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tcg: Add markup for output requires new register

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This is the same concept as, and same markup as, the
early clobber markup in gcc.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2016-11-18 08:35:03 +01:00
parent 333b21b809
commit 82790a8709
2 changed files with 23 additions and 12 deletions
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tcg/tcg.h
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@ -851,6 +851,7 @@ void tcg_dump_op_count(FILE *f, fprintf_function cpu_fprintf);
#define TCG_CT_ALIAS 0x80
#define TCG_CT_IALIAS 0x40
#define TCG_CT_NEWREG 0x20 /* output requires a new register */
#define TCG_CT_REG 0x01
#define TCG_CT_CONST 0x02 /* any constant of register size */