Make type bitsets explicitly unsigned

src/types.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_TYPES_H_
 #define V8_TYPES_H_
 
 #include "src/factory.h"
 #include "src/handles.h"
 #include "src/ostreams.h"
@@ skipping 129 matching lines @@
 
 #define MASK_BITSET_TYPE_LIST(V) \
   V(Representation, 0xff800000u) \
   V(Semantic,       0x007ffffeu)
 
 #define REPRESENTATION(k) ((k) & BitsetType::kRepresentation)
 #define SEMANTIC(k)       ((k) & BitsetType::kSemantic)
 
 #define REPRESENTATION_BITSET_TYPE_LIST(V) \
   V(None,             0)                   \
-  V(UntaggedInt1,     1 << 23 | kSemantic) \
-  V(UntaggedInt8,     1 << 24 | kSemantic) \
-  V(UntaggedInt16,    1 << 25 | kSemantic) \
-  V(UntaggedInt32,    1 << 26 | kSemantic) \
-  V(UntaggedFloat32,  1 << 27 | kSemantic) \
-  V(UntaggedFloat64,  1 << 28 | kSemantic) \
-  V(UntaggedPtr,      1 << 29 | kSemantic) \
-  V(TaggedInt,        1 << 30 | kSemantic) \
-  V(TaggedPtr,        1 << 31 | kSemantic) \
+  V(UntaggedInt1,     1u << 23 | kSemantic) \
+  V(UntaggedInt8,     1u << 24 | kSemantic) \
+  V(UntaggedInt16,    1u << 25 | kSemantic) \
+  V(UntaggedInt32,    1u << 26 | kSemantic) \
+  V(UntaggedFloat32,  1u << 27 | kSemantic) \
+  V(UntaggedFloat64,  1u << 28 | kSemantic) \
+  V(UntaggedPtr,      1u << 29 | kSemantic) \
+  V(TaggedInt,        1u << 30 | kSemantic) \
+  V(TaggedPtr,        1u << 31 | kSemantic) \
   \
   V(UntaggedInt,      kUntaggedInt1 | kUntaggedInt8 |      \
                       kUntaggedInt16 | kUntaggedInt32)     \
   V(UntaggedFloat,    kUntaggedFloat32 | kUntaggedFloat64) \
   V(UntaggedNumber,   kUntaggedInt | kUntaggedFloat)       \
   V(Untagged,         kUntaggedNumber | kUntaggedPtr)      \
   V(Tagged,           kTaggedInt | kTaggedPtr)
 
 #define SEMANTIC_BITSET_TYPE_LIST(V) \
-  V(Null,                1 << 1  | REPRESENTATION(kTaggedPtr)) \
-  V(Undefined,           1 << 2  | REPRESENTATION(kTaggedPtr)) \
-  V(Boolean,             1 << 3  | REPRESENTATION(kTaggedPtr)) \
-  V(UnsignedSmall,       1 << 4  | REPRESENTATION(kTagged | kUntaggedNumber)) \
-  V(OtherSignedSmall,    1 << 5  | REPRESENTATION(kTagged | kUntaggedNumber)) \
-  V(OtherUnsigned31,     1 << 6  | REPRESENTATION(kTagged | kUntaggedNumber)) \
-  V(OtherUnsigned32,     1 << 7  | REPRESENTATION(kTagged | kUntaggedNumber)) \
-  V(OtherSigned32,       1 << 8  | REPRESENTATION(kTagged | kUntaggedNumber)) \
-  V(MinusZero,           1 << 9  | REPRESENTATION(kTagged | kUntaggedNumber)) \
-  V(NaN,                 1 << 10 | REPRESENTATION(kTagged | kUntaggedNumber)) \
-  V(OtherNumber,         1 << 11 | REPRESENTATION(kTagged | kUntaggedNumber)) \
-  V(Symbol,              1 << 12 | REPRESENTATION(kTaggedPtr)) \
-  V(InternalizedString,  1 << 13 | REPRESENTATION(kTaggedPtr)) \
-  V(OtherString,         1 << 14 | REPRESENTATION(kTaggedPtr)) \
-  V(Undetectable,        1 << 15 | REPRESENTATION(kTaggedPtr)) \
-  V(Array,               1 << 16 | REPRESENTATION(kTaggedPtr)) \
-  V(Buffer,              1 << 17 | REPRESENTATION(kTaggedPtr)) \
-  V(Function,            1 << 18 | REPRESENTATION(kTaggedPtr)) \
-  V(RegExp,              1 << 19 | REPRESENTATION(kTaggedPtr)) \
-  V(OtherObject,         1 << 20 | REPRESENTATION(kTaggedPtr)) \
-  V(Proxy,               1 << 21 | REPRESENTATION(kTaggedPtr)) \
-  V(Internal,            1 << 22 | REPRESENTATION(kTagged | kUntagged)) \
+  V(Null,                1u << 1  | REPRESENTATION(kTaggedPtr)) \
+  V(Undefined,           1u << 2  | REPRESENTATION(kTaggedPtr)) \
+  V(Boolean,             1u << 3  | REPRESENTATION(kTaggedPtr)) \
+  V(UnsignedSmall,       1u << 4  | REPRESENTATION(kTagged | kUntaggedNumber)) \
+  V(OtherSignedSmall,    1u << 5  | REPRESENTATION(kTagged | kUntaggedNumber)) \
+  V(OtherUnsigned31,     1u << 6  | REPRESENTATION(kTagged | kUntaggedNumber)) \
+  V(OtherUnsigned32,     1u << 7  | REPRESENTATION(kTagged | kUntaggedNumber)) \
+  V(OtherSigned32,       1u << 8  | REPRESENTATION(kTagged | kUntaggedNumber)) \
+  V(MinusZero,           1u << 9  | REPRESENTATION(kTagged | kUntaggedNumber)) \
+  V(NaN,                 1u << 10 | REPRESENTATION(kTagged | kUntaggedNumber)) \
+  V(OtherNumber,         1u << 11 | REPRESENTATION(kTagged | kUntaggedNumber)) \
+  V(Symbol,              1u << 12 | REPRESENTATION(kTaggedPtr)) \
+  V(InternalizedString,  1u << 13 | REPRESENTATION(kTaggedPtr)) \
+  V(OtherString,         1u << 14 | REPRESENTATION(kTaggedPtr)) \
+  V(Undetectable,        1u << 15 | REPRESENTATION(kTaggedPtr)) \
+  V(Array,               1u << 16 | REPRESENTATION(kTaggedPtr)) \
+  V(Buffer,              1u << 17 | REPRESENTATION(kTaggedPtr)) \
+  V(Function,            1u << 18 | REPRESENTATION(kTaggedPtr)) \
+  V(RegExp,              1u << 19 | REPRESENTATION(kTaggedPtr)) \
+  V(OtherObject,         1u << 20 | REPRESENTATION(kTaggedPtr)) \
+  V(Proxy,               1u << 21 | REPRESENTATION(kTaggedPtr)) \
+  V(Internal,            1u << 22 | REPRESENTATION(kTagged | kUntagged)) \
   \
   V(SignedSmall,         kUnsignedSmall | kOtherSignedSmall) \
   V(Signed32,            kSignedSmall | kOtherUnsigned31 | kOtherSigned32) \
   V(Unsigned32,          kUnsignedSmall | kOtherUnsigned31 | kOtherUnsigned32) \
   V(Integral32,          kSigned32 | kUnsigned32) \
   V(OrderedNumber,       kIntegral32 | kMinusZero | kOtherNumber) \
   V(Number,              kOrderedNumber | kNaN) \
   V(String,              kInternalizedString | kOtherString) \
   V(UniqueName,          kSymbol | kInternalizedString) \
   V(Name,                kSymbol | kString) \
@@ skipping 794 matching lines @@
   bool Narrows(BoundsImpl that) {
     return that.lower->Is(this->lower) && this->upper->Is(that.upper);
   }
 };
 
 typedef BoundsImpl<ZoneTypeConfig> Bounds;
 
 } }  // namespace v8::internal
 
 #endif  // V8_TYPES_H_