[strings] Introduce "is not integer index" bit

This is useful for the upcoming "huge TypedArrays" support, to be able to quickly decide in stubs/generated code whether a string used as the key for a property load/store can possibly be an exotic integer index. Bug: v8:4153 Change-Id: I50ce655d2f78fb36e5615fd580f22c9290216c84 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1821460 Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#64165}
2019-10-08 15:54:28 +02:00 · 2019-10-08 15:54:28 +02:00 · c203163d1f
commit c203163d1f
parent ac94b07ade
20 changed files with 321 additions and 153 deletions
--- a/src/ic/accessor-assembler.cc
+++ b/src/ic/accessor-assembler.cc
@ -2482,8 +2482,6 @@ enum AccessorAssembler::StubCacheTable : int {
 };

 Node* AccessorAssembler::StubCachePrimaryOffset(Node* name, Node* map) {
-  // See v8::internal::StubCache::PrimaryOffset().
-  STATIC_ASSERT(StubCache::kCacheIndexShift == Name::kHashShift);
  // Compute the hash of the name (use entire hash field).
  TNode<Uint32T> hash_field = LoadNameHashField(name);
  CSA_ASSERT(this,
@ -2524,7 +2522,8 @@ void AccessorAssembler::TryProbeStubCacheTable(
  StubCache::Table table = static_cast<StubCache::Table>(table_id);
  // The {table_offset} holds the entry offset times four (due to masking
  // and shifting optimizations).
-  const int kMultiplier = sizeof(StubCache::Entry) >> Name::kHashShift;
+  const int kMultiplier =
+      sizeof(StubCache::Entry) >> StubCache::kCacheIndexShift;
  entry_offset = IntPtrMul(entry_offset, IntPtrConstant(kMultiplier));

  TNode<ExternalReference> key_base = ExternalConstant(
--- a/src/ic/stub-cache.cc
+++ b/src/ic/stub-cache.cc
@ -26,11 +26,10 @@ void StubCache::Initialize() {
  Clear();
 }

-// Hash algorithm for the primary table.  This algorithm is replicated in
-// assembler for every architecture.  Returns an index into the table that
+// Hash algorithm for the primary table. This algorithm is replicated in
+// the AccessorAssembler.  Returns an index into the table that
 // is scaled by 1 << kCacheIndexShift.
 int StubCache::PrimaryOffset(Name name, Map map) {
-  STATIC_ASSERT(kCacheIndexShift == Name::kHashShift);
  // Compute the hash of the name (use entire hash field).
  DCHECK(name.HasHashCode());
  uint32_t field = name.hash_field();
--- a/src/ic/stub-cache.h
+++ b/src/ic/stub-cache.h
@ -78,10 +78,15 @@ class V8_EXPORT_PRIVATE StubCache {

  Isolate* isolate() { return isolate_; }

-  // Setting the entry size such that the index is shifted by Name::kHashShift
-  // is convenient; shifting down the length field (to extract the hash code)
-  // automatically discards the hash bit field.
-  static const int kCacheIndexShift = Name::kHashShift;
+  // Ideally we would set kCacheIndexShift to Name::kHashShift, such that
+  // the bit field inside the hash field gets shifted out implicitly. However,
+  // sizeof(Entry) needs to be a multiple of 1 << kCacheIndexShift, and it
+  // isn't clear whether letting one bit of the bit field leak into the index
+  // computation is bad enough to warrant an additional shift to get rid of it.
+  static const int kCacheIndexShift = 2;
+  // The purpose of the static assert is to make us reconsider this choice
+  // if the bit field ever grows even more.
+  STATIC_ASSERT(kCacheIndexShift == Name::kHashShift - 1);

  static const int kPrimaryTableBits = 11;
  static const int kPrimaryTableSize = (1 << kPrimaryTableBits);
@ -125,7 +130,10 @@ class V8_EXPORT_PRIVATE StubCache {
  // of sizeof(Entry).  This makes it easier to avoid making mistakes
  // in the hashed offset computations.
  static Entry* entry(Entry* table, int offset) {
-    const int multiplier = sizeof(*table) >> Name::kHashShift;
+    // The size of {Entry} must be a multiple of 1 << kCacheIndexShift.
+    STATIC_ASSERT((sizeof(*table) >> kCacheIndexShift) << kCacheIndexShift ==
+                  sizeof(*table));
+    const int multiplier = sizeof(*table) >> kCacheIndexShift;
    return reinterpret_cast<Entry*>(reinterpret_cast<Address>(table) +
                                    offset * multiplier);
  }
--- a/src/objects/feedback-vector.h
+++ b/src/objects/feedback-vector.h
@ -567,7 +567,7 @@ class FeedbackMetadata : public HeapObject {
 // possibly be confused with a pointer.
 // NOLINTNEXTLINE(runtime/references) (false positive)
 STATIC_ASSERT((Name::kEmptyHashField & kHeapObjectTag) == kHeapObjectTag);
-STATIC_ASSERT(Name::kEmptyHashField == 0x3);
+STATIC_ASSERT(Name::kEmptyHashField == 0x7);
 // Verify that a set hash field will not look like a tagged object.
 STATIC_ASSERT(Name::kHashNotComputedMask == kHeapObjectTag);

--- a/src/objects/name-inl.h
+++ b/src/objects/name-inl.h
@ -100,6 +100,10 @@ bool Name::AsArrayIndex(uint32_t* index) {
  return IsString() && String::cast(*this).AsArrayIndex(index);
 }

+bool Name::AsIntegerIndex(size_t* index) {
+  return IsString() && String::cast(*this).AsIntegerIndex(index);
+}
+
 // static
 bool Name::ContainsCachedArrayIndex(uint32_t hash) {
  return (hash & Name::kDoesNotContainCachedArrayIndexMask) == 0;
--- a/src/objects/name.h
+++ b/src/objects/name.h
@ -32,6 +32,7 @@ class Name : public TorqueGeneratedName<Name, HeapObject> {

  // Conversion.
  inline bool AsArrayIndex(uint32_t* index);
+  inline bool AsIntegerIndex(size_t* index);

  // An "interesting symbol" is a well-known symbol, like @@toStringTag,
  // that's often looked up on random objects but is usually not present.
@ -73,7 +74,8 @@ class Name : public TorqueGeneratedName<Name, HeapObject> {
  // array index.
  static const int kHashNotComputedMask = 1;
  static const int kIsNotArrayIndexMask = 1 << 1;
-  static const int kNofHashBitFields = 2;
+  static const int kIsNotIntegerIndexMask = 1 << 2;
+  static const int kNofHashBitFields = 3;

  // Shift constant retrieving hash code from hash field.
  static const int kHashShift = kNofHashBitFields;
@ -88,6 +90,14 @@ class Name : public TorqueGeneratedName<Name, HeapObject> {
  // Maximum number of characters to consider when trying to convert a string
  // value into an array index.
  static const int kMaxArrayIndexSize = 10;
+  // Maximum number of characters that might be parsed into a size_t:
+  // 10 characters per 32 bits of size_t width.
+  // We choose this as large as possible (rather than MAX_SAFE_INTEGER range)
+  // because TypedArray accesses will treat all string keys that are
+  // canonical representations of numbers in the range [MAX_SAFE_INTEGER ..
+  // size_t::max] as out-of-bounds accesses, and we can handle those in the
+  // fast path if we tag them as such (see kIsNotIntegerIndexMask).
+  static const int kMaxIntegerIndexSize = 10 * (sizeof(size_t) / 4);

  // For strings which are array indexes the hash value has the string length
  // mixed into the hash, mainly to avoid a hash value of zero which would be
@ -120,7 +130,7 @@ class Name : public TorqueGeneratedName<Name, HeapObject> {

  // Value of empty hash field indicating that the hash is not computed.
  static const int kEmptyHashField =
-      kIsNotArrayIndexMask | kHashNotComputedMask;
+      kIsNotIntegerIndexMask | kIsNotArrayIndexMask | kHashNotComputedMask;

 protected:
  static inline bool IsHashFieldComputed(uint32_t field);
--- a/src/objects/objects.cc
+++ b/src/objects/objects.cc
@ -4505,6 +4505,7 @@ uint32_t StringHasher::MakeArrayIndexHash(uint32_t value, int length) {
  value |= length << String::ArrayIndexLengthBits::kShift;

  DCHECK_EQ(value & String::kIsNotArrayIndexMask, 0);
+  DCHECK_EQ(value & String::kIsNotIntegerIndexMask, 0);
  DCHECK_EQ(length <= String::kMaxCachedArrayIndexLength,
            Name::ContainsCachedArrayIndex(value));
  return value;
--- a/src/objects/string-inl.h
+++ b/src/objects/string-inl.h
@ -778,6 +778,14 @@ bool String::AsArrayIndex(uint32_t* index) {
  return SlowAsArrayIndex(index);
 }

+bool String::AsIntegerIndex(size_t* index) {
+  uint32_t field = hash_field();
+  if (IsHashFieldComputed(field) && (field & kIsNotIntegerIndexMask)) {
+    return false;
+  }
+  return SlowAsIntegerIndex(index);
+}
+
 SubStringRange::SubStringRange(String string,
                               const DisallowHeapAllocation& no_gc, int first,
                               int length)
--- a/src/objects/string.cc
+++ b/src/objects/string.cc
@ -1355,25 +1355,39 @@ uint32_t String::ComputeAndSetHash() {
  return result;
 }

-bool String::ComputeArrayIndex(uint32_t* index) {
+bool String::SlowAsArrayIndex(uint32_t* index) {
+  DisallowHeapAllocation no_gc;
  int length = this->length();
+  if (length <= kMaxCachedArrayIndexLength) {
+    Hash();  // Force computation of hash code.
+    uint32_t field = hash_field();
+    if ((field & kIsNotArrayIndexMask) != 0) return false;
+    *index = ArrayIndexValueBits::decode(field);
+    return true;
+  }
  if (length == 0 || length > kMaxArrayIndexSize) return false;
  StringCharacterStream stream(*this);
  return StringToArrayIndex(&stream, index);
 }

-bool String::SlowAsArrayIndex(uint32_t* index) {
+bool String::SlowAsIntegerIndex(size_t* index) {
  DisallowHeapAllocation no_gc;
-  if (length() <= kMaxCachedArrayIndexLength) {
-    Hash();  // force computation of hash code
+  int length = this->length();
+  if (length <= kMaxCachedArrayIndexLength) {
+    Hash();  // Force computation of hash code.
    uint32_t field = hash_field();
-    if ((field & kIsNotArrayIndexMask) != 0) return false;
-    // Isolate the array index form the full hash field.
+    if ((field & kIsNotArrayIndexMask) != 0) {
+      // If it was short but it's not an array index, then it can't be an
+      // integer index either.
+      DCHECK_NE(0, field & kIsNotIntegerIndexMask);
+      return false;
+    }
    *index = ArrayIndexValueBits::decode(field);
    return true;
-  } else {
-    return ComputeArrayIndex(index);
  }
+  if (length == 0 || length > kMaxIntegerIndexSize) return false;
+  StringCharacterStream stream(*this);
+  return StringToArrayIndex(&stream, index);
 }

 void String::PrintOn(FILE* file) {
--- a/src/objects/string.h
+++ b/src/objects/string.h
@ -308,8 +308,6 @@ class String : public TorqueGeneratedString<String, Name> {
      RobustnessFlag robustness_flag = FAST_STRING_TRAVERSAL,
      int* length_output = nullptr);

-  bool ComputeArrayIndex(uint32_t* index);
-
  // Externalization.
  V8_EXPORT_PRIVATE bool MakeExternal(
      v8::String::ExternalStringResource* resource);
@ -318,8 +316,12 @@ class String : public TorqueGeneratedString<String, Name> {
  bool SupportsExternalization();

  // Conversion.
+  // "array index": an index allowed by the ES spec for JSArrays.
  inline bool AsArrayIndex(uint32_t* index);
  uint32_t inline ToValidIndex(Object number);
+  // "integer index": the string is the decimal representation of an
+  // integer in the range of a size_t. Useful for TypedArray accesses.
+  inline bool AsIntegerIndex(size_t* index);

  // Trimming.
  enum TrimMode { kTrim, kTrimStart, kTrimEnd };
@ -450,6 +452,7 @@ class String : public TorqueGeneratedString<String, Name> {

  // Slow case of AsArrayIndex.
  V8_EXPORT_PRIVATE bool SlowAsArrayIndex(uint32_t* index);
+  V8_EXPORT_PRIVATE bool SlowAsIntegerIndex(size_t* index);

  // Compute and set the hash code.
  V8_EXPORT_PRIVATE uint32_t ComputeAndSetHash();
--- a/src/strings/string-hasher-inl.h
+++ b/src/strings/string-hasher-inl.h
@ -34,32 +34,63 @@ uint32_t StringHasher::GetHashCore(uint32_t running_hash) {
 uint32_t StringHasher::GetTrivialHash(int length) {
  DCHECK_GT(length, String::kMaxHashCalcLength);
  // String hash of a large string is simply the length.
-  return (length << String::kHashShift) | String::kIsNotArrayIndexMask;
+  return (length << String::kHashShift) | String::kIsNotArrayIndexMask |
+         String::kIsNotIntegerIndexMask;
 }

 template <typename schar>
 uint32_t StringHasher::HashSequentialString(const schar* chars, int length,
                                            uint64_t seed) {
-  // Check whether the string is a valid array index. In that case, compute the
-  // array index hash. It'll fall through to compute a regular string hash from
-  // the start if it turns out that the string isn't a valid array index.
-  if (IsInRange(length, 1, String::kMaxArrayIndexSize)) {
-    if (IsDecimalDigit(chars[0]) && (length == 1 || chars[0] != '0')) {
-      uint32_t index = chars[0] - '0';
-      int i = 1;
-      do {
-        if (i == length) {
-          return MakeArrayIndexHash(index, length);
-        }
-      } while (TryAddIndexChar(&index, chars[i++]));
-    }
-  } else if (length > String::kMaxHashCalcLength) {
-    return GetTrivialHash(length);
-  }
-
-  // Non-array-index hash.
  DCHECK_LE(0, length);
  DCHECK_IMPLIES(0 < length, chars != nullptr);
+  if (length >= 1) {
+    if (IsDecimalDigit(chars[0]) && (length == 1 || chars[0] != '0')) {
+      uint32_t index = 0;
+      if (length <= String::kMaxArrayIndexSize) {
+        // Possible array index; try to compute the array index hash.
+        index = chars[0] - '0';
+        int i = 1;
+        do {
+          if (i == length) {
+            return MakeArrayIndexHash(index, length);
+          }
+        } while (TryAddIndexChar(&index, chars[i++]));
+      }
+      // The following block wouldn't do anything on 32-bit platforms,
+      // because kMaxArrayIndexSize == kMaxIntegerIndexSize there, and
+      // if we wanted to compile it everywhere, then {index_big} would
+      // have to be a {size_t}, which the Mac compiler doesn't like to
+      // implicitly cast to uint64_t for the {TryAddIndexChar} call.
+#if V8_HOST_ARCH_64_BIT
+      // No "else" here: if the block above was entered and fell through,
+      // we'll have to take this branch.
+      if (length <= String::kMaxIntegerIndexSize) {
+        // Not an array index, but it could still be an integer index.
+        // Perform a regular hash computation, and additionally check
+        // if there are non-digit characters.
+        uint32_t is_integer_index = 0;
+        uint32_t running_hash = static_cast<uint32_t>(seed);
+        uint64_t index_big = index;
+        const schar* end = &chars[length];
+        while (chars != end) {
+          if (is_integer_index == 0 && !TryAddIndexChar(&index_big, *chars)) {
+            is_integer_index = String::kIsNotIntegerIndexMask;
+          }
+          running_hash = AddCharacterCore(running_hash, *chars++);
+        }
+        return (GetHashCore(running_hash) << String::kHashShift) |
+               String::kIsNotArrayIndexMask | is_integer_index;
+      }
+#endif
+    }
+    // No "else" here: if the first character was a decimal digit, we might
+    // still have to take this branch.
+    if (length > String::kMaxHashCalcLength) {
+      return GetTrivialHash(length);
+    }
+  }
+
+  // Non-index hash.
  uint32_t running_hash = static_cast<uint32_t>(seed);
  const schar* end = &chars[length];
  while (chars != end) {
@ -67,7 +98,7 @@ uint32_t StringHasher::HashSequentialString(const schar* chars, int length,
  }

  return (GetHashCore(running_hash) << String::kHashShift) |
-         String::kIsNotArrayIndexMask;
+         String::kIsNotArrayIndexMask | String::kIsNotIntegerIndexMask;
 }

 std::size_t SeededStringHasher::operator()(const char* name) const {
--- a/src/utils/utils-inl.h
+++ b/src/utils/utils-inl.h
@ -36,13 +36,30 @@ template <typename Char>
 bool TryAddIndexChar(uint32_t* index, Char c) {
  if (!IsDecimalDigit(c)) return false;
  int d = c - '0';
+  // The maximum index is 4294967294; for the computation below to not
+  // exceed that, the previous index value must be <= 429496729 if d <= 4,
+  // or <= 429496728 if d >= 5. The (d+3)>>3 computation is a branch-free
+  // way to express that.
  if (*index > 429496729U - ((d + 3) >> 3)) return false;
  *index = (*index) * 10 + d;
  return true;
 }

-template <typename Stream>
-bool StringToArrayIndex(Stream* stream, uint32_t* index) {
+template <typename Char>
+bool TryAddIndexChar(uint64_t* index, Char c) {
+  if (!IsDecimalDigit(c)) return false;
+  int d = c - '0';
+  // The maximum uint64_t is 18446744073709551615; for the computation below to
+  // not exceed that, the previous index value must be <= 1844674407370955161
+  // if d <= 5, or <= 1844674407370955160 if d >= 6. The (d+2)>>3 computation
+  // is a branch-free way to express that.
+  if (*index > 1844674407370955161ull - ((d + 2) >> 3)) return false;
+  *index = (*index) * 10 + d;
+  return true;
+}
+
+template <typename Stream, typename index_t>
+bool StringToArrayIndex(Stream* stream, index_t* index) {
  uint16_t ch = stream->GetNext();

  // If the string begins with a '0' character, it must only consist
@ -55,9 +72,20 @@ bool StringToArrayIndex(Stream* stream, uint32_t* index) {
  // Convert string to uint32 array index; character by character.
  if (!IsDecimalDigit(ch)) return false;
  int d = ch - '0';
-  uint32_t result = d;
+  index_t result = d;
  while (stream->HasMore()) {
-    if (!TryAddIndexChar(&result, stream->GetNext())) return false;
+    // Clang on Mac doesn't think that size_t and uint*_t should be
+    // implicitly convertible.
+    if (sizeof(index_t) == 8) {
+      if (!TryAddIndexChar(reinterpret_cast<uint64_t*>(&result),
+                           stream->GetNext())) {
+        return false;
+      }
+    } else {
+      if (!TryAddIndexChar(reinterpret_cast<uint32_t*>(&result),
+                           stream->GetNext()))
+        return false;
+    }
  }

  *index = result;
--- a/src/utils/utils.h
+++ b/src/utils/utils.h
@ -973,8 +973,8 @@ bool DoubleToBoolean(double d);
 template <typename Char>
 bool TryAddIndexChar(uint32_t* index, Char c);

-template <typename Stream>
-bool StringToArrayIndex(Stream* stream, uint32_t* index);
+template <typename Stream, typename index_t>
+bool StringToArrayIndex(Stream* stream, index_t* index);

 // Returns the current stack top. Works correctly with ASAN and SafeStack.
 // GetCurrentStackPosition() should not be inlined, because it works on stack
--- a/test/cctest/test-strings.cc
+++ b/test/cctest/test-strings.cc
@ -1857,6 +1857,48 @@ GC_INSIDE_NEW_STRING_FROM_UTF8_SUB_STRING(

 #undef GC_INSIDE_NEW_STRING_FROM_UTF8_SUB_STRING

+namespace {
+
+struct IndexData {
+  const char* string;
+  bool is_array_index;
+  uint32_t array_index;
+  bool is_integer_index;
+  size_t integer_index;
+};
+
+void TestString(i::Isolate* isolate, const IndexData& data) {
+  Handle<String> s = isolate->factory()->NewStringFromAsciiChecked(data.string);
+  if (data.is_array_index) {
+    uint32_t index;
+    CHECK(s->AsArrayIndex(&index));
+    CHECK_EQ(data.array_index, index);
+    // AsArrayIndex only forces hash computation for cacheable indices;
+    // so trigger hash computation for longer strings manually.
+    if (s->length() > String::kMaxCachedArrayIndexLength) s->Hash();
+    CHECK_EQ(0, s->hash_field() & String::kIsNotArrayIndexMask);
+    CHECK(s->HasHashCode());
+  }
+  if (data.is_integer_index) {
+    size_t index;
+    CHECK(s->AsIntegerIndex(&index));
+    CHECK_EQ(data.integer_index, index);
+    s->Hash();
+    CHECK_EQ(0, s->hash_field() & String::kIsNotIntegerIndexMask);
+    CHECK(s->HasHashCode());
+  }
+  if (!s->HasHashCode()) s->Hash();
+  CHECK(s->HasHashCode());
+  if (!data.is_array_index) {
+    CHECK_NE(0, s->hash_field() & String::kIsNotArrayIndexMask);
+  }
+  if (!data.is_integer_index) {
+    CHECK_NE(0, s->hash_field() & String::kIsNotIntegerIndexMask);
+  }
+}
+
+}  // namespace
+
 TEST(HashArrayIndexStrings) {
  CcTest::InitializeVM();
  LocalContext context;
@ -1870,6 +1912,27 @@ TEST(HashArrayIndexStrings) {
  CHECK_EQ(StringHasher::MakeArrayIndexHash(1 /* value */, 1 /* length */) >>
               Name::kHashShift,
           isolate->factory()->one_string()->Hash());
+
+  IndexData tests[] = {
+    {"", false, 0, false, 0},
+    {"123no", false, 0, false, 0},
+    {"12345", true, 12345, true, 12345},
+    {"12345678", true, 12345678, true, 12345678},
+    {"4294967294", true, 4294967294u, true, 4294967294u},
+#if V8_TARGET_ARCH_32_BIT
+    {"4294967295", false, 0, false, 0},  // Valid length but not index.
+    {"4294967296", false, 0, false, 0},
+    {"18446744073709551615", false, 0, false, 0},
+#else
+    {"4294967295", false, 0, true, 4294967295u},
+    {"4294967296", false, 0, true, 4294967296ull},
+    {"18446744073709551615", false, 0, true, 18446744073709551615ull},
+#endif
+    {"18446744073709551616", false, 0, false, 0}
+  };
+  for (int i = 0, n = arraysize(tests); i < n; i++) {
+    TestString(isolate, tests[i]);
+  }
 }

 TEST(StringEquals) {
--- a/test/inspector/debugger/wasm-clone-module-expected.txt
+++ b/test/inspector/debugger/wasm-clone-module-expected.txt
@ -1,5 +1,5 @@
 Tests that cloning a module notifies the debugger
-Got URL: wasm://wasm/wasm-cae8f226/wasm-cae8f226-0
-Got URL: wasm://wasm/wasm-cae8f226/wasm-cae8f226-0
-Got URL: wasm://wasm/wasm-cae8f226/wasm-cae8f226-0
+Got URL: wasm://wasm/wasm-95d1e44e/wasm-95d1e44e-0
+Got URL: wasm://wasm/wasm-95d1e44e/wasm-95d1e44e-0
+Got URL: wasm://wasm/wasm-95d1e44e/wasm-95d1e44e-0
 Done!
--- a/test/inspector/debugger/wasm-get-breakable-locations-expected.txt
+++ b/test/inspector/debugger/wasm-get-breakable-locations-expected.txt
@ -2,9 +2,9 @@ Tests breakable locations in wasm
 Running testFunction...
 Script nr 0 parsed. URL: v8://test/setup
 Script nr 1 parsed. URL: v8://test/runTestFunction
-Script nr 2 parsed. URL: wasm://wasm/wasm-354ada0e/wasm-354ada0e-0
+Script nr 2 parsed. URL: wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-0
 This is a wasm script (nr 0).
-Script nr 3 parsed. URL: wasm://wasm/wasm-354ada0e/wasm-354ada0e-1
+Script nr 3 parsed. URL: wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1
 This is a wasm script (nr 1).
 Querying breakable locations for all wasm scripts now...
 Requesting all breakable locations in wasm script 0
@ -38,51 +38,51 @@ Requesting breakable locations in lines [4,6)
 [0] 4:6 ||       >call 0
 [1] 5:4 ||     >end
 Setting a breakpoint on each breakable location...
-Setting at wasm://wasm/wasm-354ada0e/wasm-354ada0e-0:2:2
+Setting at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-0:2:2
 Success!
-Setting at wasm://wasm/wasm-354ada0e/wasm-354ada0e-0:3:2
+Setting at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-0:3:2
 Success!
-Setting at wasm://wasm/wasm-354ada0e/wasm-354ada0e-0:4:2
+Setting at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-0:4:2
 Success!
-Setting at wasm://wasm/wasm-354ada0e/wasm-354ada0e-0:5:0
+Setting at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-0:5:0
 Success!
-Setting at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:1:2
+Setting at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:1:2
 Success!
-Setting at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:2:2
+Setting at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:2:2
 Success!
-Setting at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:3:4
+Setting at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:3:4
 Success!
-Setting at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:4:6
+Setting at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:4:6
 Success!
-Setting at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:5:4
+Setting at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:5:4
 Success!
-Setting at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:6:2
+Setting at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:6:2
 Success!
-Setting at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:7:0
+Setting at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:7:0
 Success!
 Running wasm code...
 Missing breakpoints: 11
 Script nr 4 parsed. URL: v8://test/runWasm
-Stopped at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:1:2
+Stopped at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:1:2
 Missing breakpoints: 10
-Stopped at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:2:2
+Stopped at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:2:2
 Missing breakpoints: 9
-Stopped at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:3:4
+Stopped at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:3:4
 Missing breakpoints: 8
-Stopped at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:4:6
+Stopped at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:4:6
 Missing breakpoints: 7
-Stopped at wasm://wasm/wasm-354ada0e/wasm-354ada0e-0:2:2
+Stopped at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-0:2:2
 Missing breakpoints: 6
-Stopped at wasm://wasm/wasm-354ada0e/wasm-354ada0e-0:3:2
+Stopped at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-0:3:2
 Missing breakpoints: 5
-Stopped at wasm://wasm/wasm-354ada0e/wasm-354ada0e-0:4:2
+Stopped at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-0:4:2
 Missing breakpoints: 4
-Stopped at wasm://wasm/wasm-354ada0e/wasm-354ada0e-0:5:0
+Stopped at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-0:5:0
 Missing breakpoints: 3
-Stopped at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:5:4
+Stopped at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:5:4
 Missing breakpoints: 2
-Stopped at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:6:2
+Stopped at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:6:2
 Missing breakpoints: 1
-Stopped at wasm://wasm/wasm-354ada0e/wasm-354ada0e-1:7:0
+Stopped at wasm://wasm/wasm-6a95b41e/wasm-6a95b41e-1:7:0
 Missing breakpoints: 0
 Finished!
--- a/test/inspector/debugger/wasm-scripts-expected.txt
+++ b/test/inspector/debugger/wasm-scripts-expected.txt
@ -1,17 +1,17 @@
 Tests how wasm scripts are reported
 Check that each inspector gets two wasm scripts at module creation time.
-Session #1: Script #0 parsed. URL: wasm://wasm/wasm-7b04570e/wasm-7b04570e-0. Source map URL:
-Session #1: Script #1 parsed. URL: wasm://wasm/wasm-7b04570e/wasm-7b04570e-1. Source map URL:
-Session #2: Script #0 parsed. URL: wasm://wasm/wasm-7b04570e/wasm-7b04570e-0. Source map URL:
-Session #2: Script #1 parsed. URL: wasm://wasm/wasm-7b04570e/wasm-7b04570e-1. Source map URL:
-Session #1: Script #2 parsed. URL: wasm://wasm/wasm-77a937ae. Source map URL: wasm://dwarf
-Session #2: Script #2 parsed. URL: wasm://wasm/wasm-77a937ae. Source map URL: wasm://dwarf
-Session #1: Source for wasm://wasm/wasm-7b04570e/wasm-7b04570e-0:
+Session #1: Script #0 parsed. URL: wasm://wasm/wasm-f608ae1e/wasm-f608ae1e-0. Source map URL:
+Session #1: Script #1 parsed. URL: wasm://wasm/wasm-f608ae1e/wasm-f608ae1e-1. Source map URL:
+Session #2: Script #0 parsed. URL: wasm://wasm/wasm-f608ae1e/wasm-f608ae1e-0. Source map URL:
+Session #2: Script #1 parsed. URL: wasm://wasm/wasm-f608ae1e/wasm-f608ae1e-1. Source map URL:
+Session #1: Script #2 parsed. URL: wasm://wasm/wasm-ef526f5e. Source map URL: wasm://dwarf
+Session #2: Script #2 parsed. URL: wasm://wasm/wasm-ef526f5e. Source map URL: wasm://dwarf
+Session #1: Source for wasm://wasm/wasm-f608ae1e/wasm-f608ae1e-0:
 func $nopFunction
  nop
 end

-Session #1: Source for wasm://wasm/wasm-7b04570e/wasm-7b04570e-1:
+Session #1: Source for wasm://wasm/wasm-f608ae1e/wasm-f608ae1e-1:
 func $main
  block
    i32.const 2
@ -19,12 +19,12 @@ func $main
  end
 end

-Session #2: Source for wasm://wasm/wasm-7b04570e/wasm-7b04570e-0:
+Session #2: Source for wasm://wasm/wasm-f608ae1e/wasm-f608ae1e-0:
 func $nopFunction
  nop
 end

-Session #2: Source for wasm://wasm/wasm-7b04570e/wasm-7b04570e-1:
+Session #2: Source for wasm://wasm/wasm-f608ae1e/wasm-f608ae1e-1:
 func $main
  block
    i32.const 2
@ -32,11 +32,11 @@ func $main
  end
 end

-Session #1: Source for wasm://wasm/wasm-77a937ae:
+Session #1: Source for wasm://wasm/wasm-ef526f5e:
 Raw: 00 61 73 6d 01 00 00 00 01 07 02 60 00 00 60 00 00 03 03 02 00 01 07 08 01 04 6d 61 69 6e 00 01 0a 0e 02 03 00 01 0b 08 00 02 40 41 02 1a 0b 0b 00 0c 0b 2e 64 65 62 75 67 5f 69 6e 66 6f 00 1b 04 6e 61 6d 65 01 14 02 00 0b 6e 6f 70 46 75 6e 63 74 69 6f 6e 01 04 6d 61 69 6e
 Imports: []
 Exports: [main: function]
-Session #2: Source for wasm://wasm/wasm-77a937ae:
+Session #2: Source for wasm://wasm/wasm-ef526f5e:
 Raw: 00 61 73 6d 01 00 00 00 01 07 02 60 00 00 60 00 00 03 03 02 00 01 07 08 01 04 6d 61 69 6e 00 01 0a 0e 02 03 00 01 0b 08 00 02 40 41 02 1a 0b 0b 00 0c 0b 2e 64 65 62 75 67 5f 69 6e 66 6f 00 1b 04 6e 61 6d 65 01 14 02 00 0b 6e 6f 70 46 75 6e 63 74 69 6f 6e 01 04 6d 61 69 6e
 Imports: []
 Exports: [main: function]
--- a/test/inspector/debugger/wasm-set-breakpoint-expected.txt
+++ b/test/inspector/debugger/wasm-set-breakpoint-expected.txt
@ -1,13 +1,13 @@
 Tests stepping through wasm scripts.
 Instantiating.
 Waiting for two wasm scripts (ignoring first non-wasm script).
-Source of script wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-0:
+Source of script wasm://wasm/wasm-18214bfe/wasm-18214bfe-0:
 1: func $wasm_A
 2:   nop
 3:   nop
 4: end

-Source of script wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:
+Source of script wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:
 1: func $wasm_B (param i32)
 2:   loop
 3:     local.get 0
@ -22,12 +22,12 @@ Source of script wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:
 12:   end
 13: end

-Setting breakpoint on line 8 on script wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1
-Setting breakpoint on line 7 on script wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1
-Setting breakpoint on line 6 on script wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1
-Setting breakpoint on line 5 on script wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1
-Setting breakpoint on line 3 on script wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1
-Setting breakpoint on line 4 on script wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1
+Setting breakpoint on line 8 on script wasm://wasm/wasm-18214bfe/wasm-18214bfe-1
+Setting breakpoint on line 7 on script wasm://wasm/wasm-18214bfe/wasm-18214bfe-1
+Setting breakpoint on line 6 on script wasm://wasm/wasm-18214bfe/wasm-18214bfe-1
+Setting breakpoint on line 5 on script wasm://wasm/wasm-18214bfe/wasm-18214bfe-1
+Setting breakpoint on line 3 on script wasm://wasm/wasm-18214bfe/wasm-18214bfe-1
+Setting breakpoint on line 4 on script wasm://wasm/wasm-18214bfe/wasm-18214bfe-1
 Calling main(4)
 Breaking on line 3
 Breaking on line 4
--- a/test/inspector/debugger/wasm-stepping-expected.txt
+++ b/test/inspector/debugger/wasm-stepping-expected.txt
@ -3,10 +3,10 @@ Installing code an global variable.
 Calling instantiate function.
 Waiting for two wasm scripts to be parsed.
 Ignoring script with url v8://test/callInstantiate
-Got wasm script: wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-0
-Requesting source for wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-0...
-Got wasm script: wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1
-Requesting source for wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1...
+Got wasm script: wasm://wasm/wasm-18214bfe/wasm-18214bfe-0
+Requesting source for wasm://wasm/wasm-18214bfe/wasm-18214bfe-0...
+Got wasm script: wasm://wasm/wasm-18214bfe/wasm-18214bfe-1
+Requesting source for wasm://wasm/wasm-18214bfe/wasm-18214bfe-1...
 func $wasm_A
  nop
  nop
@ -26,13 +26,13 @@ func $wasm_B (param i32)
  end
 end

-Setting breakpoint on line 7 (on the setlocal before the call), url wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1
+Setting breakpoint on line 7 (on the setlocal before the call), url wasm://wasm/wasm-18214bfe/wasm-18214bfe-1
 {
    columnNumber : 6
    lineNumber : 7
    scriptId : <scriptId>
 }
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:7:6:       >local.set 0
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:7:6:       >local.set 0
 at wasm_B (7:6):
 - scope (global):
   -- skipped
@ -43,7 +43,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:8:6:       >call 0
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:8:6:       >call 0
 at wasm_B (8:6):
 - scope (global):
   -- skipped
@ -54,7 +54,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-0:1:2:   >nop
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-0:1:2:   >nop
 at wasm_A (1:2):
 - scope (global):
   -- skipped
@ -70,7 +70,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOver called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-0:2:2:   >nop
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-0:2:2:   >nop
 at wasm_A (2:2):
 - scope (global):
   -- skipped
@ -86,7 +86,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOut called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:9:6:       >br 1
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:9:6:       >br 1
 at wasm_B (9:6):
 - scope (global):
   -- skipped
@ -97,7 +97,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOut called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:7:6:       >local.set 0
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:7:6:       >local.set 0
 at wasm_B (7:6):
 - scope (global):
   -- skipped
@ -108,7 +108,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOver called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:8:6:       >call 0
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:8:6:       >call 0
 at wasm_B (8:6):
 - scope (global):
   -- skipped
@ -119,7 +119,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOver called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:9:6:       >br 1
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:9:6:       >br 1
 at wasm_B (9:6):
 - scope (global):
   -- skipped
@ -130,7 +130,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.resume called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:7:6:       >local.set 0
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:7:6:       >local.set 0
 at wasm_B (7:6):
 - scope (global):
   -- skipped
@ -141,7 +141,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:8:6:       >call 0
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:8:6:       >call 0
 at wasm_B (8:6):
 - scope (global):
   -- skipped
@ -152,7 +152,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-0:1:2:   >nop
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-0:1:2:   >nop
 at wasm_A (1:2):
 - scope (global):
   -- skipped
@ -168,7 +168,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOut called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:9:6:       >br 1
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:9:6:       >br 1
 at wasm_B (9:6):
 - scope (global):
   -- skipped
@ -179,7 +179,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:1:2:   >loop
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:1:2:   >loop
 at wasm_B (1:2):
 - scope (global):
   -- skipped
@ -190,7 +190,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:2:4:     >local.get 0
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:2:4:     >local.get 0
 at wasm_B (2:4):
 - scope (global):
   -- skipped
@ -201,7 +201,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:3:4:     >if
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:3:4:     >if
 at wasm_B (3:4):
 - scope (global):
   -- skipped
@ -212,7 +212,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:4:6:       >local.get 0
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:4:6:       >local.get 0
 at wasm_B (4:6):
 - scope (global):
   -- skipped
@ -223,7 +223,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:5:6:       >i32.const 1
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:5:6:       >i32.const 1
 at wasm_B (5:6):
 - scope (global):
   -- skipped
@ -234,7 +234,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:6:6:       >i32.sub
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:6:6:       >i32.sub
 at wasm_B (6:6):
 - scope (global):
   -- skipped
@ -245,7 +245,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:7:6:       >local.set 0
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:7:6:       >local.set 0
 at wasm_B (7:6):
 - scope (global):
   -- skipped
@ -256,7 +256,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:8:6:       >call 0
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:8:6:       >call 0
 at wasm_B (8:6):
 - scope (global):
   -- skipped
@ -267,7 +267,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-0:1:2:   >nop
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-0:1:2:   >nop
 at wasm_A (1:2):
 - scope (global):
   -- skipped
@ -283,7 +283,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-0:2:2:   >nop
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-0:2:2:   >nop
 at wasm_A (2:2):
 - scope (global):
   -- skipped
@ -299,7 +299,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-0:3:0: >end
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-0:3:0: >end
 at wasm_A (3:0):
 - scope (global):
   -- skipped
@ -315,7 +315,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-0c10a5fe/wasm-0c10a5fe-1:9:6:       >br 1
+Paused at wasm://wasm/wasm-18214bfe/wasm-18214bfe-1:9:6:       >br 1
 at wasm_B (9:6):
 - scope (global):
   -- skipped
--- a/test/inspector/debugger/wasm-stepping-with-source-map-expected.txt
+++ b/test/inspector/debugger/wasm-stepping-with-source-map-expected.txt
@ -1,16 +1,16 @@
 Tests stepping through wasm scripts with source maps
 Installing code an global variable and instantiate.
-Got wasm script: wasm://wasm/wasm-9b4bf87e
+Got wasm script: wasm://wasm/wasm-3697f0fe
 Script sourceMapURL: abc
-Requesting source for wasm://wasm/wasm-9b4bf87e...
+Requesting source for wasm://wasm/wasm-3697f0fe...
 Source retrieved without error: true
-Setting breakpoint on offset 54 (on the setlocal before the call), url wasm://wasm/wasm-9b4bf87e
+Setting breakpoint on offset 54 (on the setlocal before the call), url wasm://wasm/wasm-3697f0fe
 {
    columnNumber : 54
    lineNumber : 0
    scriptId : <scriptId>
 }
-Paused at wasm://wasm/wasm-9b4bf87e:0:54
+Paused at wasm://wasm/wasm-3697f0fe:0:54
 at wasm_B (0:54):
 - scope (global):
   -- skipped
@ -21,7 +21,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:56
+Paused at wasm://wasm/wasm-3697f0fe:0:56
 at wasm_B (0:56):
 - scope (global):
   -- skipped
@ -32,7 +32,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:38
+Paused at wasm://wasm/wasm-3697f0fe:0:38
 at wasm_A (0:38):
 - scope (global):
   -- skipped
@ -48,7 +48,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOver called
-Paused at wasm://wasm/wasm-9b4bf87e:0:39
+Paused at wasm://wasm/wasm-3697f0fe:0:39
 at wasm_A (0:39):
 - scope (global):
   -- skipped
@ -64,7 +64,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOut called
-Paused at wasm://wasm/wasm-9b4bf87e:0:58
+Paused at wasm://wasm/wasm-3697f0fe:0:58
 at wasm_B (0:58):
 - scope (global):
   -- skipped
@ -75,7 +75,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOut called
-Paused at wasm://wasm/wasm-9b4bf87e:0:54
+Paused at wasm://wasm/wasm-3697f0fe:0:54
 at wasm_B (0:54):
 - scope (global):
   -- skipped
@ -86,7 +86,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOver called
-Paused at wasm://wasm/wasm-9b4bf87e:0:56
+Paused at wasm://wasm/wasm-3697f0fe:0:56
 at wasm_B (0:56):
 - scope (global):
   -- skipped
@ -97,7 +97,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOver called
-Paused at wasm://wasm/wasm-9b4bf87e:0:58
+Paused at wasm://wasm/wasm-3697f0fe:0:58
 at wasm_B (0:58):
 - scope (global):
   -- skipped
@ -108,7 +108,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.resume called
-Paused at wasm://wasm/wasm-9b4bf87e:0:54
+Paused at wasm://wasm/wasm-3697f0fe:0:54
 at wasm_B (0:54):
 - scope (global):
   -- skipped
@ -119,7 +119,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:56
+Paused at wasm://wasm/wasm-3697f0fe:0:56
 at wasm_B (0:56):
 - scope (global):
   -- skipped
@ -130,7 +130,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:38
+Paused at wasm://wasm/wasm-3697f0fe:0:38
 at wasm_A (0:38):
 - scope (global):
   -- skipped
@ -146,7 +146,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepOut called
-Paused at wasm://wasm/wasm-9b4bf87e:0:58
+Paused at wasm://wasm/wasm-3697f0fe:0:58
 at wasm_B (0:58):
 - scope (global):
   -- skipped
@ -157,7 +157,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:43
+Paused at wasm://wasm/wasm-3697f0fe:0:43
 at wasm_B (0:43):
 - scope (global):
   -- skipped
@ -168,7 +168,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:45
+Paused at wasm://wasm/wasm-3697f0fe:0:45
 at wasm_B (0:45):
 - scope (global):
   -- skipped
@ -179,7 +179,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:47
+Paused at wasm://wasm/wasm-3697f0fe:0:47
 at wasm_B (0:47):
 - scope (global):
   -- skipped
@ -190,7 +190,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:49
+Paused at wasm://wasm/wasm-3697f0fe:0:49
 at wasm_B (0:49):
 - scope (global):
   -- skipped
@ -201,7 +201,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:51
+Paused at wasm://wasm/wasm-3697f0fe:0:51
 at wasm_B (0:51):
 - scope (global):
   -- skipped
@ -212,7 +212,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:53
+Paused at wasm://wasm/wasm-3697f0fe:0:53
 at wasm_B (0:53):
 - scope (global):
   -- skipped
@ -223,7 +223,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:54
+Paused at wasm://wasm/wasm-3697f0fe:0:54
 at wasm_B (0:54):
 - scope (global):
   -- skipped
@ -234,7 +234,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:56
+Paused at wasm://wasm/wasm-3697f0fe:0:56
 at wasm_B (0:56):
 - scope (global):
   -- skipped
@ -245,7 +245,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:38
+Paused at wasm://wasm/wasm-3697f0fe:0:38
 at wasm_A (0:38):
 - scope (global):
   -- skipped
@ -261,7 +261,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:39
+Paused at wasm://wasm/wasm-3697f0fe:0:39
 at wasm_A (0:39):
 - scope (global):
   -- skipped
@ -277,7 +277,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:40
+Paused at wasm://wasm/wasm-3697f0fe:0:40
 at wasm_A (0:40):
 - scope (global):
   -- skipped
@ -293,7 +293,7 @@ at (anonymous) (0:17):
 - scope (global):
   -- skipped
 Debugger.stepInto called
-Paused at wasm://wasm/wasm-9b4bf87e:0:58
+Paused at wasm://wasm/wasm-3697f0fe:0:58
 at wasm_B (0:58):
 - scope (global):
   -- skipped