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Tobias Grosser

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Interactive Bit Vector Reasoning using Verified BitblastingOOPSLA 20252025-10-16
A verified bit-blasting pipeline called bv_decide tactic compiles Lean bitvector goals to AIGs, converts to CNF, calls an external SAT solver that emits…
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Compressed and Parallelized Structured Tensor AlgebraOOPSLA 20252025-10-16
DASTAC generates compressed linear indexes from polyhedral structure using the Barvinok algorithm, emits affine code and parallel loops via MLIR, and adds…
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Certified Decision Procedures for Width-Independent Bitvector PredicatesOOPSLA 20252025-10-16
Mechanized, executable decision procedures in Lean for width-independent bitvectors that formalize k-induction, automata reachability, emptiness checking and…
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eqsat: An Equality Saturation Dialect for Non-destructive RewritingEGRAPHS 20252025-06-16
An MLIR-based e-graph representation called eqsat dialect encodes e-classes and e-nodes as MLIR ops and uses MLIR graph regions to express cycles so equality…
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First-Class Verification Dialects for MLIRPLDI 20252025-06-16
Adds semantics as first-class MLIR dialects and a pipeline that lowers compiler IRs through high-level memory and undefined-behavior dialects to an SMT…
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Panel: Compilation FrameworksSparse 20242024-06-25
Discussion shows a concrete path for quantify over bitwidth proofs: Lean supports quantifying bitwidth but only offers high‑performance automation for fixed…
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Design DSLs with xDSLSparse 20242024-06-25
xDSL is a Python reimplementation of MLIR that prioritizes approachability and textual IR interoperability, letting teams define ops and types in minutes and…
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Falcon: A Scalable Analytical Cache ModelPLDI 20242024-06-24
Falcon builds a scalable analytical model for LRU cache miss rates using polyhedral dependence analysis and by splitting analysis to avoid blowup; it evaluates…
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Guided Equality SaturationPOPL 20242024-01-14
Guided equality saturation splits a hard e-graph search into sequences of smaller equality-saturation runs guided by human-provided intermediate sketches…
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Cross-Domain Compilation: Exploiting Synergies Across the CS CommunityVMIL 20212021-10-17
Argues that MLIR turns many bespoke compilers into composable pieces and shows concrete work: a fast polyhedral math library for Presburger sets, a…
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FPL: Fast Presburger Arithmetic through TransprecisionOOPSLA 20212021-10-17
A new C++ Presburger library lives inside MLIR and targets real polyhedral workloads: a benchmark of over 1,000,000 extracted Presburger cases shows…
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Fast Linear Programming through Transprecision Computing on Small and Sparse DataOOPSLA 20202020-11-15
Analyzes ~500,000 simplex tableaux from Polly PPCG and HayStack and finds >99% of coefficients <9 bits, medians of 18 columns and 84% sparsity, with rare…
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