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/* -*- mesa-c++ -*-
*
* Copyright (c) 2018-2019 Collabora LTD
*
* Author: Gert Wollny <gert.wollny@collabora.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SFN_CONDITIONALJUMPTRACKER_H
#define SFN_CONDITIONALJUMPTRACKER_H
#include "gallium/drivers/r600/r600_asm.h"
namespace r600 {
enum JumpType {
jt_loop,
jt_if
};
/**
Class to link the jump locations
*/
class ConditionalJumpTracker
{
public:
ConditionalJumpTracker();
~ConditionalJumpTracker();
/* Mark the start of a loop or a if/else */
void push(r600_bytecode_cf *start, JumpType type);
/* Mark the end of a loop or a if/else and fixup the jump sites */
bool pop(r600_bytecode_cf *final, JumpType type);
/* Add middle sites to the call frame i.e. continue,
* break inside loops, and else in if-then-else constructs.
*/
bool add_mid(r600_bytecode_cf *source, JumpType type);
private:
struct ConditionalJumpTrackerImpl * impl;
};
}
#endif // SFN_CONDITIONALJUMPTRACKER_H
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