PPC/s390: [everywhere] Custom representation for frame type

src/ppc/macro-assembler-ppc.cc

 // 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.
 
 #include <assert.h>  // For assert
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/base/bits.h"
@@ skipping 951 matching lines @@
 
 
 void MacroAssembler::LoadConstantPoolPointerRegister() {
   mov_label_addr(kConstantPoolRegister, ConstantPoolPosition());
 }
 
 void MacroAssembler::StubPrologue(StackFrame::Type type, Register base,
                                   int prologue_offset) {
   {
     ConstantPoolUnavailableScope constant_pool_unavailable(this);
-    LoadSmiLiteral(r11, Smi::FromInt(type));
+    mov(r11, Operand(StackFrame::TypeToMarker(type)));
     PushCommonFrame(r11);
   }
   if (FLAG_enable_embedded_constant_pool) {
     if (!base.is(no_reg)) {
       // base contains prologue address
       LoadConstantPoolPointerRegister(base, -prologue_offset);
     } else {
       LoadConstantPoolPointerRegister();
     }
     set_constant_pool_available(true);
@@ skipping 44 matching lines @@
 }
 
 
 void MacroAssembler::EnterFrame(StackFrame::Type type,
                                 bool load_constant_pool_pointer_reg) {
   if (FLAG_enable_embedded_constant_pool && load_constant_pool_pointer_reg) {
     // Push type explicitly so we can leverage the constant pool.
     // This path cannot rely on ip containing code entry.
     PushCommonFrame();
     LoadConstantPoolPointerRegister();
-    LoadSmiLiteral(ip, Smi::FromInt(type));
+    mov(ip, Operand(StackFrame::TypeToMarker(type)));
     push(ip);
   } else {
-    LoadSmiLiteral(ip, Smi::FromInt(type));
+    mov(ip, Operand(StackFrame::TypeToMarker(type)));
     PushCommonFrame(ip);
   }
   if (type == StackFrame::INTERNAL) {
     mov(r0, Operand(CodeObject()));
     push(r0);
   }
 }
 
 
 int MacroAssembler::LeaveFrame(StackFrame::Type type, int stack_adjustment) {
@@ skipping 85 matching lines @@
   // Set up the frame structure on the stack.
   DCHECK_EQ(2 * kPointerSize, ExitFrameConstants::kCallerSPDisplacement);
   DCHECK_EQ(1 * kPointerSize, ExitFrameConstants::kCallerPCOffset);
   DCHECK_EQ(0 * kPointerSize, ExitFrameConstants::kCallerFPOffset);
   DCHECK(stack_space > 0);
 
   // This is an opportunity to build a frame to wrap
   // all of the pushes that have happened inside of V8
   // since we were called from C code
 
-  LoadSmiLiteral(ip, Smi::FromInt(frame_type));
+  mov(ip, Operand(StackFrame::TypeToMarker(frame_type)));
   PushCommonFrame(ip);
   // Reserve room for saved entry sp and code object.
   subi(sp, fp, Operand(ExitFrameConstants::kFixedFrameSizeFromFp));
 
   if (emit_debug_code()) {
     li(r8, Operand::Zero());
     StoreP(r8, MemOperand(fp, ExitFrameConstants::kSPOffset));
   }
   if (FLAG_enable_embedded_constant_pool) {
     StoreP(kConstantPoolRegister,
@@ skipping 3197 matching lines @@
   }
   if (mag.shift > 0) srawi(result, result, mag.shift);
   ExtractBit(r0, dividend, 31);
   add(result, result, r0);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC