stack slot re-use with different sized variables

Open

#8,420 opened on Aug 17, 2026 1 comment 1 reaction 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty: 4/5
Estimated time: 3-5 days
Newbie friendliness: 38/100

Issue type: Bug
Clarity: Needs clarification
Activity status: Quiet
Tech stack: cpp, go
Domain: reverse-engineering

Research direction

Start by locating the variable-splitting and stack-struct handling code responsible for reusing part of a stack variable with a different-sized variable. Reproduce the behavior with a large Go function containing structures, then verify that stack slot reuse is represented correctly without breaking existing variable splitting.

Written by the indexing model from the issue text.

Description

We support splitting variables, but we don't currently have solid support for handling situations where a stack struct has part of it re-used later. This in particular will impact large golang functions with structures.

Dominant language: C++
Stars: 1.3k
Forks: 298
Avg merge: 4d 13h
Merged PRs (30d): 20

Contributor guide

No contributing guide indexed for this repository

First steps

Read the whole issue, then the project's contributing guide.
Comment on the issue to say you are picking it up — it saves two people doing the same work.
Fork the repository and make your change on a branch.
Open a pull request that references the issue number.

Similar issues

Use 4:4:4 for multichannel AVIF and HEIF gain maps Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

google/libultrahdr#485 · Opened Sep 24, 2026
Missing tile warnings in TileMap dock display with wrong texture filter Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

godotengine/godot#123776 · Opened Sep 23, 2026
if(cond,a,b) treats any nonzero cond as true in every bngsim backend (ExprTk interpreter, C codegen, SSA), which contradicts docs/reference/expressions.md ('true when > 0.5') and BNG's run_network. A non-boolean condition in (-inf,0) or... Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 60/100

lanl/bngsim#774 · Opened Sep 23, 2026
Delete ament_export_include_directories() and ament_export_libraries() calls Open

good first issue

Difficulty 1/5 Under an hour Newbie friendliness 90/100

ros2/rosbag2#2509 · Opened Sep 23, 2026
Delete ament_export_include_directories() and ament_export_libraries() calls Open

good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

ros2/common_interfaces#344 · Opened Sep 23, 2026

More C++ issues