--- /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)
+{
+#ifdef __SOFTFP__
+ return "ARM-Thumb2" SLJIT_CPUINFO " ABI:softfp";
+#else
+ return "ARM-Thumb2" SLJIT_CPUINFO " ABI:hardfp";
+#endif
+}
+
+/* Length of an instruction word. */
+typedef sljit_u32 sljit_ins;
+
+/* Last register + 1. */
+#define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2)
+#define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3)
+#define TMP_PC (SLJIT_NUMBER_OF_REGISTERS + 4)
+
+#define TMP_FREG1 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
+#define TMP_FREG2 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)
+
+/* See sljit_emit_enter and sljit_emit_op0 if you want to change them. */
+static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 5] = {
+ 0, 0, 1, 2, 3, 11, 10, 9, 8, 7, 6, 5, 4, 13, 12, 14, 15
+};
+
+static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = {
+ 0, 0, 1, 2, 3, 4, 5, 6, 7
+};
+
+#define COPY_BITS(src, from, to, bits) \
+ ((from >= to ? (src >> (from - to)) : (src << (to - from))) & (((1 << bits) - 1) << to))
+
+/* Thumb16 encodings. */
+#define RD3(rd) (reg_map[rd])
+#define RN3(rn) (reg_map[rn] << 3)
+#define RM3(rm) (reg_map[rm] << 6)
+#define RDN3(rdn) (reg_map[rdn] << 8)
+#define IMM3(imm) (imm << 6)
+#define IMM8(imm) (imm)
+
+/* Thumb16 helpers. */
+#define SET_REGS44(rd, rn) \
+ ((reg_map[rn] << 3) | (reg_map[rd] & 0x7) | ((reg_map[rd] & 0x8) << 4))
+#define IS_2_LO_REGS(reg1, reg2) \
+ (reg_map[reg1] <= 7 && reg_map[reg2] <= 7)
+#define IS_3_LO_REGS(reg1, reg2, reg3) \
+ (reg_map[reg1] <= 7 && reg_map[reg2] <= 7 && reg_map[reg3] <= 7)
+
+/* Thumb32 encodings. */
+#define RD4(rd) (reg_map[rd] << 8)
+#define RN4(rn) (reg_map[rn] << 16)
+#define RM4(rm) (reg_map[rm])
+#define RT4(rt) (reg_map[rt] << 12)
+#define DD4(dd) (freg_map[dd] << 12)
+#define DN4(dn) (freg_map[dn] << 16)
+#define DM4(dm) (freg_map[dm])
+#define IMM5(imm) \
+ (COPY_BITS(imm, 2, 12, 3) | ((imm & 0x3) << 6))
+#define IMM12(imm) \
+ (COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff))
+
+/* --------------------------------------------------------------------- */
+/* Instrucion forms */
+/* --------------------------------------------------------------------- */
+
+/* dot '.' changed to _
+ I immediate form (possibly followed by number of immediate bits). */
+#define ADCI 0xf1400000
+#define ADCS 0x4140
+#define ADC_W 0xeb400000
+#define ADD 0x4400
+#define ADDS 0x1800
+#define ADDSI3 0x1c00
+#define ADDSI8 0x3000
+#define ADD_W 0xeb000000
+#define ADDWI 0xf2000000
+#define ADD_SP 0xb000
+#define ADD_W 0xeb000000
+#define ADD_WI 0xf1000000
+#define ANDI 0xf0000000
+#define ANDS 0x4000
+#define AND_W 0xea000000
+#define ASRS 0x4100
+#define ASRSI 0x1000
+#define ASR_W 0xfa40f000
+#define ASR_WI 0xea4f0020
+#define BCC 0xd000
+#define BICI 0xf0200000
+#define BKPT 0xbe00
+#define BLX 0x4780
+#define BX 0x4700
+#define CLZ 0xfab0f080
+#define CMNI_W 0xf1100f00
+#define CMP 0x4280
+#define CMPI 0x2800
+#define CMPI_W 0xf1b00f00
+#define CMP_X 0x4500
+#define CMP_W 0xebb00f00
+#define EORI 0xf0800000
+#define EORS 0x4040
+#define EOR_W 0xea800000
+#define IT 0xbf00
+#define LDRI 0xf8500800
+#define LSLS 0x4080
+#define LSLSI 0x0000
+#define LSL_W 0xfa00f000
+#define LSL_WI 0xea4f0000
+#define LSRS 0x40c0
+#define LSRSI 0x0800
+#define LSR_W 0xfa20f000
+#define LSR_WI 0xea4f0010
+#define MOV 0x4600
+#define MOVS 0x0000
+#define MOVSI 0x2000
+#define MOVT 0xf2c00000
+#define MOVW 0xf2400000
+#define MOV_W 0xea4f0000
+#define MOV_WI 0xf04f0000
+#define MUL 0xfb00f000
+#define MVNS 0x43c0
+#define MVN_W 0xea6f0000
+#define MVN_WI 0xf06f0000
+#define NOP 0xbf00
+#define ORNI 0xf0600000
+#define ORRI 0xf0400000
+#define ORRS 0x4300
+#define ORR_W 0xea400000
+#define POP 0xbc00
+#define POP_W 0xe8bd0000
+#define PUSH 0xb400
+#define PUSH_W 0xe92d0000
+#define RSB_WI 0xf1c00000
+#define RSBSI 0x4240
+#define SBCI 0xf1600000
+#define SBCS 0x4180
+#define SBC_W 0xeb600000
+#define SDIV 0xfb90f0f0
+#define SMULL 0xfb800000
+#define STR_SP 0x9000
+#define SUBS 0x1a00
+#define SUBSI3 0x1e00
+#define SUBSI8 0x3800
+#define SUB_W 0xeba00000
+#define SUBWI 0xf2a00000
+#define SUB_SP 0xb080
+#define SUB_WI 0xf1a00000
+#define SXTB 0xb240
+#define SXTB_W 0xfa4ff080
+#define SXTH 0xb200
+#define SXTH_W 0xfa0ff080
+#define TST 0x4200
+#define UDIV 0xfbb0f0f0
+#define UMULL 0xfba00000
+#define UXTB 0xb2c0
+#define UXTB_W 0xfa5ff080
+#define UXTH 0xb280
+#define UXTH_W 0xfa1ff080
+#define VABS_F32 0xeeb00ac0
+#define VADD_F32 0xee300a00
+#define VCMP_F32 0xeeb40a40
+#define VCVT_F32_S32 0xeeb80ac0
+#define VCVT_F64_F32 0xeeb70ac0
+#define VCVT_S32_F32 0xeebd0ac0
+#define VDIV_F32 0xee800a00
+#define VMOV_F32 0xeeb00a40
+#define VMOV 0xee000a10
+#define VMOV2 0xec400a10
+#define VMRS 0xeef1fa10
+#define VMUL_F32 0xee200a00
+#define VNEG_F32 0xeeb10a40
+#define VSTR_F32 0xed000a00
+#define VSUB_F32 0xee300a40
+
+static sljit_s32 push_inst16(struct sljit_compiler *compiler, sljit_ins inst)
+{
+ sljit_u16 *ptr;
+ SLJIT_ASSERT(!(inst & 0xffff0000));
+
+ ptr = (sljit_u16*)ensure_buf(compiler, sizeof(sljit_u16));
+ FAIL_IF(!ptr);
+ *ptr = inst;
+ compiler->size++;
+ return SLJIT_SUCCESS;
+}
+
+static sljit_s32 push_inst32(struct sljit_compiler *compiler, sljit_ins inst)
+{
+ sljit_u16 *ptr = (sljit_u16*)ensure_buf(compiler, sizeof(sljit_ins));
+ FAIL_IF(!ptr);
+ *ptr++ = inst >> 16;
+ *ptr = inst;
+ compiler->size += 2;
+ return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE sljit_s32 emit_imm32_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_uw imm)
+{
+ FAIL_IF(push_inst32(compiler, MOVW | RD4(dst)
+ | COPY_BITS(imm, 12, 16, 4) | COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff)));
+ return push_inst32(compiler, MOVT | RD4(dst)
+ | COPY_BITS(imm, 12 + 16, 16, 4) | COPY_BITS(imm, 11 + 16, 26, 1) | COPY_BITS(imm, 8 + 16, 12, 3) | ((imm & 0xff0000) >> 16));
+}
+
+static SLJIT_INLINE void modify_imm32_const(sljit_u16 *inst, sljit_uw new_imm)
+{
+ sljit_s32 dst = inst[1] & 0x0f00;
+ SLJIT_ASSERT(((inst[0] & 0xfbf0) == (MOVW >> 16)) && ((inst[2] & 0xfbf0) == (MOVT >> 16)) && dst == (inst[3] & 0x0f00));
+ inst[0] = (MOVW >> 16) | COPY_BITS(new_imm, 12, 0, 4) | COPY_BITS(new_imm, 11, 10, 1);
+ inst[1] = dst | COPY_BITS(new_imm, 8, 12, 3) | (new_imm & 0xff);
+ inst[2] = (MOVT >> 16) | COPY_BITS(new_imm, 12 + 16, 0, 4) | COPY_BITS(new_imm, 11 + 16, 10, 1);
+ inst[3] = dst | COPY_BITS(new_imm, 8 + 16, 12, 3) | ((new_imm & 0xff0000) >> 16);
+}
+
+static SLJIT_INLINE sljit_s32 detect_jump_type(struct sljit_jump *jump, sljit_u16 *code_ptr, sljit_u16 *code, sljit_sw executable_offset)
+{
+ sljit_sw diff;
+
+ if (jump->flags & SLJIT_REWRITABLE_JUMP)
+ return 0;
+
+ if (jump->flags & JUMP_ADDR) {
+ /* Branch to ARM code is not optimized yet. */
+ if (!(jump->u.target & 0x1))
+ return 0;
+ diff = ((sljit_sw)jump->u.target - (sljit_sw)(code_ptr + 2) - executable_offset) >> 1;
+ }
+ else {
+ SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+ diff = ((sljit_sw)(code + jump->u.label->size) - (sljit_sw)(code_ptr + 2)) >> 1;
+ }
+
+ if (jump->flags & IS_COND) {
+ SLJIT_ASSERT(!(jump->flags & IS_BL));
+ if (diff <= 127 && diff >= -128) {
+ jump->flags |= PATCH_TYPE1;
+ return 5;
+ }
+ if (diff <= 524287 && diff >= -524288) {
+ jump->flags |= PATCH_TYPE2;
+ return 4;
+ }
+ /* +1 comes from the prefix IT instruction. */
+ diff--;
+ if (diff <= 8388607 && diff >= -8388608) {
+ jump->flags |= PATCH_TYPE3;
+ return 3;
+ }
+ }
+ else if (jump->flags & IS_BL) {
+ if (diff <= 8388607 && diff >= -8388608) {
+ jump->flags |= PATCH_BL;
+ return 3;
+ }
+ }
+ else {
+ if (diff <= 1023 && diff >= -1024) {
+ jump->flags |= PATCH_TYPE4;
+ return 4;
+ }
+ if (diff <= 8388607 && diff >= -8388608) {
+ jump->flags |= PATCH_TYPE5;
+ return 3;
+ }
+ }
+
+ return 0;
+}
+
+static SLJIT_INLINE void set_jump_instruction(struct sljit_jump *jump, sljit_sw executable_offset)
+{
+ sljit_s32 type = (jump->flags >> 4) & 0xf;
+ sljit_sw diff;
+ sljit_u16 *jump_inst;
+ sljit_s32 s, j1, j2;
+
+ if (SLJIT_UNLIKELY(type == 0)) {
+ modify_imm32_const((sljit_u16*)jump->addr, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target);
+ return;
+ }
+
+ if (jump->flags & JUMP_ADDR) {
+ SLJIT_ASSERT(jump->u.target & 0x1);
+ diff = ((sljit_sw)jump->u.target - (sljit_sw)(jump->addr + sizeof(sljit_u32)) - executable_offset) >> 1;
+ }
+ else {
+ SLJIT_ASSERT(jump->u.label->addr & 0x1);
+ diff = ((sljit_sw)(jump->u.label->addr) - (sljit_sw)(jump->addr + sizeof(sljit_u32)) - executable_offset) >> 1;
+ }
+ jump_inst = (sljit_u16*)jump->addr;
+
+ switch (type) {
+ case 1:
+ /* Encoding T1 of 'B' instruction */
+ SLJIT_ASSERT(diff <= 127 && diff >= -128 && (jump->flags & IS_COND));
+ jump_inst[0] = 0xd000 | (jump->flags & 0xf00) | (diff & 0xff);
+ return;
+ case 2:
+ /* Encoding T3 of 'B' instruction */
+ SLJIT_ASSERT(diff <= 524287 && diff >= -524288 && (jump->flags & IS_COND));
+ jump_inst[0] = 0xf000 | COPY_BITS(jump->flags, 8, 6, 4) | COPY_BITS(diff, 11, 0, 6) | COPY_BITS(diff, 19, 10, 1);
+ jump_inst[1] = 0x8000 | COPY_BITS(diff, 17, 13, 1) | COPY_BITS(diff, 18, 11, 1) | (diff & 0x7ff);
+ return;
+ case 3:
+ SLJIT_ASSERT(jump->flags & IS_COND);
+ *jump_inst++ = IT | ((jump->flags >> 4) & 0xf0) | 0x8;
+ diff--;
+ type = 5;
+ break;
+ case 4:
+ /* Encoding T2 of 'B' instruction */
+ SLJIT_ASSERT(diff <= 1023 && diff >= -1024 && !(jump->flags & IS_COND));
+ jump_inst[0] = 0xe000 | (diff & 0x7ff);
+ return;
+ }
+
+ SLJIT_ASSERT(diff <= 8388607 && diff >= -8388608);
+
+ /* Really complex instruction form for branches. */
+ s = (diff >> 23) & 0x1;
+ j1 = (~(diff >> 22) ^ s) & 0x1;
+ j2 = (~(diff >> 21) ^ s) & 0x1;
+ jump_inst[0] = 0xf000 | (s << 10) | COPY_BITS(diff, 11, 0, 10);
+ jump_inst[1] = (j1 << 13) | (j2 << 11) | (diff & 0x7ff);
+
+ /* The others have a common form. */
+ if (type == 5) /* Encoding T4 of 'B' instruction */
+ jump_inst[1] |= 0x9000;
+ else if (type == 6) /* Encoding T1 of 'BL' instruction */
+ jump_inst[1] |= 0xd000;
+ else
+ SLJIT_UNREACHABLE();
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
+{
+ struct sljit_memory_fragment *buf;
+ sljit_u16 *code;
+ sljit_u16 *code_ptr;
+ sljit_u16 *buf_ptr;
+ sljit_u16 *buf_end;
+ sljit_uw half_count;
+ sljit_sw executable_offset;
+
+ 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_u16*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_u16));
+ PTR_FAIL_WITH_EXEC_IF(code);
+ buf = compiler->buf;
+
+ code_ptr = code;
+ half_count = 0;
+ executable_offset = SLJIT_EXEC_OFFSET(code);
+
+ label = compiler->labels;
+ jump = compiler->jumps;
+ const_ = compiler->consts;
+
+ do {
+ buf_ptr = (sljit_u16*)buf->memory;
+ buf_end = buf_ptr + (buf->used_size >> 1);
+ do {
+ *code_ptr = *buf_ptr++;
+ /* These structures are ordered by their address. */
+ SLJIT_ASSERT(!label || label->size >= half_count);
+ SLJIT_ASSERT(!jump || jump->addr >= half_count);
+ SLJIT_ASSERT(!const_ || const_->addr >= half_count);
+ if (label && label->size == half_count) {
+ label->addr = ((sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset)) | 0x1;
+ label->size = code_ptr - code;
+ label = label->next;
+ }
+ if (jump && jump->addr == half_count) {
+ jump->addr = (sljit_uw)code_ptr - ((jump->flags & IS_COND) ? 10 : 8);
+ code_ptr -= detect_jump_type(jump, code_ptr, code, executable_offset);
+ jump = jump->next;
+ }
+ if (const_ && const_->addr == half_count) {
+ const_->addr = (sljit_uw)code_ptr;
+ const_ = const_->next;
+ }
+ code_ptr ++;
+ half_count ++;
+ } while (buf_ptr < buf_end);
+
+ buf = buf->next;
+ } while (buf);
+
+ if (label && label->size == half_count) {
+ label->addr = ((sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset)) | 0x1;
+ 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) {
+ set_jump_instruction(jump, executable_offset);
+ jump = jump->next;
+ }
+
+ compiler->error = SLJIT_ERR_COMPILED;
+ compiler->executable_offset = executable_offset;
+ compiler->executable_size = (code_ptr - code) * sizeof(sljit_u16);
+
+ code = (sljit_u16 *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
+ code_ptr = (sljit_u16 *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
+
+ SLJIT_CACHE_FLUSH(code, code_ptr);
+ /* Set thumb mode flag. */
+ return (void*)((sljit_uw)code | 0x1);
+}
+
+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 INVALID_IMM 0x80000000
+static sljit_uw get_imm(sljit_uw imm)
+{
+ /* Thumb immediate form. */
+ sljit_s32 counter;
+
+ if (imm <= 0xff)
+ return imm;
+
+ if ((imm & 0xffff) == (imm >> 16)) {
+ /* Some special cases. */
+ if (!(imm & 0xff00))
+ return (1 << 12) | (imm & 0xff);
+ if (!(imm & 0xff))
+ return (2 << 12) | ((imm >> 8) & 0xff);
+ if ((imm & 0xff00) == ((imm & 0xff) << 8))
+ return (3 << 12) | (imm & 0xff);
+ }
+
+ /* Assembly optimization: count leading zeroes? */
+ counter = 8;
+ if (!(imm & 0xffff0000)) {
+ counter += 16;
+ imm <<= 16;
+ }
+ if (!(imm & 0xff000000)) {
+ counter += 8;
+ imm <<= 8;
+ }
+ if (!(imm & 0xf0000000)) {
+ counter += 4;
+ imm <<= 4;
+ }
+ if (!(imm & 0xc0000000)) {
+ counter += 2;
+ imm <<= 2;
+ }
+ if (!(imm & 0x80000000)) {
+ counter += 1;
+ imm <<= 1;
+ }
+ /* Since imm >= 128, this must be true. */
+ SLJIT_ASSERT(counter <= 31);
+
+ if (imm & 0x00ffffff)
+ return INVALID_IMM; /* Cannot be encoded. */
+
+ return ((imm >> 24) & 0x7f) | COPY_BITS(counter, 4, 26, 1) | COPY_BITS(counter, 1, 12, 3) | COPY_BITS(counter, 0, 7, 1);
+}
+
+static sljit_s32 load_immediate(struct sljit_compiler *compiler, sljit_s32 dst, sljit_uw imm)
+{
+ sljit_uw tmp;
+
+ /* MOVS cannot be used since it destroy flags. */
+
+ if (imm >= 0x10000) {
+ tmp = get_imm(imm);
+ if (tmp != INVALID_IMM)
+ return push_inst32(compiler, MOV_WI | RD4(dst) | tmp);
+ tmp = get_imm(~imm);
+ if (tmp != INVALID_IMM)
+ return push_inst32(compiler, MVN_WI | RD4(dst) | tmp);
+ }
+
+ /* set low 16 bits, set hi 16 bits to 0. */
+ FAIL_IF(push_inst32(compiler, MOVW | RD4(dst)
+ | COPY_BITS(imm, 12, 16, 4) | COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff)));
+
+ /* set hi 16 bit if needed. */
+ if (imm >= 0x10000)
+ return push_inst32(compiler, MOVT | RD4(dst)
+ | COPY_BITS(imm, 12 + 16, 16, 4) | COPY_BITS(imm, 11 + 16, 26, 1) | COPY_BITS(imm, 8 + 16, 12, 3) | ((imm & 0xff0000) >> 16));
+ return SLJIT_SUCCESS;
+}
+
+#define ARG1_IMM 0x0010000
+#define ARG2_IMM 0x0020000
+/* SET_FLAGS must be 0x100000 as it is also the value of S bit (can be used for optimization). */
+#define SET_FLAGS 0x0100000
+#define UNUSED_RETURN 0x0200000
+
+static sljit_s32 emit_op_imm(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 dst, sljit_uw arg1, sljit_uw arg2)
+{
+ /* dst must be register, TMP_REG1
+ arg1 must be register, imm
+ arg2 must be register, imm */
+ sljit_s32 reg;
+ sljit_uw imm, nimm;
+
+ if (SLJIT_UNLIKELY((flags & (ARG1_IMM | ARG2_IMM)) == (ARG1_IMM | ARG2_IMM))) {
+ /* Both are immediates, no temporaries are used. */
+ flags &= ~ARG1_IMM;
+ 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 (flags & 0xffff) {
+ case SLJIT_CLZ:
+ case SLJIT_MUL:
+ /* No form with immediate operand. */
+ break;
+ case SLJIT_MOV:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && (flags & ARG2_IMM) && arg1 == TMP_REG2);
+ return load_immediate(compiler, dst, imm);
+ case SLJIT_NOT:
+ if (!(flags & SET_FLAGS))
+ return load_immediate(compiler, dst, ~imm);
+ /* Since the flags should be set, we just fallback to the register mode.
+ Although some clever things could be done here, "NOT IMM" does not worth the efforts. */
+ break;
+ case SLJIT_ADD:
+ nimm = -imm;
+ if (IS_2_LO_REGS(reg, dst)) {
+ if (imm <= 0x7)
+ return push_inst16(compiler, ADDSI3 | IMM3(imm) | RD3(dst) | RN3(reg));
+ if (nimm <= 0x7)
+ return push_inst16(compiler, SUBSI3 | IMM3(nimm) | RD3(dst) | RN3(reg));
+ if (reg == dst) {
+ if (imm <= 0xff)
+ return push_inst16(compiler, ADDSI8 | IMM8(imm) | RDN3(dst));
+ if (nimm <= 0xff)
+ return push_inst16(compiler, SUBSI8 | IMM8(nimm) | RDN3(dst));
+ }
+ }
+ if (!(flags & SET_FLAGS)) {
+ if (imm <= 0xfff)
+ return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(imm));
+ if (nimm <= 0xfff)
+ return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(nimm));
+ }
+ nimm = get_imm(imm);
+ if (nimm != INVALID_IMM)
+ return push_inst32(compiler, ADD_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
+ nimm = get_imm(-imm);
+ if (nimm != INVALID_IMM)
+ return push_inst32(compiler, SUB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
+ break;
+ case SLJIT_ADDC:
+ imm = get_imm(imm);
+ if (imm != INVALID_IMM)
+ return push_inst32(compiler, ADCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+ break;
+ case SLJIT_SUB:
+ /* SUB operation can be replaced by ADD because of the negative carry flag. */
+ if (flags & ARG1_IMM) {
+ if (imm == 0 && IS_2_LO_REGS(reg, dst))
+ return push_inst16(compiler, RSBSI | RD3(dst) | RN3(reg));
+ imm = get_imm(imm);
+ if (imm != INVALID_IMM)
+ return push_inst32(compiler, RSB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+ break;
+ }
+ if (flags & UNUSED_RETURN) {
+ if (imm <= 0xff && reg_map[reg] <= 7)
+ return push_inst16(compiler, CMPI | IMM8(imm) | RDN3(reg));
+ nimm = get_imm(imm);
+ if (nimm != INVALID_IMM)
+ return push_inst32(compiler, CMPI_W | RN4(reg) | nimm);
+ nimm = get_imm(-imm);
+ if (nimm != INVALID_IMM)
+ return push_inst32(compiler, CMNI_W | RN4(reg) | nimm);
+ }
+ nimm = -imm;
+ if (IS_2_LO_REGS(reg, dst)) {
+ if (imm <= 0x7)
+ return push_inst16(compiler, SUBSI3 | IMM3(imm) | RD3(dst) | RN3(reg));
+ if (nimm <= 0x7)
+ return push_inst16(compiler, ADDSI3 | IMM3(nimm) | RD3(dst) | RN3(reg));
+ if (reg == dst) {
+ if (imm <= 0xff)
+ return push_inst16(compiler, SUBSI8 | IMM8(imm) | RDN3(dst));
+ if (nimm <= 0xff)
+ return push_inst16(compiler, ADDSI8 | IMM8(nimm) | RDN3(dst));
+ }
+ }
+ if (!(flags & SET_FLAGS)) {
+ if (imm <= 0xfff)
+ return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(imm));
+ if (nimm <= 0xfff)
+ return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(nimm));
+ }
+ nimm = get_imm(imm);
+ if (nimm != INVALID_IMM)
+ return push_inst32(compiler, SUB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
+ nimm = get_imm(-imm);
+ if (nimm != INVALID_IMM)
+ return push_inst32(compiler, ADD_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
+ break;
+ case SLJIT_SUBC:
+ if (flags & ARG1_IMM)
+ break;
+ imm = get_imm(imm);
+ if (imm != INVALID_IMM)
+ return push_inst32(compiler, SBCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+ break;
+ case SLJIT_AND:
+ nimm = get_imm(imm);
+ if (nimm != INVALID_IMM)
+ return push_inst32(compiler, ANDI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
+ imm = get_imm(imm);
+ if (imm != INVALID_IMM)
+ return push_inst32(compiler, BICI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+ break;
+ case SLJIT_OR:
+ nimm = get_imm(imm);
+ if (nimm != INVALID_IMM)
+ return push_inst32(compiler, ORRI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
+ imm = get_imm(imm);
+ if (imm != INVALID_IMM)
+ return push_inst32(compiler, ORNI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+ break;
+ case SLJIT_XOR:
+ imm = get_imm(imm);
+ if (imm != INVALID_IMM)
+ return push_inst32(compiler, EORI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+ break;
+ case SLJIT_SHL:
+ case SLJIT_LSHR:
+ case SLJIT_ASHR:
+ if (flags & ARG1_IMM)
+ break;
+ imm &= 0x1f;
+ if (imm == 0) {
+ if (!(flags & SET_FLAGS))
+ return push_inst16(compiler, MOV | SET_REGS44(dst, reg));
+ if (IS_2_LO_REGS(dst, reg))
+ return push_inst16(compiler, MOVS | RD3(dst) | RN3(reg));
+ return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(dst) | RM4(reg));
+ }
+ switch (flags & 0xffff) {
+ case SLJIT_SHL:
+ if (IS_2_LO_REGS(dst, reg))
+ return push_inst16(compiler, LSLSI | RD3(dst) | RN3(reg) | (imm << 6));
+ return push_inst32(compiler, LSL_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
+ case SLJIT_LSHR:
+ if (IS_2_LO_REGS(dst, reg))
+ return push_inst16(compiler, LSRSI | RD3(dst) | RN3(reg) | (imm << 6));
+ return push_inst32(compiler, LSR_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
+ default: /* SLJIT_ASHR */
+ if (IS_2_LO_REGS(dst, reg))
+ return push_inst16(compiler, ASRSI | RD3(dst) | RN3(reg) | (imm << 6));
+ return push_inst32(compiler, ASR_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
+ }
+ default:
+ SLJIT_UNREACHABLE();
+ break;
+ }
+
+ if (flags & ARG2_IMM) {
+ imm = arg2;
+ arg2 = (arg1 == TMP_REG1) ? TMP_REG2 : TMP_REG1;
+ FAIL_IF(load_immediate(compiler, arg2, imm));
+ }
+ else {
+ imm = arg1;
+ arg1 = (arg2 == TMP_REG1) ? TMP_REG2 : TMP_REG1;
+ FAIL_IF(load_immediate(compiler, arg1, imm));
+ }
+
+ SLJIT_ASSERT(arg1 != arg2);
+ }
+
+ /* Both arguments are registers. */
+ switch (flags & 0xffff) {
+ case SLJIT_MOV:
+ case SLJIT_MOV_U32:
+ case SLJIT_MOV_S32:
+ case SLJIT_MOV_P:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
+ if (dst == arg2)
+ return SLJIT_SUCCESS;
+ return push_inst16(compiler, MOV | SET_REGS44(dst, arg2));
+ case SLJIT_MOV_U8:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
+ if (IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, UXTB | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, UXTB_W | RD4(dst) | RM4(arg2));
+ case SLJIT_MOV_S8:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
+ if (IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, SXTB | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, SXTB_W | RD4(dst) | RM4(arg2));
+ case SLJIT_MOV_U16:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
+ if (IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, UXTH | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, UXTH_W | RD4(dst) | RM4(arg2));
+ case SLJIT_MOV_S16:
+ SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
+ if (IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, SXTH | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, SXTH_W | RD4(dst) | RM4(arg2));
+ case SLJIT_NOT:
+ SLJIT_ASSERT(arg1 == TMP_REG2);
+ if (IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, MVNS | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, MVN_W | (flags & SET_FLAGS) | RD4(dst) | RM4(arg2));
+ case SLJIT_CLZ:
+ SLJIT_ASSERT(arg1 == TMP_REG2);
+ FAIL_IF(push_inst32(compiler, CLZ | RN4(arg2) | RD4(dst) | RM4(arg2)));
+ return SLJIT_SUCCESS;
+ case SLJIT_ADD:
+ if (IS_3_LO_REGS(dst, arg1, arg2))
+ return push_inst16(compiler, ADDS | RD3(dst) | RN3(arg1) | RM3(arg2));
+ if (dst == arg1 && !(flags & SET_FLAGS))
+ return push_inst16(compiler, ADD | SET_REGS44(dst, arg2));
+ return push_inst32(compiler, ADD_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+ case SLJIT_ADDC:
+ if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, ADCS | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, ADC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+ case SLJIT_SUB:
+ if (flags & UNUSED_RETURN) {
+ if (IS_2_LO_REGS(arg1, arg2))
+ return push_inst16(compiler, CMP | RD3(arg1) | RN3(arg2));
+ return push_inst16(compiler, CMP_X | SET_REGS44(arg1, arg2));
+ }
+ if (IS_3_LO_REGS(dst, arg1, arg2))
+ return push_inst16(compiler, SUBS | RD3(dst) | RN3(arg1) | RM3(arg2));
+ return push_inst32(compiler, SUB_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+ case SLJIT_SUBC:
+ if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, SBCS | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, SBC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+ case SLJIT_MUL:
+ if (!(flags & SET_FLAGS))
+ return push_inst32(compiler, MUL | RD4(dst) | RN4(arg1) | RM4(arg2));
+ SLJIT_ASSERT(dst != TMP_REG2);
+ FAIL_IF(push_inst32(compiler, SMULL | RT4(dst) | RD4(TMP_REG2) | RN4(arg1) | RM4(arg2)));
+ /* cmp TMP_REG2, dst asr #31. */
+ return push_inst32(compiler, CMP_W | RN4(TMP_REG2) | 0x70e0 | RM4(dst));
+ case SLJIT_AND:
+ if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, ANDS | RD3(dst) | RN3(arg2));
+ if ((flags & UNUSED_RETURN) && IS_2_LO_REGS(arg1, arg2))
+ return push_inst16(compiler, TST | RD3(arg1) | RN3(arg2));
+ return push_inst32(compiler, AND_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+ case SLJIT_OR:
+ if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, ORRS | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, ORR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+ case SLJIT_XOR:
+ if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, EORS | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, EOR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+ case SLJIT_SHL:
+ if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, LSLS | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, LSL_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+ case SLJIT_LSHR:
+ if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, LSRS | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, LSR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+ case SLJIT_ASHR:
+ if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
+ return push_inst16(compiler, ASRS | RD3(dst) | RN3(arg2));
+ return push_inst32(compiler, ASR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+ }
+
+ SLJIT_UNREACHABLE();
+ return SLJIT_SUCCESS;
+}
+
+#define STORE 0x01
+#define SIGNED 0x02
+
+#define WORD_SIZE 0x00
+#define BYTE_SIZE 0x04
+#define HALF_SIZE 0x08
+#define PRELOAD 0x0c
+
+#define IS_WORD_SIZE(flags) (!(flags & (BYTE_SIZE | HALF_SIZE)))
+#define OFFSET_CHECK(imm, shift) (!(argw & ~(imm << shift)))
+
+/*
+ 1st letter:
+ w = word
+ b = byte
+ h = half
+
+ 2nd letter:
+ s = signed
+ u = unsigned
+
+ 3rd letter:
+ l = load
+ s = store
+*/
+
+static const sljit_ins sljit_mem16[12] = {
+/* w u l */ 0x5800 /* ldr */,
+/* w u s */ 0x5000 /* str */,
+/* w s l */ 0x5800 /* ldr */,
+/* w s s */ 0x5000 /* str */,
+
+/* b u l */ 0x5c00 /* ldrb */,
+/* b u s */ 0x5400 /* strb */,
+/* b s l */ 0x5600 /* ldrsb */,
+/* b s s */ 0x5400 /* strb */,
+
+/* h u l */ 0x5a00 /* ldrh */,
+/* h u s */ 0x5200 /* strh */,
+/* h s l */ 0x5e00 /* ldrsh */,
+/* h s s */ 0x5200 /* strh */,
+};
+
+static const sljit_ins sljit_mem16_imm5[12] = {
+/* w u l */ 0x6800 /* ldr imm5 */,
+/* w u s */ 0x6000 /* str imm5 */,
+/* w s l */ 0x6800 /* ldr imm5 */,
+/* w s s */ 0x6000 /* str imm5 */,
+
+/* b u l */ 0x7800 /* ldrb imm5 */,
+/* b u s */ 0x7000 /* strb imm5 */,
+/* b s l */ 0x0000 /* not allowed */,
+/* b s s */ 0x7000 /* strb imm5 */,
+
+/* h u l */ 0x8800 /* ldrh imm5 */,
+/* h u s */ 0x8000 /* strh imm5 */,
+/* h s l */ 0x0000 /* not allowed */,
+/* h s s */ 0x8000 /* strh imm5 */,
+};
+
+#define MEM_IMM8 0xc00
+#define MEM_IMM12 0x800000
+static const sljit_ins sljit_mem32[13] = {
+/* w u l */ 0xf8500000 /* ldr.w */,
+/* w u s */ 0xf8400000 /* str.w */,
+/* w s l */ 0xf8500000 /* ldr.w */,
+/* w s s */ 0xf8400000 /* str.w */,
+
+/* b u l */ 0xf8100000 /* ldrb.w */,
+/* b u s */ 0xf8000000 /* strb.w */,
+/* b s l */ 0xf9100000 /* ldrsb.w */,
+/* b s s */ 0xf8000000 /* strb.w */,
+
+/* h u l */ 0xf8300000 /* ldrh.w */,
+/* h u s */ 0xf8200000 /* strsh.w */,
+/* h s l */ 0xf9300000 /* ldrsh.w */,
+/* h s s */ 0xf8200000 /* strsh.w */,
+
+/* p u l */ 0xf8100000 /* pld */,
+};
+
+/* Helper function. Dst should be reg + value, using at most 1 instruction, flags does not set. */
+static sljit_s32 emit_set_delta(struct sljit_compiler *compiler, sljit_s32 dst, sljit_s32 reg, sljit_sw value)
+{
+ if (value >= 0) {
+ if (value <= 0xfff)
+ return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(value));
+ value = get_imm(value);
+ if (value != INVALID_IMM)
+ return push_inst32(compiler, ADD_WI | RD4(dst) | RN4(reg) | value);
+ }
+ else {
+ value = -value;
+ if (value <= 0xfff)
+ return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(value));
+ value = get_imm(value);
+ if (value != INVALID_IMM)
+ return push_inst32(compiler, SUB_WI | RD4(dst) | RN4(reg) | value);
+ }
+ return SLJIT_ERR_UNSUPPORTED;
+}
+
+static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg,
+ sljit_s32 arg, sljit_sw argw, sljit_s32 tmp_reg)
+{
+ sljit_s32 other_r;
+ sljit_uw tmp;
+
+ SLJIT_ASSERT(arg & SLJIT_MEM);
+ SLJIT_ASSERT((arg & REG_MASK) != tmp_reg);
+ arg &= ~SLJIT_MEM;
+
+ if (SLJIT_UNLIKELY(!(arg & REG_MASK))) {
+ tmp = get_imm(argw & ~0xfff);
+ if (tmp != INVALID_IMM) {
+ FAIL_IF(push_inst32(compiler, MOV_WI | RD4(tmp_reg) | tmp));
+ return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(tmp_reg) | (argw & 0xfff));
+ }
+
+ FAIL_IF(load_immediate(compiler, tmp_reg, argw));
+ if (IS_2_LO_REGS(reg, tmp_reg) && sljit_mem16_imm5[flags])
+ return push_inst16(compiler, sljit_mem16_imm5[flags] | RD3(reg) | RN3(tmp_reg));
+ return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(tmp_reg));
+ }
+
+ if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
+ argw &= 0x3;
+ other_r = OFFS_REG(arg);
+ arg &= 0xf;
+
+ if (!argw && IS_3_LO_REGS(reg, arg, other_r))
+ return push_inst16(compiler, sljit_mem16[flags] | RD3(reg) | RN3(arg) | RM3(other_r));
+ return push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(other_r) | (argw << 4));
+ }
+
+ if (argw > 0xfff) {
+ tmp = get_imm(argw & ~0xfff);
+ if (tmp != INVALID_IMM) {
+ push_inst32(compiler, ADD_WI | RD4(tmp_reg) | RN4(arg) | tmp);
+ arg = tmp_reg;
+ argw = argw & 0xfff;
+ }
+ }
+ else if (argw < -0xff) {
+ tmp = get_imm(-argw & ~0xff);
+ if (tmp != INVALID_IMM) {
+ push_inst32(compiler, SUB_WI | RD4(tmp_reg) | RN4(arg) | tmp);
+ arg = tmp_reg;
+ argw = -(-argw & 0xff);
+ }
+ }
+
+ if (IS_2_LO_REGS(reg, arg) && sljit_mem16_imm5[flags]) {
+ tmp = 3;
+ if (IS_WORD_SIZE(flags)) {
+ if (OFFSET_CHECK(0x1f, 2))
+ tmp = 2;
+ }
+ else if (flags & BYTE_SIZE)
+ {
+ if (OFFSET_CHECK(0x1f, 0))
+ tmp = 0;
+ }
+ else {
+ SLJIT_ASSERT(flags & HALF_SIZE);
+ if (OFFSET_CHECK(0x1f, 1))
+ tmp = 1;
+ }
+
+ if (tmp < 3)
+ return push_inst16(compiler, sljit_mem16_imm5[flags] | RD3(reg) | RN3(arg) | (argw << (6 - tmp)));
+ }
+ else if (SLJIT_UNLIKELY(arg == SLJIT_SP) && IS_WORD_SIZE(flags) && OFFSET_CHECK(0xff, 2) && reg_map[reg] <= 7) {
+ /* SP based immediate. */
+ return push_inst16(compiler, STR_SP | ((flags & STORE) ? 0 : 0x800) | RDN3(reg) | (argw >> 2));
+ }
+
+ if (argw >= 0 && argw <= 0xfff)
+ return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(arg) | argw);
+ else if (argw < 0 && argw >= -0xff)
+ return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM8 | RT4(reg) | RN4(arg) | -argw);
+
+ SLJIT_ASSERT(arg != tmp_reg);
+
+ FAIL_IF(load_immediate(compiler, tmp_reg, argw));
+ if (IS_3_LO_REGS(reg, arg, tmp_reg))
+ return push_inst16(compiler, sljit_mem16[flags] | RD3(reg) | RN3(arg) | RM3(tmp_reg));
+ return push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(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, size, i, tmp;
+ sljit_ins push = 0;
+#ifdef _WIN32
+ sljit_uw imm;
+#endif
+
+ 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);
+
+ tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG;
+ for (i = SLJIT_S0; i >= tmp; i--)
+ push |= 1 << reg_map[i];
+
+ for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--)
+ push |= 1 << reg_map[i];
+
+ FAIL_IF((push & 0xff00)
+ ? push_inst32(compiler, PUSH_W | (1 << 14) | push)
+ : push_inst16(compiler, PUSH | (1 << 8) | push));
+
+ /* Stack must be aligned to 8 bytes: (LR, R4) */
+ size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1);
+ local_size = ((size + local_size + 7) & ~7) - size;
+ compiler->local_size = local_size;
+
+#ifdef _WIN32
+ if (local_size >= 256) {
+ if (local_size > 4096)
+ imm = get_imm(4096);
+ else
+ imm = get_imm(local_size & ~0xff);
+
+ SLJIT_ASSERT(imm != INVALID_IMM);
+ FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(SLJIT_SP) | imm));
+ }
+#else
+ if (local_size > 0) {
+ if (local_size <= (127 << 2))
+ FAIL_IF(push_inst16(compiler, SUB_SP | (local_size >> 2)));
+ else
+ FAIL_IF(emit_op_imm(compiler, SLJIT_SUB | ARG2_IMM, SLJIT_SP, SLJIT_SP, local_size));
+ }
+#endif
+
+ args = get_arg_count(arg_types);
+
+ if (args >= 1)
+ FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_S0, SLJIT_R0)));
+ if (args >= 2)
+ FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_S1, SLJIT_R1)));
+ if (args >= 3)
+ FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_S2, SLJIT_R2)));
+
+#ifdef _WIN32
+ if (local_size >= 256) {
+ if (local_size > 4096) {
+ imm = get_imm(4096);
+ SLJIT_ASSERT(imm != INVALID_IMM);
+
+ if (local_size < 4 * 4096) {
+ if (local_size > 2 * 4096) {
+ FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG2) | RN4(TMP_REG1)));
+ FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(TMP_REG1) | imm));
+ local_size -= 4096;
+ }
+
+ if (local_size > 2 * 4096) {
+ FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG2) | RN4(TMP_REG1)));
+ FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(TMP_REG1) | imm));
+ local_size -= 4096;
+ }
+
+ FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG2) | RN4(TMP_REG1)));
+ local_size -= 4096;
+
+ SLJIT_ASSERT(local_size > 0);
+ }
+ else {
+ FAIL_IF(load_immediate(compiler, SLJIT_R3, (local_size >> 12) - 1));
+ FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG2) | RN4(TMP_REG1)));
+ FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(TMP_REG1) | imm));
+ SLJIT_ASSERT(reg_map[SLJIT_R3] < 7);
+ FAIL_IF(push_inst16(compiler, SUBSI8 | RDN3(SLJIT_R3) | 1));
+ FAIL_IF(push_inst16(compiler, BCC | (0x1 << 8) /* not-equal */ | (-7 & 0xff)));
+
+ local_size &= 0xfff;
+
+ if (local_size != 0)
+ FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG2) | RN4(TMP_REG1)));
+ }
+
+ if (local_size >= 256) {
+ imm = get_imm(local_size & ~0xff);
+ SLJIT_ASSERT(imm != INVALID_IMM);
+
+ FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(TMP_REG1) | imm));
+ }
+ }
+
+ local_size &= 0xff;
+ FAIL_IF(push_inst32(compiler, LDRI | 0x400 | (local_size > 0 ? 0x100 : 0) | RT4(TMP_REG2) | RN4(TMP_REG1) | local_size));
+
+ FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_SP, TMP_REG1)));
+ }
+ else if (local_size > 0)
+ FAIL_IF(push_inst32(compiler, LDRI | 0x500 | RT4(TMP_REG1) | RN4(SLJIT_SP) | local_size));
+#endif
+
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
+ sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
+ sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
+{
+ sljit_s32 size;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
+ set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
+
+ size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1);
+ compiler->local_size = ((size + local_size + 7) & ~7) - size;
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
+{
+ sljit_s32 i, tmp;
+ sljit_ins pop = 0;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_return(compiler, op, src, srcw));
+
+ FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
+
+ if (compiler->local_size > 0) {
+ if (compiler->local_size <= (127 << 2))
+ FAIL_IF(push_inst16(compiler, ADD_SP | (compiler->local_size >> 2)));
+ else
+ FAIL_IF(emit_op_imm(compiler, SLJIT_ADD | ARG2_IMM, SLJIT_SP, SLJIT_SP, compiler->local_size));
+ }
+
+ tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG;
+ for (i = SLJIT_S0; i >= tmp; i--)
+ pop |= 1 << reg_map[i];
+
+ for (i = compiler->scratches; i >= SLJIT_FIRST_SAVED_REG; i--)
+ pop |= 1 << reg_map[i];
+
+ return (pop & 0xff00)
+ ? push_inst32(compiler, POP_W | (1 << 15) | pop)
+ : push_inst16(compiler, POP | (1 << 8) | pop);
+}
+
+/* --------------------------------------------------------------------- */
+/* Operators */
+/* --------------------------------------------------------------------- */
+
+#if !(defined __ARM_FEATURE_IDIV) && !(defined __ARM_ARCH_EXT_IDIV__)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef _WIN32
+extern unsigned long long __rt_udiv(unsigned int denominator, unsigned int numerator);
+extern long long __rt_sdiv(int denominator, int numerator);
+#elif defined(__GNUC__)
+extern unsigned int __aeabi_uidivmod(unsigned int numerator, int unsigned denominator);
+extern int __aeabi_idivmod(int numerator, int denominator);
+#else
+#error "Software divmod functions are needed"
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !__ARM_FEATURE_IDIV && !__ARM_ARCH_EXT_IDIV__ */
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
+{
+#if !(defined __ARM_FEATURE_IDIV) && !(defined __ARM_ARCH_EXT_IDIV__)
+ sljit_sw saved_reg_list[3];
+ sljit_sw saved_reg_count;
+#endif
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_op0(compiler, op));
+
+ op = GET_OPCODE(op);
+ switch (op) {
+ case SLJIT_BREAKPOINT:
+ return push_inst16(compiler, BKPT);
+ case SLJIT_NOP:
+ return push_inst16(compiler, NOP);
+ case SLJIT_LMUL_UW:
+ case SLJIT_LMUL_SW:
+ return push_inst32(compiler, (op == SLJIT_LMUL_UW ? UMULL : SMULL)
+ | (reg_map[SLJIT_R1] << 8)
+ | (reg_map[SLJIT_R0] << 12)
+ | (reg_map[SLJIT_R0] << 16)
+ | reg_map[SLJIT_R1]);
+#if (defined __ARM_FEATURE_IDIV) || (defined __ARM_ARCH_EXT_IDIV__)
+ case SLJIT_DIVMOD_UW:
+ case SLJIT_DIVMOD_SW:
+ FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG1, SLJIT_R0)));
+ FAIL_IF(push_inst32(compiler, (op == SLJIT_DIVMOD_UW ? UDIV : SDIV) | RD4(SLJIT_R0) | RN4(SLJIT_R0) | RM4(SLJIT_R1)));
+ FAIL_IF(push_inst32(compiler, MUL | RD4(SLJIT_R1) | RN4(SLJIT_R0) | RM4(SLJIT_R1)));
+ return push_inst32(compiler, SUB_W | RD4(SLJIT_R1) | RN4(TMP_REG1) | RM4(SLJIT_R1));
+ case SLJIT_DIV_UW:
+ case SLJIT_DIV_SW:
+ return push_inst32(compiler, (op == SLJIT_DIV_UW ? UDIV : SDIV) | RD4(SLJIT_R0) | RN4(SLJIT_R0) | RM4(SLJIT_R1));
+#else /* !__ARM_FEATURE_IDIV && !__ARM_ARCH_EXT_IDIV__ */
+ case SLJIT_DIVMOD_UW:
+ case SLJIT_DIVMOD_SW:
+ case SLJIT_DIV_UW:
+ case SLJIT_DIV_SW:
+ SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments);
+ SLJIT_ASSERT(reg_map[2] == 1 && reg_map[3] == 2 && reg_map[4] == 3);
+
+ saved_reg_count = 0;
+ if (compiler->scratches >= 4)
+ saved_reg_list[saved_reg_count++] = 3;
+ if (compiler->scratches >= 3)
+ saved_reg_list[saved_reg_count++] = 2;
+ if (op >= SLJIT_DIV_UW)
+ saved_reg_list[saved_reg_count++] = 1;
+
+ if (saved_reg_count > 0) {
+ FAIL_IF(push_inst32(compiler, 0xf84d0d00 | (saved_reg_count >= 3 ? 16 : 8)
+ | (saved_reg_list[0] << 12) /* str rX, [sp, #-8/-16]! */));
+ if (saved_reg_count >= 2) {
+ SLJIT_ASSERT(saved_reg_list[1] < 8);
+ FAIL_IF(push_inst16(compiler, 0x9001 | (saved_reg_list[1] << 8) /* str rX, [sp, #4] */));
+ }
+ if (saved_reg_count >= 3) {
+ SLJIT_ASSERT(saved_reg_list[2] < 8);
+ FAIL_IF(push_inst16(compiler, 0x9002 | (saved_reg_list[2] << 8) /* str rX, [sp, #8] */));
+ }
+ }
+
+#ifdef _WIN32
+ FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG1, SLJIT_R0)));
+ FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_R0, SLJIT_R1)));
+ FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_R1, TMP_REG1)));
+ FAIL_IF(sljit_emit_ijump(compiler, SLJIT_FAST_CALL, SLJIT_IMM,
+ ((op | 0x2) == SLJIT_DIV_UW ? SLJIT_FUNC_OFFSET(__rt_udiv) : SLJIT_FUNC_OFFSET(__rt_sdiv))));
+#elif defined(__GNUC__)
+ FAIL_IF(sljit_emit_ijump(compiler, SLJIT_FAST_CALL, SLJIT_IMM,
+ ((op | 0x2) == SLJIT_DIV_UW ? SLJIT_FUNC_OFFSET(__aeabi_uidivmod) : SLJIT_FUNC_OFFSET(__aeabi_idivmod))));
+#else
+#error "Software divmod functions are needed"
+#endif
+
+ if (saved_reg_count > 0) {
+ if (saved_reg_count >= 3) {
+ SLJIT_ASSERT(saved_reg_list[2] < 8);
+ FAIL_IF(push_inst16(compiler, 0x9802 | (saved_reg_list[2] << 8) /* ldr rX, [sp, #8] */));
+ }
+ if (saved_reg_count >= 2) {
+ SLJIT_ASSERT(saved_reg_list[1] < 8);
+ FAIL_IF(push_inst16(compiler, 0x9801 | (saved_reg_list[1] << 8) /* ldr rX, [sp, #4] */));
+ }
+ return push_inst32(compiler, 0xf85d0b00 | (saved_reg_count >= 3 ? 16 : 8)
+ | (saved_reg_list[0] << 12) /* ldr rX, [sp], #8/16 */);
+ }
+ return SLJIT_SUCCESS;
+#endif /* __ARM_FEATURE_IDIV || __ARM_ARCH_EXT_IDIV__ */
+ }
+
+ 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;
+ 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)) {
+ /* Since TMP_PC has index 15, IS_2_LO_REGS and IS_3_LO_REGS checks always fail. */
+ if (op <= SLJIT_MOV_P && (src & SLJIT_MEM))
+ return emit_op_mem(compiler, PRELOAD, TMP_PC, 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) {
+ switch (op) {
+ case SLJIT_MOV:
+ case SLJIT_MOV_U32:
+ case SLJIT_MOV_S32:
+ case SLJIT_MOV_P:
+ flags = WORD_SIZE;
+ break;
+ case SLJIT_MOV_U8:
+ flags = BYTE_SIZE;
+ if (src & SLJIT_IMM)
+ srcw = (sljit_u8)srcw;
+ break;
+ case SLJIT_MOV_S8:
+ flags = BYTE_SIZE | SIGNED;
+ if (src & SLJIT_IMM)
+ srcw = (sljit_s8)srcw;
+ break;
+ case SLJIT_MOV_U16:
+ flags = HALF_SIZE;
+ if (src & SLJIT_IMM)
+ srcw = (sljit_u16)srcw;
+ break;
+ case SLJIT_MOV_S16:
+ flags = HALF_SIZE | SIGNED;
+ if (src & SLJIT_IMM)
+ srcw = (sljit_s16)srcw;
+ break;
+ default:
+ SLJIT_UNREACHABLE();
+ flags = 0;
+ break;
+ }
+
+ if (src & SLJIT_IMM)
+ FAIL_IF(emit_op_imm(compiler, SLJIT_MOV | ARG2_IMM, dst_r, TMP_REG2, srcw));
+ else if (src & SLJIT_MEM) {
+ FAIL_IF(emit_op_mem(compiler, flags, dst_r, src, srcw, TMP_REG1));
+ } else {
+ if (dst_r != TMP_REG1)
+ return emit_op_imm(compiler, op, dst_r, TMP_REG2, src);
+ dst_r = src;
+ }
+
+ if (!(dst & SLJIT_MEM))
+ return SLJIT_SUCCESS;
+
+ return emit_op_mem(compiler, flags | STORE, dst_r, dst, dstw, TMP_REG2);
+ }
+
+ if (op == SLJIT_NEG) {
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+ return sljit_emit_op2(compiler, SLJIT_SUB | op_flags, dst, dstw, SLJIT_IMM, 0, src, srcw);
+ }
+
+ flags = HAS_FLAGS(op_flags) ? SET_FLAGS : 0;
+
+ if (src & SLJIT_MEM) {
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src, srcw, TMP_REG1));
+ src = TMP_REG1;
+ }
+
+ emit_op_imm(compiler, flags | op, dst_r, TMP_REG2, src);
+
+ if (SLJIT_UNLIKELY(dst & SLJIT_MEM))
+ return emit_op_mem(compiler, 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_reg, flags, src2_reg;
+
+ 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_reg = SLOW_IS_REG(dst) ? dst : TMP_REG1;
+ flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
+
+ if (src1 & SLJIT_IMM)
+ flags |= ARG1_IMM;
+ else if (src1 & SLJIT_MEM) {
+ emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src1, src1w, TMP_REG1);
+ src1w = TMP_REG1;
+ }
+ else
+ src1w = src1;
+
+ if (src2 & SLJIT_IMM)
+ flags |= ARG2_IMM;
+ else if (src2 & SLJIT_MEM) {
+ src2_reg = (!(flags & ARG1_IMM) && (src1w == TMP_REG1)) ? TMP_REG2 : TMP_REG1;
+ emit_op_mem(compiler, WORD_SIZE, src2_reg, src2, src2w, src2_reg);
+ src2w = src2_reg;
+ }
+ else
+ src2w = src2;
+
+ if (dst == SLJIT_UNUSED)
+ flags |= UNUSED_RETURN;
+
+ emit_op_imm(compiler, flags | GET_OPCODE(op), dst_reg, src1w, src2w);
+
+ if (!(dst & SLJIT_MEM))
+ return SLJIT_SUCCESS;
+ return emit_op_mem(compiler, WORD_SIZE | STORE, dst_reg, dst, dstw, TMP_REG2);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg)
+{
+ CHECK_REG_INDEX(check_sljit_get_register_index(reg));
+ return reg_map[reg];
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg)
+{
+ CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
+ return (freg_map[reg] << 1);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
+ void *instruction, sljit_s32 size)
+{
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
+
+ if (size == 2)
+ return push_inst16(compiler, *(sljit_u16*)instruction);
+ return push_inst32(compiler, *(sljit_ins*)instruction);
+}
+
+/* --------------------------------------------------------------------- */
+/* Floating point operators */
+/* --------------------------------------------------------------------- */
+
+#define FPU_LOAD (1 << 20)
+
+static sljit_s32 emit_fop_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
+{
+ sljit_uw imm;
+ sljit_sw inst = VSTR_F32 | (flags & (SLJIT_F32_OP | FPU_LOAD));
+
+ SLJIT_ASSERT(arg & SLJIT_MEM);
+
+ /* Fast loads and stores. */
+ if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
+ FAIL_IF(push_inst32(compiler, ADD_W | RD4(TMP_REG1) | RN4(arg & REG_MASK) | RM4(OFFS_REG(arg)) | ((argw & 0x3) << 6)));
+ arg = SLJIT_MEM | TMP_REG1;
+ argw = 0;
+ }
+
+ if ((arg & REG_MASK) && (argw & 0x3) == 0) {
+ if (!(argw & ~0x3fc))
+ return push_inst32(compiler, inst | 0x800000 | RN4(arg & REG_MASK) | DD4(reg) | (argw >> 2));
+ if (!(-argw & ~0x3fc))
+ return push_inst32(compiler, inst | RN4(arg & REG_MASK) | DD4(reg) | (-argw >> 2));
+ }
+
+ if (arg & REG_MASK) {
+ if (emit_set_delta(compiler, TMP_REG1, arg & REG_MASK, argw) != SLJIT_ERR_UNSUPPORTED) {
+ FAIL_IF(compiler->error);
+ return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG1) | DD4(reg));
+ }
+ imm = get_imm(argw & ~0x3fc);
+ if (imm != INVALID_IMM) {
+ FAIL_IF(push_inst32(compiler, ADD_WI | RD4(TMP_REG1) | RN4(arg & REG_MASK) | imm));
+ return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG1) | DD4(reg) | ((argw & 0x3fc) >> 2));
+ }
+ imm = get_imm(-argw & ~0x3fc);
+ if (imm != INVALID_IMM) {
+ argw = -argw;
+ FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(arg & REG_MASK) | imm));
+ return push_inst32(compiler, inst | RN4(TMP_REG1) | DD4(reg) | ((argw & 0x3fc) >> 2));
+ }
+ }
+
+ FAIL_IF(load_immediate(compiler, TMP_REG1, argw));
+ if (arg & REG_MASK)
+ FAIL_IF(push_inst16(compiler, ADD | SET_REGS44(TMP_REG1, (arg & REG_MASK))));
+ return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG1) | DD4(reg));
+}
+
+static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src, sljit_sw srcw)
+{
+ op ^= SLJIT_F32_OP;
+
+ if (src & SLJIT_MEM) {
+ FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG1, src, srcw));
+ src = TMP_FREG1;
+ }
+
+ FAIL_IF(push_inst32(compiler, VCVT_S32_F32 | (op & SLJIT_F32_OP) | DD4(TMP_FREG1) | DM4(src)));
+
+ if (FAST_IS_REG(dst))
+ return push_inst32(compiler, VMOV | (1 << 20) | RT4(dst) | DN4(TMP_FREG1));
+
+ /* Store the integer value from a VFP register. */
+ return emit_fop_mem(compiler, 0, TMP_FREG1, dst, dstw);
+}
+
+static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src, sljit_sw srcw)
+{
+ sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
+
+ op ^= SLJIT_F32_OP;
+
+ if (FAST_IS_REG(src))
+ FAIL_IF(push_inst32(compiler, VMOV | RT4(src) | DN4(TMP_FREG1)));
+ else if (src & SLJIT_MEM) {
+ /* Load the integer value into a VFP register. */
+ FAIL_IF(emit_fop_mem(compiler, FPU_LOAD, TMP_FREG1, src, srcw));
+ }
+ else {
+ FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
+ FAIL_IF(push_inst32(compiler, VMOV | RT4(TMP_REG1) | DN4(TMP_FREG1)));
+ }
+
+ FAIL_IF(push_inst32(compiler, VCVT_F32_S32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DM4(TMP_FREG1)));
+
+ if (dst & SLJIT_MEM)
+ return emit_fop_mem(compiler, (op & SLJIT_F32_OP), TMP_FREG1, dst, dstw);
+ return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 src1, sljit_sw src1w,
+ sljit_s32 src2, sljit_sw src2w)
+{
+ op ^= SLJIT_F32_OP;
+
+ if (src1 & SLJIT_MEM) {
+ emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG1, src1, src1w);
+ src1 = TMP_FREG1;
+ }
+
+ if (src2 & SLJIT_MEM) {
+ emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG2, src2, src2w);
+ src2 = TMP_FREG2;
+ }
+
+ FAIL_IF(push_inst32(compiler, VCMP_F32 | (op & SLJIT_F32_OP) | DD4(src1) | DM4(src2)));
+ return push_inst32(compiler, VMRS);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src, sljit_sw srcw)
+{
+ sljit_s32 dst_r;
+
+ CHECK_ERROR();
+
+ SLJIT_COMPILE_ASSERT((SLJIT_F32_OP == 0x100), float_transfer_bit_error);
+ SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
+
+ dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
+
+ if (GET_OPCODE(op) != SLJIT_CONV_F64_FROM_F32)
+ op ^= SLJIT_F32_OP;
+
+ if (src & SLJIT_MEM) {
+ emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, dst_r, src, srcw);
+ src = dst_r;
+ }
+
+ switch (GET_OPCODE(op)) {
+ case SLJIT_MOV_F64:
+ if (src != dst_r) {
+ if (dst_r != TMP_FREG1)
+ FAIL_IF(push_inst32(compiler, VMOV_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DM4(src)));
+ else
+ dst_r = src;
+ }
+ break;
+ case SLJIT_NEG_F64:
+ FAIL_IF(push_inst32(compiler, VNEG_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DM4(src)));
+ break;
+ case SLJIT_ABS_F64:
+ FAIL_IF(push_inst32(compiler, VABS_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DM4(src)));
+ break;
+ case SLJIT_CONV_F64_FROM_F32:
+ FAIL_IF(push_inst32(compiler, VCVT_F64_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DM4(src)));
+ op ^= SLJIT_F32_OP;
+ break;
+ }
+
+ if (dst & SLJIT_MEM)
+ return emit_fop_mem(compiler, (op & SLJIT_F32_OP), dst_r, dst, dstw);
+ return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 src1, sljit_sw src1w,
+ sljit_s32 src2, sljit_sw src2w)
+{
+ sljit_s32 dst_r;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+ ADJUST_LOCAL_OFFSET(src1, src1w);
+ ADJUST_LOCAL_OFFSET(src2, src2w);
+
+ op ^= SLJIT_F32_OP;
+
+ dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
+ if (src1 & SLJIT_MEM) {
+ emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG1, src1, src1w);
+ src1 = TMP_FREG1;
+ }
+ if (src2 & SLJIT_MEM) {
+ emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG2, src2, src2w);
+ src2 = TMP_FREG2;
+ }
+
+ switch (GET_OPCODE(op)) {
+ case SLJIT_ADD_F64:
+ FAIL_IF(push_inst32(compiler, VADD_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DN4(src1) | DM4(src2)));
+ break;
+ case SLJIT_SUB_F64:
+ FAIL_IF(push_inst32(compiler, VSUB_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DN4(src1) | DM4(src2)));
+ break;
+ case SLJIT_MUL_F64:
+ FAIL_IF(push_inst32(compiler, VMUL_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DN4(src1) | DM4(src2)));
+ break;
+ case SLJIT_DIV_F64:
+ FAIL_IF(push_inst32(compiler, VDIV_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DN4(src1) | DM4(src2)));
+ break;
+ }
+
+ if (!(dst & SLJIT_MEM))
+ return SLJIT_SUCCESS;
+ return emit_fop_mem(compiler, (op & SLJIT_F32_OP), TMP_FREG1, dst, dstw);
+}
+
+#undef FPU_LOAD
+
+/* --------------------------------------------------------------------- */
+/* Other instructions */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
+{
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+
+ SLJIT_ASSERT(reg_map[TMP_REG2] == 14);
+
+ if (FAST_IS_REG(dst))
+ return push_inst16(compiler, MOV | SET_REGS44(dst, TMP_REG2));
+
+ /* Memory. */
+ return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG2, dst, dstw, TMP_REG1);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src, sljit_sw srcw)
+{
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_fast_return(compiler, src, srcw));
+ ADJUST_LOCAL_OFFSET(src, srcw);
+
+ SLJIT_ASSERT(reg_map[TMP_REG2] == 14);
+
+ if (FAST_IS_REG(src))
+ FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG2, src)));
+ else
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG2, src, srcw, TMP_REG2));
+
+ return push_inst16(compiler, BX | RN3(TMP_REG2));
+}
+
+/* --------------------------------------------------------------------- */
+/* Conditional instructions */
+/* --------------------------------------------------------------------- */
+
+static sljit_uw get_cc(sljit_s32 type)
+{
+ switch (type) {
+ case SLJIT_EQUAL:
+ case SLJIT_MUL_NOT_OVERFLOW:
+ case SLJIT_EQUAL_F64:
+ return 0x0;
+
+ case SLJIT_NOT_EQUAL:
+ case SLJIT_MUL_OVERFLOW:
+ case SLJIT_NOT_EQUAL_F64:
+ return 0x1;
+
+ case SLJIT_LESS:
+ case SLJIT_LESS_F64:
+ return 0x3;
+
+ case SLJIT_GREATER_EQUAL:
+ case SLJIT_GREATER_EQUAL_F64:
+ return 0x2;
+
+ case SLJIT_GREATER:
+ case SLJIT_GREATER_F64:
+ return 0x8;
+
+ case SLJIT_LESS_EQUAL:
+ case SLJIT_LESS_EQUAL_F64:
+ return 0x9;
+
+ case SLJIT_SIG_LESS:
+ return 0xb;
+
+ case SLJIT_SIG_GREATER_EQUAL:
+ return 0xa;
+
+ case SLJIT_SIG_GREATER:
+ return 0xc;
+
+ case SLJIT_SIG_LESS_EQUAL:
+ return 0xd;
+
+ case SLJIT_OVERFLOW:
+ case SLJIT_UNORDERED_F64:
+ return 0x6;
+
+ case SLJIT_NOT_OVERFLOW:
+ case SLJIT_ORDERED_F64:
+ return 0x7;
+
+ default: /* SLJIT_JUMP */
+ 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;
+ sljit_ins cc;
+
+ 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;
+
+ PTR_FAIL_IF(emit_imm32_const(compiler, TMP_REG1, 0));
+ if (type < SLJIT_JUMP) {
+ jump->flags |= IS_COND;
+ cc = get_cc(type);
+ jump->flags |= cc << 8;
+ PTR_FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
+ }
+
+ jump->addr = compiler->size;
+ if (type <= SLJIT_JUMP)
+ PTR_FAIL_IF(push_inst16(compiler, BX | RN3(TMP_REG1)));
+ else {
+ jump->flags |= IS_BL;
+ PTR_FAIL_IF(push_inst16(compiler, BLX | RN3(TMP_REG1)));
+ }
+
+ return jump;
+}
+
+#ifdef __SOFTFP__
+
+static sljit_s32 softfloat_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src)
+{
+ sljit_s32 stack_offset = 0;
+ sljit_s32 arg_count = 0;
+ sljit_s32 word_arg_offset = 0;
+ sljit_s32 float_arg_count = 0;
+ sljit_s32 types = 0;
+ sljit_s32 src_offset = 4 * sizeof(sljit_sw);
+ sljit_u8 offsets[4];
+
+ if (src && FAST_IS_REG(*src))
+ src_offset = reg_map[*src] * sizeof(sljit_sw);
+
+ arg_types >>= SLJIT_DEF_SHIFT;
+
+ while (arg_types) {
+ types = (types << SLJIT_DEF_SHIFT) | (arg_types & SLJIT_DEF_MASK);
+
+ switch (arg_types & SLJIT_DEF_MASK) {
+ case SLJIT_ARG_TYPE_F32:
+ offsets[arg_count] = (sljit_u8)stack_offset;
+ stack_offset += sizeof(sljit_f32);
+ arg_count++;
+ float_arg_count++;
+ break;
+ case SLJIT_ARG_TYPE_F64:
+ if (stack_offset & 0x7)
+ stack_offset += sizeof(sljit_sw);
+ offsets[arg_count] = (sljit_u8)stack_offset;
+ stack_offset += sizeof(sljit_f64);
+ arg_count++;
+ float_arg_count++;
+ break;
+ default:
+ offsets[arg_count] = (sljit_u8)stack_offset;
+ stack_offset += sizeof(sljit_sw);
+ arg_count++;
+ word_arg_offset += sizeof(sljit_sw);
+ break;
+ }
+
+ arg_types >>= SLJIT_DEF_SHIFT;
+ }
+
+ if (stack_offset > 16)
+ FAIL_IF(push_inst16(compiler, SUB_SP | (((stack_offset - 16) + 0x7) & ~0x7) >> 2));
+
+ SLJIT_ASSERT(reg_map[TMP_REG1] == 12);
+
+ /* Process arguments in reversed direction. */
+ while (types) {
+ switch (types & SLJIT_DEF_MASK) {
+ case SLJIT_ARG_TYPE_F32:
+ arg_count--;
+ float_arg_count--;
+ stack_offset = offsets[arg_count];
+
+ if (stack_offset < 16) {
+ if (src_offset == stack_offset) {
+ FAIL_IF(push_inst16(compiler, MOV | (src_offset << 1) | 4 | (1 << 7)));
+ *src = TMP_REG1;
+ }
+ FAIL_IF(push_inst32(compiler, VMOV | 0x100000 | (float_arg_count << 16) | (stack_offset << 10)));
+ } else
+ FAIL_IF(push_inst32(compiler, VSTR_F32 | 0x800000 | RN4(SLJIT_SP) | (float_arg_count << 12) | ((stack_offset - 16) >> 2)));
+ break;
+ case SLJIT_ARG_TYPE_F64:
+ arg_count--;
+ float_arg_count--;
+ stack_offset = offsets[arg_count];
+
+ SLJIT_ASSERT((stack_offset & 0x7) == 0);
+
+ if (stack_offset < 16) {
+ if (src_offset == stack_offset || src_offset == stack_offset + sizeof(sljit_sw)) {
+ FAIL_IF(push_inst16(compiler, MOV | (src_offset << 1) | 4 | (1 << 7)));
+ *src = TMP_REG1;
+ }
+ FAIL_IF(push_inst32(compiler, VMOV2 | 0x100000 | (stack_offset << 10) | ((stack_offset + sizeof(sljit_sw)) << 14) | float_arg_count));
+ } else
+ FAIL_IF(push_inst32(compiler, VSTR_F32 | 0x800100 | RN4(SLJIT_SP) | (float_arg_count << 12) | ((stack_offset - 16) >> 2)));
+ break;
+ default:
+ arg_count--;
+ word_arg_offset -= sizeof(sljit_sw);
+ stack_offset = offsets[arg_count];
+
+ SLJIT_ASSERT(stack_offset >= word_arg_offset);
+
+ if (stack_offset != word_arg_offset) {
+ if (stack_offset < 16) {
+ if (src_offset == stack_offset) {
+ FAIL_IF(push_inst16(compiler, MOV | (src_offset << 1) | 4 | (1 << 7)));
+ *src = TMP_REG1;
+ }
+ else if (src_offset == word_arg_offset) {
+ *src = 1 + (stack_offset >> 2);
+ src_offset = stack_offset;
+ }
+ FAIL_IF(push_inst16(compiler, MOV | (stack_offset >> 2) | (word_arg_offset << 1)));
+ } else
+ FAIL_IF(push_inst16(compiler, STR_SP | (word_arg_offset << 6) | ((stack_offset - 16) >> 2)));
+ }
+ break;
+ }
+
+ types >>= SLJIT_DEF_SHIFT;
+ }
+
+ return SLJIT_SUCCESS;
+}
+
+static sljit_s32 softfloat_post_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types)
+{
+ sljit_s32 stack_size = 0;
+
+ if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F32)
+ FAIL_IF(push_inst32(compiler, VMOV | (0 << 16) | (0 << 12)));
+ if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F64)
+ FAIL_IF(push_inst32(compiler, VMOV2 | (1 << 16) | (0 << 12) | 0));
+
+ arg_types >>= SLJIT_DEF_SHIFT;
+
+ while (arg_types) {
+ switch (arg_types & SLJIT_DEF_MASK) {
+ case SLJIT_ARG_TYPE_F32:
+ stack_size += sizeof(sljit_f32);
+ break;
+ case SLJIT_ARG_TYPE_F64:
+ if (stack_size & 0x7)
+ stack_size += sizeof(sljit_sw);
+ stack_size += sizeof(sljit_f64);
+ break;
+ default:
+ stack_size += sizeof(sljit_sw);
+ break;
+ }
+
+ arg_types >>= SLJIT_DEF_SHIFT;
+ }
+
+ if (stack_size <= 16)
+ return SLJIT_SUCCESS;
+
+ return push_inst16(compiler, ADD_SP | ((((stack_size - 16) + 0x7) & ~0x7) >> 2));
+}
+
+#else
+
+static sljit_s32 hardfloat_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types)
+{
+ sljit_u32 remap = 0;
+ sljit_u32 offset = 0;
+ sljit_u32 new_offset, mask;
+
+ /* Remove return value. */
+ arg_types >>= SLJIT_DEF_SHIFT;
+
+ while (arg_types) {
+ if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F32) {
+ new_offset = 0;
+ mask = 1;
+
+ while (remap & mask) {
+ new_offset++;
+ mask <<= 1;
+ }
+ remap |= mask;
+
+ if (offset != new_offset)
+ FAIL_IF(push_inst32(compiler, VMOV_F32 | DD4((new_offset >> 1) + 1)
+ | ((new_offset & 0x1) ? 0x400000 : 0) | DM4((offset >> 1) + 1)));
+
+ offset += 2;
+ }
+ else if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F64) {
+ new_offset = 0;
+ mask = 3;
+
+ while (remap & mask) {
+ new_offset += 2;
+ mask <<= 2;
+ }
+ remap |= mask;
+
+ if (offset != new_offset)
+ FAIL_IF(push_inst32(compiler, VMOV_F32 | SLJIT_F32_OP | DD4((new_offset >> 1) + 1) | DM4((offset >> 1) + 1)));
+
+ offset += 2;
+ }
+ arg_types >>= SLJIT_DEF_SHIFT;
+ }
+
+ return SLJIT_SUCCESS;
+}
+
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compiler *compiler, sljit_s32 type,
+ sljit_s32 arg_types)
+{
+#ifdef __SOFTFP__
+ struct sljit_jump *jump;
+#endif
+
+ CHECK_ERROR_PTR();
+ CHECK_PTR(check_sljit_emit_call(compiler, type, arg_types));
+
+#ifdef __SOFTFP__
+ PTR_FAIL_IF(softfloat_call_with_args(compiler, arg_types, NULL));
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+
+ jump = sljit_emit_jump(compiler, type);
+ PTR_FAIL_IF(jump == NULL);
+
+ PTR_FAIL_IF(softfloat_post_call_with_args(compiler, arg_types));
+ return jump;
+#else
+ PTR_FAIL_IF(hardfloat_call_with_args(compiler, arg_types));
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+
+ return sljit_emit_jump(compiler, type);
+#endif
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
+{
+ struct sljit_jump *jump;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
+ ADJUST_LOCAL_OFFSET(src, srcw);
+
+ SLJIT_ASSERT(reg_map[TMP_REG1] != 14);
+
+ if (!(src & SLJIT_IMM)) {
+ if (FAST_IS_REG(src)) {
+ SLJIT_ASSERT(reg_map[src] != 14);
+ return push_inst16(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RN3(src));
+ }
+
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE, type <= SLJIT_JUMP ? TMP_PC : TMP_REG1, src, srcw, TMP_REG1));
+ if (type >= SLJIT_FAST_CALL)
+ return push_inst16(compiler, BLX | RN3(TMP_REG1));
+ }
+
+ /* These jumps are converted to jump/call instructions when possible. */
+ jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+ FAIL_IF(!jump);
+ set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_BL : 0));
+ jump->u.target = srcw;
+
+ FAIL_IF(emit_imm32_const(compiler, TMP_REG1, 0));
+ jump->addr = compiler->size;
+ return push_inst16(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RN3(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));
+
+#ifdef __SOFTFP__
+ if (src & SLJIT_MEM) {
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src, srcw, TMP_REG1));
+ src = TMP_REG1;
+ }
+
+ FAIL_IF(softfloat_call_with_args(compiler, arg_types, &src));
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+
+ FAIL_IF(sljit_emit_ijump(compiler, type, src, srcw));
+
+ return softfloat_post_call_with_args(compiler, arg_types);
+#else /* !__SOFTFP__ */
+ FAIL_IF(hardfloat_call_with_args(compiler, arg_types));
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
+ || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
+ compiler->skip_checks = 1;
+#endif
+
+ return sljit_emit_ijump(compiler, type, src, srcw);
+#endif /* __SOFTFP__ */
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
+ sljit_s32 dst, sljit_sw dstw,
+ sljit_s32 type)
+{
+ sljit_s32 dst_r, flags = GET_ALL_FLAGS(op);
+ sljit_ins cc;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
+ ADJUST_LOCAL_OFFSET(dst, dstw);
+
+ op = GET_OPCODE(op);
+ cc = get_cc(type & 0xff);
+ dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
+
+ if (op < SLJIT_ADD) {
+ FAIL_IF(push_inst16(compiler, IT | (cc << 4) | (((cc & 0x1) ^ 0x1) << 3) | 0x4));
+ if (reg_map[dst_r] > 7) {
+ FAIL_IF(push_inst32(compiler, MOV_WI | RD4(dst_r) | 1));
+ FAIL_IF(push_inst32(compiler, MOV_WI | RD4(dst_r) | 0));
+ } else {
+ /* The movsi (immediate) instruction does not set flags in IT block. */
+ FAIL_IF(push_inst16(compiler, MOVSI | RDN3(dst_r) | 1));
+ FAIL_IF(push_inst16(compiler, MOVSI | RDN3(dst_r) | 0));
+ }
+ if (!(dst & SLJIT_MEM))
+ return SLJIT_SUCCESS;
+ return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG1, dst, dstw, TMP_REG2);
+ }
+
+ if (dst & SLJIT_MEM)
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, dst, dstw, TMP_REG2));
+
+ if (op == SLJIT_AND) {
+ FAIL_IF(push_inst16(compiler, IT | (cc << 4) | (((cc & 0x1) ^ 0x1) << 3) | 0x4));
+ FAIL_IF(push_inst32(compiler, ANDI | RN4(dst_r) | RD4(dst_r) | 1));
+ FAIL_IF(push_inst32(compiler, ANDI | RN4(dst_r) | RD4(dst_r) | 0));
+ }
+ else {
+ FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
+ FAIL_IF(push_inst32(compiler, ((op == SLJIT_OR) ? ORRI : EORI) | RN4(dst_r) | RD4(dst_r) | 1));
+ }
+
+ if (dst & SLJIT_MEM)
+ FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG1, dst, dstw, TMP_REG2));
+
+ if (!(flags & SLJIT_SET_Z))
+ return SLJIT_SUCCESS;
+
+ /* The condition must always be set, even if the ORR/EORI is not executed above. */
+ return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(TMP_REG1) | RM4(dst_r));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_cmov(struct sljit_compiler *compiler, sljit_s32 type,
+ sljit_s32 dst_reg,
+ sljit_s32 src, sljit_sw srcw)
+{
+ sljit_uw cc, tmp;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_cmov(compiler, type, dst_reg, src, srcw));
+
+ dst_reg &= ~SLJIT_I32_OP;
+
+ cc = get_cc(type & 0xff);
+
+ if (!(src & SLJIT_IMM)) {
+ FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
+ return push_inst16(compiler, MOV | SET_REGS44(dst_reg, src));
+ }
+
+ tmp = (sljit_uw) srcw;
+
+ if (tmp < 0x10000) {
+ /* set low 16 bits, set hi 16 bits to 0. */
+ FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
+ return push_inst32(compiler, MOVW | RD4(dst_reg)
+ | COPY_BITS(tmp, 12, 16, 4) | COPY_BITS(tmp, 11, 26, 1) | COPY_BITS(tmp, 8, 12, 3) | (tmp & 0xff));
+ }
+
+ tmp = get_imm(srcw);
+ if (tmp != INVALID_IMM) {
+ FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
+ return push_inst32(compiler, MOV_WI | RD4(dst_reg) | tmp);
+ }
+
+ tmp = get_imm(~srcw);
+ if (tmp != INVALID_IMM) {
+ FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
+ return push_inst32(compiler, MVN_WI | RD4(dst_reg) | tmp);
+ }
+
+ FAIL_IF(push_inst16(compiler, IT | (cc << 4) | ((cc & 0x1) << 3) | 0x4));
+
+ tmp = (sljit_uw) srcw;
+ FAIL_IF(push_inst32(compiler, MOVW | RD4(dst_reg)
+ | COPY_BITS(tmp, 12, 16, 4) | COPY_BITS(tmp, 11, 26, 1) | COPY_BITS(tmp, 8, 12, 3) | (tmp & 0xff)));
+ return push_inst32(compiler, MOVT | RD4(dst_reg)
+ | COPY_BITS(tmp, 12 + 16, 16, 4) | COPY_BITS(tmp, 11 + 16, 26, 1) | COPY_BITS(tmp, 8 + 16, 12, 3) | ((tmp & 0xff0000) >> 16));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_mem(struct sljit_compiler *compiler, sljit_s32 type,
+ sljit_s32 reg,
+ sljit_s32 mem, sljit_sw memw)
+{
+ sljit_s32 flags;
+ sljit_ins inst;
+
+ CHECK_ERROR();
+ CHECK(check_sljit_emit_mem(compiler, type, reg, mem, memw));
+
+ if ((mem & OFFS_REG_MASK) || (memw > 255 && memw < -255))
+ return SLJIT_ERR_UNSUPPORTED;
+
+ if (type & SLJIT_MEM_SUPP)
+ return SLJIT_SUCCESS;
+
+ switch (type & 0xff) {
+ case SLJIT_MOV:
+ case SLJIT_MOV_U32:
+ case SLJIT_MOV_S32:
+ case SLJIT_MOV_P:
+ flags = WORD_SIZE;
+ break;
+ case SLJIT_MOV_U8:
+ flags = BYTE_SIZE;
+ break;
+ case SLJIT_MOV_S8:
+ flags = BYTE_SIZE | SIGNED;
+ break;
+ case SLJIT_MOV_U16:
+ flags = HALF_SIZE;
+ break;
+ case SLJIT_MOV_S16:
+ flags = HALF_SIZE | SIGNED;
+ break;
+ default:
+ SLJIT_UNREACHABLE();
+ flags = WORD_SIZE;
+ break;
+ }
+
+ if (type & SLJIT_MEM_STORE)
+ flags |= STORE;
+
+ inst = sljit_mem32[flags] | 0x900;
+
+ if (type & SLJIT_MEM_PRE)
+ inst |= 0x400;
+
+ if (memw >= 0)
+ inst |= 0x200;
+ else
+ memw = -memw;
+
+ return push_inst32(compiler, inst | RT4(reg) | RN4(mem & REG_MASK) | memw);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
+{
+ struct sljit_const *const_;
+ sljit_s32 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_imm32_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_u16 *inst = (sljit_u16*)addr;
+ modify_imm32_const(inst, new_target);
+ inst = (sljit_u16 *)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_u16 *inst = (sljit_u16*)addr;
+ modify_imm32_const(inst, new_constant);
+ inst = (sljit_u16 *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
+ SLJIT_CACHE_FLUSH(inst, inst + 4);
+}
projects / ossec-hids.git / blobdiff