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authorpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
committerpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
commitb64793999546ed8adebaeebd9d8345d18db8927d (patch)
tree4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/unittests/IR/ConstantRangeTest.cpp
parentAdd support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff)
downloadwireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz
wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.zip
Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/unittests/IR/ConstantRangeTest.cpp')
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diff --git a/gnu/llvm/unittests/IR/ConstantRangeTest.cpp b/gnu/llvm/unittests/IR/ConstantRangeTest.cpp
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-//===- 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