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//===- llvm/unittest/IR/ShuffleVectorInstTest.cpp - Shuffle unit tests ----===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/IR/Instructions.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(ShuffleVectorInst, isIdentityMask) {
ASSERT_TRUE(ShuffleVectorInst::isIdentityMask({0, 1, 2, 3}));
ASSERT_TRUE(ShuffleVectorInst::isIdentityMask({0, 1, 2, 3, -1}));
ASSERT_TRUE(ShuffleVectorInst::isIdentityMask({0, 1, -1, 3}));
ASSERT_FALSE(ShuffleVectorInst::isIdentityMask({0, 1, 2, 4}));
ASSERT_FALSE(ShuffleVectorInst::isIdentityMask({0, -1, 2, 4}));
}
TEST(ShuffleVectorInst, isSelectMask) {
ASSERT_TRUE(ShuffleVectorInst::isSelectMask({0, 5, 6, 3}));
ASSERT_FALSE(ShuffleVectorInst::isSelectMask({0, 1, 2, 3}));
}
TEST(ShuffleVectorInst, isReverseMask) {
ASSERT_TRUE(ShuffleVectorInst::isReverseMask({3, 2, 1, 0}));
ASSERT_TRUE(ShuffleVectorInst::isReverseMask({-1, -1, 1, 0}));
ASSERT_FALSE(ShuffleVectorInst::isReverseMask({4, 3, 2, 1}));
}
TEST(ShuffleVectorInst, isZeroEltSplatMask) {
ASSERT_TRUE(ShuffleVectorInst::isZeroEltSplatMask({0, 0, 0, 0}));
ASSERT_TRUE(ShuffleVectorInst::isZeroEltSplatMask({0, -1, 0, -1}));
ASSERT_FALSE(ShuffleVectorInst::isZeroEltSplatMask({1, 1, 1, 1}));
}
TEST(ShuffleVectorInst, isTransposeMask) {
ASSERT_TRUE(ShuffleVectorInst::isTransposeMask({0, 4, 2, 6}));
ASSERT_TRUE(ShuffleVectorInst::isTransposeMask({1, 5, 3, 7}));
ASSERT_FALSE(ShuffleVectorInst::isTransposeMask({2, 6, 4, 8}));
}
TEST(ShuffleVectorInst, isSpliceMask) {
int Index;
ASSERT_TRUE(ShuffleVectorInst::isSpliceMask({0, 1, 2, 3}, Index));
ASSERT_EQ(0, Index);
ASSERT_TRUE(ShuffleVectorInst::isSpliceMask({1, 2, 3, 4, 5, 6, 7}, Index));
ASSERT_EQ(1, Index);
ASSERT_FALSE(ShuffleVectorInst::isSpliceMask({4, 5, 6, 7}, Index));
}
TEST(ShuffleVectorInst, isExtractSubvectorMask) {
int Index;
ASSERT_TRUE(
ShuffleVectorInst::isExtractSubvectorMask({0, 1, 2, 3}, 8, Index));
ASSERT_EQ(0, Index);
ASSERT_TRUE(
ShuffleVectorInst::isExtractSubvectorMask({-1, 3, 4, 5}, 8, Index));
ASSERT_EQ(2, Index);
ASSERT_FALSE(
ShuffleVectorInst::isExtractSubvectorMask({1, 2, 3, -1}, 4, Index));
}
TEST(ShuffleVectorInst, isInsertSubvectorMask) {
int NumSubElts, Index;
ASSERT_TRUE(ShuffleVectorInst::isInsertSubvectorMask(
{8, 9, 10, 11, 4, 5, 6, 7}, 8, NumSubElts, Index));
ASSERT_EQ(0, Index);
ASSERT_EQ(4, NumSubElts);
ASSERT_TRUE(
ShuffleVectorInst::isInsertSubvectorMask({0, 2}, 2, NumSubElts, Index));
ASSERT_EQ(1, Index);
ASSERT_EQ(1, NumSubElts);
}
TEST(ShuffleVectorInst, isReplicationMask) {
int ReplicationFactor, VF;
ASSERT_TRUE(ShuffleVectorInst::isReplicationMask({0, 0, 1, 1, 2, 2, 3, 3},
ReplicationFactor, VF));
ASSERT_EQ(2, ReplicationFactor);
ASSERT_EQ(4, VF);
ASSERT_TRUE(ShuffleVectorInst::isReplicationMask(
{0, 0, 0, 1, 1, 1, -1, -1, -1, 3, 3, 3, 4, 4, 4}, ReplicationFactor, VF));
ASSERT_EQ(3, ReplicationFactor);
ASSERT_EQ(5, VF);
}
TEST(ShuffleVectorInst, isOneUseSingleSourceMask) {
ASSERT_TRUE(
ShuffleVectorInst::isOneUseSingleSourceMask({0, 1, 2, 3, 3, 2, 0, 1}, 4));
ASSERT_TRUE(
ShuffleVectorInst::isOneUseSingleSourceMask({2, 3, 4, 5, 6, 7, 0, 1}, 8));
ASSERT_FALSE(ShuffleVectorInst::isOneUseSingleSourceMask(
{0, -1, 2, 3, 3, 2, 0, 1}, 4));
ASSERT_FALSE(
ShuffleVectorInst::isOneUseSingleSourceMask({0, 1, 2, 3, 3, 3, 1, 0}, 4));
}
} // end anonymous namespace
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