::string Res = Str.str(); std::replace(Res.begin(), Res.end(), '!', Specifier); return Res; } }; INSTANTIATE_TEST_SUITE_P(PrmitiveSpecifiers, DataLayoutPrimitiveSpecificationTest, ::testing::Values('i', 'f', 'v')); TEST_P(DataLayoutPrimitiveSpecificationTest, ParsePrimitiveSpec) { for (StringRef Str : {"!1:16", "!8:8:8", "!16:32:64", "!16777215:32768:32768"}) EXPECT_THAT_EXPECTED(DataLayout::parse(format(Str)), Succeeded()); for (StringRef Str : {"!", "!1", "!32:32:32:32", "!16:32:64:128"}) EXPECT_THAT_EXPECTED( DataLayout::parse(format(Str)), FailedWithMessage(format("malformed specification, must be of the form " "\"!:[:]\""))); // size for (StringRef Str : {"!:8", "!:16:16", "!:32:64"}) EXPECT_THAT_EXPECTED(DataLayout::parse(format(Str)), FailedWithMessage("size component cannot be empty")); for (StringRef Str : {"!0:8", "!0x8:8", "!x:8:8", "!0:16:32", "!16777216:64:64"}) EXPECT_THAT_EXPECTED( DataLayout::parse(format(Str)), FailedWithMessage("size must be a non-zero 24-bit integer")); // ABI alignment for (StringRef Str : {"!8:", "!16::16", "!32::64"}) EXPECT_THAT_EXPECTED( DataLayout::parse(format(Str)), FailedWithMessage("ABI alignment component cannot be empty")); for (StringRef Str : {"!1:x", "!8:8x:8", "!16:65536:65536"}) EXPECT_THAT_EXPECTED( DataLayout::parse(format(Str)), FailedWithMessage("ABI alignment must be a 16-bit integer")); for (StringRef Str : {"!8:0", "!16:0:16", "!32:0:64"}) EXPECT_THAT_EXPECTED(DataLayout::parse(format(Str)), FailedWithMessage("ABI alignment must be non-zero")); for (StringRef Str : {"!1:1", "!8:4", "!16:6:16", "!32:24:64"}) EXPECT_THAT_EXPECTED( DataLayout::parse(format(Str)), FailedWithMessage( "ABI alignment must be a power of two times the byte width")); // preferred alignment for (StringRef Str : {"!1:8:", "!16:16:", "!64:32:"}) EXPECT_THAT_EXPECTED( DataLayout::parse(format(Str)), FailedWithMessage("preferred alignment component cannot be empty")); for (StringRef Str : {"!1:8:x", "!8:8:0x8", "!16:32:65536"}) EXPECT_THAT_EXPECTED( DataLayout::parse(format(Str)), FailedWithMessage("preferred alignment must be a 16-bit integer")); for (StringRef Str : {"!8:8:0", "!32:16:0"}) EXPECT_THAT_EXPECTED( DataLayout::parse(format(Str)), FailedWithMessage("preferred alignment must be non-zero")); for (StringRef Str : {"!1:8:12", "!8:8:17", "!16:32:40"}) EXPECT_THAT_EXPECTED( DataLayout::parse(format(Str)), FailedWithMessage( "preferred alignment must be a power of two times the byte width")); for (StringRef Str : {"!1:16:8", "!64:32:16"}) EXPECT_THAT_EXPECTED( DataLayout::parse(format(Str)), FailedWithMessage( "preferred alignment cannot be less than the ABI alignment")); // Additional check for byte-sized integer. if (GetParam() == 'i') { for (StringRef Str : {"!8:16", "!8:16:8", "!8:16:32"}) EXPECT_THAT_EXPECTED(DataLayout::parse(format(Str)), FailedWithMessage("i8 must be 8-bit aligned")); } } TEST(DataLayoutTest, ParseAggregateSpec) { for (StringRef Str : {"a:8", "a:0:16", "a0:32:64", "a:32768:32768"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), Succeeded()); for (StringRef Str : {"a", "a0", "a:32:32:32", "a0:32:64:128"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("malformed specification, must be of the form " "\"a:[:]\"")); // size for (StringRef Str : {"a1:8", "a0x0:8", "ax:16:32"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), FailedWithMessage("size must be zero")); // ABI alignment for (StringRef Str : {"a:", "a0:", "a::32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("ABI alignment component cannot be empty")); for (StringRef Str : {"a:x", "a0:0x0", "a:65536", "a0:65536:65536"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("ABI alignment must be a 16-bit integer")); for (StringRef Str : {"a:1", "a:4", "a:9:16", "a0:24:32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage( "ABI alignment must be a power of two times the byte width")); // preferred alignment for (StringRef Str : {"a:8:", "a0:16:", "a0:0:"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("preferred alignment component cannot be empty")); for (StringRef Str : {"a:16:x", "a0:8:0x8", "a:16:65536"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("preferred alignment must be a 16-bit integer")); for (StringRef Str : {"a:0:0", "a0:16:0"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("preferred alignment must be non-zero")); for (StringRef Str : {"a:8:12", "a:16:17", "a0:32:40"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage( "preferred alignment must be a power of two times the byte width")); for (StringRef Str : {"a:16:8", "a0:32:16"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage( "preferred alignment cannot be less than the ABI alignment")); } TEST(DataLayout, ParsePointerSpec) { for (StringRef Str : {"p:16:8", "p:16:16:64", "p:32:64:64:32", "p0:32:64", "p42:64:32:32", "p16777215:32:32:64:8", "p16777215:16777215:32768:32768:16777215"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), Succeeded()); for (StringRef Str : {"p", "p0", "p:32", "p0:32", "p:32:32:32:32:32", "p0:32:32:32:32:32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("malformed specification, must be of the form " "\"p[]::[:[:]]\"")); // address space for (StringRef Str : {"p0x0:32:32", "px:32:32:32", "p16777216:32:32:32:32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("address space must be a 24-bit integer")); // pointer size for (StringRef Str : {"p::32", "p0::32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("pointer size component cannot be empty")); for (StringRef Str : {"p:0:32", "p0:0x1:32:32", "p42:16777216:32:32:32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("pointer size must be a non-zero 24-bit integer")); // ABI alignment for (StringRef Str : {"p:32:", "p0:32::32", "p42:32::32:32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("ABI alignment component cannot be empty")); for (StringRef Str : {"p:32:x", "p0:32:0x20:32", "p42:32:65536:32:32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("ABI alignment must be a 16-bit integer")); for (StringRef Str : {"p:32:0", "p0:32:0:32", "p42:32:0:32:32"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), FailedWithMessage("ABI alignment must be non-zero")); for (StringRef Str : {"p:32:4", "p42:32:24:32", "p0:32:65535:32:32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage( "ABI alignment must be a power of two times the byte width")); // preferred alignment for (StringRef Str : {"p:32:32:", "p0:32:32:", "p42:32:32::32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("preferred alignment component cannot be empty")); for (StringRef Str : {"p:32:32:x", "p0:32:32:0x20", "p42:32:32:65536:32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("preferred alignment must be a 16-bit integer")); for (StringRef Str : {"p:32:32:0", "p0:32:32:0", "p42:32:32:0:32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("preferred alignment must be non-zero")); for (StringRef Str : {"p:32:32:4", "p0:32:32:24", "p42:32:32:65535:32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage( "preferred alignment must be a power of two times the byte width")); for (StringRef Str : {"p:64:64:32", "p0:16:32:16:16"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage( "preferred alignment cannot be less than the ABI alignment")); // index size for (StringRef Str : {"p:32:32:32:", "p0:32:32:32:"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("index size component cannot be empty")); for (StringRef Str : {"p:32:32:32:0", "p0:32:32:32:0x20", "p42:32:32:32:16777216"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("index size must be a non-zero 24-bit integer")); for (StringRef Str : {"p:16:16:16:17", "p0:32:64:64:64", "p42:16:64:64:32"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("index size cannot be larger than the pointer size")); } TEST(DataLayoutTest, ParseNativeIntegersSpec) { for (StringRef Str : {"n1", "n1:8", "n24:12:16777215"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), Succeeded()); for (StringRef Str : {"n", "n1:", "n:8", "n16::32"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), FailedWithMessage("size component cannot be empty")); for (StringRef Str : {"n0", "n0x8:16", "n8:0", "n16:0:32", "n16777216", "n16:16777216", "n32:64:16777216"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("size must be a non-zero 24-bit integer")); } TEST(DataLayout, ParseNonIntegralAddrSpace) { for (StringRef Str : {"ni:1", "ni:16777215", "ni:1:16777215"}) EXPECT_THAT_EXPECTED(DataLayout::parse(Str), Succeeded()); for (StringRef Str : {"ni", "ni42", "nix"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("malformed specification, must be of the form " "\"ni:
[:
]...\"")); for (StringRef Str : {"ni:", "ni::42", "ni:42:"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("address space component cannot be empty")); for (StringRef Str : {"ni:x", "ni:42:0x1", "ni:16777216", "ni:42:16777216"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("address space must be a 24-bit integer")); for (StringRef Str : {"ni:0", "ni:42:0"}) EXPECT_THAT_EXPECTED( DataLayout::parse(Str), FailedWithMessage("address space 0 cannot be non-integral")); } TEST(DataLayout, GetStackAlignment) { DataLayout Default; EXPECT_FALSE(Default.getStackAlignment().has_value()); std::pair Cases[] = { {"S8", Align(1)}, {"S64", Align(8)}, {"S32768", Align(4096)}, }; for (auto [Layout, Val] : Cases) { DataLayout DL = cantFail(DataLayout::parse(Layout)); EXPECT_EQ(DL.getStackAlignment(), Val) << Layout; } } TEST(DataLayout, GetPointerSizeInBits) { std::tuple Cases[] = { {"", 64, 64, 64}, {"p:16:32", 16, 16, 16}, {"p0:32:64", 32, 32, 32}, {"p1:16:32", 64, 16, 64}, {"p1:31:32-p2:15:16:16:14", 64, 31, 15}, }; for (auto [Layout, V0, V1, V2] : Cases) { DataLayout DL = cantFail(DataLayout::parse(Layout)); EXPECT_EQ(DL.getPointerSizeInBits(0), V0) << Layout; EXPECT_EQ(DL.getPointerSizeInBits(1), V1) << Layout; EXPECT_EQ(DL.getPointerSizeInBits(2), V2) << Layout; } } TEST(DataLayout, GetPointerSize) { std::tuple Cases[] = { {"", 8, 8, 8}, {"p:16:32", 2, 2, 2}, {"p0:32:64", 4, 4, 4}, {"p1:17:32", 8, 3, 8}, {"p1:31:64-p2:23:8:16:9", 8, 4, 3}, }; for (auto [Layout, V0, V1, V2] : Cases) { DataLayout DL = cantFail(DataLayout::parse(Layout)); EXPECT_EQ(DL.getPointerSize(0), V0) << Layout; EXPECT_EQ(DL.getPointerSize(1), V1) << Layout; EXPECT_EQ(DL.getPointerSize(2), V2) << Layout; } } TEST(DataLayout, GetIndexSizeInBits) { std::tuple Cases[] = { {"", 64, 64, 64}, {"p:16:32", 16, 16, 16}, {"p0:32:64", 32, 32, 32}, {"p1:16:32:32:10", 64, 10, 64}, {"p1:31:32:64:20-p2:17:16:16:15", 64, 20, 15}, }; for (auto [Layout, V0, V1, V2] : Cases) { DataLayout DL = cantFail(DataLayout::parse(Layout)); EXPECT_EQ(DL.getIndexSizeInBits(0), V0) << Layout; EXPECT_EQ(DL.getIndexSizeInBits(1), V1) << Layout; EXPECT_EQ(DL.getIndexSizeInBits(2), V2) << Layout; } } TEST(DataLayout, GetIndexSize) { std::tuple Cases[] = { {"", 8, 8, 8}, {"p:16:32", 2, 2, 2}, {"p0:27:64", 4, 4, 4}, {"p1:19:32:64:5", 8, 1, 8}, {"p1:33:32:64:23-p2:21:8:16:13", 8, 3, 2}, }; for (auto [Layout, V0, V1, V2] : Cases) { DataLayout DL = cantFail(DataLayout::parse(Layout)); EXPECT_EQ(DL.getIndexSize(0), V0) << Layout; EXPECT_EQ(DL.getIndexSize(1), V1) << Layout; EXPECT_EQ(DL.getIndexSize(2), V2) << Layout; } } TEST(DataLayout, GetPointerABIAlignment) { std::tuple Cases[] = { {"", 8, 8, 8}, {"p:16:32", 4, 4, 4}, {"p0:16:32:64", 4, 4, 4}, {"p1:32:16:64", 8, 2, 8}, {"p1:33:16:32:15-p2:23:8:16:9", 8, 2, 1}, }; for (auto [Layout, V0, V1, V2] : Cases) { DataLayout DL = cantFail(DataLayout::parse(Layout)); EXPECT_EQ(DL.getPointerABIAlignment(0).value(), V0) << Layout; EXPECT_EQ(DL.getPointerABIAlignment(1).value(), V1) << Layout; EXPECT_EQ(DL.getPointerABIAlignment(2).value(), V2) << Layout; } } TEST(DataLayout, GetPointerPrefAlignment) { std::tuple Cases[] = { {"", 8, 8, 8}, {"p:16:32", 4, 4, 4}, {"p0:8:16:32", 4, 4, 4}, {"p1:32:8:16", 8, 2, 8}, {"p1:33:8:16:31-p2:23:8:32:17", 8, 2, 4}, }; for (auto [Layout, V0, V1, V2] : Cases) { DataLayout DL = cantFail(DataLayout::parse(Layout)); EXPECT_EQ(DL.getPointerPrefAlignment(0).value(), V0) << Layout; EXPECT_EQ(DL.getPointerPrefAlignment(1).value(), V1) << Layout; EXPECT_EQ(DL.getPointerPrefAlignment(2).value(), V2) << Layout; } } TEST(DataLayout, IsNonIntegralAddressSpace) { DataLayout Default; EXPECT_THAT(Default.getNonIntegralAddressSpaces(), ::testing::SizeIs(0)); EXPECT_FALSE(Default.isNonIntegralAddressSpace(0)); EXPECT_FALSE(Default.isNonIntegralAddressSpace(1)); DataLayout Custom = cantFail(DataLayout::parse("ni:2:16777215")); EXPECT_THAT(Custom.getNonIntegralAddressSpaces(), ::testing::ElementsAreArray({2U, 16777215U})); EXPECT_FALSE(Custom.isNonIntegralAddressSpace(0)); EXPECT_FALSE(Custom.isNonIntegralAddressSpace(1)); EXPECT_TRUE(Custom.isNonIntegralAddressSpace(2)); EXPECT_TRUE(Custom.isNonIntegralAddressSpace(16777215)); } TEST(DataLayoutTest, CopyAssignmentInvalidatesStructLayout) { DataLayout DL1 = cantFail(DataLayout::parse("p:32:32")); DataLayout DL2 = cantFail(DataLayout::parse("p:64:64")); LLVMContext Ctx; StructType *Ty = StructType::get(PointerType::getUnqual(Ctx)); // Initialize struct layout caches. EXPECT_EQ(DL1.getStructLayout(Ty)->getSizeInBits(), 32U); EXPECT_EQ(DL1.getStructLayout(Ty)->getAlignment(), Align(4)); EXPECT_EQ(DL2.getStructLayout(Ty)->getSizeInBits(), 64U); EXPECT_EQ(DL2.getStructLayout(Ty)->getAlignment(), Align(8)); // The copy should invalidate DL1's cache. DL1 = DL2; EXPECT_EQ(DL1.getStructLayout(Ty)->getSizeInBits(), 64U); EXPECT_EQ(DL1.getStructLayout(Ty)->getAlignment(), Align(8)); EXPECT_EQ(DL2.getStructLayout(Ty)->getSizeInBits(), 64U); EXPECT_EQ(DL2.getStructLayout(Ty)->getAlignment(), Align(8)); } TEST(DataLayoutTest, FunctionPtrAlign) { EXPECT_EQ(MaybeAlign(0), DataLayout("").getFunctionPtrAlign()); EXPECT_EQ(MaybeAlign(1), DataLayout("Fi8").getFunctionPtrAlign()); EXPECT_EQ(MaybeAlign(2), DataLayout("Fi16").getFunctionPtrAlign()); EXPECT_EQ(MaybeAlign(4), DataLayout("Fi32").getFunctionPtrAlign()); EXPECT_EQ(MaybeAlign(8), DataLayout("Fi64").getFunctionPtrAlign()); EXPECT_EQ(MaybeAlign(1), DataLayout("Fn8").getFunctionPtrAlign()); EXPECT_EQ(MaybeAlign(2), DataLayout("Fn16").getFunctionPtrAlign()); EXPECT_EQ(MaybeAlign(4), DataLayout("Fn32").getFunctionPtrAlign()); EXPECT_EQ(MaybeAlign(8), DataLayout("Fn64").getFunctionPtrAlign()); EXPECT_EQ(DataLayout::FunctionPtrAlignType::Independent, DataLayout("").getFunctionPtrAlignType()); EXPECT_EQ(DataLayout::FunctionPtrAlignType::Independent, DataLayout("Fi8").getFunctionPtrAlignType()); EXPECT_EQ(DataLayout::FunctionPtrAlignType::MultipleOfFunctionAlign, DataLayout("Fn8").getFunctionPtrAlignType()); EXPECT_EQ(DataLayout("Fi8"), DataLayout("Fi8")); EXPECT_NE(DataLayout("Fi8"), DataLayout("Fi16")); EXPECT_NE(DataLayout("Fi8"), DataLayout("Fn8")); DataLayout a(""), b("Fi8"), c("Fn8"); EXPECT_NE(a, b); EXPECT_NE(a, c); EXPECT_NE(b, c); a = b; EXPECT_EQ(a, b); a = c; EXPECT_EQ(a, c); } TEST(DataLayoutTest, ValueOrABITypeAlignment) { const DataLayout DL("Fi8"); LLVMContext Context; Type *const FourByteAlignType = Type::getInt32Ty(Context); EXPECT_EQ(Align(16), DL.getValueOrABITypeAlignment(MaybeAlign(16), FourByteAlignType)); EXPECT_EQ(Align(4), DL.getValueOrABITypeAlignment(MaybeAlign(), FourByteAlignType)); } TEST(DataLayoutTest, GlobalsAddressSpace) { // When not explicitly defined the globals address space should be zero: EXPECT_EQ(DataLayout("").getDefaultGlobalsAddressSpace(), 0u); EXPECT_EQ(DataLayout("P1-A2").getDefaultGlobalsAddressSpace(), 0u); EXPECT_EQ(DataLayout("G2").getDefaultGlobalsAddressSpace(), 2u); // Check that creating a GlobalVariable without an explicit address space // in a module with a default globals address space respects that default: LLVMContext Context; std::unique_ptr M(new Module("MyModule", Context)); // Default is globals in address space zero: auto *Int32 = Type::getInt32Ty(Context); auto *DefaultGlobal1 = new GlobalVariable( *M, Int32, false, GlobalValue::ExternalLinkage, nullptr); EXPECT_EQ(DefaultGlobal1->getAddressSpace(), 0u); auto *ExplicitGlobal1 = new GlobalVariable( *M, Int32, false, GlobalValue::ExternalLinkage, nullptr, "", nullptr, GlobalValue::NotThreadLocal, 123); EXPECT_EQ(ExplicitGlobal1->getAddressSpace(), 123u); // When using a datalayout with the global address space set to 200, global // variables should default to 200 M->setDataLayout("G200"); auto *DefaultGlobal2 = new GlobalVariable( *M, Int32, false, GlobalValue::ExternalLinkage, nullptr); EXPECT_EQ(DefaultGlobal2->getAddressSpace(), 200u); auto *ExplicitGlobal2 = new GlobalVariable( *M, Int32, false, GlobalValue::ExternalLinkage, nullptr, "", nullptr, GlobalValue::NotThreadLocal, 123); EXPECT_EQ(ExplicitGlobal2->getAddressSpace(), 123u); } TEST(DataLayoutTest, VectorAlign) { Expected DL = DataLayout::parse("v64:64"); EXPECT_THAT_EXPECTED(DL, Succeeded()); LLVMContext Context; Type *const FloatTy = Type::getFloatTy(Context); Type *const V8F32Ty = FixedVectorType::get(FloatTy, 8); // The alignment for a vector type larger than any specified vector type uses // the natural alignment as a fallback. EXPECT_EQ(Align(4 * 8), DL->getABITypeAlign(V8F32Ty)); EXPECT_EQ(Align(4 * 8), DL->getPrefTypeAlign(V8F32Ty)); } TEST(DataLayoutTest, UEFI) { Triple TT = Triple("x86_64-unknown-uefi"); // Test UEFI X86_64 Mangling Component. EXPECT_STREQ(DataLayout::getManglingComponent(TT), "-m:w"); } } // anonymous namespace