[Mlir-commits] [mlir] [mlir][dataflow] Add visitBranchRegionArgument interface to SparseBackwardDataFlowAnalysis and apply it in LivenessAnalysis/RemoveDeadValues (PR #169816)

[lonely eagle]

================
@@ -166,25 +165,6 @@ void LivenessAnalysis::visitBranchOperand(OpOperand &operand) {
           blocks.push_back(&block);
       }
     }
-
-    // In the block of the successor block argument of RegionBranchOpInterface,
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linuxlonelyeagle wrote:

Previously, it was not possible to directly access IV, so indirect access to IV was achieved through the method of accessing operands (visitBranchOpOperate) in the liveness-analysis.

https://github.com/llvm/llvm-project/pull/169816