Let the -inline-threshold command line argument take precedence over the
threshold given to createFunctionInliningPass().

Both opt -O3 and clang would silently ignore the -inline-threshold option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118117 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/Inliner.cpp b/lib/Transforms/IPO/Inliner.cpp
index 4983e8e..55f2815 100644
--- a/lib/Transforms/IPO/Inliner.cpp
+++ b/lib/Transforms/IPO/Inliner.cpp
@@ -52,7 +52,8 @@
   : CallGraphSCCPass(ID), InlineThreshold(InlineLimit) {}
 
 Inliner::Inliner(char &ID, int Threshold) 
-  : CallGraphSCCPass(ID), InlineThreshold(Threshold) {}
+  : CallGraphSCCPass(ID), InlineThreshold(InlineLimit.getNumOccurrences() > 0 ?
+                                          InlineLimit : Threshold) {}
 
 /// getAnalysisUsage - For this class, we declare that we require and preserve
 /// the call graph.  If the derived class implements this method, it should