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//===- ScheduleOptimizerTest.cpp ------------------------------------------===//
//
// 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 "polly/ScheduleOptimizer.h"
#include "gtest/gtest.h"
#include "isl/stream.h"
#include "isl/val.h"
using namespace isl;
namespace {
TEST(ScheduleOptimizer, getPartialTilePrefixes) {
isl_ctx *ctx = isl_ctx_alloc();
{
// Verify that for a loop with 3 iterations starting at 0 that is
// pre-vectorized (strip-mined with a factor of 2), we correctly identify
// that only the first two iterations are full vector iterations.
isl::map Schedule(
ctx, "{[i] -> [floor(i/2), i - 2 * floor(i/2)] : 0 <= i < 3 }");
isl::set ScheduleRange = Schedule.range();
isl::set Result = getPartialTilePrefixes(ScheduleRange, 2);
EXPECT_TRUE(Result.is_equal(isl::set(ctx, "{[0]}")));
}
{
// Verify that for a loop with 3 iterations starting at 1 that is
// pre-vectorized (strip-mined with a factor of 2), we correctly identify
// that only the last two iterations are full vector iterations.
isl::map Schedule(
ctx, "{[i] -> [floor(i/2), i - 2 * floor(i/2)] : 1 <= i < 4 }");
isl::set ScheduleRange = Schedule.range();
isl::set Result = getPartialTilePrefixes(ScheduleRange, 2);
EXPECT_TRUE(Result.is_equal(isl::set(ctx, "{[1]}")));
}
{
// Verify that for a loop with 6 iterations starting at 1 that is
// pre-vectorized (strip-mined with a factor of 2), we correctly identify
// that all but the first and the last iteration are full vector iterations.
isl::map Schedule(
ctx, "{[i] -> [floor(i/2), i - 2 * floor(i/2)] : 1 <= i < 6 }");
isl::set ScheduleRange = Schedule.range();
isl::set Result = getPartialTilePrefixes(ScheduleRange, 2);
EXPECT_TRUE(Result.is_equal(isl::set(ctx, "{[1]; [2]}")));
}
isl_ctx_free(ctx);
}
} // anonymous namespace
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