[PATCH] Improve debugging output when there is a null function pointer in the IR dump.

[Richard Trieu]

Add new lines so debugging information isn't all on one line.

http://reviews.llvm.org/D4262

Files:
  lib/Analysis/IPA/CallGraphSCCPass.cpp
  test/Transforms/Inline/null-function.ll

Index: lib/Analysis/IPA/CallGraphSCCPass.cpp
===================================================================
--- lib/Analysis/IPA/CallGraphSCCPass.cpp
+++ lib/Analysis/IPA/CallGraphSCCPass.cpp
@@ -606,7 +606,7 @@
         if ((*I)->getFunction())
           (*I)->getFunction()->print(Out);
         else
-          Out << "Printing <null> Function";
+          Out << "\nPrinting <null> Function\n";
       }
       return false;
     }
Index: test/Transforms/Inline/null-function.ll
===================================================================
--- test/Transforms/Inline/null-function.ll
+++ test/Transforms/Inline/null-function.ll
@@ -0,0 +1,9 @@
+; RUN: opt -print-before=always-inline -always-inline < %s -o /dev/null 2>&1 | FileCheck %s
+
+define i32 @main() #0 {
+entry:
+  ret i32 0
+}
+
+; CHECK: *** IR Dump Before Inliner for always_inline functions ***
+; CHECK: Printing <null> Function
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