commit 38ee188b1b63606191c013046add021bdc6f1bfd
author Aurelien Jarno <aurelien@aurel32.net> Thu Sep 06 16:47:14 2012 +0200
committer Aurelien Jarno <aurelien@aurel32.net> Tue Sep 11 18:05:56 2012 +0200
tree 0569a86688a72d7bcf5cb469f3bdb21912cd3280
parent 56e4943825e70a45d1fbba4fffa431000c6e1c7a

tcg/optimize: simplify or/xor r, a, 0 cases

or/xor r, a, 0 is equivalent to a mov r, a.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

tcg/optimize.c

diff --git a/tcg/optimize.c b/tcg/optimize.c
index 63f970d..0db849e 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -331,6 +331,8 @@
         CASE_OP_32_64(sar):
         CASE_OP_32_64(rotl):
         CASE_OP_32_64(rotr):
+        CASE_OP_32_64(or):
+        CASE_OP_32_64(xor):
             if (temps[args[1]].state == TCG_TEMP_CONST) {
                 /* Proceed with possible constant folding. */
                 break;