From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:59161) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TF98n-0008Br-6g for qemu-devel@nongnu.org; Fri, 21 Sep 2012 15:43:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TF98h-0002ld-5N for qemu-devel@nongnu.org; Fri, 21 Sep 2012 15:43:57 -0400 Received: from hall.aurel32.net ([88.191.126.93]:43258) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TF98g-0002k8-SK for qemu-devel@nongnu.org; Fri, 21 Sep 2012 15:43:51 -0400 From: Aurelien Jarno Date: Fri, 21 Sep 2012 21:43:13 +0200 Message-Id: <1348256598-8146-6-git-send-email-aurelien@aurel32.net> In-Reply-To: <1348256598-8146-1-git-send-email-aurelien@aurel32.net> References: <1348256598-8146-1-git-send-email-aurelien@aurel32.net> Subject: [Qemu-devel] [PATCH v2 05/10] tcg/optimize: optimize "op r, a, a => mov r, a" List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Aurelien Jarno Now that we can easily detect all copies, we can optimize the "op r, a, a => mov r, a" case a bit more. Reviewed-by: Richard Henderson Signed-off-by: Aurelien Jarno --- tcg/optimize.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tcg/optimize.c b/tcg/optimize.c index aeb2225..b9a7da9 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -524,7 +524,7 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr, switch (op) { CASE_OP_32_64(or): CASE_OP_32_64(and): - if (args[1] == args[2]) { + if (temps_are_copies(args[1], args[2])) { if (temps_are_copies(args[0], args[1])) { gen_opc_buf[op_index] = INDEX_op_nop; } else { -- 1.7.10.4