From fd84ea2391c044a7840c25dd35336bdaf2a302d0 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 10 Oct 2012 09:02:43 -0700 Subject: [PATCH] tcg-sparc: Optimize setcond2 equality compare with 0. Signed-off-by: Richard Henderson Signed-off-by: Blue Swirl --- tcg/sparc/tcg-target.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c index f7d52d63e2..9c87cb632a 100644 --- a/tcg/sparc/tcg-target.c +++ b/tcg/sparc/tcg-target.c @@ -693,9 +693,18 @@ static void tcg_out_setcond2_i32(TCGContext *s, TCGCond cond, TCGArg ret, switch (cond) { case TCG_COND_EQ: case TCG_COND_NE: - tcg_out_setcond_i32(s, cond, tmp, al, bl, blconst); - tcg_out_cmp(s, ah, bh, bhconst); - tcg_out_mov(s, TCG_TYPE_I32, ret, tmp); + if (bl == 0 && bh == 0) { + if (cond == TCG_COND_EQ) { + tcg_out_arith(s, TCG_REG_G0, al, ah, ARITH_ORCC); + tcg_out_movi(s, TCG_TYPE_I32, ret, 1); + } else { + tcg_out_arith(s, ret, al, ah, ARITH_ORCC); + } + } else { + tcg_out_setcond_i32(s, cond, tmp, al, bl, blconst); + tcg_out_cmp(s, ah, bh, bhconst); + tcg_out_mov(s, TCG_TYPE_I32, ret, tmp); + } tcg_out_movcc(s, TCG_COND_NE, MOVCC_ICC, ret, cond == TCG_COND_NE, 1); break;