diff options
Diffstat (limited to 'tcg/aarch64/tcg-target.c')
| -rw-r--r-- | tcg/aarch64/tcg-target.c | 48 |
1 files changed, 30 insertions, 18 deletions
diff --git a/tcg/aarch64/tcg-target.c b/tcg/aarch64/tcg-target.c index ff626eb837..2aa9f75a25 100644 --- a/tcg/aarch64/tcg-target.c +++ b/tcg/aarch64/tcg-target.c @@ -186,11 +186,14 @@ enum aarch64_ldst_op_type { /* type of operation */ }; enum aarch64_arith_opc { - ARITH_ADD = 0x0b, - ARITH_SUB = 0x4b, ARITH_AND = 0x0a, + ARITH_ADD = 0x0b, ARITH_OR = 0x2a, - ARITH_XOR = 0x4a + ARITH_ADDS = 0x2b, + ARITH_XOR = 0x4a, + ARITH_SUB = 0x4b, + ARITH_ANDS = 0x6a, + ARITH_SUBS = 0x6b, }; enum aarch64_srr_opc { @@ -394,12 +397,20 @@ static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg, } static inline void tcg_out_arith(TCGContext *s, enum aarch64_arith_opc opc, - int ext, TCGReg rd, TCGReg rn, TCGReg rm) + int ext, TCGReg rd, TCGReg rn, TCGReg rm, + int shift_imm) { /* Using shifted register arithmetic operations */ - /* if extended registry operation (64bit) just OR with 0x80 << 24 */ - unsigned int base = ext ? (0x80 | opc) << 24 : opc << 24; - tcg_out32(s, base | rm << 16 | rn << 5 | rd); + /* if extended register operation (64bit) just OR with 0x80 << 24 */ + unsigned int shift, base = ext ? (0x80 | opc) << 24 : opc << 24; + if (shift_imm == 0) { + shift = 0; + } else if (shift_imm > 0) { + shift = shift_imm << 10 | 1 << 22; + } else /* (shift_imm < 0) */ { + shift = (-shift_imm) << 10; + } + tcg_out32(s, base | rm << 16 | shift | rn << 5 | rd); } static inline void tcg_out_mul(TCGContext *s, int ext, @@ -482,11 +493,11 @@ static inline void tcg_out_rotl(TCGContext *s, int ext, tcg_out_extr(s, ext, rd, rn, rn, bits - (m & max)); } -static inline void tcg_out_cmp(TCGContext *s, int ext, TCGReg rn, TCGReg rm) +static inline void tcg_out_cmp(TCGContext *s, int ext, TCGReg rn, TCGReg rm, + int shift_imm) { /* Using CMP alias SUBS wzr, Wn, Wm */ - unsigned int base = ext ? 0xeb00001f : 0x6b00001f; - tcg_out32(s, base | rm << 16 | rn << 5); + tcg_out_arith(s, ARITH_SUBS, ext, TCG_REG_XZR, rn, rm, shift_imm); } static inline void tcg_out_cset(TCGContext *s, int ext, TCGReg rd, TCGCond c) @@ -830,31 +841,31 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, case INDEX_op_add_i64: ext = 1; /* fall through */ case INDEX_op_add_i32: - tcg_out_arith(s, ARITH_ADD, ext, args[0], args[1], args[2]); + tcg_out_arith(s, ARITH_ADD, ext, args[0], args[1], args[2], 0); break; case INDEX_op_sub_i64: ext = 1; /* fall through */ case INDEX_op_sub_i32: - tcg_out_arith(s, ARITH_SUB, ext, args[0], args[1], args[2]); + tcg_out_arith(s, ARITH_SUB, ext, args[0], args[1], args[2], 0); break; case INDEX_op_and_i64: ext = 1; /* fall through */ case INDEX_op_and_i32: - tcg_out_arith(s, ARITH_AND, ext, args[0], args[1], args[2]); + tcg_out_arith(s, ARITH_AND, ext, args[0], args[1], args[2], 0); break; case INDEX_op_or_i64: ext = 1; /* fall through */ case INDEX_op_or_i32: - tcg_out_arith(s, ARITH_OR, ext, args[0], args[1], args[2]); + tcg_out_arith(s, ARITH_OR, ext, args[0], args[1], args[2], 0); break; case INDEX_op_xor_i64: ext = 1; /* fall through */ case INDEX_op_xor_i32: - tcg_out_arith(s, ARITH_XOR, ext, args[0], args[1], args[2]); + tcg_out_arith(s, ARITH_XOR, ext, args[0], args[1], args[2], 0); break; case INDEX_op_mul_i64: @@ -909,7 +920,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, if (const_args[2]) { /* ROR / EXTR Wd, Wm, Wm, 32 - m */ tcg_out_rotl(s, ext, args[0], args[1], args[2]); } else { - tcg_out_arith(s, ARITH_SUB, 0, TCG_REG_TMP, TCG_REG_XZR, args[2]); + tcg_out_arith(s, ARITH_SUB, 0, + TCG_REG_TMP, TCG_REG_XZR, args[2], 0); tcg_out_shiftrot_reg(s, SRR_ROR, ext, args[0], args[1], TCG_REG_TMP); } @@ -918,14 +930,14 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, case INDEX_op_brcond_i64: ext = 1; /* fall through */ case INDEX_op_brcond_i32: /* CMP 0, 1, cond(2), label 3 */ - tcg_out_cmp(s, ext, args[0], args[1]); + tcg_out_cmp(s, ext, args[0], args[1], 0); tcg_out_goto_label_cond(s, args[2], args[3]); break; case INDEX_op_setcond_i64: ext = 1; /* fall through */ case INDEX_op_setcond_i32: - tcg_out_cmp(s, ext, args[1], args[2]); + tcg_out_cmp(s, ext, args[1], args[2], 0); tcg_out_cset(s, 0, args[0], args[3]); break; |