diff --git a/src/wasm/baseline/ppc/liftoff-assembler-ppc.h b/src/wasm/baseline/ppc/liftoff-assembler-ppc.h
index 28921b6392..ebf0b6cd12 100644
--- a/src/wasm/baseline/ppc/liftoff-assembler-ppc.h
+++ b/src/wasm/baseline/ppc/liftoff-assembler-ppc.h
@@ -725,76 +725,6 @@ void LiftoffAssembler::FillStackSlotsWithZero(int start, int size) {
   pop(r0);
 }
 
-#define UNIMPLEMENTED_I32_BINOP(name)                            \
-  void LiftoffAssembler::emit_##name(Register dst, Register lhs, \
-                                     Register rhs) {             \
-    bailout(kUnsupportedArchitecture, "i32 binop:: " #name);     \
-  }
-#define UNIMPLEMENTED_I32_BINOP_I(name)                             \
-  UNIMPLEMENTED_I32_BINOP(name)                                     \
-  void LiftoffAssembler::emit_##name##i(Register dst, Register lhs, \
-                                        int32_t imm) {              \
-    bailout(kUnsupportedArchitecture, "i32 binop_i: " #name);       \
-  }
-#define UNIMPLEMENTED_I64_BINOP(name)                                          \
-  void LiftoffAssembler::emit_##name(LiftoffRegister dst, LiftoffRegister lhs, \
-                                     LiftoffRegister rhs) {                    \
-    bailout(kUnsupportedArchitecture, "i64 binop: " #name);                    \
-  }
-#define UNIMPLEMENTED_I64_BINOP_I(name)                                     \
-  UNIMPLEMENTED_I64_BINOP(name)                                             \
-  void LiftoffAssembler::emit_##name##i(LiftoffRegister dst,                \
-                                        LiftoffRegister lhs, int32_t imm) { \
-    bailout(kUnsupportedArchitecture, "i64_i binop: " #name);               \
-  }
-#define UNIMPLEMENTED_GP_UNOP(name)                                \
-  void LiftoffAssembler::emit_##name(Register dst, Register src) { \
-    bailout(kUnsupportedArchitecture, "gp unop: " #name);          \
-  }
-#define UNIMPLEMENTED_FP_BINOP(name)                                         \
-  void LiftoffAssembler::emit_##name(DoubleRegister dst, DoubleRegister lhs, \
-                                     DoubleRegister rhs) {                   \
-    bailout(kUnsupportedArchitecture, "fp binop: " #name);                   \
-  }
-#define UNIMPLEMENTED_FP_UNOP(name)                                            \
-  void LiftoffAssembler::emit_##name(DoubleRegister dst, DoubleRegister src) { \
-    bailout(kUnsupportedArchitecture, "fp unop: " #name);                      \
-  }
-#define UNIMPLEMENTED_FP_UNOP_RETURN_TRUE(name)                                \
-  bool LiftoffAssembler::emit_##name(DoubleRegister dst, DoubleRegister src) { \
-    bailout(kUnsupportedArchitecture, "fp unop: " #name);                      \
-    return true;                                                               \
-  }
-#define UNIMPLEMENTED_I32_SHIFTOP(name)                             \
-  void LiftoffAssembler::emit_##name(Register dst, Register src,    \
-                                     Register amount) {             \
-    bailout(kUnsupportedArchitecture, "i32 shiftop: " #name);       \
-  }                                                                 \
-  void LiftoffAssembler::emit_##name##i(Register dst, Register src, \
-                                        int32_t amount) {           \
-    bailout(kUnsupportedArchitecture, "i32 shiftop: " #name);       \
-  }
-#define UNIMPLEMENTED_I64_SHIFTOP(name)                                        \
-  void LiftoffAssembler::emit_##name(LiftoffRegister dst, LiftoffRegister src, \
-                                     Register amount) {                        \
-    bailout(kUnsupportedArchitecture, "i64 shiftop: " #name);                  \
-  }                                                                            \
-  void LiftoffAssembler::emit_##name##i(LiftoffRegister dst,                   \
-                                        LiftoffRegister src, int32_t amount) { \
-    bailout(kUnsupportedArchitecture, "i64 shiftop: " #name);                  \
-  }
-
-#undef UNIMPLEMENTED_I32_BINOP
-#undef UNIMPLEMENTED_I32_BINOP_I
-#undef UNIMPLEMENTED_I64_BINOP
-#undef UNIMPLEMENTED_I64_BINOP_I
-#undef UNIMPLEMENTED_GP_UNOP
-#undef UNIMPLEMENTED_FP_BINOP
-#undef UNIMPLEMENTED_FP_UNOP
-#undef UNIMPLEMENTED_FP_UNOP_RETURN_TRUE
-#undef UNIMPLEMENTED_I32_SHIFTOP
-#undef UNIMPLEMENTED_I64_SHIFTOP
-
 #define SIGN_EXT(r) extsw(r, r)
 #define ROUND_F64_TO_F32(fpr) frsp(fpr, fpr)
 #define INT32_AND_WITH_1F(x) Operand(x & 0x1f)