diff options
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/arm/tcg-target.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c index de8465bc49..6c7113b471 100644 --- a/tcg/arm/tcg-target.c +++ b/tcg/arm/tcg-target.c @@ -1625,8 +1625,17 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, args[0], args[1], args[2], const_args[2]); break; case INDEX_op_sub_i32: - tcg_out_dat_rIN(s, COND_AL, ARITH_SUB, ARITH_ADD, - args[0], args[1], args[2], const_args[2]); + if (const_args[1]) { + if (const_args[2]) { + tcg_out_movi32(s, COND_AL, args[0], args[1] - args[2]); + } else { + tcg_out_dat_rI(s, COND_AL, ARITH_RSB, + args[0], args[2], args[1], 1); + } + } else { + tcg_out_dat_rIN(s, COND_AL, ARITH_SUB, ARITH_ADD, + args[0], args[1], args[2], const_args[2]); + } break; case INDEX_op_and_i32: tcg_out_dat_rIK(s, COND_AL, ARITH_AND, ARITH_BIC, @@ -1819,7 +1828,7 @@ static const TCGTargetOpDef arm_op_defs[] = { /* TODO: "r", "r", "ri" */ { INDEX_op_add_i32, { "r", "r", "rIN" } }, - { INDEX_op_sub_i32, { "r", "r", "rIN" } }, + { INDEX_op_sub_i32, { "r", "rI", "rIN" } }, { INDEX_op_mul_i32, { "r", "r", "r" } }, { INDEX_op_mulu2_i32, { "r", "r", "r", "r" } }, { INDEX_op_muls2_i32, { "r", "r", "r", "r" } }, |