diff --git a/js/src/irregexp/imported/regexp-bytecodes-inl.h b/js/src/irregexp/imported/regexp-bytecodes-inl.h
index 78f63ca35f..f6cd7fb82f 100644
--- a/imported/regexp-bytecodes-inl.h
+++ b/imported/regexp-bytecodes-inl.h
@@ -75,7 +75,7 @@
 }

 template <size_t N>
-consteval std::array<std::string_view, N> SplitNames(const char* raw_names) {
+constexpr std::array<std::string_view, N> SplitNames(const char* raw_names) {
   std::array<std::string_view, N> result;
   std::string_view names(raw_names);

@@ -104,7 +104,7 @@
 // Calculates packed offsets for each Bytecode operand.
 // All operands are aligned to their own size.
 template <BytecodeOperandType... operand_types>
-consteval auto CalculateAlignedOffsets() {
+constexpr auto CalculateAlignedOffsets() {
   constexpr int N = sizeof...(operand_types);
   constexpr std::array<uint8_t, N> kOperandSizes = {
       OperandTypeTraits<operand_types>::kSize...};
@@ -174,14 +174,14 @@
   using Traits = BytecodeOperandsTraits<OpTypes...>;
   static constexpr int kCount = Traits::kOperandCount;
   static constexpr int kTotalSize = Traits::kSize;
-  static consteval int Index(Operand op) { return static_cast<uint8_t>(op); }
-  static consteval int Size(Operand op) {
+  static constexpr int Index(Operand op) { return static_cast<uint8_t>(op); }
+  static constexpr int Size(Operand op) {
     return Traits::kOperandSizes[Index(op)];
   }
-  static consteval int Offset(Operand op) {
+  static constexpr int Offset(Operand op) {
     return Traits::kOperandOffsets[Index(op)];
   }
-  static consteval BytecodeOperandType Type(Operand op) {
+  static constexpr BytecodeOperandType Type(Operand op) {
     return Traits::kOperandTypes[Index(op)];
   }

@@ -190,7 +190,7 @@
   }

   // Returns a tuple of all operands.
-  static consteval auto GetOperandsTuple() {
+  static constexpr auto GetOperandsTuple() {
     return []<size_t... Is>(std::index_sequence<Is...>) {
       return std::tuple_cat([]<size_t I>() {
         constexpr auto id = static_cast<Operand>(I);
diff --git a/js/src/irregexp/imported/regexp-bytecode-peephole.cc b/js/src/irregexp/imported/regexp-bytecode-peephole.cc
--- a/imported/regexp-bytecode-peephole.cc
+++ b/imported/regexp-bytecode-peephole.cc
@@ -1090,6 +1090,7 @@
       isolate->factory()->NewTrustedByteArray(optimized_length);
   MemCopy(array->begin(), optimized_bytecode, optimized_length);
 
+#ifndef COMPILING_IRREGEXP_FOR_EXTERNAL_EMBEDDER
   if (did_optimize && v8_flags.trace_regexp_peephole_optimization) {
     std::unique_ptr<char[]> pattern_cstring =
         re_data->escaped_source()->ToCString();
@@ -1101,6 +1102,7 @@
     RegExpBytecodeDisassemble(array->begin(), optimized_length,
                               pattern_cstring.get());
   }
+#endif  // !COMPILING_IRREGEXP_FOR_EXTERNAL_EMBEDDER
 
   return array;
 }
diff --git a/js/src/irregexp/imported/regexp-code-generator.cc b/js/src/irregexp/imported/regexp-code-generator.cc
--- a/imported/regexp-code-generator.cc
+++ b/imported/regexp-code-generator.cc
@@ -37,6 +37,7 @@
   USE(isolate_);
   USE(masm_);
 
+#ifndef COMPILING_IRREGEXP_FOR_EXTERNAL_EMBEDDER
   // Bytecode analysis is currently unused. In future work it could form the
   // basis for compiler optimizations.
   if (V8_UNLIKELY(v8_flags.regexp_bytecode_analysis)) {
@@ -50,6 +51,7 @@
                                 pattern_cstring.get(), &analysis);
     }
   }
+#endif  // !COMPILING_IRREGEXP_FOR_EXTERNAL_EMBEDDER
 
   PreVisitBytecodes();
   iter_.reset();