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Add check for 128-bit pointers

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Thanks to Andy Polyakov
This commit is contained in:
Jeffrey Walton 2023-11-06 14:58:17 -05:00
parent c0e15c066e
commit 3e3b8af96d
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GPG Key ID: B36AB348921B1838
1 changed files with 24 additions and 4 deletions
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28
validat3.cpp
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@ -256,23 +256,43 @@ bool TestSettings()
pass = false;
}
// Machine word size does not agree with pointer size on Morello. Also see
// https://developer.arm.com/documentation/den0133/0100/Morello-prototype-architecture/Pointers-and-capabilities
if (sizeof(size_t) == 16)
{
std::cout << "passed: Your machine has 128-bit words.\n";
}
else if (sizeof(size_t) == 8)
{
std::cout << "passed: Your machine has 64-bit words.\n";
}
else if (sizeof(size_t) == 4)
{
std::cout << "passed: Your machine has 32-bit words.\n";
}
else
{
std::cout << "FAILED: Your machine uses unknown word size.\n";
pass = false;
}
// Morello uses 129-bit pointers. Also see
// https://developer.arm.com/documentation/den0133/0100/Morello-prototype-architecture/Pointers-and-capabilities
if (sizeof(void*) == 16)
{
std::cout << "passed: Your machine is 128-bit.\n";
std::cout << "passed: Your machine has 128-bit pointers.\n";
}
else if (sizeof(void*) == 8)
{
std::cout << "passed: Your machine is 64-bit.\n";
std::cout << "passed: Your machine has 64-bit pointers.\n";
}
else if (sizeof(void*) == 4)
{
std::cout << "passed: Your machine is 32-bit.\n";
std::cout << "passed: Your machine has 32-bit pointers.\n";
}
else
{
std::cout << "FAILED: Your machine is neither 32-bit nor 64-bit.\n";
std::cout << "FAILED: Your machine uses unknown pointer size.\n";
pass = false;
}