X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=unittests%2FIR%2FInstructionsTest.cpp;h=3ca3ad2b6e8376c99828c66137f283a15bd7a290;hb=00552e3875ee5f382db6c98286a241a7d0efe1b8;hp=34d662dcb343d8321128f068746e4cdc838ead52;hpb=485c7fd76b32a69c46782a715682ed8831b0873b;p=oota-llvm.git diff --git a/unittests/IR/InstructionsTest.cpp b/unittests/IR/InstructionsTest.cpp index 34d662dcb34..3ca3ad2b6e8 100644 --- a/unittests/IR/InstructionsTest.cpp +++ b/unittests/IR/InstructionsTest.cpp @@ -14,11 +14,14 @@ #include "llvm/IR/Constants.h" #include "llvm/IR/DataLayout.h" #include "llvm/IR/DerivedTypes.h" +#include "llvm/IR/Function.h" #include "llvm/IR/IRBuilder.h" #include "llvm/IR/LLVMContext.h" #include "llvm/IR/MDBuilder.h" +#include "llvm/IR/Module.h" #include "llvm/IR/Operator.h" #include "gtest/gtest.h" +#include namespace llvm { namespace { @@ -47,6 +50,58 @@ TEST(InstructionsTest, ReturnInst) { delete r1; } +// Test fixture that provides a module and a single function within it. Useful +// for tests that need to refer to the function in some way. +class ModuleWithFunctionTest : public testing::Test { +protected: + ModuleWithFunctionTest() : M(new Module("MyModule", Ctx)) { + FArgTypes.push_back(Type::getInt8Ty(Ctx)); + FArgTypes.push_back(Type::getInt32Ty(Ctx)); + FArgTypes.push_back(Type::getInt64Ty(Ctx)); + FunctionType *FTy = + FunctionType::get(Type::getVoidTy(Ctx), FArgTypes, false); + F = Function::Create(FTy, Function::ExternalLinkage, "", M.get()); + } + + LLVMContext Ctx; + std::unique_ptr M; + SmallVector FArgTypes; + Function *F; +}; + +TEST_F(ModuleWithFunctionTest, CallInst) { + Value *Args[] = {ConstantInt::get(Type::getInt8Ty(Ctx), 20), + ConstantInt::get(Type::getInt32Ty(Ctx), 9999), + ConstantInt::get(Type::getInt64Ty(Ctx), 42)}; + std::unique_ptr Call(CallInst::Create(F, Args)); + + // Make sure iteration over a call's arguments works as expected. + unsigned Idx = 0; + for (Value *Arg : Call->arg_operands()) { + EXPECT_EQ(FArgTypes[Idx], Arg->getType()); + EXPECT_EQ(Call->getArgOperand(Idx)->getType(), Arg->getType()); + Idx++; + } +} + +TEST_F(ModuleWithFunctionTest, InvokeInst) { + BasicBlock *BB1 = BasicBlock::Create(Ctx, "", F); + BasicBlock *BB2 = BasicBlock::Create(Ctx, "", F); + + Value *Args[] = {ConstantInt::get(Type::getInt8Ty(Ctx), 20), + ConstantInt::get(Type::getInt32Ty(Ctx), 9999), + ConstantInt::get(Type::getInt64Ty(Ctx), 42)}; + std::unique_ptr Invoke(InvokeInst::Create(F, BB1, BB2, Args)); + + // Make sure iteration over invoke's arguments works as expected. + unsigned Idx = 0; + for (Value *Arg : Invoke->arg_operands()) { + EXPECT_EQ(FArgTypes[Idx], Arg->getType()); + EXPECT_EQ(Invoke->getArgOperand(Idx)->getType(), Arg->getType()); + Idx++; + } +} + TEST(InstructionsTest, BranchInst) { LLVMContext &C(getGlobalContext()); @@ -65,9 +120,9 @@ TEST(InstructionsTest, BranchInst) { EXPECT_EQ(1U, b0->getNumOperands()); EXPECT_NE(b0->op_begin(), b0->op_end()); - EXPECT_EQ(b0->op_end(), llvm::next(b0->op_begin())); + EXPECT_EQ(b0->op_end(), std::next(b0->op_begin())); - EXPECT_EQ(b0->op_end(), llvm::next(b0->op_begin())); + EXPECT_EQ(b0->op_end(), std::next(b0->op_begin())); IntegerType* Int1 = IntegerType::get(C, 1); Constant* One = ConstantInt::get(Int1, 1, true); @@ -145,10 +200,13 @@ TEST(InstructionsTest, CastInst) { Type *V2Int64PtrTy = VectorType::get(Int64PtrTy, 2); Type *V2Int32PtrTy = VectorType::get(Int32PtrTy, 2); + Type *V4Int32PtrTy = VectorType::get(Int32PtrTy, 4); const Constant* c8 = Constant::getNullValue(V8x8Ty); const Constant* c64 = Constant::getNullValue(V8x64Ty); + const Constant *v2ptr32 = Constant::getNullValue(V2Int32PtrTy); + EXPECT_TRUE(CastInst::isCastable(V8x8Ty, X86MMXTy)); EXPECT_TRUE(CastInst::isCastable(X86MMXTy, V8x8Ty)); EXPECT_FALSE(CastInst::isCastable(Int64Ty, X86MMXTy)); @@ -169,6 +227,10 @@ TEST(InstructionsTest, CastInst) { EXPECT_FALSE(CastInst::isBitCastable(V2Int32PtrTy, V2Int32PtrAS1Ty)); EXPECT_FALSE(CastInst::isBitCastable(V2Int32PtrAS1Ty, V2Int32PtrTy)); EXPECT_TRUE(CastInst::isBitCastable(V2Int32PtrAS1Ty, V2Int64PtrAS1Ty)); + EXPECT_TRUE(CastInst::isCastable(V2Int32PtrAS1Ty, V2Int32PtrTy)); + EXPECT_EQ(CastInst::AddrSpaceCast, CastInst::getCastOpcode(v2ptr32, true, + V2Int32PtrAS1Ty, + true)); // Test mismatched number of elements for pointers EXPECT_FALSE(CastInst::isBitCastable(V2Int32PtrAS1Ty, V4Int64PtrAS1Ty)); @@ -197,14 +259,42 @@ TEST(InstructionsTest, CastInst) { EXPECT_TRUE(CastInst::isBitCastable(V2Int32PtrTy, V2Int64PtrTy)); EXPECT_FALSE(CastInst::isBitCastable(V2Int32Ty, V2Int64Ty)); EXPECT_FALSE(CastInst::isBitCastable(V2Int64Ty, V2Int32Ty)); + + + EXPECT_FALSE(CastInst::castIsValid(Instruction::BitCast, + Constant::getNullValue(V4Int32PtrTy), + V2Int32PtrTy)); + EXPECT_FALSE(CastInst::castIsValid(Instruction::BitCast, + Constant::getNullValue(V2Int32PtrTy), + V4Int32PtrTy)); + + EXPECT_FALSE(CastInst::castIsValid(Instruction::AddrSpaceCast, + Constant::getNullValue(V4Int32PtrAS1Ty), + V2Int32PtrTy)); + EXPECT_FALSE(CastInst::castIsValid(Instruction::AddrSpaceCast, + Constant::getNullValue(V2Int32PtrTy), + V4Int32PtrAS1Ty)); + + + // Check that assertion is not hit when creating a cast with a vector of + // pointers + // First form + BasicBlock *BB = BasicBlock::Create(C); + Constant *NullV2I32Ptr = Constant::getNullValue(V2Int32PtrTy); + CastInst::CreatePointerCast(NullV2I32Ptr, V2Int32Ty, "foo", BB); + + // Second form + CastInst::CreatePointerCast(NullV2I32Ptr, V2Int32Ty); } TEST(InstructionsTest, VectorGep) { LLVMContext &C(getGlobalContext()); // Type Definitions - PointerType *Ptri8Ty = PointerType::get(IntegerType::get(C, 8), 0); - PointerType *Ptri32Ty = PointerType::get(IntegerType::get(C, 32), 0); + Type *I8Ty = IntegerType::get(C, 8); + Type *I32Ty = IntegerType::get(C, 32); + PointerType *Ptri8Ty = PointerType::get(I8Ty, 0); + PointerType *Ptri32Ty = PointerType::get(I32Ty, 0); VectorType *V2xi8PTy = VectorType::get(Ptri8Ty, 2); VectorType *V2xi32PTy = VectorType::get(Ptri32Ty, 2); @@ -230,10 +320,10 @@ TEST(InstructionsTest, VectorGep) { ICmpInst *ICmp2 = new ICmpInst(*BB0, ICmpInst::ICMP_SGE, PtrVecA, PtrVecB); EXPECT_NE(ICmp0, ICmp2); // suppress warning. - GetElementPtrInst *Gep0 = GetElementPtrInst::Create(PtrVecA, C2xi32a); - GetElementPtrInst *Gep1 = GetElementPtrInst::Create(PtrVecA, C2xi32b); - GetElementPtrInst *Gep2 = GetElementPtrInst::Create(PtrVecB, C2xi32a); - GetElementPtrInst *Gep3 = GetElementPtrInst::Create(PtrVecB, C2xi32b); + GetElementPtrInst *Gep0 = GetElementPtrInst::Create(I32Ty, PtrVecA, C2xi32a); + GetElementPtrInst *Gep1 = GetElementPtrInst::Create(I32Ty, PtrVecA, C2xi32b); + GetElementPtrInst *Gep2 = GetElementPtrInst::Create(I32Ty, PtrVecB, C2xi32a); + GetElementPtrInst *Gep3 = GetElementPtrInst::Create(I32Ty, PtrVecB, C2xi32b); CastInst *BTC0 = new BitCastInst(Gep0, V2xi8PTy); CastInst *BTC1 = new BitCastInst(Gep1, V2xi8PTy); @@ -252,19 +342,19 @@ TEST(InstructionsTest, VectorGep) { int64_t Offset; DataLayout TD("e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3" - "2:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80" + "2:32:32-f64:64:64-v64:64:64-v128:128:128-a:0:64-s:64:64-f80" ":128:128-n8:16:32:64-S128"); // Make sure we don't crash - GetPointerBaseWithConstantOffset(Gep0, Offset, &TD); - GetPointerBaseWithConstantOffset(Gep1, Offset, &TD); - GetPointerBaseWithConstantOffset(Gep2, Offset, &TD); - GetPointerBaseWithConstantOffset(Gep3, Offset, &TD); + GetPointerBaseWithConstantOffset(Gep0, Offset, TD); + GetPointerBaseWithConstantOffset(Gep1, Offset, TD); + GetPointerBaseWithConstantOffset(Gep2, Offset, TD); + GetPointerBaseWithConstantOffset(Gep3, Offset, TD); // Gep of Geps - GetElementPtrInst *GepII0 = GetElementPtrInst::Create(Gep0, C2xi32b); - GetElementPtrInst *GepII1 = GetElementPtrInst::Create(Gep1, C2xi32a); - GetElementPtrInst *GepII2 = GetElementPtrInst::Create(Gep2, C2xi32b); - GetElementPtrInst *GepII3 = GetElementPtrInst::Create(Gep3, C2xi32a); + GetElementPtrInst *GepII0 = GetElementPtrInst::Create(I32Ty, Gep0, C2xi32b); + GetElementPtrInst *GepII1 = GetElementPtrInst::Create(I32Ty, Gep1, C2xi32a); + GetElementPtrInst *GepII2 = GetElementPtrInst::Create(I32Ty, Gep2, C2xi32b); + GetElementPtrInst *GepII3 = GetElementPtrInst::Create(I32Ty, Gep3, C2xi32a); EXPECT_EQ(GepII0->getNumIndices(), 1u); EXPECT_EQ(GepII1->getNumIndices(), 1u); @@ -318,6 +408,7 @@ TEST(InstructionsTest, FPMathOperator) { TEST(InstructionsTest, isEliminableCastPair) { LLVMContext &C(getGlobalContext()); + Type* Int16Ty = Type::getInt16Ty(C); Type* Int32Ty = Type::getInt32Ty(C); Type* Int64Ty = Type::getInt64Ty(C); Type* Int64PtrTy = Type::getInt64PtrTy(C); @@ -326,30 +417,108 @@ TEST(InstructionsTest, isEliminableCastPair) { EXPECT_EQ(CastInst::isEliminableCastPair(CastInst::PtrToInt, CastInst::IntToPtr, Int64PtrTy, Int64Ty, Int64PtrTy, - Int32Ty, 0, Int32Ty), + Int32Ty, nullptr, Int32Ty), CastInst::BitCast); - // Source and destination pointers have different sizes -> fail. + // Source and destination have unknown sizes, but the same address space and + // the intermediate int is the maximum pointer size -> bitcast EXPECT_EQ(CastInst::isEliminableCastPair(CastInst::PtrToInt, CastInst::IntToPtr, Int64PtrTy, Int64Ty, Int64PtrTy, - Int32Ty, 0, Int64Ty), + nullptr, nullptr, nullptr), + CastInst::BitCast); + + // Source and destination have unknown sizes, but the same address space and + // the intermediate int is not the maximum pointer size -> nothing + EXPECT_EQ(CastInst::isEliminableCastPair(CastInst::PtrToInt, + CastInst::IntToPtr, + Int64PtrTy, Int32Ty, Int64PtrTy, + nullptr, nullptr, nullptr), 0U); // Middle pointer big enough -> bitcast. EXPECT_EQ(CastInst::isEliminableCastPair(CastInst::IntToPtr, CastInst::PtrToInt, Int64Ty, Int64PtrTy, Int64Ty, - 0, Int64Ty, 0), + nullptr, Int64Ty, nullptr), CastInst::BitCast); // Middle pointer too small -> fail. EXPECT_EQ(CastInst::isEliminableCastPair(CastInst::IntToPtr, CastInst::PtrToInt, Int64Ty, Int64PtrTy, Int64Ty, - 0, Int32Ty, 0), + nullptr, Int32Ty, nullptr), 0U); + + // Test that we don't eliminate bitcasts between different address spaces, + // or if we don't have available pointer size information. + DataLayout DL("e-p:32:32:32-p1:16:16:16-p2:64:64:64-i1:8:8-i8:8:8-i16:16:16" + "-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64" + "-v128:128:128-a:0:64-s:64:64-f80:128:128-n8:16:32:64-S128"); + + Type* Int64PtrTyAS1 = Type::getInt64PtrTy(C, 1); + Type* Int64PtrTyAS2 = Type::getInt64PtrTy(C, 2); + + IntegerType *Int16SizePtr = DL.getIntPtrType(C, 1); + IntegerType *Int64SizePtr = DL.getIntPtrType(C, 2); + + // Cannot simplify inttoptr, addrspacecast + EXPECT_EQ(CastInst::isEliminableCastPair(CastInst::IntToPtr, + CastInst::AddrSpaceCast, + Int16Ty, Int64PtrTyAS1, Int64PtrTyAS2, + nullptr, Int16SizePtr, Int64SizePtr), + 0U); + + // Cannot simplify addrspacecast, ptrtoint + EXPECT_EQ(CastInst::isEliminableCastPair(CastInst::AddrSpaceCast, + CastInst::PtrToInt, + Int64PtrTyAS1, Int64PtrTyAS2, Int16Ty, + Int64SizePtr, Int16SizePtr, nullptr), + 0U); + + // Pass since the bitcast address spaces are the same + EXPECT_EQ(CastInst::isEliminableCastPair(CastInst::IntToPtr, + CastInst::BitCast, + Int16Ty, Int64PtrTyAS1, Int64PtrTyAS1, + nullptr, nullptr, nullptr), + CastInst::IntToPtr); + +} + +TEST(InstructionsTest, CloneCall) { + LLVMContext &C(getGlobalContext()); + Type *Int32Ty = Type::getInt32Ty(C); + Type *ArgTys[] = {Int32Ty, Int32Ty, Int32Ty}; + Type *FnTy = FunctionType::get(Int32Ty, ArgTys, /*isVarArg=*/false); + Value *Callee = Constant::getNullValue(FnTy->getPointerTo()); + Value *Args[] = { + ConstantInt::get(Int32Ty, 1), + ConstantInt::get(Int32Ty, 2), + ConstantInt::get(Int32Ty, 3) + }; + std::unique_ptr Call(CallInst::Create(Callee, Args, "result")); + + // Test cloning the tail call kind. + CallInst::TailCallKind Kinds[] = {CallInst::TCK_None, CallInst::TCK_Tail, + CallInst::TCK_MustTail}; + for (CallInst::TailCallKind TCK : Kinds) { + Call->setTailCallKind(TCK); + std::unique_ptr Clone(cast(Call->clone())); + EXPECT_EQ(Call->getTailCallKind(), Clone->getTailCallKind()); + } + Call->setTailCallKind(CallInst::TCK_None); + + // Test cloning an attribute. + { + AttrBuilder AB; + AB.addAttribute(Attribute::ReadOnly); + Call->setAttributes(AttributeSet::get(C, AttributeSet::FunctionIndex, AB)); + std::unique_ptr Clone(cast(Call->clone())); + EXPECT_TRUE(Clone->onlyReadsMemory()); + } } } // end anonymous namespace } // end namespace llvm + +