Andrew Trick f143b79b78 LSR should avoid redundant edge splitting. ...

This handles the case in which LSR rewrites an IV user that is a phi and
splits critical edges originating from a switch.
Fixes <rdar://problem/6453893> LSR is not splitting edges "nicely"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141059 91177308-0d34-0410-b5e6-96231b3b80d8

2011-10-04 03:50:44 +00:00

9.5 KiB

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