Landing: e78f1c99da18
Project / Subsystem
gcc / x86
Date
2026-08-24
Author
H.J. Lu
Commit
e78f1c99da18c5b15d20dcb2b0e28659634292fb
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- x86
- patch_id
- —
- commit_hash
- e78f1c99da18c5b15d20dcb2b0e28659634292fb
- source_type
- github
- headline
- Improve truncsfbf tests
- tldr
- Refactors and improves test coverage for the x86 truncsfbf instruction.
- author
- H.J. Lu
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • x86
- • testing
- • sse
- • avx512
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-08-24T00:00:00.000Z
This commit refactors the test suite for the x86 truncsfbf (truncate single-precision float to BFloat16) instruction. It consolidates duplicated code by moving common checks into a new header file, truncsfbf-check.h. This improves maintainability and reduces redundancy in test cases like truncsfbf-2.c, truncsfbf-5.c, and truncsfbf-6.c. The changes also ensure the tests correctly check for runtime support of SSE2 and add necessary scan directives for the vcvtneps2bf16 instruction.