2 Commits

Author	SHA1	Message	Date
Juneyoung Lee	9f717d7b94	[JumpThreading] Allow duplicating a basic block into preds when its branch condition is freeze(phi) ... This is the last JumpThreading patch for getting the performance numbers shown at https://reviews.llvm.org/D84940#2184653 . This patch makes ProcessBlock call ProcessBranchOnPHI when the branch condition is freeze(phi) as well (originally it calls the function when the condition is phi only). Since what ProcessBranchOnPHI does is to duplicate the basic block into predecessors if profitable, it is still valid when the condition is freeze(phi) too. ``` p = phi [a, pred1] [b, pred2] p.fr = freeze p br p.fr, ... => pred1: p.fr = freeze a br p.fr, ... pred2: p.fr2 = freeze b br p.fr2, ... ``` Reviewed By: efriedma Differential Revision: https://reviews.llvm.org/D85029	2020-08-06 09:51:17 +09:00
Juneyoung Lee	fd86d67b82	[JumpThreading] Add a test that duplicates insts of a basic block with cond br to preds; NFC	2020-08-06 09:19:23 +09:00