.ll test cases for tail call optimization in test-suite

In order to test the tail call optimization i created quite a few .ll
files and added them to the SingleSource directory in the test-suite.
For example llvm-test/SingleSource/Tailcall/tailcall1-2.ll.

Since i don't want opt to inline the tailcalls away :slight_smile: i changed the rules
in the Makefile situated in the TailCall directory.

I want to compare the output of a file compile with normal llc with a
file compiled with llc -tailcallopt.

So my SingleSource/TailCall/Makefile looks like the following:

In order to test the tail call optimization i created quite a few .ll
files and added them to the SingleSource directory in the test-suite.
For example llvm-test/SingleSource/Tailcall/tailcall1-2.ll.

Shouldn't these be dejagnu tests instead?

Evan