root / tcg / sparc / tcg-target.c @ 583d1215
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/*
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* Tiny Code Generator for QEMU
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*
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* Copyright (c) 2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef NDEBUG
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static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { |
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"%g0",
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"%g1",
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"%g2",
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"%g3",
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"%g4",
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"%g5",
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"%g6",
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"%g7",
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"%o0",
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"%o1",
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"%o2",
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"%o3",
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"%o4",
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"%o5",
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"%o6",
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"%o7",
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"%l0",
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"%l1",
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"%l2",
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"%l3",
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"%l4",
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"%l5",
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"%l6",
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"%l7",
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"%i0",
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"%i1",
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"%i2",
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"%i3",
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"%i4",
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"%i5",
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"%i6",
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"%i7",
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}; |
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#endif
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static const int tcg_target_reg_alloc_order[] = { |
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TCG_REG_L0, |
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TCG_REG_L1, |
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TCG_REG_L2, |
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TCG_REG_L3, |
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TCG_REG_L4, |
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TCG_REG_L5, |
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TCG_REG_L6, |
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TCG_REG_L7, |
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TCG_REG_I0, |
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TCG_REG_I1, |
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TCG_REG_I2, |
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TCG_REG_I3, |
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TCG_REG_I4, |
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}; |
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|
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static const int tcg_target_call_iarg_regs[6] = { |
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TCG_REG_O0, |
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TCG_REG_O1, |
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TCG_REG_O2, |
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TCG_REG_O3, |
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TCG_REG_O4, |
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TCG_REG_O5, |
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}; |
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|
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static const int tcg_target_call_oarg_regs[2] = { |
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TCG_REG_O0, |
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TCG_REG_O1, |
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}; |
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|
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static inline int check_fit_tl(tcg_target_long val, unsigned int bits) |
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{ |
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return (val << ((sizeof(tcg_target_long) * 8 - bits)) |
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>> (sizeof(tcg_target_long) * 8 - bits)) == val; |
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} |
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|
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static inline int check_fit_i32(uint32_t val, unsigned int bits) |
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{ |
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return ((val << (32 - bits)) >> (32 - bits)) == val; |
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} |
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|
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static void patch_reloc(uint8_t *code_ptr, int type, |
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tcg_target_long value, tcg_target_long addend) |
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{ |
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value += addend; |
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switch (type) {
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case R_SPARC_32:
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if (value != (uint32_t)value)
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tcg_abort(); |
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*(uint32_t *)code_ptr = value; |
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break;
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case R_SPARC_WDISP22:
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value -= (long)code_ptr;
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value >>= 2;
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if (!check_fit_tl(value, 22)) |
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tcg_abort(); |
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*(uint32_t *)code_ptr = ((*(uint32_t *)code_ptr) & ~0x3fffff) | value;
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break;
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case R_SPARC_WDISP19:
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value -= (long)code_ptr;
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value >>= 2;
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if (!check_fit_tl(value, 19)) |
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tcg_abort(); |
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*(uint32_t *)code_ptr = ((*(uint32_t *)code_ptr) & ~0x7ffff) | value;
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break;
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default:
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tcg_abort(); |
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} |
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} |
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|
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/* maximum number of register used for input function arguments */
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static inline int tcg_target_get_call_iarg_regs_count(int flags) |
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{ |
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return 6; |
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} |
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|
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/* parse target specific constraints */
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static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) |
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{ |
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const char *ct_str; |
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ct_str = *pct_str; |
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switch (ct_str[0]) { |
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case 'r': |
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ct->ct |= TCG_CT_REG; |
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff); |
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break;
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case 'L': /* qemu_ld/st constraint */ |
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ct->ct |= TCG_CT_REG; |
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff); |
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// Helper args
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_O0); |
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_O1); |
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_O2); |
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break;
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case 'I': |
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ct->ct |= TCG_CT_CONST_S11; |
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break;
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case 'J': |
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ct->ct |= TCG_CT_CONST_S13; |
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break;
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default:
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return -1; |
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} |
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ct_str++; |
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*pct_str = ct_str; |
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return 0; |
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} |
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|
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/* test if a constant matches the constraint */
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static inline int tcg_target_const_match(tcg_target_long val, |
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const TCGArgConstraint *arg_ct)
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{ |
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int ct;
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ct = arg_ct->ct; |
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if (ct & TCG_CT_CONST)
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return 1; |
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else if ((ct & TCG_CT_CONST_S11) && check_fit_tl(val, 11)) |
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return 1; |
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else if ((ct & TCG_CT_CONST_S13) && check_fit_tl(val, 13)) |
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return 1; |
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else
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return 0; |
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} |
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#define INSN_OP(x) ((x) << 30) |
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#define INSN_OP2(x) ((x) << 22) |
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#define INSN_OP3(x) ((x) << 19) |
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#define INSN_OPF(x) ((x) << 5) |
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#define INSN_RD(x) ((x) << 25) |
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#define INSN_RS1(x) ((x) << 14) |
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#define INSN_RS2(x) (x)
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#define INSN_ASI(x) ((x) << 5) |
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#define INSN_IMM13(x) ((1 << 13) | ((x) & 0x1fff)) |
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#define INSN_OFF19(x) (((x) >> 2) & 0x07ffff) |
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#define INSN_OFF22(x) (((x) >> 2) & 0x3fffff) |
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#define INSN_COND(x, a) (((x) << 25) | ((a) << 29)) |
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#define COND_N 0x0 |
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#define COND_E 0x1 |
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#define COND_LE 0x2 |
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#define COND_L 0x3 |
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#define COND_LEU 0x4 |
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#define COND_CS 0x5 |
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#define COND_NEG 0x6 |
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#define COND_VS 0x7 |
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#define COND_A 0x8 |
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#define COND_NE 0x9 |
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#define COND_G 0xa |
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#define COND_GE 0xb |
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#define COND_GU 0xc |
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#define COND_CC 0xd |
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#define COND_POS 0xe |
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#define COND_VC 0xf |
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#define BA (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2)) |
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|
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#define ARITH_ADD (INSN_OP(2) | INSN_OP3(0x00)) |
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#define ARITH_ADDCC (INSN_OP(2) | INSN_OP3(0x10)) |
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#define ARITH_AND (INSN_OP(2) | INSN_OP3(0x01)) |
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#define ARITH_OR (INSN_OP(2) | INSN_OP3(0x02)) |
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#define ARITH_ORCC (INSN_OP(2) | INSN_OP3(0x12)) |
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#define ARITH_XOR (INSN_OP(2) | INSN_OP3(0x03)) |
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#define ARITH_SUB (INSN_OP(2) | INSN_OP3(0x04)) |
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#define ARITH_SUBCC (INSN_OP(2) | INSN_OP3(0x14)) |
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#define ARITH_ADDX (INSN_OP(2) | INSN_OP3(0x10)) |
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#define ARITH_SUBX (INSN_OP(2) | INSN_OP3(0x0c)) |
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#define ARITH_UMUL (INSN_OP(2) | INSN_OP3(0x0a)) |
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#define ARITH_UDIV (INSN_OP(2) | INSN_OP3(0x0e)) |
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#define ARITH_SDIV (INSN_OP(2) | INSN_OP3(0x0f)) |
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#define ARITH_MULX (INSN_OP(2) | INSN_OP3(0x09)) |
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#define ARITH_UDIVX (INSN_OP(2) | INSN_OP3(0x0d)) |
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#define ARITH_SDIVX (INSN_OP(2) | INSN_OP3(0x2d)) |
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|
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#define SHIFT_SLL (INSN_OP(2) | INSN_OP3(0x25)) |
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#define SHIFT_SRL (INSN_OP(2) | INSN_OP3(0x26)) |
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#define SHIFT_SRA (INSN_OP(2) | INSN_OP3(0x27)) |
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|
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#define SHIFT_SLLX (INSN_OP(2) | INSN_OP3(0x25) | (1 << 12)) |
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#define SHIFT_SRLX (INSN_OP(2) | INSN_OP3(0x26) | (1 << 12)) |
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#define SHIFT_SRAX (INSN_OP(2) | INSN_OP3(0x27) | (1 << 12)) |
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|
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#define RDY (INSN_OP(2) | INSN_OP3(0x28) | INSN_RS1(0)) |
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#define WRY (INSN_OP(2) | INSN_OP3(0x30) | INSN_RD(0)) |
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#define JMPL (INSN_OP(2) | INSN_OP3(0x38)) |
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#define SAVE (INSN_OP(2) | INSN_OP3(0x3c)) |
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#define RESTORE (INSN_OP(2) | INSN_OP3(0x3d)) |
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#define SETHI (INSN_OP(0) | INSN_OP2(0x4)) |
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#define CALL INSN_OP(1) |
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#define LDUB (INSN_OP(3) | INSN_OP3(0x01)) |
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#define LDSB (INSN_OP(3) | INSN_OP3(0x09)) |
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#define LDUH (INSN_OP(3) | INSN_OP3(0x02)) |
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#define LDSH (INSN_OP(3) | INSN_OP3(0x0a)) |
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#define LDUW (INSN_OP(3) | INSN_OP3(0x00)) |
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#define LDSW (INSN_OP(3) | INSN_OP3(0x08)) |
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#define LDX (INSN_OP(3) | INSN_OP3(0x0b)) |
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#define STB (INSN_OP(3) | INSN_OP3(0x05)) |
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#define STH (INSN_OP(3) | INSN_OP3(0x06)) |
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#define STW (INSN_OP(3) | INSN_OP3(0x04)) |
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#define STX (INSN_OP(3) | INSN_OP3(0x0e)) |
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#define LDUBA (INSN_OP(3) | INSN_OP3(0x11)) |
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#define LDSBA (INSN_OP(3) | INSN_OP3(0x19)) |
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#define LDUHA (INSN_OP(3) | INSN_OP3(0x12)) |
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#define LDSHA (INSN_OP(3) | INSN_OP3(0x1a)) |
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#define LDUWA (INSN_OP(3) | INSN_OP3(0x10)) |
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#define LDSWA (INSN_OP(3) | INSN_OP3(0x18)) |
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#define LDXA (INSN_OP(3) | INSN_OP3(0x1b)) |
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#define STBA (INSN_OP(3) | INSN_OP3(0x15)) |
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#define STHA (INSN_OP(3) | INSN_OP3(0x16)) |
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#define STWA (INSN_OP(3) | INSN_OP3(0x14)) |
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#define STXA (INSN_OP(3) | INSN_OP3(0x1e)) |
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|
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#ifndef ASI_PRIMARY_LITTLE
|
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#define ASI_PRIMARY_LITTLE 0x88 |
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#endif
|
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|
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static inline void tcg_out_arith(TCGContext *s, int rd, int rs1, int rs2, |
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int op)
|
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{ |
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tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) | |
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INSN_RS2(rs2)); |
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} |
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|
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static inline void tcg_out_arithi(TCGContext *s, int rd, int rs1, |
287 |
uint32_t offset, int op)
|
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{ |
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tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) | |
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INSN_IMM13(offset)); |
291 |
} |
292 |
|
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static void tcg_out_arithc(TCGContext *s, int rd, int rs1, |
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int val2, int val2const, int op) |
295 |
{ |
296 |
tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) |
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| (val2const ? INSN_IMM13(val2) : INSN_RS2(val2))); |
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} |
299 |
|
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static inline void tcg_out_mov(TCGContext *s, int ret, int arg) |
301 |
{ |
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tcg_out_arith(s, ret, arg, TCG_REG_G0, ARITH_OR); |
303 |
} |
304 |
|
305 |
static inline void tcg_out_sethi(TCGContext *s, int ret, uint32_t arg) |
306 |
{ |
307 |
tcg_out32(s, SETHI | INSN_RD(ret) | ((arg & 0xfffffc00) >> 10)); |
308 |
} |
309 |
|
310 |
static inline void tcg_out_movi_imm13(TCGContext *s, int ret, uint32_t arg) |
311 |
{ |
312 |
tcg_out_arithi(s, ret, TCG_REG_G0, arg, ARITH_OR); |
313 |
} |
314 |
|
315 |
static inline void tcg_out_movi_imm32(TCGContext *s, int ret, uint32_t arg) |
316 |
{ |
317 |
if (check_fit_tl(arg, 13)) |
318 |
tcg_out_movi_imm13(s, ret, arg); |
319 |
else {
|
320 |
tcg_out_sethi(s, ret, arg); |
321 |
if (arg & 0x3ff) |
322 |
tcg_out_arithi(s, ret, ret, arg & 0x3ff, ARITH_OR);
|
323 |
} |
324 |
} |
325 |
|
326 |
static inline void tcg_out_movi(TCGContext *s, TCGType type, |
327 |
int ret, tcg_target_long arg)
|
328 |
{ |
329 |
/* All 32-bit constants, as well as 64-bit constants with
|
330 |
no high bits set go through movi_imm32. */
|
331 |
if (TCG_TARGET_REG_BITS == 32 |
332 |
|| type == TCG_TYPE_I32 |
333 |
|| (arg & ~(tcg_target_long)0xffffffff) == 0) { |
334 |
tcg_out_movi_imm32(s, ret, arg); |
335 |
} else if (check_fit_tl(arg, 13)) { |
336 |
/* A 13-bit constant sign-extended to 64-bits. */
|
337 |
tcg_out_movi_imm13(s, ret, arg); |
338 |
} else if (check_fit_tl(arg, 32)) { |
339 |
/* A 32-bit constant sign-extended to 64-bits. */
|
340 |
tcg_out_sethi(s, ret, ~arg); |
341 |
tcg_out_arithi(s, ret, ret, (arg & 0x3ff) | -0x400, ARITH_XOR); |
342 |
} else {
|
343 |
tcg_out_movi_imm32(s, TCG_REG_I4, arg >> (TCG_TARGET_REG_BITS / 2));
|
344 |
tcg_out_arithi(s, TCG_REG_I4, TCG_REG_I4, 32, SHIFT_SLLX);
|
345 |
tcg_out_movi_imm32(s, ret, arg); |
346 |
tcg_out_arith(s, ret, ret, TCG_REG_I4, ARITH_OR); |
347 |
} |
348 |
} |
349 |
|
350 |
static inline void tcg_out_ld_raw(TCGContext *s, int ret, |
351 |
tcg_target_long arg) |
352 |
{ |
353 |
tcg_out_sethi(s, ret, arg); |
354 |
tcg_out32(s, LDUW | INSN_RD(ret) | INSN_RS1(ret) | |
355 |
INSN_IMM13(arg & 0x3ff));
|
356 |
} |
357 |
|
358 |
static inline void tcg_out_ld_ptr(TCGContext *s, int ret, |
359 |
tcg_target_long arg) |
360 |
{ |
361 |
if (!check_fit_tl(arg, 10)) |
362 |
tcg_out_movi(s, TCG_TYPE_PTR, ret, arg & ~0x3ffULL);
|
363 |
if (TCG_TARGET_REG_BITS == 64) { |
364 |
tcg_out32(s, LDX | INSN_RD(ret) | INSN_RS1(ret) | |
365 |
INSN_IMM13(arg & 0x3ff));
|
366 |
} else {
|
367 |
tcg_out32(s, LDUW | INSN_RD(ret) | INSN_RS1(ret) | |
368 |
INSN_IMM13(arg & 0x3ff));
|
369 |
} |
370 |
} |
371 |
|
372 |
static inline void tcg_out_ldst(TCGContext *s, int ret, int addr, int offset, int op) |
373 |
{ |
374 |
if (check_fit_tl(offset, 13)) |
375 |
tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(addr) | |
376 |
INSN_IMM13(offset)); |
377 |
else {
|
378 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I5, offset); |
379 |
tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(TCG_REG_I5) | |
380 |
INSN_RS2(addr)); |
381 |
} |
382 |
} |
383 |
|
384 |
static inline void tcg_out_ldst_asi(TCGContext *s, int ret, int addr, |
385 |
int offset, int op, int asi) |
386 |
{ |
387 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I5, offset); |
388 |
tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(TCG_REG_I5) | |
389 |
INSN_ASI(asi) | INSN_RS2(addr)); |
390 |
} |
391 |
|
392 |
static inline void tcg_out_ld(TCGContext *s, TCGType type, int ret, |
393 |
int arg1, tcg_target_long arg2)
|
394 |
{ |
395 |
if (type == TCG_TYPE_I32)
|
396 |
tcg_out_ldst(s, ret, arg1, arg2, LDUW); |
397 |
else
|
398 |
tcg_out_ldst(s, ret, arg1, arg2, LDX); |
399 |
} |
400 |
|
401 |
static inline void tcg_out_st(TCGContext *s, TCGType type, int arg, |
402 |
int arg1, tcg_target_long arg2)
|
403 |
{ |
404 |
if (type == TCG_TYPE_I32)
|
405 |
tcg_out_ldst(s, arg, arg1, arg2, STW); |
406 |
else
|
407 |
tcg_out_ldst(s, arg, arg1, arg2, STX); |
408 |
} |
409 |
|
410 |
static inline void tcg_out_sety(TCGContext *s, int rs) |
411 |
{ |
412 |
tcg_out32(s, WRY | INSN_RS1(TCG_REG_G0) | INSN_RS2(rs)); |
413 |
} |
414 |
|
415 |
static inline void tcg_out_rdy(TCGContext *s, int rd) |
416 |
{ |
417 |
tcg_out32(s, RDY | INSN_RD(rd)); |
418 |
} |
419 |
|
420 |
static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val) |
421 |
{ |
422 |
if (val != 0) { |
423 |
if (check_fit_tl(val, 13)) |
424 |
tcg_out_arithi(s, reg, reg, val, ARITH_ADD); |
425 |
else {
|
426 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I5, val); |
427 |
tcg_out_arith(s, reg, reg, TCG_REG_I5, ARITH_ADD); |
428 |
} |
429 |
} |
430 |
} |
431 |
|
432 |
static inline void tcg_out_andi(TCGContext *s, int reg, tcg_target_long val) |
433 |
{ |
434 |
if (val != 0) { |
435 |
if (check_fit_tl(val, 13)) |
436 |
tcg_out_arithi(s, reg, reg, val, ARITH_AND); |
437 |
else {
|
438 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, val); |
439 |
tcg_out_arith(s, reg, reg, TCG_REG_I5, ARITH_AND); |
440 |
} |
441 |
} |
442 |
} |
443 |
|
444 |
static void tcg_out_div32(TCGContext *s, int rd, int rs1, |
445 |
int val2, int val2const, int uns) |
446 |
{ |
447 |
/* Load Y with the sign/zero extension of RS1 to 64-bits. */
|
448 |
if (uns) {
|
449 |
tcg_out_sety(s, TCG_REG_G0); |
450 |
} else {
|
451 |
tcg_out_arithi(s, TCG_REG_I5, rs1, 31, SHIFT_SRA);
|
452 |
tcg_out_sety(s, TCG_REG_I5); |
453 |
} |
454 |
|
455 |
tcg_out_arithc(s, rd, rs1, val2, val2const, |
456 |
uns ? ARITH_UDIV : ARITH_SDIV); |
457 |
} |
458 |
|
459 |
static inline void tcg_out_nop(TCGContext *s) |
460 |
{ |
461 |
tcg_out_sethi(s, TCG_REG_G0, 0);
|
462 |
} |
463 |
|
464 |
static void tcg_out_branch_i32(TCGContext *s, int opc, int label_index) |
465 |
{ |
466 |
int32_t val; |
467 |
TCGLabel *l = &s->labels[label_index]; |
468 |
|
469 |
if (l->has_value) {
|
470 |
val = l->u.value - (tcg_target_long)s->code_ptr; |
471 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x2) |
472 |
| INSN_OFF22(l->u.value - (unsigned long)s->code_ptr))); |
473 |
} else {
|
474 |
tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP22, label_index, 0);
|
475 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x2) | 0)); |
476 |
} |
477 |
} |
478 |
|
479 |
#if TCG_TARGET_REG_BITS == 64 |
480 |
static void tcg_out_branch_i64(TCGContext *s, int opc, int label_index) |
481 |
{ |
482 |
int32_t val; |
483 |
TCGLabel *l = &s->labels[label_index]; |
484 |
|
485 |
if (l->has_value) {
|
486 |
val = l->u.value - (tcg_target_long)s->code_ptr; |
487 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x1) | |
488 |
(0x5 << 19) | |
489 |
INSN_OFF19(l->u.value - (unsigned long)s->code_ptr))); |
490 |
} else {
|
491 |
tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP19, label_index, 0);
|
492 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x1) | |
493 |
(0x5 << 19) | 0)); |
494 |
} |
495 |
} |
496 |
#endif
|
497 |
|
498 |
static const uint8_t tcg_cond_to_bcond[10] = { |
499 |
[TCG_COND_EQ] = COND_E, |
500 |
[TCG_COND_NE] = COND_NE, |
501 |
[TCG_COND_LT] = COND_L, |
502 |
[TCG_COND_GE] = COND_GE, |
503 |
[TCG_COND_LE] = COND_LE, |
504 |
[TCG_COND_GT] = COND_G, |
505 |
[TCG_COND_LTU] = COND_CS, |
506 |
[TCG_COND_GEU] = COND_CC, |
507 |
[TCG_COND_LEU] = COND_LEU, |
508 |
[TCG_COND_GTU] = COND_GU, |
509 |
}; |
510 |
|
511 |
static void tcg_out_cmp(TCGContext *s, TCGArg c1, TCGArg c2, int c2const) |
512 |
{ |
513 |
tcg_out_arithc(s, TCG_REG_G0, c1, c2, c2const, ARITH_SUBCC); |
514 |
} |
515 |
|
516 |
static void tcg_out_brcond_i32(TCGContext *s, int cond, |
517 |
TCGArg arg1, TCGArg arg2, int const_arg2,
|
518 |
int label_index)
|
519 |
{ |
520 |
tcg_out_cmp(s, arg1, arg2, const_arg2); |
521 |
tcg_out_branch_i32(s, tcg_cond_to_bcond[cond], label_index); |
522 |
tcg_out_nop(s); |
523 |
} |
524 |
|
525 |
#if TCG_TARGET_REG_BITS == 64 |
526 |
static void tcg_out_brcond_i64(TCGContext *s, int cond, |
527 |
TCGArg arg1, TCGArg arg2, int const_arg2,
|
528 |
int label_index)
|
529 |
{ |
530 |
tcg_out_cmp(s, arg1, arg2, const_arg2); |
531 |
tcg_out_branch_i64(s, tcg_cond_to_bcond[cond], label_index); |
532 |
tcg_out_nop(s); |
533 |
} |
534 |
#else
|
535 |
static void tcg_out_brcond2_i32(TCGContext *s, int cond, |
536 |
TCGArg al, TCGArg ah, |
537 |
TCGArg bl, int blconst,
|
538 |
TCGArg bh, int bhconst, int label_dest) |
539 |
{ |
540 |
int cc, label_next = gen_new_label();
|
541 |
|
542 |
tcg_out_cmp(s, ah, bh, bhconst); |
543 |
|
544 |
/* Note that we fill one of the delay slots with the second compare. */
|
545 |
switch (cond) {
|
546 |
case TCG_COND_EQ:
|
547 |
cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_NE], 0);
|
548 |
tcg_out_branch_i32(s, cc, label_next); |
549 |
tcg_out_cmp(s, al, bl, blconst); |
550 |
cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_EQ], 0);
|
551 |
tcg_out_branch_i32(s, cc, label_dest); |
552 |
break;
|
553 |
|
554 |
case TCG_COND_NE:
|
555 |
cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_NE], 0);
|
556 |
tcg_out_branch_i32(s, cc, label_dest); |
557 |
tcg_out_cmp(s, al, bl, blconst); |
558 |
tcg_out_branch_i32(s, cc, label_dest); |
559 |
break;
|
560 |
|
561 |
default:
|
562 |
/* ??? One could fairly easily special-case 64-bit unsigned
|
563 |
compares against 32-bit zero-extended constants. For instance,
|
564 |
we know that (unsigned)AH < 0 is false and need not emit it.
|
565 |
Similarly, (unsigned)AH > 0 being true implies AH != 0, so the
|
566 |
second branch will never be taken. */
|
567 |
cc = INSN_COND(tcg_cond_to_bcond[cond], 0);
|
568 |
tcg_out_branch_i32(s, cc, label_dest); |
569 |
tcg_out_nop(s); |
570 |
cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_NE], 0);
|
571 |
tcg_out_branch_i32(s, cc, label_next); |
572 |
tcg_out_cmp(s, al, bl, blconst); |
573 |
cc = INSN_COND(tcg_cond_to_bcond[tcg_unsigned_cond(cond)], 0);
|
574 |
tcg_out_branch_i32(s, cc, label_dest); |
575 |
break;
|
576 |
} |
577 |
tcg_out_nop(s); |
578 |
|
579 |
tcg_out_label(s, label_next, (tcg_target_long)s->code_ptr); |
580 |
} |
581 |
#endif
|
582 |
|
583 |
/* Generate global QEMU prologue and epilogue code */
|
584 |
void tcg_target_qemu_prologue(TCGContext *s)
|
585 |
{ |
586 |
tcg_out32(s, SAVE | INSN_RD(TCG_REG_O6) | INSN_RS1(TCG_REG_O6) | |
587 |
INSN_IMM13(-TCG_TARGET_STACK_MINFRAME)); |
588 |
tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I0) | |
589 |
INSN_RS2(TCG_REG_G0)); |
590 |
tcg_out_nop(s); |
591 |
} |
592 |
|
593 |
#if defined(CONFIG_SOFTMMU)
|
594 |
|
595 |
#include "../../softmmu_defs.h" |
596 |
|
597 |
static const void * const qemu_ld_helpers[4] = { |
598 |
__ldb_mmu, |
599 |
__ldw_mmu, |
600 |
__ldl_mmu, |
601 |
__ldq_mmu, |
602 |
}; |
603 |
|
604 |
static const void * const qemu_st_helpers[4] = { |
605 |
__stb_mmu, |
606 |
__stw_mmu, |
607 |
__stl_mmu, |
608 |
__stq_mmu, |
609 |
}; |
610 |
#endif
|
611 |
|
612 |
#if TARGET_LONG_BITS == 32 |
613 |
#define TARGET_LD_OP LDUW
|
614 |
#else
|
615 |
#define TARGET_LD_OP LDX
|
616 |
#endif
|
617 |
|
618 |
#if TARGET_PHYS_ADDR_BITS == 32 |
619 |
#define TARGET_ADDEND_LD_OP LDUW
|
620 |
#else
|
621 |
#define TARGET_ADDEND_LD_OP LDX
|
622 |
#endif
|
623 |
|
624 |
#ifdef __arch64__
|
625 |
#define HOST_LD_OP LDX
|
626 |
#define HOST_ST_OP STX
|
627 |
#define HOST_SLL_OP SHIFT_SLLX
|
628 |
#define HOST_SRA_OP SHIFT_SRAX
|
629 |
#else
|
630 |
#define HOST_LD_OP LDUW
|
631 |
#define HOST_ST_OP STW
|
632 |
#define HOST_SLL_OP SHIFT_SLL
|
633 |
#define HOST_SRA_OP SHIFT_SRA
|
634 |
#endif
|
635 |
|
636 |
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, |
637 |
int opc)
|
638 |
{ |
639 |
int addr_reg, data_reg, arg0, arg1, arg2, mem_index, s_bits;
|
640 |
#if defined(CONFIG_SOFTMMU)
|
641 |
uint32_t *label1_ptr, *label2_ptr; |
642 |
#endif
|
643 |
|
644 |
data_reg = *args++; |
645 |
addr_reg = *args++; |
646 |
mem_index = *args; |
647 |
s_bits = opc & 3;
|
648 |
|
649 |
arg0 = TCG_REG_O0; |
650 |
arg1 = TCG_REG_O1; |
651 |
arg2 = TCG_REG_O2; |
652 |
|
653 |
#if defined(CONFIG_SOFTMMU)
|
654 |
/* srl addr_reg, x, arg1 */
|
655 |
tcg_out_arithi(s, arg1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS, |
656 |
SHIFT_SRL); |
657 |
/* and addr_reg, x, arg0 */
|
658 |
tcg_out_arithi(s, arg0, addr_reg, TARGET_PAGE_MASK | ((1 << s_bits) - 1), |
659 |
ARITH_AND); |
660 |
|
661 |
/* and arg1, x, arg1 */
|
662 |
tcg_out_andi(s, arg1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
|
663 |
|
664 |
/* add arg1, x, arg1 */
|
665 |
tcg_out_addi(s, arg1, offsetof(CPUState, |
666 |
tlb_table[mem_index][0].addr_read));
|
667 |
|
668 |
/* add env, arg1, arg1 */
|
669 |
tcg_out_arith(s, arg1, TCG_AREG0, arg1, ARITH_ADD); |
670 |
|
671 |
/* ld [arg1], arg2 */
|
672 |
tcg_out32(s, TARGET_LD_OP | INSN_RD(arg2) | INSN_RS1(arg1) | |
673 |
INSN_RS2(TCG_REG_G0)); |
674 |
|
675 |
/* subcc arg0, arg2, %g0 */
|
676 |
tcg_out_arith(s, TCG_REG_G0, arg0, arg2, ARITH_SUBCC); |
677 |
|
678 |
/* will become:
|
679 |
be label1
|
680 |
or
|
681 |
be,pt %xcc label1 */
|
682 |
label1_ptr = (uint32_t *)s->code_ptr; |
683 |
tcg_out32(s, 0);
|
684 |
|
685 |
/* mov (delay slot) */
|
686 |
tcg_out_mov(s, arg0, addr_reg); |
687 |
|
688 |
/* mov */
|
689 |
tcg_out_movi(s, TCG_TYPE_I32, arg1, mem_index); |
690 |
|
691 |
/* XXX: move that code at the end of the TB */
|
692 |
/* qemu_ld_helper[s_bits](arg0, arg1) */
|
693 |
tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_ld_helpers[s_bits] |
694 |
- (tcg_target_ulong)s->code_ptr) >> 2)
|
695 |
& 0x3fffffff));
|
696 |
/* Store AREG0 in stack to avoid ugly glibc bugs that mangle
|
697 |
global registers */
|
698 |
// delay slot
|
699 |
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
700 |
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
701 |
sizeof(long), HOST_ST_OP); |
702 |
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
703 |
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
704 |
sizeof(long), HOST_LD_OP); |
705 |
|
706 |
/* data_reg = sign_extend(arg0) */
|
707 |
switch(opc) {
|
708 |
case 0 | 4: |
709 |
/* sll arg0, 24/56, data_reg */
|
710 |
tcg_out_arithi(s, data_reg, arg0, (int)sizeof(tcg_target_long) * 8 - 8, |
711 |
HOST_SLL_OP); |
712 |
/* sra data_reg, 24/56, data_reg */
|
713 |
tcg_out_arithi(s, data_reg, data_reg, |
714 |
(int)sizeof(tcg_target_long) * 8 - 8, HOST_SRA_OP); |
715 |
break;
|
716 |
case 1 | 4: |
717 |
/* sll arg0, 16/48, data_reg */
|
718 |
tcg_out_arithi(s, data_reg, arg0, |
719 |
(int)sizeof(tcg_target_long) * 8 - 16, HOST_SLL_OP); |
720 |
/* sra data_reg, 16/48, data_reg */
|
721 |
tcg_out_arithi(s, data_reg, data_reg, |
722 |
(int)sizeof(tcg_target_long) * 8 - 16, HOST_SRA_OP); |
723 |
break;
|
724 |
case 2 | 4: |
725 |
/* sll arg0, 32, data_reg */
|
726 |
tcg_out_arithi(s, data_reg, arg0, 32, HOST_SLL_OP);
|
727 |
/* sra data_reg, 32, data_reg */
|
728 |
tcg_out_arithi(s, data_reg, data_reg, 32, HOST_SRA_OP);
|
729 |
break;
|
730 |
case 0: |
731 |
case 1: |
732 |
case 2: |
733 |
case 3: |
734 |
default:
|
735 |
/* mov */
|
736 |
tcg_out_mov(s, data_reg, arg0); |
737 |
break;
|
738 |
} |
739 |
|
740 |
/* will become:
|
741 |
ba label2 */
|
742 |
label2_ptr = (uint32_t *)s->code_ptr; |
743 |
tcg_out32(s, 0);
|
744 |
|
745 |
/* nop (delay slot */
|
746 |
tcg_out_nop(s); |
747 |
|
748 |
/* label1: */
|
749 |
#if TARGET_LONG_BITS == 32 |
750 |
/* be label1 */
|
751 |
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x2) | |
752 |
INSN_OFF22((unsigned long)s->code_ptr - |
753 |
(unsigned long)label1_ptr)); |
754 |
#else
|
755 |
/* be,pt %xcc label1 */
|
756 |
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x1) | |
757 |
(0x5 << 19) | INSN_OFF19((unsigned long)s->code_ptr - |
758 |
(unsigned long)label1_ptr)); |
759 |
#endif
|
760 |
|
761 |
/* ld [arg1 + x], arg1 */
|
762 |
tcg_out_ldst(s, arg1, arg1, offsetof(CPUTLBEntry, addend) - |
763 |
offsetof(CPUTLBEntry, addr_read), TARGET_ADDEND_LD_OP); |
764 |
|
765 |
#if TARGET_LONG_BITS == 32 |
766 |
/* and addr_reg, x, arg0 */
|
767 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, 0xffffffff);
|
768 |
tcg_out_arith(s, arg0, addr_reg, TCG_REG_I5, ARITH_AND); |
769 |
/* add arg0, arg1, arg0 */
|
770 |
tcg_out_arith(s, arg0, arg0, arg1, ARITH_ADD); |
771 |
#else
|
772 |
/* add addr_reg, arg1, arg0 */
|
773 |
tcg_out_arith(s, arg0, addr_reg, arg1, ARITH_ADD); |
774 |
#endif
|
775 |
|
776 |
#else
|
777 |
arg0 = addr_reg; |
778 |
#endif
|
779 |
|
780 |
switch(opc) {
|
781 |
case 0: |
782 |
/* ldub [arg0], data_reg */
|
783 |
tcg_out_ldst(s, data_reg, arg0, 0, LDUB);
|
784 |
break;
|
785 |
case 0 | 4: |
786 |
/* ldsb [arg0], data_reg */
|
787 |
tcg_out_ldst(s, data_reg, arg0, 0, LDSB);
|
788 |
break;
|
789 |
case 1: |
790 |
#ifdef TARGET_WORDS_BIGENDIAN
|
791 |
/* lduh [arg0], data_reg */
|
792 |
tcg_out_ldst(s, data_reg, arg0, 0, LDUH);
|
793 |
#else
|
794 |
/* lduha [arg0] ASI_PRIMARY_LITTLE, data_reg */
|
795 |
tcg_out_ldst_asi(s, data_reg, arg0, 0, LDUHA, ASI_PRIMARY_LITTLE);
|
796 |
#endif
|
797 |
break;
|
798 |
case 1 | 4: |
799 |
#ifdef TARGET_WORDS_BIGENDIAN
|
800 |
/* ldsh [arg0], data_reg */
|
801 |
tcg_out_ldst(s, data_reg, arg0, 0, LDSH);
|
802 |
#else
|
803 |
/* ldsha [arg0] ASI_PRIMARY_LITTLE, data_reg */
|
804 |
tcg_out_ldst_asi(s, data_reg, arg0, 0, LDSHA, ASI_PRIMARY_LITTLE);
|
805 |
#endif
|
806 |
break;
|
807 |
case 2: |
808 |
#ifdef TARGET_WORDS_BIGENDIAN
|
809 |
/* lduw [arg0], data_reg */
|
810 |
tcg_out_ldst(s, data_reg, arg0, 0, LDUW);
|
811 |
#else
|
812 |
/* lduwa [arg0] ASI_PRIMARY_LITTLE, data_reg */
|
813 |
tcg_out_ldst_asi(s, data_reg, arg0, 0, LDUWA, ASI_PRIMARY_LITTLE);
|
814 |
#endif
|
815 |
break;
|
816 |
case 2 | 4: |
817 |
#ifdef TARGET_WORDS_BIGENDIAN
|
818 |
/* ldsw [arg0], data_reg */
|
819 |
tcg_out_ldst(s, data_reg, arg0, 0, LDSW);
|
820 |
#else
|
821 |
/* ldswa [arg0] ASI_PRIMARY_LITTLE, data_reg */
|
822 |
tcg_out_ldst_asi(s, data_reg, arg0, 0, LDSWA, ASI_PRIMARY_LITTLE);
|
823 |
#endif
|
824 |
break;
|
825 |
case 3: |
826 |
#ifdef TARGET_WORDS_BIGENDIAN
|
827 |
/* ldx [arg0], data_reg */
|
828 |
tcg_out_ldst(s, data_reg, arg0, 0, LDX);
|
829 |
#else
|
830 |
/* ldxa [arg0] ASI_PRIMARY_LITTLE, data_reg */
|
831 |
tcg_out_ldst_asi(s, data_reg, arg0, 0, LDXA, ASI_PRIMARY_LITTLE);
|
832 |
#endif
|
833 |
break;
|
834 |
default:
|
835 |
tcg_abort(); |
836 |
} |
837 |
|
838 |
#if defined(CONFIG_SOFTMMU)
|
839 |
/* label2: */
|
840 |
*label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) | |
841 |
INSN_OFF22((unsigned long)s->code_ptr - |
842 |
(unsigned long)label2_ptr)); |
843 |
#endif
|
844 |
} |
845 |
|
846 |
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, |
847 |
int opc)
|
848 |
{ |
849 |
int addr_reg, data_reg, arg0, arg1, arg2, mem_index, s_bits;
|
850 |
#if defined(CONFIG_SOFTMMU)
|
851 |
uint32_t *label1_ptr, *label2_ptr; |
852 |
#endif
|
853 |
|
854 |
data_reg = *args++; |
855 |
addr_reg = *args++; |
856 |
mem_index = *args; |
857 |
|
858 |
s_bits = opc; |
859 |
|
860 |
arg0 = TCG_REG_O0; |
861 |
arg1 = TCG_REG_O1; |
862 |
arg2 = TCG_REG_O2; |
863 |
|
864 |
#if defined(CONFIG_SOFTMMU)
|
865 |
/* srl addr_reg, x, arg1 */
|
866 |
tcg_out_arithi(s, arg1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS, |
867 |
SHIFT_SRL); |
868 |
|
869 |
/* and addr_reg, x, arg0 */
|
870 |
tcg_out_arithi(s, arg0, addr_reg, TARGET_PAGE_MASK | ((1 << s_bits) - 1), |
871 |
ARITH_AND); |
872 |
|
873 |
/* and arg1, x, arg1 */
|
874 |
tcg_out_andi(s, arg1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
|
875 |
|
876 |
/* add arg1, x, arg1 */
|
877 |
tcg_out_addi(s, arg1, offsetof(CPUState, |
878 |
tlb_table[mem_index][0].addr_write));
|
879 |
|
880 |
/* add env, arg1, arg1 */
|
881 |
tcg_out_arith(s, arg1, TCG_AREG0, arg1, ARITH_ADD); |
882 |
|
883 |
/* ld [arg1], arg2 */
|
884 |
tcg_out32(s, TARGET_LD_OP | INSN_RD(arg2) | INSN_RS1(arg1) | |
885 |
INSN_RS2(TCG_REG_G0)); |
886 |
|
887 |
/* subcc arg0, arg2, %g0 */
|
888 |
tcg_out_arith(s, TCG_REG_G0, arg0, arg2, ARITH_SUBCC); |
889 |
|
890 |
/* will become:
|
891 |
be label1
|
892 |
or
|
893 |
be,pt %xcc label1 */
|
894 |
label1_ptr = (uint32_t *)s->code_ptr; |
895 |
tcg_out32(s, 0);
|
896 |
|
897 |
/* mov (delay slot) */
|
898 |
tcg_out_mov(s, arg0, addr_reg); |
899 |
|
900 |
/* mov */
|
901 |
tcg_out_mov(s, arg1, data_reg); |
902 |
|
903 |
/* mov */
|
904 |
tcg_out_movi(s, TCG_TYPE_I32, arg2, mem_index); |
905 |
|
906 |
/* XXX: move that code at the end of the TB */
|
907 |
/* qemu_st_helper[s_bits](arg0, arg1, arg2) */
|
908 |
tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_st_helpers[s_bits] |
909 |
- (tcg_target_ulong)s->code_ptr) >> 2)
|
910 |
& 0x3fffffff));
|
911 |
/* Store AREG0 in stack to avoid ugly glibc bugs that mangle
|
912 |
global registers */
|
913 |
// delay slot
|
914 |
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
915 |
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
916 |
sizeof(long), HOST_ST_OP); |
917 |
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
918 |
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
919 |
sizeof(long), HOST_LD_OP); |
920 |
|
921 |
/* will become:
|
922 |
ba label2 */
|
923 |
label2_ptr = (uint32_t *)s->code_ptr; |
924 |
tcg_out32(s, 0);
|
925 |
|
926 |
/* nop (delay slot) */
|
927 |
tcg_out_nop(s); |
928 |
|
929 |
#if TARGET_LONG_BITS == 32 |
930 |
/* be label1 */
|
931 |
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x2) | |
932 |
INSN_OFF22((unsigned long)s->code_ptr - |
933 |
(unsigned long)label1_ptr)); |
934 |
#else
|
935 |
/* be,pt %xcc label1 */
|
936 |
*label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x1) | |
937 |
(0x5 << 19) | INSN_OFF19((unsigned long)s->code_ptr - |
938 |
(unsigned long)label1_ptr)); |
939 |
#endif
|
940 |
|
941 |
/* ld [arg1 + x], arg1 */
|
942 |
tcg_out_ldst(s, arg1, arg1, offsetof(CPUTLBEntry, addend) - |
943 |
offsetof(CPUTLBEntry, addr_write), TARGET_ADDEND_LD_OP); |
944 |
|
945 |
#if TARGET_LONG_BITS == 32 |
946 |
/* and addr_reg, x, arg0 */
|
947 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, 0xffffffff);
|
948 |
tcg_out_arith(s, arg0, addr_reg, TCG_REG_I5, ARITH_AND); |
949 |
/* add arg0, arg1, arg0 */
|
950 |
tcg_out_arith(s, arg0, arg0, arg1, ARITH_ADD); |
951 |
#else
|
952 |
/* add addr_reg, arg1, arg0 */
|
953 |
tcg_out_arith(s, arg0, addr_reg, arg1, ARITH_ADD); |
954 |
#endif
|
955 |
|
956 |
#else
|
957 |
arg0 = addr_reg; |
958 |
#endif
|
959 |
|
960 |
switch(opc) {
|
961 |
case 0: |
962 |
/* stb data_reg, [arg0] */
|
963 |
tcg_out_ldst(s, data_reg, arg0, 0, STB);
|
964 |
break;
|
965 |
case 1: |
966 |
#ifdef TARGET_WORDS_BIGENDIAN
|
967 |
/* sth data_reg, [arg0] */
|
968 |
tcg_out_ldst(s, data_reg, arg0, 0, STH);
|
969 |
#else
|
970 |
/* stha data_reg, [arg0] ASI_PRIMARY_LITTLE */
|
971 |
tcg_out_ldst_asi(s, data_reg, arg0, 0, STHA, ASI_PRIMARY_LITTLE);
|
972 |
#endif
|
973 |
break;
|
974 |
case 2: |
975 |
#ifdef TARGET_WORDS_BIGENDIAN
|
976 |
/* stw data_reg, [arg0] */
|
977 |
tcg_out_ldst(s, data_reg, arg0, 0, STW);
|
978 |
#else
|
979 |
/* stwa data_reg, [arg0] ASI_PRIMARY_LITTLE */
|
980 |
tcg_out_ldst_asi(s, data_reg, arg0, 0, STWA, ASI_PRIMARY_LITTLE);
|
981 |
#endif
|
982 |
break;
|
983 |
case 3: |
984 |
#ifdef TARGET_WORDS_BIGENDIAN
|
985 |
/* stx data_reg, [arg0] */
|
986 |
tcg_out_ldst(s, data_reg, arg0, 0, STX);
|
987 |
#else
|
988 |
/* stxa data_reg, [arg0] ASI_PRIMARY_LITTLE */
|
989 |
tcg_out_ldst_asi(s, data_reg, arg0, 0, STXA, ASI_PRIMARY_LITTLE);
|
990 |
#endif
|
991 |
break;
|
992 |
default:
|
993 |
tcg_abort(); |
994 |
} |
995 |
|
996 |
#if defined(CONFIG_SOFTMMU)
|
997 |
/* label2: */
|
998 |
*label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) | |
999 |
INSN_OFF22((unsigned long)s->code_ptr - |
1000 |
(unsigned long)label2_ptr)); |
1001 |
#endif
|
1002 |
} |
1003 |
|
1004 |
static inline void tcg_out_op(TCGContext *s, int opc, const TCGArg *args, |
1005 |
const int *const_args) |
1006 |
{ |
1007 |
int c;
|
1008 |
|
1009 |
switch (opc) {
|
1010 |
case INDEX_op_exit_tb:
|
1011 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I0, args[0]);
|
1012 |
tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I7) | |
1013 |
INSN_IMM13(8));
|
1014 |
tcg_out32(s, RESTORE | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_G0) | |
1015 |
INSN_RS2(TCG_REG_G0)); |
1016 |
break;
|
1017 |
case INDEX_op_goto_tb:
|
1018 |
if (s->tb_jmp_offset) {
|
1019 |
/* direct jump method */
|
1020 |
tcg_out_sethi(s, TCG_REG_I5, args[0] & 0xffffe000); |
1021 |
tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I5) | |
1022 |
INSN_IMM13((args[0] & 0x1fff))); |
1023 |
s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
|
1024 |
} else {
|
1025 |
/* indirect jump method */
|
1026 |
tcg_out_ld_ptr(s, TCG_REG_I5, (tcg_target_long)(s->tb_next + args[0]));
|
1027 |
tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I5) | |
1028 |
INSN_RS2(TCG_REG_G0)); |
1029 |
} |
1030 |
tcg_out_nop(s); |
1031 |
s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
|
1032 |
break;
|
1033 |
case INDEX_op_call:
|
1034 |
if (const_args[0]) |
1035 |
tcg_out32(s, CALL | ((((tcg_target_ulong)args[0]
|
1036 |
- (tcg_target_ulong)s->code_ptr) >> 2)
|
1037 |
& 0x3fffffff));
|
1038 |
else {
|
1039 |
tcg_out_ld_ptr(s, TCG_REG_I5, |
1040 |
(tcg_target_long)(s->tb_next + args[0]));
|
1041 |
tcg_out32(s, JMPL | INSN_RD(TCG_REG_O7) | INSN_RS1(TCG_REG_I5) | |
1042 |
INSN_RS2(TCG_REG_G0)); |
1043 |
} |
1044 |
/* Store AREG0 in stack to avoid ugly glibc bugs that mangle
|
1045 |
global registers */
|
1046 |
// delay slot
|
1047 |
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
1048 |
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
1049 |
sizeof(long), HOST_ST_OP); |
1050 |
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
1051 |
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
1052 |
sizeof(long), HOST_LD_OP); |
1053 |
break;
|
1054 |
case INDEX_op_jmp:
|
1055 |
case INDEX_op_br:
|
1056 |
tcg_out_branch_i32(s, COND_A, args[0]);
|
1057 |
tcg_out_nop(s); |
1058 |
break;
|
1059 |
case INDEX_op_movi_i32:
|
1060 |
tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]); |
1061 |
break;
|
1062 |
|
1063 |
#if TCG_TARGET_REG_BITS == 64 |
1064 |
#define OP_32_64(x) \
|
1065 |
glue(glue(case INDEX_op_, x), _i32): \
|
1066 |
glue(glue(case INDEX_op_, x), _i64)
|
1067 |
#else
|
1068 |
#define OP_32_64(x) \
|
1069 |
glue(glue(case INDEX_op_, x), _i32)
|
1070 |
#endif
|
1071 |
OP_32_64(ld8u): |
1072 |
tcg_out_ldst(s, args[0], args[1], args[2], LDUB); |
1073 |
break;
|
1074 |
OP_32_64(ld8s): |
1075 |
tcg_out_ldst(s, args[0], args[1], args[2], LDSB); |
1076 |
break;
|
1077 |
OP_32_64(ld16u): |
1078 |
tcg_out_ldst(s, args[0], args[1], args[2], LDUH); |
1079 |
break;
|
1080 |
OP_32_64(ld16s): |
1081 |
tcg_out_ldst(s, args[0], args[1], args[2], LDSH); |
1082 |
break;
|
1083 |
case INDEX_op_ld_i32:
|
1084 |
#if TCG_TARGET_REG_BITS == 64 |
1085 |
case INDEX_op_ld32u_i64:
|
1086 |
#endif
|
1087 |
tcg_out_ldst(s, args[0], args[1], args[2], LDUW); |
1088 |
break;
|
1089 |
OP_32_64(st8): |
1090 |
tcg_out_ldst(s, args[0], args[1], args[2], STB); |
1091 |
break;
|
1092 |
OP_32_64(st16): |
1093 |
tcg_out_ldst(s, args[0], args[1], args[2], STH); |
1094 |
break;
|
1095 |
case INDEX_op_st_i32:
|
1096 |
#if TCG_TARGET_REG_BITS == 64 |
1097 |
case INDEX_op_st32_i64:
|
1098 |
#endif
|
1099 |
tcg_out_ldst(s, args[0], args[1], args[2], STW); |
1100 |
break;
|
1101 |
OP_32_64(add): |
1102 |
c = ARITH_ADD; |
1103 |
goto gen_arith;
|
1104 |
OP_32_64(sub): |
1105 |
c = ARITH_SUB; |
1106 |
goto gen_arith;
|
1107 |
OP_32_64(and): |
1108 |
c = ARITH_AND; |
1109 |
goto gen_arith;
|
1110 |
OP_32_64(or): |
1111 |
c = ARITH_OR; |
1112 |
goto gen_arith;
|
1113 |
OP_32_64(xor): |
1114 |
c = ARITH_XOR; |
1115 |
goto gen_arith;
|
1116 |
case INDEX_op_shl_i32:
|
1117 |
c = SHIFT_SLL; |
1118 |
goto gen_arith;
|
1119 |
case INDEX_op_shr_i32:
|
1120 |
c = SHIFT_SRL; |
1121 |
goto gen_arith;
|
1122 |
case INDEX_op_sar_i32:
|
1123 |
c = SHIFT_SRA; |
1124 |
goto gen_arith;
|
1125 |
case INDEX_op_mul_i32:
|
1126 |
c = ARITH_UMUL; |
1127 |
goto gen_arith;
|
1128 |
|
1129 |
case INDEX_op_div_i32:
|
1130 |
tcg_out_div32(s, args[0], args[1], args[2], const_args[2], 0); |
1131 |
break;
|
1132 |
case INDEX_op_divu_i32:
|
1133 |
tcg_out_div32(s, args[0], args[1], args[2], const_args[2], 1); |
1134 |
break;
|
1135 |
|
1136 |
case INDEX_op_rem_i32:
|
1137 |
case INDEX_op_remu_i32:
|
1138 |
tcg_out_div32(s, TCG_REG_I5, args[1], args[2], const_args[2], |
1139 |
opc == INDEX_op_remu_i32); |
1140 |
tcg_out_arithc(s, TCG_REG_I5, TCG_REG_I5, args[2], const_args[2], |
1141 |
ARITH_UMUL); |
1142 |
tcg_out_arith(s, args[0], args[1], TCG_REG_I5, ARITH_SUB); |
1143 |
break;
|
1144 |
|
1145 |
case INDEX_op_brcond_i32:
|
1146 |
tcg_out_brcond_i32(s, args[2], args[0], args[1], const_args[1], |
1147 |
args[3]);
|
1148 |
break;
|
1149 |
#if TCG_TARGET_REG_BITS == 32 |
1150 |
case INDEX_op_brcond2_i32:
|
1151 |
tcg_out_brcond2_i32(s, args[4], args[0], args[1], |
1152 |
args[2], const_args[2], |
1153 |
args[3], const_args[3], args[5]); |
1154 |
break;
|
1155 |
case INDEX_op_add2_i32:
|
1156 |
tcg_out_arithc(s, args[0], args[2], args[4], const_args[4], |
1157 |
ARITH_ADDCC); |
1158 |
tcg_out_arithc(s, args[1], args[3], args[5], const_args[5], |
1159 |
ARITH_ADDX); |
1160 |
break;
|
1161 |
case INDEX_op_sub2_i32:
|
1162 |
tcg_out_arithc(s, args[0], args[2], args[4], const_args[4], |
1163 |
ARITH_SUBCC); |
1164 |
tcg_out_arithc(s, args[1], args[3], args[5], const_args[5], |
1165 |
ARITH_SUBX); |
1166 |
break;
|
1167 |
case INDEX_op_mulu2_i32:
|
1168 |
tcg_out_arithc(s, args[0], args[2], args[3], const_args[3], |
1169 |
ARITH_UMUL); |
1170 |
tcg_out_rdy(s, args[1]);
|
1171 |
break;
|
1172 |
#endif
|
1173 |
|
1174 |
case INDEX_op_qemu_ld8u:
|
1175 |
tcg_out_qemu_ld(s, args, 0);
|
1176 |
break;
|
1177 |
case INDEX_op_qemu_ld8s:
|
1178 |
tcg_out_qemu_ld(s, args, 0 | 4); |
1179 |
break;
|
1180 |
case INDEX_op_qemu_ld16u:
|
1181 |
tcg_out_qemu_ld(s, args, 1);
|
1182 |
break;
|
1183 |
case INDEX_op_qemu_ld16s:
|
1184 |
tcg_out_qemu_ld(s, args, 1 | 4); |
1185 |
break;
|
1186 |
case INDEX_op_qemu_ld32u:
|
1187 |
tcg_out_qemu_ld(s, args, 2);
|
1188 |
break;
|
1189 |
case INDEX_op_qemu_ld32s:
|
1190 |
tcg_out_qemu_ld(s, args, 2 | 4); |
1191 |
break;
|
1192 |
case INDEX_op_qemu_st8:
|
1193 |
tcg_out_qemu_st(s, args, 0);
|
1194 |
break;
|
1195 |
case INDEX_op_qemu_st16:
|
1196 |
tcg_out_qemu_st(s, args, 1);
|
1197 |
break;
|
1198 |
case INDEX_op_qemu_st32:
|
1199 |
tcg_out_qemu_st(s, args, 2);
|
1200 |
break;
|
1201 |
|
1202 |
#if TCG_TARGET_REG_BITS == 64 |
1203 |
case INDEX_op_movi_i64:
|
1204 |
tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]); |
1205 |
break;
|
1206 |
case INDEX_op_ld32s_i64:
|
1207 |
tcg_out_ldst(s, args[0], args[1], args[2], LDSW); |
1208 |
break;
|
1209 |
case INDEX_op_ld_i64:
|
1210 |
tcg_out_ldst(s, args[0], args[1], args[2], LDX); |
1211 |
break;
|
1212 |
case INDEX_op_st_i64:
|
1213 |
tcg_out_ldst(s, args[0], args[1], args[2], STX); |
1214 |
break;
|
1215 |
case INDEX_op_shl_i64:
|
1216 |
c = SHIFT_SLLX; |
1217 |
goto gen_arith;
|
1218 |
case INDEX_op_shr_i64:
|
1219 |
c = SHIFT_SRLX; |
1220 |
goto gen_arith;
|
1221 |
case INDEX_op_sar_i64:
|
1222 |
c = SHIFT_SRAX; |
1223 |
goto gen_arith;
|
1224 |
case INDEX_op_mul_i64:
|
1225 |
c = ARITH_MULX; |
1226 |
goto gen_arith;
|
1227 |
case INDEX_op_div_i64:
|
1228 |
c = ARITH_SDIVX; |
1229 |
goto gen_arith;
|
1230 |
case INDEX_op_divu_i64:
|
1231 |
c = ARITH_UDIVX; |
1232 |
goto gen_arith;
|
1233 |
case INDEX_op_rem_i64:
|
1234 |
case INDEX_op_remu_i64:
|
1235 |
tcg_out_arithc(s, TCG_REG_I5, args[1], args[2], const_args[2], |
1236 |
opc == INDEX_op_rem_i64 ? ARITH_SDIVX : ARITH_UDIVX); |
1237 |
tcg_out_arithc(s, TCG_REG_I5, TCG_REG_I5, args[2], const_args[2], |
1238 |
ARITH_MULX); |
1239 |
tcg_out_arith(s, args[0], args[1], TCG_REG_I5, ARITH_SUB); |
1240 |
break;
|
1241 |
|
1242 |
case INDEX_op_brcond_i64:
|
1243 |
tcg_out_brcond_i64(s, args[2], args[0], args[1], const_args[1], |
1244 |
args[3]);
|
1245 |
break;
|
1246 |
case INDEX_op_qemu_ld64:
|
1247 |
tcg_out_qemu_ld(s, args, 3);
|
1248 |
break;
|
1249 |
case INDEX_op_qemu_st64:
|
1250 |
tcg_out_qemu_st(s, args, 3);
|
1251 |
break;
|
1252 |
|
1253 |
#endif
|
1254 |
gen_arith:
|
1255 |
tcg_out_arithc(s, args[0], args[1], args[2], const_args[2], c); |
1256 |
break;
|
1257 |
|
1258 |
default:
|
1259 |
fprintf(stderr, "unknown opcode 0x%x\n", opc);
|
1260 |
tcg_abort(); |
1261 |
} |
1262 |
} |
1263 |
|
1264 |
static const TCGTargetOpDef sparc_op_defs[] = { |
1265 |
{ INDEX_op_exit_tb, { } }, |
1266 |
{ INDEX_op_goto_tb, { } }, |
1267 |
{ INDEX_op_call, { "ri" } },
|
1268 |
{ INDEX_op_jmp, { "ri" } },
|
1269 |
{ INDEX_op_br, { } }, |
1270 |
|
1271 |
{ INDEX_op_mov_i32, { "r", "r" } }, |
1272 |
{ INDEX_op_movi_i32, { "r" } },
|
1273 |
{ INDEX_op_ld8u_i32, { "r", "r" } }, |
1274 |
{ INDEX_op_ld8s_i32, { "r", "r" } }, |
1275 |
{ INDEX_op_ld16u_i32, { "r", "r" } }, |
1276 |
{ INDEX_op_ld16s_i32, { "r", "r" } }, |
1277 |
{ INDEX_op_ld_i32, { "r", "r" } }, |
1278 |
{ INDEX_op_st8_i32, { "r", "r" } }, |
1279 |
{ INDEX_op_st16_i32, { "r", "r" } }, |
1280 |
{ INDEX_op_st_i32, { "r", "r" } }, |
1281 |
|
1282 |
{ INDEX_op_add_i32, { "r", "r", "rJ" } }, |
1283 |
{ INDEX_op_mul_i32, { "r", "r", "rJ" } }, |
1284 |
{ INDEX_op_div_i32, { "r", "r", "rJ" } }, |
1285 |
{ INDEX_op_divu_i32, { "r", "r", "rJ" } }, |
1286 |
{ INDEX_op_rem_i32, { "r", "r", "rJ" } }, |
1287 |
{ INDEX_op_remu_i32, { "r", "r", "rJ" } }, |
1288 |
{ INDEX_op_sub_i32, { "r", "r", "rJ" } }, |
1289 |
{ INDEX_op_and_i32, { "r", "r", "rJ" } }, |
1290 |
{ INDEX_op_or_i32, { "r", "r", "rJ" } }, |
1291 |
{ INDEX_op_xor_i32, { "r", "r", "rJ" } }, |
1292 |
|
1293 |
{ INDEX_op_shl_i32, { "r", "r", "rJ" } }, |
1294 |
{ INDEX_op_shr_i32, { "r", "r", "rJ" } }, |
1295 |
{ INDEX_op_sar_i32, { "r", "r", "rJ" } }, |
1296 |
|
1297 |
{ INDEX_op_brcond_i32, { "r", "rJ" } }, |
1298 |
#if TCG_TARGET_REG_BITS == 32 |
1299 |
{ INDEX_op_brcond2_i32, { "r", "r", "rJ", "rJ" } }, |
1300 |
{ INDEX_op_add2_i32, { "r", "r", "r", "r", "rJ", "rJ" } }, |
1301 |
{ INDEX_op_sub2_i32, { "r", "r", "r", "r", "rJ", "rJ" } }, |
1302 |
{ INDEX_op_mulu2_i32, { "r", "r", "r", "rJ" } }, |
1303 |
#endif
|
1304 |
|
1305 |
{ INDEX_op_qemu_ld8u, { "r", "L" } }, |
1306 |
{ INDEX_op_qemu_ld8s, { "r", "L" } }, |
1307 |
{ INDEX_op_qemu_ld16u, { "r", "L" } }, |
1308 |
{ INDEX_op_qemu_ld16s, { "r", "L" } }, |
1309 |
{ INDEX_op_qemu_ld32u, { "r", "L" } }, |
1310 |
{ INDEX_op_qemu_ld32s, { "r", "L" } }, |
1311 |
|
1312 |
{ INDEX_op_qemu_st8, { "L", "L" } }, |
1313 |
{ INDEX_op_qemu_st16, { "L", "L" } }, |
1314 |
{ INDEX_op_qemu_st32, { "L", "L" } }, |
1315 |
|
1316 |
#if TCG_TARGET_REG_BITS == 64 |
1317 |
{ INDEX_op_mov_i64, { "r", "r" } }, |
1318 |
{ INDEX_op_movi_i64, { "r" } },
|
1319 |
{ INDEX_op_ld8u_i64, { "r", "r" } }, |
1320 |
{ INDEX_op_ld8s_i64, { "r", "r" } }, |
1321 |
{ INDEX_op_ld16u_i64, { "r", "r" } }, |
1322 |
{ INDEX_op_ld16s_i64, { "r", "r" } }, |
1323 |
{ INDEX_op_ld32u_i64, { "r", "r" } }, |
1324 |
{ INDEX_op_ld32s_i64, { "r", "r" } }, |
1325 |
{ INDEX_op_ld_i64, { "r", "r" } }, |
1326 |
{ INDEX_op_st8_i64, { "r", "r" } }, |
1327 |
{ INDEX_op_st16_i64, { "r", "r" } }, |
1328 |
{ INDEX_op_st32_i64, { "r", "r" } }, |
1329 |
{ INDEX_op_st_i64, { "r", "r" } }, |
1330 |
{ INDEX_op_qemu_ld64, { "L", "L" } }, |
1331 |
{ INDEX_op_qemu_st64, { "L", "L" } }, |
1332 |
|
1333 |
{ INDEX_op_add_i64, { "r", "r", "rJ" } }, |
1334 |
{ INDEX_op_mul_i64, { "r", "r", "rJ" } }, |
1335 |
{ INDEX_op_div_i64, { "r", "r", "rJ" } }, |
1336 |
{ INDEX_op_divu_i64, { "r", "r", "rJ" } }, |
1337 |
{ INDEX_op_rem_i64, { "r", "r", "rJ" } }, |
1338 |
{ INDEX_op_remu_i64, { "r", "r", "rJ" } }, |
1339 |
{ INDEX_op_sub_i64, { "r", "r", "rJ" } }, |
1340 |
{ INDEX_op_and_i64, { "r", "r", "rJ" } }, |
1341 |
{ INDEX_op_or_i64, { "r", "r", "rJ" } }, |
1342 |
{ INDEX_op_xor_i64, { "r", "r", "rJ" } }, |
1343 |
|
1344 |
{ INDEX_op_shl_i64, { "r", "r", "rJ" } }, |
1345 |
{ INDEX_op_shr_i64, { "r", "r", "rJ" } }, |
1346 |
{ INDEX_op_sar_i64, { "r", "r", "rJ" } }, |
1347 |
|
1348 |
{ INDEX_op_brcond_i64, { "r", "rJ" } }, |
1349 |
#endif
|
1350 |
{ -1 },
|
1351 |
}; |
1352 |
|
1353 |
void tcg_target_init(TCGContext *s)
|
1354 |
{ |
1355 |
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff); |
1356 |
#if TCG_TARGET_REG_BITS == 64 |
1357 |
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff); |
1358 |
#endif
|
1359 |
tcg_regset_set32(tcg_target_call_clobber_regs, 0,
|
1360 |
(1 << TCG_REG_G1) |
|
1361 |
(1 << TCG_REG_G2) |
|
1362 |
(1 << TCG_REG_G3) |
|
1363 |
(1 << TCG_REG_G4) |
|
1364 |
(1 << TCG_REG_G5) |
|
1365 |
(1 << TCG_REG_G6) |
|
1366 |
(1 << TCG_REG_G7) |
|
1367 |
(1 << TCG_REG_O0) |
|
1368 |
(1 << TCG_REG_O1) |
|
1369 |
(1 << TCG_REG_O2) |
|
1370 |
(1 << TCG_REG_O3) |
|
1371 |
(1 << TCG_REG_O4) |
|
1372 |
(1 << TCG_REG_O5) |
|
1373 |
(1 << TCG_REG_O7));
|
1374 |
|
1375 |
tcg_regset_clear(s->reserved_regs); |
1376 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_G0); |
1377 |
#if TCG_TARGET_REG_BITS == 64 |
1378 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_I4); // for internal use
|
1379 |
#endif
|
1380 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_I5); // for internal use
|
1381 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_I6); |
1382 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_I7); |
1383 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_O6); |
1384 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_O7); |
1385 |
tcg_add_target_add_op_defs(sparc_op_defs); |
1386 |
} |