[xla:WhileLoopUnroller] Fix MatchShapeCoveringDynamicIndexInstruction. #18526
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Previously, we missed a check for DynamicSlice to ensure that the slice shape is of size 1 on the dimension where the induction variable is used to dynamically index into the input, and matches the input shapes on all other dimensions. PiperOrigin-RevId: 687922588
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[xla:WhileLoopUnroller] Fix MatchShapeCoveringDynamicIndexInstruction.
Previously, we missed a check for DynamicSlice to ensure that the slice shape
is of size 1 on the dimension where the induction variable is used to
dynamically index into the input, and matches the input shapes on all other
dimensions.