Landing: d2e62fc96406
Project / Subsystem
gcc / riscv
Date
2026-09-19
Author
Jeff Law
Commit
d2e62fc9640620227dbb71955cb428f0ee35bba1
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- riscv
- patch_id
- —
- commit_hash
- d2e62fc9640620227dbb71955cb428f0ee35bba1
- source_type
- github
- headline
- Fix RISC-V test expectation after saturation/clamping work
- tldr
- Adjusts a RISC-V test case to match expected output after recent improvements in saturating arithmetic optimizations.
- author
- Jeff Law
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • risc-v
- • testing
- • compiler
- • vectorization
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-09-19T00:00:00.000Z
Recent improvements in GCC’s handling of saturating arithmetic, specifically for the RISC-V vector extension, caused a test case (vec_sat_u_sub_trunc-1-u8.c) to fail. The optimization replaced a branchy sequence with more efficient saturating instructions, altering the expected output in the tree-dump. This commit updates the test’s expectation to align with the improved output, simplifying the test by removing differing expectations for different optimization levels (-O2 vs -O3).