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/*
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* Stack-less Just-In-Time compiler
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*
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* Copyright 2009-2010 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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SLJIT_CONST char* sljit_get_platform_name()
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{
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#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
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return "mips-32";
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#else
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#error "mips-64 is not yet supported"
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#endif
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}
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/* Length of an instruction word
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Both for mips-32 and mips-64 */
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typedef sljit_ui sljit_ins;
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#define TMP_REG1 (SLJIT_NO_REGISTERS + 1)
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#define TMP_REG2 (SLJIT_NO_REGISTERS + 2)
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#define TMP_REG3 (SLJIT_NO_REGISTERS + 3)
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#define REAL_STACK_PTR (SLJIT_NO_REGISTERS + 4)
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/* TMP_EREG1 is used mainly for literal encoding on 64 bit. */
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#define TMP_EREG1 24
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#define TMP_EREG2 25
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/* Flags are keept in volatile registers. */
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#define EQUAL_FLAG 7
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/* And carry flag as well. */
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#define ULESS_FLAG 11
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#define UGREATER_FLAG 12
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#define LESS_FLAG 13
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#define GREATER_FLAG 14
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#define OVERFLOW_FLAG 15
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#define UNORD_BIT 1
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#define EQUAL_BIT 2
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#define LESS_BIT 3
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#define GREATER_BIT 4
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#define TMP_FREG1 (SLJIT_FLOAT_REG4 + 1)
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#define TMP_FREG2 (SLJIT_FLOAT_REG4 + 2)
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/* --------------------------------------------------------------------- */
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/* Instrucion forms */
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/* --------------------------------------------------------------------- */
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#define S(s) (reg_map[s] << 21)
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#define T(t) (reg_map[t] << 16)
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#define D(d) (reg_map[d] << 11)
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/* Absolute registers. */
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#define SA(s) ((s) << 21)
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#define TA(t) ((t) << 16)
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#define DA(d) ((d) << 11)
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#define FT(t) ((t) << (16 + 1))
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#define FS(s) ((s) << (11 + 1))
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#define FD(d) ((d) << (6 + 1))
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#define IMM(imm) ((imm) & 0xffff)
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#define SH_IMM(imm) ((imm & 0x1f) << 6)
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#define DR(dr) (reg_map[dr])
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#define HI(opcode) ((opcode) << 26)
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#define LO(opcode) (opcode)
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#define FMT_D (17 << 21)
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#define ABS_D (HI(17) | FMT_D | LO(5))
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#define ADD_D (HI(17) | FMT_D | LO(0))
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#define ADDU (HI(0) | LO(33))
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#define ADDIU (HI(9))
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#define AND (HI(0) | LO(36))
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#define ANDI (HI(12))
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#define B (HI(4))
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#define BAL (HI(1) | (17 << 16))
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#define BC1F (HI(17) | (8 << 21))
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#define BC1T (HI(17) | (8 << 21) | (1 << 16))
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#define BEQ (HI(4))
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#define BGEZ (HI(1) | (1 << 16))
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#define BGTZ (HI(7))
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#define BLEZ (HI(6))
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#define BLTZ (HI(1) | (0 << 16))
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#define BNE (HI(5))
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#define BREAK (HI(0) | LO(13))
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#define C_UN_D (HI(17) | FMT_D | LO(49))
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#define C_UEQ_D (HI(17) | FMT_D | LO(51))
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#define C_ULT_D (HI(17) | FMT_D | LO(53))
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#define CLZ (HI(28) | LO(32))
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#define DIV_D (HI(17) | FMT_D | LO(3))
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#define EXT (HI(31) | LO(0))
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#define J (HI(2))
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#define JAL (HI(3))
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#define JALR (HI(0) | LO(9))
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#define JR (HI(0) | LO(8))
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#define LD (HI(55))
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#define LDC1 (HI(53))
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#define LUI (HI(15))
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#define LW (HI(35))
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#define NEG_D (HI(17) | FMT_D | LO(7))
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#define MFHI (HI(0) | LO(16))
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#define MFLO (HI(0) | LO(18))
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#define MOV_D (HI(17) | FMT_D | LO(6))
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#define CFC1 (HI(17) | (2 << 21))
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#define MOVN (HI(0) | LO(11))
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#define MOVZ (HI(0) | LO(10))
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#define MUL (HI(28) | LO(2))
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#define MUL_D (HI(17) | FMT_D | LO(2))
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#define MULT (HI(0) | LO(24))
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#define NOP (HI(0) | LO(0))
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#define NOR (HI(0) | LO(39))
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#define OR (HI(0) | LO(37))
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#define ORI (HI(13))
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#define SD (HI(63))
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#define SDC1 (HI(61))
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#define SEB (HI(31) | (16 << 6) | LO(32))
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#define SEH (HI(31) | (24 << 6) | LO(32))
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#define SLT (HI(0) | LO(42))
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#define SLTI (HI(10))
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#define SLTIU (HI(11))
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#define SLTU (HI(0) | LO(43))
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#define SLL (HI(0) | LO(0))
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#define SLLV (HI(0) | LO(4))
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#define SRL (HI(0) | LO(2))
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#define SRLV (HI(0) | LO(6))
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#define SRA (HI(0) | LO(3))
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#define SRAV (HI(0) | LO(7))
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#define SUB_D (HI(17) | FMT_D | LO(1))
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#define SUBU (HI(0) | LO(35))
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#define SW (HI(43))
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#define XOR (HI(0) | LO(38))
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#define XORI (HI(14))
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#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
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#define ADDU_W ADDU
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#define ADDIU_W ADDIU
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#define EXT_W EXT
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#define SLL_W SLL
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#define SUBU_W SUBU
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#else
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#define ADDU_W DADDU
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#define ADDIU_W DADDIU
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#define EXT_W DEXT
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#define SLL_W DSLL
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#define SUBU_W DSUBU
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#endif
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#define SIMM_MAX (0x7fff)
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#define SIMM_MIN (-0x8000)
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#define UIMM_MAX (0xffff)
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static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 6] = {
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0, 2, 5, 6, 3, 4, 17, 18, 19, 20, 21, 16, 8, 9, 10, 29
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};
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/* dest_reg is the absolute name of the register
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Useful for reordering instructions in the delay slot. */
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static int push_inst(struct sljit_compiler *compiler, sljit_ins ins, int delay_slot)
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{
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sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
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FAIL_IF(!ptr);
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*ptr = ins;
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compiler->size++;
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compiler->delay_slot = delay_slot;
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return SLJIT_SUCCESS;
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}
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static SLJIT_INLINE sljit_ins invert_branch(int flags)
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{
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return (flags & IS_BIT26_COND) ? (1 << 26) : (1 << 16);
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}
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static SLJIT_INLINE sljit_ins* optimize_jump(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code)
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{
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sljit_w diff;
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sljit_uw target_addr;
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sljit_ins *inst;
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sljit_ins saved_inst;
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if (jump->flags & SLJIT_REWRITABLE_JUMP)
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return code_ptr;
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if (jump->flags & JUMP_ADDR)
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target_addr = jump->u.target;
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else {
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SLJIT_ASSERT(jump->flags & JUMP_LABEL);
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target_addr = (sljit_uw)(code + jump->u.label->size);
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}
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inst = (sljit_ins*)jump->addr;
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if (jump->flags & IS_COND)
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inst--;
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/* B instructions. */
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if (jump->flags & IS_MOVABLE) {
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diff = ((sljit_w)target_addr - (sljit_w)(inst)) >> 2;
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if (diff <= SIMM_MAX && diff >= SIMM_MIN) {
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jump->flags |= PATCH_B;
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if (!(jump->flags & IS_COND)) {
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inst[0] = inst[-1];
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inst[-1] = (jump->flags & IS_JAL) ? BAL : B;
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jump->addr -= sizeof(sljit_ins);
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return inst;
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}
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saved_inst = inst[0];
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inst[0] = inst[-1];
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inst[-1] = saved_inst ^ invert_branch(jump->flags);
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jump->addr -= 2 * sizeof(sljit_ins);
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return inst;
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}
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}
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diff = ((sljit_w)target_addr - (sljit_w)(inst + 1)) >> 2;
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if (diff <= SIMM_MAX && diff >= SIMM_MIN) {
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jump->flags |= PATCH_B;
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if (!(jump->flags & IS_COND)) {
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inst[0] = (jump->flags & IS_JAL) ? BAL : B;
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inst[1] = NOP;
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return inst + 1;
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}
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inst[0] = inst[0] ^ invert_branch(jump->flags);
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inst[1] = NOP;
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jump->addr -= sizeof(sljit_ins);
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return inst + 1;
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}
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if (jump->flags & IS_COND) {
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if ((target_addr & ~0xfffffff) == ((jump->addr + 3 * sizeof(sljit_ins)) & ~0xfffffff)) {
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jump->flags |= PATCH_J;
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inst[0] = (inst[0] & 0xffff0000) | 3;
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inst[1] = NOP;
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inst[2] = J;
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inst[3] = NOP;
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jump->addr += sizeof(sljit_ins);
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return inst + 3;
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}
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return code_ptr;
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}
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/* J instuctions. */
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if (jump->flags & IS_MOVABLE) {
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if ((target_addr & ~0xfffffff) == (jump->addr & ~0xfffffff)) {
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jump->flags |= PATCH_J;
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inst[0] = inst[-1];
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inst[-1] = (jump->flags & IS_JAL) ? JAL : J;
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jump->addr -= sizeof(sljit_ins);
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return inst;
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}
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}
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if ((target_addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)) {
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jump->flags |= PATCH_J;
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inst[0] = (jump->flags & IS_JAL) ? JAL : J;
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inst[1] = NOP;
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return inst + 1;
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}
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return code_ptr;
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}
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#ifdef __GNUC__
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static __attribute__ ((noinline)) void sljit_cache_flush(void* code, void* code_ptr)
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{
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SLJIT_CACHE_FLUSH(code, code_ptr);
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}
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#endif
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void* sljit_generate_code(struct sljit_compiler *compiler)
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{
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| 290 |
struct sljit_memory_fragment *buf;
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sljit_ins *code;
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sljit_ins *code_ptr;
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sljit_ins *buf_ptr;
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sljit_ins *buf_end;
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sljit_uw word_count;
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sljit_uw addr;
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struct sljit_label *label;
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struct sljit_jump *jump;
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struct sljit_const *const_;
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CHECK_ERROR_PTR();
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check_sljit_generate_code(compiler);
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reverse_buf(compiler);
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code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins));
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PTR_FAIL_WITH_EXEC_IF(code);
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buf = compiler->buf;
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| 309 |
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code_ptr = code;
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| 311 |
word_count = 0;
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label = compiler->labels;
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jump = compiler->jumps;
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const_ = compiler->consts;
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do {
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buf_ptr = (sljit_ins*)buf->memory;
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buf_end = buf_ptr + (buf->used_size >> 2);
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do {
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*code_ptr = *buf_ptr++;
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| 320 |
SLJIT_ASSERT(!label || label->size >= word_count);
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SLJIT_ASSERT(!jump || jump->addr >= word_count);
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| 322 |
SLJIT_ASSERT(!const_ || const_->addr >= word_count);
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| 323 |
/* These structures are ordered by their address. */
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| 324 |
if (label && label->size == word_count) {
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/* Just recording the address. */
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| 326 |
label->addr = (sljit_uw)code_ptr;
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label->size = code_ptr - code;
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| 328 |
label = label->next;
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| 329 |
}
|
| 330 |
if (jump && jump->addr == word_count) {
|
| 331 |
#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
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| 332 |
jump->addr = (sljit_uw)(code_ptr - 3);
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| 333 |
#else
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| 334 |
jump->addr = (sljit_uw)(code_ptr - 6);
|
| 335 |
#endif
|
| 336 |
code_ptr = optimize_jump(jump, code_ptr, code);
|
| 337 |
jump = jump->next;
|
| 338 |
}
|
| 339 |
if (const_ && const_->addr == word_count) {
|
| 340 |
/* Just recording the address. */
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| 341 |
const_->addr = (sljit_uw)code_ptr;
|
| 342 |
const_ = const_->next;
|
| 343 |
}
|
| 344 |
code_ptr ++;
|
| 345 |
word_count ++;
|
| 346 |
} while (buf_ptr < buf_end);
|
| 347 |
|
| 348 |
buf = buf->next;
|
| 349 |
} while (buf);
|
| 350 |
|
| 351 |
if (label && label->size == word_count) {
|
| 352 |
label->addr = (sljit_uw)code_ptr;
|
| 353 |
label->size = code_ptr - code;
|
| 354 |
label = label->next;
|
| 355 |
}
|
| 356 |
|
| 357 |
SLJIT_ASSERT(!label);
|
| 358 |
SLJIT_ASSERT(!jump);
|
| 359 |
SLJIT_ASSERT(!const_);
|
| 360 |
SLJIT_ASSERT(code_ptr - code <= (int)compiler->size);
|
| 361 |
|
| 362 |
jump = compiler->jumps;
|
| 363 |
while (jump) {
|
| 364 |
do {
|
| 365 |
addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
|
| 366 |
buf_ptr = (sljit_ins*)jump->addr;
|
| 367 |
|
| 368 |
if (jump->flags & PATCH_B) {
|
| 369 |
addr = (sljit_w)(addr - (jump->addr + sizeof(sljit_ins))) >> 2;
|
| 370 |
SLJIT_ASSERT((sljit_w)addr <= SIMM_MAX && (sljit_w)addr >= SIMM_MIN);
|
| 371 |
buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | (addr & 0xffff);
|
| 372 |
break;
|
| 373 |
}
|
| 374 |
if (jump->flags & PATCH_J) {
|
| 375 |
SLJIT_ASSERT((addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff));
|
| 376 |
buf_ptr[0] |= (addr >> 2) & 0x03ffffff;
|
| 377 |
break;
|
| 378 |
}
|
| 379 |
|
| 380 |
/* Set the fields of immediate loads. */
|
| 381 |
#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
|
| 382 |
buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff);
|
| 383 |
buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff);
|
| 384 |
#else
|
| 385 |
buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff);
|
| 386 |
buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff);
|
| 387 |
buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff);
|
| 388 |
buf_ptr[4] = (buf_ptr[4] & 0xffff0000) | (addr & 0xffff);
|
| 389 |
#endif
|
| 390 |
} while (0);
|
| 391 |
jump = jump->next;
|
| 392 |
}
|
| 393 |
|
| 394 |
compiler->error = SLJIT_ERR_COMPILED;
|
| 395 |
#ifndef __GNUC__
|
| 396 |
SLJIT_CACHE_FLUSH(code, code_ptr);
|
| 397 |
#else
|
| 398 |
/* GCC workaround for invalid code generation with -O2. */
|
| 399 |
sljit_cache_flush(code, code_ptr);
|
| 400 |
#endif
|
| 401 |
return code;
|
| 402 |
}
|
| 403 |
|
| 404 |
/* Creates an index in data_transfer_insts array. */
|
| 405 |
#define WORD_DATA 0x00
|
| 406 |
#define BYTE_DATA 0x01
|
| 407 |
#define HALF_DATA 0x02
|
| 408 |
#define INT_DATA 0x03
|
| 409 |
#define SIGNED_DATA 0x04
|
| 410 |
#define LOAD_DATA 0x08
|
| 411 |
|
| 412 |
#define MEM_MASK 0x0f
|
| 413 |
|
| 414 |
#define WRITE_BACK 0x00010
|
| 415 |
#define ARG_TEST 0x00020
|
| 416 |
#define CUMULATIVE_OP 0x00040
|
| 417 |
#define LOGICAL_OP 0x00080
|
| 418 |
#define IMM_OP 0x00100
|
| 419 |
#define SRC2_IMM 0x00200
|
| 420 |
|
| 421 |
#define UNUSED_DEST 0x00400
|
| 422 |
#define REG_DEST 0x00800
|
| 423 |
#define REG1_SOURCE 0x01000
|
| 424 |
#define REG2_SOURCE 0x02000
|
| 425 |
#define SLOW_SRC1 0x04000
|
| 426 |
#define SLOW_SRC2 0x08000
|
| 427 |
#define SLOW_DEST 0x10000
|
| 428 |
|
| 429 |
/* Only these flags are set. UNUSED_DEST is not set when no flags should be set. */
|
| 430 |
#define CHECK_FLAGS(list) \
|
| 431 |
(!(flags & UNUSED_DEST) || (op & GET_FLAGS(~(list))))
|
| 432 |
|
| 433 |
#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
|
| 434 |
#include "sljitNativeMIPS_32.c"
|
| 435 |
#else
|
| 436 |
#include "sljitNativeMIPS_64.c"
|
| 437 |
#endif
|
| 438 |
|
| 439 |
#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
|
| 440 |
#define STACK_STORE SW
|
| 441 |
#define STACK_LOAD LW
|
| 442 |
#else
|
| 443 |
#define STACK_STORE SD
|
| 444 |
#define STACK_LOAD LD
|
| 445 |
#endif
|
| 446 |
|
| 447 |
static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
|
| 448 |
int dst, sljit_w dstw,
|
| 449 |
int src1, sljit_w src1w,
|
| 450 |
int src2, sljit_w src2w);
|
| 451 |
|
| 452 |
int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size)
|
| 453 |
{
|
| 454 |
sljit_ins base;
|
| 455 |
|
| 456 |
CHECK_ERROR();
|
| 457 |
check_sljit_emit_enter(compiler, args, temporaries, generals, local_size);
|
| 458 |
|
| 459 |
compiler->temporaries = temporaries;
|
| 460 |
compiler->generals = generals;
|
| 461 |
|
| 462 |
compiler->has_locals = local_size > 0;
|
| 463 |
local_size += (generals + 2 + 4) * sizeof(sljit_w);
|
| 464 |
local_size = (local_size + 15) & ~0xf;
|
| 465 |
compiler->local_size = local_size;
|
| 466 |
|
| 467 |
if (local_size <= SIMM_MAX) {
|
| 468 |
/* Frequent case. */
|
| 469 |
FAIL_IF(push_inst(compiler, ADDIU_W | S(REAL_STACK_PTR) | T(REAL_STACK_PTR) | IMM(-local_size), DR(REAL_STACK_PTR)));
|
| 470 |
base = S(REAL_STACK_PTR);
|
| 471 |
}
|
| 472 |
else {
|
| 473 |
FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size));
|
| 474 |
FAIL_IF(push_inst(compiler, ADDU_W | S(REAL_STACK_PTR) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
|
| 475 |
FAIL_IF(push_inst(compiler, SUBU_W | S(REAL_STACK_PTR) | T(TMP_REG1) | D(REAL_STACK_PTR), DR(REAL_STACK_PTR)));
|
| 476 |
base = S(TMP_REG2);
|
| 477 |
local_size = 0;
|
| 478 |
}
|
| 479 |
|
| 480 |
FAIL_IF(push_inst(compiler, STACK_STORE | base | TA(31) | IMM(local_size - 1 * (int)sizeof(sljit_w)), MOVABLE_INS));
|
| 481 |
if (compiler->has_locals)
|
| 482 |
FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_LOCALS_REG) | IMM(local_size - 2 * (int)sizeof(sljit_w)), MOVABLE_INS));
|
| 483 |
if (generals >= 1)
|
| 484 |
FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_REG1) | IMM(local_size - 3 * (int)sizeof(sljit_w)), MOVABLE_INS));
|
| 485 |
if (generals >= 2)
|
| 486 |
FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_REG2) | IMM(local_size - 4 * (int)sizeof(sljit_w)), MOVABLE_INS));
|
| 487 |
if (generals >= 3)
|
| 488 |
FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_REG3) | IMM(local_size - 5 * (int)sizeof(sljit_w)), MOVABLE_INS));
|
| 489 |
if (generals >= 4)
|
| 490 |
FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_EREG1) | IMM(local_size - 6 * (int)sizeof(sljit_w)), MOVABLE_INS));
|
| 491 |
if (generals >= 5)
|
| 492 |
FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_EREG2) | IMM(local_size - 7 * (int)sizeof(sljit_w)), MOVABLE_INS));
|
| 493 |
|
| 494 |
if (compiler->has_locals)
|
| 495 |
FAIL_IF(push_inst(compiler, ADDIU_W | S(REAL_STACK_PTR) | T(SLJIT_LOCALS_REG) | IMM(4 * sizeof(sljit_w)), DR(SLJIT_LOCALS_REG)));
|
| 496 |
|
| 497 |
if (args >= 1)
|
| 498 |
FAIL_IF(push_inst(compiler, ADDU_W | SA(4) | TA(0) | D(SLJIT_GENERAL_REG1), DR(SLJIT_GENERAL_REG1)));
|
| 499 |
if (args >= 2)
|
| 500 |
FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_GENERAL_REG2), DR(SLJIT_GENERAL_REG2)));
|
| 501 |
if (args >= 3)
|
| 502 |
FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_GENERAL_REG3), DR(SLJIT_GENERAL_REG3)));
|
| 503 |
|
| 504 |
return SLJIT_SUCCESS;
|
| 505 |
}
|
| 506 |
|
| 507 |
void sljit_fake_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size)
|
| 508 |
{
|
| 509 |
CHECK_ERROR_VOID();
|
| 510 |
check_sljit_fake_enter(compiler, args, temporaries, generals, local_size);
|
| 511 |
|
| 512 |
compiler->temporaries = temporaries;
|
| 513 |
compiler->generals = generals;
|
| 514 |
|
| 515 |
compiler->has_locals = local_size > 0;
|
| 516 |
local_size += (generals + 2 + 4) * sizeof(sljit_w);
|
| 517 |
compiler->local_size = (local_size + 15) & ~0xf;
|
| 518 |
}
|
| 519 |
|
| 520 |
int sljit_emit_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
|
| 521 |
{
|
| 522 |
int local_size;
|
| 523 |
sljit_ins base;
|
| 524 |
|
| 525 |
CHECK_ERROR();
|
| 526 |
check_sljit_emit_return(compiler, src, srcw);
|
| 527 |
|
| 528 |
local_size = compiler->local_size;
|
| 529 |
|
| 530 |
if (src != SLJIT_UNUSED && src != SLJIT_RETURN_REG)
|
| 531 |
FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, SLJIT_RETURN_REG, 0, TMP_REG1, 0, src, srcw));
|
| 532 |
|
| 533 |
if (local_size <= SIMM_MAX)
|
| 534 |
base = S(REAL_STACK_PTR);
|
| 535 |
else {
|
| 536 |
FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size));
|
| 537 |
FAIL_IF(push_inst(compiler, ADDU_W | S(REAL_STACK_PTR) | T(TMP_REG1) | D(TMP_REG1), DR(TMP_REG1)));
|
| 538 |
base = S(TMP_REG1);
|
| 539 |
local_size = 0;
|
| 540 |
}
|
| 541 |
|
| 542 |
FAIL_IF(push_inst(compiler, STACK_LOAD | base | TA(31) | IMM(local_size - 1 * (int)sizeof(sljit_w)), 31));
|
| 543 |
if (compiler->generals >= 5)
|
| 544 |
FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_EREG2) | IMM(local_size - 7 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_EREG2)));
|
| 545 |
if (compiler->generals >= 4)
|
| 546 |
FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_EREG1) | IMM(local_size - 6 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_EREG1)));
|
| 547 |
if (compiler->generals >= 3)
|
| 548 |
FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_REG3) | IMM(local_size - 5 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_REG3)));
|
| 549 |
if (compiler->generals >= 2)
|
| 550 |
FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_REG2) | IMM(local_size - 4 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_REG2)));
|
| 551 |
if (compiler->generals >= 1)
|
| 552 |
FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_REG1) | IMM(local_size - 3 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_REG1)));
|
| 553 |
if (compiler->has_locals)
|
| 554 |
FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_LOCALS_REG) | IMM(local_size - 2 * (int)sizeof(sljit_w)), DR(SLJIT_LOCALS_REG)));
|
| 555 |
|
| 556 |
FAIL_IF(push_inst(compiler, JR | SA(31), UNMOVABLE_INS));
|
| 557 |
if (compiler->local_size <= SIMM_MAX)
|
| 558 |
return push_inst(compiler, ADDIU_W | S(REAL_STACK_PTR) | T(REAL_STACK_PTR) | IMM(compiler->local_size), UNMOVABLE_INS);
|
| 559 |
else
|
| 560 |
return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(REAL_STACK_PTR), UNMOVABLE_INS);
|
| 561 |
}
|
| 562 |
|
| 563 |
#undef STACK_STORE
|
| 564 |
#undef STACK_LOAD
|
| 565 |
|
| 566 |
/* --------------------------------------------------------------------- */
|
| 567 |
/* Operators */
|
| 568 |
/* --------------------------------------------------------------------- */
|
| 569 |
|
| 570 |
#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
|
| 571 |
#define ARCH_DEPEND(a, b) a
|
| 572 |
#else
|
| 573 |
#define ARCH_DEPEND(a, b) b
|
| 574 |
#endif
|
| 575 |
|
| 576 |
static SLJIT_CONST sljit_ins data_transfer_insts[16] = {
|
| 577 |
/* s u w */ ARCH_DEPEND(HI(43) /* sw */, HI(63) /* sd */),
|
| 578 |
/* s u b */ HI(40) /* sb */,
|
| 579 |
/* s u h */ HI(41) /* sh*/,
|
| 580 |
/* s u i */ HI(43) /* sw */,
|
| 581 |
|
| 582 |
/* s s w */ ARCH_DEPEND(HI(43) /* sw */, HI(63) /* sd */),
|
| 583 |
/* s s b */ HI(40) /* sb */,
|
| 584 |
/* s s h */ HI(41) /* sh*/,
|
| 585 |
/* s s i */ HI(43) /* sw */,
|
| 586 |
|
| 587 |
/* l u w */ ARCH_DEPEND(HI(35) /* lw */, HI(55) /* ld */),
|
| 588 |
/* l u b */ HI(36) /* lbu */,
|
| 589 |
/* l u h */ HI(37) /* lhu */,
|
| 590 |
/* l u i */ ARCH_DEPEND(HI(35) /* lw */, HI(39) /* lwu */),
|
| 591 |
|
| 592 |
/* l s w */ ARCH_DEPEND(HI(35) /* lw */, HI(55) /* ld */),
|
| 593 |
/* l s b */ HI(32) /* lb */,
|
| 594 |
/* l s h */ HI(33) /* lh */,
|
| 595 |
/* l s i */ HI(35) /* lw */,
|
| 596 |
};
|
| 597 |
|
| 598 |
/* reg_ar is an absoulute register! */
|
| 599 |
|
| 600 |
/* Can perform an operation using at most 1 instruction. */
|
| 601 |
static int getput_arg_fast(struct sljit_compiler *compiler, int flags, int reg_ar, int arg, sljit_w argw)
|
| 602 |
{
|
| 603 |
SLJIT_ASSERT(arg & SLJIT_MEM);
|
| 604 |
|
| 605 |
if (!(flags & WRITE_BACK) && !(arg & 0xf0) && argw <= SIMM_MAX && argw >= SIMM_MIN) {
|
| 606 |
/* Works for both absoulte and relative addresses. */
|
| 607 |
if (SLJIT_UNLIKELY(flags & ARG_TEST))
|
| 608 |
return 1;
|
| 609 |
FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(arg & 0xf) | TA(reg_ar) | IMM(argw), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS));
|
| 610 |
return -1;
|
| 611 |
}
|
| 612 |
return (flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
|
| 613 |
}
|
| 614 |
|
| 615 |
/* See getput_arg below.
|
| 616 |
Note: can_cache is called only for binary operators. Those
|
| 617 |
operators always uses word arguments without write back. */
|
| 618 |
static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw)
|
| 619 |
{
|
| 620 |
if (!(next_arg & SLJIT_MEM))
|
| 621 |
return 0;
|
| 622 |
|
| 623 |
/* Simple operation except for updates. */
|
| 624 |
if (arg & 0xf0) {
|
| 625 |
argw &= 0x3;
|
| 626 |
next_argw &= 0x3;
|
| 627 |
if (argw && argw == next_argw && (arg == next_arg || (arg & 0xf0) == (next_arg & 0xf0)))
|
| 628 |
return 1;
|
| 629 |
return 0;
|
| 630 |
}
|
| 631 |
|
| 632 |
if (arg == next_arg) {
|
| 633 |
if (((sljit_uw)(next_argw - argw) <= SIMM_MAX && (sljit_uw)(next_argw - argw) >= SIMM_MIN))
|
| 634 |
return 1;
|
| 635 |
return 0;
|
| 636 |
}
|
| 637 |
|
| 638 |
return 0;
|
| 639 |
}
|
| 640 |
|
| 641 |
/* Emit the necessary instructions. See can_cache above. */
|
| 642 |
static int getput_arg(struct sljit_compiler *compiler, int flags, int reg_ar, int arg, sljit_w argw, int next_arg, sljit_w next_argw)
|
| 643 |
{
|
| 644 |
int tmp_ar;
|
| 645 |
int base;
|
| 646 |
|
| 647 |
SLJIT_ASSERT(arg & SLJIT_MEM);
|
| 648 |
if (!(next_arg & SLJIT_MEM)) {
|
| 649 |
next_arg = 0;
|
| 650 |
next_argw = 0;
|
| 651 |
}
|
| 652 |
|
| 653 |
tmp_ar = (flags & LOAD_DATA) ? reg_ar : DR(TMP_REG3);
|
| 654 |
base = arg & 0xf;
|
| 655 |
|
| 656 |
if (SLJIT_UNLIKELY(arg & 0xf0)) {
|
| 657 |
argw &= 0x3;
|
| 658 |
if ((flags & WRITE_BACK) && reg_ar == DR(base)) {
|
| 659 |
SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar);
|
| 660 |
FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1)));
|
| 661 |
reg_ar = DR(TMP_REG1);
|
| 662 |
}
|
| 663 |
|
| 664 |
/* Using the cache. */
|
| 665 |
if (argw == compiler->cache_argw) {
|
| 666 |
if (!(flags & WRITE_BACK)) {
|
| 667 |
if (arg == compiler->cache_arg)
|
| 668 |
return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
|
| 669 |
if ((SLJIT_MEM | (arg & 0xf0)) == compiler->cache_arg) {
|
| 670 |
if (arg == next_arg && argw == (next_argw & 0x3)) {
|
| 671 |
compiler->cache_arg = arg;
|
| 672 |
compiler->cache_argw = argw;
|
| 673 |
FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(TMP_REG3), DR(TMP_REG3)));
|
| 674 |
return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
|
| 675 |
}
|
| 676 |
FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | DA(tmp_ar), tmp_ar));
|
| 677 |
return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
|
| 678 |
}
|
| 679 |
}
|
| 680 |
else {
|
| 681 |
if ((SLJIT_MEM | (arg & 0xf0)) == compiler->cache_arg) {
|
| 682 |
FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base)));
|
| 683 |
return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
|
| 684 |
}
|
| 685 |
}
|
| 686 |
}
|
| 687 |
|
| 688 |
if (SLJIT_UNLIKELY(argw)) {
|
| 689 |
compiler->cache_arg = SLJIT_MEM | (arg & 0xf0);
|
| 690 |
compiler->cache_argw = argw;
|
| 691 |
FAIL_IF(push_inst(compiler, SLL_W | T((arg >> 4) & 0xf) | D(TMP_REG3) | SH_IMM(argw), DR(TMP_REG3)));
|
| 692 |
}
|
| 693 |
|
| 694 |
if (!(flags & WRITE_BACK)) {
|
| 695 |
if (arg == next_arg && argw == (next_argw & 0x3)) {
|
| 696 |
compiler->cache_arg = arg;
|
| 697 |
compiler->cache_argw = argw;
|
| 698 |
FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | D(TMP_REG3), DR(TMP_REG3)));
|
| 699 |
tmp_ar = DR(TMP_REG3);
|
| 700 |
}
|
| 701 |
else
|
| 702 |
FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | DA(tmp_ar), tmp_ar));
|
| 703 |
return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
|
| 704 |
}
|
| 705 |
FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | D(base), DR(base)));
|
| 706 |
return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
|
| 707 |
}
|
| 708 |
|
| 709 |
if (SLJIT_UNLIKELY(flags & WRITE_BACK) && base) {
|
| 710 |
/* Update only applies if a base register exists. */
|
| 711 |
if (reg_ar == DR(base)) {
|
| 712 |
SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar);
|
| 713 |
if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
|
| 714 |
FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar) | IMM(argw), MOVABLE_INS));
|
| 715 |
if (argw)
|
| 716 |
return push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base));
|
| 717 |
return SLJIT_SUCCESS;
|
| 718 |
}
|
| 719 |
FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1)));
|
| 720 |
reg_ar = DR(TMP_REG1);
|
| 721 |
}
|
| 722 |
|
| 723 |
if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
|
| 724 |
if (argw)
|
| 725 |
FAIL_IF(push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base)));
|
| 726 |
}
|
| 727 |
else {
|
| 728 |
if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
|
| 729 |
if (argw != compiler->cache_argw) {
|
| 730 |
FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
|
| 731 |
compiler->cache_argw = argw;
|
| 732 |
}
|
| 733 |
FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base)));
|
| 734 |
}
|
| 735 |
else {
|
| 736 |
compiler->cache_arg = SLJIT_MEM;
|
| 737 |
compiler->cache_argw = argw;
|
| 738 |
FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw));
|
| 739 |
FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base)));
|
| 740 |
}
|
| 741 |
}
|
| 742 |
return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
|
| 743 |
}
|
| 744 |
|
| 745 |
if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
|
| 746 |
if (argw != compiler->cache_argw) {
|
| 747 |
FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
|
| 748 |
compiler->cache_argw = argw;
|
| 749 |
}
|
| 750 |
return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
|
| 751 |
}
|
| 752 |
|
| 753 |
if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
|
| 754 |
if (argw != compiler->cache_argw)
|
| 755 |
FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
|
| 756 |
}
|
| 757 |
else {
|
| 758 |
compiler->cache_arg = SLJIT_MEM;
|
| 759 |
FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw));
|
| 760 |
}
|
| 761 |
compiler->cache_argw = argw;
|
| 762 |
|
| 763 |
if (!base)
|
| 764 |
return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
|
| 765 |
|
| 766 |
if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) {
|
| 767 |
compiler->cache_arg = arg;
|
| 768 |
FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | D(TMP_REG3), DR(TMP_REG3)));
|
| 769 |
return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
|
| 770 |
}
|
| 771 |
|
| 772 |
FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | DA(tmp_ar), tmp_ar));
|
| 773 |
return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
|
| 774 |
}
|
| 775 |
|
| 776 |
static SLJIT_INLINE int emit_op_mem(struct sljit_compiler *compiler, int flags, int reg_ar, int arg, sljit_w argw)
|
| 777 |
{
|
| 778 |
if (getput_arg_fast(compiler, flags, reg_ar, arg, argw))
|
| 779 |
return compiler->error;
|
| 780 |
compiler->cache_arg = 0;
|
| 781 |
compiler->cache_argw = 0;
|
| 782 |
return getput_arg(compiler, flags, reg_ar, arg, argw, 0, 0);
|
| 783 |
}
|
| 784 |
|
| 785 |
static int emit_op(struct sljit_compiler *compiler, int op, int flags,
|
| 786 |
int dst, sljit_w dstw,
|
| 787 |
int src1, sljit_w src1w,
|
| 788 |
int src2, sljit_w src2w)
|
| 789 |
{
|
| 790 |
/* arg1 goes to TMP_REG1 or src reg
|
| 791 |
arg2 goes to TMP_REG2, imm or src reg
|
| 792 |
TMP_REG3 can be used for caching
|
| 793 |
result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
|
| 794 |
int dst_r = TMP_REG2;
|
| 795 |
int src1_r;
|
| 796 |
sljit_w src2_r = 0;
|
| 797 |
int sugg_src2_r = TMP_REG2;
|
| 798 |
|
| 799 |
compiler->cache_arg = 0;
|
| 800 |
compiler->cache_argw = 0;
|
| 801 |
|
| 802 |
if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REG3) {
|
| 803 |
dst_r = dst;
|
| 804 |
flags |= REG_DEST;
|
| 805 |
if (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI)
|
| 806 |
sugg_src2_r = dst_r;
|
| 807 |
}
|
| 808 |
else if (dst == SLJIT_UNUSED) {
|
| 809 |
if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
|
| 810 |
return SLJIT_SUCCESS;
|
| 811 |
if (GET_FLAGS(op))
|
| 812 |
flags |= UNUSED_DEST;
|
| 813 |
}
|
| 814 |
else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, DR(TMP_REG1), dst, dstw))
|
| 815 |
flags |= SLOW_DEST;
|
| 816 |
|
| 817 |
if (flags & IMM_OP) {
|
| 818 |
if ((src2 & SLJIT_IMM) && src2w) {
|
| 819 |
if ((!(flags & LOGICAL_OP) && (src2w <= SIMM_MAX && src2w >= SIMM_MIN))
|
| 820 |
|| ((flags & LOGICAL_OP) && !(src2w & ~UIMM_MAX))) {
|
| 821 |
flags |= SRC2_IMM;
|
| 822 |
src2_r = src2w;
|
| 823 |
}
|
| 824 |
}
|
| 825 |
if ((src1 & SLJIT_IMM) && src1w && (flags & CUMULATIVE_OP) && !(flags & SRC2_IMM)) {
|
| 826 |
if ((!(flags & LOGICAL_OP) && (src1w <= SIMM_MAX && src1w >= SIMM_MIN))
|
| 827 |
|| ((flags & LOGICAL_OP) && !(src1w & ~UIMM_MAX))) {
|
| 828 |
flags |= SRC2_IMM;
|
| 829 |
src2_r = src1w;
|
| 830 |
|
| 831 |
/* And swap arguments. */
|
| 832 |
src1 = src2;
|
| 833 |
src1w = src2w;
|
| 834 |
src2 = SLJIT_IMM;
|
| 835 |
/* src2w = src2_r unneeded. */
|
| 836 |
}
|
| 837 |
}
|
| 838 |
}
|
| 839 |
|
| 840 |
/* Source 1. */
|
| 841 |
if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= TMP_REG3) {
|
| 842 |
src1_r = src1;
|
| 843 |
flags |= REG1_SOURCE;
|
| 844 |
}
|
| 845 |
else if (src1 & SLJIT_IMM) {
|
| 846 |
if (src1w) {
|
| 847 |
FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w));
|
| 848 |
src1_r = TMP_REG1;
|
| 849 |
}
|
| 850 |
else
|
| 851 |
src1_r = 0;
|
| 852 |
}
|
| 853 |
else {
|
| 854 |
if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w))
|
| 855 |
FAIL_IF(compiler->error);
|
| 856 |
else
|
| 857 |
flags |= SLOW_SRC1;
|
| 858 |
src1_r = TMP_REG1;
|
| 859 |
}
|
| 860 |
|
| 861 |
/* Source 2. */
|
| 862 |
if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= TMP_REG3) {
|
| 863 |
src2_r = src2;
|
| 864 |
flags |= REG2_SOURCE;
|
| 865 |
if (!(flags & REG_DEST) && GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI)
|
| 866 |
dst_r = src2_r;
|
| 867 |
}
|
| 868 |
else if (src2 & SLJIT_IMM) {
|
| 869 |
if (!(flags & SRC2_IMM)) {
|
| 870 |
if (src2w || (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI)) {
|
| 871 |
FAIL_IF(load_immediate(compiler, DR(sugg_src2_r), src2w));
|
| 872 |
src2_r = sugg_src2_r;
|
| 873 |
}
|
| 874 |
else
|
| 875 |
src2_r = 0;
|
| 876 |
}
|
| 877 |
}
|
| 878 |
else {
|
| 879 |
if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w))
|
| 880 |
FAIL_IF(compiler->error);
|
| 881 |
else
|
| 882 |
flags |= SLOW_SRC2;
|
| 883 |
src2_r = sugg_src2_r;
|
| 884 |
}
|
| 885 |
|
| 886 |
if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
|
| 887 |
SLJIT_ASSERT(src2_r == TMP_REG2);
|
| 888 |
if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
|
| 889 |
FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, src1, src1w));
|
| 890 |
FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw));
|
| 891 |
}
|
| 892 |
else {
|
| 893 |
FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, src2, src2w));
|
| 894 |
FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, dst, dstw));
|
| 895 |
}
|
| 896 |
}
|
| 897 |
else if (flags & SLOW_SRC1)
|
| 898 |
FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw));
|
| 899 |
else if (flags & SLOW_SRC2)
|
| 900 |
FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w, dst, dstw));
|
| 901 |
|
| 902 |
FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
|
| 903 |
|
| 904 |
if (dst & SLJIT_MEM) {
|
| 905 |
if (!(flags & SLOW_DEST)) {
|
| 906 |
getput_arg_fast(compiler, flags, DR(dst_r), dst, dstw);
|
| 907 |
return compiler->error;
|
| 908 |
}
|
| 909 |
return getput_arg(compiler, flags, DR(dst_r), dst, dstw, 0, 0);
|
| 910 |
}
|
| 911 |
|
| 912 |
return SLJIT_SUCCESS;
|
| 913 |
}
|
| 914 |
|
| 915 |
int sljit_emit_op0(struct sljit_compiler *compiler, int op)
|
| 916 |
{
|
| 917 |
CHECK_ERROR();
|
| 918 |
check_sljit_emit_op0(compiler, op);
|
| 919 |
|
| 920 |
op = GET_OPCODE(op);
|
| 921 |
switch (op) {
|
| 922 |
case SLJIT_BREAKPOINT:
|
| 923 |
return push_inst(compiler, BREAK, UNMOVABLE_INS);
|
| 924 |
case SLJIT_NOP:
|
| 925 |
return push_inst(compiler, NOP, UNMOVABLE_INS);
|
| 926 |
}
|
| 927 |
|
| 928 |
return SLJIT_SUCCESS;
|
| 929 |
}
|
| 930 |
|
| 931 |
int sljit_emit_op1(struct sljit_compiler *compiler, int op,
|
| 932 |
int dst, sljit_w dstw,
|
| 933 |
int src, sljit_w srcw)
|
| 934 |
{
|
| 935 |
#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
|
| 936 |
#define inp_flags 0
|
| 937 |
#endif
|
| 938 |
|
| 939 |
CHECK_ERROR();
|
| 940 |
check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
|
| 941 |
|
| 942 |
SLJIT_ASSERT(SLJIT_MOV + 7 == SLJIT_MOVU);
|
| 943 |
|
| 944 |
switch (GET_OPCODE(op)) {
|
| 945 |
case SLJIT_MOV:
|
| 946 |
return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 947 |
|
| 948 |
case SLJIT_MOV_UI:
|
| 949 |
return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 950 |
|
| 951 |
case SLJIT_MOV_SI:
|
| 952 |
return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 953 |
|
| 954 |
case SLJIT_MOV_UB:
|
| 955 |
return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
|
| 956 |
|
| 957 |
case SLJIT_MOV_SB:
|
| 958 |
return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
|
| 959 |
|
| 960 |
case SLJIT_MOV_UH:
|
| 961 |
return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
|
| 962 |
|
| 963 |
case SLJIT_MOV_SH:
|
| 964 |
return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
|
| 965 |
|
| 966 |
case SLJIT_MOVU:
|
| 967 |
return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 968 |
|
| 969 |
case SLJIT_MOVU_UI:
|
| 970 |
return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 971 |
|
| 972 |
case SLJIT_MOVU_SI:
|
| 973 |
return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 974 |
|
| 975 |
case SLJIT_MOVU_UB:
|
| 976 |
return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
|
| 977 |
|
| 978 |
case SLJIT_MOVU_SB:
|
| 979 |
return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
|
| 980 |
|
| 981 |
case SLJIT_MOVU_UH:
|
| 982 |
return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
|
| 983 |
|
| 984 |
case SLJIT_MOVU_SH:
|
| 985 |
return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
|
| 986 |
|
| 987 |
case SLJIT_NOT:
|
| 988 |
return emit_op(compiler, op, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 989 |
|
| 990 |
case SLJIT_NEG:
|
| 991 |
return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), inp_flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
|
| 992 |
|
| 993 |
case SLJIT_CLZ:
|
| 994 |
return emit_op(compiler, op, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 995 |
}
|
| 996 |
|
| 997 |
return SLJIT_SUCCESS;
|
| 998 |
#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
|
| 999 |
#undef inp_flags
|
| 1000 |
#endif
|
| 1001 |
}
|
| 1002 |
|
| 1003 |
int sljit_emit_op2(struct sljit_compiler *compiler, int op,
|
| 1004 |
int dst, sljit_w dstw,
|
| 1005 |
int src1, sljit_w src1w,
|
| 1006 |
int src2, sljit_w src2w)
|
| 1007 |
{
|
| 1008 |
#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
|
| 1009 |
#define inp_flags 0
|
| 1010 |
#endif
|
| 1011 |
|
| 1012 |
CHECK_ERROR();
|
| 1013 |
check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
|
| 1014 |
|
| 1015 |
switch (GET_OPCODE(op)) {
|
| 1016 |
case SLJIT_ADD:
|
| 1017 |
case SLJIT_ADDC:
|
| 1018 |
return emit_op(compiler, op, inp_flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
|
| 1019 |
|
| 1020 |
case SLJIT_SUB:
|
| 1021 |
case SLJIT_SUBC:
|
| 1022 |
return emit_op(compiler, op, inp_flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
|
| 1023 |
|
| 1024 |
case SLJIT_MUL:
|
| 1025 |
return emit_op(compiler, op, inp_flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w);
|
| 1026 |
|
| 1027 |
case SLJIT_AND:
|
| 1028 |
case SLJIT_OR:
|
| 1029 |
case SLJIT_XOR:
|
| 1030 |
return emit_op(compiler, op, inp_flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
|
| 1031 |
|
| 1032 |
case SLJIT_SHL:
|
| 1033 |
case SLJIT_LSHR:
|
| 1034 |
case SLJIT_ASHR:
|
| 1035 |
#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
|
| 1036 |
if (src2 & SLJIT_IMM)
|
| 1037 |
src2w &= 0x1f;
|
| 1038 |
#else
|
| 1039 |
if (src2 & SLJIT_IMM)
|
| 1040 |
src2w &= 0x3f;
|
| 1041 |
#endif
|
| 1042 |
return emit_op(compiler, op, inp_flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
|
| 1043 |
}
|
| 1044 |
|
| 1045 |
return SLJIT_SUCCESS;
|
| 1046 |
#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
|
| 1047 |
#undef inp_flags
|
| 1048 |
#endif
|
| 1049 |
}
|
| 1050 |
|
| 1051 |
/* --------------------------------------------------------------------- */
|
| 1052 |
/* Floating point operators */
|
| 1053 |
/* --------------------------------------------------------------------- */
|
| 1054 |
|
| 1055 |
int sljit_is_fpu_available(void)
|
| 1056 |
{
|
| 1057 |
#if 0
|
| 1058 |
sljit_w fir;
|
| 1059 |
asm ("cfc1 %0, $0" : "=r"(fir));
|
| 1060 |
return (fir >> 22) & 0x1;
|
| 1061 |
#endif
|
| 1062 |
/* Qemu says fir is 0 by default. */
|
| 1063 |
return 1;
|
| 1064 |
}
|
| 1065 |
|
| 1066 |
static int emit_fpu_data_transfer(struct sljit_compiler *compiler, int fpu_reg, int load, int arg, sljit_w argw)
|
| 1067 |
{
|
| 1068 |
int hi_reg;
|
| 1069 |
|
| 1070 |
SLJIT_ASSERT(arg & SLJIT_MEM);
|
| 1071 |
|
| 1072 |
/* Fast loads and stores. */
|
| 1073 |
if (!(arg & 0xf0)) {
|
| 1074 |
/* Both for (arg & 0xf) == SLJIT_UNUSED and (arg & 0xf) != SLJIT_UNUSED. */
|
| 1075 |
if (argw <= SIMM_MAX && argw >= SIMM_MIN)
|
| 1076 |
return push_inst(compiler, (load ? LDC1 : SDC1) | S(arg & 0xf) | FT(fpu_reg) | IMM(argw), MOVABLE_INS);
|
| 1077 |
}
|
| 1078 |
|
| 1079 |
if (arg & 0xf0) {
|
| 1080 |
argw &= 0x3;
|
| 1081 |
hi_reg = (arg >> 4) & 0xf;
|
| 1082 |
if (argw) {
|
| 1083 |
FAIL_IF(push_inst(compiler, SLL_W | T(hi_reg) | D(TMP_REG1) | SH_IMM(argw), DR(TMP_REG1)));
|
| 1084 |
hi_reg = TMP_REG1;
|
| 1085 |
}
|
| 1086 |
FAIL_IF(push_inst(compiler, ADDU_W | S(hi_reg) | T(arg & 0xf) | D(TMP_REG1), DR(TMP_REG1)));
|
| 1087 |
return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG1) | FT(fpu_reg) | IMM(0), MOVABLE_INS);
|
| 1088 |
}
|
| 1089 |
|
| 1090 |
/* Use cache. */
|
| 1091 |
if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN)
|
| 1092 |
return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG3) | FT(fpu_reg) | IMM(argw - compiler->cache_argw), MOVABLE_INS);
|
| 1093 |
|
| 1094 |
/* Put value to cache. */
|
| 1095 |
compiler->cache_arg = arg;
|
| 1096 |
compiler->cache_argw = argw;
|
| 1097 |
|
| 1098 |
FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw));
|
| 1099 |
if (arg & 0xf)
|
| 1100 |
FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(arg & 0xf) | D(TMP_REG3), DR(TMP_REG3)));
|
| 1101 |
return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG3) | FT(fpu_reg) | IMM(0), MOVABLE_INS);
|
| 1102 |
}
|
| 1103 |
|
| 1104 |
int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
|
| 1105 |
int dst, sljit_w dstw,
|
| 1106 |
int src, sljit_w srcw)
|
| 1107 |
{
|
| 1108 |
int dst_fr;
|
| 1109 |
|
| 1110 |
CHECK_ERROR();
|
| 1111 |
check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
|
| 1112 |
|
| 1113 |
compiler->cache_arg = 0;
|
| 1114 |
compiler->cache_argw = 0;
|
| 1115 |
|
| 1116 |
if (GET_OPCODE(op) == SLJIT_FCMP) {
|
| 1117 |
if (dst > SLJIT_FLOAT_REG4) {
|
| 1118 |
FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, dst, dstw));
|
| 1119 |
dst = TMP_FREG1;
|
| 1120 |
}
|
| 1121 |
if (src > SLJIT_FLOAT_REG4) {
|
| 1122 |
FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src, srcw));
|
| 1123 |
src = TMP_FREG2;
|
| 1124 |
}
|
| 1125 |
|
| 1126 |
/* src and dst are swapped. */
|
| 1127 |
if (op & SLJIT_SET_E)
|
| 1128 |
FAIL_IF(push_inst(compiler, C_UEQ_D | FT(src) | FS(dst) | (EQUAL_BIT << 8), FCSR_FCC + EQUAL_BIT));
|
| 1129 |
if (op & SLJIT_SET_S) {
|
| 1130 |
FAIL_IF(push_inst(compiler, C_ULT_D | FT(src) | FS(dst) | (LESS_BIT << 8), FCSR_FCC + LESS_BIT));
|
| 1131 |
FAIL_IF(push_inst(compiler, C_ULT_D | FT(dst) | FS(src) | (GREATER_BIT << 8), FCSR_FCC + GREATER_BIT));
|
| 1132 |
}
|
| 1133 |
return push_inst(compiler, C_UN_D | FT(src) | FS(dst) | (UNORD_BIT << 8), FCSR_FCC + UNORD_BIT);
|
| 1134 |
}
|
| 1135 |
|
| 1136 |
dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
|
| 1137 |
|
| 1138 |
if (src > SLJIT_FLOAT_REG4) {
|
| 1139 |
FAIL_IF(emit_fpu_data_transfer(compiler, dst_fr, 1, src, srcw));
|
| 1140 |
src = dst_fr;
|
| 1141 |
}
|
| 1142 |
|
| 1143 |
switch (op) {
|
| 1144 |
case SLJIT_FMOV:
|
| 1145 |
if (src != dst_fr && dst_fr != TMP_FREG1)
|
| 1146 |
FAIL_IF(push_inst(compiler, MOV_D | FS(src) | FD(dst_fr), MOVABLE_INS));
|
| 1147 |
break;
|
| 1148 |
case SLJIT_FNEG:
|
| 1149 |
FAIL_IF(push_inst(compiler, NEG_D | FS(src) | FD(dst_fr), MOVABLE_INS));
|
| 1150 |
break;
|
| 1151 |
case SLJIT_FABS:
|
| 1152 |
FAIL_IF(push_inst(compiler, ABS_D | FS(src) | FD(dst_fr), MOVABLE_INS));
|
| 1153 |
break;
|
| 1154 |
}
|
| 1155 |
|
| 1156 |
if (dst_fr == TMP_FREG1)
|
| 1157 |
FAIL_IF(emit_fpu_data_transfer(compiler, src, 0, dst, dstw));
|
| 1158 |
|
| 1159 |
return SLJIT_SUCCESS;
|
| 1160 |
}
|
| 1161 |
|
| 1162 |
int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
|
| 1163 |
int dst, sljit_w dstw,
|
| 1164 |
int src1, sljit_w src1w,
|
| 1165 |
int src2, sljit_w src2w)
|
| 1166 |
{
|
| 1167 |
int dst_fr;
|
| 1168 |
|
| 1169 |
CHECK_ERROR();
|
| 1170 |
check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
|
| 1171 |
|
| 1172 |
compiler->cache_arg = 0;
|
| 1173 |
compiler->cache_argw = 0;
|
| 1174 |
|
| 1175 |
dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
|
| 1176 |
|
| 1177 |
if (src2 > SLJIT_FLOAT_REG4) {
|
| 1178 |
FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w));
|
| 1179 |
src2 = TMP_FREG2;
|
| 1180 |
}
|
| 1181 |
|
| 1182 |
if (src1 > SLJIT_FLOAT_REG4) {
|
| 1183 |
FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w));
|
| 1184 |
src1 = TMP_FREG1;
|
| 1185 |
}
|
| 1186 |
|
| 1187 |
switch (op) {
|
| 1188 |
case SLJIT_FADD:
|
| 1189 |
FAIL_IF(push_inst(compiler, ADD_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS));
|
| 1190 |
break;
|
| 1191 |
|
| 1192 |
case SLJIT_FSUB:
|
| 1193 |
FAIL_IF(push_inst(compiler, SUB_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS));
|
| 1194 |
break;
|
| 1195 |
|
| 1196 |
case SLJIT_FMUL:
|
| 1197 |
FAIL_IF(push_inst(compiler, MUL_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS));
|
| 1198 |
break;
|
| 1199 |
|
| 1200 |
case SLJIT_FDIV:
|
| 1201 |
FAIL_IF(push_inst(compiler, DIV_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS));
|
| 1202 |
break;
|
| 1203 |
}
|
| 1204 |
|
| 1205 |
if (dst_fr == TMP_FREG1)
|
| 1206 |
FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 0, dst, dstw));
|
| 1207 |
|
| 1208 |
return SLJIT_SUCCESS;
|
| 1209 |
}
|
| 1210 |
|
| 1211 |
/* --------------------------------------------------------------------- */
|
| 1212 |
/* Other instructions */
|
| 1213 |
/* --------------------------------------------------------------------- */
|
| 1214 |
|
| 1215 |
int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw, int args, int temporaries, int generals, int local_size)
|
| 1216 |
{
|
| 1217 |
CHECK_ERROR();
|
| 1218 |
check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, generals, local_size);
|
| 1219 |
|
| 1220 |
compiler->temporaries = temporaries;
|
| 1221 |
compiler->generals = generals;
|
| 1222 |
|
| 1223 |
compiler->has_locals = local_size > 0;
|
| 1224 |
local_size += (generals + 2 + 4) * sizeof(sljit_w);
|
| 1225 |
compiler->local_size = (local_size + 15) & ~0xf;
|
| 1226 |
|
| 1227 |
if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS)
|
| 1228 |
return push_inst(compiler, ADDU_W | SA(31) | TA(0) | D(dst), DR(dst));
|
| 1229 |
else if (dst & SLJIT_MEM)
|
| 1230 |
return emit_op_mem(compiler, WORD_DATA, 31, dst, dstw);
|
| 1231 |
return SLJIT_SUCCESS;
|
| 1232 |
}
|
| 1233 |
|
| 1234 |
int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
|
| 1235 |
{
|
| 1236 |
CHECK_ERROR();
|
| 1237 |
check_sljit_emit_fast_return(compiler, src, srcw);
|
| 1238 |
|
| 1239 |
if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
|
| 1240 |
FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(31), 31));
|
| 1241 |
else if (src & SLJIT_MEM)
|
| 1242 |
FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, 31, src, srcw));
|
| 1243 |
else if (src & SLJIT_IMM)
|
| 1244 |
FAIL_IF(load_immediate(compiler, 31, srcw));
|
| 1245 |
|
| 1246 |
FAIL_IF(push_inst(compiler, JR | SA(31), UNMOVABLE_INS));
|
| 1247 |
return push_inst(compiler, NOP, UNMOVABLE_INS);
|
| 1248 |
}
|
| 1249 |
|
| 1250 |
/* --------------------------------------------------------------------- */
|
| 1251 |
/* Conditional instructions */
|
| 1252 |
/* --------------------------------------------------------------------- */
|
| 1253 |
|
| 1254 |
struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
|
| 1255 |
{
|
| 1256 |
struct sljit_label *label;
|
| 1257 |
|
| 1258 |
CHECK_ERROR_PTR();
|
| 1259 |
check_sljit_emit_label(compiler);
|
| 1260 |
|
| 1261 |
if (compiler->last_label && compiler->last_label->size == compiler->size)
|
| 1262 |
return compiler->last_label;
|
| 1263 |
|
| 1264 |
label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
|
| 1265 |
PTR_FAIL_IF(!label);
|
| 1266 |
set_label(label, compiler);
|
| 1267 |
compiler->delay_slot = UNMOVABLE_INS;
|
| 1268 |
return label;
|
| 1269 |
}
|
| 1270 |
|
| 1271 |
#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
|
| 1272 |
#define JUMP_LENGTH 4
|
| 1273 |
#else
|
| 1274 |
#define JUMP_LENGTH 7
|
| 1275 |
#endif
|
| 1276 |
|
| 1277 |
#define BR_Z(src) \
|
| 1278 |
inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \
|
| 1279 |
flags = IS_BIT26_COND; \
|
| 1280 |
delay_check = src;
|
| 1281 |
|
| 1282 |
#define BR_NZ(src) \
|
| 1283 |
inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \
|
| 1284 |
flags = IS_BIT26_COND; \
|
| 1285 |
delay_check = src;
|
| 1286 |
|
| 1287 |
#define BR_T(bit) \
|
| 1288 |
inst = BC1T | (bit << 18) | JUMP_LENGTH; \
|
| 1289 |
flags = IS_BIT16_COND; \
|
| 1290 |
delay_check = FCSR_FCC + bit;
|
| 1291 |
|
| 1292 |
#define BR_F(bit) \
|
| 1293 |
inst = BC1F | (bit << 18) | JUMP_LENGTH; \
|
| 1294 |
flags = IS_BIT16_COND; \
|
| 1295 |
delay_check = FCSR_FCC + bit;
|
| 1296 |
|
| 1297 |
struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
|
| 1298 |
{
|
| 1299 |
struct sljit_jump *jump;
|
| 1300 |
sljit_ins inst;
|
| 1301 |
int flags = 0;
|
| 1302 |
int delay_check = UNMOVABLE_INS;
|
| 1303 |
|
| 1304 |
CHECK_ERROR_PTR();
|
| 1305 |
check_sljit_emit_jump(compiler, type);
|
| 1306 |
|
| 1307 |
jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
|
| 1308 |
PTR_FAIL_IF(!jump);
|
| 1309 |
set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
|
| 1310 |
type &= 0xff;
|
| 1311 |
|
| 1312 |
switch (type) {
|
| 1313 |
case SLJIT_C_EQUAL:
|
| 1314 |
BR_NZ(EQUAL_FLAG);
|
| 1315 |
break;
|
| 1316 |
case SLJIT_C_NOT_EQUAL:
|
| 1317 |
BR_Z(EQUAL_FLAG);
|
| 1318 |
break;
|
| 1319 |
case SLJIT_C_LESS:
|
| 1320 |
BR_Z(ULESS_FLAG);
|
| 1321 |
break;
|
| 1322 |
case SLJIT_C_GREATER_EQUAL:
|
| 1323 |
BR_NZ(ULESS_FLAG);
|
| 1324 |
break;
|
| 1325 |
case SLJIT_C_GREATER:
|
| 1326 |
BR_Z(UGREATER_FLAG);
|
| 1327 |
break;
|
| 1328 |
case SLJIT_C_LESS_EQUAL:
|
| 1329 |
BR_NZ(UGREATER_FLAG);
|
| 1330 |
break;
|
| 1331 |
case SLJIT_C_SIG_LESS:
|
| 1332 |
BR_Z(LESS_FLAG);
|
| 1333 |
break;
|
| 1334 |
case SLJIT_C_SIG_GREATER_EQUAL:
|
| 1335 |
BR_NZ(LESS_FLAG);
|
| 1336 |
break;
|
| 1337 |
case SLJIT_C_SIG_GREATER:
|
| 1338 |
BR_Z(GREATER_FLAG);
|
| 1339 |
break;
|
| 1340 |
case SLJIT_C_SIG_LESS_EQUAL:
|
| 1341 |
BR_NZ(GREATER_FLAG);
|
| 1342 |
break;
|
| 1343 |
case SLJIT_C_OVERFLOW:
|
| 1344 |
case SLJIT_C_MUL_OVERFLOW:
|
| 1345 |
BR_Z(OVERFLOW_FLAG);
|
| 1346 |
break;
|
| 1347 |
case SLJIT_C_NOT_OVERFLOW:
|
| 1348 |
case SLJIT_C_MUL_NOT_OVERFLOW:
|
| 1349 |
BR_NZ(OVERFLOW_FLAG);
|
| 1350 |
break;
|
| 1351 |
case SLJIT_C_FLOAT_EQUAL:
|
| 1352 |
BR_F(EQUAL_BIT);
|
| 1353 |
break;
|
| 1354 |
case SLJIT_C_FLOAT_NOT_EQUAL:
|
| 1355 |
BR_T(EQUAL_BIT);
|
| 1356 |
break;
|
| 1357 |
case SLJIT_C_FLOAT_LESS:
|
| 1358 |
BR_F(LESS_BIT);
|
| 1359 |
break;
|
| 1360 |
case SLJIT_C_FLOAT_GREATER_EQUAL:
|
| 1361 |
BR_T(LESS_BIT);
|
| 1362 |
break;
|
| 1363 |
case SLJIT_C_FLOAT_GREATER:
|
| 1364 |
BR_F(GREATER_BIT);
|
| 1365 |
break;
|
| 1366 |
case SLJIT_C_FLOAT_LESS_EQUAL:
|
| 1367 |
BR_T(GREATER_BIT);
|
| 1368 |
break;
|
| 1369 |
case SLJIT_C_FLOAT_NAN:
|
| 1370 |
BR_F(UNORD_BIT);
|
| 1371 |
break;
|
| 1372 |
case SLJIT_C_FLOAT_NOT_NAN:
|
| 1373 |
BR_T(UNORD_BIT);
|
| 1374 |
break;
|
| 1375 |
default:
|
| 1376 |
/* Not conditional branch. */
|
| 1377 |
inst = 0;
|
| 1378 |
break;
|
| 1379 |
}
|
| 1380 |
|
| 1381 |
jump->flags |= flags;
|
| 1382 |
if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check))
|
| 1383 |
jump->flags |= IS_MOVABLE;
|
| 1384 |
|
| 1385 |
if (inst)
|
| 1386 |
PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS));
|
| 1387 |
|
| 1388 |
if (type >= SLJIT_CALL1)
|
| 1389 |
PTR_FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_TEMPORARY_REG1) | TA(0) | DA(4), 4));
|
| 1390 |
|
| 1391 |
PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
|
| 1392 |
if (type <= SLJIT_JUMP)
|
| 1393 |
PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
|
| 1394 |
else {
|
| 1395 |
jump->flags |= IS_JAL;
|
| 1396 |
PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(31), UNMOVABLE_INS));
|
| 1397 |
}
|
| 1398 |
jump->addr = compiler->size;
|
| 1399 |
PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
|
| 1400 |
return jump;
|
| 1401 |
}
|
| 1402 |
|
| 1403 |
#define RESOLVE_IMM1() \
|
| 1404 |
if (src1 & SLJIT_IMM) { \
|
| 1405 |
if (src1w) { \
|
| 1406 |
PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \
|
| 1407 |
src1 = TMP_REG1; \
|
| 1408 |
} \
|
| 1409 |
else \
|
| 1410 |
src1 = 0; \
|
| 1411 |
}
|
| 1412 |
|
| 1413 |
#define RESOLVE_IMM2() \
|
| 1414 |
if (src2 & SLJIT_IMM) { \
|
| 1415 |
if (src2w) { \
|
| 1416 |
PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \
|
| 1417 |
src2 = TMP_REG2; \
|
| 1418 |
} \
|
| 1419 |
else \
|
| 1420 |
src2 = 0; \
|
| 1421 |
}
|
| 1422 |
|
| 1423 |
struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, int type,
|
| 1424 |
int src1, sljit_w src1w,
|
| 1425 |
int src2, sljit_w src2w)
|
| 1426 |
{
|
| 1427 |
struct sljit_jump *jump;
|
| 1428 |
int flags;
|
| 1429 |
sljit_ins inst;
|
| 1430 |
|
| 1431 |
CHECK_ERROR_PTR();
|
| 1432 |
check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w);
|
| 1433 |
|
| 1434 |
compiler->cache_arg = 0;
|
| 1435 |
compiler->cache_argw = 0;
|
| 1436 |
flags = ((type & SLJIT_INT_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA;
|
| 1437 |
if (src1 & SLJIT_MEM) {
|
| 1438 |
if (getput_arg_fast(compiler, flags, DR(TMP_REG1), src1, src1w))
|
| 1439 |
PTR_FAIL_IF(compiler->error);
|
| 1440 |
else
|
| 1441 |
PTR_FAIL_IF(getput_arg(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w));
|
| 1442 |
src1 = TMP_REG1;
|
| 1443 |
}
|
| 1444 |
if (src2 & SLJIT_MEM) {
|
| 1445 |
if (getput_arg_fast(compiler, flags, DR(TMP_REG2), src2, src2w))
|
| 1446 |
PTR_FAIL_IF(compiler->error);
|
| 1447 |
else
|
| 1448 |
PTR_FAIL_IF(getput_arg(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0));
|
| 1449 |
src2 = TMP_REG2;
|
| 1450 |
}
|
| 1451 |
|
| 1452 |
jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
|
| 1453 |
PTR_FAIL_IF(!jump);
|
| 1454 |
set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
|
| 1455 |
type &= 0xff;
|
| 1456 |
|
| 1457 |
if (type <= SLJIT_C_NOT_EQUAL) {
|
| 1458 |
RESOLVE_IMM1();
|
| 1459 |
RESOLVE_IMM2();
|
| 1460 |
jump->flags |= IS_BIT26_COND;
|
| 1461 |
if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2)))
|
| 1462 |
jump->flags |= IS_MOVABLE;
|
| 1463 |
PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS));
|
| 1464 |
}
|
| 1465 |
else if (type >= SLJIT_C_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) {
|
| 1466 |
inst = NOP;
|
| 1467 |
if ((src1 & SLJIT_IMM) && (src1w == 0)) {
|
| 1468 |
RESOLVE_IMM2();
|
| 1469 |
switch (type) {
|
| 1470 |
case SLJIT_C_SIG_LESS:
|
| 1471 |
inst = BLEZ;
|
| 1472 |
jump->flags |= IS_BIT26_COND;
|
| 1473 |
break;
|
| 1474 |
case SLJIT_C_SIG_GREATER_EQUAL:
|
| 1475 |
inst = BGTZ;
|
| 1476 |
jump->flags |= IS_BIT26_COND;
|
| 1477 |
break;
|
| 1478 |
case SLJIT_C_SIG_GREATER:
|
| 1479 |
inst = BGEZ;
|
| 1480 |
jump->flags |= IS_BIT16_COND;
|
| 1481 |
break;
|
| 1482 |
case SLJIT_C_SIG_LESS_EQUAL:
|
| 1483 |
inst = BLTZ;
|
| 1484 |
jump->flags |= IS_BIT16_COND;
|
| 1485 |
break;
|
| 1486 |
}
|
| 1487 |
src1 = src2;
|
| 1488 |
}
|
| 1489 |
else {
|
| 1490 |
RESOLVE_IMM1();
|
| 1491 |
switch (type) {
|
| 1492 |
case SLJIT_C_SIG_LESS:
|
| 1493 |
inst = BGEZ;
|
| 1494 |
jump->flags |= IS_BIT16_COND;
|
| 1495 |
break;
|
| 1496 |
case SLJIT_C_SIG_GREATER_EQUAL:
|
| 1497 |
inst = BLTZ;
|
| 1498 |
jump->flags |= IS_BIT16_COND;
|
| 1499 |
break;
|
| 1500 |
case SLJIT_C_SIG_GREATER:
|
| 1501 |
inst = BLEZ;
|
| 1502 |
jump->flags |= IS_BIT26_COND;
|
| 1503 |
break;
|
| 1504 |
case SLJIT_C_SIG_LESS_EQUAL:
|
| 1505 |
inst = BGTZ;
|
| 1506 |
jump->flags |= IS_BIT26_COND;
|
| 1507 |
break;
|
| 1508 |
}
|
| 1509 |
}
|
| 1510 |
PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS));
|
| 1511 |
}
|
| 1512 |
else {
|
| 1513 |
if (type == SLJIT_C_LESS || type == SLJIT_C_GREATER_EQUAL || type == SLJIT_C_SIG_LESS || type == SLJIT_C_SIG_GREATER_EQUAL) {
|
| 1514 |
RESOLVE_IMM1();
|
| 1515 |
if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN)
|
| 1516 |
PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1)));
|
| 1517 |
else {
|
| 1518 |
RESOLVE_IMM2();
|
| 1519 |
PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1)));
|
| 1520 |
}
|
| 1521 |
type = (type == SLJIT_C_LESS || type == SLJIT_C_SIG_LESS) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL;
|
| 1522 |
}
|
| 1523 |
else {
|
| 1524 |
RESOLVE_IMM2();
|
| 1525 |
if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN)
|
| 1526 |
PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1)));
|
| 1527 |
else {
|
| 1528 |
RESOLVE_IMM1();
|
| 1529 |
PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1)));
|
| 1530 |
}
|
| 1531 |
type = (type == SLJIT_C_GREATER || type == SLJIT_C_SIG_GREATER) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL;
|
| 1532 |
}
|
| 1533 |
|
| 1534 |
jump->flags |= IS_BIT26_COND;
|
| 1535 |
PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS));
|
| 1536 |
}
|
| 1537 |
|
| 1538 |
PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
|
| 1539 |
PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
|
| 1540 |
jump->addr = compiler->size;
|
| 1541 |
PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
|
| 1542 |
return jump;
|
| 1543 |
}
|
| 1544 |
|
| 1545 |
#undef RESOLVE_IMM1
|
| 1546 |
#undef RESOLVE_IMM2
|
| 1547 |
|
| 1548 |
#undef JUMP_LENGTH
|
| 1549 |
#undef BR_Z
|
| 1550 |
#undef BR_NZ
|
| 1551 |
#undef BR_T
|
| 1552 |
#undef BR_F
|
| 1553 |
|
| 1554 |
int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
|
| 1555 |
{
|
| 1556 |
int src_r = TMP_REG2;
|
| 1557 |
struct sljit_jump *jump = NULL;
|
| 1558 |
|
| 1559 |
CHECK_ERROR();
|
| 1560 |
check_sljit_emit_ijump(compiler, type, src, srcw);
|
| 1561 |
|
| 1562 |
if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) {
|
| 1563 |
if (DR(src) < 4 || DR(src) > 6)
|
| 1564 |
src_r = src;
|
| 1565 |
else
|
| 1566 |
FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
|
| 1567 |
}
|
| 1568 |
|
| 1569 |
if (type >= SLJIT_CALL1)
|
| 1570 |
FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_TEMPORARY_REG1) | TA(0) | DA(4), 4));
|
| 1571 |
|
| 1572 |
if (src & SLJIT_IMM) {
|
| 1573 |
jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
|
| 1574 |
FAIL_IF(!jump);
|
| 1575 |
set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_CALL0) ? IS_JAL : 0));
|
| 1576 |
jump->u.target = srcw;
|
| 1577 |
|
| 1578 |
if (compiler->delay_slot != UNMOVABLE_INS)
|
| 1579 |
jump->flags |= IS_MOVABLE;
|
| 1580 |
|
| 1581 |
FAIL_IF(emit_const(compiler, TMP_REG2, 0));
|
| 1582 |
}
|
| 1583 |
else if (src & SLJIT_MEM)
|
| 1584 |
FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
|
| 1585 |
|
| 1586 |
if (type <= SLJIT_JUMP)
|
| 1587 |
FAIL_IF(push_inst(compiler, JR | S(src_r), UNMOVABLE_INS));
|
| 1588 |
else
|
| 1589 |
FAIL_IF(push_inst(compiler, JALR | S(src_r) | DA(31), UNMOVABLE_INS));
|
| 1590 |
if (jump)
|
| 1591 |
jump->addr = compiler->size;
|
| 1592 |
FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
|
| 1593 |
return SLJIT_SUCCESS;
|
| 1594 |
}
|
| 1595 |
|
| 1596 |
int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
|
| 1597 |
{
|
| 1598 |
int sugg_dst_ar, dst_ar;
|
| 1599 |
|
| 1600 |
CHECK_ERROR();
|
| 1601 |
check_sljit_emit_cond_value(compiler, op, dst, dstw, type);
|
| 1602 |
|
| 1603 |
if (dst == SLJIT_UNUSED)
|
| 1604 |
return SLJIT_SUCCESS;
|
| 1605 |
|
| 1606 |
sugg_dst_ar = DR((op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2);
|
| 1607 |
|
| 1608 |
switch (type) {
|
| 1609 |
case SLJIT_C_EQUAL:
|
| 1610 |
case SLJIT_C_NOT_EQUAL:
|
| 1611 |
FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar));
|
| 1612 |
dst_ar = sugg_dst_ar;
|
| 1613 |
break;
|
| 1614 |
case SLJIT_C_LESS:
|
| 1615 |
case SLJIT_C_GREATER_EQUAL:
|
| 1616 |
dst_ar = ULESS_FLAG;
|
| 1617 |
break;
|
| 1618 |
case SLJIT_C_GREATER:
|
| 1619 |
case SLJIT_C_LESS_EQUAL:
|
| 1620 |
dst_ar = UGREATER_FLAG;
|
| 1621 |
break;
|
| 1622 |
case SLJIT_C_SIG_LESS:
|
| 1623 |
case SLJIT_C_SIG_GREATER_EQUAL:
|
| 1624 |
dst_ar = LESS_FLAG;
|
| 1625 |
break;
|
| 1626 |
case SLJIT_C_SIG_GREATER:
|
| 1627 |
case SLJIT_C_SIG_LESS_EQUAL:
|
| 1628 |
dst_ar = GREATER_FLAG;
|
| 1629 |
break;
|
| 1630 |
case SLJIT_C_OVERFLOW:
|
| 1631 |
case SLJIT_C_NOT_OVERFLOW:
|
| 1632 |
dst_ar = OVERFLOW_FLAG;
|
| 1633 |
break;
|
| 1634 |
case SLJIT_C_MUL_OVERFLOW:
|
| 1635 |
case SLJIT_C_MUL_NOT_OVERFLOW:
|
| 1636 |
FAIL_IF(push_inst(compiler, SLTIU | SA(OVERFLOW_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar));
|
| 1637 |
dst_ar = sugg_dst_ar;
|
| 1638 |
type ^= 0x1; /* Flip type bit for the XORI below. */
|
| 1639 |
break;
|
| 1640 |
default:
|
| 1641 |
if (type >= SLJIT_C_FLOAT_EQUAL && type <= SLJIT_C_FLOAT_NOT_NAN) {
|
| 1642 |
FAIL_IF(push_inst(compiler, CFC1 | TA(sugg_dst_ar) | DA(31), sugg_dst_ar));
|
| 1643 |
switch (type) {
|
| 1644 |
case SLJIT_C_FLOAT_EQUAL:
|
| 1645 |
case SLJIT_C_FLOAT_NOT_EQUAL:
|
| 1646 |
dst_ar = EQUAL_BIT + 24;
|
| 1647 |
break;
|
| 1648 |
case SLJIT_C_FLOAT_LESS:
|
| 1649 |
case SLJIT_C_FLOAT_GREATER_EQUAL:
|
| 1650 |
dst_ar = LESS_BIT + 24;
|
| 1651 |
break;
|
| 1652 |
case SLJIT_C_FLOAT_GREATER:
|
| 1653 |
case SLJIT_C_FLOAT_LESS_EQUAL:
|
| 1654 |
dst_ar = GREATER_BIT + 24;
|
| 1655 |
break;
|
| 1656 |
case SLJIT_C_FLOAT_NAN:
|
| 1657 |
case SLJIT_C_FLOAT_NOT_NAN:
|
| 1658 |
dst_ar = UNORD_BIT + 24;
|
| 1659 |
break;
|
| 1660 |
}
|
| 1661 |
FAIL_IF(push_inst(compiler, EXT_W | SA(sugg_dst_ar) | TA(sugg_dst_ar) | (dst_ar << 6), sugg_dst_ar));
|
| 1662 |
}
|
| 1663 |
dst_ar = sugg_dst_ar;
|
| 1664 |
break;
|
| 1665 |
}
|
| 1666 |
|
| 1667 |
if (type & 0x1) {
|
| 1668 |
FAIL_IF(push_inst(compiler, XORI | SA(dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar));
|
| 1669 |
dst_ar = sugg_dst_ar;
|
| 1670 |
}
|
| 1671 |
|
| 1672 |
if (GET_OPCODE(op) == SLJIT_OR) {
|
| 1673 |
if (DR(TMP_REG2) != dst_ar)
|
| 1674 |
FAIL_IF(push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
|
| 1675 |
return emit_op(compiler, op, CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, dst, dstw, TMP_REG2, 0);
|
| 1676 |
}
|
| 1677 |
|
| 1678 |
if (dst & SLJIT_MEM)
|
| 1679 |
return emit_op_mem(compiler, WORD_DATA, dst_ar, dst, dstw);
|
| 1680 |
|
| 1681 |
if (sugg_dst_ar != dst_ar)
|
| 1682 |
return push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | DA(sugg_dst_ar), sugg_dst_ar);
|
| 1683 |
return SLJIT_SUCCESS;
|
| 1684 |
}
|
| 1685 |
|
| 1686 |
struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
|
| 1687 |
{
|
| 1688 |
struct sljit_const *const_;
|
| 1689 |
int reg;
|
| 1690 |
|
| 1691 |
CHECK_ERROR_PTR();
|
| 1692 |
check_sljit_emit_const(compiler, dst, dstw, init_value);
|
| 1693 |
|
| 1694 |
const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
|
| 1695 |
PTR_FAIL_IF(!const_);
|
| 1696 |
set_const(const_, compiler);
|
| 1697 |
|
| 1698 |
reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
|
| 1699 |
|
| 1700 |
PTR_FAIL_IF(emit_const(compiler, reg, init_value));
|
| 1701 |
|
| 1702 |
if (dst & SLJIT_MEM)
|
| 1703 |
PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
|
| 1704 |
return const_;
|
| 1705 |
}
|
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