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[SimplifyCFG] don't sink common insts too soon (PR34603)

Description

[SimplifyCFG] don't sink common insts too soon (PR34603)

This should solve:
https://bugs.llvm.org/show_bug.cgi?id=34603
...by preventing SimplifyCFG from altering redundant instructions before early-cse has a chance to run.
It changes the default (canonical-forming) behavior of SimplifyCFG, so we're only doing the
sinking transform later in the optimization pipeline.

Differential Revision: https://reviews.llvm.org/D38566

Details

Committed
spatelDec 14 2017, 2:05 PM
Differential Revision
D38566: [SimplifyCFG] don't sink common insts too soon (PR34603)
Parents
rL320748: [libclang] Add support for checking abstractness of records
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