From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35751) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YXXIh-0004ke-05 for qemu-devel@nongnu.org; Mon, 16 Mar 2015 11:51:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YXXIZ-00005Q-IL for qemu-devel@nongnu.org; Mon, 16 Mar 2015 11:51:30 -0400 Received: from mail-qc0-x232.google.com ([2607:f8b0:400d:c01::232]:34278) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YXXIZ-0008Vy-Bk for qemu-devel@nongnu.org; Mon, 16 Mar 2015 11:51:23 -0400 Received: by qcaz10 with SMTP id z10so47559824qca.1 for ; Mon, 16 Mar 2015 08:51:23 -0700 (PDT) Sender: Richard Henderson From: Richard Henderson Date: Mon, 16 Mar 2015 08:50:48 -0700 Message-Id: <1426521048-9128-2-git-send-email-rth@twiddle.net> In-Reply-To: <1426521048-9128-1-git-send-email-rth@twiddle.net> References: <1426521048-9128-1-git-send-email-rth@twiddle.net> Subject: [Qemu-devel] [PULL] tcg/optimize: Handle or r,a,a with constant a List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org As seen with ubuntu-5.10-live-powerpc.iso. Reported-by: Mark Cave-Ayland Tested-by: Mark Cave-Ayland Reviewed-by: Bastian Koppelmann Signed-off-by: Richard Henderson --- tcg/optimize.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tcg/optimize.c b/tcg/optimize.c index 067917c..37c1110 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -980,8 +980,11 @@ static void tcg_constant_folding(TCGContext *s) if (temps_are_copies(args[1], args[2])) { if (temps_are_copies(args[0], args[1])) { tcg_op_remove(s, op); - } else { + } else if (temps[args[1]].state != TCG_TEMP_CONST) { tcg_opt_gen_mov(s, op, args, opc, args[0], args[1]); + } else { + tcg_opt_gen_movi(s, op, args, opc, + args[0], temps[args[1]].val); } continue; } -- 2.1.0