## Remote Execution Caching Compiler (RECC) Engineering CppCon 2024 September 19, 2024 Shivam Bairoliya Software Engineer TechAtBloomberg.com © 2024 Bloomberg Finance L.P. All rights reserved. ## ## What is RECC? • Remote Execution Caching Compiler (RECC) Open source build tool that wraps compiler commands and optionally forwards them to a remote build execution service Encompasses the capabilities remote linking and caching ## • Designed to share caches across diverse toolchains Works with many compiler toolchains (GCC, Clang, Solaris CC) o Supports multiple operating systems (Linux, macOS, Solaris)

第三届中国 Rust 开发者大会 ## [Table_CompanyName] 6.17-6.18 @Shanghai ## Learning by Contributing to Rust Compiler Yukang github.com/chenyukang Engineer @ Cryptape ## My work experience • 2011 ~ 2014 EDA startup Diagnostic is an art • Rust cares about error messages • We are building a sufficiently empathetic compiler • It's a trade-off R Rust programming language Crustacean  x rustc +dev tests/ui/suggestions/issue-105761-suggest-self-for-closure

processing optimizations Vasiliki (Vasia) Kalavri vkalavri@bu.edu ## Topics covered in this lecture • Costs of streaming operator execution • state, parallelism, selectivity • Dataflow optimizations • plan plan translation alternatives • Runtime optimizations • load management, scheduling, state management • Optimization semantics, correctness, profitability ## Revisiting the basics ## dataflow graph optimization be applied during runtime or does it have to be applied statically? ## Catalog of Optimizations ## Operator re-ordering ![Image](/uploads/documents/d/f/8/d/df8d9a883a0b9bacb2db614d10387ee7/p15_1

The volatile qualifier is a vital tool for preventing compilers from performing certain harmful optimizations. ■ Unfortunately, many C++ programmers aren’t clear on exactly what protections volatile provides programmers apply the volatile qualifier incorrectly. ■ A misapplied volatile might: • prevent optimizations unnecessarily, or worse • fail to provide the expected protection, leading to subtle run-time in object declarations • What protections volatile does and doesn’t provide • Workarounds for compiler issues regarding volatile ## Why volatile is Necessary ■ Many device drivers contain code that

1296 98.9 Base.Cartesian 1300 98.10 Talking to the compiler (the :meta mechanism) 1305 98.11 SubArrays 1306 98.12 isbits Union Optimizations 1309 98.13 System Image Building 1310 98.14 Working applications, and we do not expect their use to diminish. Fortunately, modern language design and compiler techniques make it possible to mostly eliminate the performance trade-off and provide a single environment computing, with performance comparable to traditional statically-typed languages. Because Julia's compiler is different from the interpreters used for languages like Python or R, you may find that Julia's

Conan client inside a conanfile 384 17.26 Use a generic CI with Conan and Artifactory 385 17.27 Compiler sanitizers 387 18 Reference 391 18.1 Commands 391 18.2 conanfile.txt 471 18.3 conanfile binaries for mainstream compiler versions. Conan can manage any number of different binaries for different build configurations, including different architectures, compilers, compiler versions, runtimes, create and reuse any number of different binaries (for different configurations like architectures, compiler versions, etc.) for any number of different versions of a package, using exactly the same process

Base.Cartesian ..... 1528 102.10 Talking to the compiler (the :meta mechanism) ..... 1533 102.11 SubArrays ..... 1533 102.12 isbits Union Optimizations ..... 1537 102.13 System Image Building .... v1.9 Release Notes 1626 105.1 New language features 1626 105.2 Language changes 1626 105.3 Compiler/Runtime improvements 1626 105.4 Command-line option changes 1627 105.5 Multi-threading changes applications, and we do not expect their use to diminish. Fortunately, modern language design and compiler techniques make it possible to mostly eliminate the performance trade-off and provide a single environment

programs the best way they can behave and perform. - Clear – precisely communicate your intent to the compiler and other programmers. The language imposes a low overhead to reading code. Often the most efficient Integer Values Integer literals have no size limitation, and if any undefined behavior occurs, the compiler catches it. However, once an integer value is no longer known at compile–time, it must have a known Analysis Zig uses Type Based Alias Analysis (also known as Strict Aliasing) to perform some optimizations. This means that pointers of different types must not alias the same memory, with the exception

This document serves as the reference for the Pascal language as implemented by the Free Pascal compiler. It describes all Pascal constructs supported by Free Pascal, and lists all supported data types the Pascal language. The Free Pascal compiler emulates these compilers in the appropriate mode of the compiler: certain features are available only if the compiler is switched to the appropriate mode. around 1970. It has evolved significantly since that day, with a lot of contributions by the various compiler constructors (Notably: Borland). The basic elements have been kept throughout the years: • Easy

101.9 Base.Cartesian 1566 101.10 Talking to the compiler (the :meta mechanism) 1571 101.11 SubArrays 1572 101.12 isbits Union Optimizations 1576 101.13 System Image Building 1577 101.14 Package ..... 1675 104.1 New language features ..... 1675 104.2 Language changes ..... 1675 104.3 Compiler/Runtime improvements ..... 1676 104.4 Command-line option changes ..... 1676 104.5 Build system applications, and we do not expect their use to diminish. Fortunately, modern language design and compiler techniques make it possible to mostly eliminate the performance trade-off and provide a single environment