Recognize .ll as input files.
Handle %test_debuginfo on a RUN command line.

This set up now allows one to write small test cases to check debug info.
e.g.

; RUN: %clang -O0 -g %s -c -o %t.o
; RUN: %clang %t.o -o %t.out  
; RUN: %test_debuginfo %s %t.out

define i32 @f1(i32 %i) nounwind ssp {
; DEBUGGER: break f1                                                               
; DEBUGGER: r                                                                      
; DEBUGGER: p i                                                                    
; CHECK: $1 = 42                                                                   
entry:
  %i.addr = alloca i32, align 4
...
...
}

It is also possible now to write test cases in c/c++.
The plan is to store these debug info testcases in a separate place.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113780 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/lit.cfg b/test/lit.cfg
index 80f8d5a..3ed1c72 100644
--- a/test/lit.cfg
+++ b/test/lit.cfg
@@ -16,7 +16,7 @@
 config.test_format = lit.formats.ShTest(execute_external)
 
 # suffixes: A list of file extensions to treat as test files.
-config.suffixes = ['.c', '.cpp', '.m', '.mm']
+config.suffixes = ['.c', '.cpp', '.m', '.mm', '.ll']
 
 # test_source_root: The root path where tests are located.
 config.test_source_root = os.path.dirname(__file__)
@@ -131,6 +131,7 @@
 config.substitutions.append( ('%clangxx', ' ' + config.clang +
                               ' -ccc-clang-cxx -ccc-cxx '))
 config.substitutions.append( ('%clang', ' ' + config.clang + ' ') )
+config.substitutions.append( ('%test_debuginfo', ' ' + config.llvm_src_root + '/utils/test_debuginfo.pl ') )
 
 # FIXME: Find nicer way to prohibit this.
 config.substitutions.append(