Revert r127459, "Optimize trivial branches in CodeGenPrepare, which often get
created from the", it broke some GCC test suite tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127477 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/CodeGenPrepare/basic.ll b/test/Transforms/CodeGenPrepare/basic.ll
index ebf10f0..3b1fca3 100644
--- a/test/Transforms/CodeGenPrepare/basic.ll
+++ b/test/Transforms/CodeGenPrepare/basic.ll
@@ -14,14 +14,13 @@
   br i1 %1, label %T, label %trap
 
 ; CHECK: entry:
-; CHECK-NEXT: br label %T
+; HECK-NEXT: ret i32 4
 
 trap:                                             ; preds = %0, %entry
   tail call void @llvm.trap() noreturn nounwind
   unreachable
 
 T:
-; CHECK: ret i32 4
   ret i32 4
 }