Landing: 6bc343fa183a
Project / Subsystem
gcc / i386
Date
2026-09-21
Author
liuhongt
Commit
6bc343fa183a01fa30f70d2c0b70d01e4bd78d62
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- i386
- patch_id
- —
- commit_hash
- 6bc343fa183a01fa30f70d2c0b70d01e4bd78d62
- source_type
- github
- headline
- i386: Don't split V2DF load when the adjusted address is invalid
- tldr
- Prevents an ICE in the i386 backend when splitting V2DF loads results in an invalid memory address.
- author
- liuhongt
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • i386
- • backend
- • ICE
- • load
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-09-21T00:00:00.000Z
This commit prevents an internal compiler error (ICE) in the i386 backend when attempting to split a V2DF load instruction. The split operation requires adjusting the memory address by 8 bytes. If the original address displacement is already at its maximum encodable value, adding 8 results in an address that cannot be represented by the x86’s 32-bit signed displacement field. The change skips this split in such cases, ensuring the address remains valid.