Contribution of PowerPC port (continuation of 422063005)

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index 8448e557f240ac496e4e0962e8489dfdec3ab012..ab56f3424eb32fa876314e0b44aaff9112e64ef2 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -111,6 +111,16 @@ namespace internal {
 #define CODE_STUB_LIST_ARM64(V)
 #endif
 
+// List of code stubs only used on PPC platforms.
+#ifdef V8_TARGET_ARCH_PPC
+#define CODE_STUB_LIST_PPC(V) \
+  V(DirectCEntry)             \
+  V(StoreRegistersState)      \
+  V(RestoreRegistersState)
+#else
+#define CODE_STUB_LIST_PPC(V)
+#endif
+
 // List of code stubs only used on MIPS platforms.
 #if V8_TARGET_ARCH_MIPS
 #define CODE_STUB_LIST_MIPS(V) \
@@ -127,10 +137,11 @@ namespace internal {
 #endif
 
 // Combined list of code stubs.
-#define CODE_STUB_LIST(V)            \
-  CODE_STUB_LIST_ALL_PLATFORMS(V)    \
-  CODE_STUB_LIST_ARM(V)              \
-  CODE_STUB_LIST_ARM64(V)           \
+#define CODE_STUB_LIST(V)         \
+  CODE_STUB_LIST_ALL_PLATFORMS(V) \
+  CODE_STUB_LIST_ARM(V)           \
+  CODE_STUB_LIST_ARM64(V)         \
+  CODE_STUB_LIST_PPC(V)           \
   CODE_STUB_LIST_MIPS(V)
 
 // Stub is base classes of all stubs.
@@ -504,6 +515,8 @@ class RuntimeCallHelper {
 #include "src/arm64/code-stubs-arm64.h"
 #elif V8_TARGET_ARCH_ARM
 #include "src/arm/code-stubs-arm.h"
+#elif V8_TARGET_ARCH_PPC
+#include "src/ppc/code-stubs-ppc.h"
 #elif V8_TARGET_ARCH_MIPS
 #include "src/mips/code-stubs-mips.h"
 #elif V8_TARGET_ARCH_MIPS64
@@ -1460,7 +1473,7 @@ class CEntryStub : public PlatformCodeStub {
       : PlatformCodeStub(isolate) {
     minor_key_ = SaveDoublesBits::encode(save_doubles == kSaveFPRegs);
     DCHECK(result_size == 1 || result_size == 2);
-#ifdef _WIN64
+#if _WIN64 || (V8_TARGET_ARCH_PPC64 && !ABI_RETURNS_OBJECT_PAIRS_IN_REGS)
     minor_key_ = ResultSizeBits::update(minor_key_, result_size);
 #endif  // _WIN64
   }
@@ -1473,7 +1486,7 @@ class CEntryStub : public PlatformCodeStub {
 
  private:
   bool save_doubles() const { return SaveDoublesBits::decode(minor_key_); }
-#ifdef _WIN64
+#if _WIN64 || (V8_TARGET_ARCH_PPC64 && !ABI_RETURNS_OBJECT_PAIRS_IN_REGS)
   int result_size() const { return ResultSizeBits::decode(minor_key_); }
 #endif  // _WIN64