mirror of
https://github.com/hedge-dev/XenonRecomp.git
synced 2025-06-06 18:31:03 +00:00
71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
//===--- Assumptions.h - Assumption handling and organization ---*- C++ -*-===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// String assumptions that are known to optimization passes should be placed in
|
|
// the KnownAssumptionStrings set. This can be done in various ways, i.a.,
|
|
// via a static KnownAssumptionString object.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_IR_ASSUMPTIONS_H
|
|
#define LLVM_IR_ASSUMPTIONS_H
|
|
|
|
#include "llvm/ADT/DenseSet.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/ADT/StringSet.h"
|
|
|
|
namespace llvm {
|
|
|
|
class Function;
|
|
class CallBase;
|
|
|
|
/// The key we use for assumption attributes.
|
|
constexpr StringRef AssumptionAttrKey = "llvm.assume";
|
|
|
|
/// A set of known assumption strings that are accepted without warning and
|
|
/// which can be recommended as typo correction.
|
|
extern StringSet<> KnownAssumptionStrings;
|
|
|
|
/// Helper that allows to insert a new assumption string in the known assumption
|
|
/// set by creating a (static) object.
|
|
struct KnownAssumptionString {
|
|
KnownAssumptionString(StringRef AssumptionStr)
|
|
: AssumptionStr(AssumptionStr) {
|
|
KnownAssumptionStrings.insert(AssumptionStr);
|
|
}
|
|
operator StringRef() const { return AssumptionStr; }
|
|
|
|
private:
|
|
StringRef AssumptionStr;
|
|
};
|
|
|
|
/// Return true if \p F has the assumption \p AssumptionStr attached.
|
|
bool hasAssumption(const Function &F,
|
|
const KnownAssumptionString &AssumptionStr);
|
|
|
|
/// Return true if \p CB or the callee has the assumption \p AssumptionStr
|
|
/// attached.
|
|
bool hasAssumption(const CallBase &CB,
|
|
const KnownAssumptionString &AssumptionStr);
|
|
|
|
/// Return the set of all assumptions for the function \p F.
|
|
DenseSet<StringRef> getAssumptions(const Function &F);
|
|
|
|
/// Return the set of all assumptions for the call \p CB.
|
|
DenseSet<StringRef> getAssumptions(const CallBase &CB);
|
|
|
|
/// Appends the set of assumptions \p Assumptions to \F.
|
|
bool addAssumptions(Function &F, const DenseSet<StringRef> &Assumptions);
|
|
|
|
/// Appends the set of assumptions \p Assumptions to \CB.
|
|
bool addAssumptions(CallBase &CB, const DenseSet<StringRef> &Assumptions);
|
|
|
|
} // namespace llvm
|
|
|
|
#endif
|