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Author SHA1 Message Date
Justin Bogner 534f14abe7 test: Use llvm-profdata merge in Profile tests 
In preparation for using a binary format for instrumentation based
profiling, explicitly treat the test inputs as text and transform them
before running. This will allow us to leave the checked in files in
human readable format once the instrumentation format is binary.

No functional change.

llvm-svn: 206509
 2014-04-17 22:49:06 +00:00
Justin Bogner f3aefca7c1 CodeGen: Don't create branch weight metadata from empty profiles 
If all of our weights are zero when calculating branch weights, it
means we haven't profiled the code in question. Avoid creating a
metadata node that says all branches are equally likely in this case.

The test also checks constructs that hit the other createBranchWeights
overload. These were already working.

llvm-svn: 205606
 2014-04-04 02:48:51 +00:00