diff options
Diffstat (limited to 'src/3rdparty/pcre/sljit/sljitNativeMIPS_common.c')
| -rw-r--r-- | src/3rdparty/pcre/sljit/sljitNativeMIPS_common.c | 1829 |
1 files changed, 1829 insertions, 0 deletions
diff --git a/src/3rdparty/pcre/sljit/sljitNativeMIPS_common.c b/src/3rdparty/pcre/sljit/sljitNativeMIPS_common.c new file mode 100644 index 0000000000..3c6ee663e1 --- /dev/null +++ b/src/3rdparty/pcre/sljit/sljitNativeMIPS_common.c @@ -0,0 +1,1829 @@ +/* + * Stack-less Just-In-Time compiler + * + * Copyright 2009-2012 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() +{ + return "MIPS" SLJIT_CPUINFO; +} + +/* 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_ULE_D (HI(17) | FMT_D | LO(55)) +#define C_ULT_D (HI(17) | FMT_D | LO(53)) +#define DIV (HI(0) | LO(26)) +#define DIVU (HI(0) | LO(27)) +#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 MULTU (HI(0) | LO(25)) +#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 saveds, int local_size) +{ + sljit_ins base; + + CHECK_ERROR(); + check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size); + + compiler->temporaries = temporaries; + compiler->saveds = saveds; + + compiler->has_locals = local_size > 0; + local_size += (saveds + 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 (saveds >= 1) + FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_REG1) | IMM(local_size - 3 * (int)sizeof(sljit_w)), MOVABLE_INS)); + if (saveds >= 2) + FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_REG2) | IMM(local_size - 4 * (int)sizeof(sljit_w)), MOVABLE_INS)); + if (saveds >= 3) + FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_REG3) | IMM(local_size - 5 * (int)sizeof(sljit_w)), MOVABLE_INS)); + if (saveds >= 4) + FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_EREG1) | IMM(local_size - 6 * (int)sizeof(sljit_w)), MOVABLE_INS)); + if (saveds >= 5) + FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_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_SAVED_REG1), DR(SLJIT_SAVED_REG1))); + if (args >= 2) + FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_SAVED_REG2), DR(SLJIT_SAVED_REG2))); + if (args >= 3) + FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_SAVED_REG3), DR(SLJIT_SAVED_REG3))); + + return SLJIT_SUCCESS; +} + +SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size) +{ + CHECK_ERROR_VOID(); + check_sljit_set_context(compiler, args, temporaries, saveds, local_size); + + compiler->temporaries = temporaries; + compiler->saveds = saveds; + + compiler->has_locals = local_size > 0; + local_size += (saveds + 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 op, int src, sljit_w srcw) +{ + int local_size; + sljit_ins base; + + CHECK_ERROR(); + check_sljit_emit_return(compiler, op, src, srcw); + + FAIL_IF(emit_mov_before_return(compiler, op, src, srcw)); + + local_size = compiler->local_size; + 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->saveds >= 5) + FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_EREG2) | IMM(local_size - 7 * (int)sizeof(sljit_w)), DR(SLJIT_SAVED_EREG2))); + if (compiler->saveds >= 4) + FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_EREG1) | IMM(local_size - 6 * (int)sizeof(sljit_w)), DR(SLJIT_SAVED_EREG1))); + if (compiler->saveds >= 3) + FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_REG3) | IMM(local_size - 5 * (int)sizeof(sljit_w)), DR(SLJIT_SAVED_REG3))); + if (compiler->saveds >= 2) + FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_REG2) | IMM(local_size - 4 * (int)sizeof(sljit_w)), DR(SLJIT_SAVED_REG2))); + if (compiler->saveds >= 1) + FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_REG1) | IMM(local_size - 3 * (int)sizeof(sljit_w)), DR(SLJIT_SAVED_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); + case SLJIT_UMUL: + case SLJIT_SMUL: + FAIL_IF(push_inst(compiler, (op == SLJIT_UMUL ? MULTU : MULT) | S(SLJIT_TEMPORARY_REG1) | T(SLJIT_TEMPORARY_REG2), MOVABLE_INS)); + FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_TEMPORARY_REG1), DR(SLJIT_TEMPORARY_REG1))); + return push_inst(compiler, MFHI | D(SLJIT_TEMPORARY_REG2), DR(SLJIT_TEMPORARY_REG2)); + case SLJIT_UDIV: + case SLJIT_SDIV: +#if !(defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) + FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); + FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS)); +#endif + FAIL_IF(push_inst(compiler, (op == SLJIT_UDIV ? DIVU : DIV) | S(SLJIT_TEMPORARY_REG1) | T(SLJIT_TEMPORARY_REG2), MOVABLE_INS)); + FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_TEMPORARY_REG1), DR(SLJIT_TEMPORARY_REG1))); + return push_inst(compiler, MFHI | D(SLJIT_TEMPORARY_REG2), DR(SLJIT_TEMPORARY_REG2)); + } + + 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 +} + +SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg) +{ + check_sljit_get_register_index(reg); + return reg_map[reg]; +} + +SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler, + void *instruction, int size) +{ + CHECK_ERROR(); + check_sljit_emit_op_custom(compiler, instruction, size); + SLJIT_ASSERT(size == 4); + + return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS); +} + +/* --------------------------------------------------------------------- */ +/* 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 saveds, int local_size) +{ + CHECK_ERROR(); + check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, saveds, local_size); + + compiler->temporaries = temporaries; + compiler->saveds = saveds; + + compiler->has_locals = local_size > 0; + local_size += (saveds + 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 + +SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_fcmp(struct sljit_compiler *compiler, int type, + int src1, sljit_w src1w, + int src2, sljit_w src2w) +{ + struct sljit_jump *jump; + sljit_ins inst; + int if_true; + + CHECK_ERROR_PTR(); + check_sljit_emit_fcmp(compiler, type, src1, src1w, src2, src2w); + + compiler->cache_arg = 0; + compiler->cache_argw = 0; + + if (src1 > SLJIT_FLOAT_REG4) { + PTR_FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w)); + src1 = TMP_FREG1; + } + if (src2 > SLJIT_FLOAT_REG4) { + PTR_FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w)); + src2 = TMP_FREG2; + } + + jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump)); + PTR_FAIL_IF(!jump); + set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP); + jump->flags |= IS_BIT16_COND; + type &= 0xff; + + switch (type) { + case SLJIT_C_FLOAT_EQUAL: + inst = C_UEQ_D; + if_true = 1; + break; + case SLJIT_C_FLOAT_NOT_EQUAL: + inst = C_UEQ_D; + if_true = 0; + break; + case SLJIT_C_FLOAT_LESS: + inst = C_ULT_D; + if_true = 1; + break; + case SLJIT_C_FLOAT_GREATER_EQUAL: + inst = C_ULT_D; + if_true = 0; + break; + case SLJIT_C_FLOAT_GREATER: + inst = C_ULE_D; + if_true = 0; + break; + case SLJIT_C_FLOAT_LESS_EQUAL: + inst = C_ULE_D; + if_true = 1; + break; + case SLJIT_C_FLOAT_NAN: + inst = C_UN_D; + if_true = 1; + break; + case SLJIT_C_FLOAT_NOT_NAN: + default: /* Make compilers happy. */ + inst = C_UN_D; + if_true = 0; + break; + } + + PTR_FAIL_IF(push_inst(compiler, inst | FT(src2) | FS(src1), UNMOVABLE_INS)); + /* Intentionally the other opcode. */ + PTR_FAIL_IF(push_inst(compiler, (if_true ? BC1F : BC1T) | 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 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_; +} |