[PATCH] D74320: GlobalISel: Add combine to narrow G_LSHR

[Matt Arsenault via Phabricator via llvm-commits]

arsenm marked an inline comment as done.
arsenm added inline comments.


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Comment at: llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp:1405-1407
+bool CombinerHelper::matchCombineShiftToUnmerge(MachineInstr &MI,
+                                                unsigned TargetShiftSize,
+                                                unsigned &ShiftVal) {
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nhaehnle wrote:
> Please add a comment describing what this matches.
That would be redundant with the one on the declaration?


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  https://reviews.llvm.org/D74320/new/

https://reviews.llvm.org/D74320