Increase the ImportHotMultiplier to 10.0

Summary: The original 3.0 hot mupltiplier is too small, and would prevent hot callsites from being inline. This patch increases the hot multilier to 10.0

Reviewers: davidxl, tejohnson

Reviewed By: tejohnson

Subscribers: llvm-commits, sanjoy

Differential Revision: https://reviews.llvm.org/D35969

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309344 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/IPO/FunctionImport.cpp

@@ -61,7 +61,7 @@ static cl::opt<float> ImportHotInstrFactor(
              "before processing newly imported functions"));
 
 static cl::opt<float> ImportHotMultiplier(
-    "import-hot-multiplier", cl::init(3.0), cl::Hidden, cl::value_desc("x"),
+    "import-hot-multiplier", cl::init(10.0), cl::Hidden, cl::value_desc("x"),
     cl::desc("Multiply the `import-instr-limit` threshold for hot callsites"));
 
 static cl::opt<float> ImportCriticalMultiplier(