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by wiz21c 3344 days ago
> Really? You believe JIT will be on-par with a profile assisted, bruteforcing compiler, which can spend a week optimizing a single function?

I was in game development looong ago (C++ / assembler, lots of 3D software rendering). What kind of compiler is that ? Could you give some pointers ?
1 comments
pandaman 3343 days ago
All modern compilers do this (MSVC, clang, I believe gcc too). Search for "PGO" (Profile Guided Optimization). Also, not just for C++ - PS3 shader compiler did brute force instruction scheduling optimization (using shaderperf instead of profiler).
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wiz21c 3343 days ago
damn time to refresh my knowledge :-) That's what happens when you do CRUD too long :-)

Last time I optimized code the hard way was using VTune to channel the right operation in the right pipeline.

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