Reverting patch in revision 89758, initial attempt at fixing PR5373 has proven to...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89844 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp
index 382e2612cbd0be7d2a64651cbbd64a33d9327dee..38d267aa6b8d7aafe723afa9e11675b357e6d0c6 100644 (file)
--- a/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -296,6 +296,7 @@ static bool isTrivialLoopExitBlockHelper(Loop *L, BasicBlock *BB,
     // first exit.
     if (ExitBB != 0) return false;
     ExitBB = BB;
+    return true;
   }
   
   // Otherwise, this is an unvisited intra-loop node.  Check all successors.

diff --git a/test/Transforms/LoopUnswitch/5373.ll b/test/Transforms/LoopUnswitch/5373.ll
deleted file mode 100644 (file)
index 77b7835..0000000
--- a/test/Transforms/LoopUnswitch/5373.ll
+++ /dev/null
@@ -1,24 +0,0 @@
-; RUN: opt < %s -loop-unswitch -stats -disable-output |& grep "3 loop-unswitch - Number of branches unswitched"
-
-define noalias i32* @func_16(i32** %p_18, i32* %p_20) noreturn nounwind ssp {
-entry:
-  %lnot = icmp eq i32** %p_18, null               ; <i1> [#uses=1]
-  %lnot6 = icmp eq i32* %p_20, null               ; <i1> [#uses=1]
-  br label %for.body
-
-for.body:                                         ; preds = %cond.end, %entry
-  br i1 %lnot, label %cond.end, label %cond.true
-
-cond.true:                                        ; preds = %for.body
-  tail call void @f()
-  unreachable
-
-cond.end:                                         ; preds = %for.body
-  br i1 %lnot6, label %for.body, label %cond.true10
-
-cond.true10:                                      ; preds = %cond.end
-  tail call void @f()
-  unreachable
-}
-
-declare void @f() noreturn