diff options
| -rw-r--r-- | tcg/hppa/tcg-target.c | 276 |
1 files changed, 132 insertions, 144 deletions
diff --git a/tcg/hppa/tcg-target.c b/tcg/hppa/tcg-target.c index ffdaf00..2f3b770 100644 --- a/tcg/hppa/tcg-target.c +++ b/tcg/hppa/tcg-target.c @@ -939,108 +939,97 @@ static int tcg_out_tlb_read(TCGContext *s, int r0, int r1, int addrlo, } #endif -static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc) +static void tcg_out_qemu_ld_direct(TCGContext *s, int datalo_reg, int datahi_reg, + int addr_reg, int addend_reg, int opc) { - int addr_reg, addr_reg2; - int data_reg, data_reg2; - int r0, r1, mem_index, s_bits, bswap; - tcg_target_long offset; -#if defined(CONFIG_SOFTMMU) - int lab1, lab2, argreg; -#endif - - data_reg = *args++; - data_reg2 = (opc == 3 ? *args++ : TCG_REG_R0); - addr_reg = *args++; - addr_reg2 = (TARGET_LONG_BITS == 64 ? *args++ : TCG_REG_R0); - mem_index = *args; - s_bits = opc & 3; - - r0 = TCG_REG_R26; - r1 = TCG_REG_R25; - -#if defined(CONFIG_SOFTMMU) - lab1 = gen_new_label(); - lab2 = gen_new_label(); - - offset = tcg_out_tlb_read(s, r0, r1, addr_reg, addr_reg2, s_bits, lab1, - offsetof(CPUState, - tlb_table[mem_index][0].addr_read)); - - /* TLB Hit. */ - tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R20, (offset ? TCG_REG_R1 : r1), - offsetof(CPUState, tlb_table[mem_index][0].addend) - offset); - - tcg_out_arith(s, r0, addr_reg, TCG_REG_R20, INSN_ADDL); - offset = TCG_REG_R0; -#else - r0 = addr_reg; - offset = GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_R0; -#endif - #ifdef TARGET_WORDS_BIGENDIAN - bswap = 0; + const int bswap = 0; #else - bswap = 1; + const int bswap = 1; #endif + switch (opc) { case 0: - tcg_out_ldst_index(s, data_reg, r0, offset, INSN_LDBX); + tcg_out_ldst_index(s, datalo_reg, addr_reg, addend_reg, INSN_LDBX); break; case 0 | 4: - tcg_out_ldst_index(s, data_reg, r0, offset, INSN_LDBX); - tcg_out_ext8s(s, data_reg, data_reg); + tcg_out_ldst_index(s, datalo_reg, addr_reg, addend_reg, INSN_LDBX); + tcg_out_ext8s(s, datalo_reg, datalo_reg); break; case 1: - tcg_out_ldst_index(s, data_reg, r0, offset, INSN_LDHX); + tcg_out_ldst_index(s, datalo_reg, addr_reg, addend_reg, INSN_LDHX); if (bswap) { - tcg_out_bswap16(s, data_reg, data_reg, 0); + tcg_out_bswap16(s, datalo_reg, datalo_reg, 0); } break; case 1 | 4: - tcg_out_ldst_index(s, data_reg, r0, offset, INSN_LDHX); + tcg_out_ldst_index(s, datalo_reg, addr_reg, addend_reg, INSN_LDHX); if (bswap) { - tcg_out_bswap16(s, data_reg, data_reg, 1); + tcg_out_bswap16(s, datalo_reg, datalo_reg, 1); } else { - tcg_out_ext16s(s, data_reg, data_reg); + tcg_out_ext16s(s, datalo_reg, datalo_reg); } break; case 2: - tcg_out_ldst_index(s, data_reg, r0, offset, INSN_LDWX); + tcg_out_ldst_index(s, datalo_reg, addr_reg, addend_reg, INSN_LDWX); if (bswap) { - tcg_out_bswap32(s, data_reg, data_reg, TCG_REG_R20); + tcg_out_bswap32(s, datalo_reg, datalo_reg, TCG_REG_R20); } break; case 3: if (bswap) { - int t = data_reg2; - data_reg2 = data_reg; - data_reg = t; + int t = datahi_reg; + datahi_reg = datalo_reg; + datalo_reg = t; } - if (offset == TCG_REG_R0) { - /* Make sure not to clobber the base register. */ - if (data_reg2 == r0) { - tcg_out_ldst(s, data_reg, r0, 4, INSN_LDW); - tcg_out_ldst(s, data_reg2, r0, 0, INSN_LDW); - } else { - tcg_out_ldst(s, data_reg2, r0, 0, INSN_LDW); - tcg_out_ldst(s, data_reg, r0, 4, INSN_LDW); - } + /* We can't access the low-part with a reg+reg addressing mode, + so perform the addition now and use reg_ofs addressing mode. */ + if (addend_reg != TCG_REG_R0) { + tcg_out_arith(s, TCG_REG_R20, addr_reg, addend_reg, INSN_ADD); + addr_reg = TCG_REG_R20; + } + /* Make sure not to clobber the base register. */ + if (datahi_reg == addr_reg) { + tcg_out_ldst(s, datalo_reg, addr_reg, 4, INSN_LDW); + tcg_out_ldst(s, datahi_reg, addr_reg, 0, INSN_LDW); } else { - tcg_out_addi2(s, TCG_REG_R20, r0, 4); - tcg_out_ldst_index(s, data_reg2, r0, offset, INSN_LDWX); - tcg_out_ldst_index(s, data_reg, TCG_REG_R20, offset, INSN_LDWX); + tcg_out_ldst(s, datahi_reg, addr_reg, 0, INSN_LDW); + tcg_out_ldst(s, datalo_reg, addr_reg, 4, INSN_LDW); } if (bswap) { - tcg_out_bswap32(s, data_reg, data_reg, TCG_REG_R20); - tcg_out_bswap32(s, data_reg2, data_reg2, TCG_REG_R20); + tcg_out_bswap32(s, datalo_reg, datalo_reg, TCG_REG_R20); + tcg_out_bswap32(s, datahi_reg, datahi_reg, TCG_REG_R20); } break; default: tcg_abort(); } +} + +static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc) +{ + int datalo_reg = *args++; + /* Note that datahi_reg is only used for 64-bit loads. */ + int datahi_reg = (opc == 3 ? *args++ : TCG_REG_R0); + int addrlo_reg = *args++; #if defined(CONFIG_SOFTMMU) + /* Note that addrhi_reg is only used for 64-bit guests. */ + int addrhi_reg = (TARGET_LONG_BITS == 64 ? *args++ : TCG_REG_R0); + int mem_index = *args; + int lab1, lab2, argreg, offset; + + lab1 = gen_new_label(); + lab2 = gen_new_label(); + + offset = offsetof(CPUState, tlb_table[mem_index][0].addr_read); + offset = tcg_out_tlb_read(s, TCG_REG_R26, TCG_REG_R25, addrlo_reg, addrhi_reg, + opc & 3, lab1, offset); + + /* TLB Hit. */ + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R20, (offset ? TCG_REG_R1 : TCG_REG_R25), + offsetof(CPUState, tlb_table[mem_index][0].addend) - offset); + tcg_out_qemu_ld_direct(s, datalo_reg, datahi_reg, addrlo_reg, TCG_REG_R20, opc); tcg_out_branch(s, lab2, 1); /* TLB Miss. */ @@ -1048,34 +1037,34 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc) tcg_out_label(s, lab1, (tcg_target_long)s->code_ptr); argreg = TCG_REG_R26; - tcg_out_mov(s, argreg--, addr_reg); + tcg_out_mov(s, argreg--, addrlo_reg); if (TARGET_LONG_BITS == 64) { - tcg_out_mov(s, argreg--, addr_reg2); + tcg_out_mov(s, argreg--, addrhi_reg); } tcg_out_movi(s, TCG_TYPE_I32, argreg, mem_index); - tcg_out_call(s, qemu_ld_helpers[s_bits]); + tcg_out_call(s, qemu_ld_helpers[opc & 3]); switch (opc) { case 0: - tcg_out_andi(s, data_reg, TCG_REG_RET0, 0xff); + tcg_out_andi(s, datalo_reg, TCG_REG_RET0, 0xff); break; case 0 | 4: - tcg_out_ext8s(s, data_reg, TCG_REG_RET0); + tcg_out_ext8s(s, datalo_reg, TCG_REG_RET0); break; case 1: - tcg_out_andi(s, data_reg, TCG_REG_RET0, 0xffff); + tcg_out_andi(s, datalo_reg, TCG_REG_RET0, 0xffff); break; case 1 | 4: - tcg_out_ext16s(s, data_reg, TCG_REG_RET0); + tcg_out_ext16s(s, datalo_reg, TCG_REG_RET0); break; case 2: case 2 | 4: - tcg_out_mov(s, data_reg, TCG_REG_RET0); + tcg_out_mov(s, datalo_reg, TCG_REG_RET0); break; case 3: - tcg_out_mov(s, data_reg, TCG_REG_RET0); - tcg_out_mov(s, data_reg2, TCG_REG_RET1); + tcg_out_mov(s, datahi_reg, TCG_REG_RET0); + tcg_out_mov(s, datalo_reg, TCG_REG_RET1); break; default: tcg_abort(); @@ -1083,92 +1072,83 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc) /* label2: */ tcg_out_label(s, lab2, (tcg_target_long)s->code_ptr); +#else + tcg_out_qemu_ld_direct(s, datalo_reg, datahi_reg, addrlo_reg, + (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_R0), opc); #endif } -static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) +static void tcg_out_qemu_st_direct(TCGContext *s, int datalo_reg, int datahi_reg, + int addr_reg, int opc) { - int addr_reg, addr_reg2; - int data_reg, data_reg2; - int r0, r1, mem_index, s_bits, bswap; -#if defined(CONFIG_SOFTMMU) - tcg_target_long offset; - int lab1, lab2, argreg; -#endif - - data_reg = *args++; - data_reg2 = (opc == 3 ? *args++ : 0); - addr_reg = *args++; - addr_reg2 = (TARGET_LONG_BITS == 64 ? *args++ : 0); - mem_index = *args; - s_bits = opc; - - r0 = TCG_REG_R26; - r1 = TCG_REG_R25; - -#if defined(CONFIG_SOFTMMU) - lab1 = gen_new_label(); - lab2 = gen_new_label(); - - offset = tcg_out_tlb_read(s, r0, r1, addr_reg, addr_reg2, s_bits, lab1, - offsetof(CPUState, - tlb_table[mem_index][0].addr_write)); - - /* TLB Hit. */ - tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R20, (offset ? TCG_REG_R1 : r1), - offsetof(CPUState, tlb_table[mem_index][0].addend) - offset); - - tcg_out_arith(s, r0, addr_reg, TCG_REG_R20, INSN_ADDL); -#else - /* There are no indexed stores, so if GUEST_BASE is set - we must do the add explicitly. Careful to avoid R20, - which is used for the bswaps to follow. */ - if (GUEST_BASE == 0) { - r0 = addr_reg; - } else { - tcg_out_arith(s, TCG_REG_R31, addr_reg, TCG_GUEST_BASE_REG, INSN_ADDL); - r0 = TCG_REG_R31; - } -#endif - #ifdef TARGET_WORDS_BIGENDIAN - bswap = 0; + const int bswap = 0; #else - bswap = 1; + const int bswap = 1; #endif + switch (opc) { case 0: - tcg_out_ldst(s, data_reg, r0, 0, INSN_STB); + tcg_out_ldst(s, datalo_reg, addr_reg, 0, INSN_STB); break; case 1: if (bswap) { - tcg_out_bswap16(s, TCG_REG_R20, data_reg, 0); - data_reg = TCG_REG_R20; + tcg_out_bswap16(s, TCG_REG_R20, datalo_reg, 0); + datalo_reg = TCG_REG_R20; } - tcg_out_ldst(s, data_reg, r0, 0, INSN_STH); + tcg_out_ldst(s, datalo_reg, addr_reg, 0, INSN_STH); break; case 2: if (bswap) { - tcg_out_bswap32(s, TCG_REG_R20, data_reg, TCG_REG_R20); - data_reg = TCG_REG_R20; + tcg_out_bswap32(s, TCG_REG_R20, datalo_reg, TCG_REG_R20); + datalo_reg = TCG_REG_R20; } - tcg_out_ldst(s, data_reg, r0, 0, INSN_STW); + tcg_out_ldst(s, datalo_reg, addr_reg, 0, INSN_STW); break; case 3: if (bswap) { - tcg_out_bswap32(s, TCG_REG_R20, data_reg, TCG_REG_R20); - tcg_out_bswap32(s, TCG_REG_R23, data_reg2, TCG_REG_R23); - data_reg2 = TCG_REG_R20; - data_reg = TCG_REG_R23; + tcg_out_bswap32(s, TCG_REG_R20, datalo_reg, TCG_REG_R20); + tcg_out_bswap32(s, TCG_REG_R23, datahi_reg, TCG_REG_R23); + datahi_reg = TCG_REG_R20; + datalo_reg = TCG_REG_R23; } - tcg_out_ldst(s, data_reg2, r0, 0, INSN_STW); - tcg_out_ldst(s, data_reg, r0, 4, INSN_STW); + tcg_out_ldst(s, datahi_reg, addr_reg, 0, INSN_STW); + tcg_out_ldst(s, datalo_reg, addr_reg, 4, INSN_STW); break; default: tcg_abort(); } +} + +static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) +{ + int datalo_reg = *args++; + /* Note that datahi_reg is only used for 64-bit loads. */ + int datahi_reg = (opc == 3 ? *args++ : TCG_REG_R0); + int addrlo_reg = *args++; + #if defined(CONFIG_SOFTMMU) + /* Note that addrhi_reg is only used for 64-bit guests. */ + int addrhi_reg = (TARGET_LONG_BITS == 64 ? *args++ : TCG_REG_R0); + int mem_index = *args; + int lab1, lab2, argreg, offset; + + lab1 = gen_new_label(); + lab2 = gen_new_label(); + + offset = offsetof(CPUState, tlb_table[mem_index][0].addr_write); + offset = tcg_out_tlb_read(s, TCG_REG_R26, TCG_REG_R25, addrlo_reg, addrhi_reg, + opc, lab1, offset); + + /* TLB Hit. */ + tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R20, (offset ? TCG_REG_R1 : TCG_REG_R25), + offsetof(CPUState, tlb_table[mem_index][0].addend) - offset); + + /* There are no indexed stores, so we must do this addition explitly. + Careful to avoid R20, which is used for the bswaps to follow. */ + tcg_out_arith(s, TCG_REG_R31, addrlo_reg, TCG_REG_R20, INSN_ADDL); + tcg_out_qemu_st_direct(s, datalo_reg, datahi_reg, TCG_REG_R31, opc); tcg_out_branch(s, lab2, 1); /* TLB Miss. */ @@ -1176,22 +1156,22 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) tcg_out_label(s, lab1, (tcg_target_long)s->code_ptr); argreg = TCG_REG_R26; - tcg_out_mov(s, argreg--, addr_reg); + tcg_out_mov(s, argreg--, addrlo_reg); if (TARGET_LONG_BITS == 64) { - tcg_out_mov(s, argreg--, addr_reg2); + tcg_out_mov(s, argreg--, addrhi_reg); } switch(opc) { case 0: - tcg_out_andi(s, argreg--, data_reg, 0xff); + tcg_out_andi(s, argreg--, datalo_reg, 0xff); tcg_out_movi(s, TCG_TYPE_I32, argreg, mem_index); break; case 1: - tcg_out_andi(s, argreg--, data_reg, 0xffff); + tcg_out_andi(s, argreg--, datalo_reg, 0xffff); tcg_out_movi(s, TCG_TYPE_I32, argreg, mem_index); break; case 2: - tcg_out_mov(s, argreg--, data_reg); + tcg_out_mov(s, argreg--, datalo_reg); tcg_out_movi(s, TCG_TYPE_I32, argreg, mem_index); break; case 3: @@ -1205,8 +1185,8 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) argreg = TCG_REG_R20; tcg_out_movi(s, TCG_TYPE_I32, argreg, mem_index); } - tcg_out_mov(s, TCG_REG_R23, data_reg2); - tcg_out_mov(s, TCG_REG_R24, data_reg); + tcg_out_mov(s, TCG_REG_R23, datahi_reg); + tcg_out_mov(s, TCG_REG_R24, datalo_reg); tcg_out_st(s, TCG_TYPE_I32, argreg, TCG_REG_SP, TCG_TARGET_CALL_STACK_OFFSET - 4); break; @@ -1214,10 +1194,18 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) tcg_abort(); } - tcg_out_call(s, qemu_st_helpers[s_bits]); + tcg_out_call(s, qemu_st_helpers[opc]); /* label2: */ tcg_out_label(s, lab2, (tcg_target_long)s->code_ptr); +#else + /* There are no indexed stores, so if GUEST_BASE is set we must do the add + explicitly. Careful to avoid R20, which is used for the bswaps to follow. */ + if (GUEST_BASE != 0) { + tcg_out_arith(s, TCG_REG_R31, addrlo_reg, TCG_GUEST_BASE_REG, INSN_ADDL); + addrlo_reg = TCG_REG_R31; + } + tcg_out_qemu_st_direct(s, datalo_reg, datahi_reg, addrlo_reg, opc); #endif } |