1 | //===-- RegisterValueTest.cpp ---------------------------------------------===// |
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-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #include "lldb/Utility/RegisterValue.h" |
10 | #include "gtest/gtest.h" |
11 | #include <optional> |
12 | |
13 | using namespace lldb_private; |
14 | using llvm::APInt; |
15 | |
16 | TEST(RegisterValueTest, GetSet8) { |
17 | RegisterValue R8(uint8_t(47)); |
18 | EXPECT_EQ(47u, R8.GetAsUInt8()); |
19 | R8 = uint8_t(42); |
20 | EXPECT_EQ(42u, R8.GetAsUInt8()); |
21 | EXPECT_EQ(42u, R8.GetAsUInt16()); |
22 | EXPECT_EQ(42u, R8.GetAsUInt32()); |
23 | EXPECT_EQ(42u, R8.GetAsUInt64()); |
24 | } |
25 | |
26 | TEST(RegisterValueTest, GetScalarValue) { |
27 | using RV = RegisterValue; |
28 | const auto &Get = [](const RV &V) -> std::optional<Scalar> { |
29 | Scalar S; |
30 | if (V.GetScalarValue(scalar&: S)) |
31 | return S; |
32 | return std::nullopt; |
33 | }; |
34 | EXPECT_EQ(Get(RV(uint8_t(47))), Scalar(47)); |
35 | EXPECT_EQ(Get(RV(uint16_t(4747))), Scalar(4747)); |
36 | EXPECT_EQ(Get(RV(uint32_t(47474242))), Scalar(47474242)); |
37 | EXPECT_EQ(Get(RV(uint64_t(4747424247474242))), Scalar(4747424247474242)); |
38 | EXPECT_EQ(Get(RV(APInt::getMaxValue(128))), Scalar(APInt::getMaxValue(128))); |
39 | EXPECT_EQ(Get(RV(47.5f)), Scalar(47.5f)); |
40 | EXPECT_EQ(Get(RV(47.5)), Scalar(47.5)); |
41 | EXPECT_EQ(Get(RV(47.5L)), Scalar(47.5L)); |
42 | EXPECT_EQ(Get(RV({0xff, 0xee, 0xdd, 0xcc}, lldb::eByteOrderLittle)), |
43 | Scalar(0xccddeeff)); |
44 | EXPECT_EQ(Get(RV({0xff, 0xee, 0xdd, 0xcc}, lldb::eByteOrderBig)), |
45 | Scalar(0xffeeddcc)); |
46 | EXPECT_EQ(Get(RV({0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88, 0x77, 0x66, |
47 | 0x55, 0x44, 0x33, 0x22, 0x11, 0x00}, |
48 | lldb::eByteOrderLittle)), |
49 | Scalar((APInt(128, 0x0011223344556677ull) << 64) | |
50 | APInt(128, 0x8899aabbccddeeff))); |
51 | EXPECT_EQ(Get(RV({0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88, 0x77, 0x66, |
52 | 0x55, 0x44, 0x33, 0x22, 0x11, 0x00}, |
53 | lldb::eByteOrderBig)), |
54 | Scalar((APInt(128, 0xffeeddccbbaa9988ull) << 64) | |
55 | APInt(128, 0x7766554433221100))); |
56 | } |
57 | |