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e0590a0b56fc16eb7f8a3d3a2aba1a856f6103f0
RedBear-OS/local/recipes/dev/libclc/source/lldb/unittests/Utility/ScalarTest.cpp
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class) 
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

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//===-- ScalarTest.cpp ----------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#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 "lldb/lldb-enumerations.h"
#include "llvm/ADT/APSInt.h"
#include "llvm/Testing/Support/Error.h"
#include <algorithm>
#include <cmath>
using namespace lldb_private;
using llvm::APFloat;
using llvm::APInt;
using llvm::Failed;
using llvm::Succeeded;
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);
}
template <typename T> static void CheckConversion(T val) {
SCOPED_TRACE("val = " + std::to_string(val));
EXPECT_EQ((signed char)val, Scalar(val).SChar());
EXPECT_EQ((unsigned char)val, Scalar(val).UChar());
EXPECT_EQ((short)val, Scalar(val).SShort());
EXPECT_EQ((unsigned short)val, Scalar(val).UShort());
EXPECT_EQ((int)val, Scalar(val).SInt());
EXPECT_EQ((unsigned)val, Scalar(val).UInt());
EXPECT_EQ((long)val, Scalar(val).SLong());
EXPECT_EQ((unsigned long)val, Scalar(val).ULong());
EXPECT_EQ((long long)val, Scalar(val).SLongLong());
EXPECT_EQ((unsigned long long)val, Scalar(val).ULongLong());
EXPECT_NEAR((float)val, Scalar(val).Float(), std::abs(val / 1e6));
EXPECT_NEAR((double)val, Scalar(val).Double(), std::abs(val / 1e12));
EXPECT_NEAR((long double)val, Scalar(val).LongDouble(), std::abs(val / 1e12));
}
TEST(ScalarTest, Getters) {
CheckConversion<int>(0x87654321);
CheckConversion<unsigned int>(0x87654321u);
CheckConversion<long>(0x87654321l);
CheckConversion<unsigned long>(0x87654321ul);
CheckConversion<long long>(0x8765432112345678ll);
CheckConversion<unsigned long long>(0x8765432112345678ull);
CheckConversion<float>(42.25f);
CheckConversion<double>(42.25);
CheckConversion<long double>(42.25L);
EXPECT_EQ(APInt(128, 1) << 70, Scalar(std::pow(2.0f, 70.0f)).SInt128(APInt()));
EXPECT_EQ(APInt(128, -1, true) << 70,
Scalar(-std::pow(2.0f, 70.0f)).SInt128(APInt()));
EXPECT_EQ(APInt(128, 1) << 70,
Scalar(std::pow(2.0f, 70.0f)).UInt128(APInt()));
EXPECT_EQ(APInt(128, 0), Scalar(-std::pow(2.0f, 70.0f)).UInt128(APInt()));
EXPECT_EQ(APInt(128, 1) << 70, Scalar(std::pow(2.0, 70.0)).SInt128(APInt()));
EXPECT_EQ(APInt(128, -1, true) << 70,
Scalar(-std::pow(2.0, 70.0)).SInt128(APInt()));
EXPECT_EQ(APInt(128, 1) << 70, Scalar(std::pow(2.0, 70.0)).UInt128(APInt()));
EXPECT_EQ(APInt(128, 0), Scalar(-std::pow(2.0, 70.0)).UInt128(APInt()));
}
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) {
uint8_t Storage[256];
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 *));
DataExtractor f_data(f, sizeof(f), endian::InlHostByteOrder(),
sizeof(void *));
a_scalar.GetBytes(Storage);
ASSERT_EQ(0, memcmp(&a, Storage, sizeof(a)));
b_scalar.GetBytes(Storage);
ASSERT_EQ(0, memcmp(&b, Storage, sizeof(b)));
c_scalar.GetBytes(Storage);
ASSERT_EQ(0, memcmp(&c, Storage, sizeof(c)));
d_scalar.GetBytes(Storage);
ASSERT_EQ(0, memcmp(&d, Storage, sizeof(d)));
ASSERT_THAT_ERROR(
e_scalar.SetValueFromData(e_data, lldb::eEncodingUint, sizeof(e))
.ToError(),
llvm::Succeeded());
e_scalar.GetBytes(Storage);
ASSERT_EQ(0, memcmp(e, Storage, sizeof(e)));
ASSERT_THAT_ERROR(
f_scalar.SetValueFromData(f_data, lldb::eEncodingUint, sizeof(f))
.ToError(),
llvm::Succeeded());
f_scalar.GetBytes(Storage);
ASSERT_EQ(0, memcmp(f, Storage, sizeof(f)));
}
TEST(ScalarTest, GetData) {
auto get_data = [](llvm::APSInt v) {
DataExtractor data;
Scalar(v).GetData(data);
return data.GetData().vec();
};
auto vec = [](std::initializer_list<uint8_t> l) {
std::vector<uint8_t> v(l.begin(), l.end());
if (endian::InlHostByteOrder() == lldb::eByteOrderLittle)
std::reverse(v.begin(), v.end());
return v;
};
EXPECT_THAT(
get_data(llvm::APSInt::getMaxValue(/*numBits=*/1, /*Unsigned=*/true)),
vec({0x01}));
EXPECT_THAT(
get_data(llvm::APSInt::getMaxValue(/*numBits=*/8, /*Unsigned=*/true)),
vec({0xff}));
EXPECT_THAT(
get_data(llvm::APSInt::getMaxValue(/*numBits=*/9, /*Unsigned=*/true)),
vec({0x01, 0xff}));
}
TEST(ScalarTest, SetValueFromData) {
uint8_t a[] = {1, 2, 3, 4};
Scalar s;
ASSERT_THAT_ERROR(
s.SetValueFromData(
DataExtractor(a, sizeof(a), lldb::eByteOrderLittle, sizeof(void *)),
lldb::eEncodingSint, sizeof(a))
.ToError(),
llvm::Succeeded());
EXPECT_EQ(0x04030201, s);
ASSERT_THAT_ERROR(
s.SetValueFromData(
DataExtractor(a, sizeof(a), lldb::eByteOrderBig, sizeof(void *)),
lldb::eEncodingSint, sizeof(a))
.ToError(),
llvm::Succeeded());
EXPECT_EQ(0x01020304, s);
}
TEST(ScalarTest, CastOperations) {
long long a = 0xf1f2f3f4f5f6f7f8LL;
Scalar a_scalar(a);
EXPECT_EQ((signed char)a, a_scalar.SChar());
EXPECT_EQ((unsigned char)a, a_scalar.UChar());
EXPECT_EQ((signed short)a, a_scalar.SShort());
EXPECT_EQ((unsigned short)a, a_scalar.UShort());
EXPECT_EQ((signed int)a, a_scalar.SInt());
EXPECT_EQ((unsigned int)a, a_scalar.UInt());
EXPECT_EQ((signed long)a, a_scalar.SLong());
EXPECT_EQ((unsigned long)a, a_scalar.ULong());
EXPECT_EQ((signed long long)a, a_scalar.SLongLong());
EXPECT_EQ((unsigned long long)a, a_scalar.ULongLong());
int a2 = 23;
Scalar a2_scalar(a2);
EXPECT_EQ((float)a2, a2_scalar.Float());
EXPECT_EQ((double)a2, a2_scalar.Double());
EXPECT_EQ((long double)a2, a2_scalar.LongDouble());
EXPECT_EQ(std::numeric_limits<unsigned int>::min(), Scalar(-1.0f).UInt());
EXPECT_EQ(std::numeric_limits<unsigned int>::max(), Scalar(1e11f).UInt());
EXPECT_EQ(std::numeric_limits<unsigned long long>::min(),
Scalar(-1.0).ULongLong());
EXPECT_EQ(std::numeric_limits<unsigned long long>::max(),
Scalar(1e22).ULongLong());
EXPECT_EQ(std::numeric_limits<int>::min(), Scalar(-1e11f).SInt());
EXPECT_EQ(std::numeric_limits<int>::max(), Scalar(1e11f).SInt());
EXPECT_EQ(std::numeric_limits<long long>::min(), Scalar(-1e22).SLongLong());
EXPECT_EQ(std::numeric_limits<long long>::max(), Scalar(1e22).SLongLong());
}
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));
EXPECT_EQ(s_scalar, a1);
ASSERT_TRUE(s_scalar.ExtractBitfield(len, 0));
EXPECT_EQ(s_scalar, a1);
ASSERT_TRUE(s_scalar.ExtractBitfield(len - 4, 4));
EXPECT_EQ(s_scalar, b1);
unsigned long long a2 = 0xf1f2f3f4f5f6f7f8ULL;
unsigned long long b2 = 0x0f1f2f3f4f5f6f7fULL;
Scalar u_scalar(a2);
ASSERT_TRUE(u_scalar.ExtractBitfield(0, 0));
EXPECT_EQ(u_scalar, a2);
ASSERT_TRUE(u_scalar.ExtractBitfield(len, 0));
EXPECT_EQ(u_scalar, a2);
ASSERT_TRUE(u_scalar.ExtractBitfield(len - 4, 4));
EXPECT_EQ(u_scalar, b2);
}
template <typename T> static std::string ScalarGetValue(T value) {
StreamString stream;
Scalar(value).GetValue(stream, false);
return std::string(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, LongLongAssigmentOperator) {
Scalar ull;
ull = std::numeric_limits<unsigned long long>::max();
EXPECT_EQ(std::numeric_limits<unsigned long long>::max(), ull.ULongLong());
Scalar sll;
sll = std::numeric_limits<signed long long>::max();
EXPECT_EQ(std::numeric_limits<signed long long>::max(), sll.SLongLong());
}
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) {
Scalar a(47);
EXPECT_TRUE(a.IntegralPromote(64, true));
EXPECT_TRUE(a.IsSigned());
EXPECT_EQ(APInt(64, 47), a.UInt128(APInt()));
EXPECT_FALSE(a.IntegralPromote(32, true));
EXPECT_FALSE(a.IntegralPromote(32, false));
EXPECT_TRUE(a.IsSigned());
EXPECT_TRUE(a.IntegralPromote(64, false));
EXPECT_FALSE(a.IsSigned());
EXPECT_EQ(APInt(64, 47), a.UInt128(APInt()));
EXPECT_FALSE(a.IntegralPromote(64, true));
EXPECT_TRUE(a.FloatPromote(APFloat::IEEEdouble()));
EXPECT_EQ(Scalar::e_float, a.GetType());
EXPECT_EQ(47.0, a.Double());
EXPECT_FALSE(a.FloatPromote(APFloat::IEEEsingle()));
EXPECT_TRUE(a.FloatPromote(APFloat::x87DoubleExtended()));
EXPECT_EQ(47.0L, a.LongDouble());
}
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());
EXPECT_THAT_ERROR(
a.SetValueFromCString("-2147483648", lldb::eEncodingSint, 4).ToError(),
Succeeded());
EXPECT_EQ(-2147483648, a);
EXPECT_THAT_ERROR(
a.SetValueFromCString("-2147483649", lldb::eEncodingSint, 4).ToError(),
Failed());
EXPECT_THAT_ERROR(
a.SetValueFromCString("47.25", lldb::eEncodingIEEE754, 4).ToError(),
Succeeded());
EXPECT_EQ(47.25f, a);
EXPECT_THAT_ERROR(
a.SetValueFromCString("asdf", lldb::eEncodingIEEE754, 4).ToError(),
Failed());
}
TEST(ScalarTest, APIntConstructor) {
for (auto &width : {8, 16, 32}) {
Scalar A(APInt(width, 24));
EXPECT_TRUE(A.IsSigned());
EXPECT_EQ(A.GetType(), Scalar::e_int);
EXPECT_EQ(APInt(width, 24), A.UInt128(APInt()));
}
}
TEST(ScalarTest, Scalar_512) {
Scalar Z(APInt(512, 0));
ASSERT_TRUE(Z.IsZero());
Z.MakeUnsigned();
ASSERT_TRUE(Z.IsZero());
Scalar S(APInt(512, 2000));
ASSERT_STREQ(S.GetTypeAsCString(), "int");
ASSERT_TRUE(S.MakeUnsigned());
EXPECT_EQ(S.GetType(), Scalar::e_int);
EXPECT_FALSE(S.IsSigned());
ASSERT_STREQ(S.GetTypeAsCString(), "int");
EXPECT_EQ(S.GetByteSize(), 64U);
ASSERT_TRUE(S.MakeSigned());
EXPECT_EQ(S.GetType(), Scalar::e_int);
EXPECT_TRUE(S.IsSigned());
EXPECT_EQ(S.GetByteSize(), 64U);
}
TEST(ScalarTest, TruncOrExtendTo) {
Scalar S(0xffff);
S.TruncOrExtendTo(12, true);
EXPECT_EQ(S.UInt128(APInt()), APInt(12, 0xfffu));
S.TruncOrExtendTo(20, true);
EXPECT_EQ(S.UInt128(APInt()), APInt(20, 0xfffffu));
S.TruncOrExtendTo(24, false);
EXPECT_EQ(S.UInt128(APInt()), APInt(24, 0x0fffffu));
S.TruncOrExtendTo(16, false);
EXPECT_EQ(S.UInt128(APInt()), APInt(16, 0xffffu));
}
TEST(ScalarTest, APFloatConstructor) {
llvm::APFloat my_single(llvm::APFloatBase::IEEEsingle(), "3.14159");
llvm::APFloat my_double(llvm::APFloatBase::IEEEdouble(), "3.14159");
Scalar S(my_single);
Scalar D(my_double);
EXPECT_EQ(S.GetType(), Scalar::e_float);
EXPECT_EQ(D.GetType(), Scalar::e_float);
ASSERT_TRUE(S != D);
}
TEST(ScalarTest, CreateAPFloats) {
llvm::APFloat ap_float(llvm::APFloatBase::IEEEsingle(), "3.14159");
llvm::APFloat ap_nan = llvm::APFloat::getNaN(llvm::APFloat::IEEEsingle());
llvm::APSInt int1("12");
llvm::APSInt int2("-4");
Scalar I1(int1);
Scalar I2(int2);
Scalar F(ap_float);
llvm::APFloat out1_float = I1.CreateAPFloatFromAPSInt(lldb::eBasicTypeFloat);
llvm::APFloat out1_double =
I1.CreateAPFloatFromAPSInt(lldb::eBasicTypeDouble);
llvm::APFloat out1_longdouble =
I1.CreateAPFloatFromAPSInt(lldb::eBasicTypeLongDouble);
llvm::APFloat out1_nan =
I1.CreateAPFloatFromAPSInt(lldb::eBasicTypeFloatComplex);
EXPECT_TRUE(!out1_float.isNegative());
EXPECT_TRUE(!out1_double.isNegative());
EXPECT_TRUE(out1_double.bitwiseIsEqual(out1_longdouble));
EXPECT_FALSE(out1_double.bitwiseIsEqual(out1_float));
EXPECT_TRUE(out1_nan.bitwiseIsEqual(ap_nan));
llvm::APFloat out2_float = I2.CreateAPFloatFromAPSInt(lldb::eBasicTypeFloat);
llvm::APFloat out2_double =
I2.CreateAPFloatFromAPSInt(lldb::eBasicTypeDouble);
llvm::APFloat out2_longdouble =
I2.CreateAPFloatFromAPSInt(lldb::eBasicTypeLongDouble);
llvm::APFloat out2_nan =
I2.CreateAPFloatFromAPSInt(lldb::eBasicTypeFloatComplex);
EXPECT_TRUE(out2_float.isNegative());
EXPECT_TRUE(out2_double.isNegative());
EXPECT_TRUE(out2_double.bitwiseIsEqual(out2_longdouble));
EXPECT_FALSE(out2_double.bitwiseIsEqual(out2_float));
EXPECT_TRUE(out2_nan.bitwiseIsEqual(ap_nan));
llvm::APFloat out3_float = F.CreateAPFloatFromAPFloat(lldb::eBasicTypeFloat);
llvm::APFloat out3_double =
F.CreateAPFloatFromAPFloat(lldb::eBasicTypeDouble);
llvm::APFloat out3_longdouble =
F.CreateAPFloatFromAPFloat(lldb::eBasicTypeLongDouble);
llvm::APFloat out3_nan =
F.CreateAPFloatFromAPFloat(lldb::eBasicTypeFloatComplex);
EXPECT_TRUE(out3_double.bitwiseIsEqual(out3_longdouble));
EXPECT_FALSE(out3_double.bitwiseIsEqual(out3_float));
EXPECT_TRUE(out3_nan.bitwiseIsEqual(ap_nan));
}
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