Landing: 08490fa0ba99

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Project / Subsystem

gcc / gcc

Date

2026-04-07

Author

Heiko Eißfeldt

Commit

08490fa0ba99788d9bc945d0dc81fdf832b67a70

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gcc
patch_id: —
commit_hash: 08490fa0ba99788d9bc945d0dc81fdf832b67a70
source_type: github
headline: Fixes ICE with -Winfinite-recursion by using iteration instead of recursion.
tldr: Avoids stack overflows when using -Winfinite-recursion on very large functions by switching to an iterative approach.
author: Heiko Eißfeldt
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • gcc
• warning
• recursion
• stack overflow
• bugfix
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/08490fa0ba99788d9bc945d0dc81fdf832b67a70
date: 2026-04-07T00:00:00.000Z

The implementation of -Winfinite-recursion used a recursive algorithm to detect infinite recursion, which could lead to stack overflows when processing very large functions. This commit replaces the recursive calls with an iterative approach, avoiding stack exhaustion. The underlying logic for detecting infinite recursion remains unchanged.