From 9d6a7a8542b17f5a98a60268d1c185bc81edb1a7 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 6 Aug 2014 12:11:25 -0700 Subject: tcg-sparc: Use ADDXC in setcond_i64 Similar to the ADDC tricks we use in setcond_i32. Signed-off-by: Richard Henderson --- tcg/sparc/tcg-target.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'tcg') diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c index 3b232d6333..d0bd08cb85 100644 --- a/tcg/sparc/tcg-target.c +++ b/tcg/sparc/tcg-target.c @@ -716,6 +716,23 @@ static void tcg_out_setcond_i32(TCGContext *s, TCGCond cond, TCGReg ret, static void tcg_out_setcond_i64(TCGContext *s, TCGCond cond, TCGReg ret, TCGReg c1, int32_t c2, int c2const) { + if (use_vis3_instructions) { + switch (cond) { + case TCG_COND_NE: + if (c2 != 0) { + break; + } + c2 = c1, c2const = 0, c1 = TCG_REG_G0; + /* FALLTHRU */ + case TCG_COND_LTU: + tcg_out_cmp(s, c1, c2, c2const); + tcg_out_arith(s, ret, TCG_REG_G0, TCG_REG_G0, ARITH_ADDXC); + return; + default: + break; + } + } + /* For 64-bit signed comparisons vs zero, we can avoid the compare if the input does not overlap the output. */ if (c2 == 0 && !is_unsigned_cond(cond) && c1 != ret) { -- cgit v1.2.1