River Riddle a5ea60456c [mlir] Update SCCP and the Inliner to use SymbolTableCollection for symbol lookups ...

This transforms the symbol lookups to O(1) from O(NM), greatly speeding up both passes. For a large MLIR module this shaved seconds off of the compilation time.

Differential Revision: https://reviews.llvm.org/D89522

2020-10-16 12:08:48 -07:00

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