diff options
| author | Richard Henderson <rth@twiddle.net> | 2015-07-24 07:16:00 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2015-08-24 11:10:54 -0700 |
| commit | 609ad70562793937257c89d07bf7c1370b9fc9aa (patch) | |
| tree | fd10a7febb6cfe6934d301b2b2dc7b675bade774 /tcg/optimize.c | |
| parent | 870ad1547ac53bc79c21d86cf453b3b20cc660a2 (diff) | |
tcg: Split trunc_shr_i32 opcode into extr[lh]_i64_i32
Rather than allow arbitrary shift+trunc, only concern ourselves
with low and high parts. This is all that was being used anyway.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg/optimize.c')
| -rw-r--r-- | tcg/optimize.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/tcg/optimize.c b/tcg/optimize.c index 18046051d3..10795ec9d5 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -288,7 +288,6 @@ static TCGArg do_constant_folding_2(TCGOpcode op, TCGArg x, TCGArg y) case INDEX_op_shr_i32: return (uint32_t)x >> (y & 31); - case INDEX_op_trunc_shr_i64_i32: case INDEX_op_shr_i64: return (uint64_t)x >> (y & 63); @@ -348,9 +347,13 @@ static TCGArg do_constant_folding_2(TCGOpcode op, TCGArg x, TCGArg y) return (int32_t)x; case INDEX_op_extu_i32_i64: + case INDEX_op_extrl_i64_i32: case INDEX_op_ext32u_i64: return (uint32_t)x; + case INDEX_op_extrh_i64_i32: + return (uint64_t)x >> 32; + case INDEX_op_muluh_i32: return ((uint64_t)(uint32_t)x * (uint32_t)y) >> 32; case INDEX_op_mulsh_i32: @@ -885,8 +888,11 @@ void tcg_optimize(TCGContext *s) } break; - case INDEX_op_trunc_shr_i64_i32: - mask = (uint64_t)temps[args[1]].mask >> args[2]; + case INDEX_op_extrl_i64_i32: + mask = (uint32_t)temps[args[1]].mask; + break; + case INDEX_op_extrh_i64_i32: + mask = (uint64_t)temps[args[1]].mask >> 32; break; CASE_OP_32_64(shl): @@ -1028,6 +1034,8 @@ void tcg_optimize(TCGContext *s) case INDEX_op_ext32u_i64: case INDEX_op_ext_i32_i64: case INDEX_op_extu_i32_i64: + case INDEX_op_extrl_i64_i32: + case INDEX_op_extrh_i64_i32: if (temp_is_const(args[1])) { tmp = do_constant_folding(opc, temps[args[1]].val, 0); tcg_opt_gen_movi(s, op, args, args[0], tmp); @@ -1035,14 +1043,6 @@ void tcg_optimize(TCGContext *s) } goto do_default; - case INDEX_op_trunc_shr_i64_i32: - if (temp_is_const(args[1])) { - tmp = do_constant_folding(opc, temps[args[1]].val, args[2]); - tcg_opt_gen_movi(s, op, args, args[0], tmp); - break; - } - goto do_default; - CASE_OP_32_64(add): CASE_OP_32_64(sub): CASE_OP_32_64(mul): |