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Cliff Click

@cliffclick.bsky.social

67 followers 1 following 45 posts

Compiler researcher, mountain hiker, public speaking, long road trips, teaching, 20 patents, founder, father of 4.

Posts Media Videos Starter Packs

Cliff Click @cliffclick.bsky.social · 21d

youtu.be/q4mRNu6_lpc
C++ debugging, -Og, safepoints, adr sanitization. kefir (from scratch C compile), SCCP in Simple, graph DSL. Strict aliasing, implicit conversions. Pointer comparison. GPU Kernels DSLs (Triton, Gluon, TLX), Object layout, NUMA. Distributed random forest

Coffee Compiler Club, 2025_09_19

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · 28d

youtu.be/5YIhnjThoK4
Burning Man, boats diving between dust devils. LSP, C backend, debug info, codegen , zydis, ASM. Ryan/quxlang update - literal types, bitwise operators, keywords, functions, containers. LLVM LogicalResult. GCC and LLVM funding, Triton, Cuda, ML , Mojo

Coffee Compiler Club, 2025_09_12

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Sep 5

youtu.be/qhfhluIory0
C++/11,20,26; partial -g code; Java vs C++ speed with debugging. x86/arm vs java mem model. x86 intrinsics in Java. LSPs. C++ vs Java containers. Compile-time alloc size. UI frameworks. Teaching programming via games. C++ default copy/move opers

Coffee Compiler Club, 2025_09_05

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Aug 16

youtu.be/wTHBUyLrBkg
C++ copy/move constructors;
oper overloading semantics;
primitives as defined in stdlib or built-in;
All About Register Allocation (SSA chordal graph property; graph-color vs linear scan)

Coffee Compiler Club, 2025_08_15

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Aug 2

youtu.be/88vUzySFzXg
Modular, async memcopy, hyperthreading, Mill, Belt. LSTM, H2O, std libs, bulk search, SoA/AoS layout, indexes. Conditional types, const, views. Strong/weak/static types, C/C++ aliasing. C++ slow build times, overlay linkers, GPU mem limits, lang vs lib, layers upon layers

Coffee Compiler Club, 2025_08_01

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Jul 26

youtu.be/0rkYmJLGiJ8
Trinary op parsing; && || XOR; Simon shrinking ptrs and obj headers; int size overflow; Class cardinality, erasure, vtables, gc bits, opaque types, sentinels, Stack traces, debug info, safe points, Java virtual threads, priorities, fair scheduling, gc

Coffee Compiler Club, 2025_07_25

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Jul 18

youtu.be/Std-folefRs
List of Cliff talks. Blockchain vs law. 10 hours LLVM setup, lldb, VSCode, Bazel bugs, Autosave, AI. Facebook Php to Hack. Repl, eval, JIT-per-GPU, tiered compiles. Twitter war story. Register & inline keywords, Simple/SoN on MLIR, MOJO self host

Coffee Compiler Club, 2025_07_18

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Jul 11

youtu.be/kIIWXJF_zIs
Modular; LLVM , PyPy , Mojo; JIT hints keywords, specializations, comp speed; vs Python3; vs gc, linear types. JVM chips. FFI. Self-hosting. Cuda, AI chips, PTX, MLIR. Targeting different levels; FFI vs ILP vs cpu vs gpu, fusion; FP precision. Keyboards

Coffee Compiler Club, 2025_06_27

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Jun 20

youtu.be/F6pC84rT2OE
Simple update, Logging (for debugging, perf, h2o debug, rust serde, microservices dep graph discovery). Modules in Simple, classfile approach, imports, headers Dependency management: fetch vs Build, Imports, resolution, lock files

Coffee Compiler Club, 2025_06_20

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Jun 20

The rare Coffee Compiler Club announcement: CCC is on this morning, 20/June/2025, 10am PST. CCC is open to all compiler (and language design and implementation) lovers. Ask via private msg or email [email protected] for invite.

Cliff Click @cliffclick.bsky.social · Jun 14

youtu.be/2MIa43DsvfM
Simple ch23 methods; equality, copy-on-write, Hylo[1], Mojo[3], PTX[4], Spegion[5]. IR in .o files, keeping type info, separate compilation, symbol tables, constructors, AST, IRGen, Formal types, parsing, sem analysis, parse speed, Carbon[7], fuzzers

Coffee Compiler Club, 2025_06_13

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Jun 8

Looking for reviews on the next Simple chapter, esp the README:
github.com/SeaOfNodes/S...
Notice this is *branch* ch23 not main's README.
Also, any review any chapter is fair game in main branch. Email me cliffc at acm.org.
Thanks!

Simple/chapter23 at ch23 · SeaOfNodes/Simple

A Simple showcase for the Sea-of-Nodes compiler IR - SeaOfNodes/Simple

Cliff Click @cliffclick.bsky.social · Jun 6

youtu.be/bm5KfbGa_H4
Quxlang, number literal highlighting & precedence,
Simple update, Generics in Quxlang, composition over inheritance, Impl vs interface inheritance. All About Equals, ==, eq, &a==&b, user-defined

Coffee Compiler Club, 2025_06_06

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · May 30

youtu.be/DAOVqLoRSuk
Simple cyclic types; also in Inko & C2 cyclic types; eq, cyclic_eq, printing cycles. Inko update - http stack, http1 .1 , io interface. Haskell’s unboxed types. XTC class loading java backend, static vars in XTC, H2O.

Coffee Compiler Club, 2025_05_30

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · May 24

youtu.be/nGAVj1qn7AQ
Cyclic & self types; hashing cycles. De bruijn indexes, java reflection field order, interning, serialization, compression. Dfa min. Finding new opts, escape analysis, opt patterns, profilers, wait states, perf analysis, bandwidth limits - latency, gc

Coffee Compiler Club, 2025_05_23

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · May 16

youtu.be/LKJTuMMiEbE
Abstract interp & partial eval, typing. Tracing JITs, interps, Animorphic and Java early years. Forth (do one!). Range checks & RCE, control, casting. Simple methods, CProp, cyclic types, this, forward refs, REPL, symbol resolution, self type. Job hunt.

Coffee Compiler Club, 2025_05_16

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · May 10

youtu.be/Sx6NM-2ADlo
Simple update, code showcase, FFI, bindings. RiscV call & RPC, stackless exec, trade offs. Outlining. XTC runtime, duck types, interface lookup. JS dyn lookup, mono vs megamorphic calls. Modules, JS iterators, generators. Analytic GC solutions

Coffee Compiler Club, 2025_05_09

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · May 2

youtu.be/0TCoCeujKsg
Simple update, strings, imports, nested types, const final fields as libc FFI “extern”. (im)mut ptrs & arrays, immut public of mut private, refs vs value, german strings. Remove Rust 'mut'. c++ constexpr. ULP math. Allan presents; exec strats & opts

Coffee Compiler Club, 2025_02_05

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Apr 25

youtu.be/LlaGHhsF-Zs
Simple portable IR, Reg Alloc, Spills, machine IR, ABI. AST vs graph. Chapter 22: FFI, by value or ref, object inlining, unify struct and arrays, strings. Hashcodes vs moving GC. Design choices for structures, names. Arenas, headerless objects.

Coffee Compiler Club, 2025_25_04

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Apr 18

youtu.be/QkzNGlt6ZtY
Simple ch21 bugs, RiscV, ARM emul, ELF, ABI, BB layout, swapping CMP operands vs negate. Ch22 - String, GC vs free, hello world compiler, method calls. New HLL nodes&opts, Mojo, transact mem, finding containers. Queries. More data struct opts, RPO

Coffee Compiler Club, 2025_18_04

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Apr 11

youtu.be/fNdgEienyEw
Simple Ch21, bugs, strings, RISC5, regalloc, ms_abi vs sys5_abi, roadmap. Escape analysis for .NET, large stacks, async, conts, Midori, GC stress, liveness. Checkable GC ptrs, typed asm. Moving GC and hashing. Ptrs vs refs. Live debugging, ASCII dumps

Coffee Compiler Club, 2025_11_04

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Apr 9

Another (easy) round in the Simple Reply:
github.com/SeaOfNodes/S...

Cliff Click @cliffclick.bsky.social · Apr 7

Another round in the Simple Reply:

github.com/SeaOfNodes/S...

Cliff Click @cliffclick.bsky.social · Apr 4

youtu.be/Zo801M9E--M
Asm & Forth. Sea of Nodes vs V8, equiv class aliasing, V8 algo vs idiomatic, Node cost matters. Type based alias vs flow based. Embedded, cost model. Disasm, fuzzing. Simple update; RA commit rate, linking with libc alts, DWARF, more compiler design.

Coffee Compiler Club, 2025_04_04

YouTube video by Cliff Click

Cliff Click @cliffclick.bsky.social · Apr 4

And of course Coffee Compiler Club is on tomorrow morning, 4/Apr/2025, 10am PST. CCC is open to all compiler (and language design and implementation) lovers. Ask via private msg or email [email protected] for invite.