[PATCH] D147406: [LoongArch] Optimize multiplication with immediates

[WÁNG Xuěruì via Phabricator via llvm-commits]

xen0n added inline comments.


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Comment at: llvm/test/CodeGen/LoongArch/ir-instruction/mul.ll:1038-1040
+; LA64-NEXT:    slli.d $a1, $a0, 1
+; LA64-NEXT:    slli.d $a0, $a0, 12
+; LA64-NEXT:    add.w $a0, $a0, $a1
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Kind of interesting why this didn't get optimized into the same form as LA32, but there may be a deeper reason. I don't currently have time to look into this though.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D147406/new/

https://reviews.llvm.org/D147406