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Unified Diff: src/objects.h

Issue 2695653005: Revert of Remove SIMD.js from V8. (Closed)
Patch Set: Created 3 years, 10 months ago
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Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 00642871bdc2a35e2cd80b6e4743adbb7c4e8939..e186cdc37bd5b2d206c9733b73306ebcfb2bd412 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -122,6 +122,17 @@
// - ExternalTwoByteInternalizedString
// - Symbol
// - HeapNumber
+// - Simd128Value
+// - Float32x4
+// - Int32x4
+// - Uint32x4
+// - Bool32x4
+// - Int16x8
+// - Uint16x8
+// - Bool16x8
+// - Int8x16
+// - Uint8x16
+// - Bool8x16
// - Cell
// - PropertyCell
// - Code
@@ -319,6 +330,7 @@
\
V(SYMBOL_TYPE) \
V(HEAP_NUMBER_TYPE) \
+ V(SIMD128_VALUE_TYPE) \
V(ODDBALL_TYPE) \
\
V(MAP_TYPE) \
@@ -656,6 +668,7 @@
// Other primitives (cannot contain non-map-word pointers to heap objects).
HEAP_NUMBER_TYPE,
+ SIMD128_VALUE_TYPE,
ODDBALL_TYPE, // LAST_PRIMITIVE_TYPE
// Objects allocated in their own spaces (never in new space).
@@ -972,6 +985,17 @@
#define HEAP_OBJECT_TYPE_LIST(V) \
V(HeapNumber) \
V(MutableHeapNumber) \
+ V(Simd128Value) \
+ V(Float32x4) \
+ V(Int32x4) \
+ V(Uint32x4) \
+ V(Bool32x4) \
+ V(Int16x8) \
+ V(Uint16x8) \
+ V(Bool16x8) \
+ V(Int8x16) \
+ V(Uint8x16) \
+ V(Bool8x16) \
V(Name) \
V(UniqueName) \
V(String) \
@@ -1841,6 +1865,71 @@
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(HeapNumber);
};
+
+
+// The Simd128Value class describes heap allocated 128 bit SIMD values.
+class Simd128Value : public HeapObject {
+ public:
+ DECLARE_CAST(Simd128Value)
+
+ DECLARE_PRINTER(Simd128Value)
+ DECLARE_VERIFIER(Simd128Value)
+
+ static Handle<String> ToString(Handle<Simd128Value> input);
+
+ // Equality operations.
+ inline bool Equals(Simd128Value* that);
+ static inline bool Equals(Handle<Simd128Value> one, Handle<Simd128Value> two);
+
+ // Checks that another instance is bit-wise equal.
+ bool BitwiseEquals(const Simd128Value* other) const;
+ // Computes a hash from the 128 bit value, viewed as 4 32-bit integers.
+ uint32_t Hash() const;
+ // Copies the 16 bytes of SIMD data to the destination address.
+ void CopyBits(void* destination) const;
+
+ // Layout description.
+ static const int kValueOffset = HeapObject::kHeaderSize;
+ static const int kSize = kValueOffset + kSimd128Size;
+
+ private:
+ DISALLOW_IMPLICIT_CONSTRUCTORS(Simd128Value);
+};
+
+
+// V has parameters (TYPE, Type, type, lane count, lane type)
+#define SIMD128_TYPES(V) \
+ V(FLOAT32X4, Float32x4, float32x4, 4, float) \
+ V(INT32X4, Int32x4, int32x4, 4, int32_t) \
+ V(UINT32X4, Uint32x4, uint32x4, 4, uint32_t) \
+ V(BOOL32X4, Bool32x4, bool32x4, 4, bool) \
+ V(INT16X8, Int16x8, int16x8, 8, int16_t) \
+ V(UINT16X8, Uint16x8, uint16x8, 8, uint16_t) \
+ V(BOOL16X8, Bool16x8, bool16x8, 8, bool) \
+ V(INT8X16, Int8x16, int8x16, 16, int8_t) \
+ V(UINT8X16, Uint8x16, uint8x16, 16, uint8_t) \
+ V(BOOL8X16, Bool8x16, bool8x16, 16, bool)
+
+#define SIMD128_VALUE_CLASS(TYPE, Type, type, lane_count, lane_type) \
+ class Type final : public Simd128Value { \
+ public: \
+ inline lane_type get_lane(int lane) const; \
+ inline void set_lane(int lane, lane_type value); \
+ \
+ DECLARE_CAST(Type) \
+ \
+ DECLARE_PRINTER(Type) \
+ \
+ static Handle<String> ToString(Handle<Type> input); \
+ \
+ inline bool Equals(Type* that); \
+ \
+ private: \
+ DISALLOW_IMPLICIT_CONSTRUCTORS(Type); \
+ };
+SIMD128_TYPES(SIMD128_VALUE_CLASS)
+#undef SIMD128_VALUE_CLASS
+
enum EnsureElementsMode {
DONT_ALLOW_DOUBLE_ELEMENTS,
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