3 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/SampleProfile.cpp b/llvm/lib/Transforms/Scalar/SampleProfile.cpp
index 8e557aaa2f2..4b97295d17c 100644
--- a/llvm/lib/Transforms/Scalar/SampleProfile.cpp
+++ b/llvm/lib/Transforms/Scalar/SampleProfile.cpp
@@ -51,6 +51,7 @@
 #include <cctype>
 
 using namespace llvm;
+using std::error_code;
 
 #define DEBUG_TYPE "sample-profile"
 
diff --git a/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp b/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
index 5d5606ba47b..a09e4853fb3 100644
--- a/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
+++ b/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
@@ -36,6 +36,7 @@
 #include "llvm/Pass.h"
 #include "llvm/Transforms/Utils/Local.h"
 using namespace llvm;
+using std::error_code;
 
 #define DEBUG_TYPE "simplifycfg"
 
diff --git a/llvm/lib/Transforms/Utils/SpecialCaseList.cpp b/llvm/lib/Transforms/Utils/SpecialCaseList.cpp
index 0a07b8f1ab5..8ae36fe833f 100644
--- a/llvm/lib/Transforms/Utils/SpecialCaseList.cpp
+++ b/llvm/lib/Transforms/Utils/SpecialCaseList.cpp
@@ -31,6 +31,7 @@
 #include <utility>
 
 namespace llvm {
+using std::error_code;
 
 /// Represents a set of regular expressions.  Regular expressions which are
 /// "literal" (i.e. no regex metacharacters) are stored in Strings, while all