Improve the `-filter-print-funcs` option to skip the banner for CGSCC pass when nothing is to be printed

Before, it would print a sequence of:

  *** IR Dump After Function Integration/Inlining ******
  *** IR Dump After Function Integration/Inlining ******
  *** IR Dump After Function Integration/Inlining ******
  ...

for every single function in the module.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292442 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed