[PATCH] D77804: [DAG] Enable ISD::SHL/SRL SimplifyMultipleUseDemandedBits handling (WIP)

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a subscriber: foad.
RKSimon added inline comments.


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Comment at: llvm/test/CodeGen/AMDGPU/trunc-combine.ll:148
 ; SI-NEXT:    v_or_b32_e32 v0, v0, v1
-; SI-NEXT:    v_lshrrev_b32_e32 v1, 16, v0
+; SI-NEXT:    v_and_b32_e32 v1, s4, v2
 ; SI-NEXT:    s_setpc_b64 s[30:31]
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@arsenm @foad Not sure if pulling out the immediate is a good idea or not - shouldn't a u16 immediate be cheap?


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  https://reviews.llvm.org/D77804/new/

https://reviews.llvm.org/D77804