Sameera Deshpande-dalal - Principal Compiler Engineer at Quadric

Sameera Deshpande-dalal

Principal Compiler Engineer at Quadric

Pune, Maharashtra, India

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Summary

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Sameera Deshpande-dalal is a Principal Compiler Engineer with over 16 years of systems and compiler experience and more than eight years contributing to GCC. She specializes in program analysis, optimizations, autovectorization, compiler middle-end and back-end work, and machine descriptions for embedded systems, and has driven production-grade features for Cortex-A cores, Tegra, and GPGPU toolchains. Her work spans deep assembly-level improvements (LuaJIT, ARM/aarch64) to build- and architecture-specific DevOps changes (cross-arch Go builds, HDF5 integration), reflecting both low-level expertise and pragmatic cross-platform engineering. She proposed and implemented novel auto-vectorization ideas (Permute Order Tree) showcased at GNU Tools Cauldron and actively maintains tooling hygiene through warnings fixes and test-suite enhancements in projects like gem5 and glibc. Based in Pune, India, she combines academic rigor from IIT Bombay with a practical track record of performance tuning, memory optimizations, and compiler analyzer enhancements.

16 years of coding experience

18 years of employment as a software developer

Indian Institute of Technology Bombay

BE Computer Science and Engineering, BE Computer Science and Engineering at Government College of Engineering, Pune (COEP)

English, Marathi, Hindi

Stackoverflow

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Github Skills (43)

simulation10

maintenance10

c-language10

static-analysis10

simulate10

system-programming10

multiplatform10

simulations10

build-system10

cross-platform10

c1110

allocation10

luajit10

gcc10

x8610

Programming languages (18)

JavaC++CRustMakefileGoValaHTML

Github contributions (5)

bminor/glibc

Nov 2012 - Jan 2023

Unofficial mirror of sourceware glibc repository. Updated daily.

Role in this project:

Back-end Developer

Contributions:392 commits in 10 years 3 months

Contributions summary:Sameera primarily worked on the glibc repository, making a variety of changes. Their commits demonstrate a focus on code cleanup, refactoring, and addressing compiler-related issues. They removed unused macros, optimized code to improve performance by moving calls to `strlen` into the appropriate branch, and made modifications to address build problems with different compilers, including clang. Additionally, the user added tests for the x86 long double support.

updatedglibclinuxwindows

openresty/luajit2

Feb 2019 - Oct 2020

OpenResty's Branch of LuaJIT 2

Role in this project:

Back-end Developer / Systems Programmer

Contributions:1 review, 24 commits, 25 PRs in 1 year 8 months

Contributions summary:Sameera primarily contributed to the LuaJIT2 project by fixing bugs, optimizing code, and enhancing the ARM and aarch64 assembly code generation. Their work involved modifying low-level assembly code, including condition codes, register allocation, and the use of specific registers like xzr. They also addressed build issues and improved the jit.prngstate functionality, ensuring correct behavior. The user's contributions demonstrate a strong understanding of assembly language and the internal workings of the LuaJIT compiler.

luarockslualuajitopenresty

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