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//===-- RegisterValue.cpp ---------------------------------------*- 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
//
//===----------------------------------------------------------------------===//
#include "RegisterValue.h"
#include "llvm/ADT/APFloat.h"
namespace llvm {
namespace exegesis {
static llvm::APFloat getFloatValue(const llvm::fltSemantics &FltSemantics,
PredefinedValues Value) {
switch (Value) {
case PredefinedValues::POS_ZERO:
return llvm::APFloat::getZero(FltSemantics);
case PredefinedValues::NEG_ZERO:
return llvm::APFloat::getZero(FltSemantics, true);
case PredefinedValues::ONE:
return llvm::APFloat(FltSemantics, "1");
case PredefinedValues::TWO:
return llvm::APFloat(FltSemantics, "2");
case PredefinedValues::INF:
return llvm::APFloat::getInf(FltSemantics);
case PredefinedValues::QNAN:
return llvm::APFloat::getQNaN(FltSemantics);
case PredefinedValues::SMALLEST_NORM:
return llvm::APFloat::getSmallestNormalized(FltSemantics);
case PredefinedValues::LARGEST:
return llvm::APFloat::getLargest(FltSemantics);
case PredefinedValues::ULP:
return llvm::APFloat::getSmallest(FltSemantics);
case PredefinedValues::ONE_PLUS_ULP:
auto Output = getFloatValue(FltSemantics, PredefinedValues::ONE);
Output.next(false);
return Output;
}
llvm_unreachable("Unhandled exegesis::PredefinedValues");
}
llvm::APInt bitcastFloatValue(const llvm::fltSemantics &FltSemantics,
PredefinedValues Value) {
return getFloatValue(FltSemantics, Value).bitcastToAPInt();
}
} // namespace exegesis
} // namespace llvm
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