[arm] Remove embedded constant pool support.

src/compiler/arm/code-generator-arm.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/arm/macro-assembler-arm.h"
 #include "src/assembler-inl.h"
 #include "src/compilation-info.h"
 #include "src/compiler/code-generator-impl.h"
@@ skipping 485 matching lines @@
     DCHECK_EQ(LeaveCC, i.OutputSBit());                                        \
   } while (0)
 
 void CodeGenerator::AssembleDeconstructFrame() {
   __ LeaveFrame(StackFrame::MANUAL);
   unwinding_info_writer_.MarkFrameDeconstructed(__ pc_offset());
 }
 
 void CodeGenerator::AssemblePrepareTailCall() {
   if (frame_access_state()->has_frame()) {
-    if (FLAG_enable_embedded_constant_pool) {
-      __ ldr(cp, MemOperand(fp, StandardFrameConstants::kConstantPoolOffset));
-    }
     __ ldr(lr, MemOperand(fp, StandardFrameConstants::kCallerPCOffset));
     __ ldr(fp, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
   }
   frame_access_state()->SetFrameAccessToSP();
 }
 
 void CodeGenerator::AssemblePopArgumentsAdaptorFrame(Register args_reg,
                                                      Register scratch1,
                                                      Register scratch2,
                                                      Register scratch3) {
@@ skipping 1982 matching lines @@
 
   if (saves_fp != 0) {
     // Save callee-saved FP registers.
     STATIC_ASSERT(DwVfpRegister::kMaxNumRegisters == 32);
     uint32_t last = base::bits::CountLeadingZeros32(saves_fp) - 1;
     uint32_t first = base::bits::CountTrailingZeros32(saves_fp);
     DCHECK_EQ((last - first + 1), base::bits::CountPopulation32(saves_fp));
     frame->AllocateSavedCalleeRegisterSlots((last - first + 1) *
                                             (kDoubleSize / kPointerSize));
   }
-  const RegList saves = FLAG_enable_embedded_constant_pool
-                            ? (descriptor->CalleeSavedRegisters() & ~pp.bit())
-                            : descriptor->CalleeSavedRegisters();
+  const RegList saves = descriptor->CalleeSavedRegisters();
   if (saves != 0) {
     // Save callee-saved registers.
     frame->AllocateSavedCalleeRegisterSlots(
         base::bits::CountPopulation32(saves));
   }
 }
 
 void CodeGenerator::AssembleConstructFrame() {
   CallDescriptor* descriptor = linkage()->GetIncomingDescriptor();
   if (frame_access_state()->has_frame()) {
     if (descriptor->IsCFunctionCall()) {
-      if (FLAG_enable_embedded_constant_pool) {
-        __ Push(lr, fp, pp);
-        // Adjust FP to point to saved FP.
-        __ sub(fp, sp, Operand(StandardFrameConstants::kConstantPoolOffset));
-      } else {
-        __ Push(lr, fp);
-        __ mov(fp, sp);
-      }
+      __ Push(lr, fp);
+      __ mov(fp, sp);
     } else if (descriptor->IsJSFunctionCall()) {
       __ Prologue(this->info()->GeneratePreagedPrologue());
       if (descriptor->PushArgumentCount()) {
         __ Push(kJavaScriptCallArgCountRegister);
       }
     } else {
       __ StubPrologue(info()->GetOutputStackFrameType());
     }
 
     if (!info()->GeneratePreagedPrologue()) {
@@ skipping 65 matching lines @@
 
   if (saves_fp != 0) {
     // Save callee-saved FP registers.
     STATIC_ASSERT(DwVfpRegister::kMaxNumRegisters == 32);
     uint32_t last = base::bits::CountLeadingZeros32(saves_fp) - 1;
     uint32_t first = base::bits::CountTrailingZeros32(saves_fp);
     DCHECK_EQ((last - first + 1), base::bits::CountPopulation32(saves_fp));
     __ vstm(db_w, sp, DwVfpRegister::from_code(first),
             DwVfpRegister::from_code(last));
   }
-  const RegList saves = FLAG_enable_embedded_constant_pool
-                            ? (descriptor->CalleeSavedRegisters() & ~pp.bit())
-                            : descriptor->CalleeSavedRegisters();
+  const RegList saves = descriptor->CalleeSavedRegisters();
   if (saves != 0) {
     // Save callee-saved registers.
     __ stm(db_w, sp, saves);
   }
 }
 
 void CodeGenerator::AssembleReturn(InstructionOperand* pop) {
   CallDescriptor* descriptor = linkage()->GetIncomingDescriptor();
   int pop_count = static_cast<int>(descriptor->StackParameterCount());
 
   // Restore registers.
-  const RegList saves = FLAG_enable_embedded_constant_pool
-                            ? (descriptor->CalleeSavedRegisters() & ~pp.bit())
-                            : descriptor->CalleeSavedRegisters();
+  const RegList saves = descriptor->CalleeSavedRegisters();
   if (saves != 0) {
     __ ldm(ia_w, sp, saves);
   }
 
   // Restore FP registers.
   const RegList saves_fp = descriptor->CalleeSavedFPRegisters();
   if (saves_fp != 0) {
     STATIC_ASSERT(DwVfpRegister::kMaxNumRegisters == 32);
     uint32_t last = base::bits::CountLeadingZeros32(saves_fp) - 1;
     uint32_t first = base::bits::CountTrailingZeros32(saves_fp);
@@ skipping 341 matching lines @@
       padding_size -= v8::internal::Assembler::kInstrSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8