100 lines
3.3 KiB
C++
100 lines
3.3 KiB
C++
//===- InferIntRangeInterfaceTest.cpp - Unit Tests for InferIntRange... --===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Interfaces/InferIntRangeInterface.h"
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#include "llvm/ADT/APInt.h"
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#include <limits>
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#include <gtest/gtest.h>
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using namespace mlir;
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TEST(IntRangeAttrs, BasicConstructors) {
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APInt zero = APInt::getZero(64);
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APInt two(64, 2);
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APInt three(64, 3);
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ConstantIntRanges boundedAbove(zero, two, zero, three);
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EXPECT_EQ(boundedAbove.umin(), zero);
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EXPECT_EQ(boundedAbove.umax(), two);
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EXPECT_EQ(boundedAbove.smin(), zero);
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EXPECT_EQ(boundedAbove.smax(), three);
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}
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TEST(IntRangeAttrs, FromUnsigned) {
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APInt zero = APInt::getZero(64);
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APInt maxInt = APInt::getSignedMaxValue(64);
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APInt minInt = APInt::getSignedMinValue(64);
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APInt minIntPlusOne = minInt + 1;
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ConstantIntRanges canPortToSigned =
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ConstantIntRanges::fromUnsigned(zero, maxInt);
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EXPECT_EQ(canPortToSigned.smin(), zero);
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EXPECT_EQ(canPortToSigned.smax(), maxInt);
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ConstantIntRanges cantPortToSigned =
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ConstantIntRanges::fromUnsigned(zero, minInt);
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EXPECT_EQ(cantPortToSigned.smin(), minInt);
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EXPECT_EQ(cantPortToSigned.smax(), maxInt);
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ConstantIntRanges signedNegative =
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ConstantIntRanges::fromUnsigned(minInt, minIntPlusOne);
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EXPECT_EQ(signedNegative.smin(), minInt);
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EXPECT_EQ(signedNegative.smax(), minIntPlusOne);
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}
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TEST(IntRangeAttrs, FromSigned) {
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APInt zero = APInt::getZero(64);
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APInt one = zero + 1;
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APInt negOne = zero - 1;
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APInt intMax = APInt::getSignedMaxValue(64);
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APInt intMin = APInt::getSignedMinValue(64);
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APInt uintMax = APInt::getMaxValue(64);
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ConstantIntRanges noUnsignedBound =
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ConstantIntRanges::fromSigned(negOne, one);
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EXPECT_EQ(noUnsignedBound.umin(), zero);
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EXPECT_EQ(noUnsignedBound.umax(), uintMax);
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ConstantIntRanges positive = ConstantIntRanges::fromSigned(one, intMax);
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EXPECT_EQ(positive.umin(), one);
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EXPECT_EQ(positive.umax(), intMax);
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ConstantIntRanges negative = ConstantIntRanges::fromSigned(intMin, negOne);
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EXPECT_EQ(negative.umin(), intMin);
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EXPECT_EQ(negative.umax(), negOne);
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ConstantIntRanges preserved = ConstantIntRanges::fromSigned(zero, one);
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EXPECT_EQ(preserved.umin(), zero);
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EXPECT_EQ(preserved.umax(), one);
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}
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TEST(IntRangeAttrs, Join) {
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APInt zero = APInt::getZero(64);
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APInt one = zero + 1;
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APInt two = zero + 2;
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APInt intMin = APInt::getSignedMinValue(64);
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APInt intMax = APInt::getSignedMaxValue(64);
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APInt uintMax = APInt::getMaxValue(64);
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ConstantIntRanges maximal(zero, uintMax, intMin, intMax);
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ConstantIntRanges zeroOne(zero, one, zero, one);
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EXPECT_EQ(zeroOne.rangeUnion(maximal), maximal);
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EXPECT_EQ(maximal.rangeUnion(zeroOne), maximal);
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EXPECT_EQ(zeroOne.rangeUnion(zeroOne), zeroOne);
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ConstantIntRanges oneTwo(one, two, one, two);
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ConstantIntRanges zeroTwo(zero, two, zero, two);
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EXPECT_EQ(zeroOne.rangeUnion(oneTwo), zeroTwo);
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ConstantIntRanges zeroOneUnsignedOnly(zero, one, intMin, intMax);
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ConstantIntRanges zeroOneSignedOnly(zero, uintMax, zero, one);
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EXPECT_EQ(zeroOneUnsignedOnly.rangeUnion(zeroOneSignedOnly), maximal);
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}
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