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Add isl operator overloads for isl::pw_aff (Try II)
Piecewise affine expressions have directly corresponding mathematical operators. Introduce these operators as overloads as this makes writing code with isl::pw_aff expressions more directly readable. We can now write: A = B + C instead of A = B.add(C) Reviewers: Meinersbur, bollu, sebpop Reviewed By: Meinersbur Subscribers: philip.pfaffe, pollydev, llvm-commits Differential Revision: https://reviews.llvm.org/D45534 llvm-svn: 329880
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Tobias Grosser
parent
ff6c4f3702
commit
be483ae665
185
polly/include/polly/Support/ISLOperators.h
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185
polly/include/polly/Support/ISLOperators.h
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//===------ ISLOperators.h --------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Operator overloads for isl C++ objects.
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//
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//===----------------------------------------------------------------------===//
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#ifndef POLLY_ISLOPERATORS_H
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#define POLLY_ISLOPERATORS_H
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#include "isl/isl-noexceptions.h"
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namespace polly {
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/// Addition
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/// @{
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inline isl::pw_aff operator+(isl::pw_aff Left, isl::pw_aff Right) {
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return Left.add(Right);
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}
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inline isl::pw_aff operator+(isl::val ValLeft, isl::pw_aff Right) {
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isl::pw_aff Left(Right.domain(), ValLeft);
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return Left.add(Right);
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}
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inline isl::pw_aff operator+(isl::pw_aff Left, isl::val ValRight) {
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isl::pw_aff Right(Left.domain(), ValRight);
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return Left.add(Right);
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}
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inline isl::pw_aff operator+(long IntLeft, isl::pw_aff Right) {
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isl::ctx Ctx = Right.get_ctx();
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isl::val ValLeft(Ctx, IntLeft);
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isl::pw_aff Left(Right.domain(), ValLeft);
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return Left.add(Right);
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}
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inline isl::pw_aff operator+(isl::pw_aff Left, long IntRight) {
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isl::ctx Ctx = Left.get_ctx();
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isl::val ValRight(Ctx, IntRight);
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isl::pw_aff Right(Left.domain(), ValRight);
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return Left.add(Right);
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}
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/// @}
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/// Multiplication
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/// @{
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inline isl::pw_aff operator*(isl::pw_aff Left, isl::pw_aff Right) {
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return Left.mul(Right);
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}
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inline isl::pw_aff operator*(isl::val ValLeft, isl::pw_aff Right) {
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isl::pw_aff Left(Right.domain(), ValLeft);
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return Left.mul(Right);
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}
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inline isl::pw_aff operator*(isl::pw_aff Left, isl::val ValRight) {
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isl::pw_aff Right(Left.domain(), ValRight);
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return Left.mul(Right);
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}
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inline isl::pw_aff operator*(long IntLeft, isl::pw_aff Right) {
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isl::ctx Ctx = Right.get_ctx();
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isl::val ValLeft(Ctx, IntLeft);
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isl::pw_aff Left(Right.domain(), ValLeft);
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return Left.mul(Right);
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}
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inline isl::pw_aff operator*(isl::pw_aff Left, long IntRight) {
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isl::ctx Ctx = Left.get_ctx();
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isl::val ValRight(Ctx, IntRight);
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isl::pw_aff Right(Left.domain(), ValRight);
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return Left.mul(Right);
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}
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/// @}
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/// Subtraction
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/// @{
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inline isl::pw_aff operator-(isl::pw_aff Left, isl::pw_aff Right) {
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return Left.sub(Right);
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}
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inline isl::pw_aff operator-(isl::val ValLeft, isl::pw_aff Right) {
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isl::pw_aff Left(Right.domain(), ValLeft);
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return Left.sub(Right);
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}
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inline isl::pw_aff operator-(isl::pw_aff Left, isl::val ValRight) {
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isl::pw_aff Right(Left.domain(), ValRight);
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return Left.sub(Right);
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}
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inline isl::pw_aff operator-(long IntLeft, isl::pw_aff Right) {
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isl::ctx Ctx = Right.get_ctx();
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isl::val ValLeft(Ctx, IntLeft);
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isl::pw_aff Left(Right.domain(), ValLeft);
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return Left.sub(Right);
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}
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inline isl::pw_aff operator-(isl::pw_aff Left, long IntRight) {
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isl::ctx Ctx = Left.get_ctx();
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isl::val ValRight(Ctx, IntRight);
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isl::pw_aff Right(Left.domain(), ValRight);
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return Left.sub(Right);
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}
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/// @}
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/// Division
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///
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/// This division rounds towards zero. This follows the semantics of C/C++.
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///
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/// @{
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inline isl::pw_aff operator/(isl::pw_aff Left, isl::pw_aff Right) {
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return Left.tdiv_q(Right);
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}
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inline isl::pw_aff operator/(isl::val ValLeft, isl::pw_aff Right) {
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isl::pw_aff Left(Right.domain(), ValLeft);
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return Left.tdiv_q(Right);
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}
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inline isl::pw_aff operator/(isl::pw_aff Left, isl::val ValRight) {
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isl::pw_aff Right(Left.domain(), ValRight);
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return Left.tdiv_q(Right);
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}
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inline isl::pw_aff operator/(long IntLeft, isl::pw_aff Right) {
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isl::ctx Ctx = Right.get_ctx();
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isl::val ValLeft(Ctx, IntLeft);
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isl::pw_aff Left(Right.domain(), ValLeft);
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return Left.tdiv_q(Right);
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}
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inline isl::pw_aff operator/(isl::pw_aff Left, long IntRight) {
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isl::ctx Ctx = Left.get_ctx();
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isl::val ValRight(Ctx, IntRight);
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isl::pw_aff Right(Left.domain(), ValRight);
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return Left.tdiv_q(Right);
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}
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/// @}
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/// Remainder
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///
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/// This is the remainder of a division which rounds towards zero. This follows
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/// the semantics of C/C++.
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///
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/// @{
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inline isl::pw_aff operator%(isl::pw_aff Left, isl::pw_aff Right) {
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return Left.tdiv_r(Right);
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}
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inline isl::pw_aff operator%(isl::val ValLeft, isl::pw_aff Right) {
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isl::pw_aff Left(Right.domain(), ValLeft);
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return Left.tdiv_r(Right);
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}
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inline isl::pw_aff operator%(isl::pw_aff Left, isl::val ValRight) {
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isl::pw_aff Right(Left.domain(), ValRight);
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return Left.tdiv_r(Right);
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}
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inline isl::pw_aff operator%(long IntLeft, isl::pw_aff Right) {
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isl::ctx Ctx = Right.get_ctx();
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isl::val ValLeft(Ctx, IntLeft);
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isl::pw_aff Left(Right.domain(), ValLeft);
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return Left.tdiv_r(Right);
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}
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inline isl::pw_aff operator%(isl::pw_aff Left, long IntRight) {
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isl::ctx Ctx = Left.get_ctx();
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isl::val ValRight(Ctx, IntRight);
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isl::pw_aff Right(Left.domain(), ValRight);
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return Left.tdiv_r(Right);
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}
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/// @}
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} // namespace polly
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#endif // POLLY_ISLOPERATORS_H
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@ -8,6 +8,7 @@
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//===----------------------------------------------------------------------===//
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#include "polly/Support/GICHelper.h"
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#include "polly/Support/ISLOperators.h"
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#include "polly/Support/ISLTools.h"
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#include "gtest/gtest.h"
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#include "isl/stream.h"
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@ -75,6 +76,9 @@ static bool operator==(const isl::val &LHS, const isl::val &RHS) {
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return bool(LHS.eq(RHS));
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}
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static bool operator==(const isl::pw_aff &LHS, const isl::pw_aff &RHS) {
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return bool(LHS.is_equal(RHS));
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}
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} // namespace noexceptions
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} // namespace isl
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@ -282,6 +286,105 @@ TEST(Isl, IslValToAPInt) {
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isl_ctx_free(IslCtx);
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}
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TEST(Isl, Operators) {
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std::unique_ptr<isl_ctx, decltype(&isl_ctx_free)> IslCtx(isl_ctx_alloc(),
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&isl_ctx_free);
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isl::val ValOne = isl::val(IslCtx.get(), 1);
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isl::val ValTwo = isl::val(IslCtx.get(), 2);
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isl::val ValThree = isl::val(IslCtx.get(), 3);
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isl::val ValFour = isl::val(IslCtx.get(), 4);
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isl::val ValNegOne = isl::val(IslCtx.get(), -1);
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isl::val ValNegTwo = isl::val(IslCtx.get(), -2);
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isl::val ValNegThree = isl::val(IslCtx.get(), -3);
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isl::val ValNegFour = isl::val(IslCtx.get(), -4);
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isl::space Space = isl::space(IslCtx.get(), 0, 0);
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isl::local_space LS = isl::local_space(Space);
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isl::pw_aff AffOne = isl::aff(LS, ValOne);
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isl::pw_aff AffTwo = isl::aff(LS, ValTwo);
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isl::pw_aff AffThree = isl::aff(LS, ValThree);
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isl::pw_aff AffFour = isl::aff(LS, ValFour);
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isl::pw_aff AffNegOne = isl::aff(LS, ValNegOne);
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isl::pw_aff AffNegTwo = isl::aff(LS, ValNegTwo);
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isl::pw_aff AffNegThree = isl::aff(LS, ValNegThree);
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isl::pw_aff AffNegFour = isl::aff(LS, ValNegFour);
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// Addition
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{
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EXPECT_EQ(AffOne + AffOne, AffTwo);
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EXPECT_EQ(AffOne + 1, AffTwo);
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EXPECT_EQ(1 + AffOne, AffTwo);
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EXPECT_EQ(AffOne + ValOne, AffTwo);
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EXPECT_EQ(ValOne + AffOne, AffTwo);
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}
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// Multiplication
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{
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EXPECT_EQ(AffTwo * AffTwo, AffFour);
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EXPECT_EQ(AffTwo * 2, AffFour);
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EXPECT_EQ(2 * AffTwo, AffFour);
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EXPECT_EQ(AffTwo * ValTwo, AffFour);
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EXPECT_EQ(ValTwo * AffTwo, AffFour);
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}
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// Subtraction
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{
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EXPECT_EQ(AffTwo - AffOne, AffOne);
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EXPECT_EQ(AffTwo - 1, AffOne);
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EXPECT_EQ(2 - AffOne, AffOne);
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EXPECT_EQ(AffTwo - ValOne, AffOne);
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EXPECT_EQ(ValTwo - AffOne, AffOne);
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}
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// Division
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{
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EXPECT_EQ(AffFour / AffTwo, AffTwo);
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EXPECT_EQ(AffFour / 2, AffTwo);
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EXPECT_EQ(4 / AffTwo, AffTwo);
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EXPECT_EQ(AffFour / ValTwo, AffTwo);
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EXPECT_EQ(AffFour / 2, AffTwo);
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// Dividend is negative (should be rounded towards zero)
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EXPECT_EQ(AffNegFour / AffThree, AffNegOne);
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EXPECT_EQ(AffNegFour / 3, AffNegOne);
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EXPECT_EQ((-4) / AffThree, AffNegOne);
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EXPECT_EQ(AffNegFour / ValThree, AffNegOne);
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EXPECT_EQ(AffNegFour / 3, AffNegOne);
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// Divisor is negative (should be rounded towards zero)
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EXPECT_EQ(AffFour / AffNegThree, AffNegOne);
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EXPECT_EQ(AffFour / -3, AffNegOne);
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EXPECT_EQ(4 / AffNegThree, AffNegOne);
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EXPECT_EQ(AffFour / ValNegThree, AffNegOne);
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EXPECT_EQ(AffFour / -3, AffNegOne);
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}
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// Remainder
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{
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EXPECT_EQ(AffThree % AffTwo, AffOne);
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EXPECT_EQ(AffThree % 2, AffOne);
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EXPECT_EQ(3 % AffTwo, AffOne);
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EXPECT_EQ(AffThree % ValTwo, AffOne);
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EXPECT_EQ(ValThree % AffTwo, AffOne);
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// Dividend is negative (should be rounded towards zero)
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EXPECT_EQ(AffNegFour % AffThree, AffNegOne);
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EXPECT_EQ(AffNegFour % 3, AffNegOne);
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EXPECT_EQ((-4) % AffThree, AffNegOne);
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EXPECT_EQ(AffNegFour % ValThree, AffNegOne);
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EXPECT_EQ(AffNegFour % 3, AffNegOne);
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// Divisor is negative (should be rounded towards zero)
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EXPECT_EQ(AffFour % AffNegThree, AffOne);
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EXPECT_EQ(AffFour % -3, AffOne);
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EXPECT_EQ(4 % AffNegThree, AffOne);
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EXPECT_EQ(AffFour % ValNegThree, AffOne);
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EXPECT_EQ(AffFour % -3, AffOne);
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}
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}
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TEST(Isl, Foreach) {
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std::unique_ptr<isl_ctx, decltype(&isl_ctx_free)> Ctx(isl_ctx_alloc(),
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&isl_ctx_free);
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