src/sljit/sljitNativePPC_common.c

/*
 *    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 "PowerPC" SLJIT_CPUINFO;
}

/* Length of an instruction word.
   Both for ppc-32 and ppc-64. */
typedef sljit_u32 sljit_ins;

#if ((defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) && (defined _AIX)) \
	|| (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
#define SLJIT_PPC_STACK_FRAME_V2 1
#endif

#ifdef _AIX
#include <sys/cache.h>
#endif

#if (defined _CALL_ELF && _CALL_ELF == 2)
#define SLJIT_PASS_ENTRY_ADDR_TO_CALL 1
#endif

#if (defined SLJIT_CACHE_FLUSH_OWN_IMPL && SLJIT_CACHE_FLUSH_OWN_IMPL)

static void ppc_cache_flush(sljit_ins *from, sljit_ins *to)
{
#ifdef _AIX
	_sync_cache_range((caddr_t)from, (int)((size_t)to - (size_t)from));
#elif defined(__GNUC__) || (defined(__IBM_GCC_ASM) && __IBM_GCC_ASM)
#	if defined(_ARCH_PWR) || defined(_ARCH_PWR2)
	/* Cache flush for POWER architecture. */
	while (from < to) {
		__asm__ volatile (
			"clf 0, %0\n"
			"dcs\n"
			: : "r"(from)
		);
		from++;
	}
	__asm__ volatile ( "ics" );
#	elif defined(_ARCH_COM) && !defined(_ARCH_PPC)
#	error "Cache flush is not implemented for PowerPC/POWER common mode."
#	else
	/* Cache flush for PowerPC architecture. */
	while (from < to) {
		__asm__ volatile (
			"dcbf 0, %0\n"
			"sync\n"
			"icbi 0, %0\n"
			: : "r"(from)
		);
		from++;
	}
	__asm__ volatile ( "isync" );
#	endif
#	ifdef __xlc__
#	warning "This file may fail to compile if -qfuncsect is used"
#	endif
#elif defined(__xlc__)
#error "Please enable GCC syntax for inline assembly statements with -qasm=gcc"
#else
#error "This platform requires a cache flush implementation."
#endif /* _AIX */
}

#endif /* (defined SLJIT_CACHE_FLUSH_OWN_IMPL && SLJIT_CACHE_FLUSH_OWN_IMPL) */

#define TMP_REG1	(SLJIT_NUMBER_OF_REGISTERS + 2)
#define TMP_REG2	(SLJIT_NUMBER_OF_REGISTERS + 3)
#define TMP_ZERO	(SLJIT_NUMBER_OF_REGISTERS + 4)

#if (defined SLJIT_PASS_ENTRY_ADDR_TO_CALL && SLJIT_PASS_ENTRY_ADDR_TO_CALL)
#define TMP_CALL_REG	(SLJIT_NUMBER_OF_REGISTERS + 5)
#else
#define TMP_CALL_REG	TMP_REG2
#endif

#define TMP_FREG1	(SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
#define TMP_FREG2	(SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)

static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 7] = {
	0, 3, 4, 5, 6, 7, 8, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 1, 9, 10, 31, 12
};

static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = {
	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 0, 13
};

/* --------------------------------------------------------------------- */
/*  Instrucion forms                                                     */
/* --------------------------------------------------------------------- */
#define D(d)		((sljit_ins)reg_map[d] << 21)
#define S(s)		((sljit_ins)reg_map[s] << 21)
#define A(a)		((sljit_ins)reg_map[a] << 16)
#define B(b)		((sljit_ins)reg_map[b] << 11)
#define C(c)		((sljit_ins)reg_map[c] << 6)
#define FD(fd)		((sljit_ins)freg_map[fd] << 21)
#define FS(fs)		((sljit_ins)freg_map[fs] << 21)
#define FA(fa)		((sljit_ins)freg_map[fa] << 16)
#define FB(fb)		((sljit_ins)freg_map[fb] << 11)
#define FC(fc)		((sljit_ins)freg_map[fc] << 6)
#define IMM(imm)	((sljit_ins)(imm) & 0xffff)
#define CRD(d)		((sljit_ins)(d) << 21)

/* Instruction bit sections.
   OE and Rc flag (see ALT_SET_FLAGS). */
#define OE(flags)	((flags) & ALT_SET_FLAGS)
/* Rc flag (see ALT_SET_FLAGS). */
#define RC(flags)	(((flags) & ALT_SET_FLAGS) >> 10)
#define HI(opcode)	((sljit_ins)(opcode) << 26)
#define LO(opcode)	((sljit_ins)(opcode) << 1)

#define ADD		(HI(31) | LO(266))
#define ADDC		(HI(31) | LO(10))
#define ADDE		(HI(31) | LO(138))
#define ADDI		(HI(14))
#define ADDIC		(HI(13))
#define ADDIS		(HI(15))
#define ADDME		(HI(31) | LO(234))
#define AND		(HI(31) | LO(28))
#define ANDI		(HI(28))
#define ANDIS		(HI(29))
#define Bx		(HI(18))
#define BCx		(HI(16))
#define BCCTR		(HI(19) | LO(528) | (3 << 11))
#define BLR		(HI(19) | LO(16) | (0x14 << 21))
#define CNTLZD		(HI(31) | LO(58))
#define CNTLZW		(HI(31) | LO(26))
#define CMP		(HI(31) | LO(0))
#define CMPI		(HI(11))
#define CMPL		(HI(31) | LO(32))
#define CMPLI		(HI(10))
#define CROR		(HI(19) | LO(449))
#define DCBT		(HI(31) | LO(278))
#define DIVD		(HI(31) | LO(489))
#define DIVDU		(HI(31) | LO(457))
#define DIVW		(HI(31) | LO(491))
#define DIVWU		(HI(31) | LO(459))
#define EXTSB		(HI(31) | LO(954))
#define EXTSH		(HI(31) | LO(922))
#define EXTSW		(HI(31) | LO(986))
#define FABS		(HI(63) | LO(264))
#define FADD		(HI(63) | LO(21))
#define FADDS		(HI(59) | LO(21))
#define FCFID		(HI(63) | LO(846))
#define FCMPU		(HI(63) | LO(0))
#define FCTIDZ		(HI(63) | LO(815))
#define FCTIWZ		(HI(63) | LO(15))
#define FDIV		(HI(63) | LO(18))
#define FDIVS		(HI(59) | LO(18))
#define FMR		(HI(63) | LO(72))
#define FMUL		(HI(63) | LO(25))
#define FMULS		(HI(59) | LO(25))
#define FNEG		(HI(63) | LO(40))
#define FRSP		(HI(63) | LO(12))
#define FSUB		(HI(63) | LO(20))
#define FSUBS		(HI(59) | LO(20))
#define LD		(HI(58) | 0)
#define LFD		(HI(50))
#define LWZ		(HI(32))
#define MFCR		(HI(31) | LO(19))
#define MFLR		(HI(31) | LO(339) | 0x80000)
#define MFXER		(HI(31) | LO(339) | 0x10000)
#define MTCTR		(HI(31) | LO(467) | 0x90000)
#define MTLR		(HI(31) | LO(467) | 0x80000)
#define MTXER		(HI(31) | LO(467) | 0x10000)
#define MULHD		(HI(31) | LO(73))
#define MULHDU		(HI(31) | LO(9))
#define MULHW		(HI(31) | LO(75))
#define MULHWU		(HI(31) | LO(11))
#define MULLD		(HI(31) | LO(233))
#define MULLI		(HI(7))
#define MULLW		(HI(31) | LO(235))
#define NEG		(HI(31) | LO(104))
#define NOP		(HI(24))
#define NOR		(HI(31) | LO(124))
#define OR		(HI(31) | LO(444))
#define ORI		(HI(24))
#define ORIS		(HI(25))
#define RLDICL		(HI(30))
#define RLWINM		(HI(21))
#define SLD		(HI(31) | LO(27))
#define SLW		(HI(31) | LO(24))
#define SRAD		(HI(31) | LO(794))
#define SRADI		(HI(31) | LO(413 << 1))
#define SRAW		(HI(31) | LO(792))
#define SRAWI		(HI(31) | LO(824))
#define SRD		(HI(31) | LO(539))
#define SRW		(HI(31) | LO(536))
#define STD		(HI(62) | 0)
#define STDU		(HI(62) | 1)
#define STDUX		(HI(31) | LO(181))
#define STFD		(HI(54))
#define STFIWX		(HI(31) | LO(983))
#define STW		(HI(36))
#define STWU		(HI(37))
#define STWUX		(HI(31) | LO(183))
#define SUBF		(HI(31) | LO(40))
#define SUBFC		(HI(31) | LO(8))
#define SUBFE		(HI(31) | LO(136))
#define SUBFIC		(HI(8))
#define XOR		(HI(31) | LO(316))
#define XORI		(HI(26))
#define XORIS		(HI(27))

#define SIMM_MAX	(0x7fff)
#define SIMM_MIN	(-0x8000)
#define UIMM_MAX	(0xffff)

#define RLDI(dst, src, sh, mb, type) \
	(HI(30) | S(src) | A(dst) | ((sljit_ins)(type) << 2) | (((sljit_ins)(sh) & 0x1f) << 11) \
	| (((sljit_ins)(sh) & 0x20) >> 4) | (((sljit_ins)(mb) & 0x1f) << 6) | ((sljit_ins)(mb) & 0x20))

#if (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
SLJIT_API_FUNC_ATTRIBUTE void sljit_set_function_context(void** func_ptr, struct sljit_function_context* context, sljit_uw addr, void* func)
{
	sljit_uw* ptrs;

	if (func_ptr)
		*func_ptr = (void*)context;

	ptrs = (sljit_uw*)func;
	context->addr = addr ? addr : ptrs[0];
	context->r2 = ptrs[1];
	context->r11 = ptrs[2];
}
#endif

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 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;
	sljit_uw extra_jump_flags;

#if (defined SLJIT_PASS_ENTRY_ADDR_TO_CALL && SLJIT_PASS_ENTRY_ADDR_TO_CALL) && (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
	if (jump->flags & (SLJIT_REWRITABLE_JUMP | IS_CALL))
		return 0;
#else
	if (jump->flags & SLJIT_REWRITABLE_JUMP)
		return 0;
#endif

	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;
	}

#if (defined SLJIT_PASS_ENTRY_ADDR_TO_CALL && SLJIT_PASS_ENTRY_ADDR_TO_CALL) && (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	if (jump->flags & IS_CALL)
		goto keep_address;
#endif

	diff = ((sljit_sw)target_addr - (sljit_sw)(code_ptr) - executable_offset) & ~0x3l;

	extra_jump_flags = 0;
	if (jump->flags & IS_COND) {
		if (diff <= 0x7fff && diff >= -0x8000) {
			jump->flags |= PATCH_B;
			return 1;
		}
		if (target_addr <= 0xffff) {
			jump->flags |= PATCH_B | PATCH_ABS_B;
			return 1;
		}
		extra_jump_flags = REMOVE_COND;

		diff -= SSIZE_OF(ins);
	}

	if (diff <= 0x01ffffff && diff >= -0x02000000) {
		jump->flags |= PATCH_B | extra_jump_flags;
		return 1;
	}

	if (target_addr <= 0x03ffffff) {
		jump->flags |= PATCH_B | PATCH_ABS_B | extra_jump_flags;
		return 1;
	}

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
#if (defined SLJIT_PASS_ENTRY_ADDR_TO_CALL && SLJIT_PASS_ENTRY_ADDR_TO_CALL)
keep_address:
#endif
	if (target_addr <= 0x7fffffff) {
		jump->flags |= PATCH_ABS32;
		return 1;
	}

	if (target_addr <= 0x7fffffffffffl) {
		jump->flags |= PATCH_ABS48;
		return 1;
	}
#endif

	return 0;
}

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)

static SLJIT_INLINE sljit_sw put_label_get_length(struct sljit_put_label *put_label, sljit_uw max_label)
{
	if (max_label < 0x100000000l) {
		put_label->flags = 0;
		return 1;
	}

	if (max_label < 0x1000000000000l) {
		put_label->flags = 1;
		return 3;
	}

	put_label->flags = 2;
	return 4;
}

static SLJIT_INLINE void put_label_set(struct sljit_put_label *put_label)
{
	sljit_uw addr = put_label->label->addr;
	sljit_ins *inst = (sljit_ins *)put_label->addr;
	sljit_u32 reg = *inst;

	if (put_label->flags == 0) {
		SLJIT_ASSERT(addr < 0x100000000l);
		inst[0] = ORIS | S(TMP_ZERO) | A(reg) | IMM(addr >> 16);
	}
	else {
		if (put_label->flags == 1) {
			SLJIT_ASSERT(addr < 0x1000000000000l);
			inst[0] = ORI | S(TMP_ZERO) | A(reg) | IMM(addr >> 32);
		}
		else {
			inst[0] = ORIS | S(TMP_ZERO) | A(reg) | IMM(addr >> 48);
			inst[1] = ORI | S(reg) | A(reg) | IMM((addr >> 32) & 0xffff);
			inst ++;
		}

		inst[1] = RLDI(reg, reg, 32, 31, 1);
		inst[2] = ORIS | S(reg) | A(reg) | IMM((addr >> 16) & 0xffff);
		inst += 2;
	}

	inst[1] = ORI | S(reg) | A(reg) | IMM(addr & 0xffff);
}

#endif

SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
{
	struct sljit_memory_fragment *buf;
	sljit_ins *code;
	sljit_ins *code_ptr;
	sljit_ins *buf_ptr;
	sljit_ins *buf_end;
	sljit_uw word_count;
	sljit_uw next_addr;
	sljit_sw executable_offset;
	sljit_uw addr;

	struct sljit_label *label;
	struct sljit_jump *jump;
	struct sljit_const *const_;
	struct sljit_put_label *put_label;

	CHECK_ERROR_PTR();
	CHECK_PTR(check_sljit_generate_code(compiler));
	reverse_buf(compiler);

#if (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	compiler->size += (compiler->size & 0x1) + (sizeof(struct sljit_function_context) / sizeof(sljit_ins));
#else
	compiler->size += (sizeof(struct sljit_function_context) / sizeof(sljit_ins));
#endif
#endif
	code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins), compiler->exec_allocator_data);
	PTR_FAIL_WITH_EXEC_IF(code);
	buf = compiler->buf;

	code_ptr = code;
	word_count = 0;
	next_addr = 0;
	executable_offset = SLJIT_EXEC_OFFSET(code);

	label = compiler->labels;
	jump = compiler->jumps;
	const_ = compiler->consts;
	put_label = compiler->put_labels;

	do {
		buf_ptr = (sljit_ins*)buf->memory;
		buf_end = buf_ptr + (buf->used_size >> 2);
		do {
			*code_ptr = *buf_ptr++;
			if (next_addr == word_count) {
				SLJIT_ASSERT(!label || label->size >= word_count);
				SLJIT_ASSERT(!jump || jump->addr >= word_count);
				SLJIT_ASSERT(!const_ || const_->addr >= word_count);
				SLJIT_ASSERT(!put_label || put_label->addr >= word_count);

				/* These structures are ordered by their address. */
				if (label && label->size == word_count) {
					/* Just recording the address. */
					label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
					label->size = (sljit_uw)(code_ptr - code);
					label = label->next;
				}
				if (jump && jump->addr == word_count) {
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
					jump->addr = (sljit_uw)(code_ptr - 3);
#else
					jump->addr = (sljit_uw)(code_ptr - 6);
#endif
					if (detect_jump_type(jump, code_ptr, code, executable_offset)) {
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
						code_ptr[-3] = code_ptr[0];
						code_ptr -= 3;
#else
						if (jump->flags & PATCH_ABS32) {
							code_ptr -= 3;
							code_ptr[-1] = code_ptr[2];
							code_ptr[0] = code_ptr[3];
						}
						else if (jump->flags & PATCH_ABS48) {
							code_ptr--;
							code_ptr[-1] = code_ptr[0];
							code_ptr[0] = code_ptr[1];
							/* rldicr rX,rX,32,31 -> rX,rX,16,47 */
							SLJIT_ASSERT((code_ptr[-3] & 0xfc00ffff) == 0x780007c6);
							code_ptr[-3] ^= 0x8422;
							/* oris -> ori */
							code_ptr[-2] ^= 0x4000000;
						}
						else {
							code_ptr[-6] = code_ptr[0];
							code_ptr -= 6;
						}
#endif
						if (jump->flags & REMOVE_COND) {
							code_ptr[0] = BCx | (2 << 2) | ((code_ptr[0] ^ (8 << 21)) & 0x03ff0001);
							code_ptr++;
							jump->addr += sizeof(sljit_ins);
							code_ptr[0] = Bx;
							jump->flags -= IS_COND;
						}
					}
					jump = jump->next;
				}
				if (const_ && const_->addr == word_count) {
					const_->addr = (sljit_uw)code_ptr;
					const_ = const_->next;
				}
				if (put_label && put_label->addr == word_count) {
					SLJIT_ASSERT(put_label->label);
					put_label->addr = (sljit_uw)code_ptr;
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
					code_ptr += put_label_get_length(put_label, (sljit_uw)(SLJIT_ADD_EXEC_OFFSET(code, executable_offset) + put_label->label->size));
					word_count += 4;
#endif
					put_label = put_label->next;
				}
				next_addr = compute_next_addr(label, jump, const_, put_label);
			}
			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 = (sljit_uw)(code_ptr - code);
		label = label->next;
	}

	SLJIT_ASSERT(!label);
	SLJIT_ASSERT(!jump);
	SLJIT_ASSERT(!const_);
	SLJIT_ASSERT(!put_label);

#if (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
	SLJIT_ASSERT(code_ptr - code <= (sljit_sw)(compiler->size - (sizeof(struct sljit_function_context) / sizeof(sljit_ins))));
#else
	SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size);
#endif

	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) {
				if (jump->flags & IS_COND) {
					if (!(jump->flags & PATCH_ABS_B)) {
						addr -= (sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset);
						SLJIT_ASSERT((sljit_sw)addr <= 0x7fff && (sljit_sw)addr >= -0x8000);
						*buf_ptr = BCx | ((sljit_ins)addr & 0xfffc) | ((*buf_ptr) & 0x03ff0001);
					}
					else {
						SLJIT_ASSERT(addr <= 0xffff);
						*buf_ptr = BCx | ((sljit_ins)addr & 0xfffc) | 0x2 | ((*buf_ptr) & 0x03ff0001);
					}
				}
				else {
					if (!(jump->flags & PATCH_ABS_B)) {
						addr -= (sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset);
						SLJIT_ASSERT((sljit_sw)addr <= 0x01ffffff && (sljit_sw)addr >= -0x02000000);
						*buf_ptr = Bx | ((sljit_ins)addr & 0x03fffffc) | ((*buf_ptr) & 0x1);
					}
					else {
						SLJIT_ASSERT(addr <= 0x03ffffff);
						*buf_ptr = Bx | ((sljit_ins)addr & 0x03fffffc) | 0x2 | ((*buf_ptr) & 0x1);
					}
				}
				break;
			}

			/* Set the fields of immediate loads. */
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
			SLJIT_ASSERT(((buf_ptr[0] | buf_ptr[1]) & 0xffff) == 0);
			buf_ptr[0] |= (sljit_ins)(addr >> 16) & 0xffff;
			buf_ptr[1] |= (sljit_ins)addr & 0xffff;
#else
			if (jump->flags & PATCH_ABS32) {
				SLJIT_ASSERT(addr <= 0x7fffffff);
				SLJIT_ASSERT(((buf_ptr[0] | buf_ptr[1]) & 0xffff) == 0);
				buf_ptr[0] |= (sljit_ins)(addr >> 16) & 0xffff;
				buf_ptr[1] |= (sljit_ins)addr & 0xffff;
				break;
			}

			if (jump->flags & PATCH_ABS48) {
				SLJIT_ASSERT(addr <= 0x7fffffffffff);
				SLJIT_ASSERT(((buf_ptr[0] | buf_ptr[1] | buf_ptr[3]) & 0xffff) == 0);
				buf_ptr[0] |= (sljit_ins)(addr >> 32) & 0xffff;
				buf_ptr[1] |= (sljit_ins)(addr >> 16) & 0xffff;
				buf_ptr[3] |= (sljit_ins)addr & 0xffff;
				break;
			}

			SLJIT_ASSERT(((buf_ptr[0] | buf_ptr[1] | buf_ptr[3] | buf_ptr[4]) & 0xffff) == 0);
			buf_ptr[0] |= (sljit_ins)(addr >> 48) & 0xffff;
			buf_ptr[1] |= (sljit_ins)(addr >> 32) & 0xffff;
			buf_ptr[3] |= (sljit_ins)(addr >> 16) & 0xffff;
			buf_ptr[4] |= (sljit_ins)addr & 0xffff;
#endif
		} while (0);
		jump = jump->next;
	}

	put_label = compiler->put_labels;
	while (put_label) {
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
		addr = put_label->label->addr;
		buf_ptr = (sljit_ins *)put_label->addr;

		SLJIT_ASSERT((buf_ptr[0] & 0xfc1f0000) == ADDIS && (buf_ptr[1] & 0xfc000000) == ORI);
		buf_ptr[0] |= (addr >> 16) & 0xffff;
		buf_ptr[1] |= addr & 0xffff;
#else
		put_label_set(put_label);
#endif
		put_label = put_label->next;
	}

	compiler->error = SLJIT_ERR_COMPILED;
	compiler->executable_offset = executable_offset;
	compiler->executable_size = (sljit_uw)(code_ptr - code) * sizeof(sljit_ins);

	code = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);

#if (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	if (((sljit_sw)code_ptr) & 0x4)
		code_ptr++;
#endif
	sljit_set_function_context(NULL, (struct sljit_function_context*)code_ptr, (sljit_uw)code, (void*)sljit_generate_code);
#endif

	code_ptr = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);

	SLJIT_CACHE_FLUSH(code, code_ptr);
	SLJIT_UPDATE_WX_FLAGS(code, code_ptr, 1);

#if (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
	return code_ptr;
#else
	return code;
#endif
}

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

	/* A saved register is set to a zero value. */
	case SLJIT_HAS_ZERO_REGISTER:
	case SLJIT_HAS_CLZ:
	case SLJIT_HAS_PREFETCH:
		return 1;

	default:
		return 0;
	}
}

/* --------------------------------------------------------------------- */
/*  Entry, exit                                                          */
/* --------------------------------------------------------------------- */

/* inp_flags: */

/* Creates an index in data_transfer_insts array. */
#define LOAD_DATA	0x01
#define INDEXED		0x02
#define SIGNED_DATA	0x04

#define WORD_DATA	0x00
#define BYTE_DATA	0x08
#define HALF_DATA	0x10
#define INT_DATA	0x18
/* Separates integer and floating point registers */
#define GPR_REG		0x1f
#define DOUBLE_DATA	0x20

#define MEM_MASK	0x7f

/* Other inp_flags. */

/* Integer opertion and set flags -> requires exts on 64 bit systems. */
#define ALT_SIGN_EXT	0x000100
/* This flag affects the RC() and OERC() macros. */
#define ALT_SET_FLAGS	0x000400
#define ALT_FORM1	0x001000
#define ALT_FORM2	0x002000
#define ALT_FORM3	0x004000
#define ALT_FORM4	0x008000
#define ALT_FORM5	0x010000

/* Source and destination is register. */
#define REG_DEST	0x000001
#define REG1_SOURCE	0x000002
#define REG2_SOURCE	0x000004
/*
ALT_SIGN_EXT		0x000100
ALT_SET_FLAGS		0x000200
ALT_FORM1		0x001000
...
ALT_FORM5		0x010000 */

#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
#include "sljitNativePPC_32.c"
#else
#include "sljitNativePPC_64.c"
#endif

#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
#define STACK_STORE	STW
#define STACK_LOAD	LWZ
#else
#define STACK_STORE	STD
#define STACK_LOAD	LD
#endif

#if (defined SLJIT_PPC_STACK_FRAME_V2 && SLJIT_PPC_STACK_FRAME_V2)
#define LR_SAVE_OFFSET		2 * SSIZE_OF(sw)
#else
#define LR_SAVE_OFFSET		SSIZE_OF(sw)
#endif

#define STACK_MAX_DISTANCE	(0x8000 - SSIZE_OF(sw) - LR_SAVE_OFFSET)

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 i, tmp, base, offset;
	sljit_s32 word_arg_count = 0;
	sljit_s32 saved_arg_count = 0;
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	sljit_s32 arg_count = 0;
#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);

	local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1)
		+ GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, sizeof(sljit_f64));
	local_size = (local_size + SLJIT_LOCALS_OFFSET + 15) & ~0xf;
	compiler->local_size = local_size;

	FAIL_IF(push_inst(compiler, MFLR | D(0)));

	base = SLJIT_SP;
	offset = local_size;

	if (local_size <= STACK_MAX_DISTANCE) {
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
		FAIL_IF(push_inst(compiler, STWU | S(SLJIT_SP) | A(SLJIT_SP) | IMM(-local_size)));
#else
		FAIL_IF(push_inst(compiler, STDU | S(SLJIT_SP) | A(SLJIT_SP) | IMM(-local_size)));
#endif
	} else {
		base = TMP_REG1;
		FAIL_IF(push_inst(compiler, OR | S(SLJIT_SP) | A(TMP_REG1) | B(SLJIT_SP)));
		FAIL_IF(load_immediate(compiler, TMP_REG2, -local_size));
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
		FAIL_IF(push_inst(compiler, STWUX | S(SLJIT_SP) | A(SLJIT_SP) | B(TMP_REG2)));
#else
		FAIL_IF(push_inst(compiler, STDUX | S(SLJIT_SP) | A(SLJIT_SP) | B(TMP_REG2)));
#endif
		local_size = 0;
		offset = 0;
	}

	tmp = SLJIT_FS0 - fsaveds;
	for (i = SLJIT_FS0; i > tmp; i--) {
		offset -= SSIZE_OF(f64);
		FAIL_IF(push_inst(compiler, STFD | FS(i) | A(base) | IMM(offset)));
	}

	for (i = fscratches; i >= SLJIT_FIRST_SAVED_FLOAT_REG; i--) {
		offset -= SSIZE_OF(f64);
		FAIL_IF(push_inst(compiler, STFD | FS(i) | A(base) | IMM(offset)));
	}

	offset -= SSIZE_OF(sw);
	FAIL_IF(push_inst(compiler, STACK_STORE | S(TMP_ZERO) | A(base) | IMM(offset)));

	tmp = SLJIT_S0 - saveds;
	for (i = SLJIT_S0; i > tmp; i--) {
		offset -= SSIZE_OF(sw);
		FAIL_IF(push_inst(compiler, STACK_STORE | S(i) | A(base) | IMM(offset)));
	}

	for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
		offset -= SSIZE_OF(sw);
		FAIL_IF(push_inst(compiler, STACK_STORE | S(i) | A(base) | IMM(offset)));
	}

	FAIL_IF(push_inst(compiler, STACK_STORE | S(0) | A(base) | IMM(local_size + LR_SAVE_OFFSET)));
	FAIL_IF(push_inst(compiler, ADDI | D(TMP_ZERO) | A(0) | 0));

	arg_types >>= SLJIT_ARG_SHIFT;

	while (arg_types > 0) {
		if ((arg_types & SLJIT_ARG_MASK) < SLJIT_ARG_TYPE_F64) {
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
			do {
				if (!(arg_types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
					tmp = SLJIT_S0 - saved_arg_count;
					saved_arg_count++;
				} else if (arg_count != word_arg_count)
					tmp = SLJIT_R0 + word_arg_count;
				else
					break;

				FAIL_IF(push_inst(compiler, OR | S(SLJIT_R0 + arg_count) | A(tmp) | B(SLJIT_R0 + arg_count)));
			} while (0);
#else
			if (!(arg_types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
				FAIL_IF(push_inst(compiler, OR | S(SLJIT_R0 + word_arg_count) | A(SLJIT_S0 - saved_arg_count) | B(SLJIT_R0 + word_arg_count)));
				saved_arg_count++;
			}
#endif
			word_arg_count++;
		}

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
		arg_count++;
#endif
		arg_types >>= SLJIT_ARG_SHIFT;
	}

	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)
{
	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);

	local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1)
		+ GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, sizeof(sljit_f64));
	compiler->local_size = (local_size + SLJIT_LOCALS_OFFSET + 15) & ~0xf;
	return SLJIT_SUCCESS;
}


static sljit_s32 emit_stack_frame_release(struct sljit_compiler *compiler)
{
	sljit_s32 i, tmp, base, offset;
	sljit_s32 local_size = compiler->local_size;

	base = SLJIT_SP;
	if (local_size > STACK_MAX_DISTANCE) {
		base = TMP_REG1;
		if (local_size > 2 * STACK_MAX_DISTANCE + LR_SAVE_OFFSET) {
			FAIL_IF(push_inst(compiler, STACK_LOAD | D(base) | A(SLJIT_SP) | IMM(0)));
			local_size = 0;
		} else {
			FAIL_IF(push_inst(compiler, ADDI | D(TMP_REG1) | A(SLJIT_SP) | IMM(local_size - STACK_MAX_DISTANCE)));
			local_size = STACK_MAX_DISTANCE;
		}
	}

	offset = local_size;
	FAIL_IF(push_inst(compiler, STACK_LOAD | S(0) | A(base) | IMM(offset + LR_SAVE_OFFSET)));

	tmp = SLJIT_FS0 - compiler->fsaveds;
	for (i = SLJIT_FS0; i > tmp; i--) {
		offset -= SSIZE_OF(f64);
		FAIL_IF(push_inst(compiler, LFD | FS(i) | A(base) | IMM(offset)));
	}

	for (i = compiler->fscratches; i >= SLJIT_FIRST_SAVED_FLOAT_REG; i--) {
		offset -= SSIZE_OF(f64);
		FAIL_IF(push_inst(compiler, LFD | FS(i) | A(base) | IMM(offset)));
	}

	offset -= SSIZE_OF(sw);
	FAIL_IF(push_inst(compiler, STACK_LOAD | S(TMP_ZERO) | A(base) | IMM(offset)));

	tmp = SLJIT_S0 - compiler->saveds;
	for (i = SLJIT_S0; i > tmp; i--) {
		offset -= SSIZE_OF(sw);
		FAIL_IF(push_inst(compiler, STACK_LOAD | S(i) | A(base) | IMM(offset)));
	}

	for (i = compiler->scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
		offset -= SSIZE_OF(sw);
		FAIL_IF(push_inst(compiler, STACK_LOAD | S(i) | A(base) | IMM(offset)));
	}

	push_inst(compiler, MTLR | S(0));

	if (local_size > 0)
		return push_inst(compiler, ADDI | D(SLJIT_SP) | A(base) | IMM(local_size));

	SLJIT_ASSERT(base == TMP_REG1);
	return push_inst(compiler, OR | S(base) | A(SLJIT_SP) | B(base));
}

SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return_void(struct sljit_compiler *compiler)
{
	CHECK_ERROR();
	CHECK(check_sljit_emit_return_void(compiler));

	FAIL_IF(emit_stack_frame_release(compiler));
	return push_inst(compiler, BLR);
}

#undef STACK_STORE
#undef STACK_LOAD

/* --------------------------------------------------------------------- */
/*  Operators                                                            */
/* --------------------------------------------------------------------- */

/* s/l - store/load (1 bit)
   i/x - immediate/indexed form
   u/s - signed/unsigned (1 bit)
   w/b/h/i - word/byte/half/int allowed (2 bit)

   Some opcodes are repeated (e.g. store signed / unsigned byte is the same instruction). */

/* 64 bit only: [reg+imm] must be aligned to 4 bytes. */
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
#define INT_ALIGNED	0x10000
#endif

#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
#define ARCH_32_64(a, b)	a
#define INST_CODE_AND_DST(inst, flags, reg) \
	((sljit_ins)(inst) | (sljit_ins)(((flags) & MEM_MASK) <= GPR_REG ? D(reg) : FD(reg)))
#else
#define ARCH_32_64(a, b)	b
#define INST_CODE_AND_DST(inst, flags, reg) \
	(((sljit_ins)(inst) & ~(sljit_ins)INT_ALIGNED) | (sljit_ins)(((flags) & MEM_MASK) <= GPR_REG ? D(reg) : FD(reg)))
#endif

static const sljit_ins data_transfer_insts[64 + 16] = {

/* -------- Integer -------- */

/* Word. */

/* w u i s */ ARCH_32_64(HI(36) /* stw */, HI(62) | INT_ALIGNED | 0x0 /* std */),
/* w u i l */ ARCH_32_64(HI(32) /* lwz */, HI(58) | INT_ALIGNED | 0x0 /* ld */),
/* w u x s */ ARCH_32_64(HI(31) | LO(151) /* stwx */, HI(31) | LO(149) /* stdx */),
/* w u x l */ ARCH_32_64(HI(31) | LO(23) /* lwzx */, HI(31) | LO(21) /* ldx */),

/* w s i s */ ARCH_32_64(HI(36) /* stw */, HI(62) | INT_ALIGNED | 0x0 /* std */),
/* w s i l */ ARCH_32_64(HI(32) /* lwz */, HI(58) | INT_ALIGNED | 0x0 /* ld */),
/* w s x s */ ARCH_32_64(HI(31) | LO(151) /* stwx */, HI(31) | LO(149) /* stdx */),
/* w s x l */ ARCH_32_64(HI(31) | LO(23) /* lwzx */, HI(31) | LO(21) /* ldx */),

/* Byte. */

/* b u i s */ HI(38) /* stb */,
/* b u i l */ HI(34) /* lbz */,
/* b u x s */ HI(31) | LO(215) /* stbx */,
/* b u x l */ HI(31) | LO(87) /* lbzx */,

/* b s i s */ HI(38) /* stb */,
/* b s i l */ HI(34) /* lbz */ /* EXTS_REQ */,
/* b s x s */ HI(31) | LO(215) /* stbx */,
/* b s x l */ HI(31) | LO(87) /* lbzx */ /* EXTS_REQ */,

/* Half. */

/* h u i s */ HI(44) /* sth */,
/* h u i l */ HI(40) /* lhz */,
/* h u x s */ HI(31) | LO(407) /* sthx */,
/* h u x l */ HI(31) | LO(279) /* lhzx */,

/* h s i s */ HI(44) /* sth */,
/* h s i l */ HI(42) /* lha */,
/* h s x s */ HI(31) | LO(407) /* sthx */,
/* h s x l */ HI(31) | LO(343) /* lhax */,

/* Int. */

/* i u i s */ HI(36) /* stw */,
/* i u i l */ HI(32) /* lwz */,
/* i u x s */ HI(31) | LO(151) /* stwx */,
/* i u x l */ HI(31) | LO(23) /* lwzx */,

/* i s i s */ HI(36) /* stw */,
/* i s i l */ ARCH_32_64(HI(32) /* lwz */, HI(58) | INT_ALIGNED | 0x2 /* lwa */),
/* i s x s */ HI(31) | LO(151) /* stwx */,
/* i s x l */ ARCH_32_64(HI(31) | LO(23) /* lwzx */, HI(31) | LO(341) /* lwax */),

/* -------- Floating point -------- */

/* d   i s */ HI(54) /* stfd */,
/* d   i l */ HI(50) /* lfd */,
/* d   x s */ HI(31) | LO(727) /* stfdx */,
/* d   x l */ HI(31) | LO(599) /* lfdx */,

/* s   i s */ HI(52) /* stfs */,
/* s   i l */ HI(48) /* lfs */,
/* s   x s */ HI(31) | LO(663) /* stfsx */,
/* s   x l */ HI(31) | LO(535) /* lfsx */,
};

static const sljit_ins updated_data_transfer_insts[64] = {

/* -------- Integer -------- */

/* Word. */

/* w u i s */ ARCH_32_64(HI(37) /* stwu */, HI(62) | INT_ALIGNED | 0x1 /* stdu */),
/* w u i l */ ARCH_32_64(HI(33) /* lwzu */, HI(58) | INT_ALIGNED | 0x1 /* ldu */),
/* w u x s */ ARCH_32_64(HI(31) | LO(183) /* stwux */, HI(31) | LO(181) /* stdux */),
/* w u x l */ ARCH_32_64(HI(31) | LO(55) /* lwzux */, HI(31) | LO(53) /* ldux */),

/* w s i s */ ARCH_32_64(HI(37) /* stwu */, HI(62) | INT_ALIGNED | 0x1 /* stdu */),
/* w s i l */ ARCH_32_64(HI(33) /* lwzu */, HI(58) | INT_ALIGNED | 0x1 /* ldu */),
/* w s x s */ ARCH_32_64(HI(31) | LO(183) /* stwux */, HI(31) | LO(181) /* stdux */),
/* w s x l */ ARCH_32_64(HI(31) | LO(55) /* lwzux */, HI(31) | LO(53) /* ldux */),

/* Byte. */

/* b u i s */ HI(39) /* stbu */,
/* b u i l */ HI(35) /* lbzu */,
/* b u x s */ HI(31) | LO(247) /* stbux */,
/* b u x l */ HI(31) | LO(119) /* lbzux */,

/* b s i s */ HI(39) /* stbu */,
/* b s i l */ 0 /* no such instruction */,
/* b s x s */ HI(31) | LO(247) /* stbux */,
/* b s x l */ 0 /* no such instruction */,

/* Half. */

/* h u i s */ HI(45) /* sthu */,
/* h u i l */ HI(41) /* lhzu */,
/* h u x s */ HI(31) | LO(439) /* sthux */,
/* h u x l */ HI(31) | LO(311) /* lhzux */,

/* h s i s */ HI(45) /* sthu */,
/* h s i l */ HI(43) /* lhau */,
/* h s x s */ HI(31) | LO(439) /* sthux */,
/* h s x l */ HI(31) | LO(375) /* lhaux */,

/* Int. */

/* i u i s */ HI(37) /* stwu */,
/* i u i l */ HI(33) /* lwzu */,
/* i u x s */ HI(31) | LO(183) /* stwux */,
/* i u x l */ HI(31) | LO(55) /* lwzux */,

/* i s i s */ HI(37) /* stwu */,
/* i s i l */ ARCH_32_64(HI(33) /* lwzu */, 0 /* no such instruction */),
/* i s x s */ HI(31) | LO(183) /* stwux */,
/* i s x l */ ARCH_32_64(HI(31) | LO(55) /* lwzux */, HI(31) | LO(373) /* lwaux */),

/* -------- Floating point -------- */

/* d   i s */ HI(55) /* stfdu */,
/* d   i l */ HI(51) /* lfdu */,
/* d   x s */ HI(31) | LO(759) /* stfdux */,
/* d   x l */ HI(31) | LO(631) /* lfdux */,

/* s   i s */ HI(53) /* stfsu */,
/* s   i l */ HI(49) /* lfsu */,
/* s   x s */ HI(31) | LO(695) /* stfsux */,
/* s   x l */ HI(31) | LO(567) /* lfsux */,
};

#undef ARCH_32_64

/* Simple cases, (no caching is required). */
static sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 inp_flags, sljit_s32 reg,
	sljit_s32 arg, sljit_sw argw, sljit_s32 tmp_reg)
{
	sljit_ins inst;
	sljit_s32 offs_reg;
	sljit_sw high_short;

	/* Should work when (arg & REG_MASK) == 0. */
	SLJIT_ASSERT(A(0) == 0);
	SLJIT_ASSERT(arg & SLJIT_MEM);

	if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
		argw &= 0x3;
		offs_reg = OFFS_REG(arg);

		if (argw != 0) {
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
			FAIL_IF(push_inst(compiler, RLWINM | S(OFFS_REG(arg)) | A(tmp_reg) | ((sljit_ins)argw << 11) | ((31 - (sljit_ins)argw) << 1)));
#else
			FAIL_IF(push_inst(compiler, RLDI(tmp_reg, OFFS_REG(arg), argw, 63 - argw, 1)));
#endif
			offs_reg = tmp_reg;
		}

		inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
		SLJIT_ASSERT(!(inst & INT_ALIGNED));
#endif

		return push_inst(compiler, INST_CODE_AND_DST(inst, inp_flags, reg) | A(arg & REG_MASK) | B(offs_reg));
	}

	inst = data_transfer_insts[inp_flags & MEM_MASK];
	arg &= REG_MASK;

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	if ((inst & INT_ALIGNED) && (argw & 0x3) != 0) {
		FAIL_IF(load_immediate(compiler, tmp_reg, argw));

		inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
		return push_inst(compiler, INST_CODE_AND_DST(inst, inp_flags, reg) | A(arg) | B(tmp_reg));
	}
#endif

	if (argw <= SIMM_MAX && argw >= SIMM_MIN)
		return push_inst(compiler, INST_CODE_AND_DST(inst, inp_flags, reg) | A(arg) | IMM(argw));

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	if (argw <= 0x7fff7fffl && argw >= -0x80000000l) {
#endif

		high_short = (sljit_s32)(argw + ((argw & 0x8000) << 1)) & ~0xffff;

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
		SLJIT_ASSERT(high_short && high_short <= 0x7fffffffl && high_short >= -0x80000000l);
#else
		SLJIT_ASSERT(high_short);
#endif

		FAIL_IF(push_inst(compiler, ADDIS | D(tmp_reg) | A(arg) | IMM(high_short >> 16)));
		return push_inst(compiler, INST_CODE_AND_DST(inst, inp_flags, reg) | A(tmp_reg) | IMM(argw));

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	}

	/* The rest is PPC-64 only. */

	FAIL_IF(load_immediate(compiler, tmp_reg, argw));

	inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
	return push_inst(compiler, INST_CODE_AND_DST(inst, inp_flags, reg) | A(arg) | B(tmp_reg));
#endif
}

static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 input_flags,
	sljit_s32 dst, sljit_sw dstw,
	sljit_s32 src1, sljit_sw src1w,
	sljit_s32 src2, sljit_sw src2w)
{
	/* arg1 goes to TMP_REG1 or src reg
	   arg2 goes to TMP_REG2, imm or src reg
	   result goes to TMP_REG2, so put result can use TMP_REG1. */
	sljit_s32 dst_r = TMP_REG2;
	sljit_s32 src1_r;
	sljit_s32 src2_r;
	sljit_s32 sugg_src2_r = TMP_REG2;
	sljit_s32 flags = input_flags & (ALT_FORM1 | ALT_FORM2 | ALT_FORM3 | ALT_FORM4 | ALT_FORM5 | ALT_SIGN_EXT | ALT_SET_FLAGS);

	/* Destination check. */
	if (FAST_IS_REG(dst)) {
		dst_r = dst;
		/* The REG_DEST is only used by SLJIT_MOV operations, although
		 * it is set for op2 operations with unset destination. */
		flags |= REG_DEST;

		if (op >= SLJIT_MOV && op <= SLJIT_MOV_P)
			sugg_src2_r = dst_r;
	}

	/* Source 1. */
	if (FAST_IS_REG(src1)) {
		src1_r = src1;
		flags |= REG1_SOURCE;
	}
	else if (src1 & SLJIT_IMM) {
		src1_r = TMP_ZERO;
		if (src1w != 0) {
			FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
			src1_r = TMP_REG1;
		}
	}
	else {
		FAIL_IF(emit_op_mem(compiler, input_flags | LOAD_DATA, TMP_REG1, src1, src1w, TMP_REG1));
		src1_r = TMP_REG1;
	}

	/* Source 2. */
	if (FAST_IS_REG(src2)) {
		src2_r = src2;
		flags |= REG2_SOURCE;

		if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOV_P)
			dst_r = src2_r;
	}
	else if (src2 & SLJIT_IMM) {
		src2_r = TMP_ZERO;
		if (src2w != 0) {
			FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w));
			src2_r = sugg_src2_r;
		}
	}
	else {
		FAIL_IF(emit_op_mem(compiler, input_flags | LOAD_DATA, sugg_src2_r, src2, src2w, TMP_REG2));
		src2_r = sugg_src2_r;
	}

	FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));

	if (!(dst & SLJIT_MEM))
		return SLJIT_SUCCESS;

	return emit_op_mem(compiler, input_flags, dst_r, dst, dstw, TMP_REG1);
}

SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
{
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	sljit_s32 int_op = op & SLJIT_32;
#endif

	CHECK_ERROR();
	CHECK(check_sljit_emit_op0(compiler, op));

	op = GET_OPCODE(op);
	switch (op) {
	case SLJIT_BREAKPOINT:
	case SLJIT_NOP:
		return push_inst(compiler, NOP);
	case SLJIT_LMUL_UW:
	case SLJIT_LMUL_SW:
		FAIL_IF(push_inst(compiler, OR | S(SLJIT_R0) | A(TMP_REG1) | B(SLJIT_R0)));
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
		FAIL_IF(push_inst(compiler, MULLD | D(SLJIT_R0) | A(TMP_REG1) | B(SLJIT_R1)));
		return push_inst(compiler, (op == SLJIT_LMUL_UW ? MULHDU : MULHD) | D(SLJIT_R1) | A(TMP_REG1) | B(SLJIT_R1));
#else
		FAIL_IF(push_inst(compiler, MULLW | D(SLJIT_R0) | A(TMP_REG1) | B(SLJIT_R1)));
		return push_inst(compiler, (op == SLJIT_LMUL_UW ? MULHWU : MULHW) | D(SLJIT_R1) | A(TMP_REG1) | B(SLJIT_R1));
#endif
	case SLJIT_DIVMOD_UW:
	case SLJIT_DIVMOD_SW:
		FAIL_IF(push_inst(compiler, OR | S(SLJIT_R0) | A(TMP_REG1) | B(SLJIT_R0)));
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
		FAIL_IF(push_inst(compiler, (int_op ? (op == SLJIT_DIVMOD_UW ? DIVWU : DIVW) : (op == SLJIT_DIVMOD_UW ? DIVDU : DIVD)) | D(SLJIT_R0) | A(SLJIT_R0) | B(SLJIT_R1)));
		FAIL_IF(push_inst(compiler, (int_op ? MULLW : MULLD) | D(SLJIT_R1) | A(SLJIT_R0) | B(SLJIT_R1)));
#else
		FAIL_IF(push_inst(compiler, (op == SLJIT_DIVMOD_UW ? DIVWU : DIVW) | D(SLJIT_R0) | A(SLJIT_R0) | B(SLJIT_R1)));
		FAIL_IF(push_inst(compiler, MULLW | D(SLJIT_R1) | A(SLJIT_R0) | B(SLJIT_R1)));
#endif
		return push_inst(compiler, SUBF | D(SLJIT_R1) | A(SLJIT_R1) | B(TMP_REG1));
	case SLJIT_DIV_UW:
	case SLJIT_DIV_SW:
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
		return push_inst(compiler, (int_op ? (op == SLJIT_DIV_UW ? DIVWU : DIVW) : (op == SLJIT_DIV_UW ? DIVDU : DIVD)) | D(SLJIT_R0) | A(SLJIT_R0) | B(SLJIT_R1));
#else
		return push_inst(compiler, (op == SLJIT_DIV_UW ? DIVWU : DIVW) | D(SLJIT_R0) | A(SLJIT_R0) | B(SLJIT_R1));
#endif
	case SLJIT_ENDBR:
	case SLJIT_SKIP_FRAMES_BEFORE_RETURN:
		return SLJIT_SUCCESS;
	}

	return SLJIT_SUCCESS;
}

static sljit_s32 emit_prefetch(struct sljit_compiler *compiler,
        sljit_s32 src, sljit_sw srcw)
{
	if (!(src & OFFS_REG_MASK)) {
		if (srcw == 0 && (src & REG_MASK))
			return push_inst(compiler, DCBT | A(0) | B(src & REG_MASK));

		FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
		/* Works with SLJIT_MEM0() case as well. */
		return push_inst(compiler, DCBT | A(src & REG_MASK) | B(TMP_REG1));
	}

	srcw &= 0x3;

	if (srcw == 0)
		return push_inst(compiler, DCBT | A(src & REG_MASK) | B(OFFS_REG(src)));

#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
	FAIL_IF(push_inst(compiler, RLWINM | S(OFFS_REG(src)) | A(TMP_REG1) | ((sljit_ins)srcw << 11) | ((31 - (sljit_ins)srcw) << 1)));
#else
	FAIL_IF(push_inst(compiler, RLDI(TMP_REG1, OFFS_REG(src), srcw, 63 - srcw, 1)));
#endif
	return push_inst(compiler, DCBT | A(src & REG_MASK) | B(TMP_REG1));
}

#define EMIT_MOV(type, type_flags, type_cast) \
	emit_op(compiler, (src & SLJIT_IMM) ? SLJIT_MOV : type, flags | (type_flags), dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? type_cast srcw : srcw)

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 flags = HAS_FLAGS(op) ? ALT_SET_FLAGS : 0;
	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);

	op = GET_OPCODE(op);

	if (GET_FLAG_TYPE(op_flags) == SLJIT_OVERFLOW)
		FAIL_IF(push_inst(compiler, MTXER | S(TMP_ZERO)));

	if (op < SLJIT_NOT && FAST_IS_REG(src) && src == dst) {
		if (!TYPE_CAST_NEEDED(op))
			return SLJIT_SUCCESS;
	}

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	if (op_flags & SLJIT_32) {
		if (op < SLJIT_NOT) {
			if (src & SLJIT_MEM) {
				if (op == SLJIT_MOV_S32)
					op = SLJIT_MOV_U32;
			}
			else if (src & SLJIT_IMM) {
				if (op == SLJIT_MOV_U32)
					op = SLJIT_MOV_S32;
			}
		}
		else {
			/* Most operations expect sign extended arguments. */
			flags |= INT_DATA | SIGNED_DATA;
			if (HAS_FLAGS(op_flags))
				flags |= ALT_SIGN_EXT;
		}
	}
#endif

	switch (op) {
	case SLJIT_MOV:
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
	case SLJIT_MOV_U32:
	case SLJIT_MOV_S32:
	case SLJIT_MOV32:
#endif
	case SLJIT_MOV_P:
		return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	case SLJIT_MOV_U32:
		return EMIT_MOV(SLJIT_MOV_U32, INT_DATA, (sljit_u32));

	case SLJIT_MOV_S32:
	case SLJIT_MOV32:
		return EMIT_MOV(SLJIT_MOV_S32, INT_DATA | SIGNED_DATA, (sljit_s32));
#endif

	case SLJIT_MOV_U8:
		return EMIT_MOV(SLJIT_MOV_U8, BYTE_DATA, (sljit_u8));

	case SLJIT_MOV_S8:
		return EMIT_MOV(SLJIT_MOV_S8, BYTE_DATA | SIGNED_DATA, (sljit_s8));

	case SLJIT_MOV_U16:
		return EMIT_MOV(SLJIT_MOV_U16, HALF_DATA, (sljit_u16));

	case SLJIT_MOV_S16:
		return EMIT_MOV(SLJIT_MOV_S16, HALF_DATA | SIGNED_DATA, (sljit_s16));

	case SLJIT_NOT:
		return emit_op(compiler, SLJIT_NOT, flags, dst, dstw, TMP_REG1, 0, src, srcw);

	case SLJIT_CLZ:
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
		return emit_op(compiler, SLJIT_CLZ, flags | (!(op_flags & SLJIT_32) ? 0 : ALT_FORM1), dst, dstw, TMP_REG1, 0, src, srcw);
#else
		return emit_op(compiler, SLJIT_CLZ, flags, dst, dstw, TMP_REG1, 0, src, srcw);
#endif
	}

	return SLJIT_SUCCESS;
}

#undef EMIT_MOV

#define TEST_SL_IMM(src, srcw) \
	(((src) & SLJIT_IMM) && (srcw) <= SIMM_MAX && (srcw) >= SIMM_MIN)

#define TEST_UL_IMM(src, srcw) \
	(((src) & SLJIT_IMM) && !((srcw) & ~0xffff))

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
#define TEST_SH_IMM(src, srcw) \
	(((src) & SLJIT_IMM) && !((srcw) & 0xffff) && (srcw) <= 0x7fffffffl && (srcw) >= -0x80000000l)
#else
#define TEST_SH_IMM(src, srcw) \
	(((src) & SLJIT_IMM) && !((srcw) & 0xffff))
#endif

#define TEST_UH_IMM(src, srcw) \
	(((src) & SLJIT_IMM) && !((srcw) & ~(sljit_sw)0xffff0000))

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
#define TEST_ADD_IMM(src, srcw) \
	(((src) & SLJIT_IMM) && (srcw) <= 0x7fff7fffl && (srcw) >= -0x80000000l)
#else
#define TEST_ADD_IMM(src, srcw) \
	((src) & SLJIT_IMM)
#endif

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
#define TEST_UI_IMM(src, srcw) \
	(((src) & SLJIT_IMM) && !((srcw) & ~0xffffffff))
#else
#define TEST_UI_IMM(src, srcw) \
	((src) & SLJIT_IMM)
#endif

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
#define TEST_ADD_FORM1(op) \
	(GET_FLAG_TYPE(op) == SLJIT_OVERFLOW \
		|| (op & (SLJIT_32 | SLJIT_SET_Z | VARIABLE_FLAG_MASK)) == (SLJIT_32 | SLJIT_SET_Z | SLJIT_SET_CARRY))
#define TEST_SUB_FORM2(op) \
	((GET_FLAG_TYPE(op) >= SLJIT_SIG_LESS && GET_FLAG_TYPE(op) <= SLJIT_SIG_LESS_EQUAL) \
		|| (op & (SLJIT_32 | SLJIT_SET_Z | VARIABLE_FLAG_MASK)) == (SLJIT_32 | SLJIT_SET_Z))
#define TEST_SUB_FORM3(op) \
	(GET_FLAG_TYPE(op) == SLJIT_OVERFLOW \
		|| (op & (SLJIT_32 | SLJIT_SET_Z)) == (SLJIT_32 | SLJIT_SET_Z))
#else
#define TEST_ADD_FORM1(op) \
	(GET_FLAG_TYPE(op) == SLJIT_OVERFLOW)
#define TEST_SUB_FORM2(op) \
	(GET_FLAG_TYPE(op) >= SLJIT_SIG_LESS && GET_FLAG_TYPE(op) <= SLJIT_SIG_LESS_EQUAL)
#define TEST_SUB_FORM3(op) \
	(GET_FLAG_TYPE(op) == SLJIT_OVERFLOW)
#endif

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 flags = HAS_FLAGS(op) ? ALT_SET_FLAGS : 0;

	CHECK_ERROR();
	CHECK(check_sljit_emit_op2(compiler, op, 0, dst, dstw, src1, src1w, src2, src2w));
	ADJUST_LOCAL_OFFSET(dst, dstw);
	ADJUST_LOCAL_OFFSET(src1, src1w);
	ADJUST_LOCAL_OFFSET(src2, src2w);

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	if (op & SLJIT_32) {
		/* Most operations expect sign extended arguments. */
		flags |= INT_DATA | SIGNED_DATA;
		if (src1 & SLJIT_IMM)
			src1w = (sljit_s32)(src1w);
		if (src2 & SLJIT_IMM)
			src2w = (sljit_s32)(src2w);
		if (HAS_FLAGS(op))
			flags |= ALT_SIGN_EXT;
	}
#endif
	if (GET_FLAG_TYPE(op) == SLJIT_OVERFLOW)
		FAIL_IF(push_inst(compiler, MTXER | S(TMP_ZERO)));

	switch (GET_OPCODE(op)) {
	case SLJIT_ADD:
		compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD;

		if (TEST_ADD_FORM1(op))
			return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM1, dst, dstw, src1, src1w, src2, src2w);

		if (!HAS_FLAGS(op) && ((src1 | src2) & SLJIT_IMM)) {
			if (TEST_SL_IMM(src2, src2w)) {
				compiler->imm = (sljit_ins)src2w & 0xffff;
				return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			if (TEST_SL_IMM(src1, src1w)) {
				compiler->imm = (sljit_ins)src1w & 0xffff;
				return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0);
			}
			if (TEST_SH_IMM(src2, src2w)) {
				compiler->imm = (sljit_ins)(src2w >> 16) & 0xffff;
				return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM2 | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			if (TEST_SH_IMM(src1, src1w)) {
				compiler->imm = (sljit_ins)(src1w >> 16) & 0xffff;
				return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM2 | ALT_FORM3, dst, dstw, src2, src2w, TMP_REG2, 0);
			}
			/* Range between -1 and -32768 is covered above. */
			if (TEST_ADD_IMM(src2, src2w)) {
				compiler->imm = (sljit_ins)src2w & 0xffffffff;
				return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM2 | ALT_FORM4, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			if (TEST_ADD_IMM(src1, src1w)) {
				compiler->imm = (sljit_ins)src1w & 0xffffffff;
				return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM2 | ALT_FORM4, dst, dstw, src2, src2w, TMP_REG2, 0);
			}
		}

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
		if ((op & (SLJIT_32 | SLJIT_SET_Z)) == (SLJIT_32 | SLJIT_SET_Z)) {
			if (TEST_SL_IMM(src2, src2w)) {
				compiler->imm = (sljit_ins)src2w & 0xffff;
				return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM4 | ALT_FORM5, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			if (TEST_SL_IMM(src1, src1w)) {
				compiler->imm = (sljit_ins)src1w & 0xffff;
				return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM4 | ALT_FORM5, dst, dstw, src2, src2w, TMP_REG2, 0);
			}
			return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM4, dst, dstw, src1, src1w, src2, src2w);
		}
#endif
		if (HAS_FLAGS(op)) {
			if (TEST_SL_IMM(src2, src2w)) {
				compiler->imm = (sljit_ins)src2w & 0xffff;
				return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			if (TEST_SL_IMM(src1, src1w)) {
				compiler->imm = (sljit_ins)src1w & 0xffff;
				return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM3, dst, dstw, src2, src2w, TMP_REG2, 0);
			}
		}
		return emit_op(compiler, SLJIT_ADD, flags | ((GET_FLAG_TYPE(op) == GET_FLAG_TYPE(SLJIT_SET_CARRY)) ? ALT_FORM5 : 0), dst, dstw, src1, src1w, src2, src2w);

	case SLJIT_ADDC:
		compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD;
		return emit_op(compiler, SLJIT_ADDC, flags, dst, dstw, src1, src1w, src2, src2w);

	case SLJIT_SUB:
		compiler->status_flags_state = SLJIT_CURRENT_FLAGS_SUB;

		if (GET_FLAG_TYPE(op) >= SLJIT_LESS && GET_FLAG_TYPE(op) <= SLJIT_LESS_EQUAL) {
			if (dst == TMP_REG2) {
				if (TEST_UL_IMM(src2, src2w)) {
					compiler->imm = (sljit_ins)src2w & 0xffff;
					return emit_op(compiler, SLJIT_SUB, flags | ALT_FORM1 | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
				}
				return emit_op(compiler, SLJIT_SUB, flags | ALT_FORM1, dst, dstw, src1, src1w, src2, src2w);
			}

			if ((src2 & SLJIT_IMM) && src2w >= 0 && src2w <= (SIMM_MAX + 1)) {
				compiler->imm = (sljit_ins)src2w;
				return emit_op(compiler, SLJIT_SUB, flags | ALT_FORM1 | ALT_FORM2 | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			return emit_op(compiler, SLJIT_SUB, flags | ALT_FORM1 | ALT_FORM3, dst, dstw, src1, src1w, src2, src2w);
		}

		if (dst == TMP_REG2 && GET_FLAG_TYPE(op) <= SLJIT_SIG_LESS_EQUAL) {
			if (TEST_SL_IMM(src2, src2w)) {
				compiler->imm = (sljit_ins)src2w & 0xffff;
				return emit_op(compiler, SLJIT_SUB, flags | ALT_FORM2 | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			return emit_op(compiler, SLJIT_SUB, flags | ALT_FORM2, dst, dstw, src1, src1w, src2, src2w);
		}

		if (TEST_SUB_FORM2(op)) {
			if ((src2 & SLJIT_IMM) && src2w >= -SIMM_MAX && src2w <= SIMM_MAX) {
				compiler->imm = (sljit_ins)src2w & 0xffff;
				return emit_op(compiler, SLJIT_SUB, flags | ALT_FORM2 | ALT_FORM3 | ALT_FORM4, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			return emit_op(compiler, SLJIT_SUB, flags | ALT_FORM2 | ALT_FORM4, dst, dstw, src1, src1w, src2, src2w);
		}

		if (TEST_SUB_FORM3(op))
			return emit_op(compiler, SLJIT_SUB, flags | ALT_FORM3, dst, dstw, src1, src1w, src2, src2w);

		if (TEST_SL_IMM(src2, -src2w)) {
			compiler->imm = (sljit_ins)(-src2w) & 0xffff;
			return emit_op(compiler, SLJIT_ADD, flags | (!HAS_FLAGS(op) ? ALT_FORM2 : ALT_FORM3), dst, dstw, src1, src1w, TMP_REG2, 0);
		}

		if (TEST_SL_IMM(src1, src1w) && !(op & SLJIT_SET_Z)) {
			compiler->imm = (sljit_ins)src1w & 0xffff;
			return emit_op(compiler, SLJIT_SUB, flags | ALT_FORM4, dst, dstw, src2, src2w, TMP_REG2, 0);
		}

		if (!HAS_FLAGS(op)) {
			if (TEST_SH_IMM(src2, -src2w)) {
				compiler->imm = (sljit_ins)((-src2w) >> 16) & 0xffff;
				return emit_op(compiler, SLJIT_ADD, flags |  ALT_FORM2 | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			/* Range between -1 and -32768 is covered above. */
			if (TEST_ADD_IMM(src2, -src2w)) {
				compiler->imm = (sljit_ins)-src2w;
				return emit_op(compiler, SLJIT_ADD, flags | ALT_FORM2 | ALT_FORM4, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
		}

		/* We know ALT_SIGN_EXT is set if it is an SLJIT_32 on 64 bit systems. */
		return emit_op(compiler, SLJIT_SUB, flags | ((GET_FLAG_TYPE(op) == GET_FLAG_TYPE(SLJIT_SET_CARRY)) ? ALT_FORM5 : 0), dst, dstw, src1, src1w, src2, src2w);

	case SLJIT_SUBC:
		compiler->status_flags_state = SLJIT_CURRENT_FLAGS_SUB;
		return emit_op(compiler, SLJIT_SUBC, flags, dst, dstw, src1, src1w, src2, src2w);

	case SLJIT_MUL:
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
		if (op & SLJIT_32)
			flags |= ALT_FORM2;
#endif
		if (!HAS_FLAGS(op)) {
			if (TEST_SL_IMM(src2, src2w)) {
				compiler->imm = (sljit_ins)src2w & 0xffff;
				return emit_op(compiler, SLJIT_MUL, flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			if (TEST_SL_IMM(src1, src1w)) {
				compiler->imm = (sljit_ins)src1w & 0xffff;
				return emit_op(compiler, SLJIT_MUL, flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
			}
		}
		else
			FAIL_IF(push_inst(compiler, MTXER | S(TMP_ZERO)));
		return emit_op(compiler, SLJIT_MUL, flags, dst, dstw, src1, src1w, src2, src2w);

	case SLJIT_AND:
	case SLJIT_OR:
	case SLJIT_XOR:
		/* Commutative unsigned operations. */
		if (!HAS_FLAGS(op) || GET_OPCODE(op) == SLJIT_AND) {
			if (TEST_UL_IMM(src2, src2w)) {
				compiler->imm = (sljit_ins)src2w;
				return emit_op(compiler, GET_OPCODE(op), flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			if (TEST_UL_IMM(src1, src1w)) {
				compiler->imm = (sljit_ins)src1w;
				return emit_op(compiler, GET_OPCODE(op), flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
			}
			if (TEST_UH_IMM(src2, src2w)) {
				compiler->imm = (sljit_ins)(src2w >> 16) & 0xffff;
				return emit_op(compiler, GET_OPCODE(op), flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			if (TEST_UH_IMM(src1, src1w)) {
				compiler->imm = (sljit_ins)(src1w >> 16) & 0xffff;
				return emit_op(compiler, GET_OPCODE(op), flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0);
			}
		}
		if (GET_OPCODE(op) != SLJIT_AND) {
			/* Unlike or and xor, the and resets unwanted bits as well. */
			if (TEST_UI_IMM(src2, src2w)) {
				compiler->imm = (sljit_ins)src2w;
				return emit_op(compiler, GET_OPCODE(op), flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
			}
			if (TEST_UI_IMM(src1, src1w)) {
				compiler->imm = (sljit_ins)src1w;
				return emit_op(compiler, GET_OPCODE(op), flags | ALT_FORM3, dst, dstw, src2, src2w, TMP_REG2, 0);
			}
		}
		return emit_op(compiler, GET_OPCODE(op), flags, dst, dstw, src1, src1w, src2, src2w);

	case SLJIT_SHL:
	case SLJIT_LSHR:
	case SLJIT_ASHR:
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
		if (op & SLJIT_32)
			flags |= ALT_FORM2;
#endif
		if (src2 & SLJIT_IMM) {
			compiler->imm = (sljit_ins)src2w;
			return emit_op(compiler, GET_OPCODE(op), flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
		}
		return emit_op(compiler, GET_OPCODE(op), flags, dst, dstw, src1, src1w, src2, src2w);
	}

	return SLJIT_SUCCESS;
}

SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2u(struct sljit_compiler *compiler, sljit_s32 op,
	sljit_s32 src1, sljit_sw src1w,
	sljit_s32 src2, sljit_sw src2w)
{
	CHECK_ERROR();
	CHECK(check_sljit_emit_op2(compiler, op, 1, 0, 0, src1, src1w, src2, src2w));

#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
	compiler->skip_checks = 1;
#endif
	return sljit_emit_op2(compiler, op, TMP_REG2, 0, src1, src1w, src2, src2w);
}

#undef TEST_ADD_FORM1
#undef TEST_SUB_FORM2
#undef TEST_SUB_FORM3

SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_src(struct sljit_compiler *compiler, sljit_s32 op,
	sljit_s32 src, sljit_sw srcw)
{
	CHECK_ERROR();
	CHECK(check_sljit_emit_op_src(compiler, op, src, srcw));
	ADJUST_LOCAL_OFFSET(src, srcw);

	switch (op) {
	case SLJIT_FAST_RETURN:
		if (FAST_IS_REG(src))
			FAIL_IF(push_inst(compiler, MTLR | S(src)));
		else {
			FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
			FAIL_IF(push_inst(compiler, MTLR | S(TMP_REG2)));
		}

		return push_inst(compiler, BLR);
	case SLJIT_SKIP_FRAMES_BEFORE_FAST_RETURN:
		return SLJIT_SUCCESS;
	case SLJIT_PREFETCH_L1:
	case SLJIT_PREFETCH_L2:
	case SLJIT_PREFETCH_L3:
	case SLJIT_PREFETCH_ONCE:
		return emit_prefetch(compiler, src, srcw);
	}

	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_u32 size)
{
	CHECK_ERROR();
	CHECK(check_sljit_emit_op_custom(compiler, instruction, size));

	return push_inst(compiler, *(sljit_ins*)instruction);
}

/* --------------------------------------------------------------------- */
/*  Floating point operators                                             */
/* --------------------------------------------------------------------- */

#define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_32) >> 6))
#define SELECT_FOP(op, single, double) ((sljit_ins)((op & SLJIT_32) ? single : double))

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
#define FLOAT_TMP_MEM_OFFSET (6 * sizeof(sljit_sw))
#else
#define FLOAT_TMP_MEM_OFFSET (2 * sizeof(sljit_sw))

#if (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
#define FLOAT_TMP_MEM_OFFSET_LOW (2 * sizeof(sljit_sw))
#define FLOAT_TMP_MEM_OFFSET_HI (3 * sizeof(sljit_sw))
#else
#define FLOAT_TMP_MEM_OFFSET_LOW (3 * sizeof(sljit_sw))
#define FLOAT_TMP_MEM_OFFSET_HI (2 * sizeof(sljit_sw))
#endif

#endif /* SLJIT_CONFIG_PPC_64 */

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)
{
	if (src & SLJIT_MEM) {
		/* We can ignore the temporary data store on the stack from caching point of view. */
		FAIL_IF(emit_op_mem(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, TMP_REG1));
		src = TMP_FREG1;
	}

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	op = GET_OPCODE(op);
	FAIL_IF(push_inst(compiler, (op == SLJIT_CONV_S32_FROM_F64 ? FCTIWZ : FCTIDZ) | FD(TMP_FREG1) | FB(src)));

	if (op == SLJIT_CONV_SW_FROM_F64) {
		if (FAST_IS_REG(dst)) {
			FAIL_IF(emit_op_mem(compiler, DOUBLE_DATA, TMP_FREG1, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, TMP_REG1));
			return emit_op_mem(compiler, WORD_DATA | LOAD_DATA, dst, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, TMP_REG1);
		}
		return emit_op_mem(compiler, DOUBLE_DATA, TMP_FREG1, dst, dstw, TMP_REG1);
	}
#else
	FAIL_IF(push_inst(compiler, FCTIWZ | FD(TMP_FREG1) | FB(src)));
#endif

	if (FAST_IS_REG(dst)) {
		FAIL_IF(load_immediate(compiler, TMP_REG1, FLOAT_TMP_MEM_OFFSET));
		FAIL_IF(push_inst(compiler, STFIWX | FS(TMP_FREG1) | A(SLJIT_SP) | B(TMP_REG1)));
		return emit_op_mem(compiler, INT_DATA | LOAD_DATA, dst, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, TMP_REG1);
	}

	SLJIT_ASSERT(dst & SLJIT_MEM);

	if (dst & OFFS_REG_MASK) {
		dstw &= 0x3;
		if (dstw) {
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
			FAIL_IF(push_inst(compiler, RLWINM | S(OFFS_REG(dst)) | A(TMP_REG1) | ((sljit_ins)dstw << 11) | ((31 - (sljit_ins)dstw) << 1)));
#else
			FAIL_IF(push_inst(compiler, RLDI(TMP_REG1, OFFS_REG(dst), dstw, 63 - dstw, 1)));
#endif
			dstw = TMP_REG1;
		}
		else
			dstw = OFFS_REG(dst);
	}
	else {
		if ((dst & REG_MASK) && !dstw) {
			dstw = dst & REG_MASK;
			dst = 0;
		}
		else {
			/* This works regardless we have SLJIT_MEM1 or SLJIT_MEM0. */
			FAIL_IF(load_immediate(compiler, TMP_REG1, dstw));
			dstw = TMP_REG1;
		}
	}

	return push_inst(compiler, STFIWX | FS(TMP_FREG1) | A(dst & REG_MASK) | B(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)
{
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)

	sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;

	if (src & SLJIT_IMM) {
		if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32)
			srcw = (sljit_s32)srcw;
		FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
		src = TMP_REG1;
	}
	else if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32) {
		if (FAST_IS_REG(src))
			FAIL_IF(push_inst(compiler, EXTSW | S(src) | A(TMP_REG1)));
		else
			FAIL_IF(emit_op_mem(compiler, INT_DATA | SIGNED_DATA | LOAD_DATA, TMP_REG1, src, srcw, TMP_REG1));
		src = TMP_REG1;
	}

	if (FAST_IS_REG(src)) {
		FAIL_IF(emit_op_mem(compiler, WORD_DATA, src, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, TMP_REG1));
		FAIL_IF(emit_op_mem(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG1, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, TMP_REG1));
	}
	else
		FAIL_IF(emit_op_mem(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG1, src, srcw, TMP_REG1));

	FAIL_IF(push_inst(compiler, FCFID | FD(dst_r) | FB(TMP_FREG1)));

	if (dst & SLJIT_MEM)
		return emit_op_mem(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, TMP_REG1);
	if (op & SLJIT_32)
		return push_inst(compiler, FRSP | FD(dst_r) | FB(dst_r));
	return SLJIT_SUCCESS;

#else

	sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
	sljit_s32 invert_sign = 1;

	if (src & SLJIT_IMM) {
		FAIL_IF(load_immediate(compiler, TMP_REG1, srcw ^ (sljit_sw)0x80000000));
		src = TMP_REG1;
		invert_sign = 0;
	}
	else if (!FAST_IS_REG(src)) {
		FAIL_IF(emit_op_mem(compiler, WORD_DATA | SIGNED_DATA | LOAD_DATA, TMP_REG1, src, srcw, TMP_REG1));
		src = TMP_REG1;
	}

	/* First, a special double floating point value is constructed: (2^53 + (input xor (2^31)))
	   The double precision format has exactly 53 bit precision, so the lower 32 bit represents
	   the lower 32 bit of such value. The result of xor 2^31 is the same as adding 0x80000000
	   to the input, which shifts it into the 0 - 0xffffffff range. To get the converted floating
	   point value, we need to substract 2^53 + 2^31 from the constructed value. */
	FAIL_IF(push_inst(compiler, ADDIS | D(TMP_REG2) | A(0) | 0x4330));
	if (invert_sign)
		FAIL_IF(push_inst(compiler, XORIS | S(src) | A(TMP_REG1) | 0x8000));
	FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET_HI, TMP_REG1));
	FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG1, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET_LOW, TMP_REG2));
	FAIL_IF(push_inst(compiler, ADDIS | D(TMP_REG1) | A(0) | 0x8000));
	FAIL_IF(emit_op_mem(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG1, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, TMP_REG1));
	FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG1, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET_LOW, TMP_REG2));
	FAIL_IF(emit_op_mem(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG2, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, TMP_REG1));

	FAIL_IF(push_inst(compiler, FSUB | FD(dst_r) | FA(TMP_FREG1) | FB(TMP_FREG2)));

	if (dst & SLJIT_MEM)
		return emit_op_mem(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, TMP_REG1);
	if (op & SLJIT_32)
		return push_inst(compiler, FRSP | FD(dst_r) | FB(dst_r));
	return SLJIT_SUCCESS;

#endif
}

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)
{
	if (src1 & SLJIT_MEM) {
		FAIL_IF(emit_op_mem(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, TMP_REG1));
		src1 = TMP_FREG1;
	}

	if (src2 & SLJIT_MEM) {
		FAIL_IF(emit_op_mem(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, TMP_REG2));
		src2 = TMP_FREG2;
	}

	return push_inst(compiler, FCMPU | CRD(4) | FA(src1) | FB(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;

	CHECK_ERROR();

	SLJIT_COMPILE_ASSERT((SLJIT_32 == 0x100) && !(DOUBLE_DATA & 0x4), float_transfer_bit_error);
	SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);

	if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32)
		op ^= SLJIT_32;

	dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;

	if (src & SLJIT_MEM) {
		FAIL_IF(emit_op_mem(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, TMP_REG1));
		src = dst_r;
	}

	switch (GET_OPCODE(op)) {
	case SLJIT_CONV_F64_FROM_F32:
		op ^= SLJIT_32;
		if (op & SLJIT_32) {
			FAIL_IF(push_inst(compiler, FRSP | FD(dst_r) | FB(src)));
			break;
		}
		/* Fall through. */
	case SLJIT_MOV_F64:
		if (src != dst_r) {
			if (dst_r != TMP_FREG1)
				FAIL_IF(push_inst(compiler, FMR | FD(dst_r) | FB(src)));
			else
				dst_r = src;
		}
		break;
	case SLJIT_NEG_F64:
		FAIL_IF(push_inst(compiler, FNEG | FD(dst_r) | FB(src)));
		break;
	case SLJIT_ABS_F64:
		FAIL_IF(push_inst(compiler, FABS | FD(dst_r) | FB(src)));
		break;
	}

	if (dst & SLJIT_MEM)
		FAIL_IF(emit_op_mem(compiler, FLOAT_DATA(op), dst_r, dst, dstw, TMP_REG1));
	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);

	dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG2;

	if (src1 & SLJIT_MEM) {
		FAIL_IF(emit_op_mem(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, TMP_REG1));
		src1 = TMP_FREG1;
	}

	if (src2 & SLJIT_MEM) {
		FAIL_IF(emit_op_mem(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, TMP_REG2));
		src2 = TMP_FREG2;
	}

	switch (GET_OPCODE(op)) {
	case SLJIT_ADD_F64:
		FAIL_IF(push_inst(compiler, SELECT_FOP(op, FADDS, FADD) | FD(dst_r) | FA(src1) | FB(src2)));
		break;

	case SLJIT_SUB_F64:
		FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSUBS, FSUB) | FD(dst_r) | FA(src1) | FB(src2)));
		break;

	case SLJIT_MUL_F64:
		FAIL_IF(push_inst(compiler, SELECT_FOP(op, FMULS, FMUL) | FD(dst_r) | FA(src1) | FC(src2) /* FMUL use FC as src2 */));
		break;

	case SLJIT_DIV_F64:
		FAIL_IF(push_inst(compiler, SELECT_FOP(op, FDIVS, FDIV) | FD(dst_r) | FA(src1) | FB(src2)));
		break;
	}

	if (dst & SLJIT_MEM)
		FAIL_IF(emit_op_mem(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, TMP_REG1));

	return SLJIT_SUCCESS;
}

#undef SELECT_FOP

/* --------------------------------------------------------------------- */
/*  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, MFLR | D(dst));

	/* Memory. */
	FAIL_IF(push_inst(compiler, MFLR | D(TMP_REG2)));
	return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
}

/* --------------------------------------------------------------------- */
/*  Conditional instructions                                             */
/* --------------------------------------------------------------------- */

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;
}

static sljit_ins get_bo_bi_flags(struct sljit_compiler *compiler, sljit_s32 type)
{
	switch (type) {
	case SLJIT_NOT_CARRY:
		if (compiler->status_flags_state & SLJIT_CURRENT_FLAGS_SUB)
			return (4 << 21) | (2 << 16);
		/* fallthrough */

	case SLJIT_EQUAL:
		return (12 << 21) | (2 << 16);

	case SLJIT_CARRY:
		if (compiler->status_flags_state & SLJIT_CURRENT_FLAGS_SUB)
			return (12 << 21) | (2 << 16);
		/* fallthrough */

	case SLJIT_NOT_EQUAL:
		return (4 << 21) | (2 << 16);

	case SLJIT_LESS:
	case SLJIT_SIG_LESS:
		return (12 << 21) | (0 << 16);

	case SLJIT_GREATER_EQUAL:
	case SLJIT_SIG_GREATER_EQUAL:
		return (4 << 21) | (0 << 16);

	case SLJIT_GREATER:
	case SLJIT_SIG_GREATER:
		return (12 << 21) | (1 << 16);

	case SLJIT_LESS_EQUAL:
	case SLJIT_SIG_LESS_EQUAL:
		return (4 << 21) | (1 << 16);

	case SLJIT_LESS_F64:
		return (12 << 21) | ((4 + 0) << 16);

	case SLJIT_GREATER_EQUAL_F64:
		return (4 << 21) | ((4 + 0) << 16);

	case SLJIT_GREATER_F64:
		return (12 << 21) | ((4 + 1) << 16);

	case SLJIT_LESS_EQUAL_F64:
		return (4 << 21) | ((4 + 1) << 16);

	case SLJIT_OVERFLOW:
		return (12 << 21) | (3 << 16);

	case SLJIT_NOT_OVERFLOW:
		return (4 << 21) | (3 << 16);

	case SLJIT_EQUAL_F64:
		return (12 << 21) | ((4 + 2) << 16);

	case SLJIT_NOT_EQUAL_F64:
		return (4 << 21) | ((4 + 2) << 16);

	case SLJIT_UNORDERED_F64:
		return (12 << 21) | ((4 + 3) << 16);

	case SLJIT_ORDERED_F64:
		return (4 << 21) | ((4 + 3) << 16);

	default:
		SLJIT_ASSERT(type >= SLJIT_JUMP && type <= SLJIT_CALL_CDECL);
		return (20 << 21);
	}
}

SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
{
	struct sljit_jump *jump;
	sljit_ins bo_bi_flags;

	CHECK_ERROR_PTR();
	CHECK_PTR(check_sljit_emit_jump(compiler, type));

	bo_bi_flags = get_bo_bi_flags(compiler, type & 0xff);
	if (!bo_bi_flags)
		return NULL;

	jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
	PTR_FAIL_IF(!jump);
	set_jump(jump, compiler, (sljit_u32)type & SLJIT_REWRITABLE_JUMP);
	type &= 0xff;

	if (type == SLJIT_CARRY || type == SLJIT_NOT_CARRY)
		PTR_FAIL_IF(push_inst(compiler, ADDE | RC(ALT_SET_FLAGS) | D(TMP_REG1) | A(TMP_ZERO) | B(TMP_ZERO)));

	/* In PPC, we don't need to touch the arguments. */
	if (type < SLJIT_JUMP)
		jump->flags |= IS_COND;
#if (defined SLJIT_PASS_ENTRY_ADDR_TO_CALL && SLJIT_PASS_ENTRY_ADDR_TO_CALL)
	if (type >= SLJIT_CALL)
		jump->flags |= IS_CALL;
#endif

	PTR_FAIL_IF(emit_const(compiler, TMP_CALL_REG, 0));
	PTR_FAIL_IF(push_inst(compiler, MTCTR | S(TMP_CALL_REG)));
	jump->addr = compiler->size;
	PTR_FAIL_IF(push_inst(compiler, BCCTR | bo_bi_flags | (type >= SLJIT_FAST_CALL ? 1 : 0)));
	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_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	PTR_FAIL_IF(call_with_args(compiler, arg_types, NULL));
#endif

	if (type & SLJIT_CALL_RETURN) {
		PTR_FAIL_IF(emit_stack_frame_release(compiler));
		type = SLJIT_JUMP | (type & SLJIT_REWRITABLE_JUMP);
	}

#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
	compiler->skip_checks = 1;
#endif

	return sljit_emit_jump(compiler, type);
}

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 = NULL;
	sljit_s32 src_r;

	CHECK_ERROR();
	CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
	ADJUST_LOCAL_OFFSET(src, srcw);

	if (FAST_IS_REG(src)) {
#if (defined SLJIT_PASS_ENTRY_ADDR_TO_CALL && SLJIT_PASS_ENTRY_ADDR_TO_CALL)
		if (type >= SLJIT_CALL && src != TMP_CALL_REG) {
			FAIL_IF(push_inst(compiler, OR | S(src) | A(TMP_CALL_REG) | B(src)));
			src_r = TMP_CALL_REG;
		}
		else
			src_r = src;
#else /* SLJIT_PASS_ENTRY_ADDR_TO_CALL */
		src_r = src;
#endif /* SLJIT_PASS_ENTRY_ADDR_TO_CALL */
	} else if (src & SLJIT_IMM) {
		/* 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);
		jump->u.target = (sljit_uw)srcw;

#if (defined SLJIT_PASS_ENTRY_ADDR_TO_CALL && SLJIT_PASS_ENTRY_ADDR_TO_CALL)
		if (type >= SLJIT_CALL)
			jump->flags |= IS_CALL;
#endif /* SLJIT_PASS_ENTRY_ADDR_TO_CALL */

		FAIL_IF(emit_const(compiler, TMP_CALL_REG, 0));
		src_r = TMP_CALL_REG;
	}
	else {
		FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_CALL_REG, 0, TMP_REG1, 0, src, srcw));
		src_r = TMP_CALL_REG;
	}

	FAIL_IF(push_inst(compiler, MTCTR | S(src_r)));
	if (jump)
		jump->addr = compiler->size;
	return push_inst(compiler, BCCTR | (20 << 21) | (type >= SLJIT_FAST_CALL ? 1 : 0));
}

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 (src & SLJIT_MEM) {
		ADJUST_LOCAL_OFFSET(src, srcw);
		FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_CALL_REG, 0, TMP_REG1, 0, src, srcw));
		src = TMP_CALL_REG;
	}

	if (type & SLJIT_CALL_RETURN) {
		if (src >= SLJIT_FIRST_SAVED_REG && src <= SLJIT_S0) {
			FAIL_IF(push_inst(compiler, OR | S(src) | A(TMP_CALL_REG) | B(src)));
			src = TMP_CALL_REG;
		}

		FAIL_IF(emit_stack_frame_release(compiler));
		type = SLJIT_JUMP;
	}

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	FAIL_IF(call_with_args(compiler, arg_types, &src));
#endif

#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 reg, invert;
	sljit_u32 bit, from_xer;
	sljit_s32 saved_op = op;
	sljit_sw saved_dstw = dstw;
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	sljit_s32 input_flags = ((op & SLJIT_32) || op == SLJIT_MOV32) ? INT_DATA : WORD_DATA;
#else
	sljit_s32 input_flags = WORD_DATA;
#endif

	CHECK_ERROR();
	CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
	ADJUST_LOCAL_OFFSET(dst, dstw);

	op = GET_OPCODE(op);
	reg = (op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2;

	if (op >= SLJIT_ADD && (dst & SLJIT_MEM))
		FAIL_IF(emit_op_mem(compiler, input_flags | LOAD_DATA, TMP_REG1, dst, dstw, TMP_REG1));

	invert = 0;
	bit = 0;
	from_xer = 0;

	switch (type & 0xff) {
	case SLJIT_LESS:
	case SLJIT_SIG_LESS:
		break;

	case SLJIT_GREATER_EQUAL:
	case SLJIT_SIG_GREATER_EQUAL:
		invert = 1;
		break;

	case SLJIT_GREATER:
	case SLJIT_SIG_GREATER:
		bit = 1;
		break;

	case SLJIT_LESS_EQUAL:
	case SLJIT_SIG_LESS_EQUAL:
		bit = 1;
		invert = 1;
		break;

	case SLJIT_EQUAL:
		bit = 2;
		break;

	case SLJIT_NOT_EQUAL:
		bit = 2;
		invert = 1;
		break;

	case SLJIT_OVERFLOW:
		from_xer = 1;
		bit = 1;
		break;

	case SLJIT_NOT_OVERFLOW:
		from_xer = 1;
		bit = 1;
		invert = 1;
		break;

	case SLJIT_CARRY:
		from_xer = 1;
		bit = 2;
		invert = (compiler->status_flags_state & SLJIT_CURRENT_FLAGS_SUB) != 0;
		break;

	case SLJIT_NOT_CARRY:
		from_xer = 1;
		bit = 2;
		invert = (compiler->status_flags_state & SLJIT_CURRENT_FLAGS_ADD) != 0;
		break;

	case SLJIT_LESS_F64:
		bit = 4 + 0;
		break;

	case SLJIT_GREATER_EQUAL_F64:
		bit = 4 + 0;
		invert = 1;
		break;

	case SLJIT_GREATER_F64:
		bit = 4 + 1;
		break;

	case SLJIT_LESS_EQUAL_F64:
		bit = 4 + 1;
		invert = 1;
		break;

	case SLJIT_EQUAL_F64:
		bit = 4 + 2;
		break;

	case SLJIT_NOT_EQUAL_F64:
		bit = 4 + 2;
		invert = 1;
		break;

	case SLJIT_UNORDERED_F64:
		bit = 4 + 3;
		break;

	case SLJIT_ORDERED_F64:
		bit = 4 + 3;
		invert = 1;
		break;

	default:
		SLJIT_UNREACHABLE();
		break;
	}

	FAIL_IF(push_inst(compiler, (from_xer ? MFXER : MFCR) | D(reg)));
	FAIL_IF(push_inst(compiler, RLWINM | S(reg) | A(reg) | ((1 + bit) << 11) | (31 << 6) | (31 << 1)));

	if (invert)
		FAIL_IF(push_inst(compiler, XORI | S(reg) | A(reg) | 0x1));

	if (op < SLJIT_ADD) {
		if (!(dst & SLJIT_MEM))
			return SLJIT_SUCCESS;
		return emit_op_mem(compiler, input_flags, reg, dst, dstw, TMP_REG1);
	}

#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
	compiler->skip_checks = 1;
#endif
	if (dst & SLJIT_MEM)
		return sljit_emit_op2(compiler, saved_op, dst, saved_dstw, TMP_REG1, 0, TMP_REG2, 0);
	return sljit_emit_op2(compiler, saved_op, dst, 0, dst, 0, TMP_REG2, 0);
}

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)
{
	CHECK_ERROR();
	CHECK(check_sljit_emit_cmov(compiler, type, dst_reg, src, srcw));

	return sljit_emit_cmov_generic(compiler, type, dst_reg, src, srcw);;
}

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 mem_flags;
	sljit_ins inst;

	CHECK_ERROR();
	CHECK(check_sljit_emit_mem(compiler, type, reg, mem, memw));

	if (type & SLJIT_MEM_POST)
		return SLJIT_ERR_UNSUPPORTED;

	switch (type & 0xff) {
	case SLJIT_MOV:
	case SLJIT_MOV_P:
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
	case SLJIT_MOV_U32:
	case SLJIT_MOV_S32:
	case SLJIT_MOV32:
#endif
		mem_flags = WORD_DATA;
		break;

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
	case SLJIT_MOV_U32:
	case SLJIT_MOV32:
		mem_flags = INT_DATA;
		break;

	case SLJIT_MOV_S32:
		mem_flags = INT_DATA;

		if (!(type & SLJIT_MEM_STORE) && !(type & SLJIT_32)) {
			if (mem & OFFS_REG_MASK)
				mem_flags |= SIGNED_DATA;
			else
				return SLJIT_ERR_UNSUPPORTED;
		}
		break;
#endif

	case SLJIT_MOV_U8:
	case SLJIT_MOV_S8:
		mem_flags = BYTE_DATA;
		break;

	case SLJIT_MOV_U16:
		mem_flags = HALF_DATA;
		break;

	case SLJIT_MOV_S16:
		mem_flags = HALF_DATA | SIGNED_DATA;
		break;

	default:
		SLJIT_UNREACHABLE();
		mem_flags = WORD_DATA;
		break;
	}

	if (!(type & SLJIT_MEM_STORE))
		mem_flags |= LOAD_DATA;

	if (SLJIT_UNLIKELY(mem & OFFS_REG_MASK)) {
		if (memw != 0)
			return SLJIT_ERR_UNSUPPORTED;

		if (type & SLJIT_MEM_SUPP)
			return SLJIT_SUCCESS;

		inst = updated_data_transfer_insts[mem_flags | INDEXED];
		FAIL_IF(push_inst(compiler, INST_CODE_AND_DST(inst, 0, reg) | A(mem & REG_MASK) | B(OFFS_REG(mem))));
	}
	else {
		if (memw > SIMM_MAX || memw < SIMM_MIN)
			return SLJIT_ERR_UNSUPPORTED;

		inst = updated_data_transfer_insts[mem_flags];

#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
		if ((inst & INT_ALIGNED) && (memw & 0x3) != 0)
			return SLJIT_ERR_UNSUPPORTED;
#endif

		if (type & SLJIT_MEM_SUPP)
			return SLJIT_SUCCESS;

		FAIL_IF(push_inst(compiler, INST_CODE_AND_DST(inst, 0, reg) | A(mem & REG_MASK) | IMM(memw)));
	}

	if ((mem_flags & LOAD_DATA) && (type & 0xff) == SLJIT_MOV_S8)
		return push_inst(compiler, EXTSB | S(reg) | A(reg));
	return SLJIT_SUCCESS;
}

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_s32 mem_flags;
	sljit_ins inst;

	CHECK_ERROR();
	CHECK(check_sljit_emit_fmem(compiler, type, freg, mem, memw));

	if (type & SLJIT_MEM_POST)
		return SLJIT_ERR_UNSUPPORTED;

	if (SLJIT_UNLIKELY(mem & OFFS_REG_MASK)) {
		if (memw != 0)
			return SLJIT_ERR_UNSUPPORTED;
	}
	else {
		if (memw > SIMM_MAX || memw < SIMM_MIN)
			return SLJIT_ERR_UNSUPPORTED;
	}

	if (type & SLJIT_MEM_SUPP)
		return SLJIT_SUCCESS;

	mem_flags = FLOAT_DATA(type);

	if (!(type & SLJIT_MEM_STORE))
		mem_flags |= LOAD_DATA;

	if (SLJIT_UNLIKELY(mem & OFFS_REG_MASK)) {
		inst = updated_data_transfer_insts[mem_flags | INDEXED];
		return push_inst(compiler, INST_CODE_AND_DST(inst, DOUBLE_DATA, freg) | A(mem & REG_MASK) | B(OFFS_REG(mem)));
	}

	inst = updated_data_transfer_insts[mem_flags];
	return push_inst(compiler, INST_CODE_AND_DST(inst, DOUBLE_DATA, freg) | A(mem & REG_MASK) | IMM(memw));
}

SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
{
	struct sljit_const *const_;
	sljit_s32 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_REG2;
	PTR_FAIL_IF(emit_const(compiler, dst_r, init_value));

	if (dst & SLJIT_MEM)
		PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));

	return const_;
}

SLJIT_API_FUNC_ATTRIBUTE struct sljit_put_label* sljit_emit_put_label(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
{
	struct sljit_put_label *put_label;
	sljit_s32 dst_r;

	CHECK_ERROR_PTR();
	CHECK_PTR(check_sljit_emit_put_label(compiler, dst, dstw));
	ADJUST_LOCAL_OFFSET(dst, dstw);

	put_label = (struct sljit_put_label*)ensure_abuf(compiler, sizeof(struct sljit_put_label));
	PTR_FAIL_IF(!put_label);
	set_put_label(put_label, compiler, 0);

	dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
	PTR_FAIL_IF(emit_const(compiler, dst_r, 0));
#else
	PTR_FAIL_IF(push_inst(compiler, (sljit_ins)dst_r));
	compiler->size += 4;
#endif

	if (dst & SLJIT_MEM)
		PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));

	return put_label;
}