Index: include/llvm/ADT/Triple.h
===================================================================
--- include/llvm/ADT/Triple.h	(revision 272447)
+++ include/llvm/ADT/Triple.h	(working copy)
@@ -179,6 +179,7 @@
     EABI,
     EABIHF,
     Android,
+    Musl,
 
     MSVC,
     Itanium,
Index: lib/Support/Triple.cpp
===================================================================
--- lib/Support/Triple.cpp	(revision 272447)
+++ lib/Support/Triple.cpp	(working copy)
@@ -205,6 +205,7 @@
   case EABI: return "eabi";
   case EABIHF: return "eabihf";
   case Android: return "android";
+  case Musl: return "musl";
   case MSVC: return "msvc";
   case Itanium: return "itanium";
   case Cygnus: return "cygnus";
@@ -464,6 +465,7 @@
     .StartsWith("code16", Triple::CODE16)
     .StartsWith("gnu", Triple::GNU)
     .StartsWith("android", Triple::Android)
+    .StartsWith("musl", Triple::Musl)
     .StartsWith("msvc", Triple::MSVC)
     .StartsWith("itanium", Triple::Itanium)
     .StartsWith("cygnus", Triple::Cygnus)