/* * Copyright (C) 2015 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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 with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef AirSpillEverything_h #define AirSpillEverything_h #if ENABLE(B3_JIT) namespace JSC { namespace B3 { namespace Air { class Code; // This is a phase for testing. It behaves like a register allocator in the sense that it // eliminates temporaries from the program. It accomplishes this by always spilling all // temporaries. The resulting code is going to be very inefficient. This phase is great if you // think that there is a bug in the register allocator. You can confirm this by running this // phase instead of the register allocator. // // Note that even though this phase does the cheapest thing possible, it's not even written in a // particularly efficient way. So, don't get any ideas about using this phase to reduce compiler // latency. If you wanted to do that, you should come up with a clever algorithm instead of using // this silly thing. void spillEverything(Code&); } } } // namespace JSC::B3::Air #endif // ENABLE(B3_JIT) #endif // AirSpillEverything_h