[all-commits] [llvm/llvm-project] 6cd9be: [Instrumentor] Introduce BasePointerIO to communic...

[Johannes Doerfert via All-commits]

  Branch: refs/heads/users/jdoerfert/instrumentor_base_pointer
  Home:   https://github.com/llvm/llvm-project
  Commit: 6cd9be214231186b3ad3f0e0d006b8667bcdd377
      https://github.com/llvm/llvm-project/commit/6cd9be214231186b3ad3f0e0d006b8667bcdd377
  Author: Johannes Doerfert <jdoerfert.llvm at gmail.com>
  Date:   2026-05-28 (Thu, 28 May 2026)

  Changed paths:
    M llvm/include/llvm/Transforms/IPO/Instrumentor.h
    M llvm/lib/Transforms/IPO/Instrumentor.cpp
    M llvm/test/Instrumentation/Instrumentor/alloca_and_function.ll
    M llvm/test/Instrumentation/Instrumentor/default_config.json
    M llvm/test/Instrumentation/Instrumentor/module_and_globals.ll

  Log Message:
  -----------
  [Instrumentor] Introduce BasePointerIO to communicate base pointer information

Loads, stores, and later probably calls, can request a base pointer info
object from the user runtime. This object is queried right after the
base pointer of the operation is defined, and then passed to the
pre/post runtime calls of the loads and stores. This allows users to
inspect pointers early and once, but provide the analysis results to all
operations that might be executed in loops. A potential use case is to
lookup the size and start of the underlying object and then provide
those to the access runtime calls for in-bounds checking.



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