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| author | 2020-08-03 15:06:44 +0000 | |
|---|---|---|
| committer | 2020-08-03 15:06:44 +0000 | |
| commit | b64793999546ed8adebaeebd9d8345d18db8927d (patch) | |
| tree | 4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/unittests/IR/ConstantRangeTest.cpp | |
| parent | Add support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff) | |
| download | wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.zip | |
Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/unittests/IR/ConstantRangeTest.cpp')
| -rw-r--r-- | gnu/llvm/unittests/IR/ConstantRangeTest.cpp | 1123 |
1 files changed, 0 insertions, 1123 deletions
diff --git a/gnu/llvm/unittests/IR/ConstantRangeTest.cpp b/gnu/llvm/unittests/IR/ConstantRangeTest.cpp deleted file mode 100644 index c0a30f1b4d9..00000000000 --- a/gnu/llvm/unittests/IR/ConstantRangeTest.cpp +++ /dev/null @@ -1,1123 +0,0 @@ -//===- 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 "llvm/IR/Operator.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 *>(nullptr)); - EXPECT_EQ(Empty.getSingleElement(), static_cast<APInt *>(nullptr)); - EXPECT_EQ(Full.getSingleMissingElement(), static_cast<APInt *>(nullptr)); - EXPECT_EQ(Empty.getSingleMissingElement(), static_cast<APInt *>(nullptr)); - - EXPECT_EQ(*One.getSingleElement(), APInt(16, 0xa)); - EXPECT_EQ(Some.getSingleElement(), static_cast<APInt *>(nullptr)); - EXPECT_EQ(Wrap.getSingleElement(), static_cast<APInt *>(nullptr)); - - EXPECT_EQ(One.getSingleMissingElement(), static_cast<APInt *>(nullptr)); - EXPECT_EQ(Some.getSingleMissingElement(), static_cast<APInt *>(nullptr)); - - ConstantRange OneInverse = One.inverse(); - EXPECT_EQ(*OneInverse.getSingleMissingElement(), *One.getSingleElement()); - - 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()); - EXPECT_TRUE(TWrap.isFullSet()); - - // trunc([2, 5), 3->2) = [2, 1) - ConstantRange TwoFive(APInt(3, 2), APInt(3, 5)); - EXPECT_EQ(TwoFive.truncate(2), ConstantRange(APInt(2, 2), APInt(2, 1))); - - // trunc([2, 6), 3->2) = full - ConstantRange TwoSix(APInt(3, 2), APInt(3, 6)); - EXPECT_TRUE(TwoSix.truncate(2).isFullSet()); - - // trunc([5, 7), 3->2) = [1, 3) - ConstantRange FiveSeven(APInt(3, 5), APInt(3, 7)); - EXPECT_EQ(FiveSeven.truncate(2), ConstantRange(APInt(2, 1), APInt(2, 3))); - - // trunc([7, 1), 3->2) = [3, 1) - ConstantRange SevenOne(APInt(3, 7), APInt(3, 1)); - EXPECT_EQ(SevenOne.truncate(2), ConstantRange(APInt(2, 3), APInt(2, 1))); -} - -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, AddWithNoSignedWrap) { - EXPECT_EQ(Empty.addWithNoSignedWrap(APInt(16, 1)), Empty); - EXPECT_EQ(Full.addWithNoSignedWrap(APInt(16, 1)), - ConstantRange(APInt(16, INT16_MIN+1), APInt(16, INT16_MIN))); - EXPECT_EQ(ConstantRange(APInt(8, -50), APInt(8, 50)).addWithNoSignedWrap(APInt(8, 10)), - ConstantRange(APInt(8, -40), APInt(8, 60))); - EXPECT_EQ(ConstantRange(APInt(8, -50), APInt(8, 120)).addWithNoSignedWrap(APInt(8, 10)), - ConstantRange(APInt(8, -40), APInt(8, INT8_MIN))); - EXPECT_EQ(ConstantRange(APInt(8, 120), APInt(8, -10)).addWithNoSignedWrap(APInt(8, 5)), - ConstantRange(APInt(8, 125), APInt(8, -5))); - EXPECT_EQ(ConstantRange(APInt(8, 120), APInt(8, -120)).addWithNoSignedWrap(APInt(8, 10)), - ConstantRange(APInt(8, INT8_MIN+10), APInt(8, -110))); - - EXPECT_EQ(Empty.addWithNoSignedWrap(APInt(16, -1)), Empty); - EXPECT_EQ(Full.addWithNoSignedWrap(APInt(16, -1)), - ConstantRange(APInt(16, INT16_MIN), APInt(16, INT16_MAX))); - EXPECT_EQ(ConstantRange(APInt(8, -50), APInt(8, 50)).addWithNoSignedWrap(APInt(8, -10)), - ConstantRange(APInt(8, -60), APInt(8, 40))); - EXPECT_EQ(ConstantRange(APInt(8, -120), APInt(8, 50)).addWithNoSignedWrap(APInt(8, -10)), - ConstantRange(APInt(8, INT8_MIN), APInt(8, 40))); - EXPECT_EQ(ConstantRange(APInt(8, 120), APInt(8, -120)).addWithNoSignedWrap(APInt(8, -5)), - ConstantRange(APInt(8, 115), APInt(8, -125))); - EXPECT_EQ(ConstantRange(APInt(8, 120), APInt(8, -120)).addWithNoSignedWrap(APInt(8, -10)), - ConstantRange(APInt(8, 110), APInt(8, INT8_MIN-10))); -} - -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)); - - EXPECT_EQ(ConstantRange(APInt(8, 254), APInt(8, 0)).multiply( - ConstantRange(APInt(8, 252), APInt(8, 4))), - ConstantRange(APInt(8, 250), APInt(8, 9))); - EXPECT_EQ(ConstantRange(APInt(8, 254), APInt(8, 255)).multiply( - ConstantRange(APInt(8, 2), APInt(8, 4))), - ConstantRange(APInt(8, 250), APInt(8, 253))); - - // TODO: This should be return [-2, 0] - EXPECT_EQ(ConstantRange(APInt(8, -2)).multiply( - ConstantRange(APInt(8, 0), APInt(8, 2))), - ConstantRange(APInt(8, -2), APInt(8, 1))); -} - -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, UMin) { - EXPECT_EQ(Full.umin(Full), Full); - EXPECT_EQ(Full.umin(Empty), Empty); - EXPECT_EQ(Full.umin(Some), ConstantRange(APInt(16, 0), APInt(16, 0xaaa))); - EXPECT_EQ(Full.umin(Wrap), Full); - EXPECT_EQ(Empty.umin(Empty), Empty); - EXPECT_EQ(Empty.umin(Some), Empty); - EXPECT_EQ(Empty.umin(Wrap), Empty); - EXPECT_EQ(Empty.umin(One), Empty); - EXPECT_EQ(Some.umin(Some), Some); - EXPECT_EQ(Some.umin(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xaaa))); - EXPECT_EQ(Some.umin(One), One); - // TODO: ConstantRange is currently over-conservative here. - EXPECT_EQ(Wrap.umin(Wrap), Full); - EXPECT_EQ(Wrap.umin(One), ConstantRange(APInt(16, 0), APInt(16, 0xb))); - EXPECT_EQ(One.umin(One), One); -} - -TEST_F(ConstantRangeTest, SMin) { - EXPECT_EQ(Full.smin(Full), Full); - EXPECT_EQ(Full.smin(Empty), Empty); - EXPECT_EQ(Full.smin(Some), ConstantRange(APInt(16, (uint64_t)INT16_MIN), - APInt(16, 0xaaa))); - EXPECT_EQ(Full.smin(Wrap), Full); - EXPECT_EQ(Empty.smin(Empty), Empty); - EXPECT_EQ(Empty.smin(Some), Empty); - EXPECT_EQ(Empty.smin(Wrap), Empty); - EXPECT_EQ(Empty.smin(One), Empty); - EXPECT_EQ(Some.smin(Some), Some); - EXPECT_EQ(Some.smin(Wrap), ConstantRange(APInt(16, (uint64_t)INT16_MIN), - APInt(16, 0xaaa))); - EXPECT_EQ(Some.smin(One), One); - // TODO: ConstantRange is currently over-conservative here. - EXPECT_EQ(Wrap.smin(Wrap), Full); - EXPECT_EQ(Wrap.smin(One), ConstantRange(APInt(16, (uint64_t)INT16_MIN), - APInt(16, 0xb))); - EXPECT_EQ(One.smin(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_F(ConstantRangeTest, Ashr) { - EXPECT_EQ(Full.ashr(Full), Full); - EXPECT_EQ(Full.ashr(Empty), Empty); - EXPECT_EQ(Full.ashr(One), ConstantRange(APInt(16, 0xffe0), - APInt(16, (0x7fff >> 0xa) + 1 ))); - ConstantRange Small(APInt(16, 0xa), APInt(16, 0xb)); - EXPECT_EQ(Full.ashr(Small), ConstantRange(APInt(16, 0xffe0), - APInt(16, (0x7fff >> 0xa) + 1 ))); - EXPECT_EQ(Full.ashr(Some), ConstantRange(APInt(16, 0xffe0), - APInt(16, (0x7fff >> 0xa) + 1 ))); - EXPECT_EQ(Full.ashr(Wrap), Full); - EXPECT_EQ(Empty.ashr(Empty), Empty); - EXPECT_EQ(Empty.ashr(One), Empty); - EXPECT_EQ(Empty.ashr(Some), Empty); - EXPECT_EQ(Empty.ashr(Wrap), Empty); - EXPECT_EQ(One.ashr(One), ConstantRange(APInt(16, 0))); - EXPECT_EQ(One.ashr(Some), ConstantRange(APInt(16, 0))); - EXPECT_EQ(One.ashr(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xb))); - EXPECT_EQ(Some.ashr(Some), ConstantRange(APInt(16, 0), - APInt(16, (0xaaa >> 0xa) + 1))); - EXPECT_EQ(Some.ashr(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xaaa))); - EXPECT_EQ(Wrap.ashr(Wrap), Full); - ConstantRange Neg(APInt(16, 0xf3f0, true), APInt(16, 0xf7f8, true)); - EXPECT_EQ(Neg.ashr(Small), ConstantRange(APInt(16, 0xfffc, true), - APInt(16, 0xfffe, true))); -} - -TEST(ConstantRange, MakeAllowedICmpRegion) { - // PR8250 - ConstantRange SMax = ConstantRange(APInt::getSignedMaxValue(32)); - EXPECT_TRUE(ConstantRange::makeAllowedICmpRegion(ICmpInst::ICMP_SGT, SMax) - .isEmptySet()); -} - -TEST(ConstantRange, MakeSatisfyingICmpRegion) { - ConstantRange LowHalf(APInt(8, 0), APInt(8, 128)); - ConstantRange HighHalf(APInt(8, 128), APInt(8, 0)); - ConstantRange EmptySet(8, /* isFullSet = */ false); - - EXPECT_EQ(ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_NE, LowHalf), - HighHalf); - - EXPECT_EQ( - ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_NE, HighHalf), - LowHalf); - - EXPECT_TRUE(ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_EQ, - HighHalf).isEmptySet()); - - ConstantRange UnsignedSample(APInt(8, 5), APInt(8, 200)); - - EXPECT_EQ(ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_ULT, - UnsignedSample), - ConstantRange(APInt(8, 0), APInt(8, 5))); - - EXPECT_EQ(ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_ULE, - UnsignedSample), - ConstantRange(APInt(8, 0), APInt(8, 6))); - - EXPECT_EQ(ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_UGT, - UnsignedSample), - ConstantRange(APInt(8, 200), APInt(8, 0))); - - EXPECT_EQ(ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_UGE, - UnsignedSample), - ConstantRange(APInt(8, 199), APInt(8, 0))); - - ConstantRange SignedSample(APInt(8, -5), APInt(8, 5)); - - EXPECT_EQ( - ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_SLT, SignedSample), - ConstantRange(APInt(8, -128), APInt(8, -5))); - - EXPECT_EQ( - ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_SLE, SignedSample), - ConstantRange(APInt(8, -128), APInt(8, -4))); - - EXPECT_EQ( - ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_SGT, SignedSample), - ConstantRange(APInt(8, 5), APInt(8, -128))); - - EXPECT_EQ( - ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_SGE, SignedSample), - ConstantRange(APInt(8, 4), APInt(8, -128))); -} - -TEST(ConstantRange, MakeGuaranteedNoWrapRegion) { - const int IntMin4Bits = 8; - const int IntMax4Bits = 7; - typedef OverflowingBinaryOperator OBO; - - for (int Const : {0, -1, -2, 1, 2, IntMin4Bits, IntMax4Bits}) { - APInt C(4, Const, true /* = isSigned */); - - auto NUWRegion = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, C, OBO::NoUnsignedWrap); - - EXPECT_FALSE(NUWRegion.isEmptySet()); - - auto NSWRegion = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, C, OBO::NoSignedWrap); - - EXPECT_FALSE(NSWRegion.isEmptySet()); - - auto NoWrapRegion = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, C, OBO::NoSignedWrap | OBO::NoUnsignedWrap); - - EXPECT_FALSE(NoWrapRegion.isEmptySet()); - EXPECT_TRUE(NUWRegion.intersectWith(NSWRegion).contains(NoWrapRegion)); - - for (APInt I = NUWRegion.getLower(), E = NUWRegion.getUpper(); I != E; - ++I) { - bool Overflow = false; - (void)I.uadd_ov(C, Overflow); - EXPECT_FALSE(Overflow); - } - - for (APInt I = NSWRegion.getLower(), E = NSWRegion.getUpper(); I != E; - ++I) { - bool Overflow = false; - (void)I.sadd_ov(C, Overflow); - EXPECT_FALSE(Overflow); - } - - for (APInt I = NoWrapRegion.getLower(), E = NoWrapRegion.getUpper(); I != E; - ++I) { - bool Overflow = false; - - (void)I.sadd_ov(C, Overflow); - EXPECT_FALSE(Overflow); - - (void)I.uadd_ov(C, Overflow); - EXPECT_FALSE(Overflow); - } - } - - for (int Const : {0, -1, -2, 1, 2, IntMin4Bits, IntMax4Bits}) { - APInt C(4, Const, true /* = isSigned */); - - auto NUWRegion = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, C, OBO::NoUnsignedWrap); - - EXPECT_FALSE(NUWRegion.isEmptySet()); - - auto NSWRegion = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, C, OBO::NoSignedWrap); - - EXPECT_FALSE(NSWRegion.isEmptySet()); - - auto NoWrapRegion = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, C, OBO::NoSignedWrap | OBO::NoUnsignedWrap); - - EXPECT_FALSE(NoWrapRegion.isEmptySet()); - EXPECT_TRUE(NUWRegion.intersectWith(NSWRegion).contains(NoWrapRegion)); - - for (APInt I = NUWRegion.getLower(), E = NUWRegion.getUpper(); I != E; - ++I) { - bool Overflow = false; - (void)I.usub_ov(C, Overflow); - EXPECT_FALSE(Overflow); - } - - for (APInt I = NSWRegion.getLower(), E = NSWRegion.getUpper(); I != E; - ++I) { - bool Overflow = false; - (void)I.ssub_ov(C, Overflow); - EXPECT_FALSE(Overflow); - } - - for (APInt I = NoWrapRegion.getLower(), E = NoWrapRegion.getUpper(); I != E; - ++I) { - bool Overflow = false; - - (void)I.ssub_ov(C, Overflow); - EXPECT_FALSE(Overflow); - - (void)I.usub_ov(C, Overflow); - EXPECT_FALSE(Overflow); - } - } - - auto NSWForAllValues = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, ConstantRange(32, /* isFullSet = */ true), - OBO::NoSignedWrap); - EXPECT_TRUE(NSWForAllValues.isSingleElement() && - NSWForAllValues.getSingleElement()->isMinValue()); - - NSWForAllValues = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, ConstantRange(32, /* isFullSet = */ true), - OBO::NoSignedWrap); - EXPECT_TRUE(NSWForAllValues.isSingleElement() && - NSWForAllValues.getSingleElement()->isMaxValue()); - - auto NUWForAllValues = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, ConstantRange(32, /* isFullSet = */ true), - OBO::NoUnsignedWrap); - EXPECT_TRUE(NUWForAllValues.isSingleElement() && - NUWForAllValues.getSingleElement()->isMinValue()); - - NUWForAllValues = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, ConstantRange(32, /* isFullSet = */ true), - OBO::NoUnsignedWrap); - EXPECT_TRUE(NUWForAllValues.isSingleElement() && - NUWForAllValues.getSingleElement()->isMaxValue()); - - auto NUWAndNSWForAllValues = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, ConstantRange(32, /* isFullSet = */ true), - OBO::NoUnsignedWrap | OBO::NoSignedWrap); - EXPECT_TRUE(NUWAndNSWForAllValues.isSingleElement() && - NUWAndNSWForAllValues.getSingleElement()->isMinValue()); - - NUWAndNSWForAllValues = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, ConstantRange(32, /* isFullSet = */ true), - OBO::NoUnsignedWrap | OBO::NoSignedWrap); - EXPECT_TRUE(NUWAndNSWForAllValues.isSingleElement() && - NUWAndNSWForAllValues.getSingleElement()->isMaxValue()); - - EXPECT_TRUE(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, APInt(32, 0), OBO::NoUnsignedWrap).isFullSet()); - EXPECT_TRUE(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, APInt(32, 0), OBO::NoSignedWrap).isFullSet()); - EXPECT_TRUE(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, APInt(32, 0), - OBO::NoUnsignedWrap | OBO::NoSignedWrap).isFullSet()); - EXPECT_TRUE(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, APInt(32, 0), OBO::NoUnsignedWrap).isFullSet()); - EXPECT_TRUE(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, APInt(32, 0), OBO::NoSignedWrap).isFullSet()); - EXPECT_TRUE(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, APInt(32, 0), - OBO::NoUnsignedWrap | OBO::NoSignedWrap).isFullSet()); - - ConstantRange OneToFive(APInt(32, 1), APInt(32, 6)); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, OneToFive, OBO::NoSignedWrap), - ConstantRange(APInt::getSignedMinValue(32), - APInt::getSignedMaxValue(32) - 4)); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, OneToFive, OBO::NoUnsignedWrap), - ConstantRange(APInt::getMinValue(32), APInt::getMinValue(32) - 5)); - EXPECT_EQ( - ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, OneToFive, OBO::NoUnsignedWrap | OBO::NoSignedWrap), - ConstantRange(APInt::getMinValue(32), APInt::getSignedMaxValue(32) - 4)); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, OneToFive, OBO::NoSignedWrap), - ConstantRange(APInt::getSignedMinValue(32) + 5, - APInt::getSignedMinValue(32))); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, OneToFive, OBO::NoUnsignedWrap), - ConstantRange(APInt::getMinValue(32) + 5, APInt::getMinValue(32))); - EXPECT_EQ( - ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, OneToFive, OBO::NoUnsignedWrap | OBO::NoSignedWrap), - ConstantRange(APInt::getMinValue(32) + 5, APInt::getSignedMinValue(32))); - - ConstantRange MinusFiveToMinusTwo(APInt(32, -5), APInt(32, -1)); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, MinusFiveToMinusTwo, OBO::NoSignedWrap), - ConstantRange(APInt::getSignedMinValue(32) + 5, - APInt::getSignedMinValue(32))); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, MinusFiveToMinusTwo, OBO::NoUnsignedWrap), - ConstantRange(APInt(32, 0), APInt(32, 2))); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, MinusFiveToMinusTwo, - OBO::NoUnsignedWrap | OBO::NoSignedWrap), - ConstantRange(APInt(32, 0), APInt(32, 2))); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, MinusFiveToMinusTwo, OBO::NoSignedWrap), - ConstantRange(APInt::getSignedMinValue(32), - APInt::getSignedMaxValue(32) - 4)); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, MinusFiveToMinusTwo, OBO::NoUnsignedWrap), - ConstantRange(APInt::getMaxValue(32) - 1, - APInt::getMinValue(32))); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, MinusFiveToMinusTwo, - OBO::NoUnsignedWrap | OBO::NoSignedWrap), - ConstantRange(APInt::getMaxValue(32) - 1, - APInt::getMinValue(32))); - - ConstantRange MinusOneToOne(APInt(32, -1), APInt(32, 2)); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, MinusOneToOne, OBO::NoSignedWrap), - ConstantRange(APInt::getSignedMinValue(32) + 1, - APInt::getSignedMinValue(32) - 1)); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, MinusOneToOne, OBO::NoUnsignedWrap), - ConstantRange(APInt(32, 0), APInt(32, 1))); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, MinusOneToOne, - OBO::NoUnsignedWrap | OBO::NoSignedWrap), - ConstantRange(APInt(32, 0), APInt(32, 1))); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, MinusOneToOne, OBO::NoSignedWrap), - ConstantRange(APInt::getSignedMinValue(32) + 1, - APInt::getSignedMinValue(32) - 1)); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, MinusOneToOne, OBO::NoUnsignedWrap), - ConstantRange(APInt::getMaxValue(32), - APInt::getMinValue(32))); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, MinusOneToOne, - OBO::NoUnsignedWrap | OBO::NoSignedWrap), - ConstantRange(APInt::getMaxValue(32), - APInt::getMinValue(32))); - - ConstantRange One(APInt(32, 1), APInt(32, 2)); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, One, OBO::NoSignedWrap), - ConstantRange(APInt::getSignedMinValue(32), - APInt::getSignedMaxValue(32))); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, One, OBO::NoUnsignedWrap), - ConstantRange(APInt::getMinValue(32), APInt::getMaxValue(32))); - EXPECT_EQ( - ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Add, One, OBO::NoUnsignedWrap | OBO::NoSignedWrap), - ConstantRange(APInt(32, 0), APInt::getSignedMaxValue(32))); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, One, OBO::NoSignedWrap), - ConstantRange(APInt::getSignedMinValue(32) + 1, - APInt::getSignedMinValue(32))); - EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, One, OBO::NoUnsignedWrap), - ConstantRange(APInt::getMinValue(32) + 1, APInt::getMinValue(32))); - EXPECT_EQ( - ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Sub, One, OBO::NoUnsignedWrap | OBO::NoSignedWrap), - ConstantRange(APInt::getMinValue(32) + 1, APInt::getSignedMinValue(32))); -} - -TEST(ConstantRange, GetEquivalentICmp) { - APInt RHS; - CmpInst::Predicate Pred; - - EXPECT_TRUE(ConstantRange(APInt::getMinValue(32), APInt(32, 100)) - .getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_ULT); - EXPECT_EQ(RHS, APInt(32, 100)); - - EXPECT_TRUE(ConstantRange(APInt::getSignedMinValue(32), APInt(32, 100)) - .getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_SLT); - EXPECT_EQ(RHS, APInt(32, 100)); - - EXPECT_TRUE(ConstantRange(APInt(32, 100), APInt::getMinValue(32)) - .getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_UGE); - EXPECT_EQ(RHS, APInt(32, 100)); - - EXPECT_TRUE(ConstantRange(APInt(32, 100), APInt::getSignedMinValue(32)) - .getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_SGE); - EXPECT_EQ(RHS, APInt(32, 100)); - - EXPECT_TRUE( - ConstantRange(32, /*isFullSet=*/true).getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_UGE); - EXPECT_EQ(RHS, APInt(32, 0)); - - EXPECT_TRUE( - ConstantRange(32, /*isFullSet=*/false).getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_ULT); - EXPECT_EQ(RHS, APInt(32, 0)); - - EXPECT_FALSE(ConstantRange(APInt(32, 100), APInt(32, 200)) - .getEquivalentICmp(Pred, RHS)); - - EXPECT_FALSE(ConstantRange(APInt::getSignedMinValue(32) - APInt(32, 100), - APInt::getSignedMinValue(32) + APInt(32, 100)) - .getEquivalentICmp(Pred, RHS)); - - EXPECT_FALSE(ConstantRange(APInt::getMinValue(32) - APInt(32, 100), - APInt::getMinValue(32) + APInt(32, 100)) - .getEquivalentICmp(Pred, RHS)); - - EXPECT_TRUE(ConstantRange(APInt(32, 100)).getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_EQ); - EXPECT_EQ(RHS, APInt(32, 100)); - - EXPECT_TRUE( - ConstantRange(APInt(32, 100)).inverse().getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_NE); - EXPECT_EQ(RHS, APInt(32, 100)); - - EXPECT_TRUE( - ConstantRange(APInt(512, 100)).inverse().getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_NE); - EXPECT_EQ(RHS, APInt(512, 100)); - - // NB! It would be correct for the following four calls to getEquivalentICmp - // to return ordered predicates like CmpInst::ICMP_ULT or CmpInst::ICMP_UGT. - // However, that's not the case today. - - EXPECT_TRUE(ConstantRange(APInt(32, 0)).getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_EQ); - EXPECT_EQ(RHS, APInt(32, 0)); - - EXPECT_TRUE( - ConstantRange(APInt(32, 0)).inverse().getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_NE); - EXPECT_EQ(RHS, APInt(32, 0)); - - EXPECT_TRUE(ConstantRange(APInt(32, -1)).getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_EQ); - EXPECT_EQ(RHS, APInt(32, -1)); - - EXPECT_TRUE( - ConstantRange(APInt(32, -1)).inverse().getEquivalentICmp(Pred, RHS)); - EXPECT_EQ(Pred, CmpInst::ICMP_NE); - EXPECT_EQ(RHS, APInt(32, -1)); -} - -TEST(ConstantRange, MakeGuaranteedNoWrapRegionMulUnsignedSingleValue) { - typedef OverflowingBinaryOperator OBO; - - for (uint64_t I = std::numeric_limits<uint8_t>::min(); - I <= std::numeric_limits<uint8_t>::max(); I++) { - auto Range = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Mul, ConstantRange(APInt(8, I), APInt(8, I + 1)), - OBO::NoUnsignedWrap); - - for (uint64_t V = std::numeric_limits<uint8_t>::min(); - V <= std::numeric_limits<uint8_t>::max(); V++) { - bool Overflow; - (void)APInt(8, I).umul_ov(APInt(8, V), Overflow); - EXPECT_EQ(!Overflow, Range.contains(APInt(8, V))); - } - } -} - -TEST(ConstantRange, MakeGuaranteedNoWrapRegionMulSignedSingleValue) { - typedef OverflowingBinaryOperator OBO; - - for (int64_t I = std::numeric_limits<int8_t>::min(); - I <= std::numeric_limits<int8_t>::max(); I++) { - auto Range = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Mul, - ConstantRange(APInt(8, I, /*isSigned=*/true), - APInt(8, I + 1, /*isSigned=*/true)), - OBO::NoSignedWrap); - - for (int64_t V = std::numeric_limits<int8_t>::min(); - V <= std::numeric_limits<int8_t>::max(); V++) { - bool Overflow; - (void)APInt(8, I, /*isSigned=*/true) - .smul_ov(APInt(8, V, /*isSigned=*/true), Overflow); - EXPECT_EQ(!Overflow, Range.contains(APInt(8, V, /*isSigned=*/true))); - } - } -} - -TEST(ConstantRange, MakeGuaranteedNoWrapRegionMulUnsignedAndSignedSingleValue) { - typedef OverflowingBinaryOperator OBO; - - for (uint64_t I = std::numeric_limits<uint8_t>::min(); - I <= std::numeric_limits<uint8_t>::max(); I++) { - auto Range = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Mul, ConstantRange(APInt(8, I), APInt(8, I + 1)), - OBO::NoUnsignedWrap | OBO::NoSignedWrap); - - for (uint64_t V = std::numeric_limits<uint8_t>::min(); - V <= std::numeric_limits<uint8_t>::max(); V++) { - bool UOverflow; - (void)APInt(8, I).umul_ov(APInt(8, V), UOverflow); - bool SOverflow; - (void)APInt(8, I).smul_ov(APInt(8, V), SOverflow); - EXPECT_EQ(!(UOverflow || SOverflow), Range.contains(APInt(8, V))); - } - } -} - -TEST(ConstantRange, MakeGuaranteedNoWrapRegionMulUnsignedRange) { - typedef OverflowingBinaryOperator OBO; - - for (uint64_t Lo = std::numeric_limits<uint8_t>::min(); - Lo <= std::numeric_limits<uint8_t>::max(); Lo++) { - for (uint64_t Hi = Lo; Hi <= std::numeric_limits<uint8_t>::max(); Hi++) { - EXPECT_EQ( - ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Mul, ConstantRange(APInt(8, Lo), APInt(8, Hi + 1)), - OBO::NoUnsignedWrap), - ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Mul, ConstantRange(APInt(8, Hi), APInt(8, Hi + 1)), - OBO::NoUnsignedWrap)); - } - } -} - -TEST(ConstantRange, MakeGuaranteedNoWrapRegionMulSignedRange) { - typedef OverflowingBinaryOperator OBO; - - int Lo = -12, Hi = 16; - auto Range = ConstantRange::makeGuaranteedNoWrapRegion( - Instruction::Mul, - ConstantRange(APInt(8, Lo, /*isSigned=*/true), - APInt(8, Hi + 1, /*isSigned=*/true)), - OBO::NoSignedWrap); - - for (int64_t V = std::numeric_limits<int8_t>::min(); - V <= std::numeric_limits<int8_t>::max(); V++) { - bool AnyOverflow = false; - for (int64_t I = Lo; I <= Hi; I++) { - bool Overflow; - (void)APInt(8, I, /*isSigned=*/true) - .smul_ov(APInt(8, V, /*isSigned=*/true), Overflow); - AnyOverflow |= Overflow; - } - EXPECT_EQ(!AnyOverflow, Range.contains(APInt(8, V, /*isSigned=*/true))); - } -} - -} // anonymous namespace |
