Contribution of PowerPC port.

src/globals.h

Index: src/globals.h
diff --git a/src/globals.h b/src/globals.h
index cc31be148751020bde24818b425ea3fb99097a22..950d1e18bd6ee031970ee96bade0327e2edab24b 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -57,6 +57,9 @@ namespace internal {
 #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
@@ -66,7 +69,11 @@ namespace internal {
 #endif
 
 // Determine whether the architecture uses an out-of-line constant pool.
+#if V8_TARGET_ARCH_PPC
+#define V8_OOL_CONSTANT_POOL 1
+#else
 #define V8_OOL_CONSTANT_POOL 0
+#endif
 
 // Support for alternative bool type. This is only enabled if the code is
 // compiled with USE_MYBOOL defined. This catches some nasty type bugs.
@@ -618,6 +625,8 @@ enum CpuFeature {
     MIPSr6,
     // ARM64
     ALWAYS_ALIGN_CSP,
+    // PPC
+    FPR_GPR_MOV,
     NUMBER_OF_CPU_FEATURES
 };