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/*
* Tiny Code Generator for QEMU
*
* Copyright (c) 2008 Fabrice Bellard
*
* 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 the rights
* to use, copy, modify, merge, publish, distribute, sublicense, 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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 TCG_MO_H
#define TCG_MO_H
typedef enum {
/* Used to indicate the type of accesses on which ordering
is to be ensured. Modeled after SPARC barriers.
This is of the form TCG_MO_A_B where A is before B in program order.
*/
TCG_MO_LD_LD = 0x01,
TCG_MO_ST_LD = 0x02,
TCG_MO_LD_ST = 0x04,
TCG_MO_ST_ST = 0x08,
TCG_MO_ALL = 0x0F, /* OR of the above */
/* Used to indicate the kind of ordering which is to be ensured by the
instruction. These types are derived from x86/aarch64 instructions.
It should be noted that these are different from C11 semantics. */
TCG_BAR_LDAQ = 0x10, /* Following ops will not come forward */
TCG_BAR_STRL = 0x20, /* Previous ops will not be delayed */
TCG_BAR_SC = 0x30, /* No ops cross barrier; OR of the above */
} TCGBar;
#endif /* TCG_MO_H */
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