root / tcg / sparc / tcg-target.c @ 375816f8
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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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/* Define some temporary registers. T2 is used for constant generation. */
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#define TCG_REG_T1 TCG_REG_G1
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#define TCG_REG_T2 TCG_REG_O7
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|
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#ifdef CONFIG_USE_GUEST_BASE
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# define TCG_GUEST_BASE_REG TCG_REG_I5
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#else
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# define TCG_GUEST_BASE_REG TCG_REG_G0
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#endif
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|
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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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TCG_REG_I5, |
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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[] = { |
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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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}; |
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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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/* 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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|
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#define INSN_IMM11(x) ((1 << 13) | ((x) & 0x7ff)) |
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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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|
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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 MOVCC_ICC (1 << 18) |
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#define MOVCC_XCC (1 << 18 | 1 << 12) |
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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_ANDN (INSN_OP(2) | INSN_OP3(0x05)) |
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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_ORN (INSN_OP(2) | INSN_OP3(0x06)) |
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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(0x08)) |
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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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#define ARITH_MOVCC (INSN_OP(2) | INSN_OP3(0x2c)) |
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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)) |
292 |
#define STWA (INSN_OP(3) | INSN_OP3(0x14)) |
293 |
#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 |
297 |
#endif
|
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|
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#define LDUH_LE (LDUHA | INSN_ASI(ASI_PRIMARY_LITTLE))
|
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#define LDSH_LE (LDSHA | INSN_ASI(ASI_PRIMARY_LITTLE))
|
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#define LDUW_LE (LDUWA | INSN_ASI(ASI_PRIMARY_LITTLE))
|
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#define LDSW_LE (LDSWA | INSN_ASI(ASI_PRIMARY_LITTLE))
|
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#define LDX_LE (LDXA | INSN_ASI(ASI_PRIMARY_LITTLE))
|
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|
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#define STH_LE (STHA | INSN_ASI(ASI_PRIMARY_LITTLE))
|
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#define STW_LE (STWA | INSN_ASI(ASI_PRIMARY_LITTLE))
|
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#define STX_LE (STXA | INSN_ASI(ASI_PRIMARY_LITTLE))
|
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|
309 |
static inline void tcg_out_arith(TCGContext *s, int rd, int rs1, int rs2, |
310 |
int op)
|
311 |
{ |
312 |
tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) | |
313 |
INSN_RS2(rs2)); |
314 |
} |
315 |
|
316 |
static inline void tcg_out_arithi(TCGContext *s, int rd, int rs1, |
317 |
uint32_t offset, int op)
|
318 |
{ |
319 |
tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) | |
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INSN_IMM13(offset)); |
321 |
} |
322 |
|
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static void tcg_out_arithc(TCGContext *s, int rd, int rs1, |
324 |
int val2, int val2const, int op) |
325 |
{ |
326 |
tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) |
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| (val2const ? INSN_IMM13(val2) : INSN_RS2(val2))); |
328 |
} |
329 |
|
330 |
static inline void tcg_out_mov(TCGContext *s, TCGType type, |
331 |
TCGReg ret, TCGReg arg) |
332 |
{ |
333 |
tcg_out_arith(s, ret, arg, TCG_REG_G0, ARITH_OR); |
334 |
} |
335 |
|
336 |
static inline void tcg_out_sethi(TCGContext *s, int ret, uint32_t arg) |
337 |
{ |
338 |
tcg_out32(s, SETHI | INSN_RD(ret) | ((arg & 0xfffffc00) >> 10)); |
339 |
} |
340 |
|
341 |
static inline void tcg_out_movi_imm13(TCGContext *s, int ret, uint32_t arg) |
342 |
{ |
343 |
tcg_out_arithi(s, ret, TCG_REG_G0, arg, ARITH_OR); |
344 |
} |
345 |
|
346 |
static inline void tcg_out_movi_imm32(TCGContext *s, int ret, uint32_t arg) |
347 |
{ |
348 |
if (check_fit_tl(arg, 13)) |
349 |
tcg_out_movi_imm13(s, ret, arg); |
350 |
else {
|
351 |
tcg_out_sethi(s, ret, arg); |
352 |
if (arg & 0x3ff) |
353 |
tcg_out_arithi(s, ret, ret, arg & 0x3ff, ARITH_OR);
|
354 |
} |
355 |
} |
356 |
|
357 |
static inline void tcg_out_movi(TCGContext *s, TCGType type, |
358 |
TCGReg ret, tcg_target_long arg) |
359 |
{ |
360 |
/* All 32-bit constants, as well as 64-bit constants with
|
361 |
no high bits set go through movi_imm32. */
|
362 |
if (TCG_TARGET_REG_BITS == 32 |
363 |
|| type == TCG_TYPE_I32 |
364 |
|| (arg & ~(tcg_target_long)0xffffffff) == 0) { |
365 |
tcg_out_movi_imm32(s, ret, arg); |
366 |
} else if (check_fit_tl(arg, 13)) { |
367 |
/* A 13-bit constant sign-extended to 64-bits. */
|
368 |
tcg_out_movi_imm13(s, ret, arg); |
369 |
} else if (check_fit_tl(arg, 32)) { |
370 |
/* A 32-bit constant sign-extended to 64-bits. */
|
371 |
tcg_out_sethi(s, ret, ~arg); |
372 |
tcg_out_arithi(s, ret, ret, (arg & 0x3ff) | -0x400, ARITH_XOR); |
373 |
} else {
|
374 |
tcg_out_movi_imm32(s, ret, arg >> (TCG_TARGET_REG_BITS / 2));
|
375 |
tcg_out_arithi(s, ret, ret, 32, SHIFT_SLLX);
|
376 |
tcg_out_movi_imm32(s, TCG_REG_T2, arg); |
377 |
tcg_out_arith(s, ret, ret, TCG_REG_T2, ARITH_OR); |
378 |
} |
379 |
} |
380 |
|
381 |
static inline void tcg_out_ldst_rr(TCGContext *s, int data, int a1, |
382 |
int a2, int op) |
383 |
{ |
384 |
tcg_out32(s, op | INSN_RD(data) | INSN_RS1(a1) | INSN_RS2(a2)); |
385 |
} |
386 |
|
387 |
static inline void tcg_out_ldst(TCGContext *s, int ret, int addr, |
388 |
int offset, int op) |
389 |
{ |
390 |
if (check_fit_tl(offset, 13)) { |
391 |
tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(addr) | |
392 |
INSN_IMM13(offset)); |
393 |
} else {
|
394 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T1, offset); |
395 |
tcg_out_ldst_rr(s, ret, addr, TCG_REG_T1, op); |
396 |
} |
397 |
} |
398 |
|
399 |
static inline void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret, |
400 |
TCGReg arg1, tcg_target_long arg2) |
401 |
{ |
402 |
tcg_out_ldst(s, ret, arg1, arg2, (type == TCG_TYPE_I32 ? LDUW : LDX)); |
403 |
} |
404 |
|
405 |
static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg, |
406 |
TCGReg arg1, tcg_target_long arg2) |
407 |
{ |
408 |
tcg_out_ldst(s, arg, arg1, arg2, (type == TCG_TYPE_I32 ? STW : STX)); |
409 |
} |
410 |
|
411 |
static inline void tcg_out_ld_ptr(TCGContext *s, int ret, |
412 |
tcg_target_long arg) |
413 |
{ |
414 |
if (!check_fit_tl(arg, 10)) { |
415 |
tcg_out_movi(s, TCG_TYPE_PTR, ret, arg & ~0x3ff);
|
416 |
} |
417 |
tcg_out_ld(s, TCG_TYPE_PTR, ret, ret, arg & 0x3ff);
|
418 |
} |
419 |
|
420 |
static inline void tcg_out_sety(TCGContext *s, int rs) |
421 |
{ |
422 |
tcg_out32(s, WRY | INSN_RS1(TCG_REG_G0) | INSN_RS2(rs)); |
423 |
} |
424 |
|
425 |
static inline void tcg_out_rdy(TCGContext *s, int rd) |
426 |
{ |
427 |
tcg_out32(s, RDY | INSN_RD(rd)); |
428 |
} |
429 |
|
430 |
static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val) |
431 |
{ |
432 |
if (val != 0) { |
433 |
if (check_fit_tl(val, 13)) |
434 |
tcg_out_arithi(s, reg, reg, val, ARITH_ADD); |
435 |
else {
|
436 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T1, val); |
437 |
tcg_out_arith(s, reg, reg, TCG_REG_T1, ARITH_ADD); |
438 |
} |
439 |
} |
440 |
} |
441 |
|
442 |
static inline void tcg_out_andi(TCGContext *s, int rd, int rs, |
443 |
tcg_target_long val) |
444 |
{ |
445 |
if (val != 0) { |
446 |
if (check_fit_tl(val, 13)) |
447 |
tcg_out_arithi(s, rd, rs, val, ARITH_AND); |
448 |
else {
|
449 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_T1, val); |
450 |
tcg_out_arith(s, rd, rs, TCG_REG_T1, ARITH_AND); |
451 |
} |
452 |
} |
453 |
} |
454 |
|
455 |
static void tcg_out_div32(TCGContext *s, int rd, int rs1, |
456 |
int val2, int val2const, int uns) |
457 |
{ |
458 |
/* Load Y with the sign/zero extension of RS1 to 64-bits. */
|
459 |
if (uns) {
|
460 |
tcg_out_sety(s, TCG_REG_G0); |
461 |
} else {
|
462 |
tcg_out_arithi(s, TCG_REG_T1, rs1, 31, SHIFT_SRA);
|
463 |
tcg_out_sety(s, TCG_REG_T1); |
464 |
} |
465 |
|
466 |
tcg_out_arithc(s, rd, rs1, val2, val2const, |
467 |
uns ? ARITH_UDIV : ARITH_SDIV); |
468 |
} |
469 |
|
470 |
static inline void tcg_out_nop(TCGContext *s) |
471 |
{ |
472 |
tcg_out_sethi(s, TCG_REG_G0, 0);
|
473 |
} |
474 |
|
475 |
static void tcg_out_branch_i32(TCGContext *s, int opc, int label_index) |
476 |
{ |
477 |
TCGLabel *l = &s->labels[label_index]; |
478 |
|
479 |
if (l->has_value) {
|
480 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x2) |
481 |
| INSN_OFF22(l->u.value - (unsigned long)s->code_ptr))); |
482 |
} else {
|
483 |
tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP22, label_index, 0);
|
484 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x2) | 0)); |
485 |
} |
486 |
} |
487 |
|
488 |
#if TCG_TARGET_REG_BITS == 64 |
489 |
static void tcg_out_branch_i64(TCGContext *s, int opc, int label_index) |
490 |
{ |
491 |
TCGLabel *l = &s->labels[label_index]; |
492 |
|
493 |
if (l->has_value) {
|
494 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x1) | |
495 |
(0x5 << 19) | |
496 |
INSN_OFF19(l->u.value - (unsigned long)s->code_ptr))); |
497 |
} else {
|
498 |
tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP19, label_index, 0);
|
499 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x1) | |
500 |
(0x5 << 19) | 0)); |
501 |
} |
502 |
} |
503 |
#endif
|
504 |
|
505 |
static const uint8_t tcg_cond_to_bcond[10] = { |
506 |
[TCG_COND_EQ] = COND_E, |
507 |
[TCG_COND_NE] = COND_NE, |
508 |
[TCG_COND_LT] = COND_L, |
509 |
[TCG_COND_GE] = COND_GE, |
510 |
[TCG_COND_LE] = COND_LE, |
511 |
[TCG_COND_GT] = COND_G, |
512 |
[TCG_COND_LTU] = COND_CS, |
513 |
[TCG_COND_GEU] = COND_CC, |
514 |
[TCG_COND_LEU] = COND_LEU, |
515 |
[TCG_COND_GTU] = COND_GU, |
516 |
}; |
517 |
|
518 |
static void tcg_out_cmp(TCGContext *s, TCGArg c1, TCGArg c2, int c2const) |
519 |
{ |
520 |
tcg_out_arithc(s, TCG_REG_G0, c1, c2, c2const, ARITH_SUBCC); |
521 |
} |
522 |
|
523 |
static void tcg_out_brcond_i32(TCGContext *s, TCGCond cond, |
524 |
TCGArg arg1, TCGArg arg2, int const_arg2,
|
525 |
int label_index)
|
526 |
{ |
527 |
tcg_out_cmp(s, arg1, arg2, const_arg2); |
528 |
tcg_out_branch_i32(s, tcg_cond_to_bcond[cond], label_index); |
529 |
tcg_out_nop(s); |
530 |
} |
531 |
|
532 |
#if TCG_TARGET_REG_BITS == 64 |
533 |
static void tcg_out_brcond_i64(TCGContext *s, TCGCond cond, |
534 |
TCGArg arg1, TCGArg arg2, int const_arg2,
|
535 |
int label_index)
|
536 |
{ |
537 |
tcg_out_cmp(s, arg1, arg2, const_arg2); |
538 |
tcg_out_branch_i64(s, tcg_cond_to_bcond[cond], label_index); |
539 |
tcg_out_nop(s); |
540 |
} |
541 |
#else
|
542 |
static void tcg_out_brcond2_i32(TCGContext *s, TCGCond cond, |
543 |
TCGArg al, TCGArg ah, |
544 |
TCGArg bl, int blconst,
|
545 |
TCGArg bh, int bhconst, int label_dest) |
546 |
{ |
547 |
int cc, label_next = gen_new_label();
|
548 |
|
549 |
tcg_out_cmp(s, ah, bh, bhconst); |
550 |
|
551 |
/* Note that we fill one of the delay slots with the second compare. */
|
552 |
switch (cond) {
|
553 |
case TCG_COND_EQ:
|
554 |
cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_NE], 0);
|
555 |
tcg_out_branch_i32(s, cc, label_next); |
556 |
tcg_out_cmp(s, al, bl, blconst); |
557 |
cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_EQ], 0);
|
558 |
tcg_out_branch_i32(s, cc, label_dest); |
559 |
break;
|
560 |
|
561 |
case TCG_COND_NE:
|
562 |
cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_NE], 0);
|
563 |
tcg_out_branch_i32(s, cc, label_dest); |
564 |
tcg_out_cmp(s, al, bl, blconst); |
565 |
tcg_out_branch_i32(s, cc, label_dest); |
566 |
break;
|
567 |
|
568 |
default:
|
569 |
/* ??? One could fairly easily special-case 64-bit unsigned
|
570 |
compares against 32-bit zero-extended constants. For instance,
|
571 |
we know that (unsigned)AH < 0 is false and need not emit it.
|
572 |
Similarly, (unsigned)AH > 0 being true implies AH != 0, so the
|
573 |
second branch will never be taken. */
|
574 |
cc = INSN_COND(tcg_cond_to_bcond[cond], 0);
|
575 |
tcg_out_branch_i32(s, cc, label_dest); |
576 |
tcg_out_nop(s); |
577 |
cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_NE], 0);
|
578 |
tcg_out_branch_i32(s, cc, label_next); |
579 |
tcg_out_cmp(s, al, bl, blconst); |
580 |
cc = INSN_COND(tcg_cond_to_bcond[tcg_unsigned_cond(cond)], 0);
|
581 |
tcg_out_branch_i32(s, cc, label_dest); |
582 |
break;
|
583 |
} |
584 |
tcg_out_nop(s); |
585 |
|
586 |
tcg_out_label(s, label_next, s->code_ptr); |
587 |
} |
588 |
#endif
|
589 |
|
590 |
static void tcg_out_setcond_i32(TCGContext *s, TCGCond cond, TCGArg ret, |
591 |
TCGArg c1, TCGArg c2, int c2const)
|
592 |
{ |
593 |
TCGArg t; |
594 |
|
595 |
/* For 32-bit comparisons, we can play games with ADDX/SUBX. */
|
596 |
switch (cond) {
|
597 |
case TCG_COND_EQ:
|
598 |
case TCG_COND_NE:
|
599 |
if (c2 != 0) { |
600 |
tcg_out_arithc(s, ret, c1, c2, c2const, ARITH_XOR); |
601 |
} |
602 |
c1 = TCG_REG_G0, c2 = ret, c2const = 0;
|
603 |
cond = (cond == TCG_COND_EQ ? TCG_COND_LEU : TCG_COND_LTU); |
604 |
break;
|
605 |
|
606 |
case TCG_COND_GTU:
|
607 |
case TCG_COND_GEU:
|
608 |
if (c2const && c2 != 0) { |
609 |
tcg_out_movi_imm13(s, TCG_REG_T1, c2); |
610 |
c2 = TCG_REG_T1; |
611 |
} |
612 |
t = c1, c1 = c2, c2 = t, c2const = 0;
|
613 |
cond = tcg_swap_cond(cond); |
614 |
break;
|
615 |
|
616 |
case TCG_COND_LTU:
|
617 |
case TCG_COND_LEU:
|
618 |
break;
|
619 |
|
620 |
default:
|
621 |
tcg_out_cmp(s, c1, c2, c2const); |
622 |
tcg_out_movi_imm13(s, ret, 0);
|
623 |
tcg_out32(s, ARITH_MOVCC | INSN_RD(ret) |
624 |
| INSN_RS1(tcg_cond_to_bcond[cond]) |
625 |
| MOVCC_ICC | INSN_IMM11(1));
|
626 |
return;
|
627 |
} |
628 |
|
629 |
tcg_out_cmp(s, c1, c2, c2const); |
630 |
if (cond == TCG_COND_LTU) {
|
631 |
tcg_out_arithi(s, ret, TCG_REG_G0, 0, ARITH_ADDX);
|
632 |
} else {
|
633 |
tcg_out_arithi(s, ret, TCG_REG_G0, -1, ARITH_SUBX);
|
634 |
} |
635 |
} |
636 |
|
637 |
#if TCG_TARGET_REG_BITS == 64 |
638 |
static void tcg_out_setcond_i64(TCGContext *s, TCGCond cond, TCGArg ret, |
639 |
TCGArg c1, TCGArg c2, int c2const)
|
640 |
{ |
641 |
tcg_out_cmp(s, c1, c2, c2const); |
642 |
tcg_out_movi_imm13(s, ret, 0);
|
643 |
tcg_out32 (s, ARITH_MOVCC | INSN_RD(ret) |
644 |
| INSN_RS1(tcg_cond_to_bcond[cond]) |
645 |
| MOVCC_XCC | INSN_IMM11(1));
|
646 |
} |
647 |
#else
|
648 |
static void tcg_out_setcond2_i32(TCGContext *s, TCGCond cond, TCGArg ret, |
649 |
TCGArg al, TCGArg ah, |
650 |
TCGArg bl, int blconst,
|
651 |
TCGArg bh, int bhconst)
|
652 |
{ |
653 |
int lab;
|
654 |
|
655 |
switch (cond) {
|
656 |
case TCG_COND_EQ:
|
657 |
tcg_out_setcond_i32(s, TCG_COND_EQ, TCG_REG_T1, al, bl, blconst); |
658 |
tcg_out_setcond_i32(s, TCG_COND_EQ, ret, ah, bh, bhconst); |
659 |
tcg_out_arith(s, ret, ret, TCG_REG_T1, ARITH_AND); |
660 |
break;
|
661 |
|
662 |
case TCG_COND_NE:
|
663 |
tcg_out_setcond_i32(s, TCG_COND_NE, TCG_REG_T1, al, al, blconst); |
664 |
tcg_out_setcond_i32(s, TCG_COND_NE, ret, ah, bh, bhconst); |
665 |
tcg_out_arith(s, ret, ret, TCG_REG_T1, ARITH_OR); |
666 |
break;
|
667 |
|
668 |
default:
|
669 |
lab = gen_new_label(); |
670 |
|
671 |
tcg_out_cmp(s, ah, bh, bhconst); |
672 |
tcg_out_branch_i32(s, INSN_COND(tcg_cond_to_bcond[cond], 1), lab);
|
673 |
tcg_out_movi_imm13(s, ret, 1);
|
674 |
tcg_out_branch_i32(s, INSN_COND(COND_NE, 1), lab);
|
675 |
tcg_out_movi_imm13(s, ret, 0);
|
676 |
|
677 |
tcg_out_setcond_i32(s, tcg_unsigned_cond(cond), ret, al, bl, blconst); |
678 |
|
679 |
tcg_out_label(s, lab, s->code_ptr); |
680 |
break;
|
681 |
} |
682 |
} |
683 |
#endif
|
684 |
|
685 |
/* Generate global QEMU prologue and epilogue code */
|
686 |
static void tcg_target_qemu_prologue(TCGContext *s) |
687 |
{ |
688 |
int tmp_buf_size, frame_size;
|
689 |
|
690 |
/* The TCG temp buffer is at the top of the frame, immediately
|
691 |
below the frame pointer. */
|
692 |
tmp_buf_size = CPU_TEMP_BUF_NLONGS * (int)sizeof(long); |
693 |
tcg_set_frame(s, TCG_REG_I6, TCG_TARGET_STACK_BIAS - tmp_buf_size, |
694 |
tmp_buf_size); |
695 |
|
696 |
/* TCG_TARGET_CALL_STACK_OFFSET includes the stack bias, but is
|
697 |
otherwise the minimal frame usable by callees. */
|
698 |
frame_size = TCG_TARGET_CALL_STACK_OFFSET - TCG_TARGET_STACK_BIAS; |
699 |
frame_size += TCG_STATIC_CALL_ARGS_SIZE + tmp_buf_size; |
700 |
frame_size += TCG_TARGET_STACK_ALIGN - 1;
|
701 |
frame_size &= -TCG_TARGET_STACK_ALIGN; |
702 |
tcg_out32(s, SAVE | INSN_RD(TCG_REG_O6) | INSN_RS1(TCG_REG_O6) | |
703 |
INSN_IMM13(-frame_size)); |
704 |
|
705 |
#ifdef CONFIG_USE_GUEST_BASE
|
706 |
if (GUEST_BASE != 0) { |
707 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE); |
708 |
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); |
709 |
} |
710 |
#endif
|
711 |
|
712 |
tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I1) | |
713 |
INSN_RS2(TCG_REG_G0)); |
714 |
/* delay slot */
|
715 |
tcg_out_nop(s); |
716 |
|
717 |
/* No epilogue required. We issue ret + restore directly in the TB. */
|
718 |
} |
719 |
|
720 |
#if defined(CONFIG_SOFTMMU)
|
721 |
|
722 |
#include "../../softmmu_defs.h" |
723 |
|
724 |
/* helper signature: helper_ld_mmu(CPUState *env, target_ulong addr,
|
725 |
int mmu_idx) */
|
726 |
static const void * const qemu_ld_helpers[4] = { |
727 |
helper_ldb_mmu, |
728 |
helper_ldw_mmu, |
729 |
helper_ldl_mmu, |
730 |
helper_ldq_mmu, |
731 |
}; |
732 |
|
733 |
/* helper signature: helper_st_mmu(CPUState *env, target_ulong addr,
|
734 |
uintxx_t val, int mmu_idx) */
|
735 |
static const void * const qemu_st_helpers[4] = { |
736 |
helper_stb_mmu, |
737 |
helper_stw_mmu, |
738 |
helper_stl_mmu, |
739 |
helper_stq_mmu, |
740 |
}; |
741 |
|
742 |
/* Perform the TLB load and compare.
|
743 |
|
744 |
Inputs:
|
745 |
ADDRLO_IDX contains the index into ARGS of the low part of the
|
746 |
address; the high part of the address is at ADDR_LOW_IDX+1.
|
747 |
|
748 |
MEM_INDEX and S_BITS are the memory context and log2 size of the load.
|
749 |
|
750 |
WHICH is the offset into the CPUTLBEntry structure of the slot to read.
|
751 |
This should be offsetof addr_read or addr_write.
|
752 |
|
753 |
The result of the TLB comparison is in %[ix]cc. The sanitized address
|
754 |
is in the returned register, maybe %o0. The TLB addend is in %o1. */
|
755 |
|
756 |
static int tcg_out_tlb_load(TCGContext *s, int addrlo_idx, int mem_index, |
757 |
int s_bits, const TCGArg *args, int which) |
758 |
{ |
759 |
const int addrlo = args[addrlo_idx]; |
760 |
const int r0 = TCG_REG_O0; |
761 |
const int r1 = TCG_REG_O1; |
762 |
const int r2 = TCG_REG_O2; |
763 |
int addr = addrlo;
|
764 |
int tlb_ofs;
|
765 |
|
766 |
if (TCG_TARGET_REG_BITS == 32 && TARGET_LONG_BITS == 64) { |
767 |
/* Assemble the 64-bit address in R0. */
|
768 |
tcg_out_arithi(s, r0, addrlo, 0, SHIFT_SRL);
|
769 |
tcg_out_arithi(s, r1, args[addrlo_idx + 1], 32, SHIFT_SLLX); |
770 |
tcg_out_arith(s, r0, r0, r1, ARITH_OR); |
771 |
} |
772 |
|
773 |
/* Shift the page number down to tlb-entry. */
|
774 |
tcg_out_arithi(s, r1, addrlo, |
775 |
TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS, SHIFT_SRL); |
776 |
|
777 |
/* Mask out the page offset, except for the required alignment. */
|
778 |
tcg_out_andi(s, r0, addr, TARGET_PAGE_MASK | ((1 << s_bits) - 1)); |
779 |
|
780 |
/* Compute tlb index, modulo tlb size. */
|
781 |
tcg_out_andi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
|
782 |
|
783 |
/* Relative to the current ENV. */
|
784 |
tcg_out_arith(s, r1, TCG_AREG0, r1, ARITH_ADD); |
785 |
|
786 |
/* Find a base address that can load both tlb comparator and addend. */
|
787 |
tlb_ofs = offsetof(CPUArchState, tlb_table[mem_index][0]);
|
788 |
if (!check_fit_tl(tlb_ofs + sizeof(CPUTLBEntry), 13)) { |
789 |
tcg_out_addi(s, r1, tlb_ofs); |
790 |
tlb_ofs = 0;
|
791 |
} |
792 |
|
793 |
/* Load the tlb comparator and the addend. */
|
794 |
tcg_out_ld(s, TCG_TYPE_TL, r2, r1, tlb_ofs + which); |
795 |
tcg_out_ld(s, TCG_TYPE_PTR, r1, r1, tlb_ofs+offsetof(CPUTLBEntry, addend)); |
796 |
|
797 |
/* subcc arg0, arg2, %g0 */
|
798 |
tcg_out_cmp(s, r0, r2, 0);
|
799 |
|
800 |
/* If the guest address must be zero-extended, do so now. */
|
801 |
if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) { |
802 |
tcg_out_arithi(s, r0, addrlo, 0, SHIFT_SRL);
|
803 |
return r0;
|
804 |
} |
805 |
return addrlo;
|
806 |
} |
807 |
#endif /* CONFIG_SOFTMMU */ |
808 |
|
809 |
static const int qemu_ld_opc[8] = { |
810 |
#ifdef TARGET_WORDS_BIGENDIAN
|
811 |
LDUB, LDUH, LDUW, LDX, LDSB, LDSH, LDSW, LDX |
812 |
#else
|
813 |
LDUB, LDUH_LE, LDUW_LE, LDX_LE, LDSB, LDSH_LE, LDSW_LE, LDX_LE |
814 |
#endif
|
815 |
}; |
816 |
|
817 |
static const int qemu_st_opc[4] = { |
818 |
#ifdef TARGET_WORDS_BIGENDIAN
|
819 |
STB, STH, STW, STX |
820 |
#else
|
821 |
STB, STH_LE, STW_LE, STX_LE |
822 |
#endif
|
823 |
}; |
824 |
|
825 |
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int sizeop) |
826 |
{ |
827 |
int addrlo_idx = 1, datalo, datahi, addr_reg; |
828 |
#if defined(CONFIG_SOFTMMU)
|
829 |
int memi_idx, memi, s_bits, n;
|
830 |
uint32_t *label_ptr[2];
|
831 |
#endif
|
832 |
|
833 |
datahi = datalo = args[0];
|
834 |
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) { |
835 |
datahi = args[1];
|
836 |
addrlo_idx = 2;
|
837 |
} |
838 |
|
839 |
#if defined(CONFIG_SOFTMMU)
|
840 |
memi_idx = addrlo_idx + 1 + (TARGET_LONG_BITS > TCG_TARGET_REG_BITS);
|
841 |
memi = args[memi_idx]; |
842 |
s_bits = sizeop & 3;
|
843 |
|
844 |
addr_reg = tcg_out_tlb_load(s, addrlo_idx, memi, s_bits, args, |
845 |
offsetof(CPUTLBEntry, addr_read)); |
846 |
|
847 |
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) { |
848 |
int reg64;
|
849 |
|
850 |
/* bne,pn %[xi]cc, label0 */
|
851 |
label_ptr[0] = (uint32_t *)s->code_ptr;
|
852 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(COND_NE, 0) | INSN_OP2(0x1) |
853 |
| ((TARGET_LONG_BITS == 64) << 21))); |
854 |
|
855 |
/* TLB Hit. */
|
856 |
/* Load all 64-bits into an O/G register. */
|
857 |
reg64 = (datalo < 16 ? datalo : TCG_REG_O0);
|
858 |
tcg_out_ldst_rr(s, reg64, addr_reg, TCG_REG_O1, qemu_ld_opc[sizeop]); |
859 |
|
860 |
/* Move the two 32-bit pieces into the destination registers. */
|
861 |
tcg_out_arithi(s, datahi, reg64, 32, SHIFT_SRLX);
|
862 |
if (reg64 != datalo) {
|
863 |
tcg_out_mov(s, TCG_TYPE_I32, datalo, reg64); |
864 |
} |
865 |
|
866 |
/* b,a,pt label1 */
|
867 |
label_ptr[1] = (uint32_t *)s->code_ptr;
|
868 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x1) |
869 |
| (1 << 29) | (1 << 19))); |
870 |
} else {
|
871 |
/* The fast path is exactly one insn. Thus we can perform the
|
872 |
entire TLB Hit in the (annulled) delay slot of the branch
|
873 |
over the TLB Miss case. */
|
874 |
|
875 |
/* beq,a,pt %[xi]cc, label0 */
|
876 |
label_ptr[0] = NULL; |
877 |
label_ptr[1] = (uint32_t *)s->code_ptr;
|
878 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x1) |
879 |
| ((TARGET_LONG_BITS == 64) << 21) |
880 |
| (1 << 29) | (1 << 19))); |
881 |
/* delay slot */
|
882 |
tcg_out_ldst_rr(s, datalo, addr_reg, TCG_REG_O1, qemu_ld_opc[sizeop]); |
883 |
} |
884 |
|
885 |
/* TLB Miss. */
|
886 |
|
887 |
if (label_ptr[0]) { |
888 |
*label_ptr[0] |= INSN_OFF19((unsigned long)s->code_ptr - |
889 |
(unsigned long)label_ptr[0]); |
890 |
} |
891 |
n = 0;
|
892 |
tcg_out_mov(s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[n++], TCG_AREG0); |
893 |
if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) {
|
894 |
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++], |
895 |
args[addrlo_idx + 1]);
|
896 |
} |
897 |
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++], |
898 |
args[addrlo_idx]); |
899 |
|
900 |
/* qemu_ld_helper[s_bits](arg0, arg1) */
|
901 |
tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_ld_helpers[s_bits] |
902 |
- (tcg_target_ulong)s->code_ptr) >> 2)
|
903 |
& 0x3fffffff));
|
904 |
/* delay slot */
|
905 |
tcg_out_movi(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[n], memi); |
906 |
|
907 |
n = tcg_target_call_oarg_regs[0];
|
908 |
/* datalo = sign_extend(arg0) */
|
909 |
switch (sizeop) {
|
910 |
case 0 | 4: |
911 |
/* Recall that SRA sign extends from bit 31 through bit 63. */
|
912 |
tcg_out_arithi(s, datalo, n, 24, SHIFT_SLL);
|
913 |
tcg_out_arithi(s, datalo, datalo, 24, SHIFT_SRA);
|
914 |
break;
|
915 |
case 1 | 4: |
916 |
tcg_out_arithi(s, datalo, n, 16, SHIFT_SLL);
|
917 |
tcg_out_arithi(s, datalo, datalo, 16, SHIFT_SRA);
|
918 |
break;
|
919 |
case 2 | 4: |
920 |
tcg_out_arithi(s, datalo, n, 0, SHIFT_SRA);
|
921 |
break;
|
922 |
case 3: |
923 |
if (TCG_TARGET_REG_BITS == 32) { |
924 |
tcg_out_mov(s, TCG_TYPE_REG, datahi, n); |
925 |
tcg_out_mov(s, TCG_TYPE_REG, datalo, n + 1);
|
926 |
break;
|
927 |
} |
928 |
/* FALLTHRU */
|
929 |
case 0: |
930 |
case 1: |
931 |
case 2: |
932 |
default:
|
933 |
/* mov */
|
934 |
tcg_out_mov(s, TCG_TYPE_REG, datalo, n); |
935 |
break;
|
936 |
} |
937 |
|
938 |
*label_ptr[1] |= INSN_OFF19((unsigned long)s->code_ptr - |
939 |
(unsigned long)label_ptr[1]); |
940 |
#else
|
941 |
addr_reg = args[addrlo_idx]; |
942 |
if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) { |
943 |
tcg_out_arithi(s, TCG_REG_T1, addr_reg, 0, SHIFT_SRL);
|
944 |
addr_reg = TCG_REG_T1; |
945 |
} |
946 |
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) { |
947 |
int reg64 = (datalo < 16 ? datalo : TCG_REG_O0); |
948 |
|
949 |
tcg_out_ldst_rr(s, reg64, addr_reg, |
950 |
(GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0), |
951 |
qemu_ld_opc[sizeop]); |
952 |
|
953 |
tcg_out_arithi(s, datahi, reg64, 32, SHIFT_SRLX);
|
954 |
if (reg64 != datalo) {
|
955 |
tcg_out_mov(s, TCG_TYPE_I32, datalo, reg64); |
956 |
} |
957 |
} else {
|
958 |
tcg_out_ldst_rr(s, datalo, addr_reg, |
959 |
(GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0), |
960 |
qemu_ld_opc[sizeop]); |
961 |
} |
962 |
#endif /* CONFIG_SOFTMMU */ |
963 |
} |
964 |
|
965 |
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int sizeop) |
966 |
{ |
967 |
int addrlo_idx = 1, datalo, datahi, addr_reg; |
968 |
#if defined(CONFIG_SOFTMMU)
|
969 |
int memi_idx, memi, n;
|
970 |
uint32_t *label_ptr; |
971 |
#endif
|
972 |
|
973 |
datahi = datalo = args[0];
|
974 |
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) { |
975 |
datahi = args[1];
|
976 |
addrlo_idx = 2;
|
977 |
} |
978 |
|
979 |
#if defined(CONFIG_SOFTMMU)
|
980 |
memi_idx = addrlo_idx + 1 + (TARGET_LONG_BITS > TCG_TARGET_REG_BITS);
|
981 |
memi = args[memi_idx]; |
982 |
|
983 |
addr_reg = tcg_out_tlb_load(s, addrlo_idx, memi, sizeop, args, |
984 |
offsetof(CPUTLBEntry, addr_write)); |
985 |
|
986 |
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) { |
987 |
/* Reconstruct the full 64-bit value. */
|
988 |
tcg_out_arithi(s, TCG_REG_T1, datalo, 0, SHIFT_SRL);
|
989 |
tcg_out_arithi(s, TCG_REG_O2, datahi, 32, SHIFT_SLLX);
|
990 |
tcg_out_arith(s, TCG_REG_O2, TCG_REG_T1, TCG_REG_O2, ARITH_OR); |
991 |
datalo = TCG_REG_O2; |
992 |
} |
993 |
|
994 |
/* The fast path is exactly one insn. Thus we can perform the entire
|
995 |
TLB Hit in the (annulled) delay slot of the branch over TLB Miss. */
|
996 |
/* beq,a,pt %[xi]cc, label0 */
|
997 |
label_ptr = (uint32_t *)s->code_ptr; |
998 |
tcg_out32(s, (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x1) |
999 |
| ((TARGET_LONG_BITS == 64) << 21) |
1000 |
| (1 << 29) | (1 << 19))); |
1001 |
/* delay slot */
|
1002 |
tcg_out_ldst_rr(s, datalo, addr_reg, TCG_REG_O1, qemu_st_opc[sizeop]); |
1003 |
|
1004 |
/* TLB Miss. */
|
1005 |
|
1006 |
n = 0;
|
1007 |
tcg_out_mov(s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[n++], TCG_AREG0); |
1008 |
if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) {
|
1009 |
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++], |
1010 |
args[addrlo_idx + 1]);
|
1011 |
} |
1012 |
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++], |
1013 |
args[addrlo_idx]); |
1014 |
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) { |
1015 |
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++], datahi); |
1016 |
} |
1017 |
tcg_out_mov(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n++], datalo); |
1018 |
|
1019 |
/* qemu_st_helper[s_bits](arg0, arg1, arg2) */
|
1020 |
tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_st_helpers[sizeop] |
1021 |
- (tcg_target_ulong)s->code_ptr) >> 2)
|
1022 |
& 0x3fffffff));
|
1023 |
/* delay slot */
|
1024 |
tcg_out_movi(s, TCG_TYPE_REG, tcg_target_call_iarg_regs[n], memi); |
1025 |
|
1026 |
*label_ptr |= INSN_OFF19((unsigned long)s->code_ptr - |
1027 |
(unsigned long)label_ptr); |
1028 |
#else
|
1029 |
addr_reg = args[addrlo_idx]; |
1030 |
if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) { |
1031 |
tcg_out_arithi(s, TCG_REG_T1, addr_reg, 0, SHIFT_SRL);
|
1032 |
addr_reg = TCG_REG_T1; |
1033 |
} |
1034 |
if (TCG_TARGET_REG_BITS == 32 && sizeop == 3) { |
1035 |
tcg_out_arithi(s, TCG_REG_T1, datalo, 0, SHIFT_SRL);
|
1036 |
tcg_out_arithi(s, TCG_REG_O2, datahi, 32, SHIFT_SLLX);
|
1037 |
tcg_out_arith(s, TCG_REG_O2, TCG_REG_T1, TCG_REG_O2, ARITH_OR); |
1038 |
datalo = TCG_REG_O2; |
1039 |
} |
1040 |
tcg_out_ldst_rr(s, datalo, addr_reg, |
1041 |
(GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0), |
1042 |
qemu_st_opc[sizeop]); |
1043 |
#endif /* CONFIG_SOFTMMU */ |
1044 |
} |
1045 |
|
1046 |
static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args, |
1047 |
const int *const_args) |
1048 |
{ |
1049 |
int c;
|
1050 |
|
1051 |
switch (opc) {
|
1052 |
case INDEX_op_exit_tb:
|
1053 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I0, args[0]);
|
1054 |
tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I7) | |
1055 |
INSN_IMM13(8));
|
1056 |
tcg_out32(s, RESTORE | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_G0) | |
1057 |
INSN_RS2(TCG_REG_G0)); |
1058 |
break;
|
1059 |
case INDEX_op_goto_tb:
|
1060 |
if (s->tb_jmp_offset) {
|
1061 |
/* direct jump method */
|
1062 |
tcg_out_sethi(s, TCG_REG_T1, args[0] & 0xffffe000); |
1063 |
tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_T1) | |
1064 |
INSN_IMM13((args[0] & 0x1fff))); |
1065 |
s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
|
1066 |
} else {
|
1067 |
/* indirect jump method */
|
1068 |
tcg_out_ld_ptr(s, TCG_REG_T1, |
1069 |
(tcg_target_long)(s->tb_next + args[0]));
|
1070 |
tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_T1) | |
1071 |
INSN_RS2(TCG_REG_G0)); |
1072 |
} |
1073 |
tcg_out_nop(s); |
1074 |
s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
|
1075 |
break;
|
1076 |
case INDEX_op_call:
|
1077 |
if (const_args[0]) { |
1078 |
tcg_out32(s, CALL | ((((tcg_target_ulong)args[0]
|
1079 |
- (tcg_target_ulong)s->code_ptr) >> 2)
|
1080 |
& 0x3fffffff));
|
1081 |
} else {
|
1082 |
tcg_out_ld_ptr(s, TCG_REG_T1, |
1083 |
(tcg_target_long)(s->tb_next + args[0]));
|
1084 |
tcg_out32(s, JMPL | INSN_RD(TCG_REG_O7) | INSN_RS1(TCG_REG_T1) | |
1085 |
INSN_RS2(TCG_REG_G0)); |
1086 |
} |
1087 |
/* delay slot */
|
1088 |
tcg_out_nop(s); |
1089 |
break;
|
1090 |
case INDEX_op_jmp:
|
1091 |
case INDEX_op_br:
|
1092 |
tcg_out_branch_i32(s, COND_A, args[0]);
|
1093 |
tcg_out_nop(s); |
1094 |
break;
|
1095 |
case INDEX_op_movi_i32:
|
1096 |
tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]); |
1097 |
break;
|
1098 |
|
1099 |
#if TCG_TARGET_REG_BITS == 64 |
1100 |
#define OP_32_64(x) \
|
1101 |
glue(glue(case INDEX_op_, x), _i32): \
|
1102 |
glue(glue(case INDEX_op_, x), _i64)
|
1103 |
#else
|
1104 |
#define OP_32_64(x) \
|
1105 |
glue(glue(case INDEX_op_, x), _i32)
|
1106 |
#endif
|
1107 |
OP_32_64(ld8u): |
1108 |
tcg_out_ldst(s, args[0], args[1], args[2], LDUB); |
1109 |
break;
|
1110 |
OP_32_64(ld8s): |
1111 |
tcg_out_ldst(s, args[0], args[1], args[2], LDSB); |
1112 |
break;
|
1113 |
OP_32_64(ld16u): |
1114 |
tcg_out_ldst(s, args[0], args[1], args[2], LDUH); |
1115 |
break;
|
1116 |
OP_32_64(ld16s): |
1117 |
tcg_out_ldst(s, args[0], args[1], args[2], LDSH); |
1118 |
break;
|
1119 |
case INDEX_op_ld_i32:
|
1120 |
#if TCG_TARGET_REG_BITS == 64 |
1121 |
case INDEX_op_ld32u_i64:
|
1122 |
#endif
|
1123 |
tcg_out_ldst(s, args[0], args[1], args[2], LDUW); |
1124 |
break;
|
1125 |
OP_32_64(st8): |
1126 |
tcg_out_ldst(s, args[0], args[1], args[2], STB); |
1127 |
break;
|
1128 |
OP_32_64(st16): |
1129 |
tcg_out_ldst(s, args[0], args[1], args[2], STH); |
1130 |
break;
|
1131 |
case INDEX_op_st_i32:
|
1132 |
#if TCG_TARGET_REG_BITS == 64 |
1133 |
case INDEX_op_st32_i64:
|
1134 |
#endif
|
1135 |
tcg_out_ldst(s, args[0], args[1], args[2], STW); |
1136 |
break;
|
1137 |
OP_32_64(add): |
1138 |
c = ARITH_ADD; |
1139 |
goto gen_arith;
|
1140 |
OP_32_64(sub): |
1141 |
c = ARITH_SUB; |
1142 |
goto gen_arith;
|
1143 |
OP_32_64(and): |
1144 |
c = ARITH_AND; |
1145 |
goto gen_arith;
|
1146 |
OP_32_64(andc): |
1147 |
c = ARITH_ANDN; |
1148 |
goto gen_arith;
|
1149 |
OP_32_64(or): |
1150 |
c = ARITH_OR; |
1151 |
goto gen_arith;
|
1152 |
OP_32_64(orc): |
1153 |
c = ARITH_ORN; |
1154 |
goto gen_arith;
|
1155 |
OP_32_64(xor): |
1156 |
c = ARITH_XOR; |
1157 |
goto gen_arith;
|
1158 |
case INDEX_op_shl_i32:
|
1159 |
c = SHIFT_SLL; |
1160 |
do_shift32:
|
1161 |
/* Limit immediate shift count lest we create an illegal insn. */
|
1162 |
tcg_out_arithc(s, args[0], args[1], args[2] & 31, const_args[2], c); |
1163 |
break;
|
1164 |
case INDEX_op_shr_i32:
|
1165 |
c = SHIFT_SRL; |
1166 |
goto do_shift32;
|
1167 |
case INDEX_op_sar_i32:
|
1168 |
c = SHIFT_SRA; |
1169 |
goto do_shift32;
|
1170 |
case INDEX_op_mul_i32:
|
1171 |
c = ARITH_UMUL; |
1172 |
goto gen_arith;
|
1173 |
|
1174 |
OP_32_64(neg): |
1175 |
c = ARITH_SUB; |
1176 |
goto gen_arith1;
|
1177 |
OP_32_64(not): |
1178 |
c = ARITH_ORN; |
1179 |
goto gen_arith1;
|
1180 |
|
1181 |
case INDEX_op_div_i32:
|
1182 |
tcg_out_div32(s, args[0], args[1], args[2], const_args[2], 0); |
1183 |
break;
|
1184 |
case INDEX_op_divu_i32:
|
1185 |
tcg_out_div32(s, args[0], args[1], args[2], const_args[2], 1); |
1186 |
break;
|
1187 |
|
1188 |
case INDEX_op_rem_i32:
|
1189 |
case INDEX_op_remu_i32:
|
1190 |
tcg_out_div32(s, TCG_REG_T1, args[1], args[2], const_args[2], |
1191 |
opc == INDEX_op_remu_i32); |
1192 |
tcg_out_arithc(s, TCG_REG_T1, TCG_REG_T1, args[2], const_args[2], |
1193 |
ARITH_UMUL); |
1194 |
tcg_out_arith(s, args[0], args[1], TCG_REG_T1, ARITH_SUB); |
1195 |
break;
|
1196 |
|
1197 |
case INDEX_op_brcond_i32:
|
1198 |
tcg_out_brcond_i32(s, args[2], args[0], args[1], const_args[1], |
1199 |
args[3]);
|
1200 |
break;
|
1201 |
case INDEX_op_setcond_i32:
|
1202 |
tcg_out_setcond_i32(s, args[3], args[0], args[1], |
1203 |
args[2], const_args[2]); |
1204 |
break;
|
1205 |
|
1206 |
#if TCG_TARGET_REG_BITS == 32 |
1207 |
case INDEX_op_brcond2_i32:
|
1208 |
tcg_out_brcond2_i32(s, args[4], args[0], args[1], |
1209 |
args[2], const_args[2], |
1210 |
args[3], const_args[3], args[5]); |
1211 |
break;
|
1212 |
case INDEX_op_setcond2_i32:
|
1213 |
tcg_out_setcond2_i32(s, args[5], args[0], args[1], args[2], |
1214 |
args[3], const_args[3], |
1215 |
args[4], const_args[4]); |
1216 |
break;
|
1217 |
case INDEX_op_add2_i32:
|
1218 |
tcg_out_arithc(s, args[0], args[2], args[4], const_args[4], |
1219 |
ARITH_ADDCC); |
1220 |
tcg_out_arithc(s, args[1], args[3], args[5], const_args[5], |
1221 |
ARITH_ADDX); |
1222 |
break;
|
1223 |
case INDEX_op_sub2_i32:
|
1224 |
tcg_out_arithc(s, args[0], args[2], args[4], const_args[4], |
1225 |
ARITH_SUBCC); |
1226 |
tcg_out_arithc(s, args[1], args[3], args[5], const_args[5], |
1227 |
ARITH_SUBX); |
1228 |
break;
|
1229 |
case INDEX_op_mulu2_i32:
|
1230 |
tcg_out_arithc(s, args[0], args[2], args[3], const_args[3], |
1231 |
ARITH_UMUL); |
1232 |
tcg_out_rdy(s, args[1]);
|
1233 |
break;
|
1234 |
#endif
|
1235 |
|
1236 |
case INDEX_op_qemu_ld8u:
|
1237 |
tcg_out_qemu_ld(s, args, 0);
|
1238 |
break;
|
1239 |
case INDEX_op_qemu_ld8s:
|
1240 |
tcg_out_qemu_ld(s, args, 0 | 4); |
1241 |
break;
|
1242 |
case INDEX_op_qemu_ld16u:
|
1243 |
tcg_out_qemu_ld(s, args, 1);
|
1244 |
break;
|
1245 |
case INDEX_op_qemu_ld16s:
|
1246 |
tcg_out_qemu_ld(s, args, 1 | 4); |
1247 |
break;
|
1248 |
case INDEX_op_qemu_ld32:
|
1249 |
#if TCG_TARGET_REG_BITS == 64 |
1250 |
case INDEX_op_qemu_ld32u:
|
1251 |
#endif
|
1252 |
tcg_out_qemu_ld(s, args, 2);
|
1253 |
break;
|
1254 |
#if TCG_TARGET_REG_BITS == 64 |
1255 |
case INDEX_op_qemu_ld32s:
|
1256 |
tcg_out_qemu_ld(s, args, 2 | 4); |
1257 |
break;
|
1258 |
#endif
|
1259 |
case INDEX_op_qemu_ld64:
|
1260 |
tcg_out_qemu_ld(s, args, 3);
|
1261 |
break;
|
1262 |
case INDEX_op_qemu_st8:
|
1263 |
tcg_out_qemu_st(s, args, 0);
|
1264 |
break;
|
1265 |
case INDEX_op_qemu_st16:
|
1266 |
tcg_out_qemu_st(s, args, 1);
|
1267 |
break;
|
1268 |
case INDEX_op_qemu_st32:
|
1269 |
tcg_out_qemu_st(s, args, 2);
|
1270 |
break;
|
1271 |
case INDEX_op_qemu_st64:
|
1272 |
tcg_out_qemu_st(s, args, 3);
|
1273 |
break;
|
1274 |
|
1275 |
#if TCG_TARGET_REG_BITS == 64 |
1276 |
case INDEX_op_movi_i64:
|
1277 |
tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]); |
1278 |
break;
|
1279 |
case INDEX_op_ld32s_i64:
|
1280 |
tcg_out_ldst(s, args[0], args[1], args[2], LDSW); |
1281 |
break;
|
1282 |
case INDEX_op_ld_i64:
|
1283 |
tcg_out_ldst(s, args[0], args[1], args[2], LDX); |
1284 |
break;
|
1285 |
case INDEX_op_st_i64:
|
1286 |
tcg_out_ldst(s, args[0], args[1], args[2], STX); |
1287 |
break;
|
1288 |
case INDEX_op_shl_i64:
|
1289 |
c = SHIFT_SLLX; |
1290 |
do_shift64:
|
1291 |
/* Limit immediate shift count lest we create an illegal insn. */
|
1292 |
tcg_out_arithc(s, args[0], args[1], args[2] & 63, const_args[2], c); |
1293 |
break;
|
1294 |
case INDEX_op_shr_i64:
|
1295 |
c = SHIFT_SRLX; |
1296 |
goto do_shift64;
|
1297 |
case INDEX_op_sar_i64:
|
1298 |
c = SHIFT_SRAX; |
1299 |
goto do_shift64;
|
1300 |
case INDEX_op_mul_i64:
|
1301 |
c = ARITH_MULX; |
1302 |
goto gen_arith;
|
1303 |
case INDEX_op_div_i64:
|
1304 |
c = ARITH_SDIVX; |
1305 |
goto gen_arith;
|
1306 |
case INDEX_op_divu_i64:
|
1307 |
c = ARITH_UDIVX; |
1308 |
goto gen_arith;
|
1309 |
case INDEX_op_rem_i64:
|
1310 |
case INDEX_op_remu_i64:
|
1311 |
tcg_out_arithc(s, TCG_REG_T1, args[1], args[2], const_args[2], |
1312 |
opc == INDEX_op_rem_i64 ? ARITH_SDIVX : ARITH_UDIVX); |
1313 |
tcg_out_arithc(s, TCG_REG_T1, TCG_REG_T1, args[2], const_args[2], |
1314 |
ARITH_MULX); |
1315 |
tcg_out_arith(s, args[0], args[1], TCG_REG_T1, ARITH_SUB); |
1316 |
break;
|
1317 |
case INDEX_op_ext32s_i64:
|
1318 |
if (const_args[1]) { |
1319 |
tcg_out_movi(s, TCG_TYPE_I64, args[0], (int32_t)args[1]); |
1320 |
} else {
|
1321 |
tcg_out_arithi(s, args[0], args[1], 0, SHIFT_SRA); |
1322 |
} |
1323 |
break;
|
1324 |
case INDEX_op_ext32u_i64:
|
1325 |
if (const_args[1]) { |
1326 |
tcg_out_movi_imm32(s, args[0], args[1]); |
1327 |
} else {
|
1328 |
tcg_out_arithi(s, args[0], args[1], 0, SHIFT_SRL); |
1329 |
} |
1330 |
break;
|
1331 |
|
1332 |
case INDEX_op_brcond_i64:
|
1333 |
tcg_out_brcond_i64(s, args[2], args[0], args[1], const_args[1], |
1334 |
args[3]);
|
1335 |
break;
|
1336 |
case INDEX_op_setcond_i64:
|
1337 |
tcg_out_setcond_i64(s, args[3], args[0], args[1], |
1338 |
args[2], const_args[2]); |
1339 |
break;
|
1340 |
|
1341 |
#endif
|
1342 |
gen_arith:
|
1343 |
tcg_out_arithc(s, args[0], args[1], args[2], const_args[2], c); |
1344 |
break;
|
1345 |
|
1346 |
gen_arith1:
|
1347 |
tcg_out_arithc(s, args[0], TCG_REG_G0, args[1], const_args[1], c); |
1348 |
break;
|
1349 |
|
1350 |
default:
|
1351 |
fprintf(stderr, "unknown opcode 0x%x\n", opc);
|
1352 |
tcg_abort(); |
1353 |
} |
1354 |
} |
1355 |
|
1356 |
static const TCGTargetOpDef sparc_op_defs[] = { |
1357 |
{ INDEX_op_exit_tb, { } }, |
1358 |
{ INDEX_op_goto_tb, { } }, |
1359 |
{ INDEX_op_call, { "ri" } },
|
1360 |
{ INDEX_op_jmp, { "ri" } },
|
1361 |
{ INDEX_op_br, { } }, |
1362 |
|
1363 |
{ INDEX_op_mov_i32, { "r", "r" } }, |
1364 |
{ INDEX_op_movi_i32, { "r" } },
|
1365 |
{ INDEX_op_ld8u_i32, { "r", "r" } }, |
1366 |
{ INDEX_op_ld8s_i32, { "r", "r" } }, |
1367 |
{ INDEX_op_ld16u_i32, { "r", "r" } }, |
1368 |
{ INDEX_op_ld16s_i32, { "r", "r" } }, |
1369 |
{ INDEX_op_ld_i32, { "r", "r" } }, |
1370 |
{ INDEX_op_st8_i32, { "r", "r" } }, |
1371 |
{ INDEX_op_st16_i32, { "r", "r" } }, |
1372 |
{ INDEX_op_st_i32, { "r", "r" } }, |
1373 |
|
1374 |
{ INDEX_op_add_i32, { "r", "r", "rJ" } }, |
1375 |
{ INDEX_op_mul_i32, { "r", "r", "rJ" } }, |
1376 |
{ INDEX_op_div_i32, { "r", "r", "rJ" } }, |
1377 |
{ INDEX_op_divu_i32, { "r", "r", "rJ" } }, |
1378 |
{ INDEX_op_rem_i32, { "r", "r", "rJ" } }, |
1379 |
{ INDEX_op_remu_i32, { "r", "r", "rJ" } }, |
1380 |
{ INDEX_op_sub_i32, { "r", "r", "rJ" } }, |
1381 |
{ INDEX_op_and_i32, { "r", "r", "rJ" } }, |
1382 |
{ INDEX_op_andc_i32, { "r", "r", "rJ" } }, |
1383 |
{ INDEX_op_or_i32, { "r", "r", "rJ" } }, |
1384 |
{ INDEX_op_orc_i32, { "r", "r", "rJ" } }, |
1385 |
{ INDEX_op_xor_i32, { "r", "r", "rJ" } }, |
1386 |
|
1387 |
{ INDEX_op_shl_i32, { "r", "r", "rJ" } }, |
1388 |
{ INDEX_op_shr_i32, { "r", "r", "rJ" } }, |
1389 |
{ INDEX_op_sar_i32, { "r", "r", "rJ" } }, |
1390 |
|
1391 |
{ INDEX_op_neg_i32, { "r", "rJ" } }, |
1392 |
{ INDEX_op_not_i32, { "r", "rJ" } }, |
1393 |
|
1394 |
{ INDEX_op_brcond_i32, { "r", "rJ" } }, |
1395 |
{ INDEX_op_setcond_i32, { "r", "r", "rJ" } }, |
1396 |
|
1397 |
#if TCG_TARGET_REG_BITS == 32 |
1398 |
{ INDEX_op_brcond2_i32, { "r", "r", "rJ", "rJ" } }, |
1399 |
{ INDEX_op_setcond2_i32, { "r", "r", "r", "rJ", "rJ" } }, |
1400 |
{ INDEX_op_add2_i32, { "r", "r", "r", "r", "rJ", "rJ" } }, |
1401 |
{ INDEX_op_sub2_i32, { "r", "r", "r", "r", "rJ", "rJ" } }, |
1402 |
{ INDEX_op_mulu2_i32, { "r", "r", "r", "rJ" } }, |
1403 |
#endif
|
1404 |
|
1405 |
#if TCG_TARGET_REG_BITS == 64 |
1406 |
{ INDEX_op_mov_i64, { "r", "r" } }, |
1407 |
{ INDEX_op_movi_i64, { "r" } },
|
1408 |
{ INDEX_op_ld8u_i64, { "r", "r" } }, |
1409 |
{ INDEX_op_ld8s_i64, { "r", "r" } }, |
1410 |
{ INDEX_op_ld16u_i64, { "r", "r" } }, |
1411 |
{ INDEX_op_ld16s_i64, { "r", "r" } }, |
1412 |
{ INDEX_op_ld32u_i64, { "r", "r" } }, |
1413 |
{ INDEX_op_ld32s_i64, { "r", "r" } }, |
1414 |
{ INDEX_op_ld_i64, { "r", "r" } }, |
1415 |
{ INDEX_op_st8_i64, { "r", "r" } }, |
1416 |
{ INDEX_op_st16_i64, { "r", "r" } }, |
1417 |
{ INDEX_op_st32_i64, { "r", "r" } }, |
1418 |
{ INDEX_op_st_i64, { "r", "r" } }, |
1419 |
|
1420 |
{ INDEX_op_add_i64, { "r", "r", "rJ" } }, |
1421 |
{ INDEX_op_mul_i64, { "r", "r", "rJ" } }, |
1422 |
{ INDEX_op_div_i64, { "r", "r", "rJ" } }, |
1423 |
{ INDEX_op_divu_i64, { "r", "r", "rJ" } }, |
1424 |
{ INDEX_op_rem_i64, { "r", "r", "rJ" } }, |
1425 |
{ INDEX_op_remu_i64, { "r", "r", "rJ" } }, |
1426 |
{ INDEX_op_sub_i64, { "r", "r", "rJ" } }, |
1427 |
{ INDEX_op_and_i64, { "r", "r", "rJ" } }, |
1428 |
{ INDEX_op_andc_i64, { "r", "r", "rJ" } }, |
1429 |
{ INDEX_op_or_i64, { "r", "r", "rJ" } }, |
1430 |
{ INDEX_op_orc_i64, { "r", "r", "rJ" } }, |
1431 |
{ INDEX_op_xor_i64, { "r", "r", "rJ" } }, |
1432 |
|
1433 |
{ INDEX_op_shl_i64, { "r", "r", "rJ" } }, |
1434 |
{ INDEX_op_shr_i64, { "r", "r", "rJ" } }, |
1435 |
{ INDEX_op_sar_i64, { "r", "r", "rJ" } }, |
1436 |
|
1437 |
{ INDEX_op_neg_i64, { "r", "rJ" } }, |
1438 |
{ INDEX_op_not_i64, { "r", "rJ" } }, |
1439 |
|
1440 |
{ INDEX_op_ext32s_i64, { "r", "ri" } }, |
1441 |
{ INDEX_op_ext32u_i64, { "r", "ri" } }, |
1442 |
|
1443 |
{ INDEX_op_brcond_i64, { "r", "rJ" } }, |
1444 |
{ INDEX_op_setcond_i64, { "r", "r", "rJ" } }, |
1445 |
#endif
|
1446 |
|
1447 |
#if TCG_TARGET_REG_BITS == 64 |
1448 |
{ INDEX_op_qemu_ld8u, { "r", "L" } }, |
1449 |
{ INDEX_op_qemu_ld8s, { "r", "L" } }, |
1450 |
{ INDEX_op_qemu_ld16u, { "r", "L" } }, |
1451 |
{ INDEX_op_qemu_ld16s, { "r", "L" } }, |
1452 |
{ INDEX_op_qemu_ld32, { "r", "L" } }, |
1453 |
{ INDEX_op_qemu_ld32u, { "r", "L" } }, |
1454 |
{ INDEX_op_qemu_ld32s, { "r", "L" } }, |
1455 |
{ INDEX_op_qemu_ld64, { "r", "L" } }, |
1456 |
|
1457 |
{ INDEX_op_qemu_st8, { "L", "L" } }, |
1458 |
{ INDEX_op_qemu_st16, { "L", "L" } }, |
1459 |
{ INDEX_op_qemu_st32, { "L", "L" } }, |
1460 |
{ INDEX_op_qemu_st64, { "L", "L" } }, |
1461 |
#elif TARGET_LONG_BITS <= TCG_TARGET_REG_BITS
|
1462 |
{ INDEX_op_qemu_ld8u, { "r", "L" } }, |
1463 |
{ INDEX_op_qemu_ld8s, { "r", "L" } }, |
1464 |
{ INDEX_op_qemu_ld16u, { "r", "L" } }, |
1465 |
{ INDEX_op_qemu_ld16s, { "r", "L" } }, |
1466 |
{ INDEX_op_qemu_ld32, { "r", "L" } }, |
1467 |
{ INDEX_op_qemu_ld64, { "r", "r", "L" } }, |
1468 |
|
1469 |
{ INDEX_op_qemu_st8, { "L", "L" } }, |
1470 |
{ INDEX_op_qemu_st16, { "L", "L" } }, |
1471 |
{ INDEX_op_qemu_st32, { "L", "L" } }, |
1472 |
{ INDEX_op_qemu_st64, { "L", "L", "L" } }, |
1473 |
#else
|
1474 |
{ INDEX_op_qemu_ld8u, { "r", "L", "L" } }, |
1475 |
{ INDEX_op_qemu_ld8s, { "r", "L", "L" } }, |
1476 |
{ INDEX_op_qemu_ld16u, { "r", "L", "L" } }, |
1477 |
{ INDEX_op_qemu_ld16s, { "r", "L", "L" } }, |
1478 |
{ INDEX_op_qemu_ld32, { "r", "L", "L" } }, |
1479 |
{ INDEX_op_qemu_ld64, { "L", "L", "L", "L" } }, |
1480 |
|
1481 |
{ INDEX_op_qemu_st8, { "L", "L", "L" } }, |
1482 |
{ INDEX_op_qemu_st16, { "L", "L", "L" } }, |
1483 |
{ INDEX_op_qemu_st32, { "L", "L", "L" } }, |
1484 |
{ INDEX_op_qemu_st64, { "L", "L", "L", "L" } }, |
1485 |
#endif
|
1486 |
|
1487 |
{ -1 },
|
1488 |
}; |
1489 |
|
1490 |
static void tcg_target_init(TCGContext *s) |
1491 |
{ |
1492 |
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff); |
1493 |
#if TCG_TARGET_REG_BITS == 64 |
1494 |
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff); |
1495 |
#endif
|
1496 |
tcg_regset_set32(tcg_target_call_clobber_regs, 0,
|
1497 |
(1 << TCG_REG_G1) |
|
1498 |
(1 << TCG_REG_G2) |
|
1499 |
(1 << TCG_REG_G3) |
|
1500 |
(1 << TCG_REG_G4) |
|
1501 |
(1 << TCG_REG_G5) |
|
1502 |
(1 << TCG_REG_G6) |
|
1503 |
(1 << TCG_REG_G7) |
|
1504 |
(1 << TCG_REG_O0) |
|
1505 |
(1 << TCG_REG_O1) |
|
1506 |
(1 << TCG_REG_O2) |
|
1507 |
(1 << TCG_REG_O3) |
|
1508 |
(1 << TCG_REG_O4) |
|
1509 |
(1 << TCG_REG_O5) |
|
1510 |
(1 << TCG_REG_O7));
|
1511 |
|
1512 |
tcg_regset_clear(s->reserved_regs); |
1513 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_G0); /* zero */
|
1514 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_G6); /* reserved for os */
|
1515 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_G7); /* thread pointer */
|
1516 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_I6); /* frame pointer */
|
1517 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_I7); /* return address */
|
1518 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_O6); /* stack pointer */
|
1519 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_T1); /* for internal use */
|
1520 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_T2); /* for internal use */
|
1521 |
|
1522 |
tcg_add_target_add_op_defs(sparc_op_defs); |
1523 |
} |
1524 |
|
1525 |
#if TCG_TARGET_REG_BITS == 64 |
1526 |
# define ELF_HOST_MACHINE EM_SPARCV9
|
1527 |
#else
|
1528 |
# define ELF_HOST_MACHINE EM_SPARC32PLUS
|
1529 |
# define ELF_HOST_FLAGS EF_SPARC_32PLUS
|
1530 |
#endif
|
1531 |
|
1532 |
typedef struct { |
1533 |
uint32_t len __attribute__((aligned((sizeof(void *))))); |
1534 |
uint32_t id; |
1535 |
uint8_t version; |
1536 |
char augmentation[1]; |
1537 |
uint8_t code_align; |
1538 |
uint8_t data_align; |
1539 |
uint8_t return_column; |
1540 |
} DebugFrameCIE; |
1541 |
|
1542 |
typedef struct { |
1543 |
uint32_t len __attribute__((aligned((sizeof(void *))))); |
1544 |
uint32_t cie_offset; |
1545 |
tcg_target_long func_start __attribute__((packed)); |
1546 |
tcg_target_long func_len __attribute__((packed)); |
1547 |
uint8_t def_cfa[TCG_TARGET_REG_BITS == 64 ? 4 : 2]; |
1548 |
uint8_t win_save; |
1549 |
uint8_t ret_save[3];
|
1550 |
} DebugFrameFDE; |
1551 |
|
1552 |
typedef struct { |
1553 |
DebugFrameCIE cie; |
1554 |
DebugFrameFDE fde; |
1555 |
} DebugFrame; |
1556 |
|
1557 |
static DebugFrame debug_frame = {
|
1558 |
.cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */ |
1559 |
.cie.id = -1,
|
1560 |
.cie.version = 1,
|
1561 |
.cie.code_align = 1,
|
1562 |
.cie.data_align = -sizeof(void *) & 0x7f, |
1563 |
.cie.return_column = 15, /* o7 */ |
1564 |
|
1565 |
.fde.len = sizeof(DebugFrameFDE)-4, /* length after .len member */ |
1566 |
.fde.def_cfa = { |
1567 |
#if TCG_TARGET_REG_BITS == 64 |
1568 |
12, 30, /* DW_CFA_def_cfa i6, 2047 */ |
1569 |
(2047 & 0x7f) | 0x80, (2047 >> 7) |
1570 |
#else
|
1571 |
13, 30 /* DW_CFA_def_cfa_register i6 */ |
1572 |
#endif
|
1573 |
}, |
1574 |
.fde.win_save = 0x2d, /* DW_CFA_GNU_window_save */ |
1575 |
.fde.ret_save = { 9, 15, 31 }, /* DW_CFA_register o7, i7 */ |
1576 |
}; |
1577 |
|
1578 |
void tcg_register_jit(void *buf, size_t buf_size) |
1579 |
{ |
1580 |
debug_frame.fde.func_start = (tcg_target_long) buf; |
1581 |
debug_frame.fde.func_len = buf_size; |
1582 |
|
1583 |
tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame));
|
1584 |
} |