[Mlir-commits] [mlir] Support polynomial attributes with floating point coefficients (PR #91137)
Jeremy Kun
llvmlistbot at llvm.org
Sun May 5 11:07:12 PDT 2024
https://github.com/j2kun created https://github.com/llvm/llvm-project/pull/91137
In summary:
- `Monomial` -> `MonomialBase` with two inheriting `IntMonomial` and `FloatMonomial` for the different coefficient types
- `Polynomial` -> `PolynomialBase` with `IntPolynomial` and `FloatPolynomial` inheriting
- `PolynomialAttr` -> `IntPolynomialAttr`, and new `FloatPolynomialAttr` attribute, both of which may be input to `polynomial.constant`
- Refactoring common parts of attribute parsers.
>From bf5da2ae01e7efa0415db06625809b8f96aee77c Mon Sep 17 00:00:00 2001
From: Jeremy Kun <j2kun at users.noreply.github.com>
Date: Fri, 3 May 2024 17:27:07 -0700
Subject: [PATCH] refactor and support Float polynomials
---
.../mlir/Dialect/Polynomial/IR/Polynomial.h | 192 ++++++++++++++----
.../mlir/Dialect/Polynomial/IR/Polynomial.td | 51 +++--
mlir/lib/Dialect/Polynomial/IR/Polynomial.cpp | 79 +++----
.../Polynomial/IR/PolynomialAttributes.cpp | 123 ++++++++---
4 files changed, 308 insertions(+), 137 deletions(-)
diff --git a/mlir/include/mlir/Dialect/Polynomial/IR/Polynomial.h b/mlir/include/mlir/Dialect/Polynomial/IR/Polynomial.h
index 3325a6fa3f9fcf..5705deeadf7307 100644
--- a/mlir/include/mlir/Dialect/Polynomial/IR/Polynomial.h
+++ b/mlir/include/mlir/Dialect/Polynomial/IR/Polynomial.h
@@ -11,10 +11,13 @@
#include "mlir/Support/LLVM.h"
#include "mlir/Support/LogicalResult.h"
+#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/Hashing.h"
-#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/raw_ostream.h"
namespace mlir {
@@ -27,98 +30,201 @@ namespace polynomial {
/// would want to specify 128-bit polynomials statically in the source code.
constexpr unsigned apintBitWidth = 64;
-/// A class representing a monomial of a single-variable polynomial with integer
-/// coefficients.
-class Monomial {
+template <typename CoefficientType>
+class MonomialBase {
public:
- Monomial(int64_t coeff, uint64_t expo)
- : coefficient(apintBitWidth, coeff), exponent(apintBitWidth, expo) {}
-
- Monomial(const APInt &coeff, const APInt &expo)
+ MonomialBase(const CoefficientType &coeff, const APInt &expo)
: coefficient(coeff), exponent(expo) {}
+ virtual ~MonomialBase() = 0;
- Monomial() : coefficient(apintBitWidth, 0), exponent(apintBitWidth, 0) {}
+ const CoefficientType &getCoefficient() const { return coefficient; }
+ CoefficientType &getMutableCoefficient() { return coefficient; }
+ const APInt &getExponent() const { return exponent; }
+ void setCoefficient(const CoefficientType &coeff) { coefficient = coeff; }
+ void setExponent(const APInt &exp) { exponent = exp; }
- bool operator==(const Monomial &other) const {
+ bool operator==(const MonomialBase &other) const {
return other.coefficient == coefficient && other.exponent == exponent;
}
- bool operator!=(const Monomial &other) const {
+ bool operator!=(const MonomialBase &other) const {
return other.coefficient != coefficient || other.exponent != exponent;
}
/// Monomials are ordered by exponent.
- bool operator<(const Monomial &other) const {
+ bool operator<(const MonomialBase &other) const {
return (exponent.ult(other.exponent));
}
- friend ::llvm::hash_code hash_value(const Monomial &arg);
+ virtual bool isMonic() const = 0;
+ virtual void coefficientToString(llvm::SmallString<16> &coeffString) const = 0;
-public:
- APInt coefficient;
+ template <typename T>
+ friend ::llvm::hash_code hash_value(const MonomialBase<T> &arg);
- // Always unsigned
+protected:
+ CoefficientType coefficient;
APInt exponent;
};
-/// A single-variable polynomial with integer coefficients.
-///
-/// Eg: x^1024 + x + 1
-///
-/// The symbols used as the polynomial's indeterminate don't matter, so long as
-/// it is used consistently throughout the polynomial.
-class Polynomial {
+/// A class representing a monomial of a single-variable polynomial with integer
+/// coefficients.
+class IntMonomial : public MonomialBase<APInt> {
public:
- Polynomial() = delete;
+ IntMonomial(int64_t coeff, uint64_t expo)
+ : MonomialBase(APInt(apintBitWidth, coeff), APInt(apintBitWidth, expo)) {}
- explicit Polynomial(ArrayRef<Monomial> terms) : terms(terms){};
+ IntMonomial()
+ : MonomialBase(APInt(apintBitWidth, 0), APInt(apintBitWidth, 0)) {}
- // Returns a Polynomial from a list of monomials.
- // Fails if two monomials have the same exponent.
- static FailureOr<Polynomial> fromMonomials(ArrayRef<Monomial> monomials);
+ ~IntMonomial() = default;
- /// Returns a polynomial with coefficients given by `coeffs`. The value
- /// coeffs[i] is converted to a monomial with exponent i.
- static Polynomial fromCoefficients(ArrayRef<int64_t> coeffs);
+ bool isMonic() const override { return coefficient == 1; }
+
+ void coefficientToString(llvm::SmallString<16> &coeffString) const override {
+ coefficient.toStringSigned(coeffString);
+ }
+};
+
+/// A class representing a monomial of a single-variable polynomial with integer
+/// coefficients.
+class FloatMonomial : public MonomialBase<APFloat> {
+public:
+ FloatMonomial(double coeff, uint64_t expo)
+ : MonomialBase(APFloat(coeff), APInt(apintBitWidth, expo)) {}
+
+ FloatMonomial() : MonomialBase(APFloat((double)0), APInt(apintBitWidth, 0)) {}
+
+ ~FloatMonomial() = default;
+
+ bool isMonic() const override { return coefficient == APFloat(1.0); }
+
+ void coefficientToString(llvm::SmallString<16> &coeffString) const override {
+ coefficient.toString(coeffString);
+ }
+};
+
+template <typename Monomial>
+class PolynomialBase {
+public:
+ PolynomialBase() = delete;
+
+ explicit PolynomialBase(ArrayRef<Monomial> terms) : terms(terms){};
explicit operator bool() const { return !terms.empty(); }
- bool operator==(const Polynomial &other) const {
+ bool operator==(const PolynomialBase &other) const {
return other.terms == terms;
}
- bool operator!=(const Polynomial &other) const {
+ bool operator!=(const PolynomialBase &other) const {
return !(other.terms == terms);
}
- // Prints polynomial to 'os'.
- void print(raw_ostream &os) const;
void print(raw_ostream &os, ::llvm::StringRef separator,
- ::llvm::StringRef exponentiation) const;
+ ::llvm::StringRef exponentiation) const {
+ bool first = true;
+ for (const Monomial &term : getTerms()) {
+ if (first) {
+ first = false;
+ } else {
+ os << separator;
+ }
+ std::string coeffToPrint;
+ if (term.isMonic() && term.getExponent().uge(1)) {
+ coeffToPrint = "";
+ } else {
+ llvm::SmallString<16> coeffString;
+ term.coefficientToString(coeffString);
+ coeffToPrint = coeffString.str();
+ }
+
+ if (term.getExponent() == 0) {
+ os << coeffToPrint;
+ } else if (term.getExponent() == 1) {
+ os << coeffToPrint << "x";
+ } else {
+ llvm::SmallString<16> expString;
+ term.getExponent().toStringSigned(expString);
+ os << coeffToPrint << "x" << exponentiation << expString;
+ }
+ }
+ }
+
+ // Prints polynomial to 'os'.
+ void print(raw_ostream &os) const { print(os, " + ", "**"); }
+
void dump() const;
// Prints polynomial so that it can be used as a valid identifier
- std::string toIdentifier() const;
+ std::string toIdentifier() const {
+ std::string result;
+ llvm::raw_string_ostream os(result);
+ print(os, "_", "");
+ return os.str();
+ }
- unsigned getDegree() const;
+ unsigned getDegree() const {
+ return terms.back().getExponent().getZExtValue();
+ }
ArrayRef<Monomial> getTerms() const { return terms; }
- friend ::llvm::hash_code hash_value(const Polynomial &arg);
+ template <typename T>
+ friend ::llvm::hash_code hash_value(const PolynomialBase<T> &arg);
private:
// The monomial terms for this polynomial.
SmallVector<Monomial> terms;
};
-// Make Polynomial hashable.
-inline ::llvm::hash_code hash_value(const Polynomial &arg) {
+/// A single-variable polynomial with integer coefficients.
+///
+/// Eg: x^1024 + x + 1
+class IntPolynomial : public PolynomialBase<IntMonomial> {
+public:
+ explicit IntPolynomial(ArrayRef<IntMonomial> terms) : PolynomialBase(terms) {}
+
+ // Returns a Polynomial from a list of monomials.
+ // Fails if two monomials have the same exponent.
+ static FailureOr<IntPolynomial>
+ fromMonomials(ArrayRef<IntMonomial> monomials);
+
+ /// Returns a polynomial with coefficients given by `coeffs`. The value
+ /// coeffs[i] is converted to a monomial with exponent i.
+ static IntPolynomial fromCoefficients(ArrayRef<int64_t> coeffs);
+};
+
+/// A single-variable polynomial with double coefficients.
+///
+/// Eg: 1.0 x^1024 + 3.5 x + 1e-05
+class FloatPolynomial : public PolynomialBase<FloatMonomial> {
+public:
+ explicit FloatPolynomial(ArrayRef<FloatMonomial> terms)
+ : PolynomialBase(terms) {}
+
+ // Returns a Polynomial from a list of monomials.
+ // Fails if two monomials have the same exponent.
+ static FailureOr<FloatPolynomial>
+ fromMonomials(ArrayRef<FloatMonomial> monomials);
+
+ /// Returns a polynomial with coefficients given by `coeffs`. The value
+ /// coeffs[i] is converted to a monomial with exponent i.
+ static FloatPolynomial fromCoefficients(ArrayRef<double> coeffs);
+};
+
+// Make Polynomials hashable.
+template <typename T>
+inline ::llvm::hash_code hash_value(const PolynomialBase<T> &arg) {
return ::llvm::hash_combine_range(arg.terms.begin(), arg.terms.end());
}
-inline ::llvm::hash_code hash_value(const Monomial &arg) {
+template <typename T>
+inline ::llvm::hash_code hash_value(const MonomialBase<T> &arg) {
return llvm::hash_combine(::llvm::hash_value(arg.coefficient),
::llvm::hash_value(arg.exponent));
}
-inline raw_ostream &operator<<(raw_ostream &os, const Polynomial &polynomial) {
+template <typename T>
+inline raw_ostream &operator<<(raw_ostream &os,
+ const PolynomialBase<T> &polynomial) {
polynomial.print(os);
return os;
}
diff --git a/mlir/include/mlir/Dialect/Polynomial/IR/Polynomial.td b/mlir/include/mlir/Dialect/Polynomial/IR/Polynomial.td
index ed1f4ce8b7e599..c55ede2a41af20 100644
--- a/mlir/include/mlir/Dialect/Polynomial/IR/Polynomial.td
+++ b/mlir/include/mlir/Dialect/Polynomial/IR/Polynomial.td
@@ -60,12 +60,12 @@ class Polynomial_Attr<string name, string attrMnemonic, list<Trait> traits = []>
let mnemonic = attrMnemonic;
}
-def Polynomial_PolynomialAttr : Polynomial_Attr<"Polynomial", "polynomial"> {
- let summary = "An attribute containing a single-variable polynomial.";
+def Polynomial_IntPolynomialAttr : Polynomial_Attr<"IntPolynomial", "int_polynomial"> {
+ let summary = "An attribute containing a single-variable polynomial with integer coefficients.";
let description = [{
- A polynomial attribute represents a single-variable polynomial, which
- is used to define the modulus of a `RingAttr`, as well as to define constants
- and perform constant folding for `polynomial` ops.
+ A polynomial attribute represents a single-variable polynomial with integer
+ coefficients, which is used to define the modulus of a `RingAttr`, as well
+ as to define constants and perform constant folding for `polynomial` ops.
The polynomial must be expressed as a list of monomial terms, with addition
or subtraction between them. The choice of variable name is arbitrary, but
@@ -76,10 +76,33 @@ def Polynomial_PolynomialAttr : Polynomial_Attr<"Polynomial", "polynomial"> {
Example:
```mlir
- #poly = #polynomial.polynomial<x**1024 + 1>
+ #poly = #polynomial.int_polynomial<x**1024 + 1>
```
}];
- let parameters = (ins "::mlir::polynomial::Polynomial":$polynomial);
+ let parameters = (ins "::mlir::polynomial::IntPolynomial":$polynomial);
+ let hasCustomAssemblyFormat = 1;
+}
+
+def Polynomial_FloatPolynomialAttr : Polynomial_Attr<"FloatPolynomial", "float_polynomial"> {
+ let summary = "An attribute containing a single-variable polynomial with double precision floating point coefficients.";
+ let description = [{
+ A polynomial attribute represents a single-variable polynomial with double
+ precision floating point coefficients.
+
+ The polynomial must be expressed as a list of monomial terms, with addition
+ or subtraction between them. The choice of variable name is arbitrary, but
+ must be consistent across all the monomials used to define a single
+ attribute. The order of monomial terms is arbitrary, each monomial degree
+ must occur at most once.
+
+ Example:
+
+ ```mlir
+ #poly = #polynomial.float_polynomial<0.5 x**7 + 1.5>
+ ```
+ }];
+ let parameters = (ins "FloatPolynomial":$polynomial);
+>>>>>>> 7b132b93b70 (refactor and support Float polynomials)
let hasCustomAssemblyFormat = 1;
}
@@ -123,7 +146,7 @@ def Polynomial_RingAttr : Polynomial_Attr<"Ring", "ring"> {
let parameters = (ins
"Type": $coefficientType,
OptionalParameter<"::mlir::IntegerAttr">: $coefficientModulus,
- OptionalParameter<"::mlir::polynomial::PolynomialAttr">: $polynomialModulus,
+ OptionalParameter<"::mlir::polynomial::IntPolynomialAttr">: $polynomialModulus,
OptionalParameter<"::mlir::IntegerAttr">: $primitiveRoot
);
@@ -131,7 +154,7 @@ def Polynomial_RingAttr : Polynomial_Attr<"Ring", "ring"> {
AttrBuilder<
(ins "::mlir::Type":$coefficientTy,
"::mlir::IntegerAttr":$coefficientModulusAttr,
- "::mlir::polynomial::PolynomialAttr":$polynomialModulusAttr), [{
+ "::mlir::polynomial::IntPolynomialAttr":$polynomialModulusAttr), [{
return $_get($_ctxt, coefficientTy, coefficientModulusAttr, polynomialModulusAttr, nullptr);
}]>
];
@@ -405,10 +428,14 @@ def Polynomial_ToTensorOp : Polynomial_Op<"to_tensor", [Pure]> {
let arguments = (ins Polynomial_PolynomialType:$input);
let results = (outs RankedTensorOf<[AnyInteger]>:$output);
let assemblyFormat = "$input attr-dict `:` type($input) `->` type($output)";
-
let hasVerifier = 1;
}
+def Polynomial_AnyPolynomialAttr : AnyAttrOf<[
+ Polynomial_FloatPolynomialAttr,
+ Polynomial_IntPolynomialAttr
+]>;
+
def Polynomial_ConstantOp : Polynomial_Op<"constant", [Pure]> {
let summary = "Define a constant polynomial via an attribute.";
let description = [{
@@ -420,9 +447,9 @@ def Polynomial_ConstantOp : Polynomial_Op<"constant", [Pure]> {
%0 = polynomial.constant #polynomial.polynomial<1 + x**2> : !polynomial.polynomial<#ring>
```
}];
- let arguments = (ins Polynomial_PolynomialAttr:$input);
+ let arguments = (ins Polynomial_AnyPolynomialAttr:$input);
let results = (outs Polynomial_PolynomialType:$output);
- let assemblyFormat = "$input attr-dict `:` type($output)";
+ let assemblyFormat = "operands attr-dict `:` type($output)";
}
def Polynomial_NTTOp : Polynomial_Op<"ntt", [Pure]> {
diff --git a/mlir/lib/Dialect/Polynomial/IR/Polynomial.cpp b/mlir/lib/Dialect/Polynomial/IR/Polynomial.cpp
index 5916ffba78e246..9d0d38ba927e25 100644
--- a/mlir/lib/Dialect/Polynomial/IR/Polynomial.cpp
+++ b/mlir/lib/Dialect/Polynomial/IR/Polynomial.cpp
@@ -9,87 +9,64 @@
#include "mlir/Dialect/Polynomial/IR/Polynomial.h"
#include "mlir/Support/LogicalResult.h"
-#include "llvm/ADT/APInt.h"
-#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/Support/raw_ostream.h"
namespace mlir {
namespace polynomial {
-FailureOr<Polynomial> Polynomial::fromMonomials(ArrayRef<Monomial> monomials) {
+template <typename T>
+MonomialBase<T>::~MonomialBase() {}
+
+template <typename PolyT, typename MonomialT>
+FailureOr<PolyT> fromMonomialsImpl(ArrayRef<MonomialT> monomials) {
// A polynomial's terms are canonically stored in order of increasing degree.
- auto monomialsCopy = llvm::SmallVector<Monomial>(monomials);
+ auto monomialsCopy = llvm::SmallVector<MonomialT>(monomials);
std::sort(monomialsCopy.begin(), monomialsCopy.end());
// Ensure non-unique exponents are not present. Since we sorted the list by
// exponent, a linear scan of adjancent monomials suffices.
if (std::adjacent_find(monomialsCopy.begin(), monomialsCopy.end(),
- [](const Monomial &lhs, const Monomial &rhs) {
- return lhs.exponent == rhs.exponent;
+ [](const MonomialT &lhs, const MonomialT &rhs) {
+ return lhs.getExponent() == rhs.getExponent();
}) != monomialsCopy.end()) {
return failure();
}
- return Polynomial(monomialsCopy);
+ return PolyT(monomialsCopy);
+}
+
+
+FailureOr<IntPolynomial>
+IntPolynomial::fromMonomials(ArrayRef<IntMonomial> monomials) {
+ return fromMonomialsImpl<IntPolynomial, IntMonomial>(monomials);
+}
+
+FailureOr<FloatPolynomial>
+FloatPolynomial::fromMonomials(ArrayRef<FloatMonomial> monomials) {
+ return fromMonomialsImpl<FloatPolynomial, FloatMonomial>(monomials);
}
-Polynomial Polynomial::fromCoefficients(ArrayRef<int64_t> coeffs) {
- llvm::SmallVector<Monomial> monomials;
+template <typename PolyT, typename MonomialT, typename CoeffT>
+PolyT fromCoefficientsImpl(ArrayRef<CoeffT> coeffs) {
+ llvm::SmallVector<MonomialT> monomials;
auto size = coeffs.size();
monomials.reserve(size);
for (size_t i = 0; i < size; i++) {
monomials.emplace_back(coeffs[i], i);
}
- auto result = Polynomial::fromMonomials(monomials);
+ auto result = PolyT::fromMonomials(monomials);
// Construction guarantees unique exponents, so the failure mode of
// fromMonomials can be bypassed.
assert(succeeded(result));
return result.value();
}
-void Polynomial::print(raw_ostream &os, ::llvm::StringRef separator,
- ::llvm::StringRef exponentiation) const {
- bool first = true;
- for (const Monomial &term : terms) {
- if (first) {
- first = false;
- } else {
- os << separator;
- }
- std::string coeffToPrint;
- if (term.coefficient == 1 && term.exponent.uge(1)) {
- coeffToPrint = "";
- } else {
- llvm::SmallString<16> coeffString;
- term.coefficient.toStringSigned(coeffString);
- coeffToPrint = coeffString.str();
- }
-
- if (term.exponent == 0) {
- os << coeffToPrint;
- } else if (term.exponent == 1) {
- os << coeffToPrint << "x";
- } else {
- llvm::SmallString<16> expString;
- term.exponent.toStringSigned(expString);
- os << coeffToPrint << "x" << exponentiation << expString;
- }
- }
-}
-
-void Polynomial::print(raw_ostream &os) const { print(os, " + ", "**"); }
-
-std::string Polynomial::toIdentifier() const {
- std::string result;
- llvm::raw_string_ostream os(result);
- print(os, "_", "");
- return os.str();
+IntPolynomial IntPolynomial::fromCoefficients(ArrayRef<int64_t> coeffs) {
+ return fromCoefficientsImpl<IntPolynomial, IntMonomial, int64_t>(coeffs);
}
-unsigned Polynomial::getDegree() const {
- return terms.back().exponent.getZExtValue();
+FloatPolynomial FloatPolynomial::fromCoefficients(ArrayRef<double> coeffs) {
+ return fromCoefficientsImpl<FloatPolynomial, FloatMonomial, double>(coeffs);
}
} // namespace polynomial
diff --git a/mlir/lib/Dialect/Polynomial/IR/PolynomialAttributes.cpp b/mlir/lib/Dialect/Polynomial/IR/PolynomialAttributes.cpp
index 236bb789663529..c91ad9b979879c 100644
--- a/mlir/lib/Dialect/Polynomial/IR/PolynomialAttributes.cpp
+++ b/mlir/lib/Dialect/Polynomial/IR/PolynomialAttributes.cpp
@@ -10,6 +10,7 @@
#include "mlir/Dialect/Polynomial/IR/Polynomial.h"
#include "mlir/Support/LLVM.h"
#include "mlir/Support/LogicalResult.h"
+#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSet.h"
@@ -17,22 +18,33 @@
namespace mlir {
namespace polynomial {
-void PolynomialAttr::print(AsmPrinter &p) const {
- p << '<';
- p << getPolynomial();
- p << '>';
+void IntPolynomialAttr::print(AsmPrinter &p) const {
+ p << '<' << getPolynomial() << '>';
}
+void FloatPolynomialAttr::print(AsmPrinter &p) const {
+ p << '<' << getPolynomial() << '>';
+}
+
+/// A callable that parses the coefficient using the appropriate method for the
+/// given monomial type, and stores the parsed coefficient value on the
+/// monomial.
+template <typename CoefficientType>
+using ParseCoefficientFn =
+ std::function<OptionalParseResult(CoefficientType &)>;
+
/// Try to parse a monomial. If successful, populate the fields of the outparam
/// `monomial` with the results, and the `variable` outparam with the parsed
/// variable name. Sets shouldParseMore to true if the monomial is followed by
/// a '+'.
-ParseResult parseMonomial(AsmParser &parser, Monomial &monomial,
- llvm::StringRef &variable, bool &isConstantTerm,
- bool &shouldParseMore) {
- APInt parsedCoeff(apintBitWidth, 1);
- auto parsedCoeffResult = parser.parseOptionalInteger(parsedCoeff);
- monomial.coefficient = parsedCoeff;
+///
+template <typename Monomial, typename CoefficientType>
+ParseResult
+parseMonomial(AsmParser &parser, Monomial &monomial, llvm::StringRef &variable,
+ bool &isConstantTerm, bool &shouldParseMore,
+ ParseCoefficientFn<CoefficientType> parseAndStoreCoefficient) {
+ OptionalParseResult parsedCoeffResult =
+ parseAndStoreCoefficient(monomial.getMutableCoefficient());
isConstantTerm = false;
shouldParseMore = false;
@@ -44,7 +56,7 @@ ParseResult parseMonomial(AsmParser &parser, Monomial &monomial,
if (!parsedCoeffResult.has_value()) {
return failure();
}
- monomial.exponent = APInt(apintBitWidth, 0);
+ monomial.setExponent(APInt(apintBitWidth, 0));
isConstantTerm = true;
shouldParseMore = true;
return success();
@@ -58,7 +70,7 @@ ParseResult parseMonomial(AsmParser &parser, Monomial &monomial,
return failure();
}
- monomial.exponent = APInt(apintBitWidth, 0);
+ monomial.setExponent(APInt(apintBitWidth, 0));
isConstantTerm = true;
return success();
}
@@ -80,9 +92,9 @@ ParseResult parseMonomial(AsmParser &parser, Monomial &monomial,
return failure();
}
- monomial.exponent = parsedExponent;
+ monomial.setExponent(parsedExponent);
} else {
- monomial.exponent = APInt(apintBitWidth, 1);
+ monomial.setExponent(APInt(apintBitWidth, 1));
}
if (succeeded(parser.parseOptionalPlus())) {
@@ -91,22 +103,21 @@ ParseResult parseMonomial(AsmParser &parser, Monomial &monomial,
return success();
}
-Attribute PolynomialAttr::parse(AsmParser &parser, Type type) {
- if (failed(parser.parseLess()))
- return {};
-
- llvm::SmallVector<Monomial> monomials;
- llvm::StringSet<> variables;
-
+template <typename PolynoimalAttrTy, typename Monomial, typename CoefficientTy>
+LogicalResult parsePolynomialAttr(
+ AsmParser &parser, llvm::SmallVector<Monomial> &monomials,
+ llvm::StringSet<> &variables,
+ ParseCoefficientFn<CoefficientTy> parseAndStoreCoefficient) {
while (true) {
Monomial parsedMonomial;
llvm::StringRef parsedVariableRef;
bool isConstantTerm;
bool shouldParseMore;
- if (failed(parseMonomial(parser, parsedMonomial, parsedVariableRef,
- isConstantTerm, shouldParseMore))) {
+ if (failed(parseMonomial<Monomial, CoefficientTy>(
+ parser, parsedMonomial, parsedVariableRef, isConstantTerm,
+ shouldParseMore, parseAndStoreCoefficient))) {
parser.emitError(parser.getCurrentLocation(), "expected a monomial");
- return {};
+ return failure();
}
if (!isConstantTerm) {
@@ -124,7 +135,7 @@ Attribute PolynomialAttr::parse(AsmParser &parser, Type type) {
parser.emitError(
parser.getCurrentLocation(),
"expected + and more monomials, or > to end polynomial attribute");
- return {};
+ return failure();
}
if (variables.size() > 1) {
@@ -133,15 +144,65 @@ Attribute PolynomialAttr::parse(AsmParser &parser, Type type) {
parser.getCurrentLocation(),
"polynomials must have one indeterminate, but there were multiple: " +
vars);
+ return failure();
+ }
+
+ return success();
+}
+
+Attribute IntPolynomialAttr::parse(AsmParser &parser, Type type) {
+ if (failed(parser.parseLess()))
+ return {};
+
+ llvm::SmallVector<IntMonomial> monomials;
+ llvm::StringSet<> variables;
+
+ if (failed(parsePolynomialAttr<IntPolynomialAttr, IntMonomial, APInt>(
+ parser, monomials, variables,
+ [&](APInt &coeff) -> OptionalParseResult {
+ return parser.parseOptionalInteger(coeff);
+ }))) {
+ return {};
+ }
+
+ auto result = IntPolynomial::fromMonomials(monomials);
+ if (failed(result)) {
+ parser.emitError(parser.getCurrentLocation())
+ << "parsed polynomial must have unique exponents among monomials";
+ return {};
+ }
+ return IntPolynomialAttr::get(parser.getContext(), result.value());
+}
+
+Attribute FloatPolynomialAttr::parse(AsmParser &parser, Type type) {
+ if (failed(parser.parseLess()))
+ return {};
+
+ llvm::SmallVector<FloatMonomial> monomials;
+ llvm::StringSet<> variables;
+
+ ParseCoefficientFn<APFloat> parseAndStoreCoefficient =
+ [&](APFloat &coeff) -> OptionalParseResult {
+ double coeffValue;
+ ParseResult result = parser.parseFloat(coeffValue);
+ if (succeeded(result)) {
+ coeff = APFloat(coeffValue);
+ }
+ return OptionalParseResult(result);
+ };
+
+ if (failed(parsePolynomialAttr<FloatPolynomialAttr, FloatMonomial, APFloat>(
+ parser, monomials, variables, parseAndStoreCoefficient))) {
+ return {};
}
- auto result = Polynomial::fromMonomials(monomials);
+ auto result = FloatPolynomial::fromMonomials(monomials);
if (failed(result)) {
parser.emitError(parser.getCurrentLocation())
<< "parsed polynomial must have unique exponents among monomials";
return {};
}
- return PolynomialAttr::get(parser.getContext(), result.value());
+ return FloatPolynomialAttr::get(parser.getContext(), result.value());
}
void RingAttr::print(AsmPrinter &p) const {
@@ -191,18 +252,18 @@ Attribute RingAttr::parse(AsmParser &parser, Type type) {
return {};
}
- PolynomialAttr polyAttr = nullptr;
+ IntPolynomialAttr polyAttr = nullptr;
if (succeeded(parser.parseKeyword("polynomialModulus"))) {
if (failed(parser.parseEqual()))
return {};
- PolynomialAttr attr;
- if (failed(parser.parseAttribute<PolynomialAttr>(attr)))
+ IntPolynomialAttr attr;
+ if (failed(parser.parseAttribute<IntPolynomialAttr>(attr)))
return {};
polyAttr = attr;
}
- Polynomial poly = polyAttr.getPolynomial();
+ IntPolynomial poly = polyAttr.getPolynomial();
APInt root(coefficientModulusAttr.getValue().getBitWidth(), 0);
IntegerAttr rootAttr = nullptr;
if (succeeded(parser.parseOptionalComma())) {
More information about the Mlir-commits
mailing list