Landing: 11ae0ce30560

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Project / Subsystem

gcc / loongarch

Date

2026-09-03

Author

Xi Ruoyao

Commit

11ae0ce305601ebf85b1a09b130cb3e7b46157f9

Source

github

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project: gcc
subsystem: loongarch
patch_id: —
commit_hash: 11ae0ce305601ebf85b1a09b130cb3e7b46157f9
source_type: github
headline: LoongArch: Fix __builtin_bitreverse16 ICE on LA32R
tldr: Fixes an internal compiler error for __builtin_bitreverse16 on LoongArch 32-bit Reduced.
author: Xi Ruoyao
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • loongarch
• compiler error
• intrinsic
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/11ae0ce305601ebf85b1a09b130cb3e7b46157f9
date: 2026-09-03T00:00:00.000Z

This commit resolves an internal compiler error (ICE) on the LoongArch 32-bit Reduced (LA32R) architecture when using the __builtin_bitreverse16 intrinsic. The fix involves disabling this intrinsic specifically for the LA32R target, along with a new test case to confirm the correction.