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 7 namespace v8 { 8 namespace internal { 9 10 double ClobberDoubleRegisters(double x1, double x2, double x3, double x4) { 11 // TODO(ulan): This clobbers only subset of registers depending on compiler, 12 // Rewrite this in assembly to really clobber all registers. 13 // GCC for ia32 uses the FPU and does not touch XMM registers. 14 return x1 * 1.01 + x2 * 2.02 + x3 * 3.03 + x4 * 4.04; 15 } 16 17 } // namespace internal 18 } // namespace v8 19
