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 
12 using namespace lldb_private;
13 using llvm::APInt;
14 
15 TEST(RegisterValueTest, GetSet8) {
16   RegisterValue R8(uint8_t(47));
17   EXPECT_EQ(47u, R8.GetAsUInt8());
18   R8 = uint8_t(42);
19   EXPECT_EQ(42u, R8.GetAsUInt8());
20   EXPECT_EQ(42u, R8.GetAsUInt16());
21   EXPECT_EQ(42u, R8.GetAsUInt32());
22   EXPECT_EQ(42u, R8.GetAsUInt64());
23 }
24 
25 TEST(RegisterValueTest, GetScalarValue) {
26   using RV = RegisterValue;
27   const auto &Get = [](const RV &V) -> llvm::Optional<Scalar> {
28     Scalar S;
29     if (V.GetScalarValue(S))
30       return S;
31     return llvm::None;
32   };
33   EXPECT_EQ(Get(RV(uint8_t(47))), Scalar(47));
34   EXPECT_EQ(Get(RV(uint16_t(4747))), Scalar(4747));
35   EXPECT_EQ(Get(RV(uint32_t(47474242))), Scalar(47474242));
36   EXPECT_EQ(Get(RV(uint64_t(4747424247474242))), Scalar(4747424247474242));
37   EXPECT_EQ(Get(RV(APInt::getMaxValue(128))), Scalar(APInt::getMaxValue(128)));
38   EXPECT_EQ(Get(RV(47.5f)), Scalar(47.5f));
39   EXPECT_EQ(Get(RV(47.5)), Scalar(47.5));
40   EXPECT_EQ(Get(RV(47.5L)), Scalar(47.5L));
41   EXPECT_EQ(Get(RV({0xff, 0xee, 0xdd, 0xcc}, lldb::eByteOrderLittle)),
42             Scalar(0xccddeeff));
43   EXPECT_EQ(Get(RV({0xff, 0xee, 0xdd, 0xcc}, lldb::eByteOrderBig)),
44             Scalar(0xffeeddcc));
45   EXPECT_EQ(Get(RV({0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88, 0x77, 0x66,
46                     0x55, 0x44, 0x33, 0x22, 0x11, 0x00},
47                    lldb::eByteOrderLittle)),
48             Scalar((APInt(128, 0x0011223344556677ull) << 64) |
49                    APInt(128, 0x8899aabbccddeeff)));
50   EXPECT_EQ(Get(RV({0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88, 0x77, 0x66,
51                     0x55, 0x44, 0x33, 0x22, 0x11, 0x00},
52                    lldb::eByteOrderBig)),
53             Scalar((APInt(128, 0xffeeddccbbaa9988ull) << 64) |
54                    APInt(128, 0x7766554433221100)));
55 }
56