[PATCH] D41811: X86: Add pattern matching for PMADDWD

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


================
Comment at: test/CodeGen/X86/madd.ll:358
 ; SSE2-NEXT:    paddd %xmm5, %xmm0
 ; SSE2-NEXT:    retq
 ;
----------------
Whats missing to get SSE2 to lower to 2 x pmaddwd? (TBH I'm more interested in AVX1 but it'd be good for SSE as well).


https://reviews.llvm.org/D41811