diff options
Diffstat (limited to 'tcg/arm/tcg-target.c')
| -rw-r--r-- | tcg/arm/tcg-target.c | 42 |
1 files changed, 35 insertions, 7 deletions
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c index 6cfe1d6670..7ef2b898aa 100644 --- a/tcg/arm/tcg-target.c +++ b/tcg/arm/tcg-target.c @@ -100,6 +100,10 @@ static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) ct_str = *pct_str; switch (ct_str[0]) { + case 'I': + ct->ct |= TCG_CT_CONST_ARM; + break; + case 'r': #ifndef CONFIG_SOFTMMU case 'd': @@ -175,6 +179,13 @@ static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) return 0; } + +static inline int check_fit_imm(uint32_t imm) +{ + /* XXX: use rotation */ + return (imm & ~0xff) == 0; +} + /* Test if a constant matches the constraint. * TODO: define constraints for: * @@ -190,6 +201,8 @@ static inline int tcg_target_const_match(tcg_target_long val, ct = arg_ct->ct; if (ct & TCG_CT_CONST) return 1; + else if ((ct & TCG_CT_CONST_ARM) && check_fit_imm(val)) + return 1; else return 0; } @@ -333,6 +346,16 @@ static inline void tcg_out_movi32(TCGContext *s, tcg_out_dat_imm(s, cond, ARITH_ADD, rd, 15, offset) : tcg_out_dat_imm(s, cond, ARITH_SUB, rd, 15, -offset); +#ifdef __ARM_ARCH_7A__ + /* use movw/movt */ + /* movw */ + tcg_out32(s, (cond << 28) | 0x03000000 | (rd << 12) + | ((arg << 4) & 0x000f0000) | (arg & 0xfff)); + if (arg & 0xffff0000) + /* movt */ + tcg_out32(s, (cond << 28) | 0x03400000 | (rd << 12) + | ((arg >> 12) & 0x000f0000) | ((arg >> 16) & 0xfff)); +#else tcg_out_dat_imm(s, cond, ARITH_MOV, rd, 0, arg & 0xff); if (arg & 0x0000ff00) tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd, @@ -343,6 +366,7 @@ static inline void tcg_out_movi32(TCGContext *s, if (arg & 0xff000000) tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd, ((arg >> 24) & 0xff) | 0x400); +#endif } static inline void tcg_out_mul32(TCGContext *s, @@ -1383,8 +1407,12 @@ static inline void tcg_out_op(TCGContext *s, int opc, c = ARITH_EOR; /* Fall through. */ gen_arith: - tcg_out_dat_reg(s, COND_AL, c, - args[0], args[1], args[2], SHIFT_IMM_LSL(0)); + if (const_args[2]) + tcg_out_dat_imm(s, COND_AL, c, + args[0], args[1], args[2]); + else + tcg_out_dat_reg(s, COND_AL, c, + args[0], args[1], args[2], SHIFT_IMM_LSL(0)); break; case INDEX_op_add2_i32: tcg_out_dat_reg2(s, COND_AL, ARITH_ADD, ARITH_ADC, @@ -1523,15 +1551,15 @@ static const TCGTargetOpDef arm_op_defs[] = { { INDEX_op_st_i32, { "r", "r" } }, /* TODO: "r", "r", "ri" */ - { INDEX_op_add_i32, { "r", "r", "r" } }, - { INDEX_op_sub_i32, { "r", "r", "r" } }, + { INDEX_op_add_i32, { "r", "r", "rI" } }, + { INDEX_op_sub_i32, { "r", "r", "rI" } }, { INDEX_op_mul_i32, { "r", "r", "r" } }, { INDEX_op_mulu2_i32, { "r", "r", "r", "r" } }, { INDEX_op_div2_i32, { "r", "r", "r", "1", "2" } }, { INDEX_op_divu2_i32, { "r", "r", "r", "1", "2" } }, - { INDEX_op_and_i32, { "r", "r", "r" } }, - { INDEX_op_or_i32, { "r", "r", "r" } }, - { INDEX_op_xor_i32, { "r", "r", "r" } }, + { INDEX_op_and_i32, { "r", "r", "rI" } }, + { INDEX_op_or_i32, { "r", "r", "rI" } }, + { INDEX_op_xor_i32, { "r", "r", "rI" } }, { INDEX_op_neg_i32, { "r", "r" } }, { INDEX_op_shl_i32, { "r", "r", "ri" } }, |