diff --git a/llvm/include/llvm/Transforms/Scalar/SimplifyCFG.h b/llvm/include/llvm/Transforms/Scalar/SimplifyCFG.h
--- a/llvm/include/llvm/Transforms/Scalar/SimplifyCFG.h
+++ b/llvm/include/llvm/Transforms/Scalar/SimplifyCFG.h
@@ -34,7 +34,7 @@
   /// rather than optimal IR. That is, by default we bypass transformations that
   /// are likely to improve performance but make analysis for other passes more
   /// difficult.
-  SimplifyCFGPass() {}
+  SimplifyCFGPass();
 
   /// Construct a pass with optional optimizations.
   SimplifyCFGPass(const SimplifyCFGOptions &PassOptions);
diff --git a/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp b/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
--- a/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
+++ b/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
@@ -232,6 +232,10 @@
     Options.SinkCommonInsts = UserSinkCommonInsts;
 }
 
+SimplifyCFGPass::SimplifyCFGPass() : Options() {
+  applyCommandLineOverridesToOptions(Options);
+}
+
 SimplifyCFGPass::SimplifyCFGPass(const SimplifyCFGOptions &Opts)
     : Options(Opts) {
   applyCommandLineOverridesToOptions(Options);
diff --git a/llvm/test/Transforms/SimplifyCFG/HoistCode.ll b/llvm/test/Transforms/SimplifyCFG/HoistCode.ll
--- a/llvm/test/Transforms/SimplifyCFG/HoistCode.ll
+++ b/llvm/test/Transforms/SimplifyCFG/HoistCode.ll
@@ -1,4 +1,5 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -passes=simplifycfg -hoist-common-insts=true -S | FileCheck %s
 ; RUN: opt < %s -simplifycfg -hoist-common-insts=true -S | FileCheck %s
 
 define void @foo(i1 %C, i32* %P) {