Contribution of PowerPC port.

src/isolate.h

Index: src/isolate.h
diff --git a/src/isolate.h b/src/isolate.h
index c0376aeac0bf4a7cf7922daae6603a67265d7f59..01376b13171b26085a7221acd0b30778f85de453 100644
--- a/src/isolate.h
+++ b/src/isolate.h
@@ -80,9 +80,10 @@ class Debug;
 class Debugger;
 class PromiseOnStack;
 
-#if !defined(__arm__) && V8_TARGET_ARCH_ARM || \
+#if !defined(__arm__) && V8_TARGET_ARCH_ARM ||       \
     !defined(__aarch64__) && V8_TARGET_ARCH_ARM64 || \
-    !defined(__mips__) && V8_TARGET_ARCH_MIPS || \
+    !defined(__PPC__) && V8_TARGET_ARCH_PPC ||       \
+    !defined(__mips__) && V8_TARGET_ARCH_MIPS ||     \
     !defined(__mips__) && V8_TARGET_ARCH_MIPS64
 class Redirection;
 class Simulator;
@@ -297,9 +298,10 @@ class ThreadLocalTop BASE_EMBEDDED {
 };
 
 
-#if V8_TARGET_ARCH_ARM && !defined(__arm__) || \
+#if V8_TARGET_ARCH_ARM && !defined(__arm__) ||       \
     V8_TARGET_ARCH_ARM64 && !defined(__aarch64__) || \
-    V8_TARGET_ARCH_MIPS && !defined(__mips__) || \
+    V8_TARGET_ARCH_PPC && !defined(__PPC__) ||       \
+    V8_TARGET_ARCH_MIPS && !defined(__mips__) ||     \
     V8_TARGET_ARCH_MIPS64 && !defined(__mips__)
 
 #define ISOLATE_INIT_SIMULATOR_LIST(V)                                         \
@@ -396,9 +398,10 @@ class Isolate {
           thread_id_(thread_id),
           stack_limit_(0),
           thread_state_(NULL),
-#if !defined(__arm__) && V8_TARGET_ARCH_ARM || \
+#if !defined(__arm__) && V8_TARGET_ARCH_ARM ||       \
     !defined(__aarch64__) && V8_TARGET_ARCH_ARM64 || \
-    !defined(__mips__) && V8_TARGET_ARCH_MIPS || \
+    !defined(__PPC__) && V8_TARGET_ARCH_PPC ||       \
+    !defined(__mips__) && V8_TARGET_ARCH_MIPS ||     \
     !defined(__mips__) && V8_TARGET_ARCH_MIPS64
           simulator_(NULL),
 #endif
@@ -411,9 +414,10 @@ class Isolate {
     FIELD_ACCESSOR(uintptr_t, stack_limit)
     FIELD_ACCESSOR(ThreadState*, thread_state)
 
-#if !defined(__arm__) && V8_TARGET_ARCH_ARM || \
+#if !defined(__arm__) && V8_TARGET_ARCH_ARM ||       \
     !defined(__aarch64__) && V8_TARGET_ARCH_ARM64 || \
-    !defined(__mips__) && V8_TARGET_ARCH_MIPS || \
+    !defined(__PPC__) && V8_TARGET_ARCH_PPC ||       \
+    !defined(__mips__) && V8_TARGET_ARCH_MIPS ||     \
     !defined(__mips__) && V8_TARGET_ARCH_MIPS64
     FIELD_ACCESSOR(Simulator*, simulator)
 #endif
@@ -428,9 +432,10 @@ class Isolate {
     uintptr_t stack_limit_;
     ThreadState* thread_state_;
 
-#if !defined(__arm__) && V8_TARGET_ARCH_ARM || \
+#if !defined(__arm__) && V8_TARGET_ARCH_ARM ||       \
     !defined(__aarch64__) && V8_TARGET_ARCH_ARM64 || \
-    !defined(__mips__) && V8_TARGET_ARCH_MIPS || \
+    !defined(__PPC__) && V8_TARGET_ARCH_PPC ||       \
+    !defined(__mips__) && V8_TARGET_ARCH_MIPS ||     \
     !defined(__mips__) && V8_TARGET_ARCH_MIPS64
     Simulator* simulator_;
 #endif