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//===-- ScalarTest.cpp ------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "lldb/Utility/DataExtractor.h"
#include "lldb/Utility/Endian.h"
#include "lldb/Utility/Scalar.h"
#include "lldb/Utility/Status.h"
#include "lldb/Utility/StreamString.h"
#include "llvm/Testing/Support/Error.h"
using namespace lldb_private;
using namespace llvm;
template <typename T>
bool checkInequality(T c1, T c2) {
return (Scalar(c1) != Scalar(c2));
}
template <typename T>
bool checkEquality(T c1, T c2) {
return (Scalar(c1) == Scalar(c2));
}
TEST(ScalarTest, Equality) {
ASSERT_TRUE(checkInequality<int>(23, 24));
ASSERT_TRUE(checkEquality<int>(96, 96));
ASSERT_TRUE(checkInequality<float>(4.0f, 4.5f));
ASSERT_TRUE(checkEquality<float>(4.0f, 4.0f));
auto apint1 = APInt(64, 234);
auto apint2 = APInt(64, 246);
ASSERT_TRUE(checkInequality<APInt>(apint1, apint2));
ASSERT_TRUE(checkEquality<APInt>(apint1, apint1));
Scalar void1;
Scalar void2;
float f1 = 2.0;
ASSERT_TRUE(void1 == void2);
ASSERT_FALSE(void1 == Scalar(f1));
}
TEST(ScalarTest, Comparison) {
auto s1 = Scalar(23);
auto s2 = Scalar(46);
ASSERT_TRUE(s1 < s2);
ASSERT_TRUE(s1 <= s2);
ASSERT_TRUE(s2 > s1);
ASSERT_TRUE(s2 >= s1);
}
TEST(ScalarTest, ComparisonFloat) {
auto s1 = Scalar(23.0f);
auto s2 = Scalar(46.0f);
ASSERT_TRUE(s1 < s2);
ASSERT_TRUE(s1 <= s2);
ASSERT_TRUE(s2 > s1);
ASSERT_TRUE(s2 >= s1);
}
TEST(ScalarTest, RightShiftOperator) {
int a = 0x00001000;
int b = 0xFFFFFFFF;
int c = 4;
Scalar a_scalar(a);
Scalar b_scalar(b);
Scalar c_scalar(c);
ASSERT_EQ(a >> c, a_scalar >> c_scalar);
ASSERT_EQ(b >> c, b_scalar >> c_scalar);
}
TEST(ScalarTest, GetBytes) {
int a = 0x01020304;
long long b = 0x0102030405060708LL;
float c = 1234567.89e32f;
double d = 1234567.89e42;
char e[16] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
char f[32] = {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};
Scalar a_scalar(a);
Scalar b_scalar(b);
Scalar c_scalar(c);
Scalar d_scalar(d);
Scalar e_scalar;
Scalar f_scalar;
DataExtractor e_data(e, sizeof(e), endian::InlHostByteOrder(),
sizeof(void *));
Status e_error =
e_scalar.SetValueFromData(e_data, lldb::eEncodingUint, sizeof(e));
DataExtractor f_data(f, sizeof(f), endian::InlHostByteOrder(),
sizeof(void *));
Status f_error =
f_scalar.SetValueFromData(f_data, lldb::eEncodingUint, sizeof(f));
ASSERT_EQ(0, memcmp(&a, a_scalar.GetBytes(), sizeof(a)));
ASSERT_EQ(0, memcmp(&b, b_scalar.GetBytes(), sizeof(b)));
ASSERT_EQ(0, memcmp(&c, c_scalar.GetBytes(), sizeof(c)));
ASSERT_EQ(0, memcmp(&d, d_scalar.GetBytes(), sizeof(d)));
ASSERT_EQ(0, e_error.Fail());
ASSERT_EQ(0, memcmp(e, e_scalar.GetBytes(), sizeof(e)));
ASSERT_EQ(0, f_error.Fail());
ASSERT_EQ(0, memcmp(f, f_scalar.GetBytes(), sizeof(f)));
}
TEST(ScalarTest, CastOperations) {
long long a = 0xf1f2f3f4f5f6f7f8LL;
Scalar a_scalar(a);
ASSERT_EQ((signed char)a, a_scalar.SChar());
ASSERT_EQ((unsigned char)a, a_scalar.UChar());
ASSERT_EQ((signed short)a, a_scalar.SShort());
ASSERT_EQ((unsigned short)a, a_scalar.UShort());
ASSERT_EQ((signed int)a, a_scalar.SInt());
ASSERT_EQ((unsigned int)a, a_scalar.UInt());
ASSERT_EQ((signed long)a, a_scalar.SLong());
ASSERT_EQ((unsigned long)a, a_scalar.ULong());
ASSERT_EQ((signed long long)a, a_scalar.SLongLong());
ASSERT_EQ((unsigned long long)a, a_scalar.ULongLong());
int a2 = 23;
Scalar a2_scalar(a2);
ASSERT_EQ((float)a2, a2_scalar.Float());
ASSERT_EQ((double)a2, a2_scalar.Double());
ASSERT_EQ((long double)a2, a2_scalar.LongDouble());
}
TEST(ScalarTest, ExtractBitfield) {
uint32_t len = sizeof(long long) * 8;
long long a1 = 0xf1f2f3f4f5f6f7f8LL;
long long b1 = 0xff1f2f3f4f5f6f7fLL;
Scalar s_scalar(a1);
ASSERT_TRUE(s_scalar.ExtractBitfield(0, 0));
ASSERT_EQ(0, memcmp(&a1, s_scalar.GetBytes(), sizeof(a1)));
ASSERT_TRUE(s_scalar.ExtractBitfield(len, 0));
ASSERT_EQ(0, memcmp(&a1, s_scalar.GetBytes(), sizeof(a1)));
ASSERT_TRUE(s_scalar.ExtractBitfield(len - 4, 4));
ASSERT_EQ(0, memcmp(&b1, s_scalar.GetBytes(), sizeof(b1)));
unsigned long long a2 = 0xf1f2f3f4f5f6f7f8ULL;
unsigned long long b2 = 0x0f1f2f3f4f5f6f7fULL;
Scalar u_scalar(a2);
ASSERT_TRUE(u_scalar.ExtractBitfield(0, 0));
ASSERT_EQ(0, memcmp(&a2, u_scalar.GetBytes(), sizeof(a2)));
ASSERT_TRUE(u_scalar.ExtractBitfield(len, 0));
ASSERT_EQ(0, memcmp(&a2, u_scalar.GetBytes(), sizeof(a2)));
ASSERT_TRUE(u_scalar.ExtractBitfield(len - 4, 4));
ASSERT_EQ(0, memcmp(&b2, u_scalar.GetBytes(), sizeof(b2)));
}
template <typename T> static std::string ScalarGetValue(T value) {
StreamString stream;
Scalar(value).GetValue(&stream, false);
return stream.GetString();
}
TEST(ScalarTest, GetValue) {
EXPECT_EQ("12345", ScalarGetValue<signed short>(12345));
EXPECT_EQ("-12345", ScalarGetValue<signed short>(-12345));
EXPECT_EQ("12345", ScalarGetValue<unsigned short>(12345));
EXPECT_EQ(std::to_string(std::numeric_limits<unsigned short>::max()),
ScalarGetValue(std::numeric_limits<unsigned short>::max()));
EXPECT_EQ("12345", ScalarGetValue<signed int>(12345));
EXPECT_EQ("-12345", ScalarGetValue<signed int>(-12345));
EXPECT_EQ("12345", ScalarGetValue<unsigned int>(12345));
EXPECT_EQ(std::to_string(std::numeric_limits<unsigned int>::max()),
ScalarGetValue(std::numeric_limits<unsigned int>::max()));
EXPECT_EQ("12345678", ScalarGetValue<signed long>(12345678L));
EXPECT_EQ("-12345678", ScalarGetValue<signed long>(-12345678L));
EXPECT_EQ("12345678", ScalarGetValue<unsigned long>(12345678UL));
EXPECT_EQ(std::to_string(std::numeric_limits<unsigned long>::max()),
ScalarGetValue(std::numeric_limits<unsigned long>::max()));
EXPECT_EQ("1234567890123", ScalarGetValue<signed long long>(1234567890123LL));
EXPECT_EQ("-1234567890123",
ScalarGetValue<signed long long>(-1234567890123LL));
EXPECT_EQ("1234567890123",
ScalarGetValue<unsigned long long>(1234567890123ULL));
EXPECT_EQ(std::to_string(std::numeric_limits<unsigned long long>::max()),
ScalarGetValue(std::numeric_limits<unsigned long long>::max()));
}
TEST(ScalarTest, Division) {
Scalar lhs(5.0);
Scalar rhs(2.0);
Scalar r = lhs / rhs;
EXPECT_TRUE(r.IsValid());
EXPECT_EQ(r, Scalar(2.5));
}
TEST(ScalarTest, Promotion) {
static Scalar::Type int_types[] = {
Scalar::e_sint, Scalar::e_uint, Scalar::e_slong,
Scalar::e_ulong, Scalar::e_slonglong, Scalar::e_ulonglong,
Scalar::e_sint128, Scalar::e_uint128, Scalar::e_sint256,
Scalar::e_uint256,
Scalar::e_void // sentinel
};
static Scalar::Type float_types[] = {
Scalar::e_float, Scalar::e_double, Scalar::e_long_double,
Scalar::e_void // sentinel
};
for (int i = 0; int_types[i] != Scalar::e_void; ++i) {
for (int j = 0; float_types[j] != Scalar::e_void; ++j) {
Scalar lhs(2);
EXPECT_TRUE(lhs.Promote(int_types[i])) << "int promotion #" << i;
Scalar rhs(0.5f);
EXPECT_TRUE(rhs.Promote(float_types[j])) << "float promotion #" << j;
Scalar x(2.5f);
EXPECT_TRUE(x.Promote(float_types[j]));
EXPECT_EQ(lhs + rhs, x);
}
}
for (int i = 0; float_types[i] != Scalar::e_void; ++i) {
for (int j = 0; float_types[j] != Scalar::e_void; ++j) {
Scalar lhs(2);
EXPECT_TRUE(lhs.Promote(float_types[i])) << "float promotion #" << i;
Scalar rhs(0.5f);
EXPECT_TRUE(rhs.Promote(float_types[j])) << "float promotion #" << j;
Scalar x(2.5f);
EXPECT_TRUE(x.Promote(float_types[j]));
EXPECT_EQ(lhs + rhs, x);
}
}
}
TEST(ScalarTest, SetValueFromCString) {
Scalar a;
EXPECT_THAT_ERROR(
a.SetValueFromCString("1234567890123", lldb::eEncodingUint, 8).ToError(),
Succeeded());
EXPECT_EQ(1234567890123ull, a);
EXPECT_THAT_ERROR(
a.SetValueFromCString("-1234567890123", lldb::eEncodingSint, 8).ToError(),
Succeeded());
EXPECT_EQ(-1234567890123ll, a);
EXPECT_THAT_ERROR(
a.SetValueFromCString("asdf", lldb::eEncodingSint, 8).ToError(),
Failed());
EXPECT_THAT_ERROR(
a.SetValueFromCString("asdf", lldb::eEncodingUint, 8).ToError(),
Failed());
EXPECT_THAT_ERROR(
a.SetValueFromCString("1234567890123", lldb::eEncodingUint, 4).ToError(),
Failed());
EXPECT_THAT_ERROR(a.SetValueFromCString("123456789012345678901234567890",
lldb::eEncodingUint, 8)
.ToError(),
Failed());
EXPECT_THAT_ERROR(
a.SetValueFromCString("-123", lldb::eEncodingUint, 8).ToError(),
Failed());
}
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