[SimpleLoopUnswitch] Increment stats counter for unswitching switch instruction

Increment statistics counter NumSwitches at unswitchNontrivialInvariants() for
unswitching a non-trivial switch instruction. This is to fix a bug that it
increments NumBranches even for the case of switch instruction.
There is no functional change in this patch.

Differential Revision: https://reviews.llvm.org/D56408

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351193 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp b/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
index abec9183f0fe13ae92c6e016dade5d2968966f10..5a67178cef37d3c2718b33c9013890d5f866c8b9 100644 (file)
--- a/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
@@ -2281,7 +2281,10 @@ static void unswitchNontrivialInvariants(
   if (MSSAU && VerifyMemorySSA)
     MSSAU->getMemorySSA()->verifyMemorySSA();
 
-  ++NumBranches;
+  if (BI)
+    ++NumBranches;
+  else
+    ++NumSwitches;
 }
 
 /// Recursively compute the cost of a dominator subtree based on the per-block