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-rw-r--r--sljit/sljitNativeARM_32.c2524
1 files changed, 2524 insertions, 0 deletions
diff --git a/sljit/sljitNativeARM_32.c b/sljit/sljitNativeARM_32.c
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+++ b/sljit/sljitNativeARM_32.c
@@ -0,0 +1,2524 @@
+/*
+ * 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(void)
+{
+#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+ return "ARMv7" SLJIT_CPUINFO;
+#elif (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ return "ARMv5" SLJIT_CPUINFO;
+#else
+#error "Internal error: Unknown ARM architecture"
+#endif
+}
+
+/* Last register + 1. */
+#define TMP_REG1 (SLJIT_NO_REGISTERS + 1)
+#define TMP_REG2 (SLJIT_NO_REGISTERS + 2)
+#define TMP_REG3 (SLJIT_NO_REGISTERS + 3)
+#define TMP_PC (SLJIT_NO_REGISTERS + 4)
+
+#define TMP_FREG1 (0)
+#define TMP_FREG2 (SLJIT_FLOAT_REG6 + 1)
+
+/* 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_si)sizeof(sljit_uw)) - (CONST_POOL_ALIGNMENT - 1))
+
+/* See sljit_emit_enter and sljit_emit_op0 if you want to change them. */
+static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 5] = {
+ 0, 0, 1, 2, 10, 11, 4, 5, 6, 7, 8, 13, 3, 12, 14, 15
+};
+
+#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
+
+/* DP - Data Processing instruction (use with EMIT_DATA_PROCESS_INS). */
+#define ADC_DP 0x5
+#define ADD_DP 0x4
+#define AND_DP 0x0
+#define B 0xea000000
+#define BIC_DP 0xe
+#define BL 0xeb000000
+#define BLX 0xe12fff30
+#define BX 0xe12fff10
+#define CLZ 0xe16f0f10
+#define CMP_DP 0xa
+#define BKPT 0xe1200070
+#define EOR_DP 0x1
+#define MOV_DP 0xd
+#define MUL 0xe0000090
+#define MVN_DP 0xf
+#define NOP 0xe1a00000
+#define ORR_DP 0xc
+#define PUSH 0xe92d0000
+#define POP 0xe8bd0000
+#define RSB_DP 0x3
+#define RSC_DP 0x7
+#define SBC_DP 0x6
+#define SMULL 0xe0c00090
+#define SUB_DP 0x2
+#define UMULL 0xe0800090
+#define VABS_F32 0xeeb00ac0
+#define VADD_F32 0xee300a00
+#define VCMP_F32 0xeeb40a40
+#define VDIV_F32 0xee800a00
+#define VMOV_F32 0xeeb00a40
+#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_si 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_si 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_si 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_si 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_ub* 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_si 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_si 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_si 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));
+ 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_si)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_si index;
+ sljit_si value;
+};
+
+static SLJIT_INLINE sljit_si resolve_const_pool_index(struct future_patch **first_patch, sljit_uw cpool_current_index, sljit_uw *cpool_start_address, sljit_uw *buf_ptr)
+{
+ sljit_si value;
+ struct future_patch *curr_patch, *prev_patch;
+
+ /* Using the values generated by patch_pc_relative_loads. */
+ if (!*first_patch)
+ value = (sljit_si)cpool_start_address[cpool_current_index];
+ else {
+ curr_patch = *first_patch;
+ prev_patch = 0;
+ while (1) {
+ if (!curr_patch) {
+ value = (sljit_si)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);
+ 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));
+ if (!curr_patch) {
+ while (*first_patch) {
+ curr_patch = *first_patch;
+ *first_patch = (*first_patch)->next;
+ SLJIT_FREE(curr_patch);
+ }
+ 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_si 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_si emit_imm(struct sljit_compiler *compiler, sljit_si 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_si detect_jump_type(struct sljit_jump *jump, sljit_uw *code_ptr, sljit_uw *code)
+{
+ 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));
+ 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);
+ 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 addr, sljit_uw new_addr, sljit_si flush)
+{
+#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 mov_pc = ptr[1];
+ sljit_si bl = (mov_pc & 0x0000f000) != RD(TMP_PC);
+ sljit_sw diff = (sljit_sw)(((sljit_sw)new_addr - (sljit_sw)(inst + 2)) >> 2);
+
+ if (diff <= 0x7fffff && diff >= -0x800000) {
+ /* Turn to branch. */
+ if (!bl) {
+ inst[0] = (mov_pc & COND_MASK) | (B - CONDITIONAL) | (diff & 0xffffff);
+ if (flush) {
+ SLJIT_CACHE_FLUSH(inst, inst + 1);
+ }
+ } else {
+ inst[0] = (mov_pc & COND_MASK) | (BL - CONDITIONAL) | (diff & 0xffffff);
+ inst[1] = NOP;
+ if (flush) {
+ 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) {
+ SLJIT_CACHE_FLUSH(inst, inst + 1);
+ }
+ } else {
+ inst[1] = BLX | RM(TMP_REG1);
+ if (flush) {
+ SLJIT_CACHE_FLUSH(inst, inst + 2);
+ }
+ }
+ }
+ *ptr = new_addr;
+ }
+#else
+ sljit_uw *inst = (sljit_uw*)addr;
+ 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) {
+ 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 new_constant, sljit_si flush)
+{
+#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) {
+ SLJIT_CACHE_FLUSH(inst, inst + 1);
+ }
+ return;
+ }
+
+ src2 = get_imm(~new_constant);
+ if (src2) {
+ *inst = 0xe3e00000 | (ldr_literal & 0xf000) | src2;
+ if (flush) {
+ 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) {
+ 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) {
+ 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;
+#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_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;
+
+ label = compiler->labels;
+ jump = compiler->jumps;
+ const_ = compiler->consts;
+
+ if (label && label->size == 0) {
+ label->addr = (sljit_uw)code;
+ label->size = 0;
+ 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(&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)code_ptr;
+ 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))
+ code_ptr--;
+ jump->addr = (sljit_uw)code_ptr;
+#else
+ jump->addr = (sljit_uw)(code_ptr - 2);
+ if (detect_jump_type(jump, code_ptr, code))
+ code_ptr -= 2;
+#endif
+ jump = jump->next;
+ }
+ if (label && label->size == word_count) {
+ /* code_ptr can be affected above. */
+ label->addr = (sljit_uw)(code_ptr + 1);
+ 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(&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) {
+ if (!(jump->flags & JUMP_ADDR)) {
+ SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+ SLJIT_ASSERT(((sljit_sw)jump->u.label->addr - (sljit_sw)(buf_ptr + 2)) <= 0x01ffffff && ((sljit_sw)jump->u.label->addr - (sljit_sw)(buf_ptr + 2)) >= -0x02000000);
+ *buf_ptr |= (((sljit_sw)jump->u.label->addr - (sljit_sw)(buf_ptr + 2)) >> 2) & 0x00ffffff;
+ }
+ else {
+ SLJIT_ASSERT(((sljit_sw)jump->u.target - (sljit_sw)(buf_ptr + 2)) <= 0x01ffffff && ((sljit_sw)jump->u.target - (sljit_sw)(buf_ptr + 2)) >= -0x02000000);
+ *buf_ptr |= (((sljit_sw)jump->u.target - (sljit_sw)(buf_ptr + 2)) >> 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, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
+ code_ptr += 2;
+#else
+ inline_set_jump_addr((sljit_uw)buf_ptr, (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, (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, *buf_ptr, 0);
+ code_ptr += 2;
+
+ const_ = const_->next;
+ }
+#endif
+
+ SLJIT_ASSERT(code_ptr - code <= (sljit_si)size);
+
+ compiler->error = SLJIT_ERR_COMPILED;
+ compiler->executable_size = (code_ptr - code) * sizeof(sljit_uw);
+ SLJIT_CACHE_FLUSH(code, code_ptr);
+ return code;
+}
+
+/* --------------------------------------------------------------------- */
+/* Entry, exit */
+/* --------------------------------------------------------------------- */
+
+/* emit_op inp_flags.
+ WRITE_BACK must be the first, since it is a flag. */
+#define WRITE_BACK 0x01
+#define ALLOW_IMM 0x02
+#define ALLOW_INV_IMM 0x04
+#define ALLOW_ANY_IMM (ALLOW_IMM | ALLOW_INV_IMM)
+#define ARG_TEST 0x08
+
+/* Creates an index in data_transfer_insts array. */
+#define WORD_DATA 0x00
+#define BYTE_DATA 0x10
+#define HALF_DATA 0x20
+#define SIGNED_DATA 0x40
+#define LOAD_DATA 0x80
+
+#define EMIT_INSTRUCTION(inst) \
+ FAIL_IF(push_inst(compiler, (inst)))
+
+/* Condition: AL. */
+#define EMIT_DATA_PROCESS_INS(opcode, set_flags, dst, src1, src2) \
+ (0xe0000000 | ((opcode) << 21) | (set_flags) | RD(dst) | RN(src1) | (src2))
+
+static sljit_si emit_op(struct sljit_compiler *compiler, sljit_si op, sljit_si inp_flags,
+ sljit_si dst, sljit_sw dstw,
+ sljit_si src1, sljit_sw src1w,
+ sljit_si src2, sljit_sw src2w);
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_enter(struct sljit_compiler *compiler, sljit_si args, sljit_si scratches, sljit_si saveds, sljit_si local_size)
+{
+ sljit_si size;
+ sljit_uw push;
+
+ CHECK_ERROR();
+ check_sljit_emit_enter(compiler, args, scratches, saveds, local_size);
+
+ compiler->scratches = scratches;
+ compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+ compiler->logical_local_size = local_size;
+#endif
+
+ /* Push saved registers, temporary registers
+ stmdb sp!, {..., lr} */
+ push = PUSH | (1 << 14);
+ if (scratches >= 5)
+ push |= 1 << 11;
+ if (scratches >= 4)
+ push |= 1 << 10;
+ if (saveds >= 5)
+ push |= 1 << 8;
+ if (saveds >= 4)
+ push |= 1 << 7;
+ if (saveds >= 3)
+ push |= 1 << 6;
+ if (saveds >= 2)
+ push |= 1 << 5;
+ if (saveds >= 1)
+ push |= 1 << 4;
+ EMIT_INSTRUCTION(push);
+
+ /* Stack must be aligned to 8 bytes: */
+ size = (1 + saveds) * sizeof(sljit_uw);
+ if (scratches >= 4)
+ size += (scratches - 3) * sizeof(sljit_uw);
+ local_size += size;
+ local_size = (local_size + 7) & ~7;
+ local_size -= size;
+ compiler->local_size = local_size;
+ if (local_size > 0)
+ FAIL_IF(emit_op(compiler, SLJIT_SUB, ALLOW_IMM, SLJIT_LOCALS_REG, 0, SLJIT_LOCALS_REG, 0, SLJIT_IMM, local_size));
+
+ if (args >= 1)
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, SLJIT_SAVED_REG1, SLJIT_UNUSED, RM(SLJIT_SCRATCH_REG1)));
+ if (args >= 2)
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, SLJIT_SAVED_REG2, SLJIT_UNUSED, RM(SLJIT_SCRATCH_REG2)));
+ if (args >= 3)
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, SLJIT_SAVED_REG3, SLJIT_UNUSED, RM(SLJIT_SCRATCH_REG3)));
+
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, sljit_si args, sljit_si scratches, sljit_si saveds, sljit_si local_size)
+{
+ sljit_si size;
+
+ CHECK_ERROR_VOID();
+ check_sljit_set_context(compiler, args, scratches, saveds, local_size);
+
+ compiler->scratches = scratches;
+ compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+ compiler->logical_local_size = local_size;
+#endif
+
+ size = (1 + saveds) * sizeof(sljit_uw);
+ if (scratches >= 4)
+ size += (scratches - 3) * sizeof(sljit_uw);
+ local_size += size;
+ local_size = (local_size + 7) & ~7;
+ local_size -= size;
+ compiler->local_size = local_size;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_return(struct sljit_compiler *compiler, sljit_si op, sljit_si src, sljit_sw srcw)
+{
+ sljit_uw pop;
+
+ CHECK_ERROR();
+ 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_LOCALS_REG, 0, SLJIT_LOCALS_REG, 0, SLJIT_IMM, compiler->local_size));
+
+ pop = POP | (1 << 15);
+ /* Push saved registers, temporary registers
+ ldmia sp!, {..., pc} */
+ if (compiler->scratches >= 5)
+ pop |= 1 << 11;
+ if (compiler->scratches >= 4)
+ pop |= 1 << 10;
+ if (compiler->saveds >= 5)
+ pop |= 1 << 8;
+ if (compiler->saveds >= 4)
+ pop |= 1 << 7;
+ if (compiler->saveds >= 3)
+ pop |= 1 << 6;
+ if (compiler->saveds >= 2)
+ pop |= 1 << 5;
+ if (compiler->saveds >= 1)
+ pop |= 1 << 4;
+
+ return push_inst(compiler, pop);
+}
+
+/* --------------------------------------------------------------------- */
+/* Operators */
+/* --------------------------------------------------------------------- */
+
+/* s/l - store/load (1 bit)
+ u/s - signed/unsigned (1 bit)
+ w/b/h/N - word/byte/half/NOT allowed (2 bit)
+ It contans 16 items, but not all are different. */
+
+static sljit_sw 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 N */ 0x00000000 /* not allowed */,
+/* 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, wb, target, base1, base2) \
+ (data_transfer_insts[(type) >> 4] | ((add) << 23) | ((wb) << 21) | (reg_map[target] << 12) | (reg_map[base1] << 16) | (base2))
+/* Normal ldr/str instruction.
+ Type2: ldrsb, ldrh, ldrsh */
+#define IS_TYPE1_TRANSFER(type) \
+ (data_transfer_insts[(type) >> 4] & 0x04000000)
+#define TYPE2_TRANSFER_IMM(imm) \
+ (((imm) & 0xf) | (((imm) & 0xf0) << 4) | (1 << 22))
+
+/* flags: */
+ /* Arguments are swapped. */
+#define ARGS_SWAPPED 0x01
+ /* Inverted immediate. */
+#define INV_IMM 0x02
+ /* Source and destination is register. */
+#define REG_DEST 0x04
+#define REG_SOURCE 0x08
+ /* One instruction is enough. */
+#define FAST_DEST 0x10
+ /* Multiple instructions are required. */
+#define SLOW_DEST 0x20
+/* 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_DATA_PROCESS_INS_AND_RETURN(opcode) \
+ return push_inst(compiler, EMIT_DATA_PROCESS_INS(opcode, flags & SET_FLAGS, dst, src1, (src2 & SRC2_IMM) ? src2 : RM(src2)))
+
+#define EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(opcode, dst, src1, src2) \
+ return push_inst(compiler, EMIT_DATA_PROCESS_INS(opcode, flags & SET_FLAGS, dst, src1, src2))
+
+#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, EMIT_DATA_PROCESS_INS(MOV_DP, flags & SET_FLAGS, dst, SLJIT_UNUSED, (compiler->shift_imm << 7) | (opcode << 5) | reg_map[src2])); \
+ return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, flags & SET_FLAGS, dst, SLJIT_UNUSED, reg_map[src2])); \
+ } \
+ return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, flags & SET_FLAGS, dst, SLJIT_UNUSED, (reg_map[(flags & ARGS_SWAPPED) ? src1 : src2] << 8) | (opcode << 5) | 0x10 | ((flags & ARGS_SWAPPED) ? reg_map[src2] : reg_map[src1])));
+
+static SLJIT_INLINE sljit_si emit_single_op(struct sljit_compiler *compiler, sljit_si op, sljit_si flags,
+ sljit_si dst, sljit_si src1, sljit_si src2)
+{
+ sljit_sw mul_inst;
+
+ switch (GET_OPCODE(op)) {
+ case SLJIT_MOV:
+ SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
+ if (dst != src2) {
+ if (src2 & SRC2_IMM) {
+ if (flags & INV_IMM)
+ EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
+ EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
+ }
+ EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, reg_map[src2]);
+ }
+ return SLJIT_SUCCESS;
+
+ case SLJIT_MOV_UB:
+ case SLJIT_MOV_SB:
+ SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
+ if ((flags & (REG_DEST | REG_SOURCE)) == (REG_DEST | REG_SOURCE)) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ if (op == SLJIT_MOV_UB)
+ return push_inst(compiler, EMIT_DATA_PROCESS_INS(AND_DP, 0, dst, src2, SRC2_IMM | 0xff));
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (24 << 7) | reg_map[src2]));
+ return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (24 << 7) | (op == SLJIT_MOV_UB ? 0x20 : 0x40) | reg_map[dst]));
+#else
+ return push_inst(compiler, (op == SLJIT_MOV_UB ? UXTB : SXTB) | RD(dst) | RM(src2));
+#endif
+ }
+ else if (dst != src2) {
+ SLJIT_ASSERT(src2 & SRC2_IMM);
+ if (flags & INV_IMM)
+ EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
+ EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
+ }
+ return SLJIT_SUCCESS;
+
+ case SLJIT_MOV_UH:
+ case SLJIT_MOV_SH:
+ SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
+ if ((flags & (REG_DEST | REG_SOURCE)) == (REG_DEST | REG_SOURCE)) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (16 << 7) | reg_map[src2]));
+ return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (16 << 7) | (op == SLJIT_MOV_UH ? 0x20 : 0x40) | reg_map[dst]));
+#else
+ return push_inst(compiler, (op == SLJIT_MOV_UH ? UXTH : SXTH) | RD(dst) | RM(src2));
+#endif
+ }
+ else if (dst != src2) {
+ SLJIT_ASSERT(src2 & SRC2_IMM);
+ if (flags & INV_IMM)
+ EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
+ EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
+ }
+ return SLJIT_SUCCESS;
+
+ case SLJIT_NOT:
+ if (src2 & SRC2_IMM) {
+ if (flags & INV_IMM)
+ EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
+ EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
+ }
+ EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, 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)));
+ if (flags & SET_FLAGS)
+ EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(CMP_DP, SLJIT_UNUSED, dst, SRC2_IMM);
+ return SLJIT_SUCCESS;
+
+ case SLJIT_ADD:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ EMIT_DATA_PROCESS_INS_AND_RETURN(ADD_DP);
+
+ case SLJIT_ADDC:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ EMIT_DATA_PROCESS_INS_AND_RETURN(ADC_DP);
+
+ case SLJIT_SUB:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ if (!(flags & ARGS_SWAPPED))
+ EMIT_DATA_PROCESS_INS_AND_RETURN(SUB_DP);
+ EMIT_DATA_PROCESS_INS_AND_RETURN(RSB_DP);
+
+ case SLJIT_SUBC:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ if (!(flags & ARGS_SWAPPED))
+ EMIT_DATA_PROCESS_INS_AND_RETURN(SBC_DP);
+ EMIT_DATA_PROCESS_INS_AND_RETURN(RSC_DP);
+
+ case SLJIT_MUL:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ SLJIT_ASSERT(!(src2 & SRC2_IMM));
+ if (SLJIT_UNLIKELY(op & SLJIT_SET_O))
+ mul_inst = SMULL | (reg_map[TMP_REG3] << 16) | (reg_map[dst] << 12);
+ else
+ mul_inst = MUL | (reg_map[dst] << 16);
+
+ if (dst != src2)
+ FAIL_IF(push_inst(compiler, mul_inst | (reg_map[src1] << 8) | reg_map[src2]));
+ else if (dst != src1)
+ FAIL_IF(push_inst(compiler, mul_inst | (reg_map[src2] << 8) | reg_map[src1]));
+ else {
+ /* Rm and Rd must not be the same register. */
+ SLJIT_ASSERT(dst != TMP_REG1);
+ FAIL_IF(push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG1, SLJIT_UNUSED, reg_map[src2])));
+ FAIL_IF(push_inst(compiler, mul_inst | (reg_map[src2] << 8) | reg_map[TMP_REG1]));
+ }
+
+ if (!(op & SLJIT_SET_O))
+ return SLJIT_SUCCESS;
+
+ /* We need to use TMP_REG3. */
+ compiler->cache_arg = 0;
+ compiler->cache_argw = 0;
+ /* cmp TMP_REG2, dst asr #31. */
+ return push_inst(compiler, EMIT_DATA_PROCESS_INS(CMP_DP, SET_FLAGS, SLJIT_UNUSED, TMP_REG3, RM(dst) | 0xfc0));
+
+ case SLJIT_AND:
+ if (!(flags & INV_IMM))
+ EMIT_DATA_PROCESS_INS_AND_RETURN(AND_DP);
+ EMIT_DATA_PROCESS_INS_AND_RETURN(BIC_DP);
+
+ case SLJIT_OR:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ EMIT_DATA_PROCESS_INS_AND_RETURN(ORR_DP);
+
+ case SLJIT_XOR:
+ SLJIT_ASSERT(!(flags & INV_IMM));
+ EMIT_DATA_PROCESS_INS_AND_RETURN(EOR_DP);
+
+ 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_ASSERT_STOP();
+ return SLJIT_SUCCESS;
+}
+
+#undef EMIT_DATA_PROCESS_INS_AND_RETURN
+#undef EMIT_FULL_DATA_PROCESS_INS_AND_RETURN
+#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_si 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_si generate_int(struct sljit_compiler *compiler, sljit_si reg, sljit_uw imm, sljit_si positive)
+{
+ sljit_uw mask;
+ sljit_uw imm1;
+ sljit_uw imm2;
+ sljit_si 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;
+ }
+
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(positive ? MOV_DP : MVN_DP, 0, reg, SLJIT_UNUSED, imm1));
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(positive ? ORR_DP : BIC_DP, 0, reg, reg, imm2));
+ return 1;
+}
+#endif
+
+static sljit_si load_immediate(struct sljit_compiler *compiler, sljit_si 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) {
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, reg, SLJIT_UNUSED, tmp));
+ return SLJIT_SUCCESS;
+ }
+
+ tmp = get_imm(~imm);
+ if (tmp) {
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MVN_DP, 0, reg, SLJIT_UNUSED, tmp));
+ return SLJIT_SUCCESS;
+ }
+
+#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_DATA | LOAD_DATA, 1, 0, reg, TMP_PC, 0), imm);
+#else
+ return emit_imm(compiler, reg, imm);
+#endif
+}
+
+/* Helper function. Dst should be reg + value, using at most 1 instruction, flags does not set. */
+static sljit_si emit_set_delta(struct sljit_compiler *compiler, sljit_si dst, sljit_si reg, sljit_sw value)
+{
+ if (value >= 0) {
+ value = get_imm(value);
+ if (value)
+ return push_inst(compiler, EMIT_DATA_PROCESS_INS(ADD_DP, 0, dst, reg, value));
+ }
+ else {
+ value = get_imm(-value);
+ if (value)
+ return push_inst(compiler, EMIT_DATA_PROCESS_INS(SUB_DP, 0, dst, reg, value));
+ }
+ return SLJIT_ERR_UNSUPPORTED;
+}
+
+/* Can perform an operation using at most 1 instruction. */
+static sljit_si getput_arg_fast(struct sljit_compiler *compiler, sljit_si inp_flags, sljit_si reg, sljit_si arg, sljit_sw argw)
+{
+ sljit_uw imm;
+
+ if (arg & SLJIT_IMM) {
+ imm = get_imm(argw);
+ if (imm) {
+ if (inp_flags & ARG_TEST)
+ return 1;
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, reg, SLJIT_UNUSED, imm));
+ return -1;
+ }
+ imm = get_imm(~argw);
+ if (imm) {
+ if (inp_flags & ARG_TEST)
+ return 1;
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MVN_DP, 0, reg, SLJIT_UNUSED, imm));
+ return -1;
+ }
+ return 0;
+ }
+
+ SLJIT_ASSERT(arg & SLJIT_MEM);
+
+ /* Fast loads/stores. */
+ if (!(arg & REG_MASK))
+ return 0;
+
+ if (arg & OFFS_REG_MASK) {
+ if ((argw & 0x3) != 0 && !IS_TYPE1_TRANSFER(inp_flags))
+ return 0;
+
+ if (inp_flags & ARG_TEST)
+ return 1;
+ EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & REG_MASK,
+ RM(OFFS_REG(arg)) | (IS_TYPE1_TRANSFER(inp_flags) ? SRC2_IMM : 0) | ((argw & 0x3) << 7)));
+ return -1;
+ }
+
+ if (IS_TYPE1_TRANSFER(inp_flags)) {
+ if (argw >= 0 && argw <= 0xfff) {
+ if (inp_flags & ARG_TEST)
+ return 1;
+ EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & REG_MASK, argw));
+ return -1;
+ }
+ if (argw < 0 && argw >= -0xfff) {
+ if (inp_flags & ARG_TEST)
+ return 1;
+ EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 0, inp_flags & WRITE_BACK, reg, arg & REG_MASK, -argw));
+ return -1;
+ }
+ }
+ else {
+ if (argw >= 0 && argw <= 0xff) {
+ if (inp_flags & ARG_TEST)
+ return 1;
+ EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & REG_MASK, TYPE2_TRANSFER_IMM(argw)));
+ return -1;
+ }
+ if (argw < 0 && argw >= -0xff) {
+ if (inp_flags & ARG_TEST)
+ return 1;
+ argw = -argw;
+ EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 0, inp_flags & WRITE_BACK, reg, arg & REG_MASK, TYPE2_TRANSFER_IMM(argw)));
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/* See getput_arg below.
+ Note: can_cache is called only for binary operators. Those
+ operators always uses word arguments without write back. */
+static sljit_si can_cache(sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw)
+{
+ /* Immediate caching is not supported as it would be an operation on constant arguments. */
+ if (arg & SLJIT_IMM)
+ return 0;
+
+ /* Always a simple operation. */
+ if (arg & OFFS_REG_MASK)
+ return 0;
+
+ if (!(arg & REG_MASK)) {
+ /* Immediate access. */
+ if ((next_arg & SLJIT_MEM) && ((sljit_uw)argw - (sljit_uw)next_argw <= 0xfff || (sljit_uw)next_argw - (sljit_uw)argw <= 0xfff))
+ return 1;
+ return 0;
+ }
+
+ if (argw <= 0xfffff && argw >= -0xfffff)
+ return 0;
+
+ if (argw == next_argw && (next_arg & SLJIT_MEM))
+ return 1;
+
+ if (arg == next_arg && ((sljit_uw)argw - (sljit_uw)next_argw <= 0xfff || (sljit_uw)next_argw - (sljit_uw)argw <= 0xfff))
+ return 1;
+
+ return 0;
+}
+
+#define GETPUT_ARG_DATA_TRANSFER(add, wb, target, base, imm) \
+ if (max_delta & 0xf00) \
+ FAIL_IF(push_inst(compiler, EMIT_DATA_TRANSFER(inp_flags, add, wb, target, base, imm))); \
+ else \
+ FAIL_IF(push_inst(compiler, EMIT_DATA_TRANSFER(inp_flags, add, wb, target, base, TYPE2_TRANSFER_IMM(imm))));
+
+#define TEST_WRITE_BACK() \
+ if (inp_flags & WRITE_BACK) { \
+ tmp_r = arg & REG_MASK; \
+ if (reg == tmp_r) { \
+ /* This can only happen for stores */ \
+ /* since ldr reg, [reg, ...]! has no meaning */ \
+ SLJIT_ASSERT(!(inp_flags & LOAD_DATA)); \
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG3, SLJIT_UNUSED, RM(reg))); \
+ reg = TMP_REG3; \
+ } \
+ }
+
+/* Emit the necessary instructions. See can_cache above. */
+static sljit_si getput_arg(struct sljit_compiler *compiler, sljit_si inp_flags, sljit_si reg, sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw)
+{
+ sljit_si tmp_r;
+ sljit_sw max_delta;
+ sljit_sw sign;
+ sljit_uw imm;
+
+ if (arg & SLJIT_IMM) {
+ SLJIT_ASSERT(inp_flags & LOAD_DATA);
+ return load_immediate(compiler, reg, argw);
+ }
+
+ SLJIT_ASSERT(arg & SLJIT_MEM);
+
+ tmp_r = (inp_flags & LOAD_DATA) ? reg : TMP_REG3;
+ max_delta = IS_TYPE1_TRANSFER(inp_flags) ? 0xfff : 0xff;
+
+ if ((arg & REG_MASK) == SLJIT_UNUSED) {
+ /* Write back is not used. */
+ imm = (sljit_uw)(argw - compiler->cache_argw);
+ if ((compiler->cache_arg & SLJIT_IMM) && (imm <= (sljit_uw)max_delta || imm >= (sljit_uw)-max_delta)) {
+ if (imm <= (sljit_uw)max_delta) {
+ sign = 1;
+ argw = argw - compiler->cache_argw;
+ }
+ else {
+ sign = 0;
+ argw = compiler->cache_argw - argw;
+ }
+
+ GETPUT_ARG_DATA_TRANSFER(sign, 0, reg, TMP_REG3, argw);
+ return SLJIT_SUCCESS;
+ }
+
+ /* With write back, we can create some sophisticated loads, but
+ it is hard to decide whether we should convert downward (0s) or upward (1s). */
+ imm = (sljit_uw)(argw - next_argw);
+ if ((next_arg & SLJIT_MEM) && (imm <= (sljit_uw)max_delta || imm >= (sljit_uw)-max_delta)) {
+ SLJIT_ASSERT(inp_flags & LOAD_DATA);
+
+ compiler->cache_arg = SLJIT_IMM;
+ compiler->cache_argw = argw;
+ tmp_r = TMP_REG3;
+ }
+
+ FAIL_IF(load_immediate(compiler, tmp_r, argw));
+ GETPUT_ARG_DATA_TRANSFER(1, 0, reg, tmp_r, 0);
+ return SLJIT_SUCCESS;
+ }
+
+ if (arg & OFFS_REG_MASK) {
+ SLJIT_ASSERT((argw & 0x3) && !(max_delta & 0xf00));
+ if (inp_flags & WRITE_BACK)
+ tmp_r = arg & REG_MASK;
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, tmp_r, arg & REG_MASK, RM(OFFS_REG(arg)) | ((argw & 0x3) << 7)));
+ EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, 0, reg, tmp_r, TYPE2_TRANSFER_IMM(0)));
+ return SLJIT_SUCCESS;
+ }
+
+ imm = (sljit_uw)(argw - compiler->cache_argw);
+ if (compiler->cache_arg == arg && imm <= (sljit_uw)max_delta) {
+ SLJIT_ASSERT(!(inp_flags & WRITE_BACK));
+ GETPUT_ARG_DATA_TRANSFER(1, 0, reg, TMP_REG3, imm);
+ return SLJIT_SUCCESS;
+ }
+ if (compiler->cache_arg == arg && imm >= (sljit_uw)-max_delta) {
+ SLJIT_ASSERT(!(inp_flags & WRITE_BACK));
+ imm = (sljit_uw)-(sljit_sw)imm;
+ GETPUT_ARG_DATA_TRANSFER(0, 0, reg, TMP_REG3, imm);
+ return SLJIT_SUCCESS;
+ }
+
+ imm = get_imm(argw & ~max_delta);
+ if (imm) {
+ TEST_WRITE_BACK();
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, tmp_r, arg & REG_MASK, imm));
+ GETPUT_ARG_DATA_TRANSFER(1, inp_flags & WRITE_BACK, reg, tmp_r, argw & max_delta);
+ return SLJIT_SUCCESS;
+ }
+
+ imm = get_imm(-argw & ~max_delta);
+ if (imm) {
+ argw = -argw;
+ TEST_WRITE_BACK();
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(SUB_DP, 0, tmp_r, arg & REG_MASK, imm));
+ GETPUT_ARG_DATA_TRANSFER(0, inp_flags & WRITE_BACK, reg, tmp_r, argw & max_delta);
+ return SLJIT_SUCCESS;
+ }
+
+ if ((compiler->cache_arg & SLJIT_IMM) && compiler->cache_argw == argw) {
+ TEST_WRITE_BACK();
+ EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & REG_MASK, RM(TMP_REG3) | (max_delta & 0xf00 ? SRC2_IMM : 0)));
+ return SLJIT_SUCCESS;
+ }
+
+ if (argw == next_argw && (next_arg & SLJIT_MEM)) {
+ SLJIT_ASSERT(inp_flags & LOAD_DATA);
+ FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+
+ compiler->cache_arg = SLJIT_IMM;
+ compiler->cache_argw = argw;
+
+ TEST_WRITE_BACK();
+ EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & REG_MASK, RM(TMP_REG3) | (max_delta & 0xf00 ? SRC2_IMM : 0)));
+ return SLJIT_SUCCESS;
+ }
+
+ imm = (sljit_uw)(argw - next_argw);
+ if (arg == next_arg && !(inp_flags & WRITE_BACK) && (imm <= (sljit_uw)max_delta || imm >= (sljit_uw)-max_delta)) {
+ SLJIT_ASSERT(inp_flags & LOAD_DATA);
+ FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG3, TMP_REG3, reg_map[arg & REG_MASK]));
+
+ compiler->cache_arg = arg;
+ compiler->cache_argw = argw;
+
+ GETPUT_ARG_DATA_TRANSFER(1, 0, reg, TMP_REG3, 0);
+ return SLJIT_SUCCESS;
+ }
+
+ if ((arg & REG_MASK) == tmp_r) {
+ compiler->cache_arg = SLJIT_IMM;
+ compiler->cache_argw = argw;
+ tmp_r = TMP_REG3;
+ }
+
+ FAIL_IF(load_immediate(compiler, tmp_r, argw));
+ EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & REG_MASK, reg_map[tmp_r] | (max_delta & 0xf00 ? SRC2_IMM : 0)));
+ return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE sljit_si emit_op_mem(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw)
+{
+ if (getput_arg_fast(compiler, flags, reg, arg, argw))
+ return compiler->error;
+ compiler->cache_arg = 0;
+ compiler->cache_argw = 0;
+ return getput_arg(compiler, flags, reg, arg, argw, 0, 0);
+}
+
+static SLJIT_INLINE sljit_si emit_op_mem2(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg1, sljit_sw arg1w, sljit_si arg2, sljit_sw arg2w)
+{
+ if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
+ return compiler->error;
+ return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
+}
+
+static sljit_si emit_op(struct sljit_compiler *compiler, sljit_si op, sljit_si inp_flags,
+ sljit_si dst, sljit_sw dstw,
+ sljit_si src1, sljit_sw src1w,
+ sljit_si src2, sljit_sw 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. */
+
+ /* We prefers register and simple consts. */
+ sljit_si dst_r;
+ sljit_si src1_r;
+ sljit_si src2_r = 0;
+ sljit_si sugg_src2_r = TMP_REG2;
+ sljit_si flags = GET_FLAGS(op) ? SET_FLAGS : 0;
+
+ compiler->cache_arg = 0;
+ compiler->cache_argw = 0;
+
+ /* Destination check. */
+ if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) {
+ if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
+ return SLJIT_SUCCESS;
+ dst_r = TMP_REG2;
+ }
+ else if (FAST_IS_REG(dst)) {
+ dst_r = dst;
+ flags |= REG_DEST;
+ if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
+ sugg_src2_r = dst_r;
+ }
+ else {
+ SLJIT_ASSERT(dst & SLJIT_MEM);
+ if (getput_arg_fast(compiler, inp_flags | ARG_TEST, TMP_REG2, dst, dstw)) {
+ flags |= FAST_DEST;
+ dst_r = TMP_REG2;
+ }
+ else {
+ flags |= SLOW_DEST;
+ dst_r = 0;
+ }
+ }
+
+ /* Source 1. */
+ if (FAST_IS_REG(src1))
+ src1_r = src1;
+ else if (FAST_IS_REG(src2)) {
+ flags |= ARGS_SWAPPED;
+ src1_r = src2;
+ src2 = src1;
+ src2w = src1w;
+ }
+ else do { /* do { } while(0) is used because of breaks. */
+ src1_r = 0;
+ if ((inp_flags & ALLOW_ANY_IMM) && (src1 & SLJIT_IMM)) {
+ /* The second check will generate a hit. */
+ src2_r = get_imm(src1w);
+ if (src2_r) {
+ flags |= ARGS_SWAPPED;
+ src1 = src2;
+ src1w = src2w;
+ break;
+ }
+ if (inp_flags & ALLOW_INV_IMM) {
+ src2_r = get_imm(~src1w);
+ if (src2_r) {
+ flags |= ARGS_SWAPPED | INV_IMM;
+ src1 = src2;
+ src1w = src2w;
+ break;
+ }
+ }
+ if (GET_OPCODE(op) == SLJIT_ADD) {
+ src2_r = get_imm(-src1w);
+ if (src2_r) {
+ /* Note: ARGS_SWAPPED is intentionally not applied! */
+ src1 = src2;
+ src1w = src2w;
+ op = SLJIT_SUB | GET_ALL_FLAGS(op);
+ break;
+ }
+ }
+ }
+
+ if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w)) {
+ FAIL_IF(compiler->error);
+ src1_r = TMP_REG1;
+ }
+ } while (0);
+
+ /* Source 2. */
+ if (src2_r == 0) {
+ if (FAST_IS_REG(src2)) {
+ src2_r = src2;
+ flags |= REG_SOURCE;
+ if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
+ dst_r = src2_r;
+ }
+ else do { /* do { } while(0) is used because of breaks. */
+ if ((inp_flags & ALLOW_ANY_IMM) && (src2 & SLJIT_IMM)) {
+ src2_r = get_imm(src2w);
+ if (src2_r)
+ break;
+ if (inp_flags & ALLOW_INV_IMM) {
+ src2_r = get_imm(~src2w);
+ if (src2_r) {
+ flags |= INV_IMM;
+ break;
+ }
+ }
+ if (GET_OPCODE(op) == SLJIT_ADD) {
+ src2_r = get_imm(-src2w);
+ if (src2_r) {
+ op = SLJIT_SUB | GET_ALL_FLAGS(op);
+ flags &= ~ARGS_SWAPPED;
+ break;
+ }
+ }
+ if (GET_OPCODE(op) == SLJIT_SUB && !(flags & ARGS_SWAPPED)) {
+ src2_r = get_imm(-src2w);
+ if (src2_r) {
+ op = SLJIT_ADD | GET_ALL_FLAGS(op);
+ flags &= ~ARGS_SWAPPED;
+ break;
+ }
+ }
+ }
+
+ /* src2_r is 0. */
+ if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w)) {
+ FAIL_IF(compiler->error);
+ src2_r = sugg_src2_r;
+ }
+ } while (0);
+ }
+
+ /* src1_r, src2_r and dst_r can be zero (=unprocessed) or non-zero.
+ If they are zero, they must not be registers. */
+ if (src1_r == 0 && src2_r == 0 && dst_r == 0) {
+ if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
+ SLJIT_ASSERT(!(flags & ARGS_SWAPPED));
+ flags |= ARGS_SWAPPED;
+ FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src2, src2w, src1, src1w));
+ FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src1, src1w, dst, dstw));
+ }
+ else {
+ FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
+ FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
+ }
+ src1_r = TMP_REG1;
+ src2_r = TMP_REG2;
+ }
+ else if (src1_r == 0 && src2_r == 0) {
+ FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
+ src1_r = TMP_REG1;
+ }
+ else if (src1_r == 0 && dst_r == 0) {
+ FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
+ src1_r = TMP_REG1;
+ }
+ else if (src2_r == 0 && dst_r == 0) {
+ FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
+ src2_r = sugg_src2_r;
+ }
+
+ if (dst_r == 0)
+ dst_r = TMP_REG2;
+
+ if (src1_r == 0) {
+ FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, 0, 0));
+ src1_r = TMP_REG1;
+ }
+
+ if (src2_r == 0) {
+ FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, 0, 0));
+ src2_r = sugg_src2_r;
+ }
+
+ FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
+
+ if (flags & (FAST_DEST | SLOW_DEST)) {
+ if (flags & FAST_DEST)
+ FAIL_IF(getput_arg_fast(compiler, inp_flags, dst_r, dst, dstw));
+ else
+ FAIL_IF(getput_arg(compiler, inp_flags, dst_r, dst, dstw, 0, 0));
+ }
+ return SLJIT_SUCCESS;
+}
+
+#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_si sljit_emit_op0(struct sljit_compiler *compiler, sljit_si op)
+{
+ CHECK_ERROR();
+ check_sljit_emit_op0(compiler, op);
+
+ op = GET_OPCODE(op);
+ switch (op) {
+ case SLJIT_BREAKPOINT:
+ EMIT_INSTRUCTION(BKPT);
+ break;
+ case SLJIT_NOP:
+ EMIT_INSTRUCTION(NOP);
+ break;
+ case SLJIT_UMUL:
+ case SLJIT_SMUL:
+#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+ return push_inst(compiler, (op == SLJIT_UMUL ? UMULL : SMULL)
+ | (reg_map[SLJIT_SCRATCH_REG2] << 16)
+ | (reg_map[SLJIT_SCRATCH_REG1] << 12)
+ | (reg_map[SLJIT_SCRATCH_REG1] << 8)
+ | reg_map[SLJIT_SCRATCH_REG2]);
+#else
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG1, SLJIT_UNUSED, RM(SLJIT_SCRATCH_REG2)));
+ return push_inst(compiler, (op == SLJIT_UMUL ? UMULL : SMULL)
+ | (reg_map[SLJIT_SCRATCH_REG2] << 16)
+ | (reg_map[SLJIT_SCRATCH_REG1] << 12)
+ | (reg_map[SLJIT_SCRATCH_REG1] << 8)
+ | reg_map[TMP_REG1]);
+#endif
+ case SLJIT_UDIV:
+ case SLJIT_SDIV:
+ if (compiler->scratches >= 3)
+ EMIT_INSTRUCTION(0xe52d2008 /* str r2, [sp, #-8]! */);
+#if defined(__GNUC__)
+ FAIL_IF(sljit_emit_ijump(compiler, SLJIT_FAST_CALL, SLJIT_IMM,
+ (op == SLJIT_UDIV ? SLJIT_FUNC_OFFSET(__aeabi_uidivmod) : SLJIT_FUNC_OFFSET(__aeabi_idivmod))));
+#else
+#error "Software divmod functions are needed"
+#endif
+ if (compiler->scratches >= 3)
+ return push_inst(compiler, 0xe49d2008 /* ldr r2, [sp], #8 */);
+ return SLJIT_SUCCESS;
+ }
+
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op1(struct sljit_compiler *compiler, sljit_si op,
+ sljit_si dst, sljit_sw dstw,
+ sljit_si src, sljit_sw srcw)
+{
+ CHECK_ERROR();
+ check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+ ADJUST_LOCAL_OFFSET(src, srcw);
+
+ switch (GET_OPCODE(op)) {
+ case SLJIT_MOV:
+ case SLJIT_MOV_UI:
+ case SLJIT_MOV_SI:
+ case SLJIT_MOV_P:
+ return emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, src, srcw);
+
+ case SLJIT_MOV_UB:
+ return emit_op(compiler, SLJIT_MOV_UB, ALLOW_ANY_IMM | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw);
+
+ case SLJIT_MOV_SB:
+ return emit_op(compiler, SLJIT_MOV_SB, ALLOW_ANY_IMM | SIGNED_DATA | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sb)srcw : srcw);
+
+ case SLJIT_MOV_UH:
+ return emit_op(compiler, SLJIT_MOV_UH, ALLOW_ANY_IMM | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw);
+
+ case SLJIT_MOV_SH:
+ return emit_op(compiler, SLJIT_MOV_SH, ALLOW_ANY_IMM | SIGNED_DATA | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sh)srcw : srcw);
+
+ case SLJIT_MOVU:
+ case SLJIT_MOVU_UI:
+ case SLJIT_MOVU_SI:
+ case SLJIT_MOVU_P:
+ return emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
+
+ case SLJIT_MOVU_UB:
+ return emit_op(compiler, SLJIT_MOV_UB, ALLOW_ANY_IMM | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw);
+
+ case SLJIT_MOVU_SB:
+ return emit_op(compiler, SLJIT_MOV_SB, ALLOW_ANY_IMM | SIGNED_DATA | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sb)srcw : srcw);
+
+ case SLJIT_MOVU_UH:
+ return emit_op(compiler, SLJIT_MOV_UH, ALLOW_ANY_IMM | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw);
+
+ case SLJIT_MOVU_SH:
+ return emit_op(compiler, SLJIT_MOV_SH, ALLOW_ANY_IMM | SIGNED_DATA | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sh)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_DEBUG && SLJIT_DEBUG)
+ 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_si sljit_emit_op2(struct sljit_compiler *compiler, sljit_si op,
+ sljit_si dst, sljit_sw dstw,
+ sljit_si src1, sljit_sw src1w,
+ sljit_si src2, sljit_sw src2w)
+{
+ CHECK_ERROR();
+ 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);
+
+ 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_si sljit_get_register_index(sljit_si reg)
+{
+ check_sljit_get_register_index(reg);
+ return reg_map[reg];
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_float_register_index(sljit_si reg)
+{
+ check_sljit_get_float_register_index(reg);
+ return reg;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_custom(struct sljit_compiler *compiler,
+ void *instruction, sljit_si size)
+{
+ CHECK_ERROR();
+ check_sljit_emit_op_custom(compiler, instruction, size);
+ SLJIT_ASSERT(size == 4);
+
+ return push_inst(compiler, *(sljit_uw*)instruction);
+}
+
+/* --------------------------------------------------------------------- */
+/* Floating point operators */
+/* --------------------------------------------------------------------- */
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+
+/* 0 - no fpu
+ 1 - vfp */
+static sljit_si arm_fpu_type = -1;
+
+static void init_compiler(void)
+{
+ if (arm_fpu_type != -1)
+ return;
+
+ /* TODO: Only the OS can help to determine the correct fpu type. */
+ arm_fpu_type = 1;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_is_fpu_available(void)
+{
+#ifdef SLJIT_IS_FPU_AVAILABLE
+ return SLJIT_IS_FPU_AVAILABLE;
+#else
+ if (arm_fpu_type == -1)
+ init_compiler();
+ return arm_fpu_type;
+#endif
+}
+
+#else
+
+#define arm_fpu_type 1
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_is_fpu_available(void)
+{
+ /* Always available. */
+ return 1;
+}
+
+#endif
+
+#define FPU_LOAD (1 << 20)
+#define EMIT_FPU_DATA_TRANSFER(inst, add, base, freg, offs) \
+ ((inst) | ((add) << 23) | (reg_map[base] << 16) | (freg << 12) | (offs))
+#define EMIT_FPU_OPERATION(opcode, mode, dst, src1, src2) \
+ ((opcode) | (mode) | ((dst) << 12) | (src1) | ((src2) << 16))
+
+static sljit_si emit_fop_mem(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw)
+{
+ sljit_sw tmp;
+ sljit_uw imm;
+ sljit_sw inst = VSTR_F32 | (flags & (SLJIT_SINGLE_OP | FPU_LOAD));
+ SLJIT_ASSERT(arg & SLJIT_MEM);
+
+ if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG1, arg & REG_MASK, RM(OFFS_REG(arg)) | ((argw & 0x3) << 7)));
+ arg = SLJIT_MEM | TMP_REG1;
+ argw = 0;
+ }
+
+ /* Fast loads and stores. */
+ if ((arg & REG_MASK)) {
+ 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));
+ }
+
+ if (compiler->cache_arg == arg) {
+ tmp = argw - compiler->cache_argw;
+ if (!(tmp & ~0x3fc))
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 1, TMP_REG3, reg, tmp >> 2));
+ if (!(-tmp & ~0x3fc))
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 0, TMP_REG3, reg, -tmp >> 2));
+ if (emit_set_delta(compiler, TMP_REG3, TMP_REG3, tmp) != SLJIT_ERR_UNSUPPORTED) {
+ FAIL_IF(compiler->error);
+ compiler->cache_argw = argw;
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 1, TMP_REG3, reg, 0));
+ }
+ }
+
+ if (arg & REG_MASK) {
+ if (emit_set_delta(compiler, TMP_REG1, arg & REG_MASK, argw) != SLJIT_ERR_UNSUPPORTED) {
+ FAIL_IF(compiler->error);
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 1, TMP_REG1, reg, 0));
+ }
+ imm = get_imm(argw & ~0x3fc);
+ if (imm) {
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG1, arg & REG_MASK, imm));
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 1, TMP_REG1, reg, (argw & 0x3fc) >> 2));
+ }
+ imm = get_imm(-argw & ~0x3fc);
+ if (imm) {
+ argw = -argw;
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(SUB_DP, 0, TMP_REG1, arg & REG_MASK, imm));
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 0, TMP_REG1, reg, (argw & 0x3fc) >> 2));
+ }
+ }
+
+ compiler->cache_arg = arg;
+ compiler->cache_argw = argw;
+ if (arg & REG_MASK) {
+ FAIL_IF(load_immediate(compiler, TMP_REG1, argw));
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG3, arg & REG_MASK, reg_map[TMP_REG1]));
+ }
+ else
+ FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+
+ return push_inst(compiler, EMIT_FPU_DATA_TRANSFER(inst, 1, TMP_REG3, reg, 0));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop1(struct sljit_compiler *compiler, sljit_si op,
+ sljit_si dst, sljit_sw dstw,
+ sljit_si src, sljit_sw srcw)
+{
+ sljit_si dst_fr;
+
+ CHECK_ERROR();
+ check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
+ SLJIT_COMPILE_ASSERT((SLJIT_SINGLE_OP == 0x100), float_transfer_bit_error);
+
+ compiler->cache_arg = 0;
+ compiler->cache_argw = 0;
+ op ^= SLJIT_SINGLE_OP;
+
+ if (GET_OPCODE(op) == SLJIT_CMPD) {
+ if (dst & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_SINGLE_OP) | FPU_LOAD, TMP_FREG1, dst, dstw));
+ dst = TMP_FREG1;
+ }
+ if (src & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_SINGLE_OP) | FPU_LOAD, TMP_FREG2, src, srcw));
+ src = TMP_FREG2;
+ }
+ EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VCMP_F32, op & SLJIT_SINGLE_OP, dst, src, 0));
+ EMIT_INSTRUCTION(VMRS);
+ return SLJIT_SUCCESS;
+ }
+
+ dst_fr = FAST_IS_REG(dst) ? dst : TMP_FREG1;
+
+ if (src & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_SINGLE_OP) | FPU_LOAD, dst_fr, src, srcw));
+ src = dst_fr;
+ }
+
+ switch (GET_OPCODE(op)) {
+ case SLJIT_MOVD:
+ if (src != dst_fr && dst_fr != TMP_FREG1)
+ EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VMOV_F32, op & SLJIT_SINGLE_OP, dst_fr, src, 0));
+ break;
+ case SLJIT_NEGD:
+ EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VNEG_F32, op & SLJIT_SINGLE_OP, dst_fr, src, 0));
+ break;
+ case SLJIT_ABSD:
+ EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VABS_F32, op & SLJIT_SINGLE_OP, dst_fr, src, 0));
+ break;
+ }
+
+ if (dst_fr == TMP_FREG1) {
+ if (GET_OPCODE(op) == SLJIT_MOVD)
+ dst_fr = src;
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_SINGLE_OP), dst_fr, dst, dstw));
+ }
+
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop2(struct sljit_compiler *compiler, sljit_si op,
+ sljit_si dst, sljit_sw dstw,
+ sljit_si src1, sljit_sw src1w,
+ sljit_si src2, sljit_sw src2w)
+{
+ sljit_si dst_fr;
+
+ CHECK_ERROR();
+ check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+
+ compiler->cache_arg = 0;
+ compiler->cache_argw = 0;
+ op ^= SLJIT_SINGLE_OP;
+
+ dst_fr = FAST_IS_REG(dst) ? dst : TMP_FREG1;
+
+ if (src2 & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_SINGLE_OP) | FPU_LOAD, TMP_FREG2, src2, src2w));
+ src2 = TMP_FREG2;
+ }
+
+ if (src1 & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_SINGLE_OP) | FPU_LOAD, TMP_FREG1, src1, src1w));
+ src1 = TMP_FREG1;
+ }
+
+ switch (GET_OPCODE(op)) {
+ case SLJIT_ADDD:
+ EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VADD_F32, op & SLJIT_SINGLE_OP, dst_fr, src2, src1));
+ break;
+
+ case SLJIT_SUBD:
+ EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VSUB_F32, op & SLJIT_SINGLE_OP, dst_fr, src2, src1));
+ break;
+
+ case SLJIT_MULD:
+ EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VMUL_F32, op & SLJIT_SINGLE_OP, dst_fr, src2, src1));
+ break;
+
+ case SLJIT_DIVD:
+ EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VDIV_F32, op & SLJIT_SINGLE_OP, dst_fr, src2, src1));
+ break;
+ }
+
+ if (dst_fr == TMP_FREG1)
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_SINGLE_OP), TMP_FREG1, dst, dstw));
+
+ return SLJIT_SUCCESS;
+}
+
+#undef FPU_LOAD
+#undef EMIT_FPU_DATA_TRANSFER
+#undef EMIT_FPU_OPERATION
+
+/* --------------------------------------------------------------------- */
+/* Other instructions */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw)
+{
+ CHECK_ERROR();
+ check_sljit_emit_fast_enter(compiler, dst, dstw);
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+
+ /* For UNUSED dst. Uncommon, but possible. */
+ if (dst == SLJIT_UNUSED)
+ return SLJIT_SUCCESS;
+
+ if (FAST_IS_REG(dst))
+ return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, RM(TMP_REG3)));
+
+ /* Memory. */
+ if (getput_arg_fast(compiler, WORD_DATA, TMP_REG3, dst, dstw))
+ return compiler->error;
+ /* TMP_REG3 is used for caching. */
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG2, SLJIT_UNUSED, RM(TMP_REG3)));
+ compiler->cache_arg = 0;
+ compiler->cache_argw = 0;
+ return getput_arg(compiler, WORD_DATA, TMP_REG2, dst, dstw, 0, 0);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_si src, sljit_sw srcw)
+{
+ CHECK_ERROR();
+ check_sljit_emit_fast_return(compiler, src, srcw);
+ ADJUST_LOCAL_OFFSET(src, srcw);
+
+ if (FAST_IS_REG(src))
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG3, SLJIT_UNUSED, RM(src)));
+ else if (src & SLJIT_MEM) {
+ if (getput_arg_fast(compiler, WORD_DATA | LOAD_DATA, TMP_REG3, src, srcw))
+ FAIL_IF(compiler->error);
+ else {
+ compiler->cache_arg = 0;
+ compiler->cache_argw = 0;
+ FAIL_IF(getput_arg(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw, 0, 0));
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG3, SLJIT_UNUSED, RM(TMP_REG2)));
+ }
+ }
+ else if (src & SLJIT_IMM)
+ FAIL_IF(load_immediate(compiler, TMP_REG3, srcw));
+ return push_inst(compiler, BLX | RM(TMP_REG3));
+}
+
+/* --------------------------------------------------------------------- */
+/* Conditional instructions */
+/* --------------------------------------------------------------------- */
+
+static sljit_uw get_cc(sljit_si type)
+{
+ switch (type) {
+ case SLJIT_C_EQUAL:
+ case SLJIT_C_MUL_NOT_OVERFLOW:
+ case SLJIT_C_FLOAT_EQUAL:
+ return 0x00000000;
+
+ case SLJIT_C_NOT_EQUAL:
+ case SLJIT_C_MUL_OVERFLOW:
+ case SLJIT_C_FLOAT_NOT_EQUAL:
+ return 0x10000000;
+
+ case SLJIT_C_LESS:
+ case SLJIT_C_FLOAT_LESS:
+ return 0x30000000;
+
+ case SLJIT_C_GREATER_EQUAL:
+ case SLJIT_C_FLOAT_GREATER_EQUAL:
+ return 0x20000000;
+
+ case SLJIT_C_GREATER:
+ case SLJIT_C_FLOAT_GREATER:
+ return 0x80000000;
+
+ case SLJIT_C_LESS_EQUAL:
+ case SLJIT_C_FLOAT_LESS_EQUAL:
+ return 0x90000000;
+
+ case SLJIT_C_SIG_LESS:
+ return 0xb0000000;
+
+ case SLJIT_C_SIG_GREATER_EQUAL:
+ return 0xa0000000;
+
+ case SLJIT_C_SIG_GREATER:
+ return 0xc0000000;
+
+ case SLJIT_C_SIG_LESS_EQUAL:
+ return 0xd0000000;
+
+ case SLJIT_C_OVERFLOW:
+ case SLJIT_C_FLOAT_UNORDERED:
+ return 0x60000000;
+
+ case SLJIT_C_NOT_OVERFLOW:
+ case SLJIT_C_FLOAT_ORDERED:
+ return 0x70000000;
+
+ default: /* SLJIT_JUMP */
+ return 0xe0000000;
+ }
+}
+
+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);
+ return label;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_si type)
+{
+ struct sljit_jump *jump;
+
+ 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;
+
+ /* In ARM, we don't need to touch the arguments. */
+#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_DATA | LOAD_DATA, 1, 0,
+ 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;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_ijump(struct sljit_compiler *compiler, sljit_si type, sljit_si src, sljit_sw srcw)
+{
+ struct sljit_jump *jump;
+
+ CHECK_ERROR();
+ check_sljit_emit_ijump(compiler, type, src, srcw);
+ ADJUST_LOCAL_OFFSET(src, srcw);
+
+ /* In ARM, we don't need to touch the arguments. */
+ if (!(src & SLJIT_IMM)) {
+ if (FAST_IS_REG(src))
+ return push_inst(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RM(src));
+
+ SLJIT_ASSERT(src & SLJIT_MEM);
+ FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw));
+ return push_inst(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RM(TMP_REG2));
+ }
+
+ 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_DATA | LOAD_DATA, 1, 0, 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_si sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_si op,
+ sljit_si dst, sljit_sw dstw,
+ sljit_si src, sljit_sw srcw,
+ sljit_si type)
+{
+ sljit_si dst_r, flags = GET_ALL_FLAGS(op);
+ sljit_uw cc, ins;
+
+ CHECK_ERROR();
+ check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type);
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+ ADJUST_LOCAL_OFFSET(src, srcw);
+
+ if (dst == SLJIT_UNUSED)
+ return SLJIT_SUCCESS;
+
+ op = GET_OPCODE(op);
+ cc = get_cc(type);
+ dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
+
+ if (op < SLJIT_ADD) {
+ EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst_r, SLJIT_UNUSED, SRC2_IMM | 0));
+ EMIT_INSTRUCTION((EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst_r, SLJIT_UNUSED, SRC2_IMM | 1) & ~COND_MASK) | cc);
+ return (dst_r == TMP_REG2) ? emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw) : SLJIT_SUCCESS;
+ }
+
+ ins = (op == SLJIT_AND ? AND_DP : (op == SLJIT_OR ? ORR_DP : EOR_DP));
+ if ((op == SLJIT_OR || op == SLJIT_XOR) && FAST_IS_REG(dst) && dst == src) {
+ EMIT_INSTRUCTION((EMIT_DATA_PROCESS_INS(ins, 0, dst, dst, SRC2_IMM | 1) & ~COND_MASK) | cc);
+ /* The condition must always be set, even if the ORR/EOR is not executed above. */
+ return (flags & SLJIT_SET_E) ? push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, SET_FLAGS, TMP_REG1, SLJIT_UNUSED, RM(dst))) : SLJIT_SUCCESS;
+ }
+
+ compiler->cache_arg = 0;
+ compiler->cache_argw = 0;
+ if (src & SLJIT_MEM) {
+ FAIL_IF(emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw, dst, dstw));
+ src = TMP_REG1;
+ srcw = 0;
+ } else if (src & SLJIT_IMM) {
+ FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
+ src = TMP_REG1;
+ srcw = 0;
+ }
+
+ EMIT_INSTRUCTION((EMIT_DATA_PROCESS_INS(ins, 0, dst_r, src, SRC2_IMM | 1) & ~COND_MASK) | cc);
+ EMIT_INSTRUCTION((EMIT_DATA_PROCESS_INS(ins, 0, dst_r, src, SRC2_IMM | 0) & ~COND_MASK) | (cc ^ 0x10000000));
+ if (dst_r == TMP_REG2)
+ FAIL_IF(emit_op_mem2(compiler, WORD_DATA, TMP_REG2, dst, dstw, 0, 0));
+
+ return (flags & SLJIT_SET_E) ? push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, SET_FLAGS, TMP_REG1, SLJIT_UNUSED, RM(dst_r))) : SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw, sljit_sw init_value)
+{
+ struct sljit_const *const_;
+ sljit_si reg;
+
+ CHECK_ERROR_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_DATA | LOAD_DATA, 1, 0, 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_DATA, TMP_REG2, dst, dstw));
+ return const_;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
+{
+ inline_set_jump_addr(addr, new_addr, 1);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant)
+{
+ inline_set_const(addr, new_constant, 1);
+}