Contribution of PowerPC port (continuation of 422063005)

src/code-stubs.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_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/codegen.h"
@@ skipping 93 matching lines @@
 #if V8_TARGET_ARCH_ARM64
 #define CODE_STUB_LIST_ARM64(V) \
   V(DirectCEntry)               \
   V(RestoreRegistersState)      \
   V(StoreRegistersState)
 
 #else
 #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) \
   V(DirectCEntry)              \
   V(RestoreRegistersState)     \
   V(StoreRegistersState)
 #elif V8_TARGET_ARCH_MIPS64
 #define CODE_STUB_LIST_MIPS(V) \
   V(DirectCEntry)              \
   V(RestoreRegistersState)     \
   V(StoreRegistersState)
 #else
 #define CODE_STUB_LIST_MIPS(V)
 #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.
 class CodeStub BASE_EMBEDDED {
  public:
   enum Major {
     // TODO(mvstanton): eliminate the NoCache key by getting rid
     //                  of the non-monomorphic-cache.
     NoCache = 0,  // marker for stubs that do custom caching]
 #define DEF_ENUM(name) name,
@@ skipping 353 matching lines @@
 } }  // namespace v8::internal
 
 #if V8_TARGET_ARCH_IA32
 #include "src/ia32/code-stubs-ia32.h"
 #elif V8_TARGET_ARCH_X64
 #include "src/x64/code-stubs-x64.h"
 #elif V8_TARGET_ARCH_ARM64
 #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
 #include "src/mips64/code-stubs-mips64.h"
 #elif V8_TARGET_ARCH_X87
 #include "src/x87/code-stubs-x87.h"
 #else
 #error Unsupported target architecture.
 #endif
 
@@ skipping 936 matching lines @@
 std::ostream& operator<<(std::ostream& os, const CompareNilICStub::State& s);
 
 
 class CEntryStub : public PlatformCodeStub {
  public:
   CEntryStub(Isolate* isolate, int result_size,
              SaveFPRegsMode save_doubles = kDontSaveFPRegs)
       : 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
   }
 
   // The version of this stub that doesn't save doubles is generated ahead of
   // time, so it's OK to call it from other stubs that can't cope with GC during
   // their code generation.  On machines that always have gp registers (x64) we
   // can generate both variants ahead of time.
   static void GenerateAheadOfTime(Isolate* isolate);
 
  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
 
   bool NeedsImmovableCode() OVERRIDE;
 
   class SaveDoublesBits : public BitField<bool, 0, 1> {};
   class ResultSizeBits : public BitField<int, 1, 3> {};
 
   DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
   DEFINE_PLATFORM_CODE_STUB(CEntry, PlatformCodeStub);
@@ skipping 1090 matching lines @@
 
 #undef DEFINE_CALL_INTERFACE_DESCRIPTOR
 #undef DEFINE_PLATFORM_CODE_STUB
 #undef DEFINE_HANDLER_CODE_STUB
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_