From 19d764fb05662ff6b423cf6dc97d300276e4b586 Mon Sep 17 00:00:00 2001 From: Chandler Carruth Date: Tue, 4 Mar 2014 12:24:34 +0000 Subject: [Modules] Move the ConstantRange class into the IR library. This is a bit surprising, as the class is almost entirely abstracted away from any particular IR, however it encodes the comparsion predicates which mutate ranges as ICmp predicate codes. This is reasonable as they're used for both instructions and constants. Thus, it belongs in the IR library with instructions and constants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202838 91177308-0d34-0410-b5e6-96231b3b80d8 --- unittests/IR/CMakeLists.txt | 1 + unittests/IR/ConstantRangeTest.cpp | 512 +++++++++++++++++++++++++++++++++++++ 2 files changed, 513 insertions(+) create mode 100644 unittests/IR/ConstantRangeTest.cpp (limited to 'unittests/IR') diff --git a/unittests/IR/CMakeLists.txt b/unittests/IR/CMakeLists.txt index fd8d842c80..e1c295d0be 100644 --- a/unittests/IR/CMakeLists.txt +++ b/unittests/IR/CMakeLists.txt @@ -8,6 +8,7 @@ set(LLVM_LINK_COMPONENTS set(IRSources AttributesTest.cpp + ConstantRangeTest.cpp ConstantsTest.cpp DominatorTreeTest.cpp IRBuilderTest.cpp diff --git a/unittests/IR/ConstantRangeTest.cpp b/unittests/IR/ConstantRangeTest.cpp new file mode 100644 index 0000000000..cdf7378c17 --- /dev/null +++ b/unittests/IR/ConstantRangeTest.cpp @@ -0,0 +1,512 @@ +//===- 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/IR/ConstantRange.h" +#include "llvm/IR/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(NULL)); + EXPECT_EQ(Empty.getSingleElement(), static_cast(NULL)); + EXPECT_EQ(*One.getSingleElement(), APInt(16, 0xa)); + EXPECT_EQ(Some.getSingleElement(), static_cast(NULL)); + EXPECT_EQ(Wrap.getSingleElement(), static_cast(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(17, 65536)); + EXPECT_EQ(Empty.getSetSize(), APInt(17, 0)); + EXPECT_EQ(One.getSetSize(), APInt(17, 1)); + EXPECT_EQ(Some.getSetSize(), APInt(17, 0xaa0)); + + ConstantRange Wrap(APInt(4, 7), APInt(4, 3)); + ConstantRange Wrap2(APInt(4, 8), APInt(4, 7)); + EXPECT_EQ(Wrap.getSetSize(), APInt(5, 12)); + EXPECT_EQ(Wrap2.getSetSize(), APInt(5, 15)); +} + +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))); + + // zext([5, 0), 3->7) = [5, 8) + ConstantRange FiveZero(APInt(3, 5), APInt(3, 0)); + EXPECT_EQ(FiveZero.zeroExtend(7), ConstantRange(APInt(7, 5), APInt(7, 8))); +} + +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))); + + EXPECT_EQ(ConstantRange(APInt(16, 0x0200), APInt(16, 0x8000)).signExtend(19), + ConstantRange(APInt(19, 0x0200), APInt(19, 0x8000))); +} + +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); + + // previous bug: intersection of [min, 3) and [2, max) should be 2 + LHS = ConstantRange(APInt(32, -2147483646), APInt(32, 3)); + RHS = ConstantRange(APInt(32, 2), APInt(32, 2147483646)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 2))); + + // [2, 0) /\ [4, 3) = [2, 0) + LHS = ConstantRange(APInt(32, 2), APInt(32, 0)); + RHS = ConstantRange(APInt(32, 4), APInt(32, 3)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 2), APInt(32, 0))); + + // [2, 0) /\ [4, 2) = [4, 0) + LHS = ConstantRange(APInt(32, 2), APInt(32, 0)); + RHS = ConstantRange(APInt(32, 4), APInt(32, 2)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 4), APInt(32, 0))); + + // [4, 2) /\ [5, 1) = [5, 1) + LHS = ConstantRange(APInt(32, 4), APInt(32, 2)); + RHS = ConstantRange(APInt(32, 5), APInt(32, 1)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 5), APInt(32, 1))); + + // [2, 0) /\ [7, 4) = [7, 4) + LHS = ConstantRange(APInt(32, 2), APInt(32, 0)); + RHS = ConstantRange(APInt(32, 7), APInt(32, 4)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 7), APInt(32, 4))); + + // [4, 2) /\ [1, 0) = [1, 0) + LHS = ConstantRange(APInt(32, 4), APInt(32, 2)); + RHS = ConstantRange(APInt(32, 1), APInt(32, 0)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 4), APInt(32, 2))); + + // [15, 0) /\ [7, 6) = [15, 0) + LHS = ConstantRange(APInt(32, 15), APInt(32, 0)); + RHS = ConstantRange(APInt(32, 7), APInt(32, 6)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 15), APInt(32, 0))); +} + +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, SetDifference) { + EXPECT_EQ(Full.difference(Empty), Full); + EXPECT_EQ(Full.difference(Full), Empty); + EXPECT_EQ(Empty.difference(Empty), Empty); + EXPECT_EQ(Empty.difference(Full), Empty); + + ConstantRange A(APInt(16, 3), APInt(16, 7)); + ConstantRange B(APInt(16, 5), APInt(16, 9)); + ConstantRange C(APInt(16, 3), APInt(16, 5)); + ConstantRange D(APInt(16, 7), APInt(16, 9)); + ConstantRange E(APInt(16, 5), APInt(16, 4)); + ConstantRange F(APInt(16, 7), APInt(16, 3)); + EXPECT_EQ(A.difference(B), C); + EXPECT_EQ(B.difference(A), D); + EXPECT_EQ(E.difference(A), F); +} + +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); + + ConstantRange Zero(APInt(16, 0)); + EXPECT_EQ(Zero.multiply(Full), Zero); + EXPECT_EQ(Zero.multiply(Some), Zero); + EXPECT_EQ(Zero.multiply(Wrap), Zero); + EXPECT_EQ(Full.multiply(Zero), Zero); + EXPECT_EQ(Some.multiply(Zero), Zero); + EXPECT_EQ(Wrap.multiply(Zero), Zero); + + // 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 -- cgit v1.2.3