[turbofan] support for Int64 in CheckedLoad/CheckedStore on 64-bit platforms.

src/compiler/arm64/code-generator-arm64.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/arm64/frames-arm64.h"
 #include "src/arm64/macro-assembler-arm64.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
@@ skipping 284 matching lines @@
     auto offset = i.InputRegister32(1);                      \
     auto length = i.InputOperand32(2);                       \
     __ Cmp(offset, length);                                  \
     auto ool = new (zone()) OutOfLineLoadZero(this, result); \
     __ B(hs, ool->entry());                                  \
     __ asm_instr(result, MemOperand(buffer, offset, UXTW));  \
     __ Bind(ool->exit());                                    \
   } while (0)
 
 
+#define ASSEMBLE_CHECKED_LOAD_INTEGER_64(asm_instr)          \
+  do {                                                       \
+    auto result = i.OutputRegister();                        \
+    auto buffer = i.InputRegister(0);                        \
+    auto offset = i.InputRegister32(1);                      \
+    auto length = i.InputOperand32(2);                       \
+    __ Cmp(offset, length);                                  \
+    auto ool = new (zone()) OutOfLineLoadZero(this, result); \
+    __ B(hs, ool->entry());                                  \
+    __ asm_instr(result, MemOperand(buffer, offset, UXTW));  \
+    __ Bind(ool->exit());                                    \
+  } while (0)
+
+
 #define ASSEMBLE_CHECKED_STORE_FLOAT(width)          \
   do {                                               \
     auto buffer = i.InputRegister(0);                \
     auto offset = i.InputRegister32(1);              \
     auto length = i.InputOperand32(2);               \
     auto value = i.InputFloat##width##Register(3);   \
     __ Cmp(offset, length);                          \
     Label done;                                      \
     __ B(hs, &done);                                 \
     __ Str(value, MemOperand(buffer, offset, UXTW)); \
     __ Bind(&done);                                  \
   } while (0)
 
 
 #define ASSEMBLE_CHECKED_STORE_INTEGER(asm_instr)          \
   do {                                                     \
     auto buffer = i.InputRegister(0);                      \
     auto offset = i.InputRegister32(1);                    \
     auto length = i.InputOperand32(2);                     \
     auto value = i.InputRegister32(3);                     \
     __ Cmp(offset, length);                                \
     Label done;                                            \
     __ B(hs, &done);                                       \
     __ asm_instr(value, MemOperand(buffer, offset, UXTW)); \
     __ Bind(&done);                                        \
   } while (0)
 
 
+#define ASSEMBLE_CHECKED_STORE_INTEGER_64(asm_instr)       \
+  do {                                                     \
+    auto buffer = i.InputRegister(0);                      \
+    auto offset = i.InputRegister32(1);                    \
+    auto length = i.InputOperand32(2);                     \
+    auto value = i.InputRegister(3);                       \
+    __ Cmp(offset, length);                                \
+    Label done;                                            \
+    __ B(hs, &done);                                       \
+    __ asm_instr(value, MemOperand(buffer, offset, UXTW)); \
+    __ Bind(&done);                                        \
+  } while (0)
+
+
 #define ASSEMBLE_SHIFT(asm_instr, width)                                    \
   do {                                                                      \
     if (instr->InputAt(1)->IsRegister()) {                                  \
       __ asm_instr(i.OutputRegister##width(), i.InputRegister##width(0),    \
                    i.InputRegister##width(1));                              \
     } else {                                                                \
       uint32_t imm =                                                        \
           static_cast<uint32_t>(i.InputOperand##width(1).ImmediateValue()); \
       __ asm_instr(i.OutputRegister##width(), i.InputRegister##width(0),    \
                    imm % (width));                                          \
@@ skipping 592 matching lines @@
       break;
     case kCheckedLoadInt16:
       ASSEMBLE_CHECKED_LOAD_INTEGER(Ldrsh);
       break;
     case kCheckedLoadUint16:
       ASSEMBLE_CHECKED_LOAD_INTEGER(Ldrh);
       break;
     case kCheckedLoadWord32:
       ASSEMBLE_CHECKED_LOAD_INTEGER(Ldr);
       break;
+    case kCheckedLoadWord64:
+      ASSEMBLE_CHECKED_LOAD_INTEGER_64(Ldr);
+      break;
     case kCheckedLoadFloat32:
       ASSEMBLE_CHECKED_LOAD_FLOAT(32);
       break;
     case kCheckedLoadFloat64:
       ASSEMBLE_CHECKED_LOAD_FLOAT(64);
       break;
     case kCheckedStoreWord8:
       ASSEMBLE_CHECKED_STORE_INTEGER(Strb);
       break;
     case kCheckedStoreWord16:
       ASSEMBLE_CHECKED_STORE_INTEGER(Strh);
       break;
     case kCheckedStoreWord32:
       ASSEMBLE_CHECKED_STORE_INTEGER(Str);
       break;
+    case kCheckedStoreWord64:
+      ASSEMBLE_CHECKED_STORE_INTEGER_64(Str);
+      break;
     case kCheckedStoreFloat32:
       ASSEMBLE_CHECKED_STORE_FLOAT(32);
       break;
     case kCheckedStoreFloat64:
       ASSEMBLE_CHECKED_STORE_FLOAT(64);
       break;
   }
 }  // NOLINT(readability/fn_size)
 
 
@@ skipping 396 matching lines @@
       padding_size -= kInstructionSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8