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Author SHA1 Message Date
Florian Hahn b4e3bad89b Recommit r325001: [CallSiteSplitting] Support splitting of blocks with instrs before call. 
For basic blocks with instructions between the beginning of the block
and a call we have to duplicate the instructions before the call in all
split blocks and add PHI nodes for uses of the duplicated instructions
after the call.

Currently, the threshold for the number of instructions before a call
is quite low, to keep the impact on binary size low.

Reviewers: junbuml, mcrosier, davidxl, davide

Reviewed By: junbuml

Differential Revision: https://reviews.llvm.org/D41860

llvm-svn: 325126
 2018-02-14 13:59:12 +00:00
Florian Hahn 35d744d388 Revert r325001: [CallSiteSplitting] Support splitting of blocks with instrs before call. 
Due to memsan not being happy with the array of ValueToValue maps.

llvm-svn: 325009
 2018-02-13 14:48:39 +00:00
Florian Hahn b0884b6443 [CallSiteSplitting] Support splitting of blocks with instrs before call. 
For basic blocks with instructions between the beginning of the block
and a call we have to duplicate the instructions before the call in all
split blocks and add PHI nodes for uses of the duplicated instructions
after the call.

Currently, the threshold for the number of instructions before a call
is quite low, to keep the impact on binary size low.

Reviewers: junbuml, mcrosier, davidxl, davide

Reviewed By: junbuml

Differential Revision: https://reviews.llvm.org/D41860

llvm-svn: 325001
 2018-02-13 12:00:48 +00:00