diff --git a/include/llvm/ADT/Triple.h b/include/llvm/ADT/Triple.h
index 86817e93c0c..22d68a11d79 100644
--- a/include/llvm/ADT/Triple.h
+++ b/include/llvm/ADT/Triple.h
@@ -63,6 +63,7 @@ public:
     mblaze,  // MBlaze: mblaze
     ptx32,   // PTX: ptx (32-bit)
     ptx64,   // PTX: ptx (64-bit)
+    le32,    // le32: generic little-endian 32-bit CPU (PNaCl / Emscripten)
 
     InvalidArch
   };
diff --git a/lib/Support/Triple.cpp b/lib/Support/Triple.cpp
index ccb1a249761..af934ae3fa2 100644
--- a/lib/Support/Triple.cpp
+++ b/lib/Support/Triple.cpp
@@ -38,6 +38,7 @@ const char *Triple::getArchTypeName(ArchType Kind) {
   case mblaze:  return "mblaze";
   case ptx32:   return "ptx32";
   case ptx64:   return "ptx64";
+  case le32:    return "le32";
   }
 
   return "<invalid>";
@@ -72,6 +73,8 @@ const char *Triple::getArchTypePrefix(ArchType Kind) {
 
   case ptx32:   return "ptx";
   case ptx64:   return "ptx";
+
+  case le32:    return "le32";
   }
 }
 
@@ -171,6 +174,8 @@ Triple::ArchType Triple::getArchTypeForLLVMName(StringRef Name) {
     return ptx32;
   if (Name == "ptx64")
     return ptx64;
+  if (Name == "le32")
+    return le32;
 
   return UnknownArch;
 }
@@ -249,6 +254,8 @@ const char *Triple::getArchNameForAssembler() {
     return "ptx32";
   if (Str == "ptx64")
     return "ptx64";
+  if (Str == "le32")
+    return "le32";
   return NULL;
 }
 
@@ -302,6 +309,8 @@ Triple::ArchType Triple::ParseArch(StringRef ArchName) {
     return ptx32;
   else if (ArchName == "ptx64")
     return ptx64;
+  else if (ArchName == "le32")
+    return le32;
   else
     return UnknownArch;
 }