73 lines · cpp
1//===-- RegisterValueTest.cpp -----------------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "RegisterValue.h"10#include "gmock/gmock.h"11#include "gtest/gtest.h"12 13namespace llvm {14namespace exegesis {15 16namespace {17 18#define CHECK(EXPECTED, ACTUAL) \19 EXPECT_EQ(APInt(SizeInBits, EXPECTED, 16), \20 bitcastFloatValue(Semantic, PredefinedValues::ACTUAL))21 22TEST(RegisterValueTest, Half) {23 const size_t SizeInBits = 16;24 const auto &Semantic = APFloatBase::IEEEhalf();25 CHECK("0000", POS_ZERO);26 CHECK("8000", NEG_ZERO);27 CHECK("3C00", ONE);28 CHECK("4000", TWO);29 CHECK("7C00", INF);30 CHECK("7E00", QNAN);31 CHECK("7BFF", LARGEST);32 CHECK("0400", SMALLEST_NORM);33 CHECK("0001", SMALLEST);34 CHECK("0001", ULP);35 CHECK("3C01", ONE_PLUS_ULP);36}37 38TEST(RegisterValueTest, Single) {39 const size_t SizeInBits = 32;40 const auto &Semantic = APFloatBase::IEEEsingle();41 CHECK("00000000", POS_ZERO);42 CHECK("80000000", NEG_ZERO);43 CHECK("3F800000", ONE);44 CHECK("40000000", TWO);45 CHECK("7F800000", INF);46 CHECK("7FC00000", QNAN);47 CHECK("7F7FFFFF", LARGEST);48 CHECK("00800000", SMALLEST_NORM);49 CHECK("00000001", SMALLEST);50 CHECK("00000001", ULP);51 CHECK("3F800001", ONE_PLUS_ULP);52}53 54TEST(RegisterValueTest, Double) {55 const size_t SizeInBits = 64;56 const auto &Semantic = APFloatBase::IEEEdouble();57 CHECK("0000000000000000", POS_ZERO);58 CHECK("8000000000000000", NEG_ZERO);59 CHECK("3FF0000000000000", ONE);60 CHECK("4000000000000000", TWO);61 CHECK("7FF0000000000000", INF);62 CHECK("7FF8000000000000", QNAN);63 CHECK("7FEFFFFFFFFFFFFF", LARGEST);64 CHECK("0010000000000000", SMALLEST_NORM);65 CHECK("0000000000000001", SMALLEST);66 CHECK("0000000000000001", ULP);67 CHECK("3FF0000000000001", ONE_PLUS_ULP);68}69 70} // namespace71} // namespace exegesis72} // namespace llvm73