diff options
Diffstat (limited to 'tcg/tcg-op.h')
| -rw-r--r-- | tcg/tcg-op.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h index 82aebb3219..be504643c3 100644 --- a/tcg/tcg-op.h +++ b/tcg/tcg-op.h @@ -252,7 +252,12 @@ static inline void tcg_gen_add_i32(TCGv ret, TCGv arg1, TCGv arg2) static inline void tcg_gen_addi_i32(TCGv ret, TCGv arg1, int32_t arg2) { - tcg_gen_add_i32(ret, arg1, tcg_const_i32(arg2)); + /* some cases can be optimized here */ + if (arg2 == 0) { + tcg_gen_mov_i32(ret, arg1); + } else { + tcg_gen_add_i32(ret, arg1, tcg_const_i32(arg2)); + } } static inline void tcg_gen_sub_i32(TCGv ret, TCGv arg1, TCGv arg2) @@ -262,7 +267,12 @@ static inline void tcg_gen_sub_i32(TCGv ret, TCGv arg1, TCGv arg2) static inline void tcg_gen_subi_i32(TCGv ret, TCGv arg1, int32_t arg2) { - tcg_gen_sub_i32(ret, arg1, tcg_const_i32(arg2)); + /* some cases can be optimized here */ + if (arg2 == 0) { + tcg_gen_mov_i32(ret, arg1); + } else { + tcg_gen_sub_i32(ret, arg1, tcg_const_i32(arg2)); + } } static inline void tcg_gen_and_i32(TCGv ret, TCGv arg1, TCGv arg2) @@ -291,7 +301,7 @@ static inline void tcg_gen_ori_i32(TCGv ret, TCGv arg1, int32_t arg2) { /* some cases can be optimized here */ if (arg2 == 0xffffffff) { - tcg_gen_movi_i32(ret, 0); + tcg_gen_movi_i32(ret, 0xffffffff); } else if (arg2 == 0) { tcg_gen_mov_i32(ret, arg1); } else { |