понедельник, 26 октября 2026 г.

machineIR passes & mlir dialects from tileiras & cute dsl

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Previous parts: 1 , 2 & 3 Let's continue to dissect compilers from nvidia. This time, I decided to examine compilers that are guara...
среда, 21 октября 2026 г.

new ptx instructions from cuda sdk 13.4

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File with extracted instructions, attributes masks and operands - 1669 items (vs 1420 in version from 13.0). Being lazy person I also wrot...
понедельник, 19 октября 2026 г.

inefficient uniform registers allocation in ptxas

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While poking around RT kernels ( extracted from libcuda.so) I stumbled upon very remarkable sample - sm159.elf. First let's check what...
четверг, 15 октября 2026 г.

comparison of nvcc vs clang nvptx backend, part 3

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Parts 1 & 2 Little disclaimer : I am not llvm expert and never created my own backend - in best case I can write simple optimization pa...
понедельник, 12 октября 2026 г.

comparison of nvcc vs clang nvptx backend, part 2

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Part 1 First of all, I have to say that digging through LLVM source code is simply disgusting - its code tree is monstrously huge and parts...
среда, 7 октября 2026 г.

comparison of code from nvcc vs clang

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Lets continue our methodical dissection of PTX/SASS code generated by different compilers Last week I implemented on CUDA count-sketch alg...
пятница, 2 октября 2026 г.

ptx generated by LLVM NVPTX

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I decided to complete saga with ptx instructions which can be generated with popular compilers and check clang with NVPTX target Gathering ...