Experimental implementation: Exposing SIMD instructions into JavaScript

src/globals.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 203 matching lines @@
 #endif
 
 #if (defined(__APPLE__) && defined(__MACH__)) || \
     defined(__FreeBSD__) || defined(__OpenBSD__)
 #define USING_BSD_ABI
 #endif
 
 // -----------------------------------------------------------------------------
 // Constants
 
+struct float32x4_value_t { float storage[4]; };
+struct int32x4_value_t { int32_t storage[4]; };
+union xmm_value_t {
+  double d[2];
+  float32x4_value_t f;
+  int32x4_value_t u;
+};
+
 const int KB = 1024;
 const int MB = KB * KB;
 const int GB = KB * KB * KB;
 const int kMaxInt = 0x7FFFFFFF;
 const int kMinInt = -kMaxInt - 1;
 const int kMaxInt8 = (1 << 7) - 1;
 const int kMinInt8 = -(1 << 7);
 const int kMaxUInt8 = (1 << 8) - 1;
 const int kMinUInt8 = 0;
 const int kMaxInt16 = (1 << 15) - 1;
 const int kMinInt16 = -(1 << 15);
 const int kMaxUInt16 = (1 << 16) - 1;
 const int kMinUInt16 = 0;
 
 const uint32_t kMaxUInt32 = 0xFFFFFFFFu;
 
-const int kCharSize      = sizeof(char);      // NOLINT
-const int kShortSize     = sizeof(short);     // NOLINT
-const int kIntSize       = sizeof(int);       // NOLINT
-const int kInt32Size     = sizeof(int32_t);   // NOLINT
-const int kInt64Size     = sizeof(int64_t);   // NOLINT
-const int kDoubleSize    = sizeof(double);    // NOLINT
-const int kIntptrSize    = sizeof(intptr_t);  // NOLINT
-const int kPointerSize   = sizeof(void*);     // NOLINT
+const int kCharSize      = sizeof(char);                 // NOLINT
+const int kShortSize     = sizeof(short);                // NOLINT
+const int kIntSize       = sizeof(int);                  // NOLINT
+const int kInt32Size     = sizeof(int32_t);              // NOLINT
+const int kInt64Size     = sizeof(int64_t);              // NOLINT
+const int kDoubleSize    = sizeof(double);               // NOLINT
+const int kFloatSize     = sizeof(float);                // NOLINT
+const int kFloat32x4Size = sizeof(float32x4_value_t);    // NOLINT
+const int kInt32x4Size   = sizeof(int32x4_value_t);      // NOLINT
+const int kIntptrSize    = sizeof(intptr_t);             // NOLINT
+const int kPointerSize   = sizeof(void*);                // NOLINT
 const int kRegisterSize  = kPointerSize;
 const int kPCOnStackSize = kRegisterSize;
 const int kFPOnStackSize = kRegisterSize;
 
 const int kDoubleSizeLog2 = 3;
 
 #if V8_HOST_ARCH_64_BIT
 const int kPointerSizeLog2 = 3;
 const intptr_t kIntptrSignBit = V8_INT64_C(0x8000000000000000);
 const uintptr_t kUintptrAllBitsSet = V8_UINT64_C(0xFFFFFFFFFFFFFFFF);
@@ skipping 151 matching lines @@
 // the backend, so both modes are represented by the kStrictMode value.
 enum StrictModeFlag {
   kNonStrictMode,
   kStrictMode
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_GLOBALS_H_