Index: llvm/lib/Target/AVR/AVRDevices.td
===================================================================
--- llvm/lib/Target/AVR/AVRDevices.td
+++ llvm/lib/Target/AVR/AVRDevices.td
@@ -309,19 +309,23 @@
 def : Device<"atmega16u2",         FamilyAVR35, ELFArchAVR35>;
 def : Device<"atmega32u2",         FamilyAVR35, ELFArchAVR35>;
 def : Device<"attiny1634",         FamilyAVR35, ELFArchAVR35>;
-def : Device<"atmega8",            FamilyAVR4,  ELFArchAVR4>; // FIXME: family may be wrong
+def : Device<"atmega8",            FamilyAVR2,  ELFArchAVR4,
+             [FeatureMultiplication, FeatureMOVW, FeatureLPMX, FeatureSPM]>;
 def : Device<"ata6289",            FamilyAVR4,  ELFArchAVR4>;
-def : Device<"atmega8a",           FamilyAVR4,  ELFArchAVR4>;
+def : Device<"atmega8a",           FamilyAVR2,  ELFArchAVR4,
+             [FeatureMultiplication, FeatureMOVW, FeatureLPMX, FeatureSPM]>;
 def : Device<"ata6285",            FamilyAVR4,  ELFArchAVR4>;
 def : Device<"ata6286",            FamilyAVR4,  ELFArchAVR4>;
 def : Device<"atmega48",           FamilyAVR4,  ELFArchAVR4>;
 def : Device<"atmega48a",          FamilyAVR4,  ELFArchAVR4>;
 def : Device<"atmega48pa",         FamilyAVR4,  ELFArchAVR4>;
+def : Device<"atmega48pb",         FamilyAVR4,  ELFArchAVR4>;
 def : Device<"atmega48p",          FamilyAVR4,  ELFArchAVR4>;
 def : Device<"atmega88",           FamilyAVR4,  ELFArchAVR4>;
 def : Device<"atmega88a",          FamilyAVR4,  ELFArchAVR4>;
 def : Device<"atmega88p",          FamilyAVR4,  ELFArchAVR4>;
 def : Device<"atmega88pa",         FamilyAVR4,  ELFArchAVR4>;
+def : Device<"atmega88pb",         FamilyAVR4,  ELFArchAVR4>;
 def : Device<"atmega8515",         FamilyAVR2,  ELFArchAVR4,
              [FeatureMultiplication, FeatureMOVW, FeatureLPMX, FeatureSPM]>;
 def : Device<"atmega8535",         FamilyAVR2,  ELFArchAVR4,
@@ -353,6 +357,7 @@
 def : Device<"atmega168a",         FamilyAVR5,  ELFArchAVR5>;
 def : Device<"atmega168p",         FamilyAVR5,  ELFArchAVR5>;
 def : Device<"atmega168pa",        FamilyAVR5,  ELFArchAVR5>;
+def : Device<"atmega168pb",        FamilyAVR5,  ELFArchAVR5>;
 def : Device<"atmega169",          FamilyAVR5,  ELFArchAVR5>;
 def : Device<"atmega169a",         FamilyAVR5,  ELFArchAVR5>;
 def : Device<"atmega169p",         FamilyAVR5,  ELFArchAVR5>;
@@ -373,6 +378,7 @@
 def : Device<"atmega3250pa",       FamilyAVR5,  ELFArchAVR5>;
 def : Device<"atmega328",          FamilyAVR5,  ELFArchAVR5>;
 def : Device<"atmega328p",         FamilyAVR5,  ELFArchAVR5>;
+def : Device<"atmega328pb",        FamilyAVR5,  ELFArchAVR5>;
 def : Device<"atmega329",          FamilyAVR5,  ELFArchAVR5>;
 def : Device<"atmega329a",         FamilyAVR5,  ELFArchAVR5>;
 def : Device<"atmega329p",         FamilyAVR5,  ELFArchAVR5>;