Contribution of PowerPC port (continuation of 422063005)

src/globals.h

 // Copyright 2012 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_GLOBALS_H_
 #define V8_GLOBALS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 10 matching lines @@
 # include <limits>  // NOLINT
 # define V8_INFINITY std::numeric_limits<double>::infinity()
 #elif V8_LIBC_MSVCRT
 # define V8_INFINITY HUGE_VAL
 #else
 # define V8_INFINITY INFINITY
 #endif
 
 #if V8_TARGET_ARCH_IA32 || (V8_TARGET_ARCH_X64 && !V8_TARGET_ARCH_32_BIT) || \
     V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_MIPS ||     \
-    V8_TARGET_ARCH_MIPS64
+    V8_TARGET_ARCH_MIPS64 || V8_TARGET_ARCH_PPC
 #define V8_TURBOFAN_BACKEND 1
 #else
 #define V8_TURBOFAN_BACKEND 0
 #endif
 #if V8_TURBOFAN_BACKEND
 #define V8_TURBOFAN_TARGET 1
 #else
 #define V8_TURBOFAN_TARGET 0
 #endif
 
@@ skipping 10 matching lines @@
 // Determine whether we are running in a simulated environment.
 // Setting USE_SIMULATOR explicitly from the build script will force
 // the use of a simulated environment.
 #if !defined(USE_SIMULATOR)
 #if (V8_TARGET_ARCH_ARM64 && !V8_HOST_ARCH_ARM64)
 #define USE_SIMULATOR 1
 #endif
 #if (V8_TARGET_ARCH_ARM && !V8_HOST_ARCH_ARM)
 #define USE_SIMULATOR 1
 #endif
+#if (V8_TARGET_ARCH_PPC && !V8_HOST_ARCH_PPC)
+#define USE_SIMULATOR 1
+#endif
 #if (V8_TARGET_ARCH_MIPS && !V8_HOST_ARCH_MIPS)
 #define USE_SIMULATOR 1
 #endif
 #if (V8_TARGET_ARCH_MIPS64 && !V8_HOST_ARCH_MIPS64)
 #define USE_SIMULATOR 1
 #endif
 #endif
 
 // Determine whether the architecture uses an out-of-line constant pool.
 #define V8_OOL_CONSTANT_POOL 0
 
 #ifdef V8_TARGET_ARCH_ARM
 // Set stack limit lower for ARM than for other architectures because
 // stack allocating MacroAssembler takes 120K bytes.
 // See issue crbug.com/405338
 #define V8_DEFAULT_STACK_SIZE_KB 864
 #else
 // Slightly less than 1MB, since Windows' default stack size for
 // the main execution thread is 1MB for both 32 and 64-bit.
 #define V8_DEFAULT_STACK_SIZE_KB 984
 #endif
 
 
 // Determine whether double field unboxing feature is enabled.
-#if (V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_ARM64)
+#if (V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_PPC64)

[Sven Panne, 2015/01/08 10:13:53]

Simpler and more future-proof: #if V8_TARGET_ARCH_64_BIT

[michael_dawson, 2015/01/08 23:51:11]

Will do 

 #define V8_DOUBLE_FIELDS_UNBOXING 1
 #else
 #define V8_DOUBLE_FIELDS_UNBOXING 0
 #endif
 
 
 typedef uint8_t byte;
 typedef byte* Address;
 
 // -----------------------------------------------------------------------------
@@ skipping 519 matching lines @@
   VFP32DREGS,
   NEON,
   // MIPS, MIPS64
   FPU,
   FP64FPU,
   MIPSr1,
   MIPSr2,
   MIPSr6,
   // ARM64
   ALWAYS_ALIGN_CSP,
+  // PPC
+  FPR_GPR_MOV,
+  LWSYNC,
+  ISELECT,
   NUMBER_OF_CPU_FEATURES
 };
 
 
 // Used to specify if a macro instruction must perform a smi check on tagged
 // values.
 enum SmiCheckType {
   DONT_DO_SMI_CHECK,
   DO_SMI_CHECK
 };
@@ skipping 172 matching lines @@
   DCHECK(IsValidFunctionKind(kind));
   return kind & FunctionKind::kDefaultConstructor;
 }
 
 
 } }  // namespace v8::internal
 
 namespace i = v8::internal;
 
 #endif  // V8_GLOBALS_H_