Andrew Trick 97a1d7c475 Fix tail merging to assign the (more) correct BasicBlock when splitting. ...

This makes it possible to write unit tests that are less susceptible
to minor code motion, particularly copy placement. block-placement.ll
covers this case with -pre-RA-sched=source which will soon be
default. One incorrectly named block is already fixed, but without
this fix, enabling new coalescing and scheduling would cause more
failures.

llvm-svn: 184680

2013-06-24 01:55:01 +00:00

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