[all-commits] [llvm/llvm-project] dbba2f: [JITLink] Fix Wtype-limits gcc warning (NFC)

[nullptr-cpp via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dbba2f7c41a830697ce8c623d56f4239700abb9f
      https://github.com/llvm/llvm-project/commit/dbba2f7c41a830697ce8c623d56f4239700abb9f
  Author: Yang Fan <nullptr.cpp at gmail.com>
  Date:   2021-03-05 (Fri, 05 Mar 2021)

  Changed paths:
    M llvm/lib/ExecutionEngine/JITLink/JITLinkMemoryManager.cpp

  Log Message:
  -----------
  [JITLink] Fix Wtype-limits gcc warning (NFC)

GCC warning:
```
In file included from /usr/include/c++/9/cassert:44,
from /home/vsts/work/1/llvm-project/llvm/include/llvm/ADT/BitVector.h:21,
from /home/vsts/work/1/llvm-project/llvm/include/llvm/Support/Program.h:17,
from /home/vsts/work/1/llvm-project/llvm/include/llvm/Support/Process.h:32,
from /home/vsts/work/1/llvm-project/llvm/lib/ExecutionEngine/JITLink/JITLinkMemoryManager.cpp:11:
/home/vsts/work/1/llvm-project/llvm/lib/ExecutionEngine/JITLink/JITLinkMemoryManager.cpp: In member function ‘virtual llvm::Expected<std::unique_ptr<llvm::jitlink::JITLinkMemoryManager::Allocation> > llvm::jitlink::InProcessMemoryManager::allocate(const llvm::jitlink::JITLinkDylib*, const SegmentsRequestMap&)’:
/home/vsts/work/1/llvm-project/llvm/lib/ExecutionEngine/JITLink/JITLinkMemoryManager.cpp:129:40: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
129 |   assert(SlabRemaining.allocatedSize() >= 0 && "Mapping exceeds allocation");
    |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
```

The return type of `allocatedSize()` is `size_t`, thus the expression
`SlabRemaining.allocatedSize() >= 0` always evaluate to `true`.