[turbofan] Optimize division/modulus by constant.

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

Index: src/compiler/arm/code-generator-arm.cc
diff --git a/src/compiler/arm/code-generator-arm.cc b/src/compiler/arm/code-generator-arm.cc
index 6f8859b1064738bf44104ff1e17a0e7faa9ca56d..c21858762608f66d51201efe7e6e19773f5dff13 100644
--- a/src/compiler/arm/code-generator-arm.cc
+++ b/src/compiler/arm/code-generator-arm.cc
@@ -239,6 +239,15 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       DCHECK_EQ(LeaveCC, i.OutputSBit());
       break;
     }
+    case kArmSmmul:
+      __ smmul(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1));
+      DCHECK_EQ(LeaveCC, i.OutputSBit());
+      break;
+    case kArmSmmla:
+      __ smmla(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1),
+               i.InputRegister(2));
+      DCHECK_EQ(LeaveCC, i.OutputSBit());
+      break;
     case kArmSdiv: {
       CpuFeatureScope scope(masm(), SUDIV);
       __ sdiv(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1));