diff options
Diffstat (limited to 'tcg/tcg.h')
| -rw-r--r-- | tcg/tcg.h | 26 |
1 files changed, 18 insertions, 8 deletions
@@ -253,14 +253,24 @@ typedef int TCGv_i64; #define TCGV_UNUSED_I64(x) x = MAKE_TCGV_I64(-1) /* call flags */ -/* A pure function only reads its arguments and TCG global variables - and cannot raise exceptions. Hence a call to a pure function can be - safely suppressed if the return value is not used. */ -#define TCG_CALL_PURE 0x0010 -/* A const function only reads its arguments and does not use TCG - global variables. Hence a call to such a function does not - save TCG global variables back to their canonical location. */ -#define TCG_CALL_CONST 0x0020 +/* Helper does not read globals (either directly or through an exception). It + implies TCG_CALL_NO_WRITE_GLOBALS. */ +#define TCG_CALL_NO_READ_GLOBALS 0x0010 +/* Helper does not write globals */ +#define TCG_CALL_NO_WRITE_GLOBALS 0x0020 +/* Helper can be safely suppressed if the return value is not used. */ +#define TCG_CALL_NO_SIDE_EFFECTS 0x0040 + +/* convenience version of most used call flags */ +#define TCG_CALL_NO_RWG TCG_CALL_NO_READ_GLOBALS +#define TCG_CALL_NO_WG TCG_CALL_NO_WRITE_GLOBALS +#define TCG_CALL_NO_SE TCG_CALL_NO_SIDE_EFFECTS +#define TCG_CALL_NO_RWG_SE (TCG_CALL_NO_RWG | TCG_CALL_NO_SE) +#define TCG_CALL_NO_WG_SE (TCG_CALL_NO_WG | TCG_CALL_NO_SE) + +/* compatibility call flags, they should be eventually be removed */ +#define TCG_CALL_PURE TCG_CALL_NO_SIDE_EFFECTS +#define TCG_CALL_CONST TCG_CALL_NO_READ_GLOBALS /* used to align parameters */ #define TCG_CALL_DUMMY_TCGV MAKE_TCGV_I32(-1) |