diff options
Diffstat (limited to 'tcg/aarch64/tcg-target.c')
| -rw-r--r-- | tcg/aarch64/tcg-target.c | 66 |
1 files changed, 47 insertions, 19 deletions
diff --git a/tcg/aarch64/tcg-target.c b/tcg/aarch64/tcg-target.c index c38e3c0..26b30cb 100644 --- a/tcg/aarch64/tcg-target.c +++ b/tcg/aarch64/tcg-target.c @@ -269,6 +269,14 @@ typedef enum { I3401_SUBI = 0x51000000, I3401_SUBSI = 0x71000000, + /* Bitfield instructions. */ + I3402_BFM = 0x33000000, + I3402_SBFM = 0x13000000, + I3402_UBFM = 0x53000000, + + /* Extract instruction. */ + I3403_EXTR = 0x13800000, + /* Logical immediate instructions. */ I3404_ANDI = 0x12000000, I3404_ORRI = 0x32000000, @@ -409,6 +417,13 @@ static void tcg_out_insn_3402(TCGContext *s, AArch64Insn insn, TCGType ext, #define tcg_out_insn_3404 tcg_out_insn_3402 +static void tcg_out_insn_3403(TCGContext *s, AArch64Insn insn, TCGType ext, + TCGReg rd, TCGReg rn, TCGReg rm, int imms) +{ + tcg_out32(s, insn | ext << 31 | ext << 22 | rm << 16 | imms << 10 + | rn << 5 | rd); +} + /* This function is for both 3.5.2 (Add/Subtract shifted register), for the rare occasion when we actually want to supply a shift amount. */ static inline void tcg_out_insn_3502S(TCGContext *s, AArch64Insn insn, @@ -575,36 +590,35 @@ static inline void tcg_out_mul(TCGContext *s, TCGType ext, tcg_out32(s, base | rm << 16 | rn << 5 | rd); } +static inline void tcg_out_bfm(TCGContext *s, TCGType ext, TCGReg rd, + TCGReg rn, unsigned int a, unsigned int b) +{ + tcg_out_insn(s, 3402, BFM, ext, rd, rn, ext, a, b); +} + static inline void tcg_out_ubfm(TCGContext *s, TCGType ext, TCGReg rd, TCGReg rn, unsigned int a, unsigned int b) { - /* Using UBFM 0x53000000 Wd, Wn, a, b */ - unsigned int base = ext ? 0xd3400000 : 0x53000000; - tcg_out32(s, base | a << 16 | b << 10 | rn << 5 | rd); + tcg_out_insn(s, 3402, UBFM, ext, rd, rn, ext, a, b); } static inline void tcg_out_sbfm(TCGContext *s, TCGType ext, TCGReg rd, TCGReg rn, unsigned int a, unsigned int b) { - /* Using SBFM 0x13000000 Wd, Wn, a, b */ - unsigned int base = ext ? 0x93400000 : 0x13000000; - tcg_out32(s, base | a << 16 | b << 10 | rn << 5 | rd); + tcg_out_insn(s, 3402, SBFM, ext, rd, rn, ext, a, b); } static inline void tcg_out_extr(TCGContext *s, TCGType ext, TCGReg rd, TCGReg rn, TCGReg rm, unsigned int a) { - /* Using EXTR 0x13800000 Wd, Wn, Wm, a */ - unsigned int base = ext ? 0x93c00000 : 0x13800000; - tcg_out32(s, base | rm << 16 | a << 10 | rn << 5 | rd); + tcg_out_insn(s, 3403, EXTR, ext, rd, rn, rm, a); } static inline void tcg_out_shl(TCGContext *s, TCGType ext, TCGReg rd, TCGReg rn, unsigned int m) { - int bits, max; - bits = ext ? 64 : 32; - max = bits - 1; + int bits = ext ? 64 : 32; + int max = bits - 1; tcg_out_ubfm(s, ext, rd, rn, bits - (m & max), max - (m & max)); } @@ -632,12 +646,20 @@ static inline void tcg_out_rotr(TCGContext *s, TCGType ext, static inline void tcg_out_rotl(TCGContext *s, TCGType ext, TCGReg rd, TCGReg rn, unsigned int m) { - int bits, max; - bits = ext ? 64 : 32; - max = bits - 1; + int bits = ext ? 64 : 32; + int max = bits - 1; tcg_out_extr(s, ext, rd, rn, rn, bits - (m & max)); } +static inline void tcg_out_dep(TCGContext *s, TCGType ext, TCGReg rd, + TCGReg rn, unsigned lsb, unsigned width) +{ + unsigned size = ext ? 64 : 32; + unsigned a = (size - lsb) & (size - 1); + unsigned b = width - 1; + tcg_out_bfm(s, ext, rd, rn, a, b); +} + static void tcg_out_cmp(TCGContext *s, TCGType ext, TCGReg a, tcg_target_long b, bool const_b) { @@ -786,8 +808,7 @@ static inline void tcg_out_rev16(TCGContext *s, TCGType ext, static inline void tcg_out_sxt(TCGContext *s, TCGType ext, int s_bits, TCGReg rd, TCGReg rn) { - /* using ALIASes SXTB 0x13001c00, SXTH 0x13003c00, SXTW 0x93407c00 - of SBFM Xd, Xn, #0, #7|15|31 */ + /* Using ALIASes SXTB, SXTH, SXTW, of SBFM Xd, Xn, #0, #7|15|31 */ int bits = 8 * (1 << s_bits) - 1; tcg_out_sbfm(s, ext, rd, rn, 0, bits); } @@ -795,8 +816,7 @@ static inline void tcg_out_sxt(TCGContext *s, TCGType ext, int s_bits, static inline void tcg_out_uxt(TCGContext *s, int s_bits, TCGReg rd, TCGReg rn) { - /* using ALIASes UXTB 0x53001c00, UXTH 0x53003c00 - of UBFM Wd, Wn, #0, #7|15 */ + /* Using ALIASes UXTB, UXTH of UBFM Wd, Wn, #0, #7|15 */ int bits = 8 * (1 << s_bits) - 1; tcg_out_ubfm(s, 0, rd, rn, 0, bits); } @@ -1469,6 +1489,11 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, tcg_out_movr(s, 0, a0, a1); break; + case INDEX_op_deposit_i64: + case INDEX_op_deposit_i32: + tcg_out_dep(s, ext, a0, REG0(2), args[3], args[4]); + break; + case INDEX_op_mov_i64: case INDEX_op_mov_i32: case INDEX_op_movi_i64: @@ -1590,6 +1615,9 @@ static const TCGTargetOpDef aarch64_op_defs[] = { { INDEX_op_ext16u_i64, { "r", "r" } }, { INDEX_op_ext32u_i64, { "r", "r" } }, + { INDEX_op_deposit_i32, { "r", "0", "rZ" } }, + { INDEX_op_deposit_i64, { "r", "0", "rZ" } }, + { -1 }, }; |