From 4b2b114d8cc0f0f59bc20855bf287fb3df55b553 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 28 Aug 2013 15:51:08 -0700 Subject: tcg-ppc: Avoid code for nop move While these are rare from code that's been through the optimizer, it's not uncommon within the tcg backend. Signed-off-by: Richard Henderson --- tcg/ppc/tcg-target.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'tcg/ppc') diff --git a/tcg/ppc/tcg-target.c b/tcg/ppc/tcg-target.c index 24a8621fe1..965108b8bd 100644 --- a/tcg/ppc/tcg-target.c +++ b/tcg/ppc/tcg-target.c @@ -450,7 +450,9 @@ static const uint32_t tcg_to_bc[] = { static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg) { - tcg_out32 (s, OR | SAB (arg, ret, arg)); + if (ret != arg) { + tcg_out32(s, OR | SAB(arg, ret, arg)); + } } static void tcg_out_movi(TCGContext *s, TCGType type, -- cgit v1.2.3