Krister Walfridsson’s old blog

GCC 1.27 was released in 1988 and is the first version of GCC supporting the x86 CPU. I thought it would be fun to make it work on my deskt...

I have done some Commodore 64 programming over the holidays. The C64 is old , but I think there are things that can be learned from dealing...

The performance of programs depend surprisingly much on things that “should not” matter (such as the order files are passed to the linker )...

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...