From 1c086220a6679948c9e9084829e302568548e3a2 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Tue, 9 Feb 2010 12:33:09 -0800 Subject: tcg: Add tcg_swap_cond. Returns the condition as if with swapped comparison operands. Signed-off-by: Richard Henderson Signed-off-by: Blue Swirl --- tcg/tcg.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'tcg/tcg.h') diff --git a/tcg/tcg.h b/tcg/tcg.h index b218abeaf2..563eccd390 100644 --- a/tcg/tcg.h +++ b/tcg/tcg.h @@ -205,11 +205,19 @@ typedef enum { TCG_COND_GTU, } TCGCond; +/* Invert the sense of the comparison. */ static inline TCGCond tcg_invert_cond(TCGCond c) { return (TCGCond)(c ^ 1); } +/* Swap the operands in a comparison. */ +static inline TCGCond tcg_swap_cond(TCGCond c) +{ + int mask = (c < TCG_COND_LT ? 0 : c < TCG_COND_LTU ? 7 : 15); + return (TCGCond)(c ^ mask); +} + static inline TCGCond tcg_unsigned_cond(TCGCond c) { return (c >= TCG_COND_LT && c <= TCG_COND_GT ? c + 4 : c); -- cgit v1.2.3