Commits
Michael Gottesman committed 479893e4dbf
[arc] We do not need to resummarize the subregion blocks of a loop when we summarize the loops ARC interesting instructions. This will save compile time. The reason why this work is not needed is that ARC before any dataflow is performed first summarizes the interesting instructions in all blocks. This information is kept up to date by the ARC optimizer as it moves around retains/releases. Thus while performing dataflow, all we need to summarize are loops.