From 2cb4764577f270eec259123955a6396ad6a2f161 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 23 Jan 2013 13:49:43 -0800 Subject: target-i386: optimize setbe This is looking at EFLAGS, but it can do so more efficiently with setcond. Reviewed-by: Blue Swirl Signed-off-by: Paolo Bonzini Signed-off-by: Richard Henderson --- target-i386/translate.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/target-i386/translate.c b/target-i386/translate.c index c510732..dab6983 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -1060,10 +1060,9 @@ static void gen_setcc_slow(DisasContext *s, int jcc_op, TCGv reg, bool inv) break; case JCC_BE: gen_compute_eflags(s); - tcg_gen_shri_tl(reg, cpu_cc_src, 6); - tcg_gen_or_tl(reg, reg, cpu_cc_src); - tcg_gen_andi_tl(reg, reg, 1); - break; + tcg_gen_andi_tl(reg, cpu_cc_src, CC_Z | CC_C); + tcg_gen_setcondi_tl(inv ? TCG_COND_EQ : TCG_COND_NE, reg, reg, 0); + return; case JCC_S: gen_compute_eflags_s(s, reg, inv); inv = false; -- cgit v1.1