[arm] Remove embedded constant pool support.

src/full-codegen/arm/full-codegen-arm.cc

 // 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.
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/assembler-inl.h"
 #include "src/ast/compile-time-value.h"
 #include "src/ast/scopes.h"
 #include "src/builtins/builtins-constructor.h"
@@ skipping 2742 matching lines @@
   }
   PushOperand(ip);
 }
 
 
 #undef __
 
 
 static Address GetInterruptImmediateLoadAddress(Address pc) {
   Address load_address = pc - 2 * Assembler::kInstrSize;
-  if (!FLAG_enable_embedded_constant_pool) {
-    DCHECK(Assembler::IsLdrPcImmediateOffset(Memory::int32_at(load_address)));
-  } else if (Assembler::IsLdrPpRegOffset(Memory::int32_at(load_address))) {
-    // This is an extended constant pool lookup.
-    if (CpuFeatures::IsSupported(ARMv7)) {
-      load_address -= 2 * Assembler::kInstrSize;
-      DCHECK(Assembler::IsMovW(Memory::int32_at(load_address)));
-      DCHECK(Assembler::IsMovT(
-          Memory::int32_at(load_address + Assembler::kInstrSize)));
-    } else {
-      load_address -= 4 * Assembler::kInstrSize;
-      DCHECK(Assembler::IsMovImmed(Memory::int32_at(load_address)));
-      DCHECK(Assembler::IsOrrImmed(
-          Memory::int32_at(load_address + Assembler::kInstrSize)));
-      DCHECK(Assembler::IsOrrImmed(
-          Memory::int32_at(load_address + 2 * Assembler::kInstrSize)));
-      DCHECK(Assembler::IsOrrImmed(
-          Memory::int32_at(load_address + 3 * Assembler::kInstrSize)));
-    }
-  } else if (CpuFeatures::IsSupported(ARMv7) &&
-             Assembler::IsMovT(Memory::int32_at(load_address))) {
-    // This is a movw / movt immediate load.
-    load_address -= Assembler::kInstrSize;
-    DCHECK(Assembler::IsMovW(Memory::int32_at(load_address)));
-  } else if (!CpuFeatures::IsSupported(ARMv7) &&
-             Assembler::IsOrrImmed(Memory::int32_at(load_address))) {
-    // This is a mov / orr immediate load.
-    load_address -= 3 * Assembler::kInstrSize;
-    DCHECK(Assembler::IsMovImmed(Memory::int32_at(load_address)));
-    DCHECK(Assembler::IsOrrImmed(
-        Memory::int32_at(load_address + Assembler::kInstrSize)));
-    DCHECK(Assembler::IsOrrImmed(
-        Memory::int32_at(load_address + 2 * Assembler::kInstrSize)));
-  } else {
-    // This is a small constant pool lookup.
-    DCHECK(Assembler::IsLdrPpImmediateOffset(Memory::int32_at(load_address)));
-  }
+  DCHECK(Assembler::IsLdrPcImmediateOffset(Memory::int32_at(load_address)));
   return load_address;
 }
 
 
 void BackEdgeTable::PatchAt(Code* unoptimized_code,
                             Address pc,
                             BackEdgeState target_state,
                             Code* replacement_code) {
   Address pc_immediate_load_address = GetInterruptImmediateLoadAddress(pc);
   Address branch_address = pc_immediate_load_address - Assembler::kInstrSize;
@@ skipping 81 matching lines @@
   DCHECK(interrupt_address ==
          isolate->builtins()->OnStackReplacement()->entry());
   return ON_STACK_REPLACEMENT;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM