diff options
Diffstat (limited to 'tcg/tcg.c')
| -rw-r--r-- | tcg/tcg.c | 242 |
1 files changed, 231 insertions, 11 deletions
diff --git a/tcg/tcg.c b/tcg/tcg.c index fd8a3dfe93..dff9999bc6 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -749,6 +749,229 @@ int tcg_check_temp_count(void) } #endif +/* Return true if OP may appear in the opcode stream. + Test the runtime variable that controls each opcode. */ +bool tcg_op_supported(TCGOpcode op) +{ + switch (op) { + case INDEX_op_discard: + case INDEX_op_set_label: + case INDEX_op_call: + case INDEX_op_br: + case INDEX_op_mb: + case INDEX_op_insn_start: + case INDEX_op_exit_tb: + case INDEX_op_goto_tb: + case INDEX_op_qemu_ld_i32: + case INDEX_op_qemu_st_i32: + case INDEX_op_qemu_ld_i64: + case INDEX_op_qemu_st_i64: + return true; + + case INDEX_op_goto_ptr: + return TCG_TARGET_HAS_goto_ptr; + + case INDEX_op_mov_i32: + case INDEX_op_movi_i32: + case INDEX_op_setcond_i32: + case INDEX_op_brcond_i32: + case INDEX_op_ld8u_i32: + case INDEX_op_ld8s_i32: + case INDEX_op_ld16u_i32: + case INDEX_op_ld16s_i32: + case INDEX_op_ld_i32: + case INDEX_op_st8_i32: + case INDEX_op_st16_i32: + case INDEX_op_st_i32: + case INDEX_op_add_i32: + case INDEX_op_sub_i32: + case INDEX_op_mul_i32: + case INDEX_op_and_i32: + case INDEX_op_or_i32: + case INDEX_op_xor_i32: + case INDEX_op_shl_i32: + case INDEX_op_shr_i32: + case INDEX_op_sar_i32: + return true; + + case INDEX_op_movcond_i32: + return TCG_TARGET_HAS_movcond_i32; + case INDEX_op_div_i32: + case INDEX_op_divu_i32: + return TCG_TARGET_HAS_div_i32; + case INDEX_op_rem_i32: + case INDEX_op_remu_i32: + return TCG_TARGET_HAS_rem_i32; + case INDEX_op_div2_i32: + case INDEX_op_divu2_i32: + return TCG_TARGET_HAS_div2_i32; + case INDEX_op_rotl_i32: + case INDEX_op_rotr_i32: + return TCG_TARGET_HAS_rot_i32; + case INDEX_op_deposit_i32: + return TCG_TARGET_HAS_deposit_i32; + case INDEX_op_extract_i32: + return TCG_TARGET_HAS_extract_i32; + case INDEX_op_sextract_i32: + return TCG_TARGET_HAS_sextract_i32; + case INDEX_op_add2_i32: + return TCG_TARGET_HAS_add2_i32; + case INDEX_op_sub2_i32: + return TCG_TARGET_HAS_sub2_i32; + case INDEX_op_mulu2_i32: + return TCG_TARGET_HAS_mulu2_i32; + case INDEX_op_muls2_i32: + return TCG_TARGET_HAS_muls2_i32; + case INDEX_op_muluh_i32: + return TCG_TARGET_HAS_muluh_i32; + case INDEX_op_mulsh_i32: + return TCG_TARGET_HAS_mulsh_i32; + case INDEX_op_ext8s_i32: + return TCG_TARGET_HAS_ext8s_i32; + case INDEX_op_ext16s_i32: + return TCG_TARGET_HAS_ext16s_i32; + case INDEX_op_ext8u_i32: + return TCG_TARGET_HAS_ext8u_i32; + case INDEX_op_ext16u_i32: + return TCG_TARGET_HAS_ext16u_i32; + case INDEX_op_bswap16_i32: + return TCG_TARGET_HAS_bswap16_i32; + case INDEX_op_bswap32_i32: + return TCG_TARGET_HAS_bswap32_i32; + case INDEX_op_not_i32: + return TCG_TARGET_HAS_not_i32; + case INDEX_op_neg_i32: + return TCG_TARGET_HAS_neg_i32; + case INDEX_op_andc_i32: + return TCG_TARGET_HAS_andc_i32; + case INDEX_op_orc_i32: + return TCG_TARGET_HAS_orc_i32; + case INDEX_op_eqv_i32: + return TCG_TARGET_HAS_eqv_i32; + case INDEX_op_nand_i32: + return TCG_TARGET_HAS_nand_i32; + case INDEX_op_nor_i32: + return TCG_TARGET_HAS_nor_i32; + case INDEX_op_clz_i32: + return TCG_TARGET_HAS_clz_i32; + case INDEX_op_ctz_i32: + return TCG_TARGET_HAS_ctz_i32; + case INDEX_op_ctpop_i32: + return TCG_TARGET_HAS_ctpop_i32; + + case INDEX_op_brcond2_i32: + case INDEX_op_setcond2_i32: + return TCG_TARGET_REG_BITS == 32; + + case INDEX_op_mov_i64: + case INDEX_op_movi_i64: + case INDEX_op_setcond_i64: + case INDEX_op_brcond_i64: + case INDEX_op_ld8u_i64: + case INDEX_op_ld8s_i64: + case INDEX_op_ld16u_i64: + case INDEX_op_ld16s_i64: + case INDEX_op_ld32u_i64: + case INDEX_op_ld32s_i64: + case INDEX_op_ld_i64: + case INDEX_op_st8_i64: + case INDEX_op_st16_i64: + case INDEX_op_st32_i64: + case INDEX_op_st_i64: + case INDEX_op_add_i64: + case INDEX_op_sub_i64: + case INDEX_op_mul_i64: + case INDEX_op_and_i64: + case INDEX_op_or_i64: + case INDEX_op_xor_i64: + case INDEX_op_shl_i64: + case INDEX_op_shr_i64: + case INDEX_op_sar_i64: + case INDEX_op_ext_i32_i64: + case INDEX_op_extu_i32_i64: + return TCG_TARGET_REG_BITS == 64; + + case INDEX_op_movcond_i64: + return TCG_TARGET_HAS_movcond_i64; + case INDEX_op_div_i64: + case INDEX_op_divu_i64: + return TCG_TARGET_HAS_div_i64; + case INDEX_op_rem_i64: + case INDEX_op_remu_i64: + return TCG_TARGET_HAS_rem_i64; + case INDEX_op_div2_i64: + case INDEX_op_divu2_i64: + return TCG_TARGET_HAS_div2_i64; + case INDEX_op_rotl_i64: + case INDEX_op_rotr_i64: + return TCG_TARGET_HAS_rot_i64; + case INDEX_op_deposit_i64: + return TCG_TARGET_HAS_deposit_i64; + case INDEX_op_extract_i64: + return TCG_TARGET_HAS_extract_i64; + case INDEX_op_sextract_i64: + return TCG_TARGET_HAS_sextract_i64; + case INDEX_op_extrl_i64_i32: + return TCG_TARGET_HAS_extrl_i64_i32; + case INDEX_op_extrh_i64_i32: + return TCG_TARGET_HAS_extrh_i64_i32; + case INDEX_op_ext8s_i64: + return TCG_TARGET_HAS_ext8s_i64; + case INDEX_op_ext16s_i64: + return TCG_TARGET_HAS_ext16s_i64; + case INDEX_op_ext32s_i64: + return TCG_TARGET_HAS_ext32s_i64; + case INDEX_op_ext8u_i64: + return TCG_TARGET_HAS_ext8u_i64; + case INDEX_op_ext16u_i64: + return TCG_TARGET_HAS_ext16u_i64; + case INDEX_op_ext32u_i64: + return TCG_TARGET_HAS_ext32u_i64; + case INDEX_op_bswap16_i64: + return TCG_TARGET_HAS_bswap16_i64; + case INDEX_op_bswap32_i64: + return TCG_TARGET_HAS_bswap32_i64; + case INDEX_op_bswap64_i64: + return TCG_TARGET_HAS_bswap64_i64; + case INDEX_op_not_i64: + return TCG_TARGET_HAS_not_i64; + case INDEX_op_neg_i64: + return TCG_TARGET_HAS_neg_i64; + case INDEX_op_andc_i64: + return TCG_TARGET_HAS_andc_i64; + case INDEX_op_orc_i64: + return TCG_TARGET_HAS_orc_i64; + case INDEX_op_eqv_i64: + return TCG_TARGET_HAS_eqv_i64; + case INDEX_op_nand_i64: + return TCG_TARGET_HAS_nand_i64; + case INDEX_op_nor_i64: + return TCG_TARGET_HAS_nor_i64; + case INDEX_op_clz_i64: + return TCG_TARGET_HAS_clz_i64; + case INDEX_op_ctz_i64: + return TCG_TARGET_HAS_ctz_i64; + case INDEX_op_ctpop_i64: + return TCG_TARGET_HAS_ctpop_i64; + case INDEX_op_add2_i64: + return TCG_TARGET_HAS_add2_i64; + case INDEX_op_sub2_i64: + return TCG_TARGET_HAS_sub2_i64; + case INDEX_op_mulu2_i64: + return TCG_TARGET_HAS_mulu2_i64; + case INDEX_op_muls2_i64: + return TCG_TARGET_HAS_muls2_i64; + case INDEX_op_muluh_i64: + return TCG_TARGET_HAS_muluh_i64; + case INDEX_op_mulsh_i64: + return TCG_TARGET_HAS_mulsh_i64; + + case NB_OPS: + break; + } + g_assert_not_reached(); +} + /* Note: we convert the 64 bit args to 32 bit and do some alignment and endian swap. Maybe it would be better to do the alignment and endian swap in tcg_reg_alloc_call(). */ @@ -1277,7 +1500,7 @@ static void process_op_defs(TCGContext *s) /* Incomplete TCGTargetOpDef entry. */ tcg_debug_assert(ct_str != NULL); - tcg_regset_clear(def->args_ct[i].u.regs); + def->args_ct[i].u.regs = 0; def->args_ct[i].ct = 0; while (*ct_str != '\0') { switch(*ct_str) { @@ -1993,7 +2216,7 @@ static TCGReg tcg_reg_alloc(TCGContext *s, TCGRegSet desired_regs, TCGReg reg; TCGRegSet reg_ct; - tcg_regset_andnot(reg_ct, desired_regs, allocated_regs); + reg_ct = desired_regs & ~allocated_regs; order = rev ? indirect_reg_alloc_order : tcg_target_reg_alloc_order; /* first try free registers */ @@ -2139,7 +2362,7 @@ static void tcg_reg_alloc_mov(TCGContext *s, const TCGOpDef *def, TCGTemp *ts, *ots; TCGType otype, itype; - tcg_regset_set(allocated_regs, s->reserved_regs); + allocated_regs = s->reserved_regs; ots = &s->temps[args[0]]; ts = &s->temps[args[1]]; @@ -2227,8 +2450,8 @@ static void tcg_reg_alloc_op(TCGContext *s, args + nb_oargs + nb_iargs, sizeof(TCGArg) * def->nb_cargs); - tcg_regset_set(i_allocated_regs, s->reserved_regs); - tcg_regset_set(o_allocated_regs, s->reserved_regs); + i_allocated_regs = s->reserved_regs; + o_allocated_regs = s->reserved_regs; /* satisfy input constraints */ for(k = 0; k < nb_iargs; k++) { @@ -2428,7 +2651,7 @@ static void tcg_reg_alloc_call(TCGContext *s, int nb_oargs, int nb_iargs, } /* assign input registers */ - tcg_regset_set(allocated_regs, s->reserved_regs); + allocated_regs = s->reserved_regs; for(i = 0; i < nb_regs; i++) { arg = args[nb_oargs + i]; if (arg != TCG_CALL_DUMMY_ARG) { @@ -2441,9 +2664,8 @@ static void tcg_reg_alloc_call(TCGContext *s, int nb_oargs, int nb_iargs, tcg_out_mov(s, ts->type, reg, ts->reg); } } else { - TCGRegSet arg_set; + TCGRegSet arg_set = 0; - tcg_regset_clear(arg_set); tcg_regset_set_reg(arg_set, reg); temp_load(s, ts, arg_set, allocated_regs); } @@ -2673,9 +2895,7 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb) break; default: /* Sanity check that we've not introduced any unhandled opcodes. */ - if (def->flags & TCG_OPF_NOT_PRESENT) { - tcg_abort(); - } + tcg_debug_assert(tcg_op_supported(opc)); /* Note: in order to speed up the code, it would be much faster to have specialized register allocator functions for some common argument patterns */ |