I’ve just released a small one C++ file tool called spirv-stats. It will take one or more SPIR-V input files, and calculate the composition of the SPIR-V shader modules like so: It firstly outputs the total number of hits in the SPIR-V shader module(s) - this is the total number of opcodes found within the module(s). Then it outputs the total byte size of the module(s), followed by a sorted breakdown of the module(s), with the most hit opcodes coming first.

In my previous post cleaning up the parser, I had rationalised the parser for my custom language I’m calling Neil - Not Exactly an Intermediate Language. The next step in making my language more useful and expression is to add the ability to arbitrarily create variables within a function, store an initial value to the variable, and then be able to update the variable. Previously, our language could handle: Whereas now we want it to be able to handle:

I was recently made aware of the awesome JSON parser/writer benchmark suite nativejson-benchmark (thanks to the awesome @chadaustin). The suite takes over 40 different JSON libraries and compares how fast the can parse/write JSON, but also has a set of test cases that cover some really obtuse corner cases that a lot of parsers missed. One of the parsers that failed some of these tests was my own one json.h, so in pull request #42 I’ve merged in the fixes for the failures uncovered by the test suite.

In my previous post Hooking up MPC & LLVM I had started hooking up MPC to LLVM, to start developing a custom language I’m calling Neil - Not Exactly an Intermediate Language. Since then, I’ve tried to rationalise the various hacks I had to do on the original version just to get something working, and actually try and have a clean codebase for generating LLVM from our MPC grammar. Check out the GitHub repository here if you want to follow the progress.

I’ve been tinkering around with mpc and llvm recently - just to satisfy a few simple questions: How easy is it to use mpc? How easy is the LLVM c api to use? How easy is it to connect a parser generator to an LLVM Module? So given the above aims, I’ve embarked on creating my own stupid little language, that I’m calling ‘neil‘ - Not Exactly an Intermediate Language. It is utterly by chance that the name ‘neil‘ happens to be my own name, if you’ve believe that gratuitous lie!