blob: 1982a6c53b2177f3ad8975320045c4718267ec1f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
//===-- RegisterValue.cpp ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "RegisterValue.h"
#include "llvm/ADT/APFloat.h"
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
|
