Landing: e4d36a3fc154

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Project / Subsystem

gcc / lim/cselim

Date

2026-09-01

Author

Andrea Pinski

Commit

e4d36a3fc154fe500bdfd7835ec9fe4d5e41fb42

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: lim/cselim
patch_id: —
commit_hash: e4d36a3fc154fe500bdfd7835ec9fe4d5e41fb42
source_type: github
headline: lim/cselim: Use lhs_could_trap_p directly
tldr: Simplifies code in the loop and conditional select elimination passes by directly using the specialized trapping check.
author: Andrea Pinski
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • optimization
• compiler internals
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/e4d36a3fc154fe500bdfd7835ec9fe4d5e41fb42
date: 2026-09-01T00:00:00.000Z

The loop and conditional select elimination passes in GCC now directly use lhs_could_trap_p instead of a more general trapping check followed by additional tests. This simplifies the code and ensures consistent handling of potentially trapping left-hand side expressions, improving maintainability and correctness.