[X86] Remove matchPMADDWD_2
Open
backend:X86
code-cleanup
- Dominant language
- LLVM
- Stars
- 40.5k
- Forks
- 18.7k
- PR merge metrics
- PR metrics pending
Description
After #223364 lands we shouldn't need matchPMADDWD_2 anymore - there might be some legacy CodeGen tests that need replacing with PhaseOrdering coverage to prove the patterns are addressed by the middle-end.
Contributor guide
Research direction
Start by locating matchPMADDWD_2 and reviewing the legacy CodeGen tests that cover these patterns. After #223364 lands, inspect existing PhaseOrdering coverage and replace tests if needed. Done means the matcher is removed and PhaseOrdering coverage proves the patterns are handled by the middle-end.
Written by the indexing model from the issue text.
Assessment
- Domain
- compilers
- Issue type
- Refactor
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Active
- Clarity
- Mostly clear
- Newbie friendliness
- 55/100