//===- llvm/unittest/IR/ConstantsTest.cpp - Constants unit tests ----------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "llvm/IR/Constants.h" #include "llvm/IR/DerivedTypes.h" #include "llvm/IR/InstrTypes.h" #include "llvm/IR/Instruction.h" #include "llvm/IR/LLVMContext.h" #include "llvm/IR/Module.h" #include "gtest/gtest.h" namespace llvm { namespace { TEST(ConstantsTest, Integer_i1) { IntegerType* Int1 = IntegerType::get(getGlobalContext(), 1); Constant* One = ConstantInt::get(Int1, 1, true); Constant* Zero = ConstantInt::get(Int1, 0); Constant* NegOne = ConstantInt::get(Int1, static_cast(-1), true); EXPECT_EQ(NegOne, ConstantInt::getSigned(Int1, -1)); Constant* Undef = UndefValue::get(Int1); // Input: @b = constant i1 add(i1 1 , i1 1) // Output: @b = constant i1 false EXPECT_EQ(Zero, ConstantExpr::getAdd(One, One)); // @c = constant i1 add(i1 -1, i1 1) // @c = constant i1 false EXPECT_EQ(Zero, ConstantExpr::getAdd(NegOne, One)); // @d = constant i1 add(i1 -1, i1 -1) // @d = constant i1 false EXPECT_EQ(Zero, ConstantExpr::getAdd(NegOne, NegOne)); // @e = constant i1 sub(i1 -1, i1 1) // @e = constant i1 false EXPECT_EQ(Zero, ConstantExpr::getSub(NegOne, One)); // @f = constant i1 sub(i1 1 , i1 -1) // @f = constant i1 false EXPECT_EQ(Zero, ConstantExpr::getSub(One, NegOne)); // @g = constant i1 sub(i1 1 , i1 1) // @g = constant i1 false EXPECT_EQ(Zero, ConstantExpr::getSub(One, One)); // @h = constant i1 shl(i1 1 , i1 1) ; undefined // @h = constant i1 undef EXPECT_EQ(Undef, ConstantExpr::getShl(One, One)); // @i = constant i1 shl(i1 1 , i1 0) // @i = constant i1 true EXPECT_EQ(One, ConstantExpr::getShl(One, Zero)); // @j = constant i1 lshr(i1 1, i1 1) ; undefined // @j = constant i1 undef EXPECT_EQ(Undef, ConstantExpr::getLShr(One, One)); // @m = constant i1 ashr(i1 1, i1 1) ; undefined // @m = constant i1 undef EXPECT_EQ(Undef, ConstantExpr::getAShr(One, One)); // @n = constant i1 mul(i1 -1, i1 1) // @n = constant i1 true EXPECT_EQ(One, ConstantExpr::getMul(NegOne, One)); // @o = constant i1 sdiv(i1 -1, i1 1) ; overflow // @o = constant i1 true EXPECT_EQ(One, ConstantExpr::getSDiv(NegOne, One)); // @p = constant i1 sdiv(i1 1 , i1 -1); overflow // @p = constant i1 true EXPECT_EQ(One, ConstantExpr::getSDiv(One, NegOne)); // @q = constant i1 udiv(i1 -1, i1 1) // @q = constant i1 true EXPECT_EQ(One, ConstantExpr::getUDiv(NegOne, One)); // @r = constant i1 udiv(i1 1, i1 -1) // @r = constant i1 true EXPECT_EQ(One, ConstantExpr::getUDiv(One, NegOne)); // @s = constant i1 srem(i1 -1, i1 1) ; overflow // @s = constant i1 false EXPECT_EQ(Zero, ConstantExpr::getSRem(NegOne, One)); // @t = constant i1 urem(i1 -1, i1 1) // @t = constant i1 false EXPECT_EQ(Zero, ConstantExpr::getURem(NegOne, One)); // @u = constant i1 srem(i1 1, i1 -1) ; overflow // @u = constant i1 false EXPECT_EQ(Zero, ConstantExpr::getSRem(One, NegOne)); } TEST(ConstantsTest, IntSigns) { IntegerType* Int8Ty = Type::getInt8Ty(getGlobalContext()); EXPECT_EQ(100, ConstantInt::get(Int8Ty, 100, false)->getSExtValue()); EXPECT_EQ(100, ConstantInt::get(Int8Ty, 100, true)->getSExtValue()); EXPECT_EQ(100, ConstantInt::getSigned(Int8Ty, 100)->getSExtValue()); EXPECT_EQ(-50, ConstantInt::get(Int8Ty, 206)->getSExtValue()); EXPECT_EQ(-50, ConstantInt::getSigned(Int8Ty, -50)->getSExtValue()); EXPECT_EQ(206U, ConstantInt::getSigned(Int8Ty, -50)->getZExtValue()); // Overflow is handled by truncation. EXPECT_EQ(0x3b, ConstantInt::get(Int8Ty, 0x13b)->getSExtValue()); } TEST(ConstantsTest, FP128Test) { Type *FP128Ty = Type::getFP128Ty(getGlobalContext()); IntegerType *Int128Ty = Type::getIntNTy(getGlobalContext(), 128); Constant *Zero128 = Constant::getNullValue(Int128Ty); Constant *X = ConstantExpr::getUIToFP(Zero128, FP128Ty); EXPECT_TRUE(isa(X)); } TEST(ConstantsTest, PointerCast) { LLVMContext &C(getGlobalContext()); Type *Int8PtrTy = Type::getInt8PtrTy(C); Type *Int32PtrTy = Type::getInt32PtrTy(C); Type *Int64Ty = Type::getInt64Ty(C); VectorType *Int8PtrVecTy = VectorType::get(Int8PtrTy, 4); VectorType *Int32PtrVecTy = VectorType::get(Int32PtrTy, 4); VectorType *Int64VecTy = VectorType::get(Int64Ty, 4); // ptrtoint i8* to i64 EXPECT_EQ(Constant::getNullValue(Int64Ty), ConstantExpr::getPointerCast( Constant::getNullValue(Int8PtrTy), Int64Ty)); // bitcast i8* to i32* EXPECT_EQ(Constant::getNullValue(Int32PtrTy), ConstantExpr::getPointerCast( Constant::getNullValue(Int8PtrTy), Int32PtrTy)); // ptrtoint <4 x i8*> to <4 x i64> EXPECT_EQ(Constant::getNullValue(Int64VecTy), ConstantExpr::getPointerCast( Constant::getNullValue(Int8PtrVecTy), Int64VecTy)); // bitcast <4 x i8*> to <4 x i32*> EXPECT_EQ(Constant::getNullValue(Int32PtrVecTy), ConstantExpr::getPointerCast( Constant::getNullValue(Int8PtrVecTy), Int32PtrVecTy)); } #define CHECK(x, y) { \ std::string __s; \ raw_string_ostream __o(__s); \ Instruction *__I = cast(x)->getAsInstruction(); \ __I->print(__o); \ delete __I; \ __o.flush(); \ EXPECT_EQ(std::string(" = " y), __s); \ } TEST(ConstantsTest, AsInstructionsTest) { OwningPtr M(new Module("MyModule", getGlobalContext())); Type *Int64Ty = Type::getInt64Ty(getGlobalContext()); Type *Int32Ty = Type::getInt32Ty(getGlobalContext()); Type *Int16Ty = Type::getInt16Ty(getGlobalContext()); Type *Int1Ty = Type::getInt1Ty(getGlobalContext()); Type *FloatTy = Type::getFloatTy(getGlobalContext()); Type *DoubleTy = Type::getDoubleTy(getGlobalContext()); Constant *Global = M->getOrInsertGlobal("dummy", PointerType::getUnqual(Int32Ty)); Constant *Global2 = M->getOrInsertGlobal("dummy2", PointerType::getUnqual(Int32Ty)); Constant *P0 = ConstantExpr::getPtrToInt(Global, Int32Ty); Constant *P1 = ConstantExpr::getUIToFP(P0, FloatTy); Constant *P2 = ConstantExpr::getUIToFP(P0, DoubleTy); Constant *P3 = ConstantExpr::getTrunc(P0, Int1Ty); Constant *P4 = ConstantExpr::getPtrToInt(Global2, Int32Ty); Constant *P5 = ConstantExpr::getUIToFP(P4, FloatTy); Constant *P6 = ConstantExpr::getBitCast(P4, VectorType::get(Int16Ty, 2)); Constant *One = ConstantInt::get(Int32Ty, 1); #define P0STR "ptrtoint (i32** @dummy to i32)" #define P1STR "uitofp (i32 ptrtoint (i32** @dummy to i32) to float)" #define P2STR "uitofp (i32 ptrtoint (i32** @dummy to i32) to double)" #define P3STR "ptrtoint (i32** @dummy to i1)" #define P4STR "ptrtoint (i32** @dummy2 to i32)" #define P5STR "uitofp (i32 ptrtoint (i32** @dummy2 to i32) to float)" #define P6STR "bitcast (i32 ptrtoint (i32** @dummy2 to i32) to <2 x i16>)" CHECK(ConstantExpr::getNeg(P0), "sub i32 0, " P0STR); CHECK(ConstantExpr::getFNeg(P1), "fsub float -0.000000e+00, " P1STR); CHECK(ConstantExpr::getNot(P0), "xor i32 " P0STR ", -1"); CHECK(ConstantExpr::getAdd(P0, P0), "add i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getAdd(P0, P0, false, true), "add nsw i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getAdd(P0, P0, true, true), "add nuw nsw i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getFAdd(P1, P1), "fadd float " P1STR ", " P1STR); CHECK(ConstantExpr::getSub(P0, P0), "sub i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getFSub(P1, P1), "fsub float " P1STR ", " P1STR); CHECK(ConstantExpr::getMul(P0, P0), "mul i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getFMul(P1, P1), "fmul float " P1STR ", " P1STR); CHECK(ConstantExpr::getUDiv(P0, P0), "udiv i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getSDiv(P0, P0), "sdiv i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getFDiv(P1, P1), "fdiv float " P1STR ", " P1STR); CHECK(ConstantExpr::getURem(P0, P0), "urem i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getSRem(P0, P0), "srem i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getFRem(P1, P1), "frem float " P1STR ", " P1STR); CHECK(ConstantExpr::getAnd(P0, P0), "and i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getOr(P0, P0), "or i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getXor(P0, P0), "xor i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getShl(P0, P0), "shl i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getShl(P0, P0, true), "shl nuw i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getShl(P0, P0, false, true), "shl nsw i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getLShr(P0, P0, false), "lshr i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getLShr(P0, P0, true), "lshr exact i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getAShr(P0, P0, false), "ashr i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getAShr(P0, P0, true), "ashr exact i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getSExt(P0, Int64Ty), "sext i32 " P0STR " to i64"); CHECK(ConstantExpr::getZExt(P0, Int64Ty), "zext i32 " P0STR " to i64"); CHECK(ConstantExpr::getFPTrunc(P2, FloatTy), "fptrunc double " P2STR " to float"); CHECK(ConstantExpr::getFPExtend(P1, DoubleTy), "fpext float " P1STR " to double"); CHECK(ConstantExpr::getExactUDiv(P0, P0), "udiv exact i32 " P0STR ", " P0STR); CHECK(ConstantExpr::getSelect(P3, P0, P4), "select i1 " P3STR ", i32 " P0STR ", i32 " P4STR); CHECK(ConstantExpr::getICmp(CmpInst::ICMP_EQ, P0, P4), "icmp eq i32 " P0STR ", " P4STR); CHECK(ConstantExpr::getFCmp(CmpInst::FCMP_ULT, P1, P5), "fcmp ult float " P1STR ", " P5STR); std::vector V; V.push_back(One); // FIXME: getGetElementPtr() actually creates an inbounds ConstantGEP, // not a normal one! //CHECK(ConstantExpr::getGetElementPtr(Global, V, false), // "getelementptr i32** @dummy, i32 1"); CHECK(ConstantExpr::getInBoundsGetElementPtr(Global, V), "getelementptr inbounds i32** @dummy, i32 1"); CHECK(ConstantExpr::getExtractElement(P6, One), "extractelement <2 x i16> " P6STR ", i32 1"); } #undef CHECK } // end anonymous namespace } // end namespace llvm