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kristerw.github.io | ||
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coredumped.dev
In this post, we are going to take a deep dive into pointer tagging, where metadata is encoded into a word-sized pointer. Doing so allows us to keep a compact representation that can be passed around in machine registers. This is very common in implementing dynamic programming languages, but can really be used anywhere that additional runtime information is needed about a pointer. We will look at a handful of different ways these pointers can be encoded and see how the compiler can optimize them for diff... |
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nullprogram.com
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kristerw.blogspot.com
Signed integers are not allowed to overflow in C and C++, and this helps compilers generate better code. I was interested in how GCC is tak... |
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denniskubes.com
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