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tcg: add tcg_invert_cond

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It is very handy to have a reliable mapping of a condition to its inverse.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Richard Henderson 2010-01-07 10:15:20 -08:00 committed by Aurelien Jarno
parent be210acb41
commit 401d466da9
1 changed files with 5 additions and 0 deletions
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5
tcg/tcg.h
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@ -205,6 +205,11 @@ typedef enum {
TCG_COND_GTU,
} TCGCond;
static inline TCGCond tcg_invert_cond(TCGCond c)
{
return (TCGCond)(c ^ 1);
}
static inline TCGCond tcg_unsigned_cond(TCGCond c)
{
return (c >= TCG_COND_LT && c <= TCG_COND_GT ? c + 4 : c);