Emit VMLA for multiply-add on ARM

src/ia32/lithium-codegen-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1241 matching lines @@
     } else {
       // Test the non-zero operand for negative sign.
       __ or_(ToRegister(instr->temp()), ToOperand(right));
       DeoptimizeIf(sign, instr->environment());
     }
     __ bind(&done);
   }
 }
 
 
+void LCodeGen::DoMultiplyAddD(LMultiplyAddD* instr) {
+  XMMRegister a = ToDoubleRegister(instr->a());
+  XMMRegister b = ToDoubleRegister(instr->b());
+  XMMRegister c = ToDoubleRegister(instr->c());
+
+  // This is computed in-place.
+  ASSERT(a.is(ToDoubleRegister(instr->result())));
+
+  __ mulsd(a, b);
+  __ addsd(a, c);
+}
+
+
 void LCodeGen::DoBitI(LBitI* instr) {
   LOperand* left = instr->left();
   LOperand* right = instr->right();
   ASSERT(left->Equals(instr->result()));
   ASSERT(left->IsRegister());
 
   if (right->IsConstantOperand()) {
     int right_operand = ToInteger32(LConstantOperand::cast(right));
     switch (instr->op()) {
       case Token::BIT_AND:
@@ skipping 4303 matching lines @@
                               FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32