1705 lines
53 KiB
C
1705 lines
53 KiB
C
/*
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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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#include "tcg-be-null.h"
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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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#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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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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TCG_REG_G2,
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TCG_REG_G3,
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TCG_REG_G4,
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TCG_REG_G5,
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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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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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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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#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_IMM10(x) ((1 << 13) | ((x) & 0x3ff))
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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_OFF16(x) ((((x) >> 2) & 0x3fff) | ((((x) >> 16) & 3) << 20))
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#define INSN_OFF19(x) (((x) >> 2) & 0x07ffff)
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#define INSN_COND(x) ((x) << 25)
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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) | INSN_OP2(0x2))
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#define RCOND_Z 1
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#define RCOND_LEZ 2
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#define RCOND_LZ 3
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#define RCOND_NZ 5
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#define RCOND_GZ 6
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#define RCOND_GEZ 7
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#define MOVCC_ICC (1 << 18)
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#define MOVCC_XCC (1 << 18 | 1 << 12)
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#define BPCC_ICC 0
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#define BPCC_XCC (2 << 20)
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#define BPCC_PT (1 << 19)
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#define BPCC_PN 0
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#define BPCC_A (1 << 29)
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#define BPR_PT BPCC_PT
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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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#define ARITH_MOVR (INSN_OP(2) | INSN_OP3(0x2f))
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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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#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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#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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#ifndef ASI_PRIMARY_LITTLE
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#define ASI_PRIMARY_LITTLE 0x88
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#endif
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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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#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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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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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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static void patch_reloc(uint8_t *code_ptr, int type,
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intptr_t value, intptr_t addend)
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{
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uint32_t insn;
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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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}
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*(uint32_t *)code_ptr = value;
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break;
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case R_SPARC_WDISP16:
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value -= (intptr_t)code_ptr;
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if (!check_fit_tl(value >> 2, 16)) {
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tcg_abort();
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}
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insn = *(uint32_t *)code_ptr;
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insn &= ~INSN_OFF16(-1);
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insn |= INSN_OFF16(value);
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*(uint32_t *)code_ptr = insn;
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break;
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case R_SPARC_WDISP19:
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value -= (intptr_t)code_ptr;
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if (!check_fit_tl(value >> 2, 19)) {
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tcg_abort();
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}
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insn = *(uint32_t *)code_ptr;
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insn &= ~INSN_OFF19(-1);
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insn |= INSN_OFF19(value);
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*(uint32_t *)code_ptr = insn;
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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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/* 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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case 'Z':
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ct->ct |= TCG_CT_CONST_ZERO;
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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 = 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_ZERO) && val == 0) {
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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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}
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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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static inline void tcg_out_arithi(TCGContext *s, int rd, int rs1,
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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));
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}
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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)
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{
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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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}
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static inline void tcg_out_mov(TCGContext *s, TCGType type,
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TCGReg ret, TCGReg arg)
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{
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if (ret != arg) {
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tcg_out_arith(s, ret, arg, TCG_REG_G0, ARITH_OR);
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}
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}
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static inline void tcg_out_sethi(TCGContext *s, int ret, uint32_t arg)
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{
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tcg_out32(s, SETHI | INSN_RD(ret) | ((arg & 0xfffffc00) >> 10));
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}
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static inline void tcg_out_movi_imm13(TCGContext *s, int ret, uint32_t arg)
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{
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tcg_out_arithi(s, ret, TCG_REG_G0, arg, ARITH_OR);
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}
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static void tcg_out_movi(TCGContext *s, TCGType type,
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TCGReg ret, tcg_target_long arg)
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{
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tcg_target_long hi, lo;
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/* A 13-bit constant sign-extended to 64-bits. */
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if (check_fit_tl(arg, 13)) {
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tcg_out_movi_imm13(s, ret, arg);
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return;
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}
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/* A 32-bit constant, or 32-bit zero-extended to 64-bits. */
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if (TCG_TARGET_REG_BITS == 32
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|| type == TCG_TYPE_I32
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|| (arg & ~0xffffffffu) == 0) {
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tcg_out_sethi(s, ret, arg);
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if (arg & 0x3ff) {
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tcg_out_arithi(s, ret, ret, arg & 0x3ff, ARITH_OR);
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}
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return;
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}
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/* A 32-bit constant sign-extended to 64-bits. */
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if (check_fit_tl(arg, 32)) {
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tcg_out_sethi(s, ret, ~arg);
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tcg_out_arithi(s, ret, ret, (arg & 0x3ff) | -0x400, ARITH_XOR);
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return;
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}
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/* A 64-bit constant decomposed into 2 32-bit pieces. */
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lo = (int32_t)arg;
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if (check_fit_tl(lo, 13)) {
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hi = (arg - lo) >> 31 >> 1;
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tcg_out_movi(s, TCG_TYPE_I32, ret, hi);
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tcg_out_arithi(s, ret, ret, 32, SHIFT_SLLX);
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tcg_out_arithi(s, ret, ret, lo, ARITH_ADD);
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} else {
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hi = arg >> 31 >> 1;
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tcg_out_movi(s, TCG_TYPE_I32, ret, hi);
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tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_T2, lo);
|
|
tcg_out_arithi(s, ret, ret, 32, SHIFT_SLLX);
|
|
tcg_out_arith(s, ret, ret, TCG_REG_T2, ARITH_OR);
|
|
}
|
|
}
|
|
|
|
static inline void tcg_out_ldst_rr(TCGContext *s, int data, int a1,
|
|
int a2, int op)
|
|
{
|
|
tcg_out32(s, op | INSN_RD(data) | INSN_RS1(a1) | INSN_RS2(a2));
|
|
}
|
|
|
|
static inline void tcg_out_ldst(TCGContext *s, int ret, int addr,
|
|
int offset, int op)
|
|
{
|
|
if (check_fit_tl(offset, 13)) {
|
|
tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(addr) |
|
|
INSN_IMM13(offset));
|
|
} else {
|
|
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T1, offset);
|
|
tcg_out_ldst_rr(s, ret, addr, TCG_REG_T1, op);
|
|
}
|
|
}
|
|
|
|
static inline void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret,
|
|
TCGReg arg1, intptr_t arg2)
|
|
{
|
|
tcg_out_ldst(s, ret, arg1, arg2, (type == TCG_TYPE_I32 ? LDUW : LDX));
|
|
}
|
|
|
|
static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg,
|
|
TCGReg arg1, intptr_t arg2)
|
|
{
|
|
tcg_out_ldst(s, arg, arg1, arg2, (type == TCG_TYPE_I32 ? STW : STX));
|
|
}
|
|
|
|
static inline void tcg_out_ld_ptr(TCGContext *s, TCGReg ret, uintptr_t arg)
|
|
{
|
|
TCGReg base = TCG_REG_G0;
|
|
if (!check_fit_tl(arg, 10)) {
|
|
tcg_out_movi(s, TCG_TYPE_PTR, ret, arg & ~0x3ff);
|
|
base = ret;
|
|
}
|
|
tcg_out_ld(s, TCG_TYPE_PTR, ret, base, arg & 0x3ff);
|
|
}
|
|
|
|
static inline void tcg_out_sety(TCGContext *s, int rs)
|
|
{
|
|
tcg_out32(s, WRY | INSN_RS1(TCG_REG_G0) | INSN_RS2(rs));
|
|
}
|
|
|
|
static inline void tcg_out_rdy(TCGContext *s, int rd)
|
|
{
|
|
tcg_out32(s, RDY | INSN_RD(rd));
|
|
}
|
|
|
|
static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
|
|
{
|
|
if (val != 0) {
|
|
if (check_fit_tl(val, 13))
|
|
tcg_out_arithi(s, reg, reg, val, ARITH_ADD);
|
|
else {
|
|
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T1, val);
|
|
tcg_out_arith(s, reg, reg, TCG_REG_T1, ARITH_ADD);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void tcg_out_div32(TCGContext *s, int rd, int rs1,
|
|
int val2, int val2const, int uns)
|
|
{
|
|
/* Load Y with the sign/zero extension of RS1 to 64-bits. */
|
|
if (uns) {
|
|
tcg_out_sety(s, TCG_REG_G0);
|
|
} else {
|
|
tcg_out_arithi(s, TCG_REG_T1, rs1, 31, SHIFT_SRA);
|
|
tcg_out_sety(s, TCG_REG_T1);
|
|
}
|
|
|
|
tcg_out_arithc(s, rd, rs1, val2, val2const,
|
|
uns ? ARITH_UDIV : ARITH_SDIV);
|
|
}
|
|
|
|
static inline void tcg_out_nop(TCGContext *s)
|
|
{
|
|
tcg_out_sethi(s, TCG_REG_G0, 0);
|
|
}
|
|
|
|
static const uint8_t tcg_cond_to_bcond[] = {
|
|
[TCG_COND_EQ] = COND_E,
|
|
[TCG_COND_NE] = COND_NE,
|
|
[TCG_COND_LT] = COND_L,
|
|
[TCG_COND_GE] = COND_GE,
|
|
[TCG_COND_LE] = COND_LE,
|
|
[TCG_COND_GT] = COND_G,
|
|
[TCG_COND_LTU] = COND_CS,
|
|
[TCG_COND_GEU] = COND_CC,
|
|
[TCG_COND_LEU] = COND_LEU,
|
|
[TCG_COND_GTU] = COND_GU,
|
|
};
|
|
|
|
static const uint8_t tcg_cond_to_rcond[] = {
|
|
[TCG_COND_EQ] = RCOND_Z,
|
|
[TCG_COND_NE] = RCOND_NZ,
|
|
[TCG_COND_LT] = RCOND_LZ,
|
|
[TCG_COND_GT] = RCOND_GZ,
|
|
[TCG_COND_LE] = RCOND_LEZ,
|
|
[TCG_COND_GE] = RCOND_GEZ
|
|
};
|
|
|
|
static void tcg_out_bpcc0(TCGContext *s, int scond, int flags, int off19)
|
|
{
|
|
tcg_out32(s, INSN_OP(0) | INSN_OP2(1) | INSN_COND(scond) | flags | off19);
|
|
}
|
|
|
|
static void tcg_out_bpcc(TCGContext *s, int scond, int flags, int label)
|
|
{
|
|
TCGLabel *l = &s->labels[label];
|
|
int off19;
|
|
|
|
if (l->has_value) {
|
|
off19 = INSN_OFF19(l->u.value - (unsigned long)s->code_ptr);
|
|
} else {
|
|
/* Make sure to preserve destinations during retranslation. */
|
|
off19 = *(uint32_t *)s->code_ptr & INSN_OFF19(-1);
|
|
tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP19, label, 0);
|
|
}
|
|
tcg_out_bpcc0(s, scond, flags, off19);
|
|
}
|
|
|
|
static void tcg_out_cmp(TCGContext *s, TCGArg c1, TCGArg c2, int c2const)
|
|
{
|
|
tcg_out_arithc(s, TCG_REG_G0, c1, c2, c2const, ARITH_SUBCC);
|
|
}
|
|
|
|
static void tcg_out_brcond_i32(TCGContext *s, TCGCond cond, TCGArg arg1,
|
|
TCGArg arg2, int const_arg2, int label)
|
|
{
|
|
tcg_out_cmp(s, arg1, arg2, const_arg2);
|
|
tcg_out_bpcc(s, tcg_cond_to_bcond[cond], BPCC_ICC | BPCC_PT, label);
|
|
tcg_out_nop(s);
|
|
}
|
|
|
|
static void tcg_out_movcc(TCGContext *s, TCGCond cond, int cc, TCGArg ret,
|
|
TCGArg v1, int v1const)
|
|
{
|
|
tcg_out32(s, ARITH_MOVCC | cc | INSN_RD(ret)
|
|
| INSN_RS1(tcg_cond_to_bcond[cond])
|
|
| (v1const ? INSN_IMM11(v1) : INSN_RS2(v1)));
|
|
}
|
|
|
|
static void tcg_out_movcond_i32(TCGContext *s, TCGCond cond, TCGArg ret,
|
|
TCGArg c1, TCGArg c2, int c2const,
|
|
TCGArg v1, int v1const)
|
|
{
|
|
tcg_out_cmp(s, c1, c2, c2const);
|
|
tcg_out_movcc(s, cond, MOVCC_ICC, ret, v1, v1const);
|
|
}
|
|
|
|
#if TCG_TARGET_REG_BITS == 64
|
|
static void tcg_out_brcond_i64(TCGContext *s, TCGCond cond, TCGArg arg1,
|
|
TCGArg arg2, int const_arg2, int label)
|
|
{
|
|
/* For 64-bit signed comparisons vs zero, we can avoid the compare. */
|
|
if (arg2 == 0 && !is_unsigned_cond(cond)) {
|
|
TCGLabel *l = &s->labels[label];
|
|
int off16;
|
|
|
|
if (l->has_value) {
|
|
off16 = INSN_OFF16(l->u.value - (unsigned long)s->code_ptr);
|
|
} else {
|
|
/* Make sure to preserve destinations during retranslation. */
|
|
off16 = *(uint32_t *)s->code_ptr & INSN_OFF16(-1);
|
|
tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP16, label, 0);
|
|
}
|
|
tcg_out32(s, INSN_OP(0) | INSN_OP2(3) | BPR_PT | INSN_RS1(arg1)
|
|
| INSN_COND(tcg_cond_to_rcond[cond]) | off16);
|
|
} else {
|
|
tcg_out_cmp(s, arg1, arg2, const_arg2);
|
|
tcg_out_bpcc(s, tcg_cond_to_bcond[cond], BPCC_XCC | BPCC_PT, label);
|
|
}
|
|
tcg_out_nop(s);
|
|
}
|
|
|
|
static void tcg_out_movr(TCGContext *s, TCGCond cond, TCGArg ret, TCGArg c1,
|
|
TCGArg v1, int v1const)
|
|
{
|
|
tcg_out32(s, ARITH_MOVR | INSN_RD(ret) | INSN_RS1(c1)
|
|
| (tcg_cond_to_rcond[cond] << 10)
|
|
| (v1const ? INSN_IMM10(v1) : INSN_RS2(v1)));
|
|
}
|
|
|
|
static void tcg_out_movcond_i64(TCGContext *s, TCGCond cond, TCGArg ret,
|
|
TCGArg c1, TCGArg c2, int c2const,
|
|
TCGArg v1, int v1const)
|
|
{
|
|
/* For 64-bit signed comparisons vs zero, we can avoid the compare.
|
|
Note that the immediate range is one bit smaller, so we must check
|
|
for that as well. */
|
|
if (c2 == 0 && !is_unsigned_cond(cond)
|
|
&& (!v1const || check_fit_tl(v1, 10))) {
|
|
tcg_out_movr(s, cond, ret, c1, v1, v1const);
|
|
} else {
|
|
tcg_out_cmp(s, c1, c2, c2const);
|
|
tcg_out_movcc(s, cond, MOVCC_XCC, ret, v1, v1const);
|
|
}
|
|
}
|
|
#else
|
|
static void tcg_out_brcond2_i32(TCGContext *s, TCGCond cond,
|
|
TCGArg al, TCGArg ah,
|
|
TCGArg bl, int blconst,
|
|
TCGArg bh, int bhconst, int label_dest)
|
|
{
|
|
int scond, label_next = gen_new_label();
|
|
|
|
tcg_out_cmp(s, ah, bh, bhconst);
|
|
|
|
/* Note that we fill one of the delay slots with the second compare. */
|
|
switch (cond) {
|
|
case TCG_COND_EQ:
|
|
tcg_out_bpcc(s, COND_NE, BPCC_ICC | BPCC_PT, label_next);
|
|
tcg_out_cmp(s, al, bl, blconst);
|
|
tcg_out_bpcc(s, COND_E, BPCC_ICC | BPCC_PT, label_dest);
|
|
break;
|
|
|
|
case TCG_COND_NE:
|
|
tcg_out_bpcc(s, COND_NE, BPCC_ICC | BPCC_PT, label_dest);
|
|
tcg_out_cmp(s, al, bl, blconst);
|
|
tcg_out_bpcc(s, COND_NE, BPCC_ICC | BPCC_PT, label_dest);
|
|
break;
|
|
|
|
default:
|
|
scond = tcg_cond_to_bcond[tcg_high_cond(cond)];
|
|
tcg_out_bpcc(s, scond, BPCC_ICC | BPCC_PT, label_dest);
|
|
tcg_out_nop(s);
|
|
tcg_out_bpcc(s, COND_NE, BPCC_ICC | BPCC_PT, label_next);
|
|
tcg_out_cmp(s, al, bl, blconst);
|
|
scond = tcg_cond_to_bcond[tcg_unsigned_cond(cond)];
|
|
tcg_out_bpcc(s, scond, BPCC_ICC | BPCC_PT, label_dest);
|
|
break;
|
|
}
|
|
tcg_out_nop(s);
|
|
|
|
tcg_out_label(s, label_next, s->code_ptr);
|
|
}
|
|
#endif
|
|
|
|
static void tcg_out_setcond_i32(TCGContext *s, TCGCond cond, TCGArg ret,
|
|
TCGArg c1, TCGArg c2, int c2const)
|
|
{
|
|
/* For 32-bit comparisons, we can play games with ADDX/SUBX. */
|
|
switch (cond) {
|
|
case TCG_COND_LTU:
|
|
case TCG_COND_GEU:
|
|
/* The result of the comparison is in the carry bit. */
|
|
break;
|
|
|
|
case TCG_COND_EQ:
|
|
case TCG_COND_NE:
|
|
/* For equality, we can transform to inequality vs zero. */
|
|
if (c2 != 0) {
|
|
tcg_out_arithc(s, ret, c1, c2, c2const, ARITH_XOR);
|
|
}
|
|
c1 = TCG_REG_G0, c2 = ret, c2const = 0;
|
|
cond = (cond == TCG_COND_EQ ? TCG_COND_GEU : TCG_COND_LTU);
|
|
break;
|
|
|
|
case TCG_COND_GTU:
|
|
case TCG_COND_LEU:
|
|
/* If we don't need to load a constant into a register, we can
|
|
swap the operands on GTU/LEU. There's no benefit to loading
|
|
the constant into a temporary register. */
|
|
if (!c2const || c2 == 0) {
|
|
TCGArg t = c1;
|
|
c1 = c2;
|
|
c2 = t;
|
|
c2const = 0;
|
|
cond = tcg_swap_cond(cond);
|
|
break;
|
|
}
|
|
/* FALLTHRU */
|
|
|
|
default:
|
|
tcg_out_cmp(s, c1, c2, c2const);
|
|
tcg_out_movi_imm13(s, ret, 0);
|
|
tcg_out_movcc(s, cond, MOVCC_ICC, ret, 1, 1);
|
|
return;
|
|
}
|
|
|
|
tcg_out_cmp(s, c1, c2, c2const);
|
|
if (cond == TCG_COND_LTU) {
|
|
tcg_out_arithi(s, ret, TCG_REG_G0, 0, ARITH_ADDX);
|
|
} else {
|
|
tcg_out_arithi(s, ret, TCG_REG_G0, -1, ARITH_SUBX);
|
|
}
|
|
}
|
|
|
|
#if TCG_TARGET_REG_BITS == 64
|
|
static void tcg_out_setcond_i64(TCGContext *s, TCGCond cond, TCGArg ret,
|
|
TCGArg c1, TCGArg c2, int c2const)
|
|
{
|
|
/* For 64-bit signed comparisons vs zero, we can avoid the compare
|
|
if the input does not overlap the output. */
|
|
if (c2 == 0 && !is_unsigned_cond(cond) && c1 != ret) {
|
|
tcg_out_movi_imm13(s, ret, 0);
|
|
tcg_out_movr(s, cond, ret, c1, 1, 1);
|
|
} else {
|
|
tcg_out_cmp(s, c1, c2, c2const);
|
|
tcg_out_movi_imm13(s, ret, 0);
|
|
tcg_out_movcc(s, cond, MOVCC_XCC, ret, 1, 1);
|
|
}
|
|
}
|
|
#else
|
|
static void tcg_out_setcond2_i32(TCGContext *s, TCGCond cond, TCGArg ret,
|
|
TCGArg al, TCGArg ah,
|
|
TCGArg bl, int blconst,
|
|
TCGArg bh, int bhconst)
|
|
{
|
|
int tmp = TCG_REG_T1;
|
|
|
|
/* Note that the low parts are fully consumed before tmp is set. */
|
|
if (ret != ah && (bhconst || ret != bh)) {
|
|
tmp = ret;
|
|
}
|
|
|
|
switch (cond) {
|
|
case TCG_COND_EQ:
|
|
case TCG_COND_NE:
|
|
if (bl == 0 && bh == 0) {
|
|
if (cond == TCG_COND_EQ) {
|
|
tcg_out_arith(s, TCG_REG_G0, al, ah, ARITH_ORCC);
|
|
tcg_out_movi(s, TCG_TYPE_I32, ret, 1);
|
|
} else {
|
|
tcg_out_arith(s, ret, al, ah, ARITH_ORCC);
|
|
}
|
|
} else {
|
|
tcg_out_setcond_i32(s, cond, tmp, al, bl, blconst);
|
|
tcg_out_cmp(s, ah, bh, bhconst);
|
|
tcg_out_mov(s, TCG_TYPE_I32, ret, tmp);
|
|
}
|
|
tcg_out_movcc(s, TCG_COND_NE, MOVCC_ICC, ret, cond == TCG_COND_NE, 1);
|
|
break;
|
|
|
|
default:
|
|
/* <= : ah < bh | (ah == bh && al <= bl) */
|
|
tcg_out_setcond_i32(s, tcg_unsigned_cond(cond), tmp, al, bl, blconst);
|
|
tcg_out_cmp(s, ah, bh, bhconst);
|
|
tcg_out_mov(s, TCG_TYPE_I32, ret, tmp);
|
|
tcg_out_movcc(s, TCG_COND_NE, MOVCC_ICC, ret, 0, 1);
|
|
tcg_out_movcc(s, tcg_high_cond(cond), MOVCC_ICC, ret, 1, 1);
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void tcg_out_addsub2(TCGContext *s, TCGArg rl, TCGArg rh,
|
|
TCGArg al, TCGArg ah, TCGArg bl, int blconst,
|
|
TCGArg bh, int bhconst, int opl, int oph)
|
|
{
|
|
TCGArg tmp = TCG_REG_T1;
|
|
|
|
/* Note that the low parts are fully consumed before tmp is set. */
|
|
if (rl != ah && (bhconst || rl != bh)) {
|
|
tmp = rl;
|
|
}
|
|
|
|
tcg_out_arithc(s, tmp, al, bl, blconst, opl);
|
|
tcg_out_arithc(s, rh, ah, bh, bhconst, oph);
|
|
tcg_out_mov(s, TCG_TYPE_I32, rl, tmp);
|
|
}
|
|
|
|
static inline void tcg_out_calli(TCGContext *s, uintptr_t dest)
|
|
{
|
|
intptr_t disp = dest - (uintptr_t)s->code_ptr;
|
|
|
|
if (disp == (int32_t)disp) {
|
|
tcg_out32(s, CALL | (uint32_t)disp >> 2);
|
|
} else {
|
|
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T1, dest & ~0xfff);
|
|
tcg_out_arithi(s, TCG_REG_O7, TCG_REG_T1, dest & 0xfff, JMPL);
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
static uintptr_t qemu_ld_trampoline[16];
|
|
static uintptr_t qemu_st_trampoline[16];
|
|
|
|
static void build_trampolines(TCGContext *s)
|
|
{
|
|
static uintptr_t const qemu_ld_helpers[16] = {
|
|
[MO_UB] = (uintptr_t)helper_ret_ldub_mmu,
|
|
[MO_SB] = (uintptr_t)helper_ret_ldsb_mmu,
|
|
[MO_LEUW] = (uintptr_t)helper_le_lduw_mmu,
|
|
[MO_LESW] = (uintptr_t)helper_le_ldsw_mmu,
|
|
[MO_LEUL] = (uintptr_t)helper_le_ldul_mmu,
|
|
[MO_LEQ] = (uintptr_t)helper_le_ldq_mmu,
|
|
[MO_BEUW] = (uintptr_t)helper_be_lduw_mmu,
|
|
[MO_BESW] = (uintptr_t)helper_be_ldsw_mmu,
|
|
[MO_BEUL] = (uintptr_t)helper_be_ldul_mmu,
|
|
[MO_BEQ] = (uintptr_t)helper_be_ldq_mmu,
|
|
};
|
|
static uintptr_t const qemu_st_helpers[16] = {
|
|
[MO_UB] = (uintptr_t)helper_ret_stb_mmu,
|
|
[MO_LEUW] = (uintptr_t)helper_le_stw_mmu,
|
|
[MO_LEUL] = (uintptr_t)helper_le_stl_mmu,
|
|
[MO_LEQ] = (uintptr_t)helper_le_stq_mmu,
|
|
[MO_BEUW] = (uintptr_t)helper_be_stw_mmu,
|
|
[MO_BEUL] = (uintptr_t)helper_be_stl_mmu,
|
|
[MO_BEQ] = (uintptr_t)helper_be_stq_mmu,
|
|
};
|
|
|
|
int i;
|
|
TCGReg ra;
|
|
uintptr_t tramp;
|
|
|
|
for (i = 0; i < 16; ++i) {
|
|
if (qemu_ld_helpers[i] == 0) {
|
|
continue;
|
|
}
|
|
|
|
/* May as well align the trampoline. */
|
|
tramp = (uintptr_t)s->code_ptr;
|
|
while (tramp & 15) {
|
|
tcg_out_nop(s);
|
|
tramp += 4;
|
|
}
|
|
qemu_ld_trampoline[i] = tramp;
|
|
|
|
/* Find the retaddr argument register. */
|
|
ra = TCG_REG_O3 + (TARGET_LONG_BITS > TCG_TARGET_REG_BITS);
|
|
|
|
/* Set the retaddr operand. */
|
|
tcg_out_mov(s, TCG_TYPE_PTR, ra, TCG_REG_O7);
|
|
/* Set the env operand. */
|
|
tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_O0, TCG_AREG0);
|
|
/* Tail call. */
|
|
tcg_out_calli(s, qemu_ld_helpers[i]);
|
|
tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_O7, ra);
|
|
}
|
|
|
|
for (i = 0; i < 16; ++i) {
|
|
if (qemu_st_helpers[i] == 0) {
|
|
continue;
|
|
}
|
|
|
|
/* May as well align the trampoline. */
|
|
tramp = (uintptr_t)s->code_ptr;
|
|
while (tramp & 15) {
|
|
tcg_out_nop(s);
|
|
tramp += 4;
|
|
}
|
|
qemu_st_trampoline[i] = tramp;
|
|
|
|
/* Find the retaddr argument. For 32-bit, this may be past the
|
|
last argument register, and need passing on the stack. */
|
|
ra = (TCG_REG_O4
|
|
+ (TARGET_LONG_BITS > TCG_TARGET_REG_BITS)
|
|
+ (TCG_TARGET_REG_BITS == 32 && (i & MO_SIZE) == MO_64));
|
|
|
|
/* Set the retaddr operand. */
|
|
if (ra >= TCG_REG_O6) {
|
|
tcg_out_st(s, TCG_TYPE_PTR, TCG_REG_O7, TCG_REG_CALL_STACK,
|
|
TCG_TARGET_CALL_STACK_OFFSET);
|
|
ra = TCG_REG_G1;
|
|
}
|
|
tcg_out_mov(s, TCG_TYPE_PTR, ra, TCG_REG_O7);
|
|
/* Set the env operand. */
|
|
tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_O0, TCG_AREG0);
|
|
/* Tail call. */
|
|
tcg_out_calli(s, qemu_st_helpers[i]);
|
|
tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_O7, ra);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* Generate global QEMU prologue and epilogue code */
|
|
static void tcg_target_qemu_prologue(TCGContext *s)
|
|
{
|
|
int tmp_buf_size, frame_size;
|
|
|
|
/* The TCG temp buffer is at the top of the frame, immediately
|
|
below the frame pointer. */
|
|
tmp_buf_size = CPU_TEMP_BUF_NLONGS * (int)sizeof(long);
|
|
tcg_set_frame(s, TCG_REG_I6, TCG_TARGET_STACK_BIAS - tmp_buf_size,
|
|
tmp_buf_size);
|
|
|
|
/* TCG_TARGET_CALL_STACK_OFFSET includes the stack bias, but is
|
|
otherwise the minimal frame usable by callees. */
|
|
frame_size = TCG_TARGET_CALL_STACK_OFFSET - TCG_TARGET_STACK_BIAS;
|
|
frame_size += TCG_STATIC_CALL_ARGS_SIZE + tmp_buf_size;
|
|
frame_size += TCG_TARGET_STACK_ALIGN - 1;
|
|
frame_size &= -TCG_TARGET_STACK_ALIGN;
|
|
tcg_out32(s, SAVE | INSN_RD(TCG_REG_O6) | INSN_RS1(TCG_REG_O6) |
|
|
INSN_IMM13(-frame_size));
|
|
|
|
#ifdef CONFIG_USE_GUEST_BASE
|
|
if (GUEST_BASE != 0) {
|
|
tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
|
|
}
|
|
#endif
|
|
|
|
tcg_out_arithi(s, TCG_REG_G0, TCG_REG_I1, 0, JMPL);
|
|
/* delay slot */
|
|
tcg_out_nop(s);
|
|
|
|
/* No epilogue required. We issue ret + restore directly in the TB. */
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
build_trampolines(s);
|
|
#endif
|
|
}
|
|
|
|
#if defined(CONFIG_SOFTMMU)
|
|
/* Perform the TLB load and compare.
|
|
|
|
Inputs:
|
|
ADDRLO and ADDRHI contain the possible two parts of the address.
|
|
|
|
MEM_INDEX and S_BITS are the memory context and log2 size of the load.
|
|
|
|
WHICH is the offset into the CPUTLBEntry structure of the slot to read.
|
|
This should be offsetof addr_read or addr_write.
|
|
|
|
The result of the TLB comparison is in %[ix]cc. The sanitized address
|
|
is in the returned register, maybe %o0. The TLB addend is in %o1. */
|
|
|
|
static TCGReg tcg_out_tlb_load(TCGContext *s, TCGReg addrlo, TCGReg addrhi,
|
|
int mem_index, TCGMemOp s_bits, int which)
|
|
{
|
|
const TCGReg r0 = TCG_REG_O0;
|
|
const TCGReg r1 = TCG_REG_O1;
|
|
const TCGReg r2 = TCG_REG_O2;
|
|
TCGReg addr = addrlo;
|
|
int tlb_ofs;
|
|
|
|
if (TCG_TARGET_REG_BITS == 32 && TARGET_LONG_BITS == 64) {
|
|
/* Assemble the 64-bit address in R0. */
|
|
tcg_out_arithi(s, r0, addrlo, 0, SHIFT_SRL);
|
|
tcg_out_arithi(s, r1, addrhi, 32, SHIFT_SLLX);
|
|
tcg_out_arith(s, r0, r0, r1, ARITH_OR);
|
|
addr = r0;
|
|
}
|
|
|
|
/* Shift the page number down. */
|
|
tcg_out_arithi(s, r1, addrlo, TARGET_PAGE_BITS, SHIFT_SRL);
|
|
|
|
/* Mask out the page offset, except for the required alignment. */
|
|
tcg_out_movi(s, TCG_TYPE_TL, TCG_REG_T1,
|
|
TARGET_PAGE_MASK | ((1 << s_bits) - 1));
|
|
|
|
/* Mask the tlb index. */
|
|
tcg_out_arithi(s, r1, r1, CPU_TLB_SIZE - 1, ARITH_AND);
|
|
|
|
/* Mask page, part 2. */
|
|
tcg_out_arith(s, r0, addr, TCG_REG_T1, ARITH_AND);
|
|
|
|
/* Shift the tlb index into place. */
|
|
tcg_out_arithi(s, r1, r1, CPU_TLB_ENTRY_BITS, SHIFT_SLL);
|
|
|
|
/* Relative to the current ENV. */
|
|
tcg_out_arith(s, r1, TCG_AREG0, r1, ARITH_ADD);
|
|
|
|
/* Find a base address that can load both tlb comparator and addend. */
|
|
tlb_ofs = offsetof(CPUArchState, tlb_table[mem_index][0]);
|
|
if (!check_fit_tl(tlb_ofs + sizeof(CPUTLBEntry), 13)) {
|
|
tcg_out_addi(s, r1, tlb_ofs & ~0x3ff);
|
|
tlb_ofs &= 0x3ff;
|
|
}
|
|
|
|
/* Load the tlb comparator and the addend. */
|
|
tcg_out_ld(s, TCG_TYPE_TL, r2, r1, tlb_ofs + which);
|
|
tcg_out_ld(s, TCG_TYPE_PTR, r1, r1, tlb_ofs+offsetof(CPUTLBEntry, addend));
|
|
|
|
/* subcc arg0, arg2, %g0 */
|
|
tcg_out_cmp(s, r0, r2, 0);
|
|
|
|
/* If the guest address must be zero-extended, do so now. */
|
|
if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) {
|
|
tcg_out_arithi(s, r0, addrlo, 0, SHIFT_SRL);
|
|
return r0;
|
|
}
|
|
return addrlo;
|
|
}
|
|
#endif /* CONFIG_SOFTMMU */
|
|
|
|
static const int qemu_ld_opc[16] = {
|
|
[MO_UB] = LDUB,
|
|
[MO_SB] = LDSB,
|
|
|
|
[MO_BEUW] = LDUH,
|
|
[MO_BESW] = LDSH,
|
|
[MO_BEUL] = LDUW,
|
|
[MO_BESL] = LDSW,
|
|
[MO_BEQ] = LDX,
|
|
|
|
[MO_LEUW] = LDUH_LE,
|
|
[MO_LESW] = LDSH_LE,
|
|
[MO_LEUL] = LDUW_LE,
|
|
[MO_LESL] = LDSW_LE,
|
|
[MO_LEQ] = LDX_LE,
|
|
};
|
|
|
|
static const int qemu_st_opc[16] = {
|
|
[MO_UB] = STB,
|
|
|
|
[MO_BEUW] = STH,
|
|
[MO_BEUL] = STW,
|
|
[MO_BEQ] = STX,
|
|
|
|
[MO_LEUW] = STH_LE,
|
|
[MO_LEUL] = STW_LE,
|
|
[MO_LEQ] = STX_LE,
|
|
};
|
|
|
|
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64)
|
|
{
|
|
TCGReg addrlo, datalo, datahi, addrhi __attribute__((unused));
|
|
TCGMemOp memop, s_bits;
|
|
#if defined(CONFIG_SOFTMMU)
|
|
TCGReg addrz, param;
|
|
uintptr_t func;
|
|
int memi;
|
|
uint32_t *label_ptr[2];
|
|
#endif
|
|
|
|
datalo = *args++;
|
|
datahi = (TCG_TARGET_REG_BITS == 32 && is64 ? *args++ : 0);
|
|
addrlo = *args++;
|
|
addrhi = (TARGET_LONG_BITS > TCG_TARGET_REG_BITS ? *args++ : 0);
|
|
memop = *args++;
|
|
s_bits = memop & MO_SIZE;
|
|
|
|
#if defined(CONFIG_SOFTMMU)
|
|
memi = *args++;
|
|
addrz = tcg_out_tlb_load(s, addrlo, addrhi, memi, s_bits,
|
|
offsetof(CPUTLBEntry, addr_read));
|
|
|
|
if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) {
|
|
int reg64;
|
|
|
|
/* bne,pn %[xi]cc, label0 */
|
|
label_ptr[0] = (uint32_t *)s->code_ptr;
|
|
tcg_out_bpcc0(s, COND_NE, BPCC_PN
|
|
| (TARGET_LONG_BITS == 64 ? BPCC_XCC : BPCC_ICC), 0);
|
|
tcg_out_nop(s);
|
|
|
|
/* TLB Hit. */
|
|
/* Load all 64-bits into an O/G register. */
|
|
reg64 = (datalo < 16 ? datalo : TCG_REG_O0);
|
|
tcg_out_ldst_rr(s, reg64, addrz, TCG_REG_O1, qemu_ld_opc[memop]);
|
|
|
|
/* Move the two 32-bit pieces into the destination registers. */
|
|
tcg_out_arithi(s, datahi, reg64, 32, SHIFT_SRLX);
|
|
if (reg64 != datalo) {
|
|
tcg_out_mov(s, TCG_TYPE_I32, datalo, reg64);
|
|
}
|
|
|
|
/* b,a,pt label1 */
|
|
label_ptr[1] = (uint32_t *)s->code_ptr;
|
|
tcg_out_bpcc0(s, COND_A, BPCC_A | BPCC_PT, 0);
|
|
} else {
|
|
/* The fast path is exactly one insn. Thus we can perform the
|
|
entire TLB Hit in the (annulled) delay slot of the branch
|
|
over the TLB Miss case. */
|
|
|
|
/* beq,a,pt %[xi]cc, label0 */
|
|
label_ptr[0] = NULL;
|
|
label_ptr[1] = (uint32_t *)s->code_ptr;
|
|
tcg_out_bpcc0(s, COND_E, BPCC_A | BPCC_PT
|
|
| (TARGET_LONG_BITS == 64 ? BPCC_XCC : BPCC_ICC), 0);
|
|
/* delay slot */
|
|
tcg_out_ldst_rr(s, datalo, addrz, TCG_REG_O1, qemu_ld_opc[memop]);
|
|
}
|
|
|
|
/* TLB Miss. */
|
|
|
|
if (label_ptr[0]) {
|
|
*label_ptr[0] |= INSN_OFF19((unsigned long)s->code_ptr -
|
|
(unsigned long)label_ptr[0]);
|
|
}
|
|
|
|
param = TCG_REG_O1;
|
|
if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) {
|
|
tcg_out_mov(s, TCG_TYPE_REG, param++, addrhi);
|
|
}
|
|
tcg_out_mov(s, TCG_TYPE_REG, param++, addrlo);
|
|
|
|
/* We use the helpers to extend SB and SW data, leaving the case
|
|
of SL needing explicit extending below. */
|
|
if ((memop & ~MO_BSWAP) == MO_SL) {
|
|
func = qemu_ld_trampoline[memop & ~MO_SIGN];
|
|
} else {
|
|
func = qemu_ld_trampoline[memop];
|
|
}
|
|
assert(func != 0);
|
|
tcg_out_calli(s, func);
|
|
/* delay slot */
|
|
tcg_out_movi(s, TCG_TYPE_I32, param, memi);
|
|
|
|
switch (memop & ~MO_BSWAP) {
|
|
case MO_SL:
|
|
tcg_out_arithi(s, datalo, TCG_REG_O0, 0, SHIFT_SRA);
|
|
break;
|
|
case MO_Q:
|
|
if (TCG_TARGET_REG_BITS == 32) {
|
|
tcg_out_mov(s, TCG_TYPE_REG, datahi, TCG_REG_O0);
|
|
tcg_out_mov(s, TCG_TYPE_REG, datalo, TCG_REG_O1);
|
|
break;
|
|
}
|
|
/* FALLTHRU */
|
|
default:
|
|
/* mov */
|
|
tcg_out_mov(s, TCG_TYPE_REG, datalo, TCG_REG_O0);
|
|
break;
|
|
}
|
|
|
|
*label_ptr[1] |= INSN_OFF19((unsigned long)s->code_ptr -
|
|
(unsigned long)label_ptr[1]);
|
|
#else
|
|
if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) {
|
|
tcg_out_arithi(s, TCG_REG_T1, addrlo, 0, SHIFT_SRL);
|
|
addrlo = TCG_REG_T1;
|
|
}
|
|
if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) {
|
|
int reg64 = (datalo < 16 ? datalo : TCG_REG_O0);
|
|
|
|
tcg_out_ldst_rr(s, reg64, addrlo,
|
|
(GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0),
|
|
qemu_ld_opc[memop]);
|
|
|
|
tcg_out_arithi(s, datahi, reg64, 32, SHIFT_SRLX);
|
|
if (reg64 != datalo) {
|
|
tcg_out_mov(s, TCG_TYPE_I32, datalo, reg64);
|
|
}
|
|
} else {
|
|
tcg_out_ldst_rr(s, datalo, addrlo,
|
|
(GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0),
|
|
qemu_ld_opc[memop]);
|
|
}
|
|
#endif /* CONFIG_SOFTMMU */
|
|
}
|
|
|
|
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64)
|
|
{
|
|
TCGReg addrlo, datalo, datahi, addrhi __attribute__((unused));
|
|
TCGMemOp memop, s_bits;
|
|
#if defined(CONFIG_SOFTMMU)
|
|
TCGReg addrz, datafull, param;
|
|
uintptr_t func;
|
|
int memi;
|
|
uint32_t *label_ptr;
|
|
#endif
|
|
|
|
datalo = *args++;
|
|
datahi = (TCG_TARGET_REG_BITS == 32 && is64 ? *args++ : 0);
|
|
addrlo = *args++;
|
|
addrhi = (TARGET_LONG_BITS > TCG_TARGET_REG_BITS ? *args++ : 0);
|
|
memop = *args++;
|
|
s_bits = memop & MO_SIZE;
|
|
|
|
#if defined(CONFIG_SOFTMMU)
|
|
memi = *args++;
|
|
addrz = tcg_out_tlb_load(s, addrlo, addrhi, memi, s_bits,
|
|
offsetof(CPUTLBEntry, addr_write));
|
|
|
|
datafull = datalo;
|
|
if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) {
|
|
/* Reconstruct the full 64-bit value. */
|
|
tcg_out_arithi(s, TCG_REG_T1, datalo, 0, SHIFT_SRL);
|
|
tcg_out_arithi(s, TCG_REG_O2, datahi, 32, SHIFT_SLLX);
|
|
tcg_out_arith(s, TCG_REG_O2, TCG_REG_T1, TCG_REG_O2, ARITH_OR);
|
|
datafull = TCG_REG_O2;
|
|
}
|
|
|
|
/* The fast path is exactly one insn. Thus we can perform the entire
|
|
TLB Hit in the (annulled) delay slot of the branch over TLB Miss. */
|
|
/* beq,a,pt %[xi]cc, label0 */
|
|
label_ptr = (uint32_t *)s->code_ptr;
|
|
tcg_out_bpcc0(s, COND_E, BPCC_A | BPCC_PT
|
|
| (TARGET_LONG_BITS == 64 ? BPCC_XCC : BPCC_ICC), 0);
|
|
/* delay slot */
|
|
tcg_out_ldst_rr(s, datafull, addrz, TCG_REG_O1, qemu_st_opc[memop]);
|
|
|
|
/* TLB Miss. */
|
|
|
|
param = TCG_REG_O1;
|
|
if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) {
|
|
tcg_out_mov(s, TCG_TYPE_REG, param++, addrhi);
|
|
}
|
|
tcg_out_mov(s, TCG_TYPE_REG, param++, addrlo);
|
|
if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) {
|
|
tcg_out_mov(s, TCG_TYPE_REG, param++, datahi);
|
|
}
|
|
tcg_out_mov(s, TCG_TYPE_REG, param++, datalo);
|
|
|
|
func = qemu_st_trampoline[memop];
|
|
assert(func != 0);
|
|
tcg_out_calli(s, func);
|
|
/* delay slot */
|
|
tcg_out_movi(s, TCG_TYPE_REG, param, memi);
|
|
|
|
*label_ptr |= INSN_OFF19((unsigned long)s->code_ptr -
|
|
(unsigned long)label_ptr);
|
|
#else
|
|
if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) {
|
|
tcg_out_arithi(s, TCG_REG_T1, addrlo, 0, SHIFT_SRL);
|
|
addrlo = TCG_REG_T1;
|
|
}
|
|
if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) {
|
|
tcg_out_arithi(s, TCG_REG_T1, datalo, 0, SHIFT_SRL);
|
|
tcg_out_arithi(s, TCG_REG_O2, datahi, 32, SHIFT_SLLX);
|
|
tcg_out_arith(s, TCG_REG_O2, TCG_REG_T1, TCG_REG_O2, ARITH_OR);
|
|
datalo = TCG_REG_O2;
|
|
}
|
|
tcg_out_ldst_rr(s, datalo, addrlo,
|
|
(GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0),
|
|
qemu_st_opc[memop]);
|
|
#endif /* CONFIG_SOFTMMU */
|
|
}
|
|
|
|
static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
|
|
const int *const_args)
|
|
{
|
|
int c;
|
|
|
|
switch (opc) {
|
|
case INDEX_op_exit_tb:
|
|
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I0, args[0]);
|
|
tcg_out_arithi(s, TCG_REG_G0, TCG_REG_I7, 8, JMPL);
|
|
tcg_out32(s, RESTORE | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_G0) |
|
|
INSN_RS2(TCG_REG_G0));
|
|
break;
|
|
case INDEX_op_goto_tb:
|
|
if (s->tb_jmp_offset) {
|
|
/* direct jump method */
|
|
uint32_t old_insn = *(uint32_t *)s->code_ptr;
|
|
s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
|
|
/* Make sure to preserve links during retranslation. */
|
|
tcg_out32(s, CALL | (old_insn & ~INSN_OP(-1)));
|
|
} else {
|
|
/* indirect jump method */
|
|
tcg_out_ld_ptr(s, TCG_REG_T1, (uintptr_t)(s->tb_next + args[0]));
|
|
tcg_out_arithi(s, TCG_REG_G0, TCG_REG_T1, 0, JMPL);
|
|
}
|
|
tcg_out_nop(s);
|
|
s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
|
|
break;
|
|
case INDEX_op_call:
|
|
if (const_args[0]) {
|
|
tcg_out_calli(s, args[0]);
|
|
} else {
|
|
tcg_out_arithi(s, TCG_REG_O7, args[0], 0, JMPL);
|
|
}
|
|
/* delay slot */
|
|
tcg_out_nop(s);
|
|
break;
|
|
case INDEX_op_br:
|
|
tcg_out_bpcc(s, COND_A, BPCC_PT, args[0]);
|
|
tcg_out_nop(s);
|
|
break;
|
|
case INDEX_op_movi_i32:
|
|
tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]);
|
|
break;
|
|
|
|
#if TCG_TARGET_REG_BITS == 64
|
|
#define OP_32_64(x) \
|
|
glue(glue(case INDEX_op_, x), _i32): \
|
|
glue(glue(case INDEX_op_, x), _i64)
|
|
#else
|
|
#define OP_32_64(x) \
|
|
glue(glue(case INDEX_op_, x), _i32)
|
|
#endif
|
|
OP_32_64(ld8u):
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LDUB);
|
|
break;
|
|
OP_32_64(ld8s):
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LDSB);
|
|
break;
|
|
OP_32_64(ld16u):
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LDUH);
|
|
break;
|
|
OP_32_64(ld16s):
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LDSH);
|
|
break;
|
|
case INDEX_op_ld_i32:
|
|
#if TCG_TARGET_REG_BITS == 64
|
|
case INDEX_op_ld32u_i64:
|
|
#endif
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LDUW);
|
|
break;
|
|
OP_32_64(st8):
|
|
tcg_out_ldst(s, args[0], args[1], args[2], STB);
|
|
break;
|
|
OP_32_64(st16):
|
|
tcg_out_ldst(s, args[0], args[1], args[2], STH);
|
|
break;
|
|
case INDEX_op_st_i32:
|
|
#if TCG_TARGET_REG_BITS == 64
|
|
case INDEX_op_st32_i64:
|
|
#endif
|
|
tcg_out_ldst(s, args[0], args[1], args[2], STW);
|
|
break;
|
|
OP_32_64(add):
|
|
c = ARITH_ADD;
|
|
goto gen_arith;
|
|
OP_32_64(sub):
|
|
c = ARITH_SUB;
|
|
goto gen_arith;
|
|
OP_32_64(and):
|
|
c = ARITH_AND;
|
|
goto gen_arith;
|
|
OP_32_64(andc):
|
|
c = ARITH_ANDN;
|
|
goto gen_arith;
|
|
OP_32_64(or):
|
|
c = ARITH_OR;
|
|
goto gen_arith;
|
|
OP_32_64(orc):
|
|
c = ARITH_ORN;
|
|
goto gen_arith;
|
|
OP_32_64(xor):
|
|
c = ARITH_XOR;
|
|
goto gen_arith;
|
|
case INDEX_op_shl_i32:
|
|
c = SHIFT_SLL;
|
|
do_shift32:
|
|
/* Limit immediate shift count lest we create an illegal insn. */
|
|
tcg_out_arithc(s, args[0], args[1], args[2] & 31, const_args[2], c);
|
|
break;
|
|
case INDEX_op_shr_i32:
|
|
c = SHIFT_SRL;
|
|
goto do_shift32;
|
|
case INDEX_op_sar_i32:
|
|
c = SHIFT_SRA;
|
|
goto do_shift32;
|
|
case INDEX_op_mul_i32:
|
|
c = ARITH_UMUL;
|
|
goto gen_arith;
|
|
|
|
OP_32_64(neg):
|
|
c = ARITH_SUB;
|
|
goto gen_arith1;
|
|
OP_32_64(not):
|
|
c = ARITH_ORN;
|
|
goto gen_arith1;
|
|
|
|
case INDEX_op_div_i32:
|
|
tcg_out_div32(s, args[0], args[1], args[2], const_args[2], 0);
|
|
break;
|
|
case INDEX_op_divu_i32:
|
|
tcg_out_div32(s, args[0], args[1], args[2], const_args[2], 1);
|
|
break;
|
|
|
|
case INDEX_op_brcond_i32:
|
|
tcg_out_brcond_i32(s, args[2], args[0], args[1], const_args[1],
|
|
args[3]);
|
|
break;
|
|
case INDEX_op_setcond_i32:
|
|
tcg_out_setcond_i32(s, args[3], args[0], args[1],
|
|
args[2], const_args[2]);
|
|
break;
|
|
case INDEX_op_movcond_i32:
|
|
tcg_out_movcond_i32(s, args[5], args[0], args[1],
|
|
args[2], const_args[2], args[3], const_args[3]);
|
|
break;
|
|
|
|
#if TCG_TARGET_REG_BITS == 32
|
|
case INDEX_op_brcond2_i32:
|
|
tcg_out_brcond2_i32(s, args[4], args[0], args[1],
|
|
args[2], const_args[2],
|
|
args[3], const_args[3], args[5]);
|
|
break;
|
|
case INDEX_op_setcond2_i32:
|
|
tcg_out_setcond2_i32(s, args[5], args[0], args[1], args[2],
|
|
args[3], const_args[3],
|
|
args[4], const_args[4]);
|
|
break;
|
|
#endif
|
|
|
|
case INDEX_op_add2_i32:
|
|
tcg_out_addsub2(s, args[0], args[1], args[2], args[3],
|
|
args[4], const_args[4], args[5], const_args[5],
|
|
ARITH_ADDCC, ARITH_ADDX);
|
|
break;
|
|
case INDEX_op_sub2_i32:
|
|
tcg_out_addsub2(s, args[0], args[1], args[2], args[3],
|
|
args[4], const_args[4], args[5], const_args[5],
|
|
ARITH_SUBCC, ARITH_SUBX);
|
|
break;
|
|
case INDEX_op_mulu2_i32:
|
|
tcg_out_arithc(s, args[0], args[2], args[3], const_args[3],
|
|
ARITH_UMUL);
|
|
tcg_out_rdy(s, args[1]);
|
|
break;
|
|
|
|
case INDEX_op_qemu_ld_i32:
|
|
tcg_out_qemu_ld(s, args, 0);
|
|
break;
|
|
case INDEX_op_qemu_ld_i64:
|
|
tcg_out_qemu_ld(s, args, 1);
|
|
break;
|
|
case INDEX_op_qemu_st_i32:
|
|
tcg_out_qemu_st(s, args, 0);
|
|
break;
|
|
case INDEX_op_qemu_st_i64:
|
|
tcg_out_qemu_st(s, args, 1);
|
|
break;
|
|
|
|
#if TCG_TARGET_REG_BITS == 64
|
|
case INDEX_op_movi_i64:
|
|
tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]);
|
|
break;
|
|
case INDEX_op_ld32s_i64:
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LDSW);
|
|
break;
|
|
case INDEX_op_ld_i64:
|
|
tcg_out_ldst(s, args[0], args[1], args[2], LDX);
|
|
break;
|
|
case INDEX_op_st_i64:
|
|
tcg_out_ldst(s, args[0], args[1], args[2], STX);
|
|
break;
|
|
case INDEX_op_shl_i64:
|
|
c = SHIFT_SLLX;
|
|
do_shift64:
|
|
/* Limit immediate shift count lest we create an illegal insn. */
|
|
tcg_out_arithc(s, args[0], args[1], args[2] & 63, const_args[2], c);
|
|
break;
|
|
case INDEX_op_shr_i64:
|
|
c = SHIFT_SRLX;
|
|
goto do_shift64;
|
|
case INDEX_op_sar_i64:
|
|
c = SHIFT_SRAX;
|
|
goto do_shift64;
|
|
case INDEX_op_mul_i64:
|
|
c = ARITH_MULX;
|
|
goto gen_arith;
|
|
case INDEX_op_div_i64:
|
|
c = ARITH_SDIVX;
|
|
goto gen_arith;
|
|
case INDEX_op_divu_i64:
|
|
c = ARITH_UDIVX;
|
|
goto gen_arith;
|
|
case INDEX_op_ext32s_i64:
|
|
tcg_out_arithi(s, args[0], args[1], 0, SHIFT_SRA);
|
|
break;
|
|
case INDEX_op_ext32u_i64:
|
|
tcg_out_arithi(s, args[0], args[1], 0, SHIFT_SRL);
|
|
break;
|
|
|
|
case INDEX_op_brcond_i64:
|
|
tcg_out_brcond_i64(s, args[2], args[0], args[1], const_args[1],
|
|
args[3]);
|
|
break;
|
|
case INDEX_op_setcond_i64:
|
|
tcg_out_setcond_i64(s, args[3], args[0], args[1],
|
|
args[2], const_args[2]);
|
|
break;
|
|
case INDEX_op_movcond_i64:
|
|
tcg_out_movcond_i64(s, args[5], args[0], args[1],
|
|
args[2], const_args[2], args[3], const_args[3]);
|
|
break;
|
|
#endif
|
|
gen_arith:
|
|
tcg_out_arithc(s, args[0], args[1], args[2], const_args[2], c);
|
|
break;
|
|
|
|
gen_arith1:
|
|
tcg_out_arithc(s, args[0], TCG_REG_G0, args[1], const_args[1], c);
|
|
break;
|
|
|
|
default:
|
|
fprintf(stderr, "unknown opcode 0x%x\n", opc);
|
|
tcg_abort();
|
|
}
|
|
}
|
|
|
|
static const TCGTargetOpDef sparc_op_defs[] = {
|
|
{ INDEX_op_exit_tb, { } },
|
|
{ INDEX_op_goto_tb, { } },
|
|
{ INDEX_op_call, { "ri" } },
|
|
{ INDEX_op_br, { } },
|
|
|
|
{ INDEX_op_mov_i32, { "r", "r" } },
|
|
{ INDEX_op_movi_i32, { "r" } },
|
|
{ INDEX_op_ld8u_i32, { "r", "r" } },
|
|
{ INDEX_op_ld8s_i32, { "r", "r" } },
|
|
{ INDEX_op_ld16u_i32, { "r", "r" } },
|
|
{ INDEX_op_ld16s_i32, { "r", "r" } },
|
|
{ INDEX_op_ld_i32, { "r", "r" } },
|
|
{ INDEX_op_st8_i32, { "rZ", "r" } },
|
|
{ INDEX_op_st16_i32, { "rZ", "r" } },
|
|
{ INDEX_op_st_i32, { "rZ", "r" } },
|
|
|
|
{ INDEX_op_add_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_mul_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_div_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_divu_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_sub_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_and_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_andc_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_or_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_orc_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_xor_i32, { "r", "rZ", "rJ" } },
|
|
|
|
{ INDEX_op_shl_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_shr_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_sar_i32, { "r", "rZ", "rJ" } },
|
|
|
|
{ INDEX_op_neg_i32, { "r", "rJ" } },
|
|
{ INDEX_op_not_i32, { "r", "rJ" } },
|
|
|
|
{ INDEX_op_brcond_i32, { "rZ", "rJ" } },
|
|
{ INDEX_op_setcond_i32, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_movcond_i32, { "r", "rZ", "rJ", "rI", "0" } },
|
|
|
|
#if TCG_TARGET_REG_BITS == 32
|
|
{ INDEX_op_brcond2_i32, { "rZ", "rZ", "rJ", "rJ" } },
|
|
{ INDEX_op_setcond2_i32, { "r", "rZ", "rZ", "rJ", "rJ" } },
|
|
#endif
|
|
|
|
{ INDEX_op_add2_i32, { "r", "r", "rZ", "rZ", "rJ", "rJ" } },
|
|
{ INDEX_op_sub2_i32, { "r", "r", "rZ", "rZ", "rJ", "rJ" } },
|
|
{ INDEX_op_mulu2_i32, { "r", "r", "rZ", "rJ" } },
|
|
|
|
#if TCG_TARGET_REG_BITS == 64
|
|
{ INDEX_op_mov_i64, { "r", "r" } },
|
|
{ INDEX_op_movi_i64, { "r" } },
|
|
{ INDEX_op_ld8u_i64, { "r", "r" } },
|
|
{ INDEX_op_ld8s_i64, { "r", "r" } },
|
|
{ INDEX_op_ld16u_i64, { "r", "r" } },
|
|
{ INDEX_op_ld16s_i64, { "r", "r" } },
|
|
{ INDEX_op_ld32u_i64, { "r", "r" } },
|
|
{ INDEX_op_ld32s_i64, { "r", "r" } },
|
|
{ INDEX_op_ld_i64, { "r", "r" } },
|
|
{ INDEX_op_st8_i64, { "rZ", "r" } },
|
|
{ INDEX_op_st16_i64, { "rZ", "r" } },
|
|
{ INDEX_op_st32_i64, { "rZ", "r" } },
|
|
{ INDEX_op_st_i64, { "rZ", "r" } },
|
|
|
|
{ INDEX_op_add_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_mul_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_div_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_divu_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_sub_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_and_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_andc_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_or_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_orc_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_xor_i64, { "r", "rZ", "rJ" } },
|
|
|
|
{ INDEX_op_shl_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_shr_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_sar_i64, { "r", "rZ", "rJ" } },
|
|
|
|
{ INDEX_op_neg_i64, { "r", "rJ" } },
|
|
{ INDEX_op_not_i64, { "r", "rJ" } },
|
|
|
|
{ INDEX_op_ext32s_i64, { "r", "r" } },
|
|
{ INDEX_op_ext32u_i64, { "r", "r" } },
|
|
|
|
{ INDEX_op_brcond_i64, { "rZ", "rJ" } },
|
|
{ INDEX_op_setcond_i64, { "r", "rZ", "rJ" } },
|
|
{ INDEX_op_movcond_i64, { "r", "rZ", "rJ", "rI", "0" } },
|
|
#endif
|
|
|
|
#if TCG_TARGET_REG_BITS == 64
|
|
{ INDEX_op_qemu_ld_i32, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld_i64, { "r", "L" } },
|
|
{ INDEX_op_qemu_st_i32, { "L", "L" } },
|
|
{ INDEX_op_qemu_st_i64, { "L", "L" } },
|
|
#elif TARGET_LONG_BITS <= TCG_TARGET_REG_BITS
|
|
{ INDEX_op_qemu_ld_i32, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld_i64, { "r", "r", "L" } },
|
|
{ INDEX_op_qemu_st_i32, { "L", "L" } },
|
|
{ INDEX_op_qemu_st_i64, { "L", "L", "L" } },
|
|
#else
|
|
{ INDEX_op_qemu_ld_i32, { "r", "L", "L" } },
|
|
{ INDEX_op_qemu_ld_i64, { "L", "L", "L", "L" } },
|
|
{ INDEX_op_qemu_st_i32, { "L", "L", "L" } },
|
|
{ INDEX_op_qemu_st_i64, { "L", "L", "L", "L" } },
|
|
#endif
|
|
|
|
{ -1 },
|
|
};
|
|
|
|
static void tcg_target_init(TCGContext *s)
|
|
{
|
|
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
|
|
#if TCG_TARGET_REG_BITS == 64
|
|
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff);
|
|
#endif
|
|
tcg_regset_set32(tcg_target_call_clobber_regs, 0,
|
|
(1 << TCG_REG_G1) |
|
|
(1 << TCG_REG_G2) |
|
|
(1 << TCG_REG_G3) |
|
|
(1 << TCG_REG_G4) |
|
|
(1 << TCG_REG_G5) |
|
|
(1 << TCG_REG_G6) |
|
|
(1 << TCG_REG_G7) |
|
|
(1 << TCG_REG_O0) |
|
|
(1 << TCG_REG_O1) |
|
|
(1 << TCG_REG_O2) |
|
|
(1 << TCG_REG_O3) |
|
|
(1 << TCG_REG_O4) |
|
|
(1 << TCG_REG_O5) |
|
|
(1 << TCG_REG_O7));
|
|
|
|
tcg_regset_clear(s->reserved_regs);
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_G0); /* zero */
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_G6); /* reserved for os */
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_G7); /* thread pointer */
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_I6); /* frame pointer */
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_I7); /* return address */
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_O6); /* stack pointer */
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_T1); /* for internal use */
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_T2); /* for internal use */
|
|
|
|
tcg_add_target_add_op_defs(sparc_op_defs);
|
|
}
|
|
|
|
#if TCG_TARGET_REG_BITS == 64
|
|
# define ELF_HOST_MACHINE EM_SPARCV9
|
|
#else
|
|
# define ELF_HOST_MACHINE EM_SPARC32PLUS
|
|
# define ELF_HOST_FLAGS EF_SPARC_32PLUS
|
|
#endif
|
|
|
|
typedef struct {
|
|
DebugFrameCIE cie;
|
|
DebugFrameFDEHeader fde;
|
|
uint8_t fde_def_cfa[TCG_TARGET_REG_BITS == 64 ? 4 : 2];
|
|
uint8_t fde_win_save;
|
|
uint8_t fde_ret_save[3];
|
|
} DebugFrame;
|
|
|
|
static DebugFrame debug_frame = {
|
|
.cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */
|
|
.cie.id = -1,
|
|
.cie.version = 1,
|
|
.cie.code_align = 1,
|
|
.cie.data_align = -sizeof(void *) & 0x7f,
|
|
.cie.return_column = 15, /* o7 */
|
|
|
|
/* Total FDE size does not include the "len" member. */
|
|
.fde.len = sizeof(DebugFrame) - offsetof(DebugFrame, fde.cie_offset),
|
|
|
|
.fde_def_cfa = {
|
|
#if TCG_TARGET_REG_BITS == 64
|
|
12, 30, /* DW_CFA_def_cfa i6, 2047 */
|
|
(2047 & 0x7f) | 0x80, (2047 >> 7)
|
|
#else
|
|
13, 30 /* DW_CFA_def_cfa_register i6 */
|
|
#endif
|
|
},
|
|
.fde_win_save = 0x2d, /* DW_CFA_GNU_window_save */
|
|
.fde_ret_save = { 9, 15, 31 }, /* DW_CFA_register o7, i7 */
|
|
};
|
|
|
|
void tcg_register_jit(void *buf, size_t buf_size)
|
|
{
|
|
debug_frame.fde.func_start = (uintptr_t)buf;
|
|
debug_frame.fde.func_len = buf_size;
|
|
|
|
tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame));
|
|
}
|
|
|
|
void tb_set_jmp_target1(uintptr_t jmp_addr, uintptr_t addr)
|
|
{
|
|
uint32_t *ptr = (uint32_t *)jmp_addr;
|
|
uintptr_t disp = addr - jmp_addr;
|
|
|
|
/* We can reach the entire address space for 32-bit. For 64-bit
|
|
the code_gen_buffer can't be larger than 2GB. */
|
|
assert(disp == (int32_t)disp);
|
|
|
|
*ptr = CALL | (uint32_t)disp >> 2;
|
|
flush_icache_range(jmp_addr, jmp_addr + 4);
|
|
}
|