diff --git a/llvm/lib/Target/AVR/AVRDevices.td b/llvm/lib/Target/AVR/AVRDevices.td
--- a/llvm/lib/Target/AVR/AVRDevices.td
+++ b/llvm/lib/Target/AVR/AVRDevices.td
@@ -286,8 +286,10 @@
 def : Device<"attiny85",           FamilyAVR25, ELFArchAVR25>;
 def : Device<"attiny261",          FamilyAVR25, ELFArchAVR25>;
 def : Device<"attiny261a",         FamilyAVR25, ELFArchAVR25>;
+def : Device<"attiny441",          FamilyAVR25, ELFArchAVR25>;
 def : Device<"attiny461",          FamilyAVR25, ELFArchAVR25>;
 def : Device<"attiny461a",         FamilyAVR25, ELFArchAVR25>;
+def : Device<"attiny841",          FamilyAVR25, ELFArchAVR25>;
 def : Device<"attiny861",          FamilyAVR25, ELFArchAVR25>;
 def : Device<"attiny861a",         FamilyAVR25, ELFArchAVR25>;
 def : Device<"attiny87",           FamilyAVR25, ELFArchAVR25>;