1 From e38329760e40a354e37d11c7f5d8c86cdb90736c Mon Sep 17 00:00:00 2001
2 From: Aurelien Jarno <aurelien@aurel32.net>
3 Date: Tue, 18 Sep 2012 19:11:32 +0200
4 Subject: [PATCH] tcg/optimize: optimize "op r, a, a => mov r, a"
6 Now that we can easily detect all copies, we can optimize the
7 "op r, a, a => mov r, a" case a bit more.
9 Reviewed-by: Richard Henderson <rth@twiddle.net>
10 Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
11 Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
14 1 file changed, 1 insertion(+), 1 deletion(-)
16 diff --git a/tcg/optimize.c b/tcg/optimize.c
17 index aeb2225..b9a7da9 100644
20 @@ -524,7 +524,7 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr,
24 - if (args[1] == args[2]) {
25 + if (temps_are_copies(args[1], args[2])) {
26 if (temps_are_copies(args[0], args[1])) {
27 gen_opc_buf[op_index] = INDEX_op_nop;