Embedded constant pools.

src/compiler/ppc/code-generator-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 "src/compiler/code-generator.h"
 
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/ppc/macro-assembler-ppc.h"
@@ skipping 1251 matching lines @@
 
 
 void CodeGenerator::AssemblePrologue() {
   CallDescriptor* descriptor = linkage()->GetIncomingDescriptor();
   int stack_slots = frame()->GetSpillSlotCount();
   if (descriptor->kind() == CallDescriptor::kCallAddress) {
     __ function_descriptor();
     int register_save_area_size = 0;
     RegList frame_saves = fp.bit();
     __ mflr(r0);
-    __ Push(r0, fp);
-    __ mr(fp, sp);
+    if (FLAG_enable_embedded_constant_pool) {
+      __ Push(r0, fp, kConstantPoolRegister);
+      // Adjust FP to point to saved FP.
+      __ subi(fp, sp, Operand(StandardFrameConstants::kConstantPoolOffset));
+      register_save_area_size += kPointerSize;
+      frame_saves |= kConstantPoolRegister.bit();
+    } else {
+      __ Push(r0, fp);
+      __ mr(fp, sp);
+    }
     // Save callee-saved registers.
     const RegList saves = descriptor->CalleeSavedRegisters() & ~frame_saves;
     for (int i = Register::kNumRegisters - 1; i >= 0; i--) {
       if (!((1 << i) & saves)) continue;
       register_save_area_size += kPointerSize;
     }
     frame()->SetRegisterSaveAreaSize(register_save_area_size);
     __ MultiPush(saves);
   } else if (descriptor->IsJSFunctionCall()) {
     CompilationInfo* info = this->info();
@@ skipping 32 matching lines @@
   CallDescriptor* descriptor = linkage()->GetIncomingDescriptor();
   int stack_slots = frame()->GetSpillSlotCount();
   if (descriptor->kind() == CallDescriptor::kCallAddress) {
     if (frame()->GetRegisterSaveAreaSize() > 0) {
       // Remove this frame's spill slots first.
       if (stack_slots > 0) {
         __ Add(sp, sp, stack_slots * kPointerSize, r0);
       }
       // Restore registers.
       RegList frame_saves = fp.bit();
+      if (FLAG_enable_embedded_constant_pool) {
+        frame_saves |= kConstantPoolRegister.bit();
+      }
       const RegList saves = descriptor->CalleeSavedRegisters() & ~frame_saves;
       if (saves != 0) {
         __ MultiPop(saves);
       }
     }
     __ LeaveFrame(StackFrame::MANUAL);
     __ Ret();
   } else if (descriptor->IsJSFunctionCall() || needs_frame_) {
     int pop_count = descriptor->IsJSFunctionCall()
                         ? static_cast<int>(descriptor->JSParameterCount())
@@ skipping 205 matching lines @@
     }
   }
   MarkLazyDeoptSite();
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8