diff options
Diffstat (limited to '')
| -rw-r--r-- | tcg/tcg-op.c | 18 |
1 files changed, 2 insertions, 16 deletions
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c index de096a6f93..aa6bc6f57d 100644 --- a/tcg/tcg-op.c +++ b/tcg/tcg-op.c @@ -372,12 +372,7 @@ void tcg_gen_subfi_i32(TCGv_i32 ret, int32_t arg1, TCGv_i32 arg2) void tcg_gen_subi_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2) { - /* some cases can be optimized here */ - if (arg2 == 0) { - tcg_gen_mov_i32(ret, arg1); - } else { - tcg_gen_sub_i32(ret, arg1, tcg_constant_i32(arg2)); - } + tcg_gen_addi_i32(ret, arg1, -arg2); } void tcg_gen_neg_i32(TCGv_i32 ret, TCGv_i32 arg) @@ -1752,16 +1747,7 @@ void tcg_gen_subfi_i64(TCGv_i64 ret, int64_t arg1, TCGv_i64 arg2) void tcg_gen_subi_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2) { - /* some cases can be optimized here */ - if (arg2 == 0) { - tcg_gen_mov_i64(ret, arg1); - } else if (TCG_TARGET_REG_BITS == 64) { - tcg_gen_sub_i64(ret, arg1, tcg_constant_i64(arg2)); - } else { - tcg_gen_sub2_i32(TCGV_LOW(ret), TCGV_HIGH(ret), - TCGV_LOW(arg1), TCGV_HIGH(arg1), - tcg_constant_i32(arg2), tcg_constant_i32(arg2 >> 32)); - } + tcg_gen_addi_i64(ret, arg1, -arg2); } void tcg_gen_neg_i64(TCGv_i64 ret, TCGv_i64 arg) |