From fc879703f74851e3e861894a0c4a6902877d0c2c Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Thu, 19 May 2022 23:59:07 +1000 Subject: [PATCH] tcg/ppc: Optimize memory ordering generation with lwsync lwsync orders more than just LD_LD, importantly it matches x86 and s390 default memory ordering. Signed-off-by: Nicholas Piggin Reviewed-by: Richard Henderson Message-Id: <20220519135908.21282-4-npiggin@gmail.com> Signed-off-by: Daniel Henrique Barboza --- tcg/ppc/tcg-target.c.inc | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc index 4750091c9c..de4483e43b 100644 --- a/tcg/ppc/tcg-target.c.inc +++ b/tcg/ppc/tcg-target.c.inc @@ -1832,11 +1832,14 @@ static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args, static void tcg_out_mb(TCGContext *s, TCGArg a0) { - uint32_t insn = HWSYNC; - a0 &= TCG_MO_ALL; - if (a0 == TCG_MO_LD_LD) { + uint32_t insn; + + if (a0 & TCG_MO_ST_LD) { + insn = HWSYNC; + } else { insn = LWSYNC; } + tcg_out32(s, insn); } -- 2.30.2