Now that -loop-idiom uses TargetLibraryInfo properly, it doesn't need to be pulled out of the pass manager when the user specifies  -fno-builtin.  It can intelligently determine which libcalls to optimize based on what is enabled in TargetLibraryInfo.  This  allows -fno-builtin-foo to work someday.
Now that -loop-idiom uses TargetLibraryInfo properly, it doesn't
need to be pulled out of the pass manager when the user specifies 
-fno-builtin.  It can intelligently determine which libcalls to
optimize based on what is enabled in TargetLibraryInfo.  This 
allows -fno-builtin-foo to work someday.


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@125981 91177308-0d34-0410-b5e6-96231b3b80d8

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