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 | |