| //===- llvm/unittest/Support/ConstantRangeTest.cpp - ConstantRange tests --===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/Support/ConstantRange.h" |
| #include "llvm/Instructions.h" |
| |
| #include "gtest/gtest.h" |
| |
| using namespace llvm; |
| |
| namespace { |
| |
| class ConstantRangeTest : public ::testing::Test { |
| protected: |
| static ConstantRange Full; |
| static ConstantRange Empty; |
| static ConstantRange One; |
| static ConstantRange Some; |
| static ConstantRange Wrap; |
| }; |
| |
| ConstantRange ConstantRangeTest::Full(16); |
| ConstantRange ConstantRangeTest::Empty(16, false); |
| ConstantRange ConstantRangeTest::One(APInt(16, 0xa)); |
| ConstantRange ConstantRangeTest::Some(APInt(16, 0xa), APInt(16, 0xaaa)); |
| ConstantRange ConstantRangeTest::Wrap(APInt(16, 0xaaa), APInt(16, 0xa)); |
| |
| TEST_F(ConstantRangeTest, Basics) { |
| EXPECT_TRUE(Full.isFullSet()); |
| EXPECT_FALSE(Full.isEmptySet()); |
| EXPECT_TRUE(Full.inverse().isEmptySet()); |
| EXPECT_FALSE(Full.isWrappedSet()); |
| EXPECT_TRUE(Full.contains(APInt(16, 0x0))); |
| EXPECT_TRUE(Full.contains(APInt(16, 0x9))); |
| EXPECT_TRUE(Full.contains(APInt(16, 0xa))); |
| EXPECT_TRUE(Full.contains(APInt(16, 0xaa9))); |
| EXPECT_TRUE(Full.contains(APInt(16, 0xaaa))); |
| |
| EXPECT_FALSE(Empty.isFullSet()); |
| EXPECT_TRUE(Empty.isEmptySet()); |
| EXPECT_TRUE(Empty.inverse().isFullSet()); |
| EXPECT_FALSE(Empty.isWrappedSet()); |
| EXPECT_FALSE(Empty.contains(APInt(16, 0x0))); |
| EXPECT_FALSE(Empty.contains(APInt(16, 0x9))); |
| EXPECT_FALSE(Empty.contains(APInt(16, 0xa))); |
| EXPECT_FALSE(Empty.contains(APInt(16, 0xaa9))); |
| EXPECT_FALSE(Empty.contains(APInt(16, 0xaaa))); |
| |
| EXPECT_FALSE(One.isFullSet()); |
| EXPECT_FALSE(One.isEmptySet()); |
| EXPECT_FALSE(One.isWrappedSet()); |
| EXPECT_FALSE(One.contains(APInt(16, 0x0))); |
| EXPECT_FALSE(One.contains(APInt(16, 0x9))); |
| EXPECT_TRUE(One.contains(APInt(16, 0xa))); |
| EXPECT_FALSE(One.contains(APInt(16, 0xaa9))); |
| EXPECT_FALSE(One.contains(APInt(16, 0xaaa))); |
| EXPECT_FALSE(One.inverse().contains(APInt(16, 0xa))); |
| |
| EXPECT_FALSE(Some.isFullSet()); |
| EXPECT_FALSE(Some.isEmptySet()); |
| EXPECT_FALSE(Some.isWrappedSet()); |
| EXPECT_FALSE(Some.contains(APInt(16, 0x0))); |
| EXPECT_FALSE(Some.contains(APInt(16, 0x9))); |
| EXPECT_TRUE(Some.contains(APInt(16, 0xa))); |
| EXPECT_TRUE(Some.contains(APInt(16, 0xaa9))); |
| EXPECT_FALSE(Some.contains(APInt(16, 0xaaa))); |
| |
| EXPECT_FALSE(Wrap.isFullSet()); |
| EXPECT_FALSE(Wrap.isEmptySet()); |
| EXPECT_TRUE(Wrap.isWrappedSet()); |
| EXPECT_TRUE(Wrap.contains(APInt(16, 0x0))); |
| EXPECT_TRUE(Wrap.contains(APInt(16, 0x9))); |
| EXPECT_FALSE(Wrap.contains(APInt(16, 0xa))); |
| EXPECT_FALSE(Wrap.contains(APInt(16, 0xaa9))); |
| EXPECT_TRUE(Wrap.contains(APInt(16, 0xaaa))); |
| } |
| |
| TEST_F(ConstantRangeTest, Equality) { |
| EXPECT_EQ(Full, Full); |
| EXPECT_EQ(Empty, Empty); |
| EXPECT_EQ(One, One); |
| EXPECT_EQ(Some, Some); |
| EXPECT_EQ(Wrap, Wrap); |
| EXPECT_NE(Full, Empty); |
| EXPECT_NE(Full, One); |
| EXPECT_NE(Full, Some); |
| EXPECT_NE(Full, Wrap); |
| EXPECT_NE(Empty, One); |
| EXPECT_NE(Empty, Some); |
| EXPECT_NE(Empty, Wrap); |
| EXPECT_NE(One, Some); |
| EXPECT_NE(One, Wrap); |
| EXPECT_NE(Some, Wrap); |
| } |
| |
| TEST_F(ConstantRangeTest, SingleElement) { |
| EXPECT_EQ(Full.getSingleElement(), static_cast<APInt *>(NULL)); |
| EXPECT_EQ(Empty.getSingleElement(), static_cast<APInt *>(NULL)); |
| EXPECT_EQ(*One.getSingleElement(), APInt(16, 0xa)); |
| EXPECT_EQ(Some.getSingleElement(), static_cast<APInt *>(NULL)); |
| EXPECT_EQ(Wrap.getSingleElement(), static_cast<APInt *>(NULL)); |
| |
| EXPECT_FALSE(Full.isSingleElement()); |
| EXPECT_FALSE(Empty.isSingleElement()); |
| EXPECT_TRUE(One.isSingleElement()); |
| EXPECT_FALSE(Some.isSingleElement()); |
| EXPECT_FALSE(Wrap.isSingleElement()); |
| } |
| |
| TEST_F(ConstantRangeTest, GetSetSize) { |
| EXPECT_EQ(Full.getSetSize(), APInt(16, 0)); |
| EXPECT_EQ(Empty.getSetSize(), APInt(16, 0)); |
| EXPECT_EQ(One.getSetSize(), APInt(16, 1)); |
| EXPECT_EQ(Some.getSetSize(), APInt(16, 0xaa0)); |
| EXPECT_EQ(Wrap.getSetSize(), APInt(16, 0x10000 - 0xaa0)); |
| } |
| |
| TEST_F(ConstantRangeTest, GetMinsAndMaxes) { |
| EXPECT_EQ(Full.getUnsignedMax(), APInt(16, UINT16_MAX)); |
| EXPECT_EQ(One.getUnsignedMax(), APInt(16, 0xa)); |
| EXPECT_EQ(Some.getUnsignedMax(), APInt(16, 0xaa9)); |
| EXPECT_EQ(Wrap.getUnsignedMax(), APInt(16, UINT16_MAX)); |
| |
| EXPECT_EQ(Full.getUnsignedMin(), APInt(16, 0)); |
| EXPECT_EQ(One.getUnsignedMin(), APInt(16, 0xa)); |
| EXPECT_EQ(Some.getUnsignedMin(), APInt(16, 0xa)); |
| EXPECT_EQ(Wrap.getUnsignedMin(), APInt(16, 0)); |
| |
| EXPECT_EQ(Full.getSignedMax(), APInt(16, INT16_MAX)); |
| EXPECT_EQ(One.getSignedMax(), APInt(16, 0xa)); |
| EXPECT_EQ(Some.getSignedMax(), APInt(16, 0xaa9)); |
| EXPECT_EQ(Wrap.getSignedMax(), APInt(16, INT16_MAX)); |
| |
| EXPECT_EQ(Full.getSignedMin(), APInt(16, (uint64_t)INT16_MIN)); |
| EXPECT_EQ(One.getSignedMin(), APInt(16, 0xa)); |
| EXPECT_EQ(Some.getSignedMin(), APInt(16, 0xa)); |
| EXPECT_EQ(Wrap.getSignedMin(), APInt(16, (uint64_t)INT16_MIN)); |
| |
| // Found by Klee |
| EXPECT_EQ(ConstantRange(APInt(4, 7), APInt(4, 0)).getSignedMax(), |
| APInt(4, 7)); |
| } |
| |
| TEST_F(ConstantRangeTest, SignWrapped) { |
| EXPECT_TRUE(Full.isSignWrappedSet()); |
| EXPECT_FALSE(Empty.isSignWrappedSet()); |
| EXPECT_FALSE(One.isSignWrappedSet()); |
| EXPECT_FALSE(Some.isSignWrappedSet()); |
| EXPECT_TRUE(Wrap.isSignWrappedSet()); |
| |
| EXPECT_FALSE(ConstantRange(APInt(8, 127), APInt(8, 128)).isSignWrappedSet()); |
| EXPECT_TRUE(ConstantRange(APInt(8, 127), APInt(8, 129)).isSignWrappedSet()); |
| EXPECT_FALSE(ConstantRange(APInt(8, 128), APInt(8, 129)).isSignWrappedSet()); |
| EXPECT_TRUE(ConstantRange(APInt(8, 10), APInt(8, 9)).isSignWrappedSet()); |
| EXPECT_TRUE(ConstantRange(APInt(8, 10), APInt(8, 250)).isSignWrappedSet()); |
| EXPECT_FALSE(ConstantRange(APInt(8, 250), APInt(8, 10)).isSignWrappedSet()); |
| EXPECT_FALSE(ConstantRange(APInt(8, 250), APInt(8, 251)).isSignWrappedSet()); |
| } |
| |
| TEST_F(ConstantRangeTest, Trunc) { |
| ConstantRange TFull = Full.truncate(10); |
| ConstantRange TEmpty = Empty.truncate(10); |
| ConstantRange TOne = One.truncate(10); |
| ConstantRange TSome = Some.truncate(10); |
| ConstantRange TWrap = Wrap.truncate(10); |
| EXPECT_TRUE(TFull.isFullSet()); |
| EXPECT_TRUE(TEmpty.isEmptySet()); |
| EXPECT_EQ(TOne, ConstantRange(One.getLower().trunc(10), |
| One.getUpper().trunc(10))); |
| EXPECT_TRUE(TSome.isFullSet()); |
| } |
| |
| TEST_F(ConstantRangeTest, ZExt) { |
| ConstantRange ZFull = Full.zeroExtend(20); |
| ConstantRange ZEmpty = Empty.zeroExtend(20); |
| ConstantRange ZOne = One.zeroExtend(20); |
| ConstantRange ZSome = Some.zeroExtend(20); |
| ConstantRange ZWrap = Wrap.zeroExtend(20); |
| EXPECT_EQ(ZFull, ConstantRange(APInt(20, 0), APInt(20, 0x10000))); |
| EXPECT_TRUE(ZEmpty.isEmptySet()); |
| EXPECT_EQ(ZOne, ConstantRange(One.getLower().zext(20), |
| One.getUpper().zext(20))); |
| EXPECT_EQ(ZSome, ConstantRange(Some.getLower().zext(20), |
| Some.getUpper().zext(20))); |
| EXPECT_EQ(ZWrap, ConstantRange(APInt(20, 0), APInt(20, 0x10000))); |
| } |
| |
| TEST_F(ConstantRangeTest, SExt) { |
| ConstantRange SFull = Full.signExtend(20); |
| ConstantRange SEmpty = Empty.signExtend(20); |
| ConstantRange SOne = One.signExtend(20); |
| ConstantRange SSome = Some.signExtend(20); |
| ConstantRange SWrap = Wrap.signExtend(20); |
| EXPECT_EQ(SFull, ConstantRange(APInt(20, (uint64_t)INT16_MIN, true), |
| APInt(20, INT16_MAX + 1, true))); |
| EXPECT_TRUE(SEmpty.isEmptySet()); |
| EXPECT_EQ(SOne, ConstantRange(One.getLower().sext(20), |
| One.getUpper().sext(20))); |
| EXPECT_EQ(SSome, ConstantRange(Some.getLower().sext(20), |
| Some.getUpper().sext(20))); |
| EXPECT_EQ(SWrap, ConstantRange(APInt(20, (uint64_t)INT16_MIN, true), |
| APInt(20, INT16_MAX + 1, true))); |
| |
| EXPECT_EQ(ConstantRange(APInt(8, 120), APInt(8, 140)).signExtend(16), |
| ConstantRange(APInt(16, -128), APInt(16, 128))); |
| } |
| |
| TEST_F(ConstantRangeTest, IntersectWith) { |
| EXPECT_EQ(Empty.intersectWith(Full), Empty); |
| EXPECT_EQ(Empty.intersectWith(Empty), Empty); |
| EXPECT_EQ(Empty.intersectWith(One), Empty); |
| EXPECT_EQ(Empty.intersectWith(Some), Empty); |
| EXPECT_EQ(Empty.intersectWith(Wrap), Empty); |
| EXPECT_EQ(Full.intersectWith(Full), Full); |
| EXPECT_EQ(Some.intersectWith(Some), Some); |
| EXPECT_EQ(Some.intersectWith(One), One); |
| EXPECT_EQ(Full.intersectWith(One), One); |
| EXPECT_EQ(Full.intersectWith(Some), Some); |
| EXPECT_EQ(Some.intersectWith(Wrap), Empty); |
| EXPECT_EQ(One.intersectWith(Wrap), Empty); |
| EXPECT_EQ(One.intersectWith(Wrap), Wrap.intersectWith(One)); |
| |
| // Klee generated testcase from PR4545. |
| // The intersection of i16 [4, 2) and [6, 5) is disjoint, looking like |
| // 01..4.6789ABCDEF where the dots represent values not in the intersection. |
| ConstantRange LHS(APInt(16, 4), APInt(16, 2)); |
| ConstantRange RHS(APInt(16, 6), APInt(16, 5)); |
| EXPECT_TRUE(LHS.intersectWith(RHS) == LHS); |
| } |
| |
| TEST_F(ConstantRangeTest, UnionWith) { |
| EXPECT_EQ(Wrap.unionWith(One), |
| ConstantRange(APInt(16, 0xaaa), APInt(16, 0xb))); |
| EXPECT_EQ(One.unionWith(Wrap), Wrap.unionWith(One)); |
| EXPECT_EQ(Empty.unionWith(Empty), Empty); |
| EXPECT_EQ(Full.unionWith(Full), Full); |
| EXPECT_EQ(Some.unionWith(Wrap), Full); |
| |
| // PR4545 |
| EXPECT_EQ(ConstantRange(APInt(16, 14), APInt(16, 1)).unionWith( |
| ConstantRange(APInt(16, 0), APInt(16, 8))), |
| ConstantRange(APInt(16, 14), APInt(16, 8))); |
| EXPECT_EQ(ConstantRange(APInt(16, 6), APInt(16, 4)).unionWith( |
| ConstantRange(APInt(16, 4), APInt(16, 0))), |
| ConstantRange(16)); |
| EXPECT_EQ(ConstantRange(APInt(16, 1), APInt(16, 0)).unionWith( |
| ConstantRange(APInt(16, 2), APInt(16, 1))), |
| ConstantRange(16)); |
| } |
| |
| TEST_F(ConstantRangeTest, SubtractAPInt) { |
| EXPECT_EQ(Full.subtract(APInt(16, 4)), Full); |
| EXPECT_EQ(Empty.subtract(APInt(16, 4)), Empty); |
| EXPECT_EQ(Some.subtract(APInt(16, 4)), |
| ConstantRange(APInt(16, 0x6), APInt(16, 0xaa6))); |
| EXPECT_EQ(Wrap.subtract(APInt(16, 4)), |
| ConstantRange(APInt(16, 0xaa6), APInt(16, 0x6))); |
| EXPECT_EQ(One.subtract(APInt(16, 4)), |
| ConstantRange(APInt(16, 0x6))); |
| } |
| |
| TEST_F(ConstantRangeTest, Add) { |
| EXPECT_EQ(Full.add(APInt(16, 4)), Full); |
| EXPECT_EQ(Full.add(Full), Full); |
| EXPECT_EQ(Full.add(Empty), Empty); |
| EXPECT_EQ(Full.add(One), Full); |
| EXPECT_EQ(Full.add(Some), Full); |
| EXPECT_EQ(Full.add(Wrap), Full); |
| EXPECT_EQ(Empty.add(Empty), Empty); |
| EXPECT_EQ(Empty.add(One), Empty); |
| EXPECT_EQ(Empty.add(Some), Empty); |
| EXPECT_EQ(Empty.add(Wrap), Empty); |
| EXPECT_EQ(Empty.add(APInt(16, 4)), Empty); |
| EXPECT_EQ(Some.add(APInt(16, 4)), |
| ConstantRange(APInt(16, 0xe), APInt(16, 0xaae))); |
| EXPECT_EQ(Wrap.add(APInt(16, 4)), |
| ConstantRange(APInt(16, 0xaae), APInt(16, 0xe))); |
| EXPECT_EQ(One.add(APInt(16, 4)), |
| ConstantRange(APInt(16, 0xe))); |
| } |
| |
| TEST_F(ConstantRangeTest, Sub) { |
| EXPECT_EQ(Full.sub(APInt(16, 4)), Full); |
| EXPECT_EQ(Full.sub(Full), Full); |
| EXPECT_EQ(Full.sub(Empty), Empty); |
| EXPECT_EQ(Full.sub(One), Full); |
| EXPECT_EQ(Full.sub(Some), Full); |
| EXPECT_EQ(Full.sub(Wrap), Full); |
| EXPECT_EQ(Empty.sub(Empty), Empty); |
| EXPECT_EQ(Empty.sub(One), Empty); |
| EXPECT_EQ(Empty.sub(Some), Empty); |
| EXPECT_EQ(Empty.sub(Wrap), Empty); |
| EXPECT_EQ(Empty.sub(APInt(16, 4)), Empty); |
| EXPECT_EQ(Some.sub(APInt(16, 4)), |
| ConstantRange(APInt(16, 0x6), APInt(16, 0xaa6))); |
| EXPECT_EQ(Some.sub(Some), |
| ConstantRange(APInt(16, 0xf561), APInt(16, 0xaa0))); |
| EXPECT_EQ(Wrap.sub(APInt(16, 4)), |
| ConstantRange(APInt(16, 0xaa6), APInt(16, 0x6))); |
| EXPECT_EQ(One.sub(APInt(16, 4)), |
| ConstantRange(APInt(16, 0x6))); |
| } |
| |
| TEST_F(ConstantRangeTest, Multiply) { |
| EXPECT_EQ(Full.multiply(Full), Full); |
| EXPECT_EQ(Full.multiply(Empty), Empty); |
| EXPECT_EQ(Full.multiply(One), Full); |
| EXPECT_EQ(Full.multiply(Some), Full); |
| EXPECT_EQ(Full.multiply(Wrap), Full); |
| EXPECT_EQ(Empty.multiply(Empty), Empty); |
| EXPECT_EQ(Empty.multiply(One), Empty); |
| EXPECT_EQ(Empty.multiply(Some), Empty); |
| EXPECT_EQ(Empty.multiply(Wrap), Empty); |
| EXPECT_EQ(One.multiply(One), ConstantRange(APInt(16, 0xa*0xa), |
| APInt(16, 0xa*0xa + 1))); |
| EXPECT_EQ(One.multiply(Some), ConstantRange(APInt(16, 0xa*0xa), |
| APInt(16, 0xa*0xaa9 + 1))); |
| EXPECT_EQ(One.multiply(Wrap), Full); |
| EXPECT_EQ(Some.multiply(Some), Full); |
| EXPECT_EQ(Some.multiply(Wrap), Full); |
| EXPECT_EQ(Wrap.multiply(Wrap), Full); |
| |
| // http://llvm.org/PR4545 |
| EXPECT_EQ(ConstantRange(APInt(4, 1), APInt(4, 6)).multiply( |
| ConstantRange(APInt(4, 6), APInt(4, 2))), |
| ConstantRange(4, /*isFullSet=*/true)); |
| } |
| |
| TEST_F(ConstantRangeTest, UMax) { |
| EXPECT_EQ(Full.umax(Full), Full); |
| EXPECT_EQ(Full.umax(Empty), Empty); |
| EXPECT_EQ(Full.umax(Some), ConstantRange(APInt(16, 0xa), APInt(16, 0))); |
| EXPECT_EQ(Full.umax(Wrap), Full); |
| EXPECT_EQ(Full.umax(Some), ConstantRange(APInt(16, 0xa), APInt(16, 0))); |
| EXPECT_EQ(Empty.umax(Empty), Empty); |
| EXPECT_EQ(Empty.umax(Some), Empty); |
| EXPECT_EQ(Empty.umax(Wrap), Empty); |
| EXPECT_EQ(Empty.umax(One), Empty); |
| EXPECT_EQ(Some.umax(Some), Some); |
| EXPECT_EQ(Some.umax(Wrap), ConstantRange(APInt(16, 0xa), APInt(16, 0))); |
| EXPECT_EQ(Some.umax(One), Some); |
| // TODO: ConstantRange is currently over-conservative here. |
| EXPECT_EQ(Wrap.umax(Wrap), Full); |
| EXPECT_EQ(Wrap.umax(One), ConstantRange(APInt(16, 0xa), APInt(16, 0))); |
| EXPECT_EQ(One.umax(One), One); |
| } |
| |
| TEST_F(ConstantRangeTest, SMax) { |
| EXPECT_EQ(Full.smax(Full), Full); |
| EXPECT_EQ(Full.smax(Empty), Empty); |
| EXPECT_EQ(Full.smax(Some), ConstantRange(APInt(16, 0xa), |
| APInt::getSignedMinValue(16))); |
| EXPECT_EQ(Full.smax(Wrap), Full); |
| EXPECT_EQ(Full.smax(One), ConstantRange(APInt(16, 0xa), |
| APInt::getSignedMinValue(16))); |
| EXPECT_EQ(Empty.smax(Empty), Empty); |
| EXPECT_EQ(Empty.smax(Some), Empty); |
| EXPECT_EQ(Empty.smax(Wrap), Empty); |
| EXPECT_EQ(Empty.smax(One), Empty); |
| EXPECT_EQ(Some.smax(Some), Some); |
| EXPECT_EQ(Some.smax(Wrap), ConstantRange(APInt(16, 0xa), |
| APInt(16, (uint64_t)INT16_MIN))); |
| EXPECT_EQ(Some.smax(One), Some); |
| EXPECT_EQ(Wrap.smax(One), ConstantRange(APInt(16, 0xa), |
| APInt(16, (uint64_t)INT16_MIN))); |
| EXPECT_EQ(One.smax(One), One); |
| } |
| |
| TEST_F(ConstantRangeTest, UDiv) { |
| EXPECT_EQ(Full.udiv(Full), Full); |
| EXPECT_EQ(Full.udiv(Empty), Empty); |
| EXPECT_EQ(Full.udiv(One), ConstantRange(APInt(16, 0), |
| APInt(16, 0xffff / 0xa + 1))); |
| EXPECT_EQ(Full.udiv(Some), ConstantRange(APInt(16, 0), |
| APInt(16, 0xffff / 0xa + 1))); |
| EXPECT_EQ(Full.udiv(Wrap), Full); |
| EXPECT_EQ(Empty.udiv(Empty), Empty); |
| EXPECT_EQ(Empty.udiv(One), Empty); |
| EXPECT_EQ(Empty.udiv(Some), Empty); |
| EXPECT_EQ(Empty.udiv(Wrap), Empty); |
| EXPECT_EQ(One.udiv(One), ConstantRange(APInt(16, 1))); |
| EXPECT_EQ(One.udiv(Some), ConstantRange(APInt(16, 0), APInt(16, 2))); |
| EXPECT_EQ(One.udiv(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xb))); |
| EXPECT_EQ(Some.udiv(Some), ConstantRange(APInt(16, 0), APInt(16, 0x111))); |
| EXPECT_EQ(Some.udiv(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xaaa))); |
| EXPECT_EQ(Wrap.udiv(Wrap), Full); |
| } |
| |
| TEST_F(ConstantRangeTest, Shl) { |
| EXPECT_EQ(Full.shl(Full), Full); |
| EXPECT_EQ(Full.shl(Empty), Empty); |
| EXPECT_EQ(Full.shl(One), Full); // TODO: [0, (-1 << 0xa) + 1) |
| EXPECT_EQ(Full.shl(Some), Full); // TODO: [0, (-1 << 0xa) + 1) |
| EXPECT_EQ(Full.shl(Wrap), Full); |
| EXPECT_EQ(Empty.shl(Empty), Empty); |
| EXPECT_EQ(Empty.shl(One), Empty); |
| EXPECT_EQ(Empty.shl(Some), Empty); |
| EXPECT_EQ(Empty.shl(Wrap), Empty); |
| EXPECT_EQ(One.shl(One), ConstantRange(APInt(16, 0xa << 0xa), |
| APInt(16, (0xa << 0xa) + 1))); |
| EXPECT_EQ(One.shl(Some), Full); // TODO: [0xa << 0xa, 0) |
| EXPECT_EQ(One.shl(Wrap), Full); // TODO: [0xa, 0xa << 14 + 1) |
| EXPECT_EQ(Some.shl(Some), Full); // TODO: [0xa << 0xa, 0xfc01) |
| EXPECT_EQ(Some.shl(Wrap), Full); // TODO: [0xa, 0x7ff << 0x5 + 1) |
| EXPECT_EQ(Wrap.shl(Wrap), Full); |
| } |
| |
| TEST_F(ConstantRangeTest, Lshr) { |
| EXPECT_EQ(Full.lshr(Full), Full); |
| EXPECT_EQ(Full.lshr(Empty), Empty); |
| EXPECT_EQ(Full.lshr(One), ConstantRange(APInt(16, 0), |
| APInt(16, (0xffff >> 0xa) + 1))); |
| EXPECT_EQ(Full.lshr(Some), ConstantRange(APInt(16, 0), |
| APInt(16, (0xffff >> 0xa) + 1))); |
| EXPECT_EQ(Full.lshr(Wrap), Full); |
| EXPECT_EQ(Empty.lshr(Empty), Empty); |
| EXPECT_EQ(Empty.lshr(One), Empty); |
| EXPECT_EQ(Empty.lshr(Some), Empty); |
| EXPECT_EQ(Empty.lshr(Wrap), Empty); |
| EXPECT_EQ(One.lshr(One), ConstantRange(APInt(16, 0))); |
| EXPECT_EQ(One.lshr(Some), ConstantRange(APInt(16, 0))); |
| EXPECT_EQ(One.lshr(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xb))); |
| EXPECT_EQ(Some.lshr(Some), ConstantRange(APInt(16, 0), |
| APInt(16, (0xaaa >> 0xa) + 1))); |
| EXPECT_EQ(Some.lshr(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xaaa))); |
| EXPECT_EQ(Wrap.lshr(Wrap), Full); |
| } |
| |
| TEST(ConstantRange, MakeICmpRegion) { |
| // PR8250 |
| ConstantRange SMax = ConstantRange(APInt::getSignedMaxValue(32)); |
| EXPECT_TRUE(ConstantRange::makeICmpRegion(ICmpInst::ICMP_SGT, |
| SMax).isEmptySet()); |
| } |
| |
| } // anonymous namespace |
