73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
//===-- RegisterValueTest.cpp -----------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "RegisterValue.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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namespace llvm {
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namespace exegesis {
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namespace {
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#define CHECK(EXPECTED, ACTUAL) \
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EXPECT_EQ(APInt(SizeInBits, EXPECTED, 16), \
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bitcastFloatValue(Semantic, PredefinedValues::ACTUAL))
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TEST(RegisterValueTest, Half) {
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const size_t SizeInBits = 16;
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const auto &Semantic = APFloatBase::IEEEhalf();
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CHECK("0000", POS_ZERO);
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CHECK("8000", NEG_ZERO);
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CHECK("3C00", ONE);
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CHECK("4000", TWO);
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CHECK("7C00", INF);
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CHECK("7E00", QNAN);
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CHECK("7BFF", LARGEST);
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CHECK("0400", SMALLEST_NORM);
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CHECK("0001", SMALLEST);
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CHECK("0001", ULP);
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CHECK("3C01", ONE_PLUS_ULP);
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}
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TEST(RegisterValueTest, Single) {
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const size_t SizeInBits = 32;
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const auto &Semantic = APFloatBase::IEEEsingle();
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CHECK("00000000", POS_ZERO);
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CHECK("80000000", NEG_ZERO);
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CHECK("3F800000", ONE);
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CHECK("40000000", TWO);
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CHECK("7F800000", INF);
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CHECK("7FC00000", QNAN);
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CHECK("7F7FFFFF", LARGEST);
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CHECK("00800000", SMALLEST_NORM);
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CHECK("00000001", SMALLEST);
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CHECK("00000001", ULP);
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CHECK("3F800001", ONE_PLUS_ULP);
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}
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TEST(RegisterValueTest, Double) {
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const size_t SizeInBits = 64;
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const auto &Semantic = APFloatBase::IEEEdouble();
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CHECK("0000000000000000", POS_ZERO);
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CHECK("8000000000000000", NEG_ZERO);
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CHECK("3FF0000000000000", ONE);
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CHECK("4000000000000000", TWO);
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CHECK("7FF0000000000000", INF);
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CHECK("7FF8000000000000", QNAN);
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CHECK("7FEFFFFFFFFFFFFF", LARGEST);
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CHECK("0010000000000000", SMALLEST_NORM);
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CHECK("0000000000000001", SMALLEST);
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CHECK("0000000000000001", ULP);
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CHECK("3FF0000000000001", ONE_PLUS_ULP);
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}
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} // namespace
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} // namespace exegesis
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} // namespace llvm
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