--- /dev/null
+/*
+ * Stack-less Just-In-Time compiler
+ *
+ * Copyright 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.
+ */
+
+#ifdef __SOFTFP__
+#define ARM_ABI_INFO " ABI:softfp"
+#else
+#define ARM_ABI_INFO " ABI:hardfp"
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void)
+{
+#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+ return "ARMv7" SLJIT_CPUINFO ARM_ABI_INFO;
+#elif (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ return "ARMv5" SLJIT_CPUINFO ARM_ABI_INFO;
+#else
+#error "Internal error: Unknown ARM architecture"
+#endif
+}
+
+/* Last register + 1. */
+#define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2)
+#define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3)
+#define TMP_PC (SLJIT_NUMBER_OF_REGISTERS + 4)
+
+#define TMP_FREG1 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
+#define TMP_FREG2 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)
+
+/* In ARM instruction words.
+ Cache lines are usually 32 byte aligned. */
+#define CONST_POOL_ALIGNMENT 8
+#define CONST_POOL_EMPTY 0xffffffff
+
+#define ALIGN_INSTRUCTION(ptr) \
+ (sljit_uw*)(((sljit_uw)(ptr) + (CONST_POOL_ALIGNMENT * sizeof(sljit_uw)) - 1) & ~((CONST_POOL_ALIGNMENT * sizeof(sljit_uw)) - 1))
+#define MAX_DIFFERENCE(max_diff) \
+ (((max_diff) / (sljit_s32)sizeof(sljit_uw)) - (CONST_POOL_ALIGNMENT - 1))
+
+/* See sljit_emit_enter and sljit_emit_op0 if you want to change them. */
+static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 5] = {
+ 0, 0, 1, 2, 3, 11, 10, 9, 8, 7, 6, 5, 4, 13, 12, 14, 15
+};
+
+static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = {
+ 0, 0, 1, 2, 3, 4, 5, 6, 7
+};
+
+#define RM(rm) (reg_map[rm])
+#define RD(rd) (reg_map[rd] << 12)
+#define RN(rn) (reg_map[rn] << 16)
+
+/* --------------------------------------------------------------------- */
+/* Instrucion forms */
+/* --------------------------------------------------------------------- */
+
+/* The instruction includes the AL condition.
+ INST_NAME - CONDITIONAL remove this flag. */
+#define COND_MASK 0xf0000000
+#define CONDITIONAL 0xe0000000
+#define PUSH_POOL 0xff000000
+
+#define ADC 0xe0a00000
+#define ADD 0xe0800000
+#define AND 0xe0000000
+#define B 0xea000000
+#define BIC 0xe1c00000
+#define BL 0xeb000000
+#define BLX 0xe12fff30
+#define BX 0xe12fff10
+#define CLZ 0xe16f0f10
+#define CMN 0xe1600000
+#define CMP 0xe1400000
+#define BKPT 0xe1200070
+#define EOR 0xe0200000
+#define MOV 0xe1a00000
+#define MUL 0xe0000090
+#define MVN 0xe1e00000
+#define NOP 0xe1a00000
+#define ORR 0xe1800000
+#define PUSH 0xe92d0000
+#define POP 0xe8bd0000
+#define RSB 0xe0600000
+#define RSC 0xe0e00000
+#define SBC 0xe0c00000
+#define SMULL 0xe0c00090
+#define SUB 0xe0400000
+#define UMULL 0xe0800090
+#define VABS_F32 0xeeb00ac0
+#define VADD_F32 0xee300a00
+#define VCMP_F32 0xeeb40a40
+#define VCVT_F32_S32 0xeeb80ac0
+#define VCVT_F64_F32 0xeeb70ac0
+#define VCVT_S32_F32 0xeebd0ac0
+#define VDIV_F32 0xee800a00
+#define VMOV_F32 0xeeb00a40
+#define VMOV 0xee000a10
+#define VMOV2 0xec400a10
+#define VMRS 0xeef1fa10
+#define VMUL_F32 0xee200a00
+#define VNEG_F32 0xeeb10a40
+#define VSTR_F32 0xed000a00
+#define VSUB_F32 0xee300a40
+
+#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+/* Arm v7 specific instructions. */
+#define MOVW 0xe3000000
+#define MOVT 0xe3400000
+#define SXTB 0xe6af0070
+#define SXTH 0xe6bf0070
+#define UXTB 0xe6ef0070
+#define UXTH 0xe6ff0070
+#endif
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+
+static sljit_s32 push_cpool(struct sljit_compiler *compiler)
+{
+ /* Pushing the constant pool into the instruction stream. */
+ sljit_uw* inst;
+ sljit_uw* cpool_ptr;
+ sljit_uw* cpool_end;
+ sljit_s32 i;
+
+ /* The label could point the address after the constant pool. */
+ if (compiler->last_label && compiler->last_label->size == compiler->size)
+ compiler->last_label->size += compiler->cpool_fill + (CONST_POOL_ALIGNMENT - 1) + 1;
+
+ SLJIT_ASSERT(compiler->cpool_fill > 0 && compiler->cpool_fill <= CPOOL_SIZE);
+ inst = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+ FAIL_IF(!inst);
+ compiler->size++;
+ *inst = 0xff000000 | compiler->cpool_fill;
+
+ for (i = 0; i < CONST_POOL_ALIGNMENT - 1; i++) {
+ inst = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+ FAIL_IF(!inst);
+ compiler->size++;
+ *inst = 0;
+ }
+
+ cpool_ptr = compiler->cpool;
+ cpool_end = cpool_ptr + compiler->cpool_fill;
+ while (cpool_ptr < cpool_end) {
+ inst = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+ FAIL_IF(!inst);
+ compiler->size++;
+ *inst = *cpool_ptr++;
+ }
+ compiler->cpool_diff = CONST_POOL_EMPTY;
+ compiler->cpool_fill = 0;
+ return SLJIT_SUCCESS;
+}
+
+static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_uw inst)
+{
+ sljit_uw* ptr;
+
+ if (SLJIT_UNLIKELY(compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4092)))
+ FAIL_IF(push_cpool(compiler));
+
+ ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+ FAIL_IF(!ptr);
+ compiler->size++;
+ *ptr = inst;
+ return SLJIT_SUCCESS;
+}
+
+static sljit_s32 push_inst_with_literal(struct sljit_compiler *compiler, sljit_uw inst, sljit_uw literal)
+{
+ sljit_uw* ptr;
+ sljit_uw cpool_index = CPOOL_SIZE;
+ sljit_uw* cpool_ptr;
+ sljit_uw* cpool_end;
+ sljit_u8* cpool_unique_ptr;
+
+ if (SLJIT_UNLIKELY(compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4092)))
+ FAIL_IF(push_cpool(compiler));
+ else if (compiler->cpool_fill > 0) {
+ cpool_ptr = compiler->cpool;
+ cpool_end = cpool_ptr + compiler->cpool_fill;
+ cpool_unique_ptr = compiler->cpool_unique;
+ do {
+ if ((*cpool_ptr == literal) && !(*cpool_unique_ptr)) {
+ cpool_index = cpool_ptr - compiler->cpool;
+ break;
+ }
+ cpool_ptr++;
+ cpool_unique_ptr++;
+ } while (cpool_ptr < cpool_end);
+ }
+
+ if (cpool_index == CPOOL_SIZE) {
+ /* Must allocate a new entry in the literal pool. */
+ if (compiler->cpool_fill < CPOOL_SIZE) {
+ cpool_index = compiler->cpool_fill;
+ compiler->cpool_fill++;
+ }
+ else {
+ FAIL_IF(push_cpool(compiler));
+ cpool_index = 0;
+ compiler->cpool_fill = 1;
+ }
+ }
+
+ SLJIT_ASSERT((inst & 0xfff) == 0);
+ ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+ FAIL_IF(!ptr);
+ compiler->size++;
+ *ptr = inst | cpool_index;
+
+ compiler->cpool[cpool_index] = literal;
+ compiler->cpool_unique[cpool_index] = 0;
+ if (compiler->cpool_diff == CONST_POOL_EMPTY)
+ compiler->cpool_diff = compiler->size;
+ return SLJIT_SUCCESS;
+}
+
+static sljit_s32 push_inst_with_unique_literal(struct sljit_compiler *compiler, sljit_uw inst, sljit_uw literal)
+{
+ sljit_uw* ptr;
+ if (SLJIT_UNLIKELY((compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4092)) || compiler->cpool_fill >= CPOOL_SIZE))
+ FAIL_IF(push_cpool(compiler));
+
+ SLJIT_ASSERT(compiler->cpool_fill < CPOOL_SIZE && (inst & 0xfff) == 0);
+ ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+ FAIL_IF(!ptr);
+ compiler->size++;
+ *ptr = inst | compiler->cpool_fill;
+
+ compiler->cpool[compiler->cpool_fill] = literal;
+ compiler->cpool_unique[compiler->cpool_fill] = 1;
+ compiler->cpool_fill++;
+ if (compiler->cpool_diff == CONST_POOL_EMPTY)
+ compiler->cpool_diff = compiler->size;
+ return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE sljit_s32 prepare_blx(struct sljit_compiler *compiler)
+{
+ /* Place for at least two instruction (doesn't matter whether the first has a literal). */
+ if (SLJIT_UNLIKELY(compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4088)))
+ return push_cpool(compiler);
+ return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE sljit_s32 emit_blx(struct sljit_compiler *compiler)
+{
+ /* Must follow tightly the previous instruction (to be able to convert it to bl instruction). */
+ SLJIT_ASSERT(compiler->cpool_diff == CONST_POOL_EMPTY || compiler->size - compiler->cpool_diff < MAX_DIFFERENCE(4092));
+ SLJIT_ASSERT(reg_map[TMP_REG1] != 14);
+
+ return push_inst(compiler, BLX | RM(TMP_REG1));
+}
+
+static sljit_uw patch_pc_relative_loads(sljit_uw *last_pc_patch, sljit_uw *code_ptr, sljit_uw* const_pool, sljit_uw cpool_size)
+{
+ sljit_uw diff;
+ sljit_uw ind;
+ sljit_uw counter = 0;
+ sljit_uw* clear_const_pool = const_pool;
+ sljit_uw* clear_const_pool_end = const_pool + cpool_size;
+
+ SLJIT_ASSERT(const_pool - code_ptr <= CONST_POOL_ALIGNMENT);
+ /* Set unused flag for all literals in the constant pool.
+ I.e.: unused literals can belong to branches, which can be encoded as B or BL.
+ We can "compress" the constant pool by discarding these literals. */
+ while (clear_const_pool < clear_const_pool_end)
+ *clear_const_pool++ = (sljit_uw)(-1);
+
+ while (last_pc_patch < code_ptr) {
+ /* Data transfer instruction with Rn == r15. */
+ if ((*last_pc_patch & 0x0c0f0000) == 0x040f0000) {
+ diff = const_pool - last_pc_patch;
+ ind = (*last_pc_patch) & 0xfff;
+
+ /* Must be a load instruction with immediate offset. */
+ SLJIT_ASSERT(ind < cpool_size && !(*last_pc_patch & (1 << 25)) && (*last_pc_patch & (1 << 20)));
+ if ((sljit_s32)const_pool[ind] < 0) {
+ const_pool[ind] = counter;
+ ind = counter;
+ counter++;
+ }
+ else
+ ind = const_pool[ind];
+
+ SLJIT_ASSERT(diff >= 1);
+ if (diff >= 2 || ind > 0) {
+ diff = (diff + ind - 2) << 2;
+ SLJIT_ASSERT(diff <= 0xfff);
+ *last_pc_patch = (*last_pc_patch & ~0xfff) | diff;
+ }
+ else
+ *last_pc_patch = (*last_pc_patch & ~(0xfff | (1 << 23))) | 0x004;
+ }
+ last_pc_patch++;
+ }
+ return counter;
+}
+
+/* In some rare ocasions we may need future patches. The probability is close to 0 in practice. */
+struct future_patch {
+ struct future_patch* next;
+ sljit_s32 index;
+ sljit_s32 value;
+};
+
+static sljit_s32 resolve_const_pool_index(struct sljit_compiler *compiler, struct future_patch **first_patch, sljit_uw cpool_current_index, sljit_uw *cpool_start_address, sljit_uw *buf_ptr)
+{
+ sljit_s32 value;
+ struct future_patch *curr_patch, *prev_patch;
+
+ SLJIT_UNUSED_ARG(compiler);
+
+ /* Using the values generated by patch_pc_relative_loads. */
+ if (!*first_patch)
+ value = (sljit_s32)cpool_start_address[cpool_current_index];
+ else {
+ curr_patch = *first_patch;
+ prev_patch = NULL;
+ while (1) {
+ if (!curr_patch) {
+ value = (sljit_s32)cpool_start_address[cpool_current_index];
+ break;
+ }
+ if ((sljit_uw)curr_patch->index == cpool_current_index) {
+ value = curr_patch->value;
+ if (prev_patch)
+ prev_patch->next = curr_patch->next;
+ else
+ *first_patch = curr_patch->next;
+ SLJIT_FREE(curr_patch, compiler->allocator_data);
+ break;
+ }
+ prev_patch = curr_patch;
+ curr_patch = curr_patch->next;
+ }
+ }
+
+ if (value >= 0) {
+ if ((sljit_uw)value > cpool_current_index) {
+ curr_patch = (struct future_patch*)SLJIT_MALLOC(sizeof(struct future_patch), compiler->allocator_data);
+ if (!curr_patch) {
+ while (*first_patch) {
+ curr_patch = *first_patch;
+ *first_patch = (*first_patch)->next;
+ SLJIT_FREE(curr_patch, compiler->allocator_data);
+ }
+ return SLJIT_ERR_ALLOC_FAILED;
+ }
+ curr_patch->next = *first_patch;
+ curr_patch->index = value;
+ curr_patch->value = cpool_start_address[value];
+ *first_patch = curr_patch;
+ }
+ cpool_start_address[value] = *buf_ptr;
+ }
+ return SLJIT_SUCCESS;
+}
+
+#else
+
+static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_uw inst)
+{
+ sljit_uw* ptr;
+
+ ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+ FAIL_IF(!ptr);
+ compiler->size++;
+ *ptr = inst;
+ return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE sljit_s32 emit_imm(struct sljit_compiler *compiler, sljit_s32 reg, sljit_sw imm)
+{
+ FAIL_IF(push_inst(compiler, MOVW | RD(reg) | ((imm << 4) & 0xf0000) | (imm & 0xfff)));
+ return push_inst(compiler, MOVT | RD(reg) | ((imm >> 12) & 0xf0000) | ((imm >> 16) & 0xfff));
+}
+
+#endif
+
+static SLJIT_INLINE sljit_s32 detect_jump_type(struct sljit_jump *jump, sljit_uw *code_ptr, sljit_uw *code, sljit_sw executable_offset)
+{
+ sljit_sw diff;
+
+ if (jump->flags & SLJIT_REWRITABLE_JUMP)
+ return 0;
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ if (jump->flags & IS_BL)
+ code_ptr--;
+
+ if (jump->flags & JUMP_ADDR)
+ diff = ((sljit_sw)jump->u.target - (sljit_sw)(code_ptr + 2) - executable_offset);
+ else {
+ SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+ diff = ((sljit_sw)(code + jump->u.label->size) - (sljit_sw)(code_ptr + 2));
+ }
+
+ /* Branch to Thumb code has not been optimized yet. */
+ if (diff & 0x3)
+ return 0;
+
+ if (jump->flags & IS_BL) {
+ if (diff <= 0x01ffffff && diff >= -0x02000000) {
+ *code_ptr = (BL - CONDITIONAL) | (*(code_ptr + 1) & COND_MASK);
+ jump->flags |= PATCH_B;
+ return 1;
+ }
+ }
+ else {
+ if (diff <= 0x01ffffff && diff >= -0x02000000) {
+ *code_ptr = (B - CONDITIONAL) | (*code_ptr & COND_MASK);
+ jump->flags |= PATCH_B;
+ }
+ }
+#else
+ if (jump->flags & JUMP_ADDR)
+ diff = ((sljit_sw)jump->u.target - (sljit_sw)code_ptr - executable_offset);
+ else {
+ SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+ diff = ((sljit_sw)(code + jump->u.label->size) - (sljit_sw)code_ptr);
+ }
+
+ /* Branch to Thumb code has not been optimized yet. */
+ if (diff & 0x3)
+ return 0;
+
+ if (diff <= 0x01ffffff && diff >= -0x02000000) {
+ code_ptr -= 2;
+ *code_ptr = ((jump->flags & IS_BL) ? (BL - CONDITIONAL) : (B - CONDITIONAL)) | (code_ptr[2] & COND_MASK);
+ jump->flags |= PATCH_B;
+ return 1;
+ }
+#endif
+ return 0;
+}
+
+static SLJIT_INLINE void inline_set_jump_addr(sljit_uw jump_ptr, sljit_sw executable_offset, sljit_uw new_addr, sljit_s32 flush_cache)
+{
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ sljit_uw *ptr = (sljit_uw *)jump_ptr;
+ sljit_uw *inst = (sljit_uw *)ptr[0];
+ sljit_uw mov_pc = ptr[1];
+ sljit_s32 bl = (mov_pc & 0x0000f000) != RD(TMP_PC);
+ sljit_sw diff = (sljit_sw)(((sljit_sw)new_addr - (sljit_sw)(inst + 2) - executable_offset) >> 2);
+
+ if (diff <= 0x7fffff && diff >= -0x800000) {
+ /* Turn to branch. */
+ if (!bl) {
+ inst[0] = (mov_pc & COND_MASK) | (B - CONDITIONAL) | (diff & 0xffffff);
+ if (flush_cache) {
+ inst = (sljit_uw *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 1);
+ }
+ } else {
+ inst[0] = (mov_pc & COND_MASK) | (BL - CONDITIONAL) | (diff & 0xffffff);
+ inst[1] = NOP;
+ if (flush_cache) {
+ inst = (sljit_uw *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 2);
+ }
+ }
+ } else {
+ /* Get the position of the constant. */
+ if (mov_pc & (1 << 23))
+ ptr = inst + ((mov_pc & 0xfff) >> 2) + 2;
+ else
+ ptr = inst + 1;
+
+ if (*inst != mov_pc) {
+ inst[0] = mov_pc;
+ if (!bl) {
+ if (flush_cache) {
+ inst = (sljit_uw *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 1);
+ }
+ } else {
+ inst[1] = BLX | RM(TMP_REG1);
+ if (flush_cache) {
+ inst = (sljit_uw *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 2);
+ }
+ }
+ }
+ *ptr = new_addr;
+ }
+#else
+ sljit_uw *inst = (sljit_uw*)jump_ptr;
+ SLJIT_ASSERT((inst[0] & 0xfff00000) == MOVW && (inst[1] & 0xfff00000) == MOVT);
+ inst[0] = MOVW | (inst[0] & 0xf000) | ((new_addr << 4) & 0xf0000) | (new_addr & 0xfff);
+ inst[1] = MOVT | (inst[1] & 0xf000) | ((new_addr >> 12) & 0xf0000) | ((new_addr >> 16) & 0xfff);
+ if (flush_cache) {
+ inst = (sljit_uw *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 2);
+ }
+#endif
+}
+
+static sljit_uw get_imm(sljit_uw imm);
+
+static SLJIT_INLINE void inline_set_const(sljit_uw addr, sljit_sw executable_offset, sljit_sw new_constant, sljit_s32 flush_cache)
+{
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ sljit_uw *ptr = (sljit_uw*)addr;
+ sljit_uw *inst = (sljit_uw*)ptr[0];
+ sljit_uw ldr_literal = ptr[1];
+ sljit_uw src2;
+
+ src2 = get_imm(new_constant);
+ if (src2) {
+ *inst = 0xe3a00000 | (ldr_literal & 0xf000) | src2;
+ if (flush_cache) {
+ inst = (sljit_uw *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 1);
+ }
+ return;
+ }
+
+ src2 = get_imm(~new_constant);
+ if (src2) {
+ *inst = 0xe3e00000 | (ldr_literal & 0xf000) | src2;
+ if (flush_cache) {
+ inst = (sljit_uw *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 1);
+ }
+ return;
+ }
+
+ if (ldr_literal & (1 << 23))
+ ptr = inst + ((ldr_literal & 0xfff) >> 2) + 2;
+ else
+ ptr = inst + 1;
+
+ if (*inst != ldr_literal) {
+ *inst = ldr_literal;
+ if (flush_cache) {
+ inst = (sljit_uw *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 1);
+ }
+ }
+ *ptr = new_constant;
+#else
+ sljit_uw *inst = (sljit_uw*)addr;
+ SLJIT_ASSERT((inst[0] & 0xfff00000) == MOVW && (inst[1] & 0xfff00000) == MOVT);
+ inst[0] = MOVW | (inst[0] & 0xf000) | ((new_constant << 4) & 0xf0000) | (new_constant & 0xfff);
+ inst[1] = MOVT | (inst[1] & 0xf000) | ((new_constant >> 12) & 0xf0000) | ((new_constant >> 16) & 0xfff);
+ if (flush_cache) {
+ inst = (sljit_uw *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 2);
+ }
+#endif
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
+{
+ struct sljit_memory_fragment *buf;
+ sljit_uw *code;
+ sljit_uw *code_ptr;
+ sljit_uw *buf_ptr;
+ sljit_uw *buf_end;
+ sljit_uw size;
+ sljit_uw word_count;
+ sljit_sw executable_offset;
+ sljit_sw jump_addr;
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ sljit_uw cpool_size;
+ sljit_uw cpool_skip_alignment;
+ sljit_uw cpool_current_index;
+ sljit_uw *cpool_start_address;
+ sljit_uw *last_pc_patch;
+ struct future_patch *first_patch;
+#endif
+
+ struct sljit_label *label;
+ struct sljit_jump *jump;
+ struct sljit_const *const_;
+
+ CHECK_ERROR_PTR();
+ CHECK_PTR(check_sljit_generate_code(compiler));
+ reverse_buf(compiler);
+
+ /* Second code generation pass. */
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ size = compiler->size + (compiler->patches << 1);
+ if (compiler->cpool_fill > 0)
+ size += compiler->cpool_fill + CONST_POOL_ALIGNMENT - 1;
+#else
+ size = compiler->size;
+#endif
+ code = (sljit_uw*)SLJIT_MALLOC_EXEC(size * sizeof(sljit_uw));
+ PTR_FAIL_WITH_EXEC_IF(code);
+ buf = compiler->buf;
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ cpool_size = 0;
+ cpool_skip_alignment = 0;
+ cpool_current_index = 0;
+ cpool_start_address = NULL;
+ first_patch = NULL;
+ last_pc_patch = code;
+#endif
+
+ code_ptr = code;
+ word_count = 0;
+ executable_offset = SLJIT_EXEC_OFFSET(code);
+
+ label = compiler->labels;
+ jump = compiler->jumps;
+ const_ = compiler->consts;
+
+ if (label && label->size == 0) {
+ label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
+ label = label->next;
+ }
+
+ do {
+ buf_ptr = (sljit_uw*)buf->memory;
+ buf_end = buf_ptr + (buf->used_size >> 2);
+ do {
+ word_count++;
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ if (cpool_size > 0) {
+ if (cpool_skip_alignment > 0) {
+ buf_ptr++;
+ cpool_skip_alignment--;
+ }
+ else {
+ if (SLJIT_UNLIKELY(resolve_const_pool_index(compiler, &first_patch, cpool_current_index, cpool_start_address, buf_ptr))) {
+ SLJIT_FREE_EXEC(code);
+ compiler->error = SLJIT_ERR_ALLOC_FAILED;
+ return NULL;
+ }
+ buf_ptr++;
+ if (++cpool_current_index >= cpool_size) {
+ SLJIT_ASSERT(!first_patch);
+ cpool_size = 0;
+ if (label && label->size == word_count) {
+ /* Points after the current instruction. */
+ label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
+ label->size = code_ptr - code;
+ label = label->next;
+ }
+ }
+ }
+ }
+ else if ((*buf_ptr & 0xff000000) != PUSH_POOL) {
+#endif
+ *code_ptr = *buf_ptr++;
+ /* These structures are ordered by their address. */
+ SLJIT_ASSERT(!label || label->size >= word_count);
+ SLJIT_ASSERT(!jump || jump->addr >= word_count);
+ SLJIT_ASSERT(!const_ || const_->addr >= word_count);
+ if (jump && jump->addr == word_count) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ if (detect_jump_type(jump, code_ptr, code, executable_offset))
+ code_ptr--;
+ jump->addr = (sljit_uw)code_ptr;
+#else
+ jump->addr = (sljit_uw)(code_ptr - 2);
+ if (detect_jump_type(jump, code_ptr, code, executable_offset))
+ code_ptr -= 2;
+#endif
+ jump = jump->next;
+ }
+ if (label && label->size == word_count) {
+ /* code_ptr can be affected above. */
+ label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr + 1, executable_offset);
+ label->size = (code_ptr + 1) - code;
+ label = label->next;
+ }
+ if (const_ && const_->addr == word_count) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ const_->addr = (sljit_uw)code_ptr;
+#else
+ const_->addr = (sljit_uw)(code_ptr - 1);
+#endif
+ const_ = const_->next;
+ }
+ code_ptr++;
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ }
+ else {
+ /* Fortunately, no need to shift. */
+ cpool_size = *buf_ptr++ & ~PUSH_POOL;
+ SLJIT_ASSERT(cpool_size > 0);
+ cpool_start_address = ALIGN_INSTRUCTION(code_ptr + 1);
+ cpool_current_index = patch_pc_relative_loads(last_pc_patch, code_ptr, cpool_start_address, cpool_size);
+ if (cpool_current_index > 0) {
+ /* Unconditional branch. */
+ *code_ptr = B | (((cpool_start_address - code_ptr) + cpool_current_index - 2) & ~PUSH_POOL);
+ code_ptr = cpool_start_address + cpool_current_index;
+ }
+ cpool_skip_alignment = CONST_POOL_ALIGNMENT - 1;
+ cpool_current_index = 0;
+ last_pc_patch = code_ptr;
+ }
+#endif
+ } while (buf_ptr < buf_end);
+ buf = buf->next;
+ } while (buf);
+
+ SLJIT_ASSERT(!label);
+ SLJIT_ASSERT(!jump);
+ SLJIT_ASSERT(!const_);
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ SLJIT_ASSERT(cpool_size == 0);
+ if (compiler->cpool_fill > 0) {
+ cpool_start_address = ALIGN_INSTRUCTION(code_ptr);
+ cpool_current_index = patch_pc_relative_loads(last_pc_patch, code_ptr, cpool_start_address, compiler->cpool_fill);
+ if (cpool_current_index > 0)
+ code_ptr = cpool_start_address + cpool_current_index;
+
+ buf_ptr = compiler->cpool;
+ buf_end = buf_ptr + compiler->cpool_fill;
+ cpool_current_index = 0;
+ while (buf_ptr < buf_end) {
+ if (SLJIT_UNLIKELY(resolve_const_pool_index(compiler, &first_patch, cpool_current_index, cpool_start_address, buf_ptr))) {
+ SLJIT_FREE_EXEC(code);
+ compiler->error = SLJIT_ERR_ALLOC_FAILED;
+ return NULL;
+ }
+ buf_ptr++;
+ cpool_current_index++;
+ }
+ SLJIT_ASSERT(!first_patch);
+ }
+#endif
+
+ jump = compiler->jumps;
+ while (jump) {
+ buf_ptr = (sljit_uw *)jump->addr;
+
+ if (jump->flags & PATCH_B) {
+ jump_addr = (sljit_sw)SLJIT_ADD_EXEC_OFFSET(buf_ptr + 2, executable_offset);
+ if (!(jump->flags & JUMP_ADDR)) {
+ SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+ SLJIT_ASSERT(((sljit_sw)jump->u.label->addr - jump_addr) <= 0x01ffffff && ((sljit_sw)jump->u.label->addr - jump_addr) >= -0x02000000);
+ *buf_ptr |= (((sljit_sw)jump->u.label->addr - jump_addr) >> 2) & 0x00ffffff;
+ }
+ else {
+ SLJIT_ASSERT(((sljit_sw)jump->u.target - jump_addr) <= 0x01ffffff && ((sljit_sw)jump->u.target - jump_addr) >= -0x02000000);
+ *buf_ptr |= (((sljit_sw)jump->u.target - jump_addr) >> 2) & 0x00ffffff;
+ }
+ }
+ else if (jump->flags & SLJIT_REWRITABLE_JUMP) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ jump->addr = (sljit_uw)code_ptr;
+ code_ptr[0] = (sljit_uw)buf_ptr;
+ code_ptr[1] = *buf_ptr;
+ inline_set_jump_addr((sljit_uw)code_ptr, executable_offset, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
+ code_ptr += 2;
+#else
+ inline_set_jump_addr((sljit_uw)buf_ptr, executable_offset, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
+#endif
+ }
+ else {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ if (jump->flags & IS_BL)
+ buf_ptr--;
+ if (*buf_ptr & (1 << 23))
+ buf_ptr += ((*buf_ptr & 0xfff) >> 2) + 2;
+ else
+ buf_ptr += 1;
+ *buf_ptr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
+#else
+ inline_set_jump_addr((sljit_uw)buf_ptr, executable_offset, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
+#endif
+ }
+ jump = jump->next;
+ }
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ const_ = compiler->consts;
+ while (const_) {
+ buf_ptr = (sljit_uw*)const_->addr;
+ const_->addr = (sljit_uw)code_ptr;
+
+ code_ptr[0] = (sljit_uw)buf_ptr;
+ code_ptr[1] = *buf_ptr;
+ if (*buf_ptr & (1 << 23))
+ buf_ptr += ((*buf_ptr & 0xfff) >> 2) + 2;
+ else
+ buf_ptr += 1;
+ /* Set the value again (can be a simple constant). */
+ inline_set_const((sljit_uw)code_ptr, executable_offset, *buf_ptr, 0);
+ code_ptr += 2;
+
+ const_ = const_->next;
+ }
+#endif
+
+ SLJIT_ASSERT(code_ptr - code <= (sljit_s32)size);
+
+ compiler->error = SLJIT_ERR_COMPILED;
+ compiler->executable_offset = executable_offset;
+ compiler->executable_size = (code_ptr - code) * sizeof(sljit_uw);
+
+ code = (sljit_uw *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
+ code_ptr = (sljit_uw *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
+
+ SLJIT_CACHE_FLUSH(code, code_ptr);
+ return code;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type)
+{
+ switch (feature_type) {
+ case SLJIT_HAS_FPU:
+#ifdef SLJIT_IS_FPU_AVAILABLE
+ return SLJIT_IS_FPU_AVAILABLE;
+#else
+ /* Available by default. */
+ return 1;
+#endif
+
+ case SLJIT_HAS_CLZ:
+ case SLJIT_HAS_CMOV:
+ return 1;
+
+ default:
+ return 0;
+ }
+}
+
+/* --------------------------------------------------------------------- */
+/* Entry, exit */
+/* --------------------------------------------------------------------- */
+
+/* Creates an index in data_transfer_insts array. */
+#define WORD_SIZE 0x00
+#define BYTE_SIZE 0x01
+#define HALF_SIZE 0x02
+#define PRELOAD 0x03
+#define SIGNED 0x04
+#define LOAD_DATA 0x08
+
+/* Flag bits for emit_op. */
+#define ALLOW_IMM 0x10
+#define ALLOW_INV_IMM 0x20
+#define ALLOW_ANY_IMM (ALLOW_IMM | ALLOW_INV_IMM)
+
+/* s/l - store/load (1 bit)
+ u/s - signed/unsigned (1 bit)
+ w/b/h/N - word/byte/half/NOT allowed (2 bit)
+ Storing signed and unsigned values are the same operations. */
+
+static const sljit_uw data_transfer_insts[16] = {
+/* s u w */ 0xe5000000 /* str */,
+/* s u b */ 0xe5400000 /* strb */,
+/* s u h */ 0xe10000b0 /* strh */,
+/* s u N */ 0x00000000 /* not allowed */,
+/* s s w */ 0xe5000000 /* str */,
+/* s s b */ 0xe5400000 /* strb */,
+/* s s h */ 0xe10000b0 /* strh */,
+/* s s N */ 0x00000000 /* not allowed */,
+
+/* l u w */ 0xe5100000 /* ldr */,
+/* l u b */ 0xe5500000 /* ldrb */,
+/* l u h */ 0xe11000b0 /* ldrh */,
+/* l u p */ 0xf5500000 /* preload */,
+/* l s w */ 0xe5100000 /* ldr */,
+/* l s b */ 0xe11000d0 /* ldrsb */,
+/* l s h */ 0xe11000f0 /* ldrsh */,
+/* l s N */ 0x00000000 /* not allowed */,
+};
+
+#define EMIT_DATA_TRANSFER(type, add, target_reg, base_reg, arg) \
+ (data_transfer_insts[(type) & 0xf] | ((add) << 23) | RD(target_reg) | RN(base_reg) | (arg))
+
+/* Normal ldr/str instruction.
+ Type2: ldrsb, ldrh, ldrsh */
+#define IS_TYPE1_TRANSFER(type) \
+ (data_transfer_insts[(type) & 0xf] & 0x04000000)
+#define TYPE2_TRANSFER_IMM(imm) \
+ (((imm) & 0xf) | (((imm) & 0xf0) << 4) | (1 << 22))
+
+static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 inp_flags,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src1, sljit_sw src1w,
+ sljit_s32 src2, sljit_sw src2w);
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
+ sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
+ sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
+{
+ sljit_s32 args, size, i, tmp;
+ sljit_uw push;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
+ set_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
+
+ /* Push saved registers, temporary registers
+ stmdb sp!, {..., lr} */
+ push = PUSH | (1 << 14);
+
+ tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG;
+ for (i = SLJIT_S0; i >= tmp; i--)
+ push |= 1 << reg_map[i];
+
+ for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--)
+ push |= 1 << reg_map[i];
+
+ FAIL_IF(push_inst(compiler, push));
+
+ /* Stack must be aligned to 8 bytes: */
+ size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1);
+ local_size = ((size + local_size + 7) & ~7) - size;
+ compiler->local_size = local_size;
+ if (local_size > 0)
+ FAIL_IF(emit_op(compiler, SLJIT_SUB, ALLOW_IMM, SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, local_size));
+
+ args = get_arg_count(arg_types);
+
+ if (args >= 1)
+ FAIL_IF(push_inst(compiler, MOV | RD(SLJIT_S0) | RM(SLJIT_R0)));
+ if (args >= 2)
+ FAIL_IF(push_inst(compiler, MOV | RD(SLJIT_S1) | RM(SLJIT_R1)));
+ if (args >= 3)
+ FAIL_IF(push_inst(compiler, MOV | RD(SLJIT_S2) | RM(SLJIT_R2)));
+
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
+ sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
+ sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
+{
+ sljit_s32 size;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
+ set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
+
+ size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1);
+ compiler->local_size = ((size + local_size + 7) & ~7) - size;
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
+{
+ sljit_s32 i, tmp;
+ sljit_uw pop;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_return(compiler, op, src, srcw));
+
+ FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
+
+ if (compiler->local_size > 0)
+ FAIL_IF(emit_op(compiler, SLJIT_ADD, ALLOW_IMM, SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, compiler->local_size));
+
+ /* Push saved registers, temporary registers
+ ldmia sp!, {..., pc} */
+ pop = POP | (1 << 15);
+
+ tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG;
+ for (i = SLJIT_S0; i >= tmp; i--)
+ pop |= 1 << reg_map[i];
+
+ for (i = compiler->scratches; i >= SLJIT_FIRST_SAVED_REG; i--)
+ pop |= 1 << reg_map[i];
+
+ return push_inst(compiler, pop);
+}
+
+/* --------------------------------------------------------------------- */
+/* Operators */
+/* --------------------------------------------------------------------- */
+
+/* flags: */
+ /* Arguments are swapped. */
+#define ARGS_SWAPPED 0x01
+ /* Inverted immediate. */
+#define INV_IMM 0x02
+ /* Source and destination is register. */
+#define MOVE_REG_CONV 0x04
+ /* Unused return value. */
+#define UNUSED_RETURN 0x08
+/* SET_FLAGS must be (1 << 20) as it is also the value of S bit (can be used for optimization). */
+#define SET_FLAGS (1 << 20)
+/* dst: reg
+ src1: reg
+ src2: reg or imm (if allowed)
+ SRC2_IMM must be (1 << 25) as it is also the value of I bit (can be used for optimization). */
+#define SRC2_IMM (1 << 25)
+
+#define EMIT_SHIFT_INS_AND_RETURN(opcode) \
+ SLJIT_ASSERT(!(flags & INV_IMM) && !(src2 & SRC2_IMM)); \
+ if (compiler->shift_imm != 0x20) { \
+ SLJIT_ASSERT(src1 == TMP_REG1); \
+ SLJIT_ASSERT(!(flags & ARGS_SWAPPED)); \
+ \
+ if (compiler->shift_imm != 0) \
+ return push_inst(compiler, MOV | (flags & SET_FLAGS) | \
+ RD(dst) | (compiler->shift_imm << 7) | (opcode << 5) | RM(src2)); \
+ return push_inst(compiler, MOV | (flags & SET_FLAGS) | RD(dst) | RM(src2)); \
+ } \
+ return push_inst(compiler, MOV | (flags & SET_FLAGS) | RD(dst) | \
+ (reg_map[(flags & ARGS_SWAPPED) ? src1 : src2] << 8) | (opcode << 5) | 0x10 | RM((flags & ARGS_SWAPPED) ? src2 : src1));
+
+static SLJIT_INLINE sljit_s32 emit_single_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
+ sljit_s32 dst, sljit_s32 src1, sljit_s32 src2)
+{
+ switch (GET_OPCODE(op)) {
+ case SLJIT_MOV:
+ SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
+ if (dst != src2) {
+ if (src2 & SRC2_IMM) {
+ return push_inst(compiler, ((flags & INV_IMM) ? MVN : MOV) | RD(dst) | src2);
+ }
+ return push_inst(compiler, MOV | RD(dst) | RM(src2));
+ }
+ return SLJIT_SUCCESS;
+
+ case SLJIT_MOV_U8:
+ case SLJIT_MOV_S8:
+ SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
+ if (flags & MOVE_REG_CONV) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ if (op == SLJIT_MOV_U8)
+ return push_inst(compiler, AND | RD(dst) | RN(src2) | SRC2_IMM | 0xff);
+ FAIL_IF(push_inst(compiler, MOV | RD(dst) | (24 << 7) | RM(src2)));
+ return push_inst(compiler, MOV | RD(dst) | (24 << 7) | (op == SLJIT_MOV_U8 ? 0x20 : 0x40) | RM(dst));
+#else
+ return push_inst(compiler, (op == SLJIT_MOV_U8 ? UXTB : SXTB) | RD(dst) | RM(src2));
+#endif
+ }
+ else if (dst != src2) {
+ SLJIT_ASSERT(src2 & SRC2_IMM);
+ return push_inst(compiler, ((flags & INV_IMM) ? MVN : MOV) | RD(dst) | src2);
+ }
+ return SLJIT_SUCCESS;
+
+ case SLJIT_MOV_U16:
+ case SLJIT_MOV_S16:
+ SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
+ if (flags & MOVE_REG_CONV) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ FAIL_IF(push_inst(compiler, MOV | RD(dst) | (16 << 7) | RM(src2)));
+ return push_inst(compiler, MOV | RD(dst) | (16 << 7) | (op == SLJIT_MOV_U16 ? 0x20 : 0x40) | RM(dst));
+#else
+ return push_inst(compiler, (op == SLJIT_MOV_U16 ? UXTH : SXTH) | RD(dst) | RM(src2));
+#endif
+ }
+ else if (dst != src2) {
+ SLJIT_ASSERT(src2 & SRC2_IMM);
+ return push_inst(compiler, ((flags & INV_IMM) ? MVN : MOV) | RD(dst) | src2);
+ }
+ return SLJIT_SUCCESS;
+
+ case SLJIT_NOT:
+ if (src2 & SRC2_IMM) {
+ return push_inst(compiler, ((flags & INV_IMM) ? MOV : MVN) | (flags & SET_FLAGS) | RD(dst) | src2);
+ }
+ return push_inst(compiler, MVN | (flags & SET_FLAGS) | RD(dst) | RM(src2));
+
+ case SLJIT_CLZ:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ SLJIT_ASSERT(!(src2 & SRC2_IMM));
+ FAIL_IF(push_inst(compiler, CLZ | RD(dst) | RM(src2)));
+ return SLJIT_SUCCESS;
+
+ case SLJIT_ADD:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ if ((flags & (UNUSED_RETURN | SET_FLAGS)) == (UNUSED_RETURN | SET_FLAGS) && !(flags & ARGS_SWAPPED))
+ return push_inst(compiler, CMN | SET_FLAGS | RN(src1) | ((src2 & SRC2_IMM) ? src2 : RM(src2)));
+ return push_inst(compiler, ADD | (flags & SET_FLAGS) | RD(dst) | RN(src1) | ((src2 & SRC2_IMM) ? src2 : RM(src2)));
+
+ case SLJIT_ADDC:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ return push_inst(compiler, ADC | (flags & SET_FLAGS) | RD(dst) | RN(src1) | ((src2 & SRC2_IMM) ? src2 : RM(src2)));
+
+ case SLJIT_SUB:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ if ((flags & (UNUSED_RETURN | SET_FLAGS)) == (UNUSED_RETURN | SET_FLAGS) && !(flags & ARGS_SWAPPED))
+ return push_inst(compiler, CMP | SET_FLAGS | RN(src1) | ((src2 & SRC2_IMM) ? src2 : RM(src2)));
+ return push_inst(compiler, (!(flags & ARGS_SWAPPED) ? SUB : RSB) | (flags & SET_FLAGS)
+ | RD(dst) | RN(src1) | ((src2 & SRC2_IMM) ? src2 : RM(src2)));
+
+ case SLJIT_SUBC:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ return push_inst(compiler, (!(flags & ARGS_SWAPPED) ? SBC : RSC) | (flags & SET_FLAGS)
+ | RD(dst) | RN(src1) | ((src2 & SRC2_IMM) ? src2 : RM(src2)));
+
+ case SLJIT_MUL:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ SLJIT_ASSERT(!(src2 & SRC2_IMM));
+
+ if (!HAS_FLAGS(op))
+ return push_inst(compiler, MUL | (reg_map[dst] << 16) | (reg_map[src2] << 8) | reg_map[src1]);
+
+ FAIL_IF(push_inst(compiler, SMULL | (reg_map[TMP_REG1] << 16) | (reg_map[dst] << 12) | (reg_map[src2] << 8) | reg_map[src1]));
+
+ /* cmp TMP_REG1, dst asr #31. */
+ return push_inst(compiler, CMP | SET_FLAGS | RN(TMP_REG1) | RM(dst) | 0xfc0);
+
+ case SLJIT_AND:
+ return push_inst(compiler, (!(flags & INV_IMM) ? AND : BIC) | (flags & SET_FLAGS)
+ | RD(dst) | RN(src1) | ((src2 & SRC2_IMM) ? src2 : RM(src2)));
+
+ case SLJIT_OR:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ return push_inst(compiler, ORR | (flags & SET_FLAGS) | RD(dst) | RN(src1) | ((src2 & SRC2_IMM) ? src2 : RM(src2)));
+
+ case SLJIT_XOR:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ return push_inst(compiler, EOR | (flags & SET_FLAGS) | RD(dst) | RN(src1) | ((src2 & SRC2_IMM) ? src2 : RM(src2)));
+
+ case SLJIT_SHL:
+ EMIT_SHIFT_INS_AND_RETURN(0);
+
+ case SLJIT_LSHR:
+ EMIT_SHIFT_INS_AND_RETURN(1);
+
+ case SLJIT_ASHR:
+ EMIT_SHIFT_INS_AND_RETURN(2);
+ }
+
+ SLJIT_UNREACHABLE();
+ return SLJIT_SUCCESS;
+}
+
+#undef EMIT_SHIFT_INS_AND_RETURN
+
+/* Tests whether the immediate can be stored in the 12 bit imm field.
+ Returns with 0 if not possible. */
+static sljit_uw get_imm(sljit_uw imm)
+{
+ sljit_s32 rol;
+
+ if (imm <= 0xff)
+ return SRC2_IMM | imm;
+
+ if (!(imm & 0xff000000)) {
+ imm <<= 8;
+ rol = 8;
+ }
+ else {
+ imm = (imm << 24) | (imm >> 8);
+ rol = 0;
+ }
+
+ if (!(imm & 0xff000000)) {
+ imm <<= 8;
+ rol += 4;
+ }
+
+ if (!(imm & 0xf0000000)) {
+ imm <<= 4;
+ rol += 2;
+ }
+
+ if (!(imm & 0xc0000000)) {
+ imm <<= 2;
+ rol += 1;
+ }
+
+ if (!(imm & 0x00ffffff))
+ return SRC2_IMM | (imm >> 24) | (rol << 8);
+ else
+ return 0;
+}
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+static sljit_s32 generate_int(struct sljit_compiler *compiler, sljit_s32 reg, sljit_uw imm, sljit_s32 positive)
+{
+ sljit_uw mask;
+ sljit_uw imm1;
+ sljit_uw imm2;
+ sljit_s32 rol;
+
+ /* Step1: Search a zero byte (8 continous zero bit). */
+ mask = 0xff000000;
+ rol = 8;
+ while(1) {
+ if (!(imm & mask)) {
+ /* Rol imm by rol. */
+ imm = (imm << rol) | (imm >> (32 - rol));
+ /* Calculate arm rol. */
+ rol = 4 + (rol >> 1);
+ break;
+ }
+ rol += 2;
+ mask >>= 2;
+ if (mask & 0x3) {
+ /* rol by 8. */
+ imm = (imm << 8) | (imm >> 24);
+ mask = 0xff00;
+ rol = 24;
+ while (1) {
+ if (!(imm & mask)) {
+ /* Rol imm by rol. */
+ imm = (imm << rol) | (imm >> (32 - rol));
+ /* Calculate arm rol. */
+ rol = (rol >> 1) - 8;
+ break;
+ }
+ rol += 2;
+ mask >>= 2;
+ if (mask & 0x3)
+ return 0;
+ }
+ break;
+ }
+ }
+
+ /* The low 8 bit must be zero. */
+ SLJIT_ASSERT(!(imm & 0xff));
+
+ if (!(imm & 0xff000000)) {
+ imm1 = SRC2_IMM | ((imm >> 16) & 0xff) | (((rol + 4) & 0xf) << 8);
+ imm2 = SRC2_IMM | ((imm >> 8) & 0xff) | (((rol + 8) & 0xf) << 8);
+ }
+ else if (imm & 0xc0000000) {
+ imm1 = SRC2_IMM | ((imm >> 24) & 0xff) | ((rol & 0xf) << 8);
+ imm <<= 8;
+ rol += 4;
+
+ if (!(imm & 0xff000000)) {
+ imm <<= 8;
+ rol += 4;
+ }
+
+ if (!(imm & 0xf0000000)) {
+ imm <<= 4;
+ rol += 2;
+ }
+
+ if (!(imm & 0xc0000000)) {
+ imm <<= 2;
+ rol += 1;
+ }
+
+ if (!(imm & 0x00ffffff))
+ imm2 = SRC2_IMM | (imm >> 24) | ((rol & 0xf) << 8);
+ else
+ return 0;
+ }
+ else {
+ if (!(imm & 0xf0000000)) {
+ imm <<= 4;
+ rol += 2;
+ }
+
+ if (!(imm & 0xc0000000)) {
+ imm <<= 2;
+ rol += 1;
+ }
+
+ imm1 = SRC2_IMM | ((imm >> 24) & 0xff) | ((rol & 0xf) << 8);
+ imm <<= 8;
+ rol += 4;
+
+ if (!(imm & 0xf0000000)) {
+ imm <<= 4;
+ rol += 2;
+ }
+
+ if (!(imm & 0xc0000000)) {
+ imm <<= 2;
+ rol += 1;
+ }
+
+ if (!(imm & 0x00ffffff))
+ imm2 = SRC2_IMM | (imm >> 24) | ((rol & 0xf) << 8);
+ else
+ return 0;
+ }
+
+ FAIL_IF(push_inst(compiler, (positive ? MOV : MVN) | RD(reg) | imm1));
+ FAIL_IF(push_inst(compiler, (positive ? ORR : BIC) | RD(reg) | RN(reg) | imm2));
+ return 1;
+}
+#endif
+
+static sljit_s32 load_immediate(struct sljit_compiler *compiler, sljit_s32 reg, sljit_uw imm)
+{
+ sljit_uw tmp;
+
+#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+ if (!(imm & ~0xffff))
+ return push_inst(compiler, MOVW | RD(reg) | ((imm << 4) & 0xf0000) | (imm & 0xfff));
+#endif
+
+ /* Create imm by 1 inst. */
+ tmp = get_imm(imm);
+ if (tmp)
+ return push_inst(compiler, MOV | RD(reg) | tmp);
+
+ tmp = get_imm(~imm);
+ if (tmp)
+ return push_inst(compiler, MVN | RD(reg) | tmp);
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ /* Create imm by 2 inst. */
+ FAIL_IF(generate_int(compiler, reg, imm, 1));
+ FAIL_IF(generate_int(compiler, reg, ~imm, 0));
+
+ /* Load integer. */
+ return push_inst_with_literal(compiler, EMIT_DATA_TRANSFER(WORD_SIZE | LOAD_DATA, 1, reg, TMP_PC, 0), imm);
+#else
+ FAIL_IF(push_inst(compiler, MOVW | RD(reg) | ((imm << 4) & 0xf0000) | (imm & 0xfff)));
+ if (imm <= 0xffff)
+ return SLJIT_SUCCESS;
+ return push_inst(compiler, MOVT | RD(reg) | ((imm >> 12) & 0xf0000) | ((imm >> 16) & 0xfff));
+#endif
+}
+
+static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg,
+ sljit_s32 arg, sljit_sw argw, sljit_s32 tmp_reg)
+{
+ sljit_uw imm, offset_reg;
+ sljit_uw is_type1_transfer = IS_TYPE1_TRANSFER(flags);
+
+ SLJIT_ASSERT (arg & SLJIT_MEM);
+ SLJIT_ASSERT((arg & REG_MASK) != tmp_reg);
+
+ if ((arg & REG_MASK) == SLJIT_UNUSED) {
+ if (is_type1_transfer) {
+ FAIL_IF(load_immediate(compiler, tmp_reg, argw & ~0xfff));
+ argw &= 0xfff;
+ }
+ else {
+ FAIL_IF(load_immediate(compiler, tmp_reg, argw & ~0xff));
+ argw &= 0xff;
+ }
+
+ return push_inst(compiler, EMIT_DATA_TRANSFER(flags, 1, reg, tmp_reg,
+ is_type1_transfer ? argw : TYPE2_TRANSFER_IMM(argw)));
+ }
+
+ if (arg & OFFS_REG_MASK) {
+ offset_reg = OFFS_REG(arg);
+ arg &= REG_MASK;
+ argw &= 0x3;
+
+ if (argw != 0 && !is_type1_transfer) {
+ FAIL_IF(push_inst(compiler, ADD | RD(tmp_reg) | RN(arg) | RM(offset_reg) | (argw << 7)));
+ return push_inst(compiler, EMIT_DATA_TRANSFER(flags, 1, reg, tmp_reg, TYPE2_TRANSFER_IMM(0)));
+ }
+
+ /* Bit 25: RM is offset. */
+ return push_inst(compiler, EMIT_DATA_TRANSFER(flags, 1, reg, arg,
+ RM(offset_reg) | (is_type1_transfer ? (1 << 25) : 0) | (argw << 7)));
+ }
+
+ arg &= REG_MASK;
+
+ if (is_type1_transfer) {
+ if (argw > 0xfff) {
+ imm = get_imm(argw & ~0xfff);
+ if (imm) {
+ FAIL_IF(push_inst(compiler, ADD | RD(tmp_reg) | RN(arg) | imm));
+ argw = argw & 0xfff;
+ arg = tmp_reg;
+ }
+ }
+ else if (argw < -0xfff) {
+ imm = get_imm(-argw & ~0xfff);
+ if (imm) {
+ FAIL_IF(push_inst(compiler, SUB | RD(tmp_reg) | RN(arg) | imm));
+ argw = -(-argw & 0xfff);
+ arg = tmp_reg;
+ }
+ }
+
+ if (argw >= 0 && argw <= 0xfff)
+ return push_inst(compiler, EMIT_DATA_TRANSFER(flags, 1, reg, arg, argw));
+
+ if (argw < 0 && argw >= -0xfff)
+ return push_inst(compiler, EMIT_DATA_TRANSFER(flags, 0, reg, arg, -argw));
+ }
+ else {
+ if (argw > 0xff) {
+ imm = get_imm(argw & ~0xff);
+ if (imm) {
+ FAIL_IF(push_inst(compiler, ADD | RD(tmp_reg) | RN(arg) | imm));
+ argw = argw & 0xff;
+ arg = tmp_reg;
+ }
+ }
+ else if (argw < -0xff) {
+ imm = get_imm(-argw & ~0xff);
+ if (imm) {
+ FAIL_IF(push_inst(compiler, SUB | RD(tmp_reg) | RN(arg) | imm));
+ argw = -(-argw & 0xff);
+ arg = tmp_reg;
+ }
+ }
+
+ if (argw >= 0 && argw <= 0xff)
+ return push_inst(compiler, EMIT_DATA_TRANSFER(flags, 1, reg, arg, TYPE2_TRANSFER_IMM(argw)));
+
+ if (argw < 0 && argw >= -0xff) {
+ argw = -argw;
+ return push_inst(compiler, EMIT_DATA_TRANSFER(flags, 0, reg, arg, TYPE2_TRANSFER_IMM(argw)));
+ }
+ }
+
+ FAIL_IF(load_immediate(compiler, tmp_reg, argw));
+ return push_inst(compiler, EMIT_DATA_TRANSFER(flags, 1, reg, arg,
+ RM(tmp_reg) | (is_type1_transfer ? (1 << 25) : 0)));
+}
+
+static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 inp_flags,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src1, sljit_sw src1w,
+ sljit_s32 src2, sljit_sw src2w)
+{
+ /* src1 is reg or TMP_REG1
+ src2 is reg, TMP_REG2, or imm
+ result goes to TMP_REG2, so put result can use TMP_REG1. */
+
+ /* We prefers register and simple consts. */
+ sljit_s32 dst_reg;
+ sljit_s32 src1_reg;
+ sljit_s32 src2_reg;
+ sljit_s32 flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
+
+ /* Destination check. */
+ if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED))
+ flags |= UNUSED_RETURN;
+
+ SLJIT_ASSERT(!(inp_flags & ALLOW_INV_IMM) || (inp_flags & ALLOW_IMM));
+
+ src2_reg = 0;
+
+ do {
+ if (!(inp_flags & ALLOW_IMM))
+ break;
+
+ if (src2 & SLJIT_IMM) {
+ src2_reg = get_imm(src2w);
+ if (src2_reg)
+ break;
+ if (inp_flags & ALLOW_INV_IMM) {
+ src2_reg = get_imm(~src2w);
+ if (src2_reg) {
+ flags |= INV_IMM;
+ break;
+ }
+ }
+ if (GET_OPCODE(op) == SLJIT_ADD) {
+ src2_reg = get_imm(-src2w);
+ if (src2_reg) {
+ op = SLJIT_SUB | GET_ALL_FLAGS(op);
+ break;
+ }
+ }
+ if (GET_OPCODE(op) == SLJIT_SUB) {
+ src2_reg = get_imm(-src2w);
+ if (src2_reg) {
+ op = SLJIT_ADD | GET_ALL_FLAGS(op);
+ break;
+ }
+ }
+ }
+
+ if (src1 & SLJIT_IMM) {
+ src2_reg = get_imm(src1w);
+ if (src2_reg) {
+ flags |= ARGS_SWAPPED;
+ src1 = src2;
+ src1w = src2w;
+ break;
+ }
+ if (inp_flags & ALLOW_INV_IMM) {
+ src2_reg = get_imm(~src1w);
+ if (src2_reg) {
+ flags |= ARGS_SWAPPED | INV_IMM;
+ src1 = src2;
+ src1w = src2w;
+ break;
+ }
+ }
+ if (GET_OPCODE(op) == SLJIT_ADD) {
+ src2_reg = get_imm(-src1w);
+ if (src2_reg) {
+ /* Note: add is commutative operation. */
+ src1 = src2;
+ src1w = src2w;
+ op = SLJIT_SUB | GET_ALL_FLAGS(op);
+ break;
+ }
+ }
+ }
+ } while(0);
+
+ /* Source 1. */
+ if (FAST_IS_REG(src1))
+ src1_reg = src1;
+ else if (src1 & SLJIT_MEM) {
+ FAIL_IF(emit_op_mem(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, TMP_REG1));
+ src1_reg = TMP_REG1;
+ }
+ else {
+ FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
+ src1_reg = TMP_REG1;
+ }
+
+ /* Destination. */
+ dst_reg = SLOW_IS_REG(dst) ? dst : TMP_REG2;
+
+ if (op <= SLJIT_MOV_P) {
+ if (dst & SLJIT_MEM) {
+ if (inp_flags & BYTE_SIZE)
+ inp_flags &= ~SIGNED;
+
+ if (FAST_IS_REG(src2))
+ return emit_op_mem(compiler, inp_flags, src2, dst, dstw, TMP_REG2);
+ }
+
+ if (FAST_IS_REG(src2) && dst_reg != TMP_REG2)
+ flags |= MOVE_REG_CONV;
+ }
+
+ /* Source 2. */
+ if (src2_reg == 0) {
+ src2_reg = (op <= SLJIT_MOV_P) ? dst_reg : TMP_REG2;
+
+ if (FAST_IS_REG(src2))
+ src2_reg = src2;
+ else if (src2 & SLJIT_MEM)
+ FAIL_IF(emit_op_mem(compiler, inp_flags | LOAD_DATA, src2_reg, src2, src2w, TMP_REG2));
+ else
+ FAIL_IF(load_immediate(compiler, src2_reg, src2w));
+ }
+
+ FAIL_IF(emit_single_op(compiler, op, flags, dst_reg, src1_reg, src2_reg));
+
+ if (!(dst & SLJIT_MEM))
+ return SLJIT_SUCCESS;
+
+ return emit_op_mem(compiler, inp_flags, dst_reg, dst, dstw, TMP_REG1);
+}
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__GNUC__)
+extern unsigned int __aeabi_uidivmod(unsigned int numerator, unsigned int denominator);
+extern int __aeabi_idivmod(int numerator, int denominator);
+#else
+#error "Software divmod functions are needed"
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
+{
+ sljit_sw saved_reg_list[3];
+ sljit_sw saved_reg_count;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_op0(compiler, op));
+
+ op = GET_OPCODE(op);
+ switch (op) {
+ case SLJIT_BREAKPOINT:
+ FAIL_IF(push_inst(compiler, BKPT));
+ break;
+ case SLJIT_NOP:
+ FAIL_IF(push_inst(compiler, NOP));
+ break;
+ case SLJIT_LMUL_UW:
+ case SLJIT_LMUL_SW:
+ return push_inst(compiler, (op == SLJIT_LMUL_UW ? UMULL : SMULL)
+ | (reg_map[SLJIT_R1] << 16)
+ | (reg_map[SLJIT_R0] << 12)
+ | (reg_map[SLJIT_R0] << 8)
+ | reg_map[SLJIT_R1]);
+ case SLJIT_DIVMOD_UW:
+ case SLJIT_DIVMOD_SW:
+ case SLJIT_DIV_UW:
+ case SLJIT_DIV_SW:
+ SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments);
+ SLJIT_ASSERT(reg_map[2] == 1 && reg_map[3] == 2 && reg_map[4] == 3);
+
+ saved_reg_count = 0;
+ if (compiler->scratches >= 4)
+ saved_reg_list[saved_reg_count++] = 3;
+ if (compiler->scratches >= 3)
+ saved_reg_list[saved_reg_count++] = 2;
+ if (op >= SLJIT_DIV_UW)
+ saved_reg_list[saved_reg_count++] = 1;
+
+ if (saved_reg_count > 0) {
+ FAIL_IF(push_inst(compiler, 0xe52d0000 | (saved_reg_count >= 3 ? 16 : 8)
+ | (saved_reg_list[0] << 12) /* str rX, [sp, #-8/-16]! */));
+ if (saved_reg_count >= 2) {
+ SLJIT_ASSERT(saved_reg_list[1] < 8);
+ FAIL_IF(push_inst(compiler, 0xe58d0004 | (saved_reg_list[1] << 12) /* str rX, [sp, #4] */));
+ }
+ if (saved_reg_count >= 3) {
+ SLJIT_ASSERT(saved_reg_list[2] < 8);
+ FAIL_IF(push_inst(compiler, 0xe58d0008 | (saved_reg_list[2] << 12) /* str rX, [sp, #8] */));
+ }
+ }
+
+#if defined(__GNUC__)
+ FAIL_IF(sljit_emit_ijump(compiler, SLJIT_FAST_CALL, SLJIT_IMM,
+ ((op | 0x2) == SLJIT_DIV_UW ? SLJIT_FUNC_OFFSET(__aeabi_uidivmod) : SLJIT_FUNC_OFFSET(__aeabi_idivmod))));
+#else
+#error "Software divmod functions are needed"
+#endif
+
+ if (saved_reg_count > 0) {
+ if (saved_reg_count >= 3) {
+ SLJIT_ASSERT(saved_reg_list[2] < 8);
+ FAIL_IF(push_inst(compiler, 0xe59d0008 | (saved_reg_list[2] << 12) /* ldr rX, [sp, #8] */));
+ }
+ if (saved_reg_count >= 2) {
+ SLJIT_ASSERT(saved_reg_list[1] < 8);
+ FAIL_IF(push_inst(compiler, 0xe59d0004 | (saved_reg_list[1] << 12) /* ldr rX, [sp, #4] */));
+ }
+ return push_inst(compiler, 0xe49d0000 | (saved_reg_count >= 3 ? 16 : 8)
+ | (saved_reg_list[0] << 12) /* ldr rX, [sp], #8/16 */);
+ }
+ return SLJIT_SUCCESS;
+ }
+
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src, sljit_sw srcw)
+{
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+ ADJUST_LOCAL_OFFSET(src, srcw);
+
+ if (dst == SLJIT_UNUSED && !HAS_FLAGS(op)) {
+#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+ if (op <= SLJIT_MOV_P && (src & SLJIT_MEM))
+ return emit_op_mem(compiler, PRELOAD | LOAD_DATA, TMP_PC, src, srcw, TMP_REG1);
+#endif
+ return SLJIT_SUCCESS;
+ }
+
+ switch (GET_OPCODE(op)) {
+ case SLJIT_MOV:
+ case SLJIT_MOV_U32:
+ case SLJIT_MOV_S32:
+ case SLJIT_MOV_P:
+ return emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, src, srcw);
+
+ case SLJIT_MOV_U8:
+ return emit_op(compiler, SLJIT_MOV_U8, ALLOW_ANY_IMM | BYTE_SIZE, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw);
+
+ case SLJIT_MOV_S8:
+ return emit_op(compiler, SLJIT_MOV_S8, ALLOW_ANY_IMM | SIGNED | BYTE_SIZE, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw);
+
+ case SLJIT_MOV_U16:
+ return emit_op(compiler, SLJIT_MOV_U16, ALLOW_ANY_IMM | HALF_SIZE, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw);
+
+ case SLJIT_MOV_S16:
+ return emit_op(compiler, SLJIT_MOV_S16, ALLOW_ANY_IMM | SIGNED | HALF_SIZE, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw);
+
+ case SLJIT_NOT:
+ return emit_op(compiler, op, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, src, srcw);
+
+ case SLJIT_NEG:
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+ return sljit_emit_op2(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), dst, dstw, SLJIT_IMM, 0, src, srcw);
+
+ case SLJIT_CLZ:
+ return emit_op(compiler, op, 0, dst, dstw, TMP_REG1, 0, src, srcw);
+ }
+
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src1, sljit_sw src1w,
+ sljit_s32 src2, sljit_sw src2w)
+{
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+ ADJUST_LOCAL_OFFSET(src1, src1w);
+ ADJUST_LOCAL_OFFSET(src2, src2w);
+
+ if (dst == SLJIT_UNUSED && !HAS_FLAGS(op))
+ return SLJIT_SUCCESS;
+
+ switch (GET_OPCODE(op)) {
+ case SLJIT_ADD:
+ case SLJIT_ADDC:
+ case SLJIT_SUB:
+ case SLJIT_SUBC:
+ case SLJIT_OR:
+ case SLJIT_XOR:
+ return emit_op(compiler, op, ALLOW_IMM, dst, dstw, src1, src1w, src2, src2w);
+
+ case SLJIT_MUL:
+ return emit_op(compiler, op, 0, dst, dstw, src1, src1w, src2, src2w);
+
+ case SLJIT_AND:
+ return emit_op(compiler, op, ALLOW_ANY_IMM, dst, dstw, src1, src1w, src2, src2w);
+
+ case SLJIT_SHL:
+ case SLJIT_LSHR:
+ case SLJIT_ASHR:
+ if (src2 & SLJIT_IMM) {
+ compiler->shift_imm = src2w & 0x1f;
+ return emit_op(compiler, op, 0, dst, dstw, TMP_REG1, 0, src1, src1w);
+ }
+ else {
+ compiler->shift_imm = 0x20;
+ return emit_op(compiler, op, 0, dst, dstw, src1, src1w, src2, src2w);
+ }
+ }
+
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg)
+{
+ CHECK_REG_INDEX(check_sljit_get_register_index(reg));
+ return reg_map[reg];
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg)
+{
+ CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
+ return (freg_map[reg] << 1);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
+ void *instruction, sljit_s32 size)
+{
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
+
+ return push_inst(compiler, *(sljit_uw*)instruction);
+}
+
+/* --------------------------------------------------------------------- */
+/* Floating point operators */
+/* --------------------------------------------------------------------- */
+
+
+#define FPU_LOAD (1 << 20)
+#define EMIT_FPU_DATA_TRANSFER(inst, add, base, freg, offs) \
+ ((inst) | ((add) << 23) | (reg_map[base] << 16) | (freg_map[freg] << 12) | (offs))
+#define EMIT_FPU_OPERATION(opcode, mode, dst, src1, src2) \
+ ((opcode) | (mode) | (freg_map[dst] << 12) | freg_map[src1] | (freg_map[src2] << 16))
+
+static sljit_s32 emit_fop_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
+{
+ sljit_uw imm;
+ sljit_sw inst = VSTR_F32 | (flags & (SLJIT_F32_OP | FPU_LOAD));
+
+ SLJIT_ASSERT(arg & SLJIT_MEM);
+ arg &= ~SLJIT_MEM;
+
+ if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
+ FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG2) | RN(arg & REG_MASK) | RM(OFFS_REG(arg)) | ((argw & 0x3) << 7)));
+ arg = TMP_REG2;
+ argw = 0;
+ }
+
+ /* Fast loads and stores. */
+ if (arg) {
+ if (!(argw & ~0x3fc))
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 1, arg & REG_MASK, reg, argw >> 2));
+ if (!(-argw & ~0x3fc))
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 0, arg & REG_MASK, reg, (-argw) >> 2));
+
+ imm = get_imm(argw & ~0x3fc);
+ if (imm) {
+ FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG2) | RN(arg & REG_MASK) | imm));
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 1, TMP_REG2, reg, (argw & 0x3fc) >> 2));
+ }
+ imm = get_imm(-argw & ~0x3fc);
+ if (imm) {
+ argw = -argw;
+ FAIL_IF(push_inst(compiler, SUB | RD(TMP_REG2) | RN(arg & REG_MASK) | imm));
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 0, TMP_REG2, reg, (argw & 0x3fc) >> 2));
+ }
+ }
+
+ if (arg) {
+ FAIL_IF(load_immediate(compiler, TMP_REG2, argw));
+ FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG2) | RN(arg & REG_MASK) | RM(TMP_REG2)));
+ }
+ else
+ FAIL_IF(load_immediate(compiler, TMP_REG2, argw));
+
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 1, TMP_REG2, reg, 0));
+}
+
+static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src, sljit_sw srcw)
+{
+ op ^= SLJIT_F32_OP;
+
+ if (src & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG1, src, srcw));
+ src = TMP_FREG1;
+ }
+
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VCVT_S32_F32, op & SLJIT_F32_OP, TMP_FREG1, src, 0)));
+
+ if (FAST_IS_REG(dst))
+ return push_inst(compiler, VMOV | (1 << 20) | RD(dst) | (freg_map[TMP_FREG1] << 16));
+
+ /* Store the integer value from a VFP register. */
+ return emit_fop_mem(compiler, 0, TMP_FREG1, dst, dstw);
+}
+
+static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src, sljit_sw srcw)
+{
+ sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
+
+ op ^= SLJIT_F32_OP;
+
+ if (FAST_IS_REG(src))
+ FAIL_IF(push_inst(compiler, VMOV | RD(src) | (freg_map[TMP_FREG1] << 16)));
+ else if (src & SLJIT_MEM) {
+ /* Load the integer value into a VFP register. */
+ FAIL_IF(emit_fop_mem(compiler, FPU_LOAD, TMP_FREG1, src, srcw));
+ }
+ else {
+ FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
+ FAIL_IF(push_inst(compiler, VMOV | RD(TMP_REG1) | (freg_map[TMP_FREG1] << 16)));
+ }
+
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VCVT_F32_S32, op & SLJIT_F32_OP, dst_r, TMP_FREG1, 0)));
+
+ if (dst & SLJIT_MEM)
+ return emit_fop_mem(compiler, (op & SLJIT_F32_OP), TMP_FREG1, dst, dstw);
+ return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 src1, sljit_sw src1w,
+ sljit_s32 src2, sljit_sw src2w)
+{
+ op ^= SLJIT_F32_OP;
+
+ if (src1 & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG1, src1, src1w));
+ src1 = TMP_FREG1;
+ }
+
+ if (src2 & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG2, src2, src2w));
+ src2 = TMP_FREG2;
+ }
+
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VCMP_F32, op & SLJIT_F32_OP, src1, src2, 0)));
+ return push_inst(compiler, VMRS);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src, sljit_sw srcw)
+{
+ sljit_s32 dst_r;
+
+ CHECK_ERROR();
+
+ SLJIT_COMPILE_ASSERT((SLJIT_F32_OP == 0x100), float_transfer_bit_error);
+ SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
+
+ dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
+
+ if (GET_OPCODE(op) != SLJIT_CONV_F64_FROM_F32)
+ op ^= SLJIT_F32_OP;
+
+ if (src & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, dst_r, src, srcw));
+ src = dst_r;
+ }
+
+ switch (GET_OPCODE(op)) {
+ case SLJIT_MOV_F64:
+ if (src != dst_r) {
+ if (dst_r != TMP_FREG1)
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VMOV_F32, op & SLJIT_F32_OP, dst_r, src, 0)));
+ else
+ dst_r = src;
+ }
+ break;
+ case SLJIT_NEG_F64:
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VNEG_F32, op & SLJIT_F32_OP, dst_r, src, 0)));
+ break;
+ case SLJIT_ABS_F64:
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VABS_F32, op & SLJIT_F32_OP, dst_r, src, 0)));
+ break;
+ case SLJIT_CONV_F64_FROM_F32:
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VCVT_F64_F32, op & SLJIT_F32_OP, dst_r, src, 0)));
+ op ^= SLJIT_F32_OP;
+ break;
+ }
+
+ if (dst & SLJIT_MEM)
+ return emit_fop_mem(compiler, (op & SLJIT_F32_OP), dst_r, dst, dstw);
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src1, sljit_sw src1w,
+ sljit_s32 src2, sljit_sw src2w)
+{
+ sljit_s32 dst_r;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+ ADJUST_LOCAL_OFFSET(src1, src1w);
+ ADJUST_LOCAL_OFFSET(src2, src2w);
+
+ op ^= SLJIT_F32_OP;
+
+ dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
+
+ if (src2 & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG2, src2, src2w));
+ src2 = TMP_FREG2;
+ }
+
+ if (src1 & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG1, src1, src1w));
+ src1 = TMP_FREG1;
+ }
+
+ switch (GET_OPCODE(op)) {
+ case SLJIT_ADD_F64:
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VADD_F32, op & SLJIT_F32_OP, dst_r, src2, src1)));
+ break;
+
+ case SLJIT_SUB_F64:
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VSUB_F32, op & SLJIT_F32_OP, dst_r, src2, src1)));
+ break;
+
+ case SLJIT_MUL_F64:
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VMUL_F32, op & SLJIT_F32_OP, dst_r, src2, src1)));
+ break;
+
+ case SLJIT_DIV_F64:
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VDIV_F32, op & SLJIT_F32_OP, dst_r, src2, src1)));
+ break;
+ }
+
+ if (dst_r == TMP_FREG1)
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_F32_OP), TMP_FREG1, dst, dstw));
+
+ return SLJIT_SUCCESS;
+}
+
+#undef FPU_LOAD
+#undef EMIT_FPU_DATA_TRANSFER
+
+/* --------------------------------------------------------------------- */
+/* Other instructions */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
+{
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+
+ SLJIT_ASSERT(reg_map[TMP_REG2] == 14);
+
+ if (FAST_IS_REG(dst))
+ return push_inst(compiler, MOV | RD(dst) | RM(TMP_REG2));
+
+ /* Memory. */
+ return emit_op_mem(compiler, WORD_SIZE, TMP_REG2, dst, dstw, TMP_REG1);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src, sljit_sw srcw)
+{
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_fast_return(compiler, src, srcw));
+ ADJUST_LOCAL_OFFSET(src, srcw);
+
+ SLJIT_ASSERT(reg_map[TMP_REG2] == 14);
+
+ if (FAST_IS_REG(src))
+ FAIL_IF(push_inst(compiler, MOV | RD(TMP_REG2) | RM(src)));
+ else
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE | LOAD_DATA, TMP_REG2, src, srcw, TMP_REG1));
+
+ return push_inst(compiler, BX | RM(TMP_REG2));
+}
+
+/* --------------------------------------------------------------------- */
+/* Conditional instructions */
+/* --------------------------------------------------------------------- */
+
+static sljit_uw get_cc(sljit_s32 type)
+{
+ switch (type) {
+ case SLJIT_EQUAL:
+ case SLJIT_MUL_NOT_OVERFLOW:
+ case SLJIT_EQUAL_F64:
+ return 0x00000000;
+
+ case SLJIT_NOT_EQUAL:
+ case SLJIT_MUL_OVERFLOW:
+ case SLJIT_NOT_EQUAL_F64:
+ return 0x10000000;
+
+ case SLJIT_LESS:
+ case SLJIT_LESS_F64:
+ return 0x30000000;
+
+ case SLJIT_GREATER_EQUAL:
+ case SLJIT_GREATER_EQUAL_F64:
+ return 0x20000000;
+
+ case SLJIT_GREATER:
+ case SLJIT_GREATER_F64:
+ return 0x80000000;
+
+ case SLJIT_LESS_EQUAL:
+ case SLJIT_LESS_EQUAL_F64:
+ return 0x90000000;
+
+ case SLJIT_SIG_LESS:
+ return 0xb0000000;
+
+ case SLJIT_SIG_GREATER_EQUAL:
+ return 0xa0000000;
+
+ case SLJIT_SIG_GREATER:
+ return 0xc0000000;
+
+ case SLJIT_SIG_LESS_EQUAL:
+ return 0xd0000000;
+
+ case SLJIT_OVERFLOW:
+ case SLJIT_UNORDERED_F64:
+ return 0x60000000;
+
+ case SLJIT_NOT_OVERFLOW:
+ case SLJIT_ORDERED_F64:
+ return 0x70000000;
+
+ default:
+ SLJIT_ASSERT(type >= SLJIT_JUMP && type <= SLJIT_CALL_CDECL);
+ return 0xe0000000;
+ }
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
+{
+ struct sljit_label *label;
+
+ CHECK_ERROR_PTR();
+ CHECK_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);
+ return label;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
+{
+ struct sljit_jump *jump;
+
+ CHECK_ERROR_PTR();
+ CHECK_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;
+
+ SLJIT_ASSERT(reg_map[TMP_REG1] != 14);
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ if (type >= SLJIT_FAST_CALL)
+ PTR_FAIL_IF(prepare_blx(compiler));
+ PTR_FAIL_IF(push_inst_with_unique_literal(compiler, ((EMIT_DATA_TRANSFER(WORD_SIZE | LOAD_DATA, 1,
+ type <= SLJIT_JUMP ? TMP_PC : TMP_REG1, TMP_PC, 0)) & ~COND_MASK) | get_cc(type), 0));
+
+ if (jump->flags & SLJIT_REWRITABLE_JUMP) {
+ jump->addr = compiler->size;
+ compiler->patches++;
+ }
+
+ if (type >= SLJIT_FAST_CALL) {
+ jump->flags |= IS_BL;
+ PTR_FAIL_IF(emit_blx(compiler));
+ }
+
+ if (!(jump->flags & SLJIT_REWRITABLE_JUMP))
+ jump->addr = compiler->size;
+#else
+ if (type >= SLJIT_FAST_CALL)
+ jump->flags |= IS_BL;
+ PTR_FAIL_IF(emit_imm(compiler, TMP_REG1, 0));
+ PTR_FAIL_IF(push_inst(compiler, (((type <= SLJIT_JUMP ? BX : BLX) | RM(TMP_REG1)) & ~COND_MASK) | get_cc(type)));
+ jump->addr = compiler->size;
+#endif
+ return jump;
+}
+
+#ifdef __SOFTFP__
+
+static sljit_s32 softfloat_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src)
+{
+ sljit_s32 stack_offset = 0;
+ sljit_s32 arg_count = 0;
+ sljit_s32 word_arg_offset = 0;
+ sljit_s32 float_arg_count = 0;
+ sljit_s32 types = 0;
+ sljit_s32 src_offset = 4 * sizeof(sljit_sw);
+ sljit_u8 offsets[4];
+
+ if (src && FAST_IS_REG(*src))
+ src_offset = reg_map[*src] * sizeof(sljit_sw);
+
+ arg_types >>= SLJIT_DEF_SHIFT;
+
+ while (arg_types) {
+ types = (types << SLJIT_DEF_SHIFT) | (arg_types & SLJIT_DEF_MASK);
+
+ switch (arg_types & SLJIT_DEF_MASK) {
+ case SLJIT_ARG_TYPE_F32:
+ offsets[arg_count] = (sljit_u8)stack_offset;
+ stack_offset += sizeof(sljit_f32);
+ arg_count++;
+ float_arg_count++;
+ break;
+ case SLJIT_ARG_TYPE_F64:
+ if (stack_offset & 0x7)
+ stack_offset += sizeof(sljit_sw);
+ offsets[arg_count] = (sljit_u8)stack_offset;
+ stack_offset += sizeof(sljit_f64);
+ arg_count++;
+ float_arg_count++;
+ break;
+ default:
+ offsets[arg_count] = (sljit_u8)stack_offset;
+ stack_offset += sizeof(sljit_sw);
+ arg_count++;
+ word_arg_offset += sizeof(sljit_sw);
+ break;
+ }
+
+ arg_types >>= SLJIT_DEF_SHIFT;
+ }
+
+ if (stack_offset > 16)
+ FAIL_IF(push_inst(compiler, SUB | RD(SLJIT_SP) | RN(SLJIT_SP) | SRC2_IMM | (((stack_offset - 16) + 0x7) & ~0x7)));
+
+ /* Process arguments in reversed direction. */
+ while (types) {
+ switch (types & SLJIT_DEF_MASK) {
+ case SLJIT_ARG_TYPE_F32:
+ arg_count--;
+ float_arg_count--;
+ stack_offset = offsets[arg_count];
+
+ if (stack_offset < 16) {
+ if (src_offset == stack_offset) {
+ FAIL_IF(push_inst(compiler, MOV | RD(TMP_REG1) | (src_offset >> 2)));
+ *src = TMP_REG1;
+ }
+ FAIL_IF(push_inst(compiler, VMOV | 0x100000 | (float_arg_count << 16) | (stack_offset << 10)));
+ } else
+ FAIL_IF(push_inst(compiler, VSTR_F32 | 0x800000 | RN(SLJIT_SP) | (float_arg_count << 12) | ((stack_offset - 16) >> 2)));
+ break;
+ case SLJIT_ARG_TYPE_F64:
+ arg_count--;
+ float_arg_count--;
+ stack_offset = offsets[arg_count];
+
+ SLJIT_ASSERT((stack_offset & 0x7) == 0);
+
+ if (stack_offset < 16) {
+ if (src_offset == stack_offset || src_offset == stack_offset + sizeof(sljit_sw)) {
+ FAIL_IF(push_inst(compiler, MOV | RD(TMP_REG1) | (src_offset >> 2)));
+ *src = TMP_REG1;
+ }
+ FAIL_IF(push_inst(compiler, VMOV2 | 0x100000 | (stack_offset << 10) | ((stack_offset + sizeof(sljit_sw)) << 14) | float_arg_count));
+ } else
+ FAIL_IF(push_inst(compiler, VSTR_F32 | 0x800100 | RN(SLJIT_SP) | (float_arg_count << 12) | ((stack_offset - 16) >> 2)));
+ break;
+ default:
+ arg_count--;
+ word_arg_offset -= sizeof(sljit_sw);
+ stack_offset = offsets[arg_count];
+
+ SLJIT_ASSERT(stack_offset >= word_arg_offset);
+
+ if (stack_offset != word_arg_offset) {
+ if (stack_offset < 16) {
+ if (src_offset == stack_offset) {
+ FAIL_IF(push_inst(compiler, MOV | RD(TMP_REG1) | (src_offset >> 2)));
+ *src = TMP_REG1;
+ }
+ else if (src_offset == word_arg_offset) {
+ *src = 1 + (stack_offset >> 2);
+ src_offset = stack_offset;
+ }
+ FAIL_IF(push_inst(compiler, MOV | (stack_offset << 10) | (word_arg_offset >> 2)));
+ } else
+ FAIL_IF(push_inst(compiler, data_transfer_insts[WORD_SIZE] | 0x800000 | RN(SLJIT_SP) | (word_arg_offset << 10) | (stack_offset - 16)));
+ }
+ break;
+ }
+
+ types >>= SLJIT_DEF_SHIFT;
+ }
+
+ return SLJIT_SUCCESS;
+}
+
+static sljit_s32 softfloat_post_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types)
+{
+ sljit_s32 stack_size = 0;
+
+ if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F32)
+ FAIL_IF(push_inst(compiler, VMOV | (0 << 16) | (0 << 12)));
+ if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F64)
+ FAIL_IF(push_inst(compiler, VMOV2 | (1 << 16) | (0 << 12) | 0));
+
+ arg_types >>= SLJIT_DEF_SHIFT;
+
+ while (arg_types) {
+ switch (arg_types & SLJIT_DEF_MASK) {
+ case SLJIT_ARG_TYPE_F32:
+ stack_size += sizeof(sljit_f32);
+ break;
+ case SLJIT_ARG_TYPE_F64:
+ if (stack_size & 0x7)
+ stack_size += sizeof(sljit_sw);
+ stack_size += sizeof(sljit_f64);
+ break;
+ default:
+ stack_size += sizeof(sljit_sw);
+ break;
+ }
+
+ arg_types >>= SLJIT_DEF_SHIFT;
+ }
+
+ if (stack_size <= 16)
+ return SLJIT_SUCCESS;
+
+ return push_inst(compiler, ADD | RD(SLJIT_SP) | RN(SLJIT_SP) | SRC2_IMM | (((stack_size - 16) + 0x7) & ~0x7));
+}
+
+#else /* !__SOFTFP__ */
+
+static sljit_s32 hardfloat_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types)
+{
+ sljit_u32 remap = 0;
+ sljit_u32 offset = 0;
+ sljit_u32 new_offset, mask;
+
+ /* Remove return value. */
+ arg_types >>= SLJIT_DEF_SHIFT;
+
+ while (arg_types) {
+ if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F32) {
+ new_offset = 0;
+ mask = 1;
+
+ while (remap & mask) {
+ new_offset++;
+ mask <<= 1;
+ }
+ remap |= mask;
+
+ if (offset != new_offset)
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VMOV_F32,
+ 0, (new_offset >> 1) + 1, (offset >> 1) + 1, 0) | ((new_offset & 0x1) ? 0x400000 : 0)));
+
+ offset += 2;
+ }
+ else if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F64) {
+ new_offset = 0;
+ mask = 3;
+
+ while (remap & mask) {
+ new_offset += 2;
+ mask <<= 2;
+ }
+ remap |= mask;
+
+ if (offset != new_offset)
+ FAIL_IF(push_inst(compiler, EMIT_FPU_OPERATION(VMOV_F32, SLJIT_F32_OP, (new_offset >> 1) + 1, (offset >> 1) + 1, 0)));
+
+ offset += 2;
+ }
+ arg_types >>= SLJIT_DEF_SHIFT;
+ }
+
+ return SLJIT_SUCCESS;
+}
+
+#endif /* __SOFTFP__ */
+
+#undef EMIT_FPU_OPERATION
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compiler *compiler, sljit_s32 type,
+ sljit_s32 arg_types)
+{
+#ifdef __SOFTFP__
+ struct sljit_jump *jump;
+#endif
+
+ CHECK_ERROR_PTR();
+ CHECK_PTR(check_sljit_emit_call(compiler, type, arg_types));
+
+#ifdef __SOFTFP__
+ PTR_FAIL_IF(softfloat_call_with_args(compiler, arg_types, NULL));
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+
+ jump = sljit_emit_jump(compiler, type);
+ PTR_FAIL_IF(jump == NULL);
+
+ PTR_FAIL_IF(softfloat_post_call_with_args(compiler, arg_types));
+ return jump;
+#else /* !__SOFTFP__ */
+ PTR_FAIL_IF(hardfloat_call_with_args(compiler, arg_types));
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+
+ return sljit_emit_jump(compiler, type);
+#endif /* __SOFTFP__ */
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
+{
+ struct sljit_jump *jump;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
+ ADJUST_LOCAL_OFFSET(src, srcw);
+
+ SLJIT_ASSERT(reg_map[TMP_REG1] != 14);
+
+ if (!(src & SLJIT_IMM)) {
+ if (FAST_IS_REG(src)) {
+ SLJIT_ASSERT(reg_map[src] != 14);
+ return push_inst(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RM(src));
+ }
+
+ SLJIT_ASSERT(src & SLJIT_MEM);
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE | LOAD_DATA, TMP_REG1, src, srcw, TMP_REG1));
+ return push_inst(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RM(TMP_REG1));
+ }
+
+ /* These jumps are converted to jump/call instructions when possible. */
+ 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_BL : 0));
+ jump->u.target = srcw;
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ if (type >= SLJIT_FAST_CALL)
+ FAIL_IF(prepare_blx(compiler));
+ FAIL_IF(push_inst_with_unique_literal(compiler, EMIT_DATA_TRANSFER(WORD_SIZE | LOAD_DATA, 1, type <= SLJIT_JUMP ? TMP_PC : TMP_REG1, TMP_PC, 0), 0));
+ if (type >= SLJIT_FAST_CALL)
+ FAIL_IF(emit_blx(compiler));
+#else
+ FAIL_IF(emit_imm(compiler, TMP_REG1, 0));
+ FAIL_IF(push_inst(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RM(TMP_REG1)));
+#endif
+ jump->addr = compiler->size;
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compiler, sljit_s32 type,
+ sljit_s32 arg_types,
+ sljit_s32 src, sljit_sw srcw)
+{
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_icall(compiler, type, arg_types, src, srcw));
+
+#ifdef __SOFTFP__
+ if (src & SLJIT_MEM) {
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE | LOAD_DATA, TMP_REG1, src, srcw, TMP_REG1));
+ src = TMP_REG1;
+ }
+
+ FAIL_IF(softfloat_call_with_args(compiler, arg_types, &src));
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+
+ FAIL_IF(sljit_emit_ijump(compiler, type, src, srcw));
+
+ return softfloat_post_call_with_args(compiler, arg_types);
+#else /* !__SOFTFP__ */
+ FAIL_IF(hardfloat_call_with_args(compiler, arg_types));
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+
+ return sljit_emit_ijump(compiler, type, src, srcw);
+#endif /* __SOFTFP__ */
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 type)
+{
+ sljit_s32 dst_reg, flags = GET_ALL_FLAGS(op);
+ sljit_uw cc, ins;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+
+ op = GET_OPCODE(op);
+ cc = get_cc(type & 0xff);
+ dst_reg = FAST_IS_REG(dst) ? dst : TMP_REG1;
+
+ if (op < SLJIT_ADD) {
+ FAIL_IF(push_inst(compiler, MOV | RD(dst_reg) | SRC2_IMM | 0));
+ FAIL_IF(push_inst(compiler, ((MOV | RD(dst_reg) | SRC2_IMM | 1) & ~COND_MASK) | cc));
+ if (dst & SLJIT_MEM)
+ return emit_op_mem(compiler, WORD_SIZE, TMP_REG1, dst, dstw, TMP_REG2);
+ return SLJIT_SUCCESS;
+ }
+
+ ins = (op == SLJIT_AND ? AND : (op == SLJIT_OR ? ORR : EOR));
+
+ if (dst & SLJIT_MEM)
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE | LOAD_DATA, TMP_REG1, dst, dstw, TMP_REG2));
+
+ FAIL_IF(push_inst(compiler, ((ins | RD(dst_reg) | RN(dst_reg) | SRC2_IMM | 1) & ~COND_MASK) | cc));
+
+ if (op == SLJIT_AND)
+ FAIL_IF(push_inst(compiler, ((ins | RD(dst_reg) | RN(dst_reg) | SRC2_IMM | 0) & ~COND_MASK) | (cc ^ 0x10000000)));
+
+ if (dst & SLJIT_MEM)
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, dst, dstw, TMP_REG2));
+
+ if (flags & SLJIT_SET_Z)
+ return push_inst(compiler, MOV | SET_FLAGS | RD(TMP_REG2) | RM(dst_reg));
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_cmov(struct sljit_compiler *compiler, sljit_s32 type,
+ sljit_s32 dst_reg,
+ sljit_s32 src, sljit_sw srcw)
+{
+ sljit_uw cc, tmp;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_cmov(compiler, type, dst_reg, src, srcw));
+
+ dst_reg &= ~SLJIT_I32_OP;
+
+ cc = get_cc(type & 0xff);
+
+ if (SLJIT_UNLIKELY(src & SLJIT_IMM)) {
+ tmp = get_imm(srcw);
+ if (tmp)
+ return push_inst(compiler, ((MOV | RD(dst_reg) | tmp) & ~COND_MASK) | cc);
+
+ tmp = get_imm(~srcw);
+ if (tmp)
+ return push_inst(compiler, ((MVN | RD(dst_reg) | tmp) & ~COND_MASK) | cc);
+
+#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+ tmp = (sljit_uw) srcw;
+ FAIL_IF(push_inst(compiler, (MOVW & ~COND_MASK) | cc | RD(dst_reg) | ((tmp << 4) & 0xf0000) | (tmp & 0xfff)));
+ if (tmp <= 0xffff)
+ return SLJIT_SUCCESS;
+ return push_inst(compiler, (MOVT & ~COND_MASK) | cc | RD(dst_reg) | ((tmp >> 12) & 0xf0000) | ((tmp >> 16) & 0xfff));
+#else
+ FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
+ src = TMP_REG1;
+#endif
+ }
+
+ return push_inst(compiler, ((MOV | RD(dst_reg) | RM(src)) & ~COND_MASK) | cc);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_mem(struct sljit_compiler *compiler, sljit_s32 type,
+ sljit_s32 reg,
+ sljit_s32 mem, sljit_sw memw)
+{
+ sljit_s32 flags;
+ sljit_uw is_type1_transfer, inst;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_mem(compiler, type, reg, mem, memw));
+
+ is_type1_transfer = 1;
+
+ switch (type & 0xff) {
+ case SLJIT_MOV:
+ case SLJIT_MOV_U32:
+ case SLJIT_MOV_S32:
+ case SLJIT_MOV_P:
+ flags = WORD_SIZE;
+ break;
+ case SLJIT_MOV_U8:
+ flags = BYTE_SIZE;
+ break;
+ case SLJIT_MOV_S8:
+ if (!(type & SLJIT_MEM_STORE))
+ is_type1_transfer = 0;
+ flags = BYTE_SIZE | SIGNED;
+ break;
+ case SLJIT_MOV_U16:
+ is_type1_transfer = 0;
+ flags = HALF_SIZE;
+ break;
+ case SLJIT_MOV_S16:
+ is_type1_transfer = 0;
+ flags = HALF_SIZE | SIGNED;
+ break;
+ default:
+ SLJIT_UNREACHABLE();
+ flags = WORD_SIZE;
+ break;
+ }
+
+ if (!(type & SLJIT_MEM_STORE))
+ flags |= LOAD_DATA;
+
+ SLJIT_ASSERT(is_type1_transfer == !!IS_TYPE1_TRANSFER(flags));
+
+ if (SLJIT_UNLIKELY(mem & OFFS_REG_MASK)) {
+ if (!is_type1_transfer && memw != 0)
+ return SLJIT_ERR_UNSUPPORTED;
+ }
+ else {
+ if (is_type1_transfer) {
+ if (memw > 4095 && memw < -4095)
+ return SLJIT_ERR_UNSUPPORTED;
+ }
+ else {
+ if (memw > 255 && memw < -255)
+ return SLJIT_ERR_UNSUPPORTED;
+ }
+ }
+
+ if (type & SLJIT_MEM_SUPP)
+ return SLJIT_SUCCESS;
+
+ if (SLJIT_UNLIKELY(mem & OFFS_REG_MASK)) {
+ memw &= 0x3;
+
+ inst = EMIT_DATA_TRANSFER(flags, 1, reg, mem & REG_MASK, RM(OFFS_REG(mem)) | (memw << 7));
+
+ if (is_type1_transfer)
+ inst |= (1 << 25);
+
+ if (type & SLJIT_MEM_PRE)
+ inst |= (1 << 21);
+ else
+ inst ^= (1 << 24);
+
+ return push_inst(compiler, inst);
+ }
+
+ inst = EMIT_DATA_TRANSFER(flags, 0, reg, mem & REG_MASK, 0);
+
+ if (type & SLJIT_MEM_PRE)
+ inst |= (1 << 21);
+ else
+ inst ^= (1 << 24);
+
+ if (is_type1_transfer) {
+ if (memw >= 0)
+ inst |= (1 << 23);
+ else
+ memw = -memw;
+
+ return push_inst(compiler, inst | memw);
+ }
+
+ if (memw >= 0)
+ inst |= (1 << 23);
+ else
+ memw = -memw;
+
+ return push_inst(compiler, inst | TYPE2_TRANSFER_IMM(memw));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
+{
+ struct sljit_const *const_;
+ sljit_s32 reg;
+
+ CHECK_ERROR_PTR();
+ CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+
+ const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
+ PTR_FAIL_IF(!const_);
+
+ reg = SLOW_IS_REG(dst) ? dst : TMP_REG2;
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ PTR_FAIL_IF(push_inst_with_unique_literal(compiler, EMIT_DATA_TRANSFER(WORD_SIZE | LOAD_DATA, 1, reg, TMP_PC, 0), init_value));
+ compiler->patches++;
+#else
+ PTR_FAIL_IF(emit_imm(compiler, reg, init_value));
+#endif
+ set_const(const_, compiler);
+
+ if (dst & SLJIT_MEM)
+ PTR_FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG2, dst, dstw, TMP_REG1));
+ return const_;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_target, sljit_sw executable_offset)
+{
+ inline_set_jump_addr(addr, executable_offset, new_target, 1);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant, sljit_sw executable_offset)
+{
+ inline_set_const(addr, executable_offset, new_constant, 1);
+}
projects / ossec-hids.git / blobdiff