diff --git a/src/compiler/x64/instruction-codes-x64.h b/src/compiler/x64/instruction-codes-x64.h
index bd19386..638e77b 100644
--- a/src/compiler/x64/instruction-codes-x64.h
+++ b/src/compiler/x64/instruction-codes-x64.h
@@ -141,7 +141,10 @@
   V(X64Inc32)                      \
   V(X64Push)                       \
   V(X64Poke)                       \
-  V(X64StackCheck)
+  V(X64StackCheck)                 \
+  V(X64Xchgb)                      \
+  V(X64Xchgw)                      \
+  V(X64Xchgl)
 
 // Addressing modes represent the "shape" of inputs to an instruction.
 // Many instructions support multiple addressing modes. Addressing modes