Landing: b57b0a72eb48

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Project / Subsystem

gcc / gcc/ifcvt

Date

2026-05-22

Author

Andrew Pinski

Commit

b57b0a72eb482eeeb2572119a0a362869d5b957a

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gcc/ifcvt
patch_id: —
commit_hash: b57b0a72eb482eeeb2572119a0a362869d5b957a
source_type: github
headline: ifcvt: Factor: Turn asserts about abnormals to conditional
tldr: The ifcvt pass now avoids factoring in cases where SSA names are used in abnormal edges.
author: Andrew Pinski
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • optimization
• if-conversion
• ssa
• code generation
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/b57b0a72eb482eeeb2572119a0a362869d5b957a
date: 2026-05-22T00:00:00.000Z

The if-conversion pass in GCC now avoids factoring operations when SSA names are used in abnormal edges, preventing potential issues. Previously, this condition would trigger an assertion, but now the factoring is skipped instead. A new test case has been added to verify this behavior.