Krister Walfridsson’s old blog

Inlining is important for C++ performance, but the compiler must be careful not to increase the code size too much. GCC’s inlining process ...

It is easy to use quick-bench to benchmark small C++ functions, but it is hard to ensure they are measuring what is intended. Take this b...

Some useful address sanitizer checks are disabled by default because they are relatively expensive (or, as for the std::vector checking, n...

One of the examples in Matt Godbolt’s C++Now 2018 talk “ What Else Has My Compiler Done For Me Lately? ” is the function void maxArray ( ...

I saw on twitter that it takes more than twice as much time compiling the Ogre graphics engine using GCC than when using Clang. My experi...

The GCC and LLVM sanitizers are great for finding problems in C++ code, but they do not detect problems with incorrect STL usage. For examp...

I listened to a recent CppCast episode where Balázs Török talked about game development and mentioned that C++ abstractions make the code ...

This is part six of a series “ Writing a GCC back end ”. Cost model – TARGET_RTX_COSTS The compiler often has different options for ho...