[Atomics] use TFJ builtins for atomic add, sub, and, or, and xor

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/assembler-arm64-inl.h"
 #include "src/arm64/frames-arm64.h"
 #include "src/arm64/macro-assembler-arm64-inl.h"
 #include "src/compilation-info.h"
@@ skipping 538 matching lines @@
     __ Add(i.TempRegister(0), i.InputRegister(0), i.InputRegister(1));    \
     __ load_instr(i.OutputRegister32(), i.TempRegister(0));               \
     __ cmp(i.TempRegister32(1), i.OutputRegister32());                    \
     __ B(ne, &exit);                                                      \
     __ store_instr(i.TempRegister32(0), i.InputRegister32(3),             \
                    i.TempRegister(0));                                    \
     __ cbnz(i.TempRegister32(0), &compareExchange);                       \
     __ bind(&exit);                                                       \
   } while (0)
 
+#define ASSEMBLE_ATOMIC_BINOP(load_instr, store_instr, bin_instr)      \
+  do {                                                                 \
+    Label binop;                                                       \
+    __ Add(i.TempRegister(0), i.InputRegister(0), i.InputRegister(1)); \
+    __ bind(&binop);                                                   \
+    __ load_instr(i.OutputRegister32(), i.TempRegister(0));            \
+    __ bin_instr(i.TempRegister32(1), i.OutputRegister32(),            \
+                 Operand(i.InputRegister32(2)));                       \
+    __ store_instr(i.TempRegister32(1), i.TempRegister32(1),           \
+                   i.TempRegister(0));                                 \
+    __ cbnz(i.TempRegister32(1), &binop);                              \
+  } while (0)
+
 #define ASSEMBLE_IEEE754_BINOP(name)                                          \
   do {                                                                        \
     FrameScope scope(masm(), StackFrame::MANUAL);                             \
     __ CallCFunction(ExternalReference::ieee754_##name##_function(isolate()), \
                      0, 2);                                                   \
   } while (0)
 
 #define ASSEMBLE_IEEE754_UNOP(name)                                           \
   do {                                                                        \
     FrameScope scope(masm(), StackFrame::MANUAL);                             \
@@ skipping 1120 matching lines @@
       __ Sxth(i.OutputRegister(0), i.OutputRegister(0));
       break;
     case kAtomicCompareExchangeUint16:
       __ Uxth(i.TempRegister(1), i.InputRegister(2));
       ASSEMBLE_ATOMIC_COMPARE_EXCHANGE_INTEGER(ldaxrh, stlxrh);
       break;
     case kAtomicCompareExchangeWord32:
       __ mov(i.TempRegister(1), i.InputRegister(2));
       ASSEMBLE_ATOMIC_COMPARE_EXCHANGE_INTEGER(ldaxr, stlxr);
       break;
+#define ATOMIC_BINOP_CASE(op, inst)                    \
+  case kAtomic##op##Int8:                              \
+    ASSEMBLE_ATOMIC_BINOP(ldaxrb, stlxrb, inst);       \
+    __ Sxtb(i.OutputRegister(0), i.OutputRegister(0)); \
+    break;                                             \
+  case kAtomic##op##Uint8:                             \
+    ASSEMBLE_ATOMIC_BINOP(ldaxrb, stlxrb, inst);       \
+    break;                                             \
+  case kAtomic##op##Int16:                             \
+    ASSEMBLE_ATOMIC_BINOP(ldaxrh, stlxrh, inst);       \
+    __ Sxth(i.OutputRegister(0), i.OutputRegister(0)); \
+    break;                                             \
+  case kAtomic##op##Uint16:                            \
+    ASSEMBLE_ATOMIC_BINOP(ldaxrh, stlxrh, inst);       \
+    break;                                             \
+  case kAtomic##op##Word32:                            \
+    ASSEMBLE_ATOMIC_BINOP(ldaxr, stlxr, inst);         \
+    break;
+      ATOMIC_BINOP_CASE(Add, Add)
+      ATOMIC_BINOP_CASE(Sub, Sub)
+      ATOMIC_BINOP_CASE(And, And)
+      ATOMIC_BINOP_CASE(Or, Orr)
+      ATOMIC_BINOP_CASE(Xor, Eor)
+#undef ATOMIC_BINOP_CASE
   }
   return kSuccess;
 }  // NOLINT(readability/fn_size)
 
 
 // Assemble branches after this instruction.
 void CodeGenerator::AssembleArchBranch(Instruction* instr, BranchInfo* branch) {
   Arm64OperandConverter i(this, instr);
   Label* tlabel = branch->true_label;
   Label* flabel = branch->false_label;
@@ skipping 536 matching lines @@
       padding_size -= kInstructionSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8