100 lines · cpp
1//===- InferIntRangeInterfaceTest.cpp - Unit Tests for InferIntRange... --===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "mlir/Interfaces/InferIntRangeInterface.h"10#include "llvm/ADT/APInt.h"11#include <limits>12 13#include <gtest/gtest.h>14 15using namespace mlir;16 17TEST(IntRangeAttrs, BasicConstructors) {18 APInt zero = APInt::getZero(64);19 APInt two(64, 2);20 APInt three(64, 3);21 ConstantIntRanges boundedAbove(zero, two, zero, three);22 EXPECT_EQ(boundedAbove.umin(), zero);23 EXPECT_EQ(boundedAbove.umax(), two);24 EXPECT_EQ(boundedAbove.smin(), zero);25 EXPECT_EQ(boundedAbove.smax(), three);26}27 28TEST(IntRangeAttrs, FromUnsigned) {29 APInt zero = APInt::getZero(64);30 APInt maxInt = APInt::getSignedMaxValue(64);31 APInt minInt = APInt::getSignedMinValue(64);32 APInt minIntPlusOne = minInt + 1;33 34 ConstantIntRanges canPortToSigned =35 ConstantIntRanges::fromUnsigned(zero, maxInt);36 EXPECT_EQ(canPortToSigned.smin(), zero);37 EXPECT_EQ(canPortToSigned.smax(), maxInt);38 39 ConstantIntRanges cantPortToSigned =40 ConstantIntRanges::fromUnsigned(zero, minInt);41 EXPECT_EQ(cantPortToSigned.smin(), minInt);42 EXPECT_EQ(cantPortToSigned.smax(), maxInt);43 44 ConstantIntRanges signedNegative =45 ConstantIntRanges::fromUnsigned(minInt, minIntPlusOne);46 EXPECT_EQ(signedNegative.smin(), minInt);47 EXPECT_EQ(signedNegative.smax(), minIntPlusOne);48}49 50TEST(IntRangeAttrs, FromSigned) {51 APInt zero = APInt::getZero(64);52 APInt one = zero + 1;53 APInt negOne = zero - 1;54 APInt intMax = APInt::getSignedMaxValue(64);55 APInt intMin = APInt::getSignedMinValue(64);56 APInt uintMax = APInt::getMaxValue(64);57 58 ConstantIntRanges noUnsignedBound =59 ConstantIntRanges::fromSigned(negOne, one);60 EXPECT_EQ(noUnsignedBound.umin(), zero);61 EXPECT_EQ(noUnsignedBound.umax(), uintMax);62 63 ConstantIntRanges positive = ConstantIntRanges::fromSigned(one, intMax);64 EXPECT_EQ(positive.umin(), one);65 EXPECT_EQ(positive.umax(), intMax);66 67 ConstantIntRanges negative = ConstantIntRanges::fromSigned(intMin, negOne);68 EXPECT_EQ(negative.umin(), intMin);69 EXPECT_EQ(negative.umax(), negOne);70 71 ConstantIntRanges preserved = ConstantIntRanges::fromSigned(zero, one);72 EXPECT_EQ(preserved.umin(), zero);73 EXPECT_EQ(preserved.umax(), one);74}75 76TEST(IntRangeAttrs, Join) {77 APInt zero = APInt::getZero(64);78 APInt one = zero + 1;79 APInt two = zero + 2;80 APInt intMin = APInt::getSignedMinValue(64);81 APInt intMax = APInt::getSignedMaxValue(64);82 APInt uintMax = APInt::getMaxValue(64);83 84 ConstantIntRanges maximal(zero, uintMax, intMin, intMax);85 ConstantIntRanges zeroOne(zero, one, zero, one);86 87 EXPECT_EQ(zeroOne.rangeUnion(maximal), maximal);88 EXPECT_EQ(maximal.rangeUnion(zeroOne), maximal);89 90 EXPECT_EQ(zeroOne.rangeUnion(zeroOne), zeroOne);91 92 ConstantIntRanges oneTwo(one, two, one, two);93 ConstantIntRanges zeroTwo(zero, two, zero, two);94 EXPECT_EQ(zeroOne.rangeUnion(oneTwo), zeroTwo);95 96 ConstantIntRanges zeroOneUnsignedOnly(zero, one, intMin, intMax);97 ConstantIntRanges zeroOneSignedOnly(zero, uintMax, zero, one);98 EXPECT_EQ(zeroOneUnsignedOnly.rangeUnion(zeroOneSignedOnly), maximal);99}100