[turbofan] ARM64 support for multiply-accumulate

src/compiler/arm64/code-generator-arm64.cc

Index: src/compiler/arm64/code-generator-arm64.cc
diff --git a/src/compiler/arm64/code-generator-arm64.cc b/src/compiler/arm64/code-generator-arm64.cc
index a842a6ab8494d3dfeab70fa166ef6f1528381c80..a56de204b7163776172db42b9b1ace442001c59a 100644
--- a/src/compiler/arm64/code-generator-arm64.cc
+++ b/src/compiler/arm64/code-generator-arm64.cc
@@ -204,6 +204,28 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
     case kArm64Mul32:
       __ Mul(i.OutputRegister32(), i.InputRegister32(0), i.InputRegister32(1));
       break;
+    case kArm64Madd:
+      __ Madd(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1),
+              i.InputRegister(2));
+      break;
+    case kArm64Madd32:
+      __ Madd(i.OutputRegister32(), i.InputRegister32(0), i.InputRegister32(1),
+              i.InputRegister32(2));
+      break;
+    case kArm64Msub:
+      __ Msub(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1),
+              i.InputRegister(2));
+      break;
+    case kArm64Msub32:
+      __ Msub(i.OutputRegister32(), i.InputRegister32(0), i.InputRegister32(1),
+              i.InputRegister32(2));
+      break;
+    case kArm64Mneg:
+      __ Mneg(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1));
+      break;
+    case kArm64Mneg32:
+      __ Mneg(i.OutputRegister32(), i.InputRegister32(0), i.InputRegister32(1));
+      break;
     case kArm64Idiv:
       __ Sdiv(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1));
       break;