1 // Copyright 2013 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "src/arguments.h" 6 #include "src/objects-inl.h" 7 8 namespace v8 { 9 namespace internal { 10 11 double ClobberDoubleRegisters(double x1, double x2, double x3, double x4) { 12 // TODO(ulan): This clobbers only subset of registers depending on compiler, 13 // Rewrite this in assembly to really clobber all registers. 14 // GCC for ia32 uses the FPU and does not touch XMM registers. 15 return x1 * 1.01 + x2 * 2.02 + x3 * 3.03 + x4 * 4.04; 16 } 17 18 } // namespace internal 19 } // namespace v8 20
