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authorRichard Henderson <rth@twiddle.net>2011-08-17 14:11:47 -0700
committerBlue Swirl <blauwirbel@gmail.com>2011-08-21 18:52:25 +0000
commitcb25c80a9b8324c59aa157c4e9cfe296489d0b9c (patch)
treef072771f999a655ebfbc9cd9105a80be401b7875 /tcg
parent25c4d9cc845fb58f624dae8c0f690e20c70e7a1d (diff)
tcg: Constant fold neg, andc, orc, eqv, nand, nor.
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'tcg')
-rw-r--r--tcg/optimize.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 32f928f980..7e7f2b2020 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -215,6 +215,24 @@ static TCGArg do_constant_folding_2(int op, TCGArg x, TCGArg y)
CASE_OP_32_64(not):
return ~x;
+ CASE_OP_32_64(neg):
+ return -x;
+
+ CASE_OP_32_64(andc):
+ return x & ~y;
+
+ CASE_OP_32_64(orc):
+ return x | ~y;
+
+ CASE_OP_32_64(eqv):
+ return ~(x ^ y);
+
+ CASE_OP_32_64(nand):
+ return ~(x & y);
+
+ CASE_OP_32_64(nor):
+ return ~(x | y);
+
CASE_OP_32_64(ext8s):
return (int8_t)x;
@@ -290,6 +308,9 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr,
CASE_OP_32_64(and):
CASE_OP_32_64(or):
CASE_OP_32_64(xor):
+ CASE_OP_32_64(eqv):
+ CASE_OP_32_64(nand):
+ CASE_OP_32_64(nor):
if (temps[args[1]].state == TCG_TEMP_CONST) {
tmp = args[1];
args[1] = args[2];
@@ -389,6 +410,7 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr,
args += 2;
break;
CASE_OP_32_64(not):
+ CASE_OP_32_64(neg):
CASE_OP_32_64(ext8s):
CASE_OP_32_64(ext8u):
CASE_OP_32_64(ext16s):
@@ -421,6 +443,11 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr,
CASE_OP_32_64(sar):
CASE_OP_32_64(rotl):
CASE_OP_32_64(rotr):
+ CASE_OP_32_64(andc):
+ CASE_OP_32_64(orc):
+ CASE_OP_32_64(eqv):
+ CASE_OP_32_64(nand):
+ CASE_OP_32_64(nor):
if (temps[args[1]].state == TCG_TEMP_CONST
&& temps[args[2]].state == TCG_TEMP_CONST) {
gen_opc_buf[op_index] = op_to_movi(op);