Version 3.2.6

src/ia32/lithium-ia32.cc

Index: src/ia32/lithium-ia32.cc
diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index a673c451206c76938b2045edfbea795a74c7abd9..199a80ae5b8119ac9634674fbe21d691129c225e 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -1905,7 +1905,6 @@ LInstruction* LChunkBuilder::DoStoreKeyedSpecializedArrayElement(
   ASSERT(instr->key()->representation().IsInteger32());
 
   LOperand* external_pointer = UseRegister(instr->external_pointer());
-  LOperand* val = UseRegister(instr->value());
   LOperand* key = UseRegister(instr->key());
   LOperand* temp = NULL;
 
@@ -1916,6 +1915,15 @@ LInstruction* LChunkBuilder::DoStoreKeyedSpecializedArrayElement(
     temp = FixedTemp(eax);
   }
 
+  LOperand* val = NULL;
+  if (array_type == kExternalByteArray ||
+      array_type == kExternalUnsignedByteArray) {
+    // We need a byte register in this case for the value.
+    val = UseFixed(instr->value(), eax);
+  } else {
+    val = UseRegister(instr->value());
+  }
+
   return new LStoreKeyedSpecializedArrayElement(external_pointer,
                                                 key,
                                                 val,