--- /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.
+ */
+
+SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void)
+{
+ return "ARM-64" SLJIT_CPUINFO;
+}
+
+/* Length of an instruction word */
+typedef sljit_u32 sljit_ins;
+
+#define TMP_ZERO (0)
+
+#define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2)
+#define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3)
+#define TMP_LR (SLJIT_NUMBER_OF_REGISTERS + 4)
+#define TMP_FP (SLJIT_NUMBER_OF_REGISTERS + 5)
+
+#define TMP_FREG1 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
+#define TMP_FREG2 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)
+
+/* r18 - platform register, currently not used */
+static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 8] = {
+ 31, 0, 1, 2, 3, 4, 5, 6, 7, 11, 12, 13, 14, 15, 16, 17, 8, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 31, 9, 10, 30, 29
+};
+
+static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = {
+ 0, 0, 1, 2, 3, 4, 5, 6, 7
+};
+
+#define W_OP (1 << 31)
+#define RD(rd) (reg_map[rd])
+#define RT(rt) (reg_map[rt])
+#define RN(rn) (reg_map[rn] << 5)
+#define RT2(rt2) (reg_map[rt2] << 10)
+#define RM(rm) (reg_map[rm] << 16)
+#define VD(vd) (freg_map[vd])
+#define VT(vt) (freg_map[vt])
+#define VN(vn) (freg_map[vn] << 5)
+#define VM(vm) (freg_map[vm] << 16)
+
+/* --------------------------------------------------------------------- */
+/* Instrucion forms */
+/* --------------------------------------------------------------------- */
+
+#define ADC 0x9a000000
+#define ADD 0x8b000000
+#define ADDE 0x8b200000
+#define ADDI 0x91000000
+#define AND 0x8a000000
+#define ANDI 0x92000000
+#define ASRV 0x9ac02800
+#define B 0x14000000
+#define B_CC 0x54000000
+#define BL 0x94000000
+#define BLR 0xd63f0000
+#define BR 0xd61f0000
+#define BRK 0xd4200000
+#define CBZ 0xb4000000
+#define CLZ 0xdac01000
+#define CSEL 0x9a800000
+#define CSINC 0x9a800400
+#define EOR 0xca000000
+#define EORI 0xd2000000
+#define FABS 0x1e60c000
+#define FADD 0x1e602800
+#define FCMP 0x1e602000
+#define FCVT 0x1e224000
+#define FCVTZS 0x9e780000
+#define FDIV 0x1e601800
+#define FMOV 0x1e604000
+#define FMUL 0x1e600800
+#define FNEG 0x1e614000
+#define FSUB 0x1e603800
+#define LDRI 0xf9400000
+#define LDP 0xa9400000
+#define LDP_PRE 0xa9c00000
+#define LDR_PRE 0xf8400c00
+#define LSLV 0x9ac02000
+#define LSRV 0x9ac02400
+#define MADD 0x9b000000
+#define MOVK 0xf2800000
+#define MOVN 0x92800000
+#define MOVZ 0xd2800000
+#define NOP 0xd503201f
+#define ORN 0xaa200000
+#define ORR 0xaa000000
+#define ORRI 0xb2000000
+#define RET 0xd65f0000
+#define SBC 0xda000000
+#define SBFM 0x93000000
+#define SCVTF 0x9e620000
+#define SDIV 0x9ac00c00
+#define SMADDL 0x9b200000
+#define SMULH 0x9b403c00
+#define STP 0xa9000000
+#define STP_PRE 0xa9800000
+#define STRB 0x38206800
+#define STRBI 0x39000000
+#define STRI 0xf9000000
+#define STR_FI 0x3d000000
+#define STR_FR 0x3c206800
+#define STUR_FI 0x3c000000
+#define STURBI 0x38000000
+#define SUB 0xcb000000
+#define SUBI 0xd1000000
+#define SUBS 0xeb000000
+#define UBFM 0xd3000000
+#define UDIV 0x9ac00800
+#define UMULH 0x9bc03c00
+
+/* dest_reg is the absolute name of the register
+ Useful for reordering instructions in the delay slot. */
+static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_ins ins)
+{
+ sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
+ FAIL_IF(!ptr);
+ *ptr = ins;
+ compiler->size++;
+ return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE sljit_s32 emit_imm64_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_uw imm)
+{
+ FAIL_IF(push_inst(compiler, MOVZ | RD(dst) | ((imm & 0xffff) << 5)));
+ FAIL_IF(push_inst(compiler, MOVK | RD(dst) | (((imm >> 16) & 0xffff) << 5) | (1 << 21)));
+ FAIL_IF(push_inst(compiler, MOVK | RD(dst) | (((imm >> 32) & 0xffff) << 5) | (2 << 21)));
+ return push_inst(compiler, MOVK | RD(dst) | ((imm >> 48) << 5) | (3 << 21));
+}
+
+static SLJIT_INLINE void modify_imm64_const(sljit_ins* inst, sljit_uw new_imm)
+{
+ sljit_s32 dst = inst[0] & 0x1f;
+ SLJIT_ASSERT((inst[0] & 0xffe00000) == MOVZ && (inst[1] & 0xffe00000) == (MOVK | (1 << 21)));
+ inst[0] = MOVZ | dst | ((new_imm & 0xffff) << 5);
+ inst[1] = MOVK | dst | (((new_imm >> 16) & 0xffff) << 5) | (1 << 21);
+ inst[2] = MOVK | dst | (((new_imm >> 32) & 0xffff) << 5) | (2 << 21);
+ inst[3] = MOVK | dst | ((new_imm >> 48) << 5) | (3 << 21);
+}
+
+static SLJIT_INLINE sljit_s32 detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code, sljit_sw executable_offset)
+{
+ sljit_sw diff;
+ sljit_uw target_addr;
+
+ if (jump->flags & SLJIT_REWRITABLE_JUMP) {
+ jump->flags |= PATCH_ABS64;
+ return 0;
+ }
+
+ if (jump->flags & JUMP_ADDR)
+ target_addr = jump->u.target;
+ else {
+ SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+ target_addr = (sljit_uw)(code + jump->u.label->size) + (sljit_uw)executable_offset;
+ }
+
+ diff = (sljit_sw)target_addr - (sljit_sw)(code_ptr + 4) - executable_offset;
+
+ if (jump->flags & IS_COND) {
+ diff += sizeof(sljit_ins);
+ if (diff <= 0xfffff && diff >= -0x100000) {
+ code_ptr[-5] ^= (jump->flags & IS_CBZ) ? (0x1 << 24) : 0x1;
+ jump->addr -= sizeof(sljit_ins);
+ jump->flags |= PATCH_COND;
+ return 5;
+ }
+ diff -= sizeof(sljit_ins);
+ }
+
+ if (diff <= 0x7ffffff && diff >= -0x8000000) {
+ jump->flags |= PATCH_B;
+ return 4;
+ }
+
+ if (target_addr <= 0xffffffffl) {
+ if (jump->flags & IS_COND)
+ code_ptr[-5] -= (2 << 5);
+ code_ptr[-2] = code_ptr[0];
+ return 2;
+ }
+
+ if (target_addr <= 0xffffffffffffl) {
+ if (jump->flags & IS_COND)
+ code_ptr[-5] -= (1 << 5);
+ jump->flags |= PATCH_ABS48;
+ code_ptr[-1] = code_ptr[0];
+ return 1;
+ }
+
+ jump->flags |= PATCH_ABS64;
+ return 0;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
+{
+ struct sljit_memory_fragment *buf;
+ sljit_ins *code;
+ sljit_ins *code_ptr;
+ sljit_ins *buf_ptr;
+ sljit_ins *buf_end;
+ sljit_uw word_count;
+ sljit_sw executable_offset;
+ sljit_uw addr;
+ sljit_s32 dst;
+
+ 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);
+
+ code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins));
+ PTR_FAIL_WITH_EXEC_IF(code);
+ buf = compiler->buf;
+
+ code_ptr = code;
+ word_count = 0;
+ executable_offset = SLJIT_EXEC_OFFSET(code);
+
+ label = compiler->labels;
+ jump = compiler->jumps;
+ const_ = compiler->consts;
+
+ do {
+ buf_ptr = (sljit_ins*)buf->memory;
+ buf_end = buf_ptr + (buf->used_size >> 2);
+ do {
+ *code_ptr = *buf_ptr++;
+ /* 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 (label && label->size == word_count) {
+ label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
+ label->size = code_ptr - code;
+ label = label->next;
+ }
+ if (jump && jump->addr == word_count) {
+ jump->addr = (sljit_uw)(code_ptr - 4);
+ code_ptr -= detect_jump_type(jump, code_ptr, code, executable_offset);
+ jump = jump->next;
+ }
+ if (const_ && const_->addr == word_count) {
+ const_->addr = (sljit_uw)code_ptr;
+ const_ = const_->next;
+ }
+ code_ptr ++;
+ word_count ++;
+ } while (buf_ptr < buf_end);
+
+ buf = buf->next;
+ } while (buf);
+
+ if (label && label->size == word_count) {
+ label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
+ label->size = code_ptr - code;
+ label = label->next;
+ }
+
+ SLJIT_ASSERT(!label);
+ SLJIT_ASSERT(!jump);
+ SLJIT_ASSERT(!const_);
+ SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size);
+
+ jump = compiler->jumps;
+ while (jump) {
+ do {
+ addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
+ buf_ptr = (sljit_ins *)jump->addr;
+
+ if (jump->flags & PATCH_B) {
+ addr = (sljit_sw)(addr - (sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset)) >> 2;
+ SLJIT_ASSERT((sljit_sw)addr <= 0x1ffffff && (sljit_sw)addr >= -0x2000000);
+ buf_ptr[0] = ((jump->flags & IS_BL) ? BL : B) | (addr & 0x3ffffff);
+ if (jump->flags & IS_COND)
+ buf_ptr[-1] -= (4 << 5);
+ break;
+ }
+ if (jump->flags & PATCH_COND) {
+ addr = (sljit_sw)(addr - (sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset)) >> 2;
+ SLJIT_ASSERT((sljit_sw)addr <= 0x3ffff && (sljit_sw)addr >= -0x40000);
+ buf_ptr[0] = (buf_ptr[0] & ~0xffffe0) | ((addr & 0x7ffff) << 5);
+ break;
+ }
+
+ SLJIT_ASSERT((jump->flags & (PATCH_ABS48 | PATCH_ABS64)) || addr <= 0xffffffffl);
+ SLJIT_ASSERT((jump->flags & PATCH_ABS64) || addr <= 0xffffffffffffl);
+
+ dst = buf_ptr[0] & 0x1f;
+ buf_ptr[0] = MOVZ | dst | ((addr & 0xffff) << 5);
+ buf_ptr[1] = MOVK | dst | (((addr >> 16) & 0xffff) << 5) | (1 << 21);
+ if (jump->flags & (PATCH_ABS48 | PATCH_ABS64))
+ buf_ptr[2] = MOVK | dst | (((addr >> 32) & 0xffff) << 5) | (2 << 21);
+ if (jump->flags & PATCH_ABS64)
+ buf_ptr[3] = MOVK | dst | (((addr >> 48) & 0xffff) << 5) | (3 << 21);
+ } while (0);
+ jump = jump->next;
+ }
+
+ compiler->error = SLJIT_ERR_COMPILED;
+ compiler->executable_offset = executable_offset;
+ compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins);
+
+ code = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
+ code_ptr = (sljit_ins *)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;
+ }
+}
+
+/* --------------------------------------------------------------------- */
+/* Core code generator functions. */
+/* --------------------------------------------------------------------- */
+
+#define COUNT_TRAILING_ZERO(value, result) \
+ result = 0; \
+ if (!(value & 0xffffffff)) { \
+ result += 32; \
+ value >>= 32; \
+ } \
+ if (!(value & 0xffff)) { \
+ result += 16; \
+ value >>= 16; \
+ } \
+ if (!(value & 0xff)) { \
+ result += 8; \
+ value >>= 8; \
+ } \
+ if (!(value & 0xf)) { \
+ result += 4; \
+ value >>= 4; \
+ } \
+ if (!(value & 0x3)) { \
+ result += 2; \
+ value >>= 2; \
+ } \
+ if (!(value & 0x1)) { \
+ result += 1; \
+ value >>= 1; \
+ }
+
+#define LOGICAL_IMM_CHECK 0x100
+
+static sljit_ins logical_imm(sljit_sw imm, sljit_s32 len)
+{
+ sljit_s32 negated, ones, right;
+ sljit_uw mask, uimm;
+ sljit_ins ins;
+
+ if (len & LOGICAL_IMM_CHECK) {
+ len &= ~LOGICAL_IMM_CHECK;
+ if (len == 32 && (imm == 0 || imm == -1))
+ return 0;
+ if (len == 16 && ((sljit_s32)imm == 0 || (sljit_s32)imm == -1))
+ return 0;
+ }
+
+ SLJIT_ASSERT((len == 32 && imm != 0 && imm != -1)
+ || (len == 16 && (sljit_s32)imm != 0 && (sljit_s32)imm != -1));
+
+ uimm = (sljit_uw)imm;
+ while (1) {
+ if (len <= 0) {
+ SLJIT_UNREACHABLE();
+ return 0;
+ }
+
+ mask = ((sljit_uw)1 << len) - 1;
+ if ((uimm & mask) != ((uimm >> len) & mask))
+ break;
+ len >>= 1;
+ }
+
+ len <<= 1;
+
+ negated = 0;
+ if (uimm & 0x1) {
+ negated = 1;
+ uimm = ~uimm;
+ }
+
+ if (len < 64)
+ uimm &= ((sljit_uw)1 << len) - 1;
+
+ /* Unsigned right shift. */
+ COUNT_TRAILING_ZERO(uimm, right);
+
+ /* Signed shift. We also know that the highest bit is set. */
+ imm = (sljit_sw)~uimm;
+ SLJIT_ASSERT(imm < 0);
+
+ COUNT_TRAILING_ZERO(imm, ones);
+
+ if (~imm)
+ return 0;
+
+ if (len == 64)
+ ins = 1 << 22;
+ else
+ ins = (0x3f - ((len << 1) - 1)) << 10;
+
+ if (negated)
+ return ins | ((len - ones - 1) << 10) | ((len - ones - right) << 16);
+
+ return ins | ((ones - 1) << 10) | ((len - right) << 16);
+}
+
+#undef COUNT_TRAILING_ZERO
+
+static sljit_s32 load_immediate(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw simm)
+{
+ sljit_uw imm = (sljit_uw)simm;
+ sljit_s32 i, zeros, ones, first;
+ sljit_ins bitmask;
+
+ /* Handling simple immediates first. */
+ if (imm <= 0xffff)
+ return push_inst(compiler, MOVZ | RD(dst) | (imm << 5));
+
+ if (simm < 0 && simm >= -0x10000)
+ return push_inst(compiler, MOVN | RD(dst) | ((~imm & 0xffff) << 5));
+
+ if (imm <= 0xffffffffl) {
+ if ((imm & 0xffff) == 0)
+ return push_inst(compiler, MOVZ | RD(dst) | ((imm >> 16) << 5) | (1 << 21));
+ if ((imm & 0xffff0000l) == 0xffff0000)
+ return push_inst(compiler, (MOVN ^ W_OP) | RD(dst) | ((~imm & 0xffff) << 5));
+ if ((imm & 0xffff) == 0xffff)
+ return push_inst(compiler, (MOVN ^ W_OP) | RD(dst) | ((~imm & 0xffff0000l) >> (16 - 5)) | (1 << 21));
+
+ bitmask = logical_imm(simm, 16);
+ if (bitmask != 0)
+ return push_inst(compiler, (ORRI ^ W_OP) | RD(dst) | RN(TMP_ZERO) | bitmask);
+
+ FAIL_IF(push_inst(compiler, MOVZ | RD(dst) | ((imm & 0xffff) << 5)));
+ return push_inst(compiler, MOVK | RD(dst) | ((imm & 0xffff0000l) >> (16 - 5)) | (1 << 21));
+ }
+
+ bitmask = logical_imm(simm, 32);
+ if (bitmask != 0)
+ return push_inst(compiler, ORRI | RD(dst) | RN(TMP_ZERO) | bitmask);
+
+ if (simm < 0 && simm >= -0x100000000l) {
+ if ((imm & 0xffff) == 0xffff)
+ return push_inst(compiler, MOVN | RD(dst) | ((~imm & 0xffff0000l) >> (16 - 5)) | (1 << 21));
+
+ FAIL_IF(push_inst(compiler, MOVN | RD(dst) | ((~imm & 0xffff) << 5)));
+ return push_inst(compiler, MOVK | RD(dst) | ((imm & 0xffff0000l) >> (16 - 5)) | (1 << 21));
+ }
+
+ /* A large amount of number can be constructed from ORR and MOVx, but computing them is costly. */
+
+ zeros = 0;
+ ones = 0;
+ for (i = 4; i > 0; i--) {
+ if ((simm & 0xffff) == 0)
+ zeros++;
+ if ((simm & 0xffff) == 0xffff)
+ ones++;
+ simm >>= 16;
+ }
+
+ simm = (sljit_sw)imm;
+ first = 1;
+ if (ones > zeros) {
+ simm = ~simm;
+ for (i = 0; i < 4; i++) {
+ if (!(simm & 0xffff)) {
+ simm >>= 16;
+ continue;
+ }
+ if (first) {
+ first = 0;
+ FAIL_IF(push_inst(compiler, MOVN | RD(dst) | ((simm & 0xffff) << 5) | (i << 21)));
+ }
+ else
+ FAIL_IF(push_inst(compiler, MOVK | RD(dst) | ((~simm & 0xffff) << 5) | (i << 21)));
+ simm >>= 16;
+ }
+ return SLJIT_SUCCESS;
+ }
+
+ for (i = 0; i < 4; i++) {
+ if (!(simm & 0xffff)) {
+ simm >>= 16;
+ continue;
+ }
+ if (first) {
+ first = 0;
+ FAIL_IF(push_inst(compiler, MOVZ | RD(dst) | ((simm & 0xffff) << 5) | (i << 21)));
+ }
+ else
+ FAIL_IF(push_inst(compiler, MOVK | RD(dst) | ((simm & 0xffff) << 5) | (i << 21)));
+ simm >>= 16;
+ }
+ return SLJIT_SUCCESS;
+}
+
+#define ARG1_IMM 0x0010000
+#define ARG2_IMM 0x0020000
+#define INT_OP 0x0040000
+#define SET_FLAGS 0x0080000
+#define UNUSED_RETURN 0x0100000
+
+#define CHECK_FLAGS(flag_bits) \
+ if (flags & SET_FLAGS) { \
+ inv_bits |= flag_bits; \
+ if (flags & UNUSED_RETURN) \
+ dst = TMP_ZERO; \
+ }
+
+static sljit_s32 emit_op_imm(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 dst, sljit_sw arg1, sljit_sw arg2)
+{
+ /* dst must be register, TMP_REG1
+ arg1 must be register, TMP_REG1, imm
+ arg2 must be register, TMP_REG2, imm */
+ sljit_ins inv_bits = (flags & INT_OP) ? (1 << 31) : 0;
+ sljit_ins inst_bits;
+ sljit_s32 op = (flags & 0xffff);
+ sljit_s32 reg;
+ sljit_sw imm, nimm;
+
+ if (SLJIT_UNLIKELY((flags & (ARG1_IMM | ARG2_IMM)) == (ARG1_IMM | ARG2_IMM))) {
+ /* Both are immediates. */
+ flags &= ~ARG1_IMM;
+ if (arg1 == 0 && op != SLJIT_ADD && op != SLJIT_SUB)
+ arg1 = TMP_ZERO;
+ else {
+ FAIL_IF(load_immediate(compiler, TMP_REG1, arg1));
+ arg1 = TMP_REG1;
+ }
+ }
+
+ if (flags & (ARG1_IMM | ARG2_IMM)) {
+ reg = (flags & ARG2_IMM) ? arg1 : arg2;
+ imm = (flags & ARG2_IMM) ? arg2 : arg1;
+
+ switch (op) {
+ case SLJIT_MUL:
+ case SLJIT_NEG:
+ case SLJIT_CLZ:
+ case SLJIT_ADDC:
+ case SLJIT_SUBC:
+ /* No form with immediate operand (except imm 0, which
+ is represented by a ZERO register). */
+ break;
+ case SLJIT_MOV:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && (flags & ARG2_IMM) && arg1 == TMP_REG1);
+ return load_immediate(compiler, dst, imm);
+ case SLJIT_NOT:
+ SLJIT_ASSERT(flags & ARG2_IMM);
+ FAIL_IF(load_immediate(compiler, dst, (flags & INT_OP) ? (~imm & 0xffffffff) : ~imm));
+ goto set_flags;
+ case SLJIT_SUB:
+ if (flags & ARG1_IMM)
+ break;
+ imm = -imm;
+ /* Fall through. */
+ case SLJIT_ADD:
+ if (imm == 0) {
+ CHECK_FLAGS(1 << 29);
+ return push_inst(compiler, ((op == SLJIT_ADD ? ADDI : SUBI) ^ inv_bits) | RD(dst) | RN(reg));
+ }
+ if (imm > 0 && imm <= 0xfff) {
+ CHECK_FLAGS(1 << 29);
+ return push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(reg) | (imm << 10));
+ }
+ nimm = -imm;
+ if (nimm > 0 && nimm <= 0xfff) {
+ CHECK_FLAGS(1 << 29);
+ return push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(reg) | (nimm << 10));
+ }
+ if (imm > 0 && imm <= 0xffffff && !(imm & 0xfff)) {
+ CHECK_FLAGS(1 << 29);
+ return push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(reg) | ((imm >> 12) << 10) | (1 << 22));
+ }
+ if (nimm > 0 && nimm <= 0xffffff && !(nimm & 0xfff)) {
+ CHECK_FLAGS(1 << 29);
+ return push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(reg) | ((nimm >> 12) << 10) | (1 << 22));
+ }
+ if (imm > 0 && imm <= 0xffffff && !(flags & SET_FLAGS)) {
+ FAIL_IF(push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(reg) | ((imm >> 12) << 10) | (1 << 22)));
+ return push_inst(compiler, (ADDI ^ inv_bits) | RD(dst) | RN(dst) | ((imm & 0xfff) << 10));
+ }
+ if (nimm > 0 && nimm <= 0xffffff && !(flags & SET_FLAGS)) {
+ FAIL_IF(push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(reg) | ((nimm >> 12) << 10) | (1 << 22)));
+ return push_inst(compiler, (SUBI ^ inv_bits) | RD(dst) | RN(dst) | ((nimm & 0xfff) << 10));
+ }
+ break;
+ case SLJIT_AND:
+ inst_bits = logical_imm(imm, LOGICAL_IMM_CHECK | ((flags & INT_OP) ? 16 : 32));
+ if (!inst_bits)
+ break;
+ CHECK_FLAGS(3 << 29);
+ return push_inst(compiler, (ANDI ^ inv_bits) | RD(dst) | RN(reg) | inst_bits);
+ case SLJIT_OR:
+ case SLJIT_XOR:
+ inst_bits = logical_imm(imm, LOGICAL_IMM_CHECK | ((flags & INT_OP) ? 16 : 32));
+ if (!inst_bits)
+ break;
+ if (op == SLJIT_OR)
+ inst_bits |= ORRI;
+ else
+ inst_bits |= EORI;
+ FAIL_IF(push_inst(compiler, (inst_bits ^ inv_bits) | RD(dst) | RN(reg)));
+ goto set_flags;
+ case SLJIT_SHL:
+ if (flags & ARG1_IMM)
+ break;
+ if (flags & INT_OP) {
+ imm &= 0x1f;
+ FAIL_IF(push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg1) | ((-imm & 0x1f) << 16) | ((31 - imm) << 10)));
+ }
+ else {
+ imm &= 0x3f;
+ FAIL_IF(push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg1) | (1 << 22) | ((-imm & 0x3f) << 16) | ((63 - imm) << 10)));
+ }
+ goto set_flags;
+ case SLJIT_LSHR:
+ case SLJIT_ASHR:
+ if (flags & ARG1_IMM)
+ break;
+ if (op == SLJIT_ASHR)
+ inv_bits |= 1 << 30;
+ if (flags & INT_OP) {
+ imm &= 0x1f;
+ FAIL_IF(push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg1) | (imm << 16) | (31 << 10)));
+ }
+ else {
+ imm &= 0x3f;
+ FAIL_IF(push_inst(compiler, (UBFM ^ inv_bits) | RD(dst) | RN(arg1) | (1 << 22) | (imm << 16) | (63 << 10)));
+ }
+ goto set_flags;
+ default:
+ SLJIT_UNREACHABLE();
+ break;
+ }
+
+ if (flags & ARG2_IMM) {
+ if (arg2 == 0)
+ arg2 = TMP_ZERO;
+ else {
+ FAIL_IF(load_immediate(compiler, TMP_REG2, arg2));
+ arg2 = TMP_REG2;
+ }
+ }
+ else {
+ if (arg1 == 0)
+ arg1 = TMP_ZERO;
+ else {
+ FAIL_IF(load_immediate(compiler, TMP_REG1, arg1));
+ arg1 = TMP_REG1;
+ }
+ }
+ }
+
+ /* Both arguments are registers. */
+ switch (op) {
+ case SLJIT_MOV:
+ case SLJIT_MOV_P:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+ if (dst == arg2)
+ return SLJIT_SUCCESS;
+ return push_inst(compiler, ORR | RD(dst) | RN(TMP_ZERO) | RM(arg2));
+ case SLJIT_MOV_U8:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+ return push_inst(compiler, (UBFM ^ (1 << 31)) | RD(dst) | RN(arg2) | (7 << 10));
+ case SLJIT_MOV_S8:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+ if (!(flags & INT_OP))
+ inv_bits |= 1 << 22;
+ return push_inst(compiler, (SBFM ^ inv_bits) | RD(dst) | RN(arg2) | (7 << 10));
+ case SLJIT_MOV_U16:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+ return push_inst(compiler, (UBFM ^ (1 << 31)) | RD(dst) | RN(arg2) | (15 << 10));
+ case SLJIT_MOV_S16:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+ if (!(flags & INT_OP))
+ inv_bits |= 1 << 22;
+ return push_inst(compiler, (SBFM ^ inv_bits) | RD(dst) | RN(arg2) | (15 << 10));
+ case SLJIT_MOV_U32:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+ if ((flags & INT_OP) && dst == arg2)
+ return SLJIT_SUCCESS;
+ return push_inst(compiler, (ORR ^ (1 << 31)) | RD(dst) | RN(TMP_ZERO) | RM(arg2));
+ case SLJIT_MOV_S32:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+ if ((flags & INT_OP) && dst == arg2)
+ return SLJIT_SUCCESS;
+ return push_inst(compiler, SBFM | (1 << 22) | RD(dst) | RN(arg2) | (31 << 10));
+ case SLJIT_NOT:
+ SLJIT_ASSERT(arg1 == TMP_REG1);
+ FAIL_IF(push_inst(compiler, (ORN ^ inv_bits) | RD(dst) | RN(TMP_ZERO) | RM(arg2)));
+ break; /* Set flags. */
+ case SLJIT_NEG:
+ SLJIT_ASSERT(arg1 == TMP_REG1);
+ if (flags & SET_FLAGS)
+ inv_bits |= 1 << 29;
+ return push_inst(compiler, (SUB ^ inv_bits) | RD(dst) | RN(TMP_ZERO) | RM(arg2));
+ case SLJIT_CLZ:
+ SLJIT_ASSERT(arg1 == TMP_REG1);
+ return push_inst(compiler, (CLZ ^ inv_bits) | RD(dst) | RN(arg2));
+ case SLJIT_ADD:
+ CHECK_FLAGS(1 << 29);
+ return push_inst(compiler, (ADD ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2));
+ case SLJIT_ADDC:
+ CHECK_FLAGS(1 << 29);
+ return push_inst(compiler, (ADC ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2));
+ case SLJIT_SUB:
+ CHECK_FLAGS(1 << 29);
+ return push_inst(compiler, (SUB ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2));
+ case SLJIT_SUBC:
+ CHECK_FLAGS(1 << 29);
+ return push_inst(compiler, (SBC ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2));
+ case SLJIT_MUL:
+ if (!(flags & SET_FLAGS))
+ return push_inst(compiler, (MADD ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2) | RT2(TMP_ZERO));
+ if (flags & INT_OP) {
+ FAIL_IF(push_inst(compiler, SMADDL | RD(dst) | RN(arg1) | RM(arg2) | (31 << 10)));
+ FAIL_IF(push_inst(compiler, ADD | RD(TMP_LR) | RN(TMP_ZERO) | RM(dst) | (2 << 22) | (31 << 10)));
+ return push_inst(compiler, SUBS | RD(TMP_ZERO) | RN(TMP_LR) | RM(dst) | (2 << 22) | (63 << 10));
+ }
+ FAIL_IF(push_inst(compiler, SMULH | RD(TMP_LR) | RN(arg1) | RM(arg2)));
+ FAIL_IF(push_inst(compiler, MADD | RD(dst) | RN(arg1) | RM(arg2) | RT2(TMP_ZERO)));
+ return push_inst(compiler, SUBS | RD(TMP_ZERO) | RN(TMP_LR) | RM(dst) | (2 << 22) | (63 << 10));
+ case SLJIT_AND:
+ CHECK_FLAGS(3 << 29);
+ return push_inst(compiler, (AND ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2));
+ case SLJIT_OR:
+ FAIL_IF(push_inst(compiler, (ORR ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)));
+ break; /* Set flags. */
+ case SLJIT_XOR:
+ FAIL_IF(push_inst(compiler, (EOR ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)));
+ break; /* Set flags. */
+ case SLJIT_SHL:
+ FAIL_IF(push_inst(compiler, (LSLV ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)));
+ break; /* Set flags. */
+ case SLJIT_LSHR:
+ FAIL_IF(push_inst(compiler, (LSRV ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)));
+ break; /* Set flags. */
+ case SLJIT_ASHR:
+ FAIL_IF(push_inst(compiler, (ASRV ^ inv_bits) | RD(dst) | RN(arg1) | RM(arg2)));
+ break; /* Set flags. */
+ default:
+ SLJIT_UNREACHABLE();
+ return SLJIT_SUCCESS;
+ }
+
+set_flags:
+ if (flags & SET_FLAGS)
+ return push_inst(compiler, (SUBS ^ inv_bits) | RD(TMP_ZERO) | RN(dst) | RM(TMP_ZERO));
+ return SLJIT_SUCCESS;
+}
+
+#define STORE 0x10
+#define SIGNED 0x20
+
+#define BYTE_SIZE 0x0
+#define HALF_SIZE 0x1
+#define INT_SIZE 0x2
+#define WORD_SIZE 0x3
+
+#define MEM_SIZE_SHIFT(flags) ((flags) & 0x3)
+
+static 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_u32 shift = MEM_SIZE_SHIFT(flags);
+ sljit_u32 type = (shift << 30);
+
+ if (!(flags & STORE))
+ type |= (flags & SIGNED) ? 0x00800000 : 0x00400000;
+
+ SLJIT_ASSERT(arg & SLJIT_MEM);
+
+ if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
+ argw &= 0x3;
+
+ if (argw == 0 || argw == shift)
+ return push_inst(compiler, STRB | type | RT(reg)
+ | RN(arg & REG_MASK) | RM(OFFS_REG(arg)) | (argw ? (1 << 12) : 0));
+
+ FAIL_IF(push_inst(compiler, ADD | RD(tmp_reg) | RN(arg & REG_MASK) | RM(OFFS_REG(arg)) | (argw << 10)));
+ return push_inst(compiler, STRBI | type | RT(reg) | RN(tmp_reg));
+ }
+
+ arg &= REG_MASK;
+
+ if (arg == SLJIT_UNUSED) {
+ FAIL_IF(load_immediate(compiler, tmp_reg, argw & ~(0xfff << shift)));
+
+ argw = (argw >> shift) & 0xfff;
+
+ return push_inst(compiler, STRBI | type | RT(reg) | RN(tmp_reg) | (argw << 10));
+ }
+
+ if (argw >= 0 && (argw & ((1 << shift) - 1)) == 0) {
+ if ((argw >> shift) <= 0xfff) {
+ return push_inst(compiler, STRBI | type | RT(reg) | RN(arg) | (argw << (10 - shift)));
+ }
+
+ if (argw <= 0xffffff) {
+ FAIL_IF(push_inst(compiler, ADDI | (1 << 22) | RD(tmp_reg) | RN(arg) | ((argw >> 12) << 10)));
+
+ argw = ((argw & 0xfff) >> shift);
+ return push_inst(compiler, STRBI | type | RT(reg) | RN(tmp_reg) | (argw << 10));
+ }
+ }
+
+ if (argw <= 255 && argw >= -256)
+ return push_inst(compiler, STURBI | type | RT(reg) | RN(arg) | ((argw & 0x1ff) << 12));
+
+ FAIL_IF(load_immediate(compiler, tmp_reg, argw));
+
+ return push_inst(compiler, STRB | type | RT(reg) | RN(arg) | RM(tmp_reg));
+}
+
+/* --------------------------------------------------------------------- */
+/* Entry, exit */
+/* --------------------------------------------------------------------- */
+
+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, i, tmp, offs, prev, saved_regs_size;
+
+ 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);
+
+ saved_regs_size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 2);
+ if (saved_regs_size & 0x8)
+ saved_regs_size += sizeof(sljit_sw);
+
+ local_size = (local_size + 15) & ~0xf;
+ compiler->local_size = local_size + saved_regs_size;
+
+ FAIL_IF(push_inst(compiler, STP_PRE | RT(TMP_FP) | RT2(TMP_LR)
+ | RN(SLJIT_SP) | ((-(saved_regs_size >> 3) & 0x7f) << 15)));
+
+#ifdef _WIN32
+ if (local_size >= 4096)
+ FAIL_IF(push_inst(compiler, SUBI | RD(TMP_REG1) | RN(SLJIT_SP) | (1 << 10) | (1 << 22)));
+ else if (local_size > 256)
+ FAIL_IF(push_inst(compiler, SUBI | RD(TMP_REG1) | RN(SLJIT_SP) | (local_size << 10)));
+#endif
+
+ tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG;
+ prev = -1;
+ offs = 2 << 15;
+ for (i = SLJIT_S0; i >= tmp; i--) {
+ if (prev == -1) {
+ prev = i;
+ continue;
+ }
+ FAIL_IF(push_inst(compiler, STP | RT(prev) | RT2(i) | RN(SLJIT_SP) | offs));
+ offs += 2 << 15;
+ prev = -1;
+ }
+
+ for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
+ if (prev == -1) {
+ prev = i;
+ continue;
+ }
+ FAIL_IF(push_inst(compiler, STP | RT(prev) | RT2(i) | RN(SLJIT_SP) | offs));
+ offs += 2 << 15;
+ prev = -1;
+ }
+
+ if (prev != -1)
+ FAIL_IF(push_inst(compiler, STRI | RT(prev) | RN(SLJIT_SP) | (offs >> 5)));
+
+
+ FAIL_IF(push_inst(compiler, ADDI | RD(TMP_FP) | RN(SLJIT_SP) | (0 << 10)));
+
+ args = get_arg_count(arg_types);
+
+ if (args >= 1)
+ FAIL_IF(push_inst(compiler, ORR | RD(SLJIT_S0) | RN(TMP_ZERO) | RM(SLJIT_R0)));
+ if (args >= 2)
+ FAIL_IF(push_inst(compiler, ORR | RD(SLJIT_S1) | RN(TMP_ZERO) | RM(SLJIT_R1)));
+ if (args >= 3)
+ FAIL_IF(push_inst(compiler, ORR | RD(SLJIT_S2) | RN(TMP_ZERO) | RM(SLJIT_R2)));
+
+#ifdef _WIN32
+ if (local_size >= 4096) {
+ if (local_size < 4 * 4096) {
+ /* No need for a loop. */
+ if (local_size >= 2 * 4096) {
+ FAIL_IF(push_inst(compiler, LDRI | RT(TMP_ZERO) | RN(TMP_REG1)));
+ FAIL_IF(push_inst(compiler, SUBI | RD(TMP_REG1) | RN(TMP_REG1) | (1 << 10) | (1 << 22)));
+ local_size -= 4096;
+ }
+
+ if (local_size >= 2 * 4096) {
+ FAIL_IF(push_inst(compiler, LDRI | RT(TMP_ZERO) | RN(TMP_REG1)));
+ FAIL_IF(push_inst(compiler, SUBI | RD(TMP_REG1) | RN(TMP_REG1) | (1 << 10) | (1 << 22)));
+ local_size -= 4096;
+ }
+
+ FAIL_IF(push_inst(compiler, LDRI | RT(TMP_ZERO) | RN(TMP_REG1)));
+ local_size -= 4096;
+ }
+ else {
+ FAIL_IF(push_inst(compiler, MOVZ | RD(TMP_REG2) | (((local_size >> 12) - 1) << 5)));
+ FAIL_IF(push_inst(compiler, LDRI | RT(TMP_ZERO) | RN(TMP_REG1)));
+ FAIL_IF(push_inst(compiler, SUBI | RD(TMP_REG1) | RN(TMP_REG1) | (1 << 10) | (1 << 22)));
+ FAIL_IF(push_inst(compiler, SUBI | (1 << 29) | RD(TMP_REG2) | RN(TMP_REG2) | (1 << 10)));
+ FAIL_IF(push_inst(compiler, B_CC | ((((sljit_ins) -3) & 0x7ffff) << 5) | 0x1 /* not-equal */));
+ FAIL_IF(push_inst(compiler, LDRI | RT(TMP_ZERO) | RN(TMP_REG1)));
+
+ local_size &= 0xfff;
+ }
+
+ if (local_size > 256) {
+ FAIL_IF(push_inst(compiler, SUBI | RD(TMP_REG1) | RN(TMP_REG1) | (local_size << 10)));
+ FAIL_IF(push_inst(compiler, LDRI | RT(TMP_ZERO) | RN(TMP_REG1)));
+ }
+ else if (local_size > 0)
+ FAIL_IF(push_inst(compiler, LDR_PRE | RT(TMP_ZERO) | RN(TMP_REG1) | ((-local_size & 0x1ff) << 12)));
+
+ FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RN(TMP_REG1) | (0 << 10)));
+ }
+ else if (local_size > 256) {
+ FAIL_IF(push_inst(compiler, LDRI | RT(TMP_ZERO) | RN(TMP_REG1)));
+ FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RN(TMP_REG1) | (0 << 10)));
+ }
+ else if (local_size > 0)
+ FAIL_IF(push_inst(compiler, LDR_PRE | RT(TMP_ZERO) | RN(SLJIT_SP) | ((-local_size & 0x1ff) << 12)));
+
+#else /* !_WIN32 */
+
+ /* The local_size does not include saved registers size. */
+ if (local_size > 0xfff) {
+ FAIL_IF(push_inst(compiler, SUBI | RD(SLJIT_SP) | RN(SLJIT_SP) | ((local_size >> 12) << 10) | (1 << 22)));
+ local_size &= 0xfff;
+ }
+ if (local_size != 0)
+ FAIL_IF(push_inst(compiler, SUBI | RD(SLJIT_SP) | RN(SLJIT_SP) | (local_size << 10)));
+
+#endif /* _WIN32 */
+
+ 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 saved_regs_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);
+
+ saved_regs_size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 2);
+ if (saved_regs_size & 0x8)
+ saved_regs_size += sizeof(sljit_sw);
+
+ compiler->local_size = saved_regs_size + ((local_size + 15) & ~0xf);
+ 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 local_size;
+ sljit_s32 i, tmp, offs, prev, saved_regs_size;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_return(compiler, op, src, srcw));
+
+ FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
+
+ saved_regs_size = GET_SAVED_REGISTERS_SIZE(compiler->scratches, compiler->saveds, 2);
+ if (saved_regs_size & 0x8)
+ saved_regs_size += sizeof(sljit_sw);
+
+ local_size = compiler->local_size - saved_regs_size;
+
+ /* Load LR as early as possible. */
+ if (local_size == 0)
+ FAIL_IF(push_inst(compiler, LDP | RT(TMP_FP) | RT2(TMP_LR) | RN(SLJIT_SP)));
+ else if (local_size < 63 * sizeof(sljit_sw)) {
+ FAIL_IF(push_inst(compiler, LDP_PRE | RT(TMP_FP) | RT2(TMP_LR)
+ | RN(SLJIT_SP) | (local_size << (15 - 3))));
+ }
+ else {
+ if (local_size > 0xfff) {
+ FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RN(SLJIT_SP) | ((local_size >> 12) << 10) | (1 << 22)));
+ local_size &= 0xfff;
+ }
+ if (local_size)
+ FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RN(SLJIT_SP) | (local_size << 10)));
+
+ FAIL_IF(push_inst(compiler, LDP | RT(TMP_FP) | RT2(TMP_LR) | RN(SLJIT_SP)));
+ }
+
+ tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG;
+ prev = -1;
+ offs = 2 << 15;
+ for (i = SLJIT_S0; i >= tmp; i--) {
+ if (prev == -1) {
+ prev = i;
+ continue;
+ }
+ FAIL_IF(push_inst(compiler, LDP | RT(prev) | RT2(i) | RN(SLJIT_SP) | offs));
+ offs += 2 << 15;
+ prev = -1;
+ }
+
+ for (i = compiler->scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
+ if (prev == -1) {
+ prev = i;
+ continue;
+ }
+ FAIL_IF(push_inst(compiler, LDP | RT(prev) | RT2(i) | RN(SLJIT_SP) | offs));
+ offs += 2 << 15;
+ prev = -1;
+ }
+
+ if (prev != -1)
+ FAIL_IF(push_inst(compiler, LDRI | RT(prev) | RN(SLJIT_SP) | (offs >> 5)));
+
+ /* These two can be executed in parallel. */
+ FAIL_IF(push_inst(compiler, ADDI | RD(SLJIT_SP) | RN(SLJIT_SP) | (saved_regs_size << 10)));
+ return push_inst(compiler, RET | RN(TMP_LR));
+}
+
+/* --------------------------------------------------------------------- */
+/* Operators */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
+{
+ sljit_ins inv_bits = (op & SLJIT_I32_OP) ? (1 << 31) : 0;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_op0(compiler, op));
+
+ op = GET_OPCODE(op);
+ switch (op) {
+ case SLJIT_BREAKPOINT:
+ return push_inst(compiler, BRK);
+ case SLJIT_NOP:
+ return push_inst(compiler, NOP);
+ case SLJIT_LMUL_UW:
+ case SLJIT_LMUL_SW:
+ FAIL_IF(push_inst(compiler, ORR | RD(TMP_REG1) | RN(TMP_ZERO) | RM(SLJIT_R0)));
+ FAIL_IF(push_inst(compiler, MADD | RD(SLJIT_R0) | RN(SLJIT_R0) | RM(SLJIT_R1) | RT2(TMP_ZERO)));
+ return push_inst(compiler, (op == SLJIT_LMUL_UW ? UMULH : SMULH) | RD(SLJIT_R1) | RN(TMP_REG1) | RM(SLJIT_R1));
+ case SLJIT_DIVMOD_UW:
+ case SLJIT_DIVMOD_SW:
+ FAIL_IF(push_inst(compiler, (ORR ^ inv_bits) | RD(TMP_REG1) | RN(TMP_ZERO) | RM(SLJIT_R0)));
+ FAIL_IF(push_inst(compiler, ((op == SLJIT_DIVMOD_UW ? UDIV : SDIV) ^ inv_bits) | RD(SLJIT_R0) | RN(SLJIT_R0) | RM(SLJIT_R1)));
+ FAIL_IF(push_inst(compiler, (MADD ^ inv_bits) | RD(SLJIT_R1) | RN(SLJIT_R0) | RM(SLJIT_R1) | RT2(TMP_ZERO)));
+ return push_inst(compiler, (SUB ^ inv_bits) | RD(SLJIT_R1) | RN(TMP_REG1) | RM(SLJIT_R1));
+ case SLJIT_DIV_UW:
+ case SLJIT_DIV_SW:
+ return push_inst(compiler, ((op == SLJIT_DIV_UW ? UDIV : SDIV) ^ inv_bits) | RD(SLJIT_R0) | RN(SLJIT_R0) | RM(SLJIT_R1));
+ }
+
+ 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)
+{
+ sljit_s32 dst_r, flags, mem_flags;
+ sljit_s32 op_flags = GET_ALL_FLAGS(op);
+
+ 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 (op <= SLJIT_MOV_P && (src & SLJIT_MEM)) {
+ SLJIT_ASSERT(reg_map[1] == 0 && reg_map[3] == 2 && reg_map[5] == 4);
+
+ if (op >= SLJIT_MOV_U8 && op <= SLJIT_MOV_S8)
+ dst = 5;
+ else if (op >= SLJIT_MOV_U16 && op <= SLJIT_MOV_S16)
+ dst = 3;
+ else
+ dst = 1;
+
+ /* Signed word sized load is the prefetch instruction. */
+ return emit_op_mem(compiler, WORD_SIZE | SIGNED, dst, src, srcw, TMP_REG1);
+ }
+ return SLJIT_SUCCESS;
+ }
+
+ dst_r = SLOW_IS_REG(dst) ? dst : TMP_REG1;
+
+ op = GET_OPCODE(op);
+ if (op >= SLJIT_MOV && op <= SLJIT_MOV_P) {
+ /* Both operands are registers. */
+ if (dst_r != TMP_REG1 && FAST_IS_REG(src))
+ return emit_op_imm(compiler, op | ((op_flags & SLJIT_I32_OP) ? INT_OP : 0), dst_r, TMP_REG1, src);
+
+ switch (op) {
+ case SLJIT_MOV:
+ case SLJIT_MOV_P:
+ mem_flags = WORD_SIZE;
+ break;
+ case SLJIT_MOV_U8:
+ mem_flags = BYTE_SIZE;
+ if (src & SLJIT_IMM)
+ srcw = (sljit_u8)srcw;
+ break;
+ case SLJIT_MOV_S8:
+ mem_flags = BYTE_SIZE | SIGNED;
+ if (src & SLJIT_IMM)
+ srcw = (sljit_s8)srcw;
+ break;
+ case SLJIT_MOV_U16:
+ mem_flags = HALF_SIZE;
+ if (src & SLJIT_IMM)
+ srcw = (sljit_u16)srcw;
+ break;
+ case SLJIT_MOV_S16:
+ mem_flags = HALF_SIZE | SIGNED;
+ if (src & SLJIT_IMM)
+ srcw = (sljit_s16)srcw;
+ break;
+ case SLJIT_MOV_U32:
+ mem_flags = INT_SIZE;
+ if (src & SLJIT_IMM)
+ srcw = (sljit_u32)srcw;
+ break;
+ case SLJIT_MOV_S32:
+ mem_flags = INT_SIZE | SIGNED;
+ if (src & SLJIT_IMM)
+ srcw = (sljit_s32)srcw;
+ break;
+ default:
+ SLJIT_UNREACHABLE();
+ mem_flags = 0;
+ break;
+ }
+
+ if (src & SLJIT_IMM)
+ FAIL_IF(emit_op_imm(compiler, SLJIT_MOV | ARG2_IMM, dst_r, TMP_REG1, srcw));
+ else if (!(src & SLJIT_MEM))
+ dst_r = src;
+ else
+ FAIL_IF(emit_op_mem(compiler, mem_flags, dst_r, src, srcw, TMP_REG1));
+
+ if (dst & SLJIT_MEM)
+ return emit_op_mem(compiler, mem_flags | STORE, dst_r, dst, dstw, TMP_REG2);
+ return SLJIT_SUCCESS;
+ }
+
+ flags = HAS_FLAGS(op_flags) ? SET_FLAGS : 0;
+ mem_flags = WORD_SIZE;
+
+ if (op_flags & SLJIT_I32_OP) {
+ flags |= INT_OP;
+ mem_flags = INT_SIZE;
+ }
+
+ if (dst == SLJIT_UNUSED)
+ flags |= UNUSED_RETURN;
+
+ if (src & SLJIT_MEM) {
+ FAIL_IF(emit_op_mem(compiler, mem_flags, TMP_REG2, src, srcw, TMP_REG2));
+ src = TMP_REG2;
+ }
+
+ emit_op_imm(compiler, flags | op, dst_r, TMP_REG1, src);
+
+ if (SLJIT_UNLIKELY(dst & SLJIT_MEM))
+ return emit_op_mem(compiler, mem_flags | STORE, dst_r, dst, dstw, TMP_REG2);
+ 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)
+{
+ sljit_s32 dst_r, flags, mem_flags;
+
+ 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;
+
+ dst_r = SLOW_IS_REG(dst) ? dst : TMP_REG1;
+ flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
+ mem_flags = WORD_SIZE;
+
+ if (op & SLJIT_I32_OP) {
+ flags |= INT_OP;
+ mem_flags = INT_SIZE;
+ }
+
+ if (dst == SLJIT_UNUSED)
+ flags |= UNUSED_RETURN;
+
+ if (src1 & SLJIT_MEM) {
+ FAIL_IF(emit_op_mem(compiler, mem_flags, TMP_REG1, src1, src1w, TMP_REG1));
+ src1 = TMP_REG1;
+ }
+
+ if (src2 & SLJIT_MEM) {
+ FAIL_IF(emit_op_mem(compiler, mem_flags, TMP_REG2, src2, src2w, TMP_REG2));
+ src2 = TMP_REG2;
+ }
+
+ if (src1 & SLJIT_IMM)
+ flags |= ARG1_IMM;
+ else
+ src1w = src1;
+
+ if (src2 & SLJIT_IMM)
+ flags |= ARG2_IMM;
+ else
+ src2w = src2;
+
+ emit_op_imm(compiler, flags | GET_OPCODE(op), dst_r, src1w, src2w);
+
+ if (dst & SLJIT_MEM)
+ return emit_op_mem(compiler, mem_flags | STORE, dst_r, dst, dstw, TMP_REG2);
+ 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];
+}
+
+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_ins*)instruction);
+}
+
+/* --------------------------------------------------------------------- */
+/* Floating point operators */
+/* --------------------------------------------------------------------- */
+
+static sljit_s32 emit_fop_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
+{
+ sljit_u32 shift = MEM_SIZE_SHIFT(flags);
+ sljit_ins type = (shift << 30);
+
+ SLJIT_ASSERT(arg & SLJIT_MEM);
+
+ if (!(flags & STORE))
+ type |= 0x00400000;
+
+ if (arg & OFFS_REG_MASK) {
+ argw &= 3;
+ if (argw == 0 || argw == shift)
+ return push_inst(compiler, STR_FR | type | VT(reg)
+ | RN(arg & REG_MASK) | RM(OFFS_REG(arg)) | (argw ? (1 << 12) : 0));
+
+ FAIL_IF(push_inst(compiler, ADD | RD(TMP_REG1) | RN(arg & REG_MASK) | RM(OFFS_REG(arg)) | (argw << 10)));
+ return push_inst(compiler, STR_FI | type | VT(reg) | RN(TMP_REG1));
+ }
+
+ arg &= REG_MASK;
+
+ if (arg == SLJIT_UNUSED) {
+ FAIL_IF(load_immediate(compiler, TMP_REG1, argw & ~(0xfff << shift)));
+
+ argw = (argw >> shift) & 0xfff;
+
+ return push_inst(compiler, STR_FI | type | VT(reg) | RN(TMP_REG1) | (argw << 10));
+ }
+
+ if (argw >= 0 && (argw & ((1 << shift) - 1)) == 0) {
+ if ((argw >> shift) <= 0xfff)
+ return push_inst(compiler, STR_FI | type | VT(reg) | RN(arg) | (argw << (10 - shift)));
+
+ if (argw <= 0xffffff) {
+ FAIL_IF(push_inst(compiler, ADDI | (1 << 22) | RD(TMP_REG1) | RN(arg) | ((argw >> 12) << 10)));
+
+ argw = ((argw & 0xfff) >> shift);
+ return push_inst(compiler, STR_FI | type | VT(reg) | RN(TMP_REG1) | (argw << 10));
+ }
+ }
+
+ if (argw <= 255 && argw >= -256)
+ return push_inst(compiler, STUR_FI | type | VT(reg) | RN(arg) | ((argw & 0x1ff) << 12));
+
+ FAIL_IF(load_immediate(compiler, TMP_REG1, argw));
+ return push_inst(compiler, STR_FR | type | VT(reg) | RN(arg) | RM(TMP_REG1));
+}
+
+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)
+{
+ sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
+ sljit_ins inv_bits = (op & SLJIT_F32_OP) ? (1 << 22) : 0;
+
+ if (GET_OPCODE(op) == SLJIT_CONV_S32_FROM_F64)
+ inv_bits |= (1 << 31);
+
+ if (src & SLJIT_MEM) {
+ emit_fop_mem(compiler, (op & SLJIT_F32_OP) ? INT_SIZE : WORD_SIZE, TMP_FREG1, src, srcw);
+ src = TMP_FREG1;
+ }
+
+ FAIL_IF(push_inst(compiler, (FCVTZS ^ inv_bits) | RD(dst_r) | VN(src)));
+
+ if (dst & SLJIT_MEM)
+ return emit_op_mem(compiler, ((GET_OPCODE(op) == SLJIT_CONV_S32_FROM_F64) ? INT_SIZE : WORD_SIZE) | STORE, TMP_REG1, dst, dstw, TMP_REG2);
+ return SLJIT_SUCCESS;
+}
+
+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;
+ sljit_ins inv_bits = (op & SLJIT_F32_OP) ? (1 << 22) : 0;
+
+ if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32)
+ inv_bits |= (1 << 31);
+
+ if (src & SLJIT_MEM) {
+ emit_op_mem(compiler, ((GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32) ? INT_SIZE : WORD_SIZE), TMP_REG1, src, srcw, TMP_REG1);
+ src = TMP_REG1;
+ } else if (src & SLJIT_IMM) {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+ if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32)
+ srcw = (sljit_s32)srcw;
+#endif
+ FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
+ src = TMP_REG1;
+ }
+
+ FAIL_IF(push_inst(compiler, (SCVTF ^ inv_bits) | VD(dst_r) | RN(src)));
+
+ if (dst & SLJIT_MEM)
+ return emit_fop_mem(compiler, ((op & SLJIT_F32_OP) ? INT_SIZE : WORD_SIZE) | STORE, 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)
+{
+ sljit_s32 mem_flags = (op & SLJIT_F32_OP) ? INT_SIZE : WORD_SIZE;
+ sljit_ins inv_bits = (op & SLJIT_F32_OP) ? (1 << 22) : 0;
+
+ if (src1 & SLJIT_MEM) {
+ emit_fop_mem(compiler, mem_flags, TMP_FREG1, src1, src1w);
+ src1 = TMP_FREG1;
+ }
+
+ if (src2 & SLJIT_MEM) {
+ emit_fop_mem(compiler, mem_flags, TMP_FREG2, src2, src2w);
+ src2 = TMP_FREG2;
+ }
+
+ return push_inst(compiler, (FCMP ^ inv_bits) | VN(src1) | VM(src2));
+}
+
+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, mem_flags = (op & SLJIT_F32_OP) ? INT_SIZE : WORD_SIZE;
+ sljit_ins inv_bits;
+
+ CHECK_ERROR();
+
+ SLJIT_COMPILE_ASSERT((INT_SIZE ^ 0x1) == WORD_SIZE, must_be_one_bit_difference);
+ SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
+
+ inv_bits = (op & SLJIT_F32_OP) ? (1 << 22) : 0;
+ dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
+
+ if (src & SLJIT_MEM) {
+ emit_fop_mem(compiler, (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32) ? (mem_flags ^ 0x1) : mem_flags, 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, (FMOV ^ inv_bits) | VD(dst_r) | VN(src)));
+ else
+ dst_r = src;
+ }
+ break;
+ case SLJIT_NEG_F64:
+ FAIL_IF(push_inst(compiler, (FNEG ^ inv_bits) | VD(dst_r) | VN(src)));
+ break;
+ case SLJIT_ABS_F64:
+ FAIL_IF(push_inst(compiler, (FABS ^ inv_bits) | VD(dst_r) | VN(src)));
+ break;
+ case SLJIT_CONV_F64_FROM_F32:
+ FAIL_IF(push_inst(compiler, FCVT | ((op & SLJIT_F32_OP) ? (1 << 22) : (1 << 15)) | VD(dst_r) | VN(src)));
+ break;
+ }
+
+ if (dst & SLJIT_MEM)
+ return emit_fop_mem(compiler, mem_flags | STORE, 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, mem_flags = (op & SLJIT_F32_OP) ? INT_SIZE : WORD_SIZE;
+ sljit_ins inv_bits = (op & SLJIT_F32_OP) ? (1 << 22) : 0;
+
+ 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);
+
+ dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
+ if (src1 & SLJIT_MEM) {
+ emit_fop_mem(compiler, mem_flags, TMP_FREG1, src1, src1w);
+ src1 = TMP_FREG1;
+ }
+ if (src2 & SLJIT_MEM) {
+ emit_fop_mem(compiler, mem_flags, TMP_FREG2, src2, src2w);
+ src2 = TMP_FREG2;
+ }
+
+ switch (GET_OPCODE(op)) {
+ case SLJIT_ADD_F64:
+ FAIL_IF(push_inst(compiler, (FADD ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2)));
+ break;
+ case SLJIT_SUB_F64:
+ FAIL_IF(push_inst(compiler, (FSUB ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2)));
+ break;
+ case SLJIT_MUL_F64:
+ FAIL_IF(push_inst(compiler, (FMUL ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2)));
+ break;
+ case SLJIT_DIV_F64:
+ FAIL_IF(push_inst(compiler, (FDIV ^ inv_bits) | VD(dst_r) | VN(src1) | VM(src2)));
+ break;
+ }
+
+ if (!(dst & SLJIT_MEM))
+ return SLJIT_SUCCESS;
+ return emit_fop_mem(compiler, mem_flags | STORE, TMP_FREG1, dst, dstw);
+}
+
+/* --------------------------------------------------------------------- */
+/* 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);
+
+ if (FAST_IS_REG(dst))
+ return push_inst(compiler, ORR | RD(dst) | RN(TMP_ZERO) | RM(TMP_LR));
+
+ /* Memory. */
+ return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_LR, 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);
+
+ if (FAST_IS_REG(src))
+ FAIL_IF(push_inst(compiler, ORR | RD(TMP_LR) | RN(TMP_ZERO) | RM(src)));
+ else
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_LR, src, srcw, TMP_REG1));
+
+ return push_inst(compiler, RET | RN(TMP_LR));
+}
+
+/* --------------------------------------------------------------------- */
+/* 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 0x1;
+
+ case SLJIT_NOT_EQUAL:
+ case SLJIT_MUL_OVERFLOW:
+ case SLJIT_NOT_EQUAL_F64:
+ return 0x0;
+
+ case SLJIT_LESS:
+ case SLJIT_LESS_F64:
+ return 0x2;
+
+ case SLJIT_GREATER_EQUAL:
+ case SLJIT_GREATER_EQUAL_F64:
+ return 0x3;
+
+ case SLJIT_GREATER:
+ case SLJIT_GREATER_F64:
+ return 0x9;
+
+ case SLJIT_LESS_EQUAL:
+ case SLJIT_LESS_EQUAL_F64:
+ return 0x8;
+
+ case SLJIT_SIG_LESS:
+ return 0xa;
+
+ case SLJIT_SIG_GREATER_EQUAL:
+ return 0xb;
+
+ case SLJIT_SIG_GREATER:
+ return 0xd;
+
+ case SLJIT_SIG_LESS_EQUAL:
+ return 0xc;
+
+ case SLJIT_OVERFLOW:
+ case SLJIT_UNORDERED_F64:
+ return 0x7;
+
+ case SLJIT_NOT_OVERFLOW:
+ case SLJIT_ORDERED_F64:
+ return 0x6;
+
+ default:
+ SLJIT_UNREACHABLE();
+ return 0xe;
+ }
+}
+
+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;
+
+ if (type < SLJIT_JUMP) {
+ jump->flags |= IS_COND;
+ PTR_FAIL_IF(push_inst(compiler, B_CC | (6 << 5) | get_cc(type)));
+ }
+ else if (type >= SLJIT_FAST_CALL)
+ jump->flags |= IS_BL;
+
+ PTR_FAIL_IF(emit_imm64_const(compiler, TMP_REG1, 0));
+ jump->addr = compiler->size;
+ PTR_FAIL_IF(push_inst(compiler, ((type >= SLJIT_FAST_CALL) ? BLR : BR) | RN(TMP_REG1)));
+
+ return jump;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compiler *compiler, sljit_s32 type,
+ sljit_s32 arg_types)
+{
+ CHECK_ERROR_PTR();
+ CHECK_PTR(check_sljit_emit_call(compiler, type, 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);
+}
+
+static SLJIT_INLINE struct sljit_jump* emit_cmp_to0(struct sljit_compiler *compiler, sljit_s32 type,
+ sljit_s32 src, sljit_sw srcw)
+{
+ struct sljit_jump *jump;
+ sljit_ins inv_bits = (type & SLJIT_I32_OP) ? (1 << 31) : 0;
+
+ SLJIT_ASSERT((type & 0xff) == SLJIT_EQUAL || (type & 0xff) == SLJIT_NOT_EQUAL);
+ ADJUST_LOCAL_OFFSET(src, srcw);
+
+ jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+ PTR_FAIL_IF(!jump);
+ set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
+ jump->flags |= IS_CBZ | IS_COND;
+
+ if (src & SLJIT_MEM) {
+ PTR_FAIL_IF(emit_op_mem(compiler, inv_bits ? INT_SIZE : WORD_SIZE, TMP_REG1, src, srcw, TMP_REG1));
+ src = TMP_REG1;
+ }
+ else if (src & SLJIT_IMM) {
+ PTR_FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
+ src = TMP_REG1;
+ }
+
+ SLJIT_ASSERT(FAST_IS_REG(src));
+
+ if ((type & 0xff) == SLJIT_EQUAL)
+ inv_bits |= 1 << 24;
+
+ PTR_FAIL_IF(push_inst(compiler, (CBZ ^ inv_bits) | (6 << 5) | RT(src)));
+ PTR_FAIL_IF(emit_imm64_const(compiler, TMP_REG1, 0));
+ jump->addr = compiler->size;
+ PTR_FAIL_IF(push_inst(compiler, BR | RN(TMP_REG1)));
+ return jump;
+}
+
+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);
+
+ if (!(src & SLJIT_IMM)) {
+ if (src & SLJIT_MEM) {
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src, srcw, TMP_REG1));
+ src = TMP_REG1;
+ }
+ return push_inst(compiler, ((type >= SLJIT_FAST_CALL) ? BLR : BR) | RN(src));
+ }
+
+ /* 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;
+
+ FAIL_IF(emit_imm64_const(compiler, TMP_REG1, 0));
+ jump->addr = compiler->size;
+ return push_inst(compiler, ((type >= SLJIT_FAST_CALL) ? BLR : BR) | RN(TMP_REG1));
+}
+
+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));
+
+#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);
+}
+
+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_r, src_r, flags, mem_flags;
+ sljit_ins cc;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+
+ cc = get_cc(type & 0xff);
+ dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
+
+ if (GET_OPCODE(op) < SLJIT_ADD) {
+ FAIL_IF(push_inst(compiler, CSINC | (cc << 12) | RD(dst_r) | RN(TMP_ZERO) | RM(TMP_ZERO)));
+
+ if (dst_r == TMP_REG1) {
+ mem_flags = (GET_OPCODE(op) == SLJIT_MOV ? WORD_SIZE : INT_SIZE) | STORE;
+ return emit_op_mem(compiler, mem_flags, TMP_REG1, dst, dstw, TMP_REG2);
+ }
+
+ return SLJIT_SUCCESS;
+ }
+
+ flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
+ mem_flags = WORD_SIZE;
+
+ if (op & SLJIT_I32_OP) {
+ flags |= INT_OP;
+ mem_flags = INT_SIZE;
+ }
+
+ src_r = dst;
+
+ if (dst & SLJIT_MEM) {
+ FAIL_IF(emit_op_mem(compiler, mem_flags, TMP_REG1, dst, dstw, TMP_REG1));
+ src_r = TMP_REG1;
+ }
+
+ FAIL_IF(push_inst(compiler, CSINC | (cc << 12) | RD(TMP_REG2) | RN(TMP_ZERO) | RM(TMP_ZERO)));
+ emit_op_imm(compiler, flags | GET_OPCODE(op), dst_r, src_r, TMP_REG2);
+
+ if (dst & SLJIT_MEM)
+ return emit_op_mem(compiler, mem_flags | STORE, TMP_REG1, dst, dstw, TMP_REG2);
+ 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_ins inv_bits = (dst_reg & SLJIT_I32_OP) ? (1 << 31) : 0;
+ sljit_ins cc;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_cmov(compiler, type, dst_reg, src, srcw));
+
+ if (SLJIT_UNLIKELY(src & SLJIT_IMM)) {
+ if (dst_reg & SLJIT_I32_OP)
+ srcw = (sljit_s32)srcw;
+ FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
+ src = TMP_REG1;
+ srcw = 0;
+ }
+
+ cc = get_cc(type & 0xff);
+ dst_reg &= ~SLJIT_I32_OP;
+
+ return push_inst(compiler, (CSEL ^ inv_bits) | (cc << 12) | RD(dst_reg) | RN(dst_reg) | RM(src));
+}
+
+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_u32 sign = 0, inst;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_mem(compiler, type, reg, mem, memw));
+
+ if ((mem & OFFS_REG_MASK) || (memw > 255 && memw < -256))
+ return SLJIT_ERR_UNSUPPORTED;
+
+ if (type & SLJIT_MEM_SUPP)
+ return SLJIT_SUCCESS;
+
+ switch (type & 0xff) {
+ case SLJIT_MOV:
+ case SLJIT_MOV_P:
+ inst = STURBI | (MEM_SIZE_SHIFT(WORD_SIZE) << 30) | 0x400;
+ break;
+ case SLJIT_MOV_S8:
+ sign = 1;
+ case SLJIT_MOV_U8:
+ inst = STURBI | (MEM_SIZE_SHIFT(BYTE_SIZE) << 30) | 0x400;
+ break;
+ case SLJIT_MOV_S16:
+ sign = 1;
+ case SLJIT_MOV_U16:
+ inst = STURBI | (MEM_SIZE_SHIFT(HALF_SIZE) << 30) | 0x400;
+ break;
+ case SLJIT_MOV_S32:
+ sign = 1;
+ case SLJIT_MOV_U32:
+ inst = STURBI | (MEM_SIZE_SHIFT(INT_SIZE) << 30) | 0x400;
+ break;
+ default:
+ SLJIT_UNREACHABLE();
+ inst = STURBI | (MEM_SIZE_SHIFT(WORD_SIZE) << 30) | 0x400;
+ break;
+ }
+
+ if (!(type & SLJIT_MEM_STORE))
+ inst |= sign ? 0x00800000 : 0x00400000;
+
+ if (type & SLJIT_MEM_PRE)
+ inst |= 0x800;
+
+ return push_inst(compiler, inst | RT(reg) | RN(mem & REG_MASK) | ((memw & 0x1ff) << 12));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fmem(struct sljit_compiler *compiler, sljit_s32 type,
+ sljit_s32 freg,
+ sljit_s32 mem, sljit_sw memw)
+{
+ sljit_u32 inst;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_fmem(compiler, type, freg, mem, memw));
+
+ if ((mem & OFFS_REG_MASK) || (memw > 255 && memw < -256))
+ return SLJIT_ERR_UNSUPPORTED;
+
+ if (type & SLJIT_MEM_SUPP)
+ return SLJIT_SUCCESS;
+
+ inst = STUR_FI | 0x80000400;
+
+ if (!(type & SLJIT_F32_OP))
+ inst |= 0x40000000;
+
+ if (!(type & SLJIT_MEM_STORE))
+ inst |= 0x00400000;
+
+ if (type & SLJIT_MEM_PRE)
+ inst |= 0x800;
+
+ return push_inst(compiler, inst | VT(freg) | RN(mem & REG_MASK) | ((memw & 0x1ff) << 12));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_local_base(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw offset)
+{
+ sljit_s32 dst_reg;
+ sljit_ins ins;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_get_local_base(compiler, dst, dstw, offset));
+
+ SLJIT_ASSERT (SLJIT_LOCALS_OFFSET_BASE == 0);
+
+ dst_reg = FAST_IS_REG(dst) ? dst : TMP_REG1;
+
+ if (offset <= 0xffffff && offset >= -0xffffff) {
+ ins = ADDI;
+ if (offset < 0) {
+ offset = -offset;
+ ins = SUBI;
+ }
+
+ if (offset <= 0xfff)
+ FAIL_IF(push_inst(compiler, ins | RD(dst_reg) | RN(SLJIT_SP) | (offset << 10)));
+ else {
+ FAIL_IF(push_inst(compiler, ins | RD(dst_reg) | RN(SLJIT_SP) | ((offset & 0xfff000) >> (12 - 10)) | (1 << 22)));
+
+ offset &= 0xfff;
+ if (offset != 0)
+ FAIL_IF(push_inst(compiler, ins | RD(dst_reg) | RN(dst_reg) | (offset << 10)));
+ }
+ }
+ else {
+ FAIL_IF(load_immediate (compiler, dst_reg, offset));
+ /* Add extended register form. */
+ FAIL_IF(push_inst(compiler, ADDE | (0x3 << 13) | RD(dst_reg) | RN(SLJIT_SP) | RM(dst_reg)));
+ }
+
+ if (SLJIT_UNLIKELY(dst & SLJIT_MEM))
+ return emit_op_mem(compiler, WORD_SIZE | STORE, dst_reg, dst, dstw, TMP_REG1);
+ return SLJIT_SUCCESS;
+}
+
+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 dst_r;
+
+ 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_);
+ set_const(const_, compiler);
+
+ dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
+ PTR_FAIL_IF(emit_imm64_const(compiler, dst_r, init_value));
+
+ if (dst & SLJIT_MEM)
+ PTR_FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, dst_r, dst, dstw, TMP_REG2));
+ return const_;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_target, sljit_sw executable_offset)
+{
+ sljit_ins* inst = (sljit_ins*)addr;
+ modify_imm64_const(inst, new_target);
+ inst = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 4);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant, sljit_sw executable_offset)
+{
+ sljit_ins* inst = (sljit_ins*)addr;
+ modify_imm64_const(inst, new_constant);
+ inst = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 4);
+}
projects / ossec-hids.git / blobdiff