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authorRichard Henderson <rth@twiddle.net>2014-01-28 13:26:17 -0800
committerRichard Henderson <rth@twiddle.net>2014-02-17 10:12:29 -0600
commite64e958e202c563730159c52f7c9116c80ceca52 (patch)
treea267019fdf59786d6c8b3749044de169dceb2563 /tcg
parente201b56418a5bb6afadc42df16f94880c091fad4 (diff)
tcg/optimize: Optmize ANDC X,Y,Y to MOV X,0
Like we already do for SUB and XOR. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg')
-rw-r--r--tcg/optimize.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 0b1dd13a63..c1b9284600 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -947,6 +947,7 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr,
/* Simplify expression for "op r, a, a => movi r, 0" cases */
switch (op) {
+ CASE_OP_32_64(andc):
CASE_OP_32_64(sub):
CASE_OP_32_64(xor):
if (temps_are_copies(args[1], args[2])) {