[wasm] Add ProtectedStore instruction

src/compiler/x64/code-generator-x64.cc

 // Copyright 2013 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 <limits>
 
 #include "src/compilation-info.h"
 #include "src/compiler/code-generator-impl.h"
@@ skipping 284 matching lines @@
     __ CallRuntime(Runtime::kThrowWasmError);
   }
 
  private:
   Address pc_;
   bool frame_elided_;
   Register context_;
   int32_t position_;
 };
 
+void EmitOOLTrapIfNeeded(Zone* zone, CodeGenerator* codegen,
+                         InstructionCode opcode, X64OperandConverter& i,
+                         Address pc) {
+  X64MemoryProtection protection =
+      static_cast<X64MemoryProtection>(MiscField::decode(opcode));
+  if (protection == X64MemoryProtection::kProtected) {
+    bool frame_elided = !codegen->frame_access_state()->has_frame();
+    new (zone) WasmOutOfLineTrap(codegen, pc, frame_elided, i.InputRegister(2),
+                                 i.InputInt32(3));
+  }
+}
 }  // namespace
 
 
 #define ASSEMBLE_UNOP(asm_instr)         \
   do {                                   \
     if (instr->Output()->IsRegister()) { \
       __ asm_instr(i.OutputRegister());  \
     } else {                             \
       __ asm_instr(i.OutputOperand());   \
     }                                    \
@@ skipping 1517 matching lines @@
                   i.InputOperand(0));
       }
       break;
     }
     case kSSEFloat64SilenceNaN:
       __ Xorpd(kScratchDoubleReg, kScratchDoubleReg);
       __ Subsd(i.InputDoubleRegister(0), kScratchDoubleReg);
       break;
     case kX64Movsxbl:
       ASSEMBLE_MOVX(movsxbl);
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       __ AssertZeroExtended(i.OutputRegister());
       break;
     case kX64Movzxbl:
       ASSEMBLE_MOVX(movzxbl);
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       __ AssertZeroExtended(i.OutputRegister());
       break;
     case kX64Movsxbq:
       ASSEMBLE_MOVX(movsxbq);
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       break;
     case kX64Movzxbq:
       ASSEMBLE_MOVX(movzxbq);
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       __ AssertZeroExtended(i.OutputRegister());
       break;
     case kX64Movb: {
       size_t index = 0;
       Operand operand = i.MemoryOperand(&index);
       if (HasImmediateInput(instr, index)) {
         __ movb(operand, Immediate(i.InputInt8(index)));
       } else {
         __ movb(operand, i.InputRegister(index));
       }
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       break;
     }
     case kX64Movsxwl:
       ASSEMBLE_MOVX(movsxwl);
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       __ AssertZeroExtended(i.OutputRegister());
       break;
     case kX64Movzxwl:
       ASSEMBLE_MOVX(movzxwl);
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       __ AssertZeroExtended(i.OutputRegister());
       break;
     case kX64Movsxwq:
       ASSEMBLE_MOVX(movsxwq);
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       break;
     case kX64Movzxwq:
       ASSEMBLE_MOVX(movzxwq);
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       __ AssertZeroExtended(i.OutputRegister());
       break;
     case kX64Movw: {
       size_t index = 0;
       Operand operand = i.MemoryOperand(&index);
       if (HasImmediateInput(instr, index)) {
         __ movw(operand, Immediate(i.InputInt16(index)));
       } else {
         __ movw(operand, i.InputRegister(index));
       }
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       break;
     }
     case kX64Movl:
-    case kX64TrapMovl:
       if (instr->HasOutput()) {
         if (instr->addressing_mode() == kMode_None) {
           if (instr->InputAt(0)->IsRegister()) {
             __ movl(i.OutputRegister(), i.InputRegister(0));
           } else {
             __ movl(i.OutputRegister(), i.InputOperand(0));
           }
         } else {
-          Address pc = __ pc();
           __ movl(i.OutputRegister(), i.MemoryOperand());
-
-          if (arch_opcode == kX64TrapMovl) {
-            bool frame_elided = !frame_access_state()->has_frame();
-            new (zone()) WasmOutOfLineTrap(this, pc, frame_elided,
-                                           i.InputRegister(2), i.InputInt32(3));
-          }
         }
+        EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
         __ AssertZeroExtended(i.OutputRegister());
       } else {
         size_t index = 0;
         Operand operand = i.MemoryOperand(&index);
         if (HasImmediateInput(instr, index)) {
           __ movl(operand, i.InputImmediate(index));
         } else {
           __ movl(operand, i.InputRegister(index));
         }
+        EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       }
       break;
     case kX64Movsxlq:
       ASSEMBLE_MOVX(movsxlq);
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       break;
     case kX64Movq:
       if (instr->HasOutput()) {
         __ movq(i.OutputRegister(), i.MemoryOperand());
       } else {
         size_t index = 0;
         Operand operand = i.MemoryOperand(&index);
         if (HasImmediateInput(instr, index)) {
           __ movq(operand, i.InputImmediate(index));
         } else {
           __ movq(operand, i.InputRegister(index));
         }
       }
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       break;
     case kX64Movss:
       if (instr->HasOutput()) {
         __ movss(i.OutputDoubleRegister(), i.MemoryOperand());
       } else {
         size_t index = 0;
         Operand operand = i.MemoryOperand(&index);
         __ movss(operand, i.InputDoubleRegister(index));
       }
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       break;
     case kX64Movsd:
       if (instr->HasOutput()) {
         __ Movsd(i.OutputDoubleRegister(), i.MemoryOperand());
       } else {
         size_t index = 0;
         Operand operand = i.MemoryOperand(&index);
         __ Movsd(operand, i.InputDoubleRegister(index));
       }
+      EmitOOLTrapIfNeeded(zone(), this, opcode, i, __ pc());
       break;
     case kX64BitcastFI:
       if (instr->InputAt(0)->IsFPStackSlot()) {
         __ movl(i.OutputRegister(), i.InputOperand(0));
       } else {
         __ Movd(i.OutputRegister(), i.InputDoubleRegister(0));
       }
       break;
     case kX64BitcastDL:
       if (instr->InputAt(0)->IsFPStackSlot()) {
@@ skipping 814 matching lines @@
     int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc;
     __ Nop(padding_size);
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8