Landing: 68d3f1e2c20e
Project / Subsystem
gcc / gcc/c-family
Date
2026-06-06
Author
Martin Uecker
Commit
68d3f1e2c20efe07f99de3720d1732c4b987ff22
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- gcc/c-family
- patch_id
- —
- commit_hash
- 68d3f1e2c20efe07f99de3720d1732c4b987ff22
- source_type
- github
- headline
- Fixes incorrect encoding for zero-sized arrays in C
- tldr
- GCC fixes a regression where zero-sized arrays in C were incorrectly encoded on 32-bit architectures, leading to compilation issues.
- author
- Martin Uecker
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • c
- • bugfix
- • arrays
- • compiler-internals
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-06-06T00:00:00.000Z
This commit partially reverts a previous change that introduced a regression for zero-sized arrays in C, specifically impacting 32-bit architectures. The original change incorrectly replaced build_range_type with build_index_type when completing array types, causing zero-sized arrays created from empty initializers to be represented as [0, -1] instead of the expected [0, NULL_TREE]. This fix restores the correct representation, resolving compilation issues for C code that uses such arrays.