Contribution of PowerPC port (continuation of 422063005) - uplevel

src/ppc/macro-assembler-ppc.h

 // Copyright 2014 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_PPC_MACRO_ASSEMBLER_PPC_H_
 #define V8_PPC_MACRO_ASSEMBLER_PPC_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/frames.h"
@@ skipping 359 matching lines @@
                             const Register dst_hi,
 #endif
                             const Register dst, const DoubleRegister double_dst,
                             FPRoundingMode rounding_mode = kRoundToZero);
 
   // Generates function and stub prologue code.
   void StubPrologue(int prologue_offset = 0);
   void Prologue(bool code_pre_aging, int prologue_offset = 0);
 
   // Enter exit frame.
-  // stack_space - extra stack space, used for alignment before call to C.
-  void EnterExitFrame(bool save_doubles, int stack_space = 0);
+  // stack_space - extra stack space, used for parameters before call to C.
+  // At least one slot (for the return address) should be provided.
+  void EnterExitFrame(bool save_doubles, int stack_space = 1);
 
   // Leave the current exit frame. Expects the return value in r0.
   // Expect the number of values, pushed prior to the exit frame, to
   // remove in a register (or no_reg, if there is nothing to remove).
   void LeaveExitFrame(bool save_doubles, Register argument_count,
                       bool restore_context,
                       bool argument_count_is_length = false);
 
   // Get the actual activation frame alignment for target environment.
   static int ActivationFrameAlignment();
@@ skipping 63 matching lines @@
                               Register scratch);
   void MovInt64ToDouble(DoubleRegister dst,
 #if !V8_TARGET_ARCH_PPC64
                         Register src_hi,
 #endif
                         Register src);
 #if V8_TARGET_ARCH_PPC64
   void MovInt64ComponentsToDouble(DoubleRegister dst, Register src_hi,
                                   Register src_lo, Register scratch);
 #endif
+  void InsertDoubleLow(DoubleRegister dst, Register src, Register scratch);
+  void InsertDoubleHigh(DoubleRegister dst, Register src, Register scratch);
   void MovDoubleLowToInt(Register dst, DoubleRegister src);
   void MovDoubleHighToInt(Register dst, DoubleRegister src);
   void MovDoubleToInt64(
 #if !V8_TARGET_ARCH_PPC64
       Register dst_hi,
 #endif
       Register dst, DoubleRegister src);
 
   void Add(Register dst, Register src, intptr_t value, Register scratch);
   void Cmpi(Register src1, const Operand& src2, Register scratch,
@@ skipping 66 matching lines @@
   // ---------------------------------------------------------------------------
   // Exception handling
 
   // Push a new try handler and link into try handler chain.
   void PushTryHandler(StackHandler::Kind kind, int handler_index);
 
   // Unlink the stack handler on top of the stack from the try handler chain.
   // Must preserve the result register.
   void PopTryHandler();
 
-  // Passes thrown value to the handler of top of the try handler chain.
-  void Throw(Register value);
-
-  // Propagates an uncatchable exception to the top of the current JS stack's
-  // handler chain.
-  void ThrowUncatchable(Register value);
-
   // ---------------------------------------------------------------------------
   // Inline caching support
 
   // Generate code for checking access rights - used for security checks
   // on access to global objects across environments. The holder register
   // is left untouched, whereas both scratch registers are clobbered.
   void CheckAccessGlobalProxy(Register holder_reg, Register scratch,
                               Label* miss);
 
   void GetNumberHash(Register t0, Register scratch);
@@ skipping 909 matching lines @@
   void InNewSpace(Register object, Register scratch,
                   Condition cond,  // eq for new space, ne otherwise.
                   Label* branch);
 
   // Helper for finding the mark bits for an address.  Afterwards, the
   // bitmap register points at the word with the mark bits and the mask
   // the position of the first bit.  Leaves addr_reg unchanged.
   inline void GetMarkBits(Register addr_reg, Register bitmap_reg,
                           Register mask_reg);
 
-  // Helper for throwing exceptions.  Compute a handler address and jump to
-  // it.  See the implementation for register usage.
-  void JumpToHandlerEntry();
-
   static const RegList kSafepointSavedRegisters;
   static const int kNumSafepointSavedRegisters;
 
   // Compute memory operands for safepoint stack slots.
   static int SafepointRegisterStackIndex(int reg_code);
   MemOperand SafepointRegisterSlot(Register reg);
   MemOperand SafepointRegistersAndDoublesSlot(Register reg);
 
   bool generating_stub_;
   bool has_frame_;
@@ skipping 56 matching lines @@
 #define ACCESS_MASM(masm)    \
   masm->stop(__FILE_LINE__); \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 }
 }  // namespace v8::internal
 
 #endif  // V8_PPC_MACRO_ASSEMBLER_PPC_H_