| /* |
| * Stack-less Just-In-Time compiler |
| * |
| * Copyright 2009-2010 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, are |
| * permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, this list of |
| * conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright notice, this list |
| * of conditions and the following disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
| * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name() |
| { |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| return "mips-32"; |
| #else |
| #error "mips-64 is not yet supported" |
| #endif |
| } |
| |
| /* Latest MIPS architecture. */ |
| /* Detect SLJIT_MIPS_32_64 */ |
| |
| /* Length of an instruction word |
| Both for mips-32 and mips-64 */ |
| typedef sljit_ui sljit_ins; |
| |
| #define TMP_REG1 (SLJIT_NO_REGISTERS + 1) |
| #define TMP_REG2 (SLJIT_NO_REGISTERS + 2) |
| #define TMP_REG3 (SLJIT_NO_REGISTERS + 3) |
| #define REAL_STACK_PTR (SLJIT_NO_REGISTERS + 4) |
| |
| /* For position independent code, t9 must contain the function address. */ |
| #define PIC_ADDR_REG TMP_REG2 |
| |
| /* TMP_EREG1 is used mainly for literal encoding on 64 bit. */ |
| #define TMP_EREG1 15 |
| #define TMP_EREG2 24 |
| /* Floating point status register. */ |
| #define FCSR_REG 31 |
| /* Return address register. */ |
| #define RETURN_ADDR_REG 31 |
| |
| /* Flags are keept in volatile registers. */ |
| #define EQUAL_FLAG 7 |
| /* And carry flag as well. */ |
| #define ULESS_FLAG 10 |
| #define UGREATER_FLAG 11 |
| #define LESS_FLAG 12 |
| #define GREATER_FLAG 13 |
| #define OVERFLOW_FLAG 14 |
| |
| #define TMP_FREG1 (SLJIT_FLOAT_REG4 + 1) |
| #define TMP_FREG2 (SLJIT_FLOAT_REG4 + 2) |
| |
| /* --------------------------------------------------------------------- */ |
| /* Instrucion forms */ |
| /* --------------------------------------------------------------------- */ |
| |
| #define S(s) (reg_map[s] << 21) |
| #define T(t) (reg_map[t] << 16) |
| #define D(d) (reg_map[d] << 11) |
| /* Absolute registers. */ |
| #define SA(s) ((s) << 21) |
| #define TA(t) ((t) << 16) |
| #define DA(d) ((d) << 11) |
| #define FT(t) ((t) << (16 + 1)) |
| #define FS(s) ((s) << (11 + 1)) |
| #define FD(d) ((d) << (6 + 1)) |
| #define IMM(imm) ((imm) & 0xffff) |
| #define SH_IMM(imm) ((imm & 0x1f) << 6) |
| |
| #define DR(dr) (reg_map[dr]) |
| #define HI(opcode) ((opcode) << 26) |
| #define LO(opcode) (opcode) |
| #define FMT_D (17 << 21) |
| |
| #define ABS_D (HI(17) | FMT_D | LO(5)) |
| #define ADD_D (HI(17) | FMT_D | LO(0)) |
| #define ADDU (HI(0) | LO(33)) |
| #define ADDIU (HI(9)) |
| #define AND (HI(0) | LO(36)) |
| #define ANDI (HI(12)) |
| #define B (HI(4)) |
| #define BAL (HI(1) | (17 << 16)) |
| #define BC1F (HI(17) | (8 << 21)) |
| #define BC1T (HI(17) | (8 << 21) | (1 << 16)) |
| #define BEQ (HI(4)) |
| #define BGEZ (HI(1) | (1 << 16)) |
| #define BGTZ (HI(7)) |
| #define BLEZ (HI(6)) |
| #define BLTZ (HI(1) | (0 << 16)) |
| #define BNE (HI(5)) |
| #define BREAK (HI(0) | LO(13)) |
| #define C_UN_D (HI(17) | FMT_D | LO(49)) |
| #define C_UEQ_D (HI(17) | FMT_D | LO(51)) |
| #define C_ULT_D (HI(17) | FMT_D | LO(53)) |
| #define DIV_D (HI(17) | FMT_D | LO(3)) |
| #define J (HI(2)) |
| #define JAL (HI(3)) |
| #define JALR (HI(0) | LO(9)) |
| #define JR (HI(0) | LO(8)) |
| #define LD (HI(55)) |
| #define LDC1 (HI(53)) |
| #define LUI (HI(15)) |
| #define LW (HI(35)) |
| #define NEG_D (HI(17) | FMT_D | LO(7)) |
| #define MFHI (HI(0) | LO(16)) |
| #define MFLO (HI(0) | LO(18)) |
| #define MOV_D (HI(17) | FMT_D | LO(6)) |
| #define CFC1 (HI(17) | (2 << 21)) |
| #define MOVN (HI(0) | LO(11)) |
| #define MOVZ (HI(0) | LO(10)) |
| #define MUL_D (HI(17) | FMT_D | LO(2)) |
| #define MULT (HI(0) | LO(24)) |
| #define NOP (HI(0) | LO(0)) |
| #define NOR (HI(0) | LO(39)) |
| #define OR (HI(0) | LO(37)) |
| #define ORI (HI(13)) |
| #define SD (HI(63)) |
| #define SDC1 (HI(61)) |
| #define SLT (HI(0) | LO(42)) |
| #define SLTI (HI(10)) |
| #define SLTIU (HI(11)) |
| #define SLTU (HI(0) | LO(43)) |
| #define SLL (HI(0) | LO(0)) |
| #define SLLV (HI(0) | LO(4)) |
| #define SRL (HI(0) | LO(2)) |
| #define SRLV (HI(0) | LO(6)) |
| #define SRA (HI(0) | LO(3)) |
| #define SRAV (HI(0) | LO(7)) |
| #define SUB_D (HI(17) | FMT_D | LO(1)) |
| #define SUBU (HI(0) | LO(35)) |
| #define SW (HI(43)) |
| #define XOR (HI(0) | LO(38)) |
| #define XORI (HI(14)) |
| |
| #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) |
| #define CLZ (HI(28) | LO(32)) |
| #define MUL (HI(28) | LO(2)) |
| #define SEB (HI(31) | (16 << 6) | LO(32)) |
| #define SEH (HI(31) | (24 << 6) | LO(32)) |
| #endif |
| |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| #define ADDU_W ADDU |
| #define ADDIU_W ADDIU |
| #define SLL_W SLL |
| #define SUBU_W SUBU |
| #else |
| #define ADDU_W DADDU |
| #define ADDIU_W DADDIU |
| #define SLL_W DSLL |
| #define SUBU_W DSUBU |
| #endif |
| |
| #define SIMM_MAX (0x7fff) |
| #define SIMM_MIN (-0x8000) |
| #define UIMM_MAX (0xffff) |
| |
| static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 6] = { |
| 0, 2, 5, 6, 3, 8, 17, 18, 19, 20, 21, 16, 4, 25, 9, 29 |
| }; |
| |
| /* dest_reg is the absolute name of the register |
| Useful for reordering instructions in the delay slot. */ |
| static int push_inst(struct sljit_compiler *compiler, sljit_ins ins, int delay_slot) |
| { |
| sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins)); |
| FAIL_IF(!ptr); |
| *ptr = ins; |
| compiler->size++; |
| compiler->delay_slot = delay_slot; |
| return SLJIT_SUCCESS; |
| } |
| |
| static SLJIT_INLINE sljit_ins invert_branch(int flags) |
| { |
| return (flags & IS_BIT26_COND) ? (1 << 26) : (1 << 16); |
| } |
| |
| static SLJIT_INLINE sljit_ins* optimize_jump(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code) |
| { |
| sljit_w diff; |
| sljit_uw target_addr; |
| sljit_ins *inst; |
| sljit_ins saved_inst; |
| |
| if (jump->flags & SLJIT_REWRITABLE_JUMP) |
| return code_ptr; |
| |
| if (jump->flags & JUMP_ADDR) |
| target_addr = jump->u.target; |
| else { |
| SLJIT_ASSERT(jump->flags & JUMP_LABEL); |
| target_addr = (sljit_uw)(code + jump->u.label->size); |
| } |
| inst = (sljit_ins*)jump->addr; |
| if (jump->flags & IS_COND) |
| inst--; |
| |
| /* B instructions. */ |
| if (jump->flags & IS_MOVABLE) { |
| diff = ((sljit_w)target_addr - (sljit_w)(inst)) >> 2; |
| if (diff <= SIMM_MAX && diff >= SIMM_MIN) { |
| jump->flags |= PATCH_B; |
| |
| if (!(jump->flags & IS_COND)) { |
| inst[0] = inst[-1]; |
| inst[-1] = (jump->flags & IS_JAL) ? BAL : B; |
| jump->addr -= sizeof(sljit_ins); |
| return inst; |
| } |
| saved_inst = inst[0]; |
| inst[0] = inst[-1]; |
| inst[-1] = saved_inst ^ invert_branch(jump->flags); |
| jump->addr -= 2 * sizeof(sljit_ins); |
| return inst; |
| } |
| } |
| |
| diff = ((sljit_w)target_addr - (sljit_w)(inst + 1)) >> 2; |
| if (diff <= SIMM_MAX && diff >= SIMM_MIN) { |
| jump->flags |= PATCH_B; |
| |
| if (!(jump->flags & IS_COND)) { |
| inst[0] = (jump->flags & IS_JAL) ? BAL : B; |
| inst[1] = NOP; |
| return inst + 1; |
| } |
| inst[0] = inst[0] ^ invert_branch(jump->flags); |
| inst[1] = NOP; |
| jump->addr -= sizeof(sljit_ins); |
| return inst + 1; |
| } |
| |
| if (jump->flags & IS_COND) { |
| if ((target_addr & ~0xfffffff) == ((jump->addr + 3 * sizeof(sljit_ins)) & ~0xfffffff)) { |
| jump->flags |= PATCH_J; |
| inst[0] = (inst[0] & 0xffff0000) | 3; |
| inst[1] = NOP; |
| inst[2] = J; |
| inst[3] = NOP; |
| jump->addr += sizeof(sljit_ins); |
| return inst + 3; |
| } |
| return code_ptr; |
| } |
| |
| /* J instuctions. */ |
| if (jump->flags & IS_MOVABLE) { |
| if ((target_addr & ~0xfffffff) == (jump->addr & ~0xfffffff)) { |
| jump->flags |= PATCH_J; |
| inst[0] = inst[-1]; |
| inst[-1] = (jump->flags & IS_JAL) ? JAL : J; |
| jump->addr -= sizeof(sljit_ins); |
| return inst; |
| } |
| } |
| |
| if ((target_addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)) { |
| jump->flags |= PATCH_J; |
| inst[0] = (jump->flags & IS_JAL) ? JAL : J; |
| inst[1] = NOP; |
| return inst + 1; |
| } |
| |
| return code_ptr; |
| } |
| |
| #ifdef __GNUC__ |
| static __attribute__ ((noinline)) void sljit_cache_flush(void* code, void* code_ptr) |
| { |
| SLJIT_CACHE_FLUSH(code, code_ptr); |
| } |
| #endif |
| |
| SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler) |
| { |
| struct sljit_memory_fragment *buf; |
| sljit_ins *code; |
| sljit_ins *code_ptr; |
| sljit_ins *buf_ptr; |
| sljit_ins *buf_end; |
| sljit_uw word_count; |
| sljit_uw addr; |
| |
| struct sljit_label *label; |
| struct sljit_jump *jump; |
| struct sljit_const *const_; |
| |
| CHECK_ERROR_PTR(); |
| check_sljit_generate_code(compiler); |
| reverse_buf(compiler); |
| |
| code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins)); |
| PTR_FAIL_WITH_EXEC_IF(code); |
| buf = compiler->buf; |
| |
| code_ptr = code; |
| word_count = 0; |
| label = compiler->labels; |
| jump = compiler->jumps; |
| const_ = compiler->consts; |
| do { |
| buf_ptr = (sljit_ins*)buf->memory; |
| buf_end = buf_ptr + (buf->used_size >> 2); |
| do { |
| *code_ptr = *buf_ptr++; |
| SLJIT_ASSERT(!label || label->size >= word_count); |
| SLJIT_ASSERT(!jump || jump->addr >= word_count); |
| SLJIT_ASSERT(!const_ || const_->addr >= word_count); |
| /* These structures are ordered by their address. */ |
| if (label && label->size == word_count) { |
| /* Just recording the address. */ |
| label->addr = (sljit_uw)code_ptr; |
| label->size = code_ptr - code; |
| label = label->next; |
| } |
| if (jump && jump->addr == word_count) { |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| jump->addr = (sljit_uw)(code_ptr - 3); |
| #else |
| jump->addr = (sljit_uw)(code_ptr - 6); |
| #endif |
| code_ptr = optimize_jump(jump, code_ptr, code); |
| jump = jump->next; |
| } |
| if (const_ && const_->addr == word_count) { |
| /* Just recording the address. */ |
| const_->addr = (sljit_uw)code_ptr; |
| const_ = const_->next; |
| } |
| code_ptr ++; |
| word_count ++; |
| } while (buf_ptr < buf_end); |
| |
| buf = buf->next; |
| } while (buf); |
| |
| if (label && label->size == word_count) { |
| label->addr = (sljit_uw)code_ptr; |
| label->size = code_ptr - code; |
| label = label->next; |
| } |
| |
| SLJIT_ASSERT(!label); |
| SLJIT_ASSERT(!jump); |
| SLJIT_ASSERT(!const_); |
| SLJIT_ASSERT(code_ptr - code <= (int)compiler->size); |
| |
| jump = compiler->jumps; |
| while (jump) { |
| do { |
| addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target; |
| buf_ptr = (sljit_ins*)jump->addr; |
| |
| if (jump->flags & PATCH_B) { |
| addr = (sljit_w)(addr - (jump->addr + sizeof(sljit_ins))) >> 2; |
| SLJIT_ASSERT((sljit_w)addr <= SIMM_MAX && (sljit_w)addr >= SIMM_MIN); |
| buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | (addr & 0xffff); |
| break; |
| } |
| if (jump->flags & PATCH_J) { |
| SLJIT_ASSERT((addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)); |
| buf_ptr[0] |= (addr >> 2) & 0x03ffffff; |
| break; |
| } |
| |
| /* Set the fields of immediate loads. */ |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff); |
| buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff); |
| #else |
| buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff); |
| buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff); |
| buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff); |
| buf_ptr[4] = (buf_ptr[4] & 0xffff0000) | (addr & 0xffff); |
| #endif |
| } while (0); |
| jump = jump->next; |
| } |
| |
| compiler->error = SLJIT_ERR_COMPILED; |
| compiler->executable_size = compiler->size * sizeof(sljit_ins); |
| #ifndef __GNUC__ |
| SLJIT_CACHE_FLUSH(code, code_ptr); |
| #else |
| /* GCC workaround for invalid code generation with -O2. */ |
| sljit_cache_flush(code, code_ptr); |
| #endif |
| return code; |
| } |
| |
| /* Creates an index in data_transfer_insts array. */ |
| #define WORD_DATA 0x00 |
| #define BYTE_DATA 0x01 |
| #define HALF_DATA 0x02 |
| #define INT_DATA 0x03 |
| #define SIGNED_DATA 0x04 |
| #define LOAD_DATA 0x08 |
| |
| #define MEM_MASK 0x0f |
| |
| #define WRITE_BACK 0x00010 |
| #define ARG_TEST 0x00020 |
| #define CUMULATIVE_OP 0x00040 |
| #define LOGICAL_OP 0x00080 |
| #define IMM_OP 0x00100 |
| #define SRC2_IMM 0x00200 |
| |
| #define UNUSED_DEST 0x00400 |
| #define REG_DEST 0x00800 |
| #define REG1_SOURCE 0x01000 |
| #define REG2_SOURCE 0x02000 |
| #define SLOW_SRC1 0x04000 |
| #define SLOW_SRC2 0x08000 |
| #define SLOW_DEST 0x10000 |
| |
| /* Only these flags are set. UNUSED_DEST is not set when no flags should be set. */ |
| #define CHECK_FLAGS(list) \ |
| (!(flags & UNUSED_DEST) || (op & GET_FLAGS(~(list)))) |
| |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| #include "sljitNativeMIPS_32.c" |
| #else |
| #include "sljitNativeMIPS_64.c" |
| #endif |
| |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| #define STACK_STORE SW |
| #define STACK_LOAD LW |
| #else |
| #define STACK_STORE SD |
| #define STACK_LOAD LD |
| #endif |
| |
| static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags, |
| int dst, sljit_w dstw, |
| int src1, sljit_w src1w, |
| int src2, sljit_w src2w); |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size) |
| { |
| sljit_ins base; |
| |
| CHECK_ERROR(); |
| check_sljit_emit_enter(compiler, args, temporaries, generals, local_size); |
| |
| compiler->temporaries = temporaries; |
| compiler->generals = generals; |
| |
| compiler->has_locals = local_size > 0; |
| local_size += (generals + 2 + 4) * sizeof(sljit_w); |
| local_size = (local_size + 15) & ~0xf; |
| compiler->local_size = local_size; |
| |
| if (local_size <= SIMM_MAX) { |
| /* Frequent case. */ |
| FAIL_IF(push_inst(compiler, ADDIU_W | S(REAL_STACK_PTR) | T(REAL_STACK_PTR) | IMM(-local_size), DR(REAL_STACK_PTR))); |
| base = S(REAL_STACK_PTR); |
| } |
| else { |
| FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size)); |
| FAIL_IF(push_inst(compiler, ADDU_W | S(REAL_STACK_PTR) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); |
| FAIL_IF(push_inst(compiler, SUBU_W | S(REAL_STACK_PTR) | T(TMP_REG1) | D(REAL_STACK_PTR), DR(REAL_STACK_PTR))); |
| base = S(TMP_REG2); |
| local_size = 0; |
| } |
| |
| FAIL_IF(push_inst(compiler, STACK_STORE | base | TA(RETURN_ADDR_REG) | IMM(local_size - 1 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| if (compiler->has_locals) |
| FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_LOCALS_REG) | IMM(local_size - 2 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| if (generals >= 1) |
| FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_REG1) | IMM(local_size - 3 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| if (generals >= 2) |
| FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_REG2) | IMM(local_size - 4 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| if (generals >= 3) |
| FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_REG3) | IMM(local_size - 5 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| if (generals >= 4) |
| FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_EREG1) | IMM(local_size - 6 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| if (generals >= 5) |
| FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_GENERAL_EREG2) | IMM(local_size - 7 * (int)sizeof(sljit_w)), MOVABLE_INS)); |
| |
| if (compiler->has_locals) |
| FAIL_IF(push_inst(compiler, ADDIU_W | S(REAL_STACK_PTR) | T(SLJIT_LOCALS_REG) | IMM(4 * sizeof(sljit_w)), DR(SLJIT_LOCALS_REG))); |
| |
| if (args >= 1) |
| FAIL_IF(push_inst(compiler, ADDU_W | SA(4) | TA(0) | D(SLJIT_GENERAL_REG1), DR(SLJIT_GENERAL_REG1))); |
| if (args >= 2) |
| FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_GENERAL_REG2), DR(SLJIT_GENERAL_REG2))); |
| if (args >= 3) |
| FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_GENERAL_REG3), DR(SLJIT_GENERAL_REG3))); |
| |
| return SLJIT_SUCCESS; |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE void sljit_fake_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size) |
| { |
| CHECK_ERROR_VOID(); |
| check_sljit_fake_enter(compiler, args, temporaries, generals, local_size); |
| |
| compiler->temporaries = temporaries; |
| compiler->generals = generals; |
| |
| compiler->has_locals = local_size > 0; |
| local_size += (generals + 2 + 4) * sizeof(sljit_w); |
| compiler->local_size = (local_size + 15) & ~0xf; |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int src, sljit_w srcw) |
| { |
| int local_size; |
| sljit_ins base; |
| |
| CHECK_ERROR(); |
| check_sljit_emit_return(compiler, src, srcw); |
| |
| local_size = compiler->local_size; |
| |
| if (src != SLJIT_UNUSED && src != SLJIT_RETURN_REG) |
| FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, SLJIT_RETURN_REG, 0, TMP_REG1, 0, src, srcw)); |
| |
| if (local_size <= SIMM_MAX) |
| base = S(REAL_STACK_PTR); |
| else { |
| FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size)); |
| FAIL_IF(push_inst(compiler, ADDU_W | S(REAL_STACK_PTR) | T(TMP_REG1) | D(TMP_REG1), DR(TMP_REG1))); |
| base = S(TMP_REG1); |
| local_size = 0; |
| } |
| |
| FAIL_IF(push_inst(compiler, STACK_LOAD | base | TA(RETURN_ADDR_REG) | IMM(local_size - 1 * (int)sizeof(sljit_w)), RETURN_ADDR_REG)); |
| if (compiler->generals >= 5) |
| FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_EREG2) | IMM(local_size - 7 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_EREG2))); |
| if (compiler->generals >= 4) |
| FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_EREG1) | IMM(local_size - 6 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_EREG1))); |
| if (compiler->generals >= 3) |
| FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_REG3) | IMM(local_size - 5 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_REG3))); |
| if (compiler->generals >= 2) |
| FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_REG2) | IMM(local_size - 4 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_REG2))); |
| if (compiler->generals >= 1) |
| FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_GENERAL_REG1) | IMM(local_size - 3 * (int)sizeof(sljit_w)), DR(SLJIT_GENERAL_REG1))); |
| if (compiler->has_locals) |
| FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_LOCALS_REG) | IMM(local_size - 2 * (int)sizeof(sljit_w)), DR(SLJIT_LOCALS_REG))); |
| |
| FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); |
| if (compiler->local_size <= SIMM_MAX) |
| return push_inst(compiler, ADDIU_W | S(REAL_STACK_PTR) | T(REAL_STACK_PTR) | IMM(compiler->local_size), UNMOVABLE_INS); |
| else |
| return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(REAL_STACK_PTR), UNMOVABLE_INS); |
| } |
| |
| #undef STACK_STORE |
| #undef STACK_LOAD |
| |
| /* --------------------------------------------------------------------- */ |
| /* Operators */ |
| /* --------------------------------------------------------------------- */ |
| |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| #define ARCH_DEPEND(a, b) a |
| #else |
| #define ARCH_DEPEND(a, b) b |
| #endif |
| |
| static SLJIT_CONST sljit_ins data_transfer_insts[16] = { |
| /* s u w */ ARCH_DEPEND(HI(43) /* sw */, HI(63) /* sd */), |
| /* s u b */ HI(40) /* sb */, |
| /* s u h */ HI(41) /* sh*/, |
| /* s u i */ HI(43) /* sw */, |
| |
| /* s s w */ ARCH_DEPEND(HI(43) /* sw */, HI(63) /* sd */), |
| /* s s b */ HI(40) /* sb */, |
| /* s s h */ HI(41) /* sh*/, |
| /* s s i */ HI(43) /* sw */, |
| |
| /* l u w */ ARCH_DEPEND(HI(35) /* lw */, HI(55) /* ld */), |
| /* l u b */ HI(36) /* lbu */, |
| /* l u h */ HI(37) /* lhu */, |
| /* l u i */ ARCH_DEPEND(HI(35) /* lw */, HI(39) /* lwu */), |
| |
| /* l s w */ ARCH_DEPEND(HI(35) /* lw */, HI(55) /* ld */), |
| /* l s b */ HI(32) /* lb */, |
| /* l s h */ HI(33) /* lh */, |
| /* l s i */ HI(35) /* lw */, |
| }; |
| |
| /* reg_ar is an absoulute register! */ |
| |
| /* Can perform an operation using at most 1 instruction. */ |
| static int getput_arg_fast(struct sljit_compiler *compiler, int flags, int reg_ar, int arg, sljit_w argw) |
| { |
| SLJIT_ASSERT(arg & SLJIT_MEM); |
| |
| if (!(flags & WRITE_BACK) && !(arg & 0xf0) && argw <= SIMM_MAX && argw >= SIMM_MIN) { |
| /* Works for both absoulte and relative addresses. */ |
| if (SLJIT_UNLIKELY(flags & ARG_TEST)) |
| return 1; |
| 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)); |
| return -1; |
| } |
| return (flags & ARG_TEST) ? SLJIT_SUCCESS : 0; |
| } |
| |
| /* See getput_arg below. |
| Note: can_cache is called only for binary operators. Those |
| operators always uses word arguments without write back. */ |
| static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw) |
| { |
| if (!(next_arg & SLJIT_MEM)) |
| return 0; |
| |
| /* Simple operation except for updates. */ |
| if (arg & 0xf0) { |
| argw &= 0x3; |
| next_argw &= 0x3; |
| if (argw && argw == next_argw && (arg == next_arg || (arg & 0xf0) == (next_arg & 0xf0))) |
| return 1; |
| return 0; |
| } |
| |
| if (arg == next_arg) { |
| if (((sljit_uw)(next_argw - argw) <= SIMM_MAX && (sljit_uw)(next_argw - argw) >= SIMM_MIN)) |
| return 1; |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| /* Emit the necessary instructions. See can_cache above. */ |
| 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) |
| { |
| int tmp_ar; |
| int base; |
| |
| SLJIT_ASSERT(arg & SLJIT_MEM); |
| if (!(next_arg & SLJIT_MEM)) { |
| next_arg = 0; |
| next_argw = 0; |
| } |
| |
| tmp_ar = (flags & LOAD_DATA) ? reg_ar : DR(TMP_REG3); |
| base = arg & 0xf; |
| |
| if (SLJIT_UNLIKELY(arg & 0xf0)) { |
| argw &= 0x3; |
| if ((flags & WRITE_BACK) && reg_ar == DR(base)) { |
| SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar); |
| FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); |
| reg_ar = DR(TMP_REG1); |
| } |
| |
| /* Using the cache. */ |
| if (argw == compiler->cache_argw) { |
| if (!(flags & WRITE_BACK)) { |
| if (arg == compiler->cache_arg) |
| return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| if ((SLJIT_MEM | (arg & 0xf0)) == compiler->cache_arg) { |
| if (arg == next_arg && argw == (next_argw & 0x3)) { |
| compiler->cache_arg = arg; |
| compiler->cache_argw = argw; |
| FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); |
| return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| } |
| FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | DA(tmp_ar), tmp_ar)); |
| return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| } |
| } |
| else { |
| if ((SLJIT_MEM | (arg & 0xf0)) == compiler->cache_arg) { |
| FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); |
| return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| } |
| } |
| } |
| |
| if (SLJIT_UNLIKELY(argw)) { |
| compiler->cache_arg = SLJIT_MEM | (arg & 0xf0); |
| compiler->cache_argw = argw; |
| FAIL_IF(push_inst(compiler, SLL_W | T((arg >> 4) & 0xf) | D(TMP_REG3) | SH_IMM(argw), DR(TMP_REG3))); |
| } |
| |
| if (!(flags & WRITE_BACK)) { |
| if (arg == next_arg && argw == (next_argw & 0x3)) { |
| compiler->cache_arg = arg; |
| compiler->cache_argw = argw; |
| FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | D(TMP_REG3), DR(TMP_REG3))); |
| tmp_ar = DR(TMP_REG3); |
| } |
| else |
| FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | DA(tmp_ar), tmp_ar)); |
| return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| } |
| FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | D(base), DR(base))); |
| return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| } |
| |
| if (SLJIT_UNLIKELY(flags & WRITE_BACK) && base) { |
| /* Update only applies if a base register exists. */ |
| if (reg_ar == DR(base)) { |
| SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar); |
| if (argw <= SIMM_MAX && argw >= SIMM_MIN) { |
| FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar) | IMM(argw), MOVABLE_INS)); |
| if (argw) |
| return push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base)); |
| return SLJIT_SUCCESS; |
| } |
| FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); |
| reg_ar = DR(TMP_REG1); |
| } |
| |
| if (argw <= SIMM_MAX && argw >= SIMM_MIN) { |
| if (argw) |
| FAIL_IF(push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base))); |
| } |
| else { |
| if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { |
| if (argw != compiler->cache_argw) { |
| FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); |
| compiler->cache_argw = argw; |
| } |
| FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); |
| } |
| else { |
| compiler->cache_arg = SLJIT_MEM; |
| compiler->cache_argw = argw; |
| FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); |
| FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base))); |
| } |
| } |
| return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| } |
| |
| if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { |
| if (argw != compiler->cache_argw) { |
| FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); |
| compiler->cache_argw = argw; |
| } |
| return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| } |
| |
| if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) { |
| if (argw != compiler->cache_argw) |
| FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3))); |
| } |
| else { |
| compiler->cache_arg = SLJIT_MEM; |
| FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); |
| } |
| compiler->cache_argw = argw; |
| |
| if (!base) |
| return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| |
| if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) { |
| compiler->cache_arg = arg; |
| FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | D(TMP_REG3), DR(TMP_REG3))); |
| return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| } |
| |
| FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | DA(tmp_ar), tmp_ar)); |
| return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS); |
| } |
| |
| static SLJIT_INLINE int emit_op_mem(struct sljit_compiler *compiler, int flags, int reg_ar, int arg, sljit_w argw) |
| { |
| if (getput_arg_fast(compiler, flags, reg_ar, arg, argw)) |
| return compiler->error; |
| compiler->cache_arg = 0; |
| compiler->cache_argw = 0; |
| return getput_arg(compiler, flags, reg_ar, arg, argw, 0, 0); |
| } |
| |
| static int emit_op(struct sljit_compiler *compiler, int op, int flags, |
| int dst, sljit_w dstw, |
| int src1, sljit_w src1w, |
| int src2, sljit_w src2w) |
| { |
| /* arg1 goes to TMP_REG1 or src reg |
| arg2 goes to TMP_REG2, imm or src reg |
| TMP_REG3 can be used for caching |
| result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */ |
| int dst_r = TMP_REG2; |
| int src1_r; |
| sljit_w src2_r = 0; |
| int sugg_src2_r = TMP_REG2; |
| |
| compiler->cache_arg = 0; |
| compiler->cache_argw = 0; |
| |
| if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REG3) { |
| dst_r = dst; |
| flags |= REG_DEST; |
| if (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI) |
| sugg_src2_r = dst_r; |
| } |
| else if (dst == SLJIT_UNUSED) { |
| if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM)) |
| return SLJIT_SUCCESS; |
| if (GET_FLAGS(op)) |
| flags |= UNUSED_DEST; |
| } |
| else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, DR(TMP_REG1), dst, dstw)) |
| flags |= SLOW_DEST; |
| |
| if (flags & IMM_OP) { |
| if ((src2 & SLJIT_IMM) && src2w) { |
| if ((!(flags & LOGICAL_OP) && (src2w <= SIMM_MAX && src2w >= SIMM_MIN)) |
| || ((flags & LOGICAL_OP) && !(src2w & ~UIMM_MAX))) { |
| flags |= SRC2_IMM; |
| src2_r = src2w; |
| } |
| } |
| if ((src1 & SLJIT_IMM) && src1w && (flags & CUMULATIVE_OP) && !(flags & SRC2_IMM)) { |
| if ((!(flags & LOGICAL_OP) && (src1w <= SIMM_MAX && src1w >= SIMM_MIN)) |
| || ((flags & LOGICAL_OP) && !(src1w & ~UIMM_MAX))) { |
| flags |= SRC2_IMM; |
| src2_r = src1w; |
| |
| /* And swap arguments. */ |
| src1 = src2; |
| src1w = src2w; |
| src2 = SLJIT_IMM; |
| /* src2w = src2_r unneeded. */ |
| } |
| } |
| } |
| |
| /* Source 1. */ |
| if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= TMP_REG3) { |
| src1_r = src1; |
| flags |= REG1_SOURCE; |
| } |
| else if (src1 & SLJIT_IMM) { |
| if (src1w) { |
| FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); |
| src1_r = TMP_REG1; |
| } |
| else |
| src1_r = 0; |
| } |
| else { |
| if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w)) |
| FAIL_IF(compiler->error); |
| else |
| flags |= SLOW_SRC1; |
| src1_r = TMP_REG1; |
| } |
| |
| /* Source 2. */ |
| if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= TMP_REG3) { |
| src2_r = src2; |
| flags |= REG2_SOURCE; |
| if (!(flags & REG_DEST) && GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI) |
| dst_r = src2_r; |
| } |
| else if (src2 & SLJIT_IMM) { |
| if (!(flags & SRC2_IMM)) { |
| if (src2w || (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI)) { |
| FAIL_IF(load_immediate(compiler, DR(sugg_src2_r), src2w)); |
| src2_r = sugg_src2_r; |
| } |
| else |
| src2_r = 0; |
| } |
| } |
| else { |
| if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w)) |
| FAIL_IF(compiler->error); |
| else |
| flags |= SLOW_SRC2; |
| src2_r = sugg_src2_r; |
| } |
| |
| if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) { |
| SLJIT_ASSERT(src2_r == TMP_REG2); |
| if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) { |
| FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, src1, src1w)); |
| FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); |
| } |
| else { |
| FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, src2, src2w)); |
| FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, dst, dstw)); |
| } |
| } |
| else if (flags & SLOW_SRC1) |
| FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw)); |
| else if (flags & SLOW_SRC2) |
| FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w, dst, dstw)); |
| |
| FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r)); |
| |
| if (dst & SLJIT_MEM) { |
| if (!(flags & SLOW_DEST)) { |
| getput_arg_fast(compiler, flags, DR(dst_r), dst, dstw); |
| return compiler->error; |
| } |
| return getput_arg(compiler, flags, DR(dst_r), dst, dstw, 0, 0); |
| } |
| |
| return SLJIT_SUCCESS; |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op) |
| { |
| CHECK_ERROR(); |
| check_sljit_emit_op0(compiler, op); |
| |
| op = GET_OPCODE(op); |
| switch (op) { |
| case SLJIT_BREAKPOINT: |
| return push_inst(compiler, BREAK, UNMOVABLE_INS); |
| case SLJIT_NOP: |
| return push_inst(compiler, NOP, UNMOVABLE_INS); |
| } |
| |
| return SLJIT_SUCCESS; |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op, |
| int dst, sljit_w dstw, |
| int src, sljit_w srcw) |
| { |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| #define inp_flags 0 |
| #endif |
| |
| CHECK_ERROR(); |
| check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw); |
| |
| SLJIT_COMPILE_ASSERT(SLJIT_MOV + 7 == SLJIT_MOVU, movu_offset); |
| |
| switch (GET_OPCODE(op)) { |
| case SLJIT_MOV: |
| return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw); |
| |
| case SLJIT_MOV_UI: |
| return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw); |
| |
| case SLJIT_MOV_SI: |
| return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw); |
| |
| case SLJIT_MOV_UB: |
| return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw); |
| |
| case SLJIT_MOV_SB: |
| 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); |
| |
| case SLJIT_MOV_UH: |
| return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw); |
| |
| case SLJIT_MOV_SH: |
| 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); |
| |
| case SLJIT_MOVU: |
| return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); |
| |
| case SLJIT_MOVU_UI: |
| return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); |
| |
| case SLJIT_MOVU_SI: |
| return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw); |
| |
| case SLJIT_MOVU_UB: |
| 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); |
| |
| case SLJIT_MOVU_SB: |
| 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); |
| |
| case SLJIT_MOVU_UH: |
| 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); |
| |
| case SLJIT_MOVU_SH: |
| 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); |
| |
| case SLJIT_NOT: |
| return emit_op(compiler, op, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw); |
| |
| case SLJIT_NEG: |
| return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), inp_flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw); |
| |
| case SLJIT_CLZ: |
| return emit_op(compiler, op, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw); |
| } |
| |
| return SLJIT_SUCCESS; |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| #undef inp_flags |
| #endif |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op, |
| int dst, sljit_w dstw, |
| int src1, sljit_w src1w, |
| int src2, sljit_w src2w) |
| { |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| #define inp_flags 0 |
| #endif |
| |
| CHECK_ERROR(); |
| check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w); |
| |
| switch (GET_OPCODE(op)) { |
| case SLJIT_ADD: |
| case SLJIT_ADDC: |
| return emit_op(compiler, op, inp_flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); |
| |
| case SLJIT_SUB: |
| case SLJIT_SUBC: |
| return emit_op(compiler, op, inp_flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); |
| |
| case SLJIT_MUL: |
| return emit_op(compiler, op, inp_flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w); |
| |
| case SLJIT_AND: |
| case SLJIT_OR: |
| case SLJIT_XOR: |
| return emit_op(compiler, op, inp_flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w); |
| |
| case SLJIT_SHL: |
| case SLJIT_LSHR: |
| case SLJIT_ASHR: |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| if (src2 & SLJIT_IMM) |
| src2w &= 0x1f; |
| #else |
| if (src2 & SLJIT_IMM) |
| src2w &= 0x3f; |
| #endif |
| return emit_op(compiler, op, inp_flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w); |
| } |
| |
| return SLJIT_SUCCESS; |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| #undef inp_flags |
| #endif |
| } |
| |
| /* --------------------------------------------------------------------- */ |
| /* Floating point operators */ |
| /* --------------------------------------------------------------------- */ |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void) |
| { |
| #if (defined SLJIT_QEMU && SLJIT_QEMU) |
| /* Qemu says fir is 0 by default. */ |
| return 1; |
| #elif defined(__GNUC__) |
| sljit_w fir; |
| asm ("cfc1 %0, $0" : "=r"(fir)); |
| return (fir >> 22) & 0x1; |
| #else |
| #error "FIR check is not implemented for this architecture" |
| #endif |
| } |
| |
| static int emit_fpu_data_transfer(struct sljit_compiler *compiler, int fpu_reg, int load, int arg, sljit_w argw) |
| { |
| int hi_reg; |
| |
| SLJIT_ASSERT(arg & SLJIT_MEM); |
| |
| /* Fast loads and stores. */ |
| if (!(arg & 0xf0)) { |
| /* Both for (arg & 0xf) == SLJIT_UNUSED and (arg & 0xf) != SLJIT_UNUSED. */ |
| if (argw <= SIMM_MAX && argw >= SIMM_MIN) |
| return push_inst(compiler, (load ? LDC1 : SDC1) | S(arg & 0xf) | FT(fpu_reg) | IMM(argw), MOVABLE_INS); |
| } |
| |
| if (arg & 0xf0) { |
| argw &= 0x3; |
| hi_reg = (arg >> 4) & 0xf; |
| if (argw) { |
| FAIL_IF(push_inst(compiler, SLL_W | T(hi_reg) | D(TMP_REG1) | SH_IMM(argw), DR(TMP_REG1))); |
| hi_reg = TMP_REG1; |
| } |
| FAIL_IF(push_inst(compiler, ADDU_W | S(hi_reg) | T(arg & 0xf) | D(TMP_REG1), DR(TMP_REG1))); |
| return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG1) | FT(fpu_reg) | IMM(0), MOVABLE_INS); |
| } |
| |
| /* Use cache. */ |
| if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) |
| return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG3) | FT(fpu_reg) | IMM(argw - compiler->cache_argw), MOVABLE_INS); |
| |
| /* Put value to cache. */ |
| compiler->cache_arg = arg; |
| compiler->cache_argw = argw; |
| |
| FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw)); |
| if (arg & 0xf) |
| FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(arg & 0xf) | D(TMP_REG3), DR(TMP_REG3))); |
| return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG3) | FT(fpu_reg) | IMM(0), MOVABLE_INS); |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op, |
| int dst, sljit_w dstw, |
| int src, sljit_w srcw) |
| { |
| int dst_fr; |
| |
| CHECK_ERROR(); |
| check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw); |
| |
| compiler->cache_arg = 0; |
| compiler->cache_argw = 0; |
| |
| if (GET_OPCODE(op) == SLJIT_FCMP) { |
| if (dst > SLJIT_FLOAT_REG4) { |
| FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, dst, dstw)); |
| dst = TMP_FREG1; |
| } |
| if (src > SLJIT_FLOAT_REG4) { |
| FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src, srcw)); |
| src = TMP_FREG2; |
| } |
| |
| /* src and dst are swapped. */ |
| if (op & SLJIT_SET_E) { |
| FAIL_IF(push_inst(compiler, C_UEQ_D | FT(src) | FS(dst), UNMOVABLE_INS)); |
| FAIL_IF(push_inst(compiler, CFC1 | TA(EQUAL_FLAG) | DA(FCSR_REG), EQUAL_FLAG)); |
| FAIL_IF(push_inst(compiler, SRL | TA(EQUAL_FLAG) | DA(EQUAL_FLAG) | SH_IMM(23), EQUAL_FLAG)); |
| FAIL_IF(push_inst(compiler, ANDI | SA(EQUAL_FLAG) | TA(EQUAL_FLAG) | IMM(1), EQUAL_FLAG)); |
| } |
| if (op & SLJIT_SET_S) { |
| /* Mixing the instructions for the two checks. */ |
| FAIL_IF(push_inst(compiler, C_ULT_D | FT(src) | FS(dst), UNMOVABLE_INS)); |
| FAIL_IF(push_inst(compiler, CFC1 | TA(ULESS_FLAG) | DA(FCSR_REG), ULESS_FLAG)); |
| FAIL_IF(push_inst(compiler, C_ULT_D | FT(dst) | FS(src), UNMOVABLE_INS)); |
| FAIL_IF(push_inst(compiler, SRL | TA(ULESS_FLAG) | DA(ULESS_FLAG) | SH_IMM(23), ULESS_FLAG)); |
| FAIL_IF(push_inst(compiler, ANDI | SA(ULESS_FLAG) | TA(ULESS_FLAG) | IMM(1), ULESS_FLAG)); |
| FAIL_IF(push_inst(compiler, CFC1 | TA(UGREATER_FLAG) | DA(FCSR_REG), UGREATER_FLAG)); |
| FAIL_IF(push_inst(compiler, SRL | TA(UGREATER_FLAG) | DA(UGREATER_FLAG) | SH_IMM(23), UGREATER_FLAG)); |
| FAIL_IF(push_inst(compiler, ANDI | SA(UGREATER_FLAG) | TA(UGREATER_FLAG) | IMM(1), UGREATER_FLAG)); |
| } |
| return push_inst(compiler, C_UN_D | FT(src) | FS(dst), FCSR_FCC); |
| } |
| |
| dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst; |
| |
| if (src > SLJIT_FLOAT_REG4) { |
| FAIL_IF(emit_fpu_data_transfer(compiler, dst_fr, 1, src, srcw)); |
| src = dst_fr; |
| } |
| |
| switch (op) { |
| case SLJIT_FMOV: |
| if (src != dst_fr && dst_fr != TMP_FREG1) |
| FAIL_IF(push_inst(compiler, MOV_D | FS(src) | FD(dst_fr), MOVABLE_INS)); |
| break; |
| case SLJIT_FNEG: |
| FAIL_IF(push_inst(compiler, NEG_D | FS(src) | FD(dst_fr), MOVABLE_INS)); |
| break; |
| case SLJIT_FABS: |
| FAIL_IF(push_inst(compiler, ABS_D | FS(src) | FD(dst_fr), MOVABLE_INS)); |
| break; |
| } |
| |
| if (dst_fr == TMP_FREG1) |
| FAIL_IF(emit_fpu_data_transfer(compiler, src, 0, dst, dstw)); |
| |
| return SLJIT_SUCCESS; |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op, |
| int dst, sljit_w dstw, |
| int src1, sljit_w src1w, |
| int src2, sljit_w src2w) |
| { |
| int dst_fr; |
| |
| CHECK_ERROR(); |
| check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w); |
| |
| compiler->cache_arg = 0; |
| compiler->cache_argw = 0; |
| |
| dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst; |
| |
| if (src2 > SLJIT_FLOAT_REG4) { |
| FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w)); |
| src2 = TMP_FREG2; |
| } |
| |
| if (src1 > SLJIT_FLOAT_REG4) { |
| FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w)); |
| src1 = TMP_FREG1; |
| } |
| |
| switch (op) { |
| case SLJIT_FADD: |
| FAIL_IF(push_inst(compiler, ADD_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); |
| break; |
| |
| case SLJIT_FSUB: |
| FAIL_IF(push_inst(compiler, SUB_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); |
| break; |
| |
| case SLJIT_FMUL: |
| FAIL_IF(push_inst(compiler, MUL_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); |
| break; |
| |
| case SLJIT_FDIV: |
| FAIL_IF(push_inst(compiler, DIV_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS)); |
| break; |
| } |
| |
| if (dst_fr == TMP_FREG1) |
| FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 0, dst, dstw)); |
| |
| return SLJIT_SUCCESS; |
| } |
| |
| /* --------------------------------------------------------------------- */ |
| /* Other instructions */ |
| /* --------------------------------------------------------------------- */ |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw, int args, int temporaries, int generals, int local_size) |
| { |
| CHECK_ERROR(); |
| check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, generals, local_size); |
| |
| compiler->temporaries = temporaries; |
| compiler->generals = generals; |
| |
| compiler->has_locals = local_size > 0; |
| local_size += (generals + 2 + 4) * sizeof(sljit_w); |
| compiler->local_size = (local_size + 15) & ~0xf; |
| |
| if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) |
| return push_inst(compiler, ADDU_W | SA(RETURN_ADDR_REG) | TA(0) | D(dst), DR(dst)); |
| else if (dst & SLJIT_MEM) |
| return emit_op_mem(compiler, WORD_DATA, RETURN_ADDR_REG, dst, dstw); |
| return SLJIT_SUCCESS; |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw) |
| { |
| CHECK_ERROR(); |
| check_sljit_emit_fast_return(compiler, src, srcw); |
| |
| if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) |
| FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(RETURN_ADDR_REG), RETURN_ADDR_REG)); |
| else if (src & SLJIT_MEM) |
| FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw)); |
| else if (src & SLJIT_IMM) |
| FAIL_IF(load_immediate(compiler, RETURN_ADDR_REG, srcw)); |
| |
| FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS)); |
| return push_inst(compiler, NOP, UNMOVABLE_INS); |
| } |
| |
| /* --------------------------------------------------------------------- */ |
| /* Conditional instructions */ |
| /* --------------------------------------------------------------------- */ |
| |
| SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler) |
| { |
| struct sljit_label *label; |
| |
| CHECK_ERROR_PTR(); |
| check_sljit_emit_label(compiler); |
| |
| if (compiler->last_label && compiler->last_label->size == compiler->size) |
| return compiler->last_label; |
| |
| label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label)); |
| PTR_FAIL_IF(!label); |
| set_label(label, compiler); |
| compiler->delay_slot = UNMOVABLE_INS; |
| return label; |
| } |
| |
| #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) |
| #define JUMP_LENGTH 4 |
| #else |
| #define JUMP_LENGTH 7 |
| #endif |
| |
| #define BR_Z(src) \ |
| inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \ |
| flags = IS_BIT26_COND; \ |
| delay_check = src; |
| |
| #define BR_NZ(src) \ |
| inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \ |
| flags = IS_BIT26_COND; \ |
| delay_check = src; |
| |
| #define BR_T() \ |
| inst = BC1T | JUMP_LENGTH; \ |
| flags = IS_BIT16_COND; \ |
| delay_check = FCSR_FCC; |
| |
| #define BR_F() \ |
| inst = BC1F | JUMP_LENGTH; \ |
| flags = IS_BIT16_COND; \ |
| delay_check = FCSR_FCC; |
| |
| SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type) |
| { |
| struct sljit_jump *jump; |
| sljit_ins inst; |
| int flags = 0; |
| int delay_check = UNMOVABLE_INS; |
| |
| CHECK_ERROR_PTR(); |
| check_sljit_emit_jump(compiler, type); |
| |
| jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); |
| PTR_FAIL_IF(!jump); |
| set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); |
| type &= 0xff; |
| |
| switch (type) { |
| case SLJIT_C_EQUAL: |
| case SLJIT_C_FLOAT_NOT_EQUAL: |
| BR_NZ(EQUAL_FLAG); |
| break; |
| case SLJIT_C_NOT_EQUAL: |
| case SLJIT_C_FLOAT_EQUAL: |
| BR_Z(EQUAL_FLAG); |
| break; |
| case SLJIT_C_LESS: |
| case SLJIT_C_FLOAT_LESS: |
| BR_Z(ULESS_FLAG); |
| break; |
| case SLJIT_C_GREATER_EQUAL: |
| case SLJIT_C_FLOAT_GREATER_EQUAL: |
| BR_NZ(ULESS_FLAG); |
| break; |
| case SLJIT_C_GREATER: |
| case SLJIT_C_FLOAT_GREATER: |
| BR_Z(UGREATER_FLAG); |
| break; |
| case SLJIT_C_LESS_EQUAL: |
| case SLJIT_C_FLOAT_LESS_EQUAL: |
| BR_NZ(UGREATER_FLAG); |
| break; |
| case SLJIT_C_SIG_LESS: |
| BR_Z(LESS_FLAG); |
| break; |
| case SLJIT_C_SIG_GREATER_EQUAL: |
| BR_NZ(LESS_FLAG); |
| break; |
| case SLJIT_C_SIG_GREATER: |
| BR_Z(GREATER_FLAG); |
| break; |
| case SLJIT_C_SIG_LESS_EQUAL: |
| BR_NZ(GREATER_FLAG); |
| break; |
| case SLJIT_C_OVERFLOW: |
| case SLJIT_C_MUL_OVERFLOW: |
| BR_Z(OVERFLOW_FLAG); |
| break; |
| case SLJIT_C_NOT_OVERFLOW: |
| case SLJIT_C_MUL_NOT_OVERFLOW: |
| BR_NZ(OVERFLOW_FLAG); |
| break; |
| case SLJIT_C_FLOAT_NAN: |
| BR_F(); |
| break; |
| case SLJIT_C_FLOAT_NOT_NAN: |
| BR_T(); |
| break; |
| default: |
| /* Not conditional branch. */ |
| inst = 0; |
| break; |
| } |
| |
| jump->flags |= flags; |
| if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check)) |
| jump->flags |= IS_MOVABLE; |
| |
| if (inst) |
| PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS)); |
| |
| PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); |
| if (type <= SLJIT_JUMP) { |
| PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); |
| jump->addr = compiler->size; |
| PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); |
| } else { |
| SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2); |
| /* Cannot be optimized out if type is >= CALL0. */ |
| jump->flags |= IS_JAL | (type >= SLJIT_CALL0 ? SLJIT_REWRITABLE_JUMP : 0); |
| PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); |
| jump->addr = compiler->size; |
| /* A NOP if type < CALL1. */ |
| PTR_FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_TEMPORARY_REG1) | TA(0) | DA(4), UNMOVABLE_INS)); |
| } |
| return jump; |
| } |
| |
| #define RESOLVE_IMM1() \ |
| if (src1 & SLJIT_IMM) { \ |
| if (src1w) { \ |
| PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \ |
| src1 = TMP_REG1; \ |
| } \ |
| else \ |
| src1 = 0; \ |
| } |
| |
| #define RESOLVE_IMM2() \ |
| if (src2 & SLJIT_IMM) { \ |
| if (src2w) { \ |
| PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \ |
| src2 = TMP_REG2; \ |
| } \ |
| else \ |
| src2 = 0; \ |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, int type, |
| int src1, sljit_w src1w, |
| int src2, sljit_w src2w) |
| { |
| struct sljit_jump *jump; |
| int flags; |
| sljit_ins inst; |
| |
| CHECK_ERROR_PTR(); |
| check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w); |
| |
| compiler->cache_arg = 0; |
| compiler->cache_argw = 0; |
| flags = ((type & SLJIT_INT_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA; |
| if (src1 & SLJIT_MEM) { |
| if (getput_arg_fast(compiler, flags, DR(TMP_REG1), src1, src1w)) |
| PTR_FAIL_IF(compiler->error); |
| else |
| PTR_FAIL_IF(getput_arg(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w)); |
| src1 = TMP_REG1; |
| } |
| if (src2 & SLJIT_MEM) { |
| if (getput_arg_fast(compiler, flags, DR(TMP_REG2), src2, src2w)) |
| PTR_FAIL_IF(compiler->error); |
| else |
| PTR_FAIL_IF(getput_arg(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0)); |
| src2 = TMP_REG2; |
| } |
| |
| jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); |
| PTR_FAIL_IF(!jump); |
| set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); |
| type &= 0xff; |
| |
| if (type <= SLJIT_C_NOT_EQUAL) { |
| RESOLVE_IMM1(); |
| RESOLVE_IMM2(); |
| jump->flags |= IS_BIT26_COND; |
| if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2))) |
| jump->flags |= IS_MOVABLE; |
| PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS)); |
| } |
| else if (type >= SLJIT_C_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) { |
| inst = NOP; |
| if ((src1 & SLJIT_IMM) && (src1w == 0)) { |
| RESOLVE_IMM2(); |
| switch (type) { |
| case SLJIT_C_SIG_LESS: |
| inst = BLEZ; |
| jump->flags |= IS_BIT26_COND; |
| break; |
| case SLJIT_C_SIG_GREATER_EQUAL: |
| inst = BGTZ; |
| jump->flags |= IS_BIT26_COND; |
| break; |
| case SLJIT_C_SIG_GREATER: |
| inst = BGEZ; |
| jump->flags |= IS_BIT16_COND; |
| break; |
| case SLJIT_C_SIG_LESS_EQUAL: |
| inst = BLTZ; |
| jump->flags |= IS_BIT16_COND; |
| break; |
| } |
| src1 = src2; |
| } |
| else { |
| RESOLVE_IMM1(); |
| switch (type) { |
| case SLJIT_C_SIG_LESS: |
| inst = BGEZ; |
| jump->flags |= IS_BIT16_COND; |
| break; |
| case SLJIT_C_SIG_GREATER_EQUAL: |
| inst = BLTZ; |
| jump->flags |= IS_BIT16_COND; |
| break; |
| case SLJIT_C_SIG_GREATER: |
| inst = BLEZ; |
| jump->flags |= IS_BIT26_COND; |
| break; |
| case SLJIT_C_SIG_LESS_EQUAL: |
| inst = BGTZ; |
| jump->flags |= IS_BIT26_COND; |
| break; |
| } |
| } |
| PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS)); |
| } |
| else { |
| if (type == SLJIT_C_LESS || type == SLJIT_C_GREATER_EQUAL || type == SLJIT_C_SIG_LESS || type == SLJIT_C_SIG_GREATER_EQUAL) { |
| RESOLVE_IMM1(); |
| if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN) |
| PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1))); |
| else { |
| RESOLVE_IMM2(); |
| PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1))); |
| } |
| type = (type == SLJIT_C_LESS || type == SLJIT_C_SIG_LESS) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL; |
| } |
| else { |
| RESOLVE_IMM2(); |
| if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN) |
| PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1))); |
| else { |
| RESOLVE_IMM1(); |
| PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1))); |
| } |
| type = (type == SLJIT_C_GREATER || type == SLJIT_C_SIG_GREATER) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL; |
| } |
| |
| jump->flags |= IS_BIT26_COND; |
| PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS)); |
| } |
| |
| PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0)); |
| PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS)); |
| jump->addr = compiler->size; |
| PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); |
| return jump; |
| } |
| |
| #undef RESOLVE_IMM1 |
| #undef RESOLVE_IMM2 |
| |
| #undef JUMP_LENGTH |
| #undef BR_Z |
| #undef BR_NZ |
| #undef BR_T |
| #undef BR_F |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw) |
| { |
| int src_r = TMP_REG2; |
| struct sljit_jump *jump = NULL; |
| |
| CHECK_ERROR(); |
| check_sljit_emit_ijump(compiler, type, src, srcw); |
| |
| if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) { |
| if (DR(src) != 4) |
| src_r = src; |
| else |
| FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); |
| } |
| |
| if (type >= SLJIT_CALL0) { |
| SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2); |
| if (src & (SLJIT_IMM | SLJIT_MEM)) { |
| if (src & SLJIT_IMM) |
| FAIL_IF(load_immediate(compiler, DR(PIC_ADDR_REG), srcw)); |
| else { |
| SLJIT_ASSERT(src_r == TMP_REG2 && (src & SLJIT_MEM)); |
| FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); |
| } |
| FAIL_IF(push_inst(compiler, JALR | S(PIC_ADDR_REG) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); |
| /* We need an extra instruction in any case. */ |
| return push_inst(compiler, ADDU_W | S(SLJIT_TEMPORARY_REG1) | TA(0) | DA(4), UNMOVABLE_INS); |
| } |
| |
| /* Register input. */ |
| if (type >= SLJIT_CALL1) |
| FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_TEMPORARY_REG1) | TA(0) | DA(4), 4)); |
| FAIL_IF(push_inst(compiler, JALR | S(src_r) | DA(RETURN_ADDR_REG), UNMOVABLE_INS)); |
| return push_inst(compiler, ADDU_W | S(src_r) | TA(0) | D(PIC_ADDR_REG), UNMOVABLE_INS); |
| } |
| |
| if (src & SLJIT_IMM) { |
| jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); |
| FAIL_IF(!jump); |
| set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_JAL : 0)); |
| jump->u.target = srcw; |
| |
| if (compiler->delay_slot != UNMOVABLE_INS) |
| jump->flags |= IS_MOVABLE; |
| |
| FAIL_IF(emit_const(compiler, TMP_REG2, 0)); |
| } |
| else if (src & SLJIT_MEM) |
| FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw)); |
| |
| FAIL_IF(push_inst(compiler, JR | S(src_r), UNMOVABLE_INS)); |
| if (jump) |
| jump->addr = compiler->size; |
| FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); |
| return SLJIT_SUCCESS; |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type) |
| { |
| int sugg_dst_ar, dst_ar; |
| |
| CHECK_ERROR(); |
| check_sljit_emit_cond_value(compiler, op, dst, dstw, type); |
| |
| if (dst == SLJIT_UNUSED) |
| return SLJIT_SUCCESS; |
| |
| sugg_dst_ar = DR((op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2); |
| |
| switch (type) { |
| case SLJIT_C_EQUAL: |
| case SLJIT_C_NOT_EQUAL: |
| FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); |
| dst_ar = sugg_dst_ar; |
| break; |
| case SLJIT_C_LESS: |
| case SLJIT_C_GREATER_EQUAL: |
| case SLJIT_C_FLOAT_LESS: |
| case SLJIT_C_FLOAT_GREATER_EQUAL: |
| dst_ar = ULESS_FLAG; |
| break; |
| case SLJIT_C_GREATER: |
| case SLJIT_C_LESS_EQUAL: |
| case SLJIT_C_FLOAT_GREATER: |
| case SLJIT_C_FLOAT_LESS_EQUAL: |
| dst_ar = UGREATER_FLAG; |
| break; |
| case SLJIT_C_SIG_LESS: |
| case SLJIT_C_SIG_GREATER_EQUAL: |
| dst_ar = LESS_FLAG; |
| break; |
| case SLJIT_C_SIG_GREATER: |
| case SLJIT_C_SIG_LESS_EQUAL: |
| dst_ar = GREATER_FLAG; |
| break; |
| case SLJIT_C_OVERFLOW: |
| case SLJIT_C_NOT_OVERFLOW: |
| dst_ar = OVERFLOW_FLAG; |
| break; |
| case SLJIT_C_MUL_OVERFLOW: |
| case SLJIT_C_MUL_NOT_OVERFLOW: |
| FAIL_IF(push_inst(compiler, SLTIU | SA(OVERFLOW_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); |
| dst_ar = sugg_dst_ar; |
| type ^= 0x1; /* Flip type bit for the XORI below. */ |
| break; |
| case SLJIT_C_FLOAT_EQUAL: |
| case SLJIT_C_FLOAT_NOT_EQUAL: |
| dst_ar = EQUAL_FLAG; |
| break; |
| |
| case SLJIT_C_FLOAT_NAN: |
| case SLJIT_C_FLOAT_NOT_NAN: |
| FAIL_IF(push_inst(compiler, CFC1 | TA(sugg_dst_ar) | DA(FCSR_REG), sugg_dst_ar)); |
| FAIL_IF(push_inst(compiler, SRL | TA(sugg_dst_ar) | DA(sugg_dst_ar) | SH_IMM(23), sugg_dst_ar)); |
| FAIL_IF(push_inst(compiler, ANDI | SA(sugg_dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); |
| dst_ar = sugg_dst_ar; |
| break; |
| |
| default: |
| SLJIT_ASSERT_STOP(); |
| dst_ar = sugg_dst_ar; |
| break; |
| } |
| |
| if (type & 0x1) { |
| FAIL_IF(push_inst(compiler, XORI | SA(dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar)); |
| dst_ar = sugg_dst_ar; |
| } |
| |
| if (GET_OPCODE(op) == SLJIT_OR) { |
| if (DR(TMP_REG2) != dst_ar) |
| FAIL_IF(push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2))); |
| return emit_op(compiler, op, CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, dst, dstw, TMP_REG2, 0); |
| } |
| |
| if (dst & SLJIT_MEM) |
| return emit_op_mem(compiler, WORD_DATA, dst_ar, dst, dstw); |
| |
| if (sugg_dst_ar != dst_ar) |
| return push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | DA(sugg_dst_ar), sugg_dst_ar); |
| return SLJIT_SUCCESS; |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value) |
| { |
| struct sljit_const *const_; |
| int reg; |
| |
| CHECK_ERROR_PTR(); |
| check_sljit_emit_const(compiler, dst, dstw, init_value); |
| |
| const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const)); |
| PTR_FAIL_IF(!const_); |
| set_const(const_, compiler); |
| |
| reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2; |
| |
| PTR_FAIL_IF(emit_const(compiler, reg, init_value)); |
| |
| if (dst & SLJIT_MEM) |
| PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0)); |
| return const_; |
| } |