pcre-8.34

1 files changed, 810 insertions, 0 deletions

diff --git a/pcre/sljit/sljitNativeX86_64.c b/pcre/sljit/sljitNativeX86_64.c
new file mode 100644
index 00000000000..28f04fddd80
--- /dev/null
+++ b/pcre/sljit/sljitNativeX86_64.c
@@ -0,0 +1,810 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* x86 64-bit arch dependent functions. */
+
+static sljit_si emit_load_imm64(struct sljit_compiler *compiler, sljit_si reg, sljit_sw imm)
+{
+	sljit_ub *inst;
+
+	inst = (sljit_ub*)ensure_buf(compiler, 1 + 2 + sizeof(sljit_sw));
+	FAIL_IF(!inst);
+	INC_SIZE(2 + sizeof(sljit_sw));
+	*inst++ = REX_W | ((reg_map[reg] <= 7) ? 0 : REX_B);
+	*inst++ = MOV_r_i32 + (reg_map[reg] & 0x7);
+	*(sljit_sw*)inst = imm;
+	return SLJIT_SUCCESS;
+}
+
+static sljit_ub* generate_far_jump_code(struct sljit_jump *jump, sljit_ub *code_ptr, sljit_si type)
+{
+	if (type < SLJIT_JUMP) {
+		/* Invert type. */
+		*code_ptr++ = get_jump_code(type ^ 0x1) - 0x10;
+		*code_ptr++ = 10 + 3;
+	}
+
+	SLJIT_COMPILE_ASSERT(reg_map[TMP_REG3] == 9, tmp3_is_9_first);
+	*code_ptr++ = REX_W | REX_B;
+	*code_ptr++ = MOV_r_i32 + 1;
+	jump->addr = (sljit_uw)code_ptr;
+
+	if (jump->flags & JUMP_LABEL)
+		jump->flags |= PATCH_MD;
+	else
+		*(sljit_sw*)code_ptr = jump->u.target;
+
+	code_ptr += sizeof(sljit_sw);
+	*code_ptr++ = REX_B;
+	*code_ptr++ = GROUP_FF;
+	*code_ptr++ = (type >= SLJIT_FAST_CALL) ? (MOD_REG | CALL_rm | 1) : (MOD_REG | JMP_rm | 1);
+
+	return code_ptr;
+}
+
+static sljit_ub* generate_fixed_jump(sljit_ub *code_ptr, sljit_sw addr, sljit_si type)
+{
+	sljit_sw delta = addr - ((sljit_sw)code_ptr + 1 + sizeof(sljit_si));
+
+	if (delta <= SLJIT_W(0x7fffffff) && delta >= SLJIT_W(-0x80000000)) {
+		*code_ptr++ = (type == 2) ? CALL_i32 : JMP_i32;
+		*(sljit_sw*)code_ptr = delta;
+	}
+	else {
+		SLJIT_COMPILE_ASSERT(reg_map[TMP_REG3] == 9, tmp3_is_9_second);
+		*code_ptr++ = REX_W | REX_B;
+		*code_ptr++ = MOV_r_i32 + 1;
+		*(sljit_sw*)code_ptr = addr;
+		code_ptr += sizeof(sljit_sw);
+		*code_ptr++ = REX_B;
+		*code_ptr++ = GROUP_FF;
+		*code_ptr++ = (type == 2) ? (MOD_REG | CALL_rm | 1) : (MOD_REG | JMP_rm | 1);
+	}
+
+	return code_ptr;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_enter(struct sljit_compiler *compiler, sljit_si args, sljit_si scratches, sljit_si saveds, sljit_si local_size)
+{
+	sljit_si size, pushed_size;
+	sljit_ub *inst;
+
+	CHECK_ERROR();
+	check_sljit_emit_enter(compiler, args, scratches, saveds, local_size);
+
+	compiler->scratches = scratches;
+	compiler->saveds = saveds;
+	compiler->flags_saved = 0;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	size = saveds;
+	/* Including the return address saved by the call instruction. */
+	pushed_size = (saveds + 1) * sizeof(sljit_sw);
+#ifndef _WIN64
+	if (saveds >= 2)
+		size += saveds - 1;
+#else
+	if (saveds >= 4)
+		size += saveds - 3;
+	if (scratches >= 5) {
+		size += (5 - 4) * 2;
+		pushed_size += sizeof(sljit_sw);
+	}
+#endif
+	size += args * 3;
+	if (size > 0) {
+		inst = (sljit_ub*)ensure_buf(compiler, 1 + size);
+		FAIL_IF(!inst);
+
+		INC_SIZE(size);
+		if (saveds >= 5) {
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_EREG2] >= 8, saved_ereg2_is_hireg);
+			*inst++ = REX_B;
+			PUSH_REG(reg_lmap[SLJIT_SAVED_EREG2]);
+		}
+		if (saveds >= 4) {
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_EREG1] >= 8, saved_ereg1_is_hireg);
+			*inst++ = REX_B;
+			PUSH_REG(reg_lmap[SLJIT_SAVED_EREG1]);
+		}
+		if (saveds >= 3) {
+#ifndef _WIN64
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG3] >= 8, saved_reg3_is_hireg);
+			*inst++ = REX_B;
+#else
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG3] < 8, saved_reg3_is_loreg);
+#endif
+			PUSH_REG(reg_lmap[SLJIT_SAVED_REG3]);
+		}
+		if (saveds >= 2) {
+#ifndef _WIN64
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG2] >= 8, saved_reg2_is_hireg);
+			*inst++ = REX_B;
+#else
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG2] < 8, saved_reg2_is_loreg);
+#endif
+			PUSH_REG(reg_lmap[SLJIT_SAVED_REG2]);
+		}
+		if (saveds >= 1) {
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG1] < 8, saved_reg1_is_loreg);
+			PUSH_REG(reg_lmap[SLJIT_SAVED_REG1]);
+		}
+#ifdef _WIN64
+		if (scratches >= 5) {
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_TEMPORARY_EREG2] >= 8, temporary_ereg2_is_hireg);
+			*inst++ = REX_B;
+			PUSH_REG(reg_lmap[SLJIT_TEMPORARY_EREG2]);
+		}
+#endif
+
+#ifndef _WIN64
+		if (args > 0) {
+			*inst++ = REX_W;
+			*inst++ = MOV_r_rm;
+			*inst++ = MOD_REG | (reg_map[SLJIT_SAVED_REG1] << 3) | 0x7 /* rdi */;
+		}
+		if (args > 1) {
+			*inst++ = REX_W | REX_R;
+			*inst++ = MOV_r_rm;
+			*inst++ = MOD_REG | (reg_lmap[SLJIT_SAVED_REG2] << 3) | 0x6 /* rsi */;
+		}
+		if (args > 2) {
+			*inst++ = REX_W | REX_R;
+			*inst++ = MOV_r_rm;
+			*inst++ = MOD_REG | (reg_lmap[SLJIT_SAVED_REG3] << 3) | 0x2 /* rdx */;
+		}
+#else
+		if (args > 0) {
+			*inst++ = REX_W;
+			*inst++ = MOV_r_rm;
+			*inst++ = MOD_REG | (reg_map[SLJIT_SAVED_REG1] << 3) | 0x1 /* rcx */;
+		}
+		if (args > 1) {
+			*inst++ = REX_W;
+			*inst++ = MOV_r_rm;
+			*inst++ = MOD_REG | (reg_map[SLJIT_SAVED_REG2] << 3) | 0x2 /* rdx */;
+		}
+		if (args > 2) {
+			*inst++ = REX_W | REX_B;
+			*inst++ = MOV_r_rm;
+			*inst++ = MOD_REG | (reg_map[SLJIT_SAVED_REG3] << 3) | 0x0 /* r8 */;
+		}
+#endif
+	}
+
+	local_size = ((local_size + FIXED_LOCALS_OFFSET + pushed_size + 16 - 1) & ~(16 - 1)) - pushed_size;
+	compiler->local_size = local_size;
+#ifdef _WIN64
+	if (local_size > 1024) {
+		/* Allocate stack for the callback, which grows the stack. */
+		inst = (sljit_ub*)ensure_buf(compiler, 1 + 4 + (3 + sizeof(sljit_si)));
+		FAIL_IF(!inst);
+		INC_SIZE(4 + (3 + sizeof(sljit_si)));
+		*inst++ = REX_W;
+		*inst++ = GROUP_BINARY_83;
+		*inst++ = MOD_REG | SUB | 4;
+		/* Pushed size must be divisible by 8. */
+		SLJIT_ASSERT(!(pushed_size & 0x7));
+		if (pushed_size & 0x8) {
+			*inst++ = 5 * sizeof(sljit_sw);
+			local_size -= 5 * sizeof(sljit_sw);
+		} else {
+			*inst++ = 4 * sizeof(sljit_sw);
+			local_size -= 4 * sizeof(sljit_sw);
+		}
+		/* Second instruction */
+		SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SCRATCH_REG1] < 8, temporary_reg1_is_loreg);
+		*inst++ = REX_W;
+		*inst++ = MOV_rm_i32;
+		*inst++ = MOD_REG | reg_lmap[SLJIT_SCRATCH_REG1];
+		*(sljit_si*)inst = local_size;
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+		compiler->skip_checks = 1;
+#endif
+		FAIL_IF(sljit_emit_ijump(compiler, SLJIT_CALL1, SLJIT_IMM, SLJIT_FUNC_OFFSET(sljit_grow_stack)));
+	}
+#endif
+	SLJIT_ASSERT(local_size > 0);
+	if (local_size <= 127) {
+		inst = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+		FAIL_IF(!inst);
+		INC_SIZE(4);
+		*inst++ = REX_W;
+		*inst++ = GROUP_BINARY_83;
+		*inst++ = MOD_REG | SUB | 4;
+		*inst++ = local_size;
+	}
+	else {
+		inst = (sljit_ub*)ensure_buf(compiler, 1 + 7);
+		FAIL_IF(!inst);
+		INC_SIZE(7);
+		*inst++ = REX_W;
+		*inst++ = GROUP_BINARY_81;
+		*inst++ = MOD_REG | SUB | 4;
+		*(sljit_si*)inst = local_size;
+		inst += sizeof(sljit_si);
+	}
+#ifdef _WIN64
+	/* Save xmm6 with MOVAPS instruction. */
+	inst = (sljit_ub*)ensure_buf(compiler, 1 + 5);
+	FAIL_IF(!inst);
+	INC_SIZE(5);
+	*inst++ = GROUP_0F;
+	*(sljit_si*)inst = 0x20247429;
+#endif
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, sljit_si args, sljit_si scratches, sljit_si saveds, sljit_si local_size)
+{
+	sljit_si pushed_size;
+
+	CHECK_ERROR_VOID();
+	check_sljit_set_context(compiler, args, scratches, saveds, local_size);
+
+	compiler->scratches = scratches;
+	compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	/* Including the return address saved by the call instruction. */
+	pushed_size = (saveds + 1) * sizeof(sljit_sw);
+#ifdef _WIN64
+	if (scratches >= 5)
+		pushed_size += sizeof(sljit_sw);
+#endif
+	compiler->local_size = ((local_size + FIXED_LOCALS_OFFSET + pushed_size + 16 - 1) & ~(16 - 1)) - pushed_size;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_return(struct sljit_compiler *compiler, sljit_si op, sljit_si src, sljit_sw srcw)
+{
+	sljit_si size;
+	sljit_ub *inst;
+
+	CHECK_ERROR();
+	check_sljit_emit_return(compiler, op, src, srcw);
+
+	compiler->flags_saved = 0;
+	FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
+
+#ifdef _WIN64
+	/* Restore xmm6 with MOVAPS instruction. */
+	inst = (sljit_ub*)ensure_buf(compiler, 1 + 5);
+	FAIL_IF(!inst);
+	INC_SIZE(5);
+	*inst++ = GROUP_0F;
+	*(sljit_si*)inst = 0x20247428;
+#endif
+	SLJIT_ASSERT(compiler->local_size > 0);
+	if (compiler->local_size <= 127) {
+		inst = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+		FAIL_IF(!inst);
+		INC_SIZE(4);
+		*inst++ = REX_W;
+		*inst++ = GROUP_BINARY_83;
+		*inst++ = MOD_REG | ADD | 4;
+		*inst = compiler->local_size;
+	}
+	else {
+		inst = (sljit_ub*)ensure_buf(compiler, 1 + 7);
+		FAIL_IF(!inst);
+		INC_SIZE(7);
+		*inst++ = REX_W;
+		*inst++ = GROUP_BINARY_81;
+		*inst++ = MOD_REG | ADD | 4;
+		*(sljit_si*)inst = compiler->local_size;
+	}
+
+	size = 1 + compiler->saveds;
+#ifndef _WIN64
+	if (compiler->saveds >= 2)
+		size += compiler->saveds - 1;
+#else
+	if (compiler->saveds >= 4)
+		size += compiler->saveds - 3;
+	if (compiler->scratches >= 5)
+		size += (5 - 4) * 2;
+#endif
+	inst = (sljit_ub*)ensure_buf(compiler, 1 + size);
+	FAIL_IF(!inst);
+
+	INC_SIZE(size);
+
+#ifdef _WIN64
+	if (compiler->scratches >= 5) {
+		*inst++ = REX_B;
+		POP_REG(reg_lmap[SLJIT_TEMPORARY_EREG2]);
+	}
+#endif
+	if (compiler->saveds >= 1)
+		POP_REG(reg_map[SLJIT_SAVED_REG1]);
+	if (compiler->saveds >= 2) {
+#ifndef _WIN64
+		*inst++ = REX_B;
+#endif
+		POP_REG(reg_lmap[SLJIT_SAVED_REG2]);
+	}
+	if (compiler->saveds >= 3) {
+#ifndef _WIN64
+		*inst++ = REX_B;
+#endif
+		POP_REG(reg_lmap[SLJIT_SAVED_REG3]);
+	}
+	if (compiler->saveds >= 4) {
+		*inst++ = REX_B;
+		POP_REG(reg_lmap[SLJIT_SAVED_EREG1]);
+	}
+	if (compiler->saveds >= 5) {
+		*inst++ = REX_B;
+		POP_REG(reg_lmap[SLJIT_SAVED_EREG2]);
+	}
+
+	RET();
+	return SLJIT_SUCCESS;
+}
+
+/* --------------------------------------------------------------------- */
+/*  Operators                                                            */
+/* --------------------------------------------------------------------- */
+
+static sljit_si emit_do_imm32(struct sljit_compiler *compiler, sljit_ub rex, sljit_ub opcode, sljit_sw imm)
+{
+	sljit_ub *inst;
+	sljit_si length = 1 + (rex ? 1 : 0) + sizeof(sljit_si);
+
+	inst = (sljit_ub*)ensure_buf(compiler, 1 + length);
+	FAIL_IF(!inst);
+	INC_SIZE(length);
+	if (rex)
+		*inst++ = rex;
+	*inst++ = opcode;
+	*(sljit_si*)inst = imm;
+	return SLJIT_SUCCESS;
+}
+
+static sljit_ub* emit_x86_instruction(struct sljit_compiler *compiler, sljit_si size,
+	/* The register or immediate operand. */
+	sljit_si a, sljit_sw imma,
+	/* The general operand (not immediate). */
+	sljit_si b, sljit_sw immb)
+{
+	sljit_ub *inst;
+	sljit_ub *buf_ptr;
+	sljit_ub rex = 0;
+	sljit_si flags = size & ~0xf;
+	sljit_si inst_size;
+
+	/* The immediate operand must be 32 bit. */
+	SLJIT_ASSERT(!(a & SLJIT_IMM) || compiler->mode32 || IS_HALFWORD(imma));
+	/* Both cannot be switched on. */
+	SLJIT_ASSERT((flags & (EX86_BIN_INS | EX86_SHIFT_INS)) != (EX86_BIN_INS | EX86_SHIFT_INS));
+	/* Size flags not allowed for typed instructions. */
+	SLJIT_ASSERT(!(flags & (EX86_BIN_INS | EX86_SHIFT_INS)) || (flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) == 0);
+	/* Both size flags cannot be switched on. */
+	SLJIT_ASSERT((flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) != (EX86_BYTE_ARG | EX86_HALF_ARG));
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+	/* SSE2 and immediate is not possible. */
+	SLJIT_ASSERT(!(a & SLJIT_IMM) || !(flags & EX86_SSE2));
+	SLJIT_ASSERT((flags & (EX86_PREF_F2 | EX86_PREF_F3)) != (EX86_PREF_F2 | EX86_PREF_F3)
+		&& (flags & (EX86_PREF_F2 | EX86_PREF_66)) != (EX86_PREF_F2 | EX86_PREF_66)
+		&& (flags & (EX86_PREF_F3 | EX86_PREF_66)) != (EX86_PREF_F3 | EX86_PREF_66));
+#endif
+
+	size &= 0xf;
+	inst_size = size;
+
+	if ((b & SLJIT_MEM) && !(b & 0xf0) && NOT_HALFWORD(immb)) {
+		if (emit_load_imm64(compiler, TMP_REG3, immb))
+			return NULL;
+		immb = 0;
+		if (b & 0xf)
+			b |= TMP_REG3 << 4;
+		else
+			b |= TMP_REG3;
+	}
+
+	if (!compiler->mode32 && !(flags & EX86_NO_REXW))
+		rex |= REX_W;
+	else if (flags & EX86_REX)
+		rex |= REX;
+
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+	if (flags & (EX86_PREF_F2 | EX86_PREF_F3))
+		inst_size++;
+#endif
+	if (flags & EX86_PREF_66)
+		inst_size++;
+
+	/* Calculate size of b. */
+	inst_size += 1; /* mod r/m byte. */
+	if (b & SLJIT_MEM) {
+		if ((b & 0x0f) == SLJIT_UNUSED)
+			inst_size += 1 + sizeof(sljit_si); /* SIB byte required to avoid RIP based addressing. */
+		else {
+			if (reg_map[b & 0x0f] >= 8)
+				rex |= REX_B;
+			if (immb != 0 && !(b & 0xf0)) {
+				/* Immediate operand. */
+				if (immb <= 127 && immb >= -128)
+					inst_size += sizeof(sljit_sb);
+				else
+					inst_size += sizeof(sljit_si);
+			}
+		}
+
+		if ((b & 0xf) == SLJIT_LOCALS_REG && !(b & 0xf0))
+			b |= SLJIT_LOCALS_REG << 4;
+
+		if ((b & 0xf0) != SLJIT_UNUSED) {
+			inst_size += 1; /* SIB byte. */
+			if (reg_map[(b >> 4) & 0x0f] >= 8)
+				rex |= REX_X;
+		}
+	}
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+	else if (!(flags & EX86_SSE2) && reg_map[b] >= 8)
+		rex |= REX_B;
+#else
+	else if (reg_map[b] >= 8)
+		rex |= REX_B;
+#endif
+
+	if (a & SLJIT_IMM) {
+		if (flags & EX86_BIN_INS) {
+			if (imma <= 127 && imma >= -128) {
+				inst_size += 1;
+				flags |= EX86_BYTE_ARG;
+			} else
+				inst_size += 4;
+		}
+		else if (flags & EX86_SHIFT_INS) {
+			imma &= compiler->mode32 ? 0x1f : 0x3f;
+			if (imma != 1) {
+				inst_size ++;
+				flags |= EX86_BYTE_ARG;
+			}
+		} else if (flags & EX86_BYTE_ARG)
+			inst_size++;
+		else if (flags & EX86_HALF_ARG)
+			inst_size += sizeof(short);
+		else
+			inst_size += sizeof(sljit_si);
+	}
+	else {
+		SLJIT_ASSERT(!(flags & EX86_SHIFT_INS) || a == SLJIT_PREF_SHIFT_REG);
+		/* reg_map[SLJIT_PREF_SHIFT_REG] is less than 8. */
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+		if (!(flags & EX86_SSE2) && reg_map[a] >= 8)
+			rex |= REX_R;
+#else
+		if (reg_map[a] >= 8)
+			rex |= REX_R;
+#endif
+	}
+
+	if (rex)
+		inst_size++;
+
+	inst = (sljit_ub*)ensure_buf(compiler, 1 + inst_size);
+	PTR_FAIL_IF(!inst);
+
+	/* Encoding the byte. */
+	INC_SIZE(inst_size);
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+	if (flags & EX86_PREF_F2)
+		*inst++ = 0xf2;
+	if (flags & EX86_PREF_F3)
+		*inst++ = 0xf3;
+#endif
+	if (flags & EX86_PREF_66)
+		*inst++ = 0x66;
+	if (rex)
+		*inst++ = rex;
+	buf_ptr = inst + size;
+
+	/* Encode mod/rm byte. */
+	if (!(flags & EX86_SHIFT_INS)) {
+		if ((flags & EX86_BIN_INS) && (a & SLJIT_IMM))
+			*inst = (flags & EX86_BYTE_ARG) ? GROUP_BINARY_83 : GROUP_BINARY_81;
+
+		if ((a & SLJIT_IMM) || (a == 0))
+			*buf_ptr = 0;
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+		else if (!(flags & EX86_SSE2))
+			*buf_ptr = reg_lmap[a] << 3;
+		else
+			*buf_ptr = a << 3;
+#else
+		else
+			*buf_ptr = reg_lmap[a] << 3;
+#endif
+	}
+	else {
+		if (a & SLJIT_IMM) {
+			if (imma == 1)
+				*inst = GROUP_SHIFT_1;
+			else
+				*inst = GROUP_SHIFT_N;
+		} else
+			*inst = GROUP_SHIFT_CL;
+		*buf_ptr = 0;
+	}
+
+	if (!(b & SLJIT_MEM))
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+		*buf_ptr++ |= MOD_REG + ((!(flags & EX86_SSE2)) ? reg_lmap[b] : b);
+#else
+		*buf_ptr++ |= MOD_REG + reg_lmap[b];
+#endif
+	else if ((b & 0x0f) != SLJIT_UNUSED) {
+		if ((b & 0xf0) == SLJIT_UNUSED || (b & 0xf0) == (SLJIT_LOCALS_REG << 4)) {
+			if (immb != 0) {
+				if (immb <= 127 && immb >= -128)
+					*buf_ptr |= 0x40;
+				else
+					*buf_ptr |= 0x80;
+			}
+
+			if ((b & 0xf0) == SLJIT_UNUSED)
+				*buf_ptr++ |= reg_lmap[b & 0x0f];
+			else {
+				*buf_ptr++ |= 0x04;
+				*buf_ptr++ = reg_lmap[b & 0x0f] | (reg_lmap[(b >> 4) & 0x0f] << 3);
+			}
+
+			if (immb != 0) {
+				if (immb <= 127 && immb >= -128)
+					*buf_ptr++ = immb; /* 8 bit displacement. */
+				else {
+					*(sljit_si*)buf_ptr = immb; /* 32 bit displacement. */
+					buf_ptr += sizeof(sljit_si);
+				}
+			}
+		}
+		else {
+			*buf_ptr++ |= 0x04;
+			*buf_ptr++ = reg_lmap[b & 0x0f] | (reg_lmap[(b >> 4) & 0x0f] << 3) | (immb << 6);
+		}
+	}
+	else {
+		*buf_ptr++ |= 0x04;
+		*buf_ptr++ = 0x25;
+		*(sljit_si*)buf_ptr = immb; /* 32 bit displacement. */
+		buf_ptr += sizeof(sljit_si);
+	}
+
+	if (a & SLJIT_IMM) {
+		if (flags & EX86_BYTE_ARG)
+			*buf_ptr = imma;
+		else if (flags & EX86_HALF_ARG)
+			*(short*)buf_ptr = imma;
+		else if (!(flags & EX86_SHIFT_INS))
+			*(sljit_si*)buf_ptr = imma;
+	}
+
+	return !(flags & EX86_SHIFT_INS) ? inst : (inst + 1);
+}
+
+/* --------------------------------------------------------------------- */
+/*  Call / return instructions                                           */
+/* --------------------------------------------------------------------- */
+
+static SLJIT_INLINE sljit_si call_with_args(struct sljit_compiler *compiler, sljit_si type)
+{
+	sljit_ub *inst;
+
+#ifndef _WIN64
+	SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SCRATCH_REG2] == 6 && reg_map[SLJIT_SCRATCH_REG1] < 8 && reg_map[SLJIT_SCRATCH_REG3] < 8, args_registers);
+
+	inst = (sljit_ub*)ensure_buf(compiler, 1 + ((type < SLJIT_CALL3) ? 3 : 6));
+	FAIL_IF(!inst);
+	INC_SIZE((type < SLJIT_CALL3) ? 3 : 6);
+	if (type >= SLJIT_CALL3) {
+		*inst++ = REX_W;
+		*inst++ = MOV_r_rm;
+		*inst++ = MOD_REG | (0x2 /* rdx */ << 3) | reg_lmap[SLJIT_SCRATCH_REG3];
+	}
+	*inst++ = REX_W;
+	*inst++ = MOV_r_rm;
+	*inst++ = MOD_REG | (0x7 /* rdi */ << 3) | reg_lmap[SLJIT_SCRATCH_REG1];
+#else
+	SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SCRATCH_REG2] == 2 && reg_map[SLJIT_SCRATCH_REG1] < 8 && reg_map[SLJIT_SCRATCH_REG3] < 8, args_registers);
+
+	inst = (sljit_ub*)ensure_buf(compiler, 1 + ((type < SLJIT_CALL3) ? 3 : 6));
+	FAIL_IF(!inst);
+	INC_SIZE((type < SLJIT_CALL3) ? 3 : 6);
+	if (type >= SLJIT_CALL3) {
+		*inst++ = REX_W | REX_R;
+		*inst++ = MOV_r_rm;
+		*inst++ = MOD_REG | (0x0 /* r8 */ << 3) | reg_lmap[SLJIT_SCRATCH_REG3];
+	}
+	*inst++ = REX_W;
+	*inst++ = MOV_r_rm;
+	*inst++ = MOD_REG | (0x1 /* rcx */ << 3) | reg_lmap[SLJIT_SCRATCH_REG1];
+#endif
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw)
+{
+	sljit_ub *inst;
+
+	CHECK_ERROR();
+	check_sljit_emit_fast_enter(compiler, dst, dstw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	/* For UNUSED dst. Uncommon, but possible. */
+	if (dst == SLJIT_UNUSED)
+		dst = TMP_REGISTER;
+
+	if (dst <= TMP_REGISTER) {
+		if (reg_map[dst] < 8) {
+			inst = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+			FAIL_IF(!inst);
+			INC_SIZE(1);
+			POP_REG(reg_lmap[dst]);
+			return SLJIT_SUCCESS;
+		}
+
+		inst = (sljit_ub*)ensure_buf(compiler, 1 + 2);
+		FAIL_IF(!inst);
+		INC_SIZE(2);
+		*inst++ = REX_B;
+		POP_REG(reg_lmap[dst]);
+		return SLJIT_SUCCESS;
+	}
+
+	/* REX_W is not necessary (src is not immediate). */
+	compiler->mode32 = 1;
+	inst = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw);
+	FAIL_IF(!inst);
+	*inst++ = POP_rm;
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_si src, sljit_sw srcw)
+{
+	sljit_ub *inst;
+
+	CHECK_ERROR();
+	check_sljit_emit_fast_return(compiler, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	if ((src & SLJIT_IMM) && NOT_HALFWORD(srcw)) {
+		FAIL_IF(emit_load_imm64(compiler, TMP_REGISTER, srcw));
+		src = TMP_REGISTER;
+	}
+
+	if (src <= TMP_REGISTER) {
+		if (reg_map[src] < 8) {
+			inst = (sljit_ub*)ensure_buf(compiler, 1 + 1 + 1);
+			FAIL_IF(!inst);
+
+			INC_SIZE(1 + 1);
+			PUSH_REG(reg_lmap[src]);
+		}
+		else {
+			inst = (sljit_ub*)ensure_buf(compiler, 1 + 2 + 1);
+			FAIL_IF(!inst);
+
+			INC_SIZE(2 + 1);
+			*inst++ = REX_B;
+			PUSH_REG(reg_lmap[src]);
+		}
+	}
+	else if (src & SLJIT_MEM) {
+		/* REX_W is not necessary (src is not immediate). */
+		compiler->mode32 = 1;
+		inst = emit_x86_instruction(compiler, 1, 0, 0, src, srcw);
+		FAIL_IF(!inst);
+		*inst++ = GROUP_FF;
+		*inst |= PUSH_rm;
+
+		inst = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+		FAIL_IF(!inst);
+		INC_SIZE(1);
+	}
+	else {
+		SLJIT_ASSERT(IS_HALFWORD(srcw));
+		/* SLJIT_IMM. */
+		inst = (sljit_ub*)ensure_buf(compiler, 1 + 5 + 1);
+		FAIL_IF(!inst);
+
+		INC_SIZE(5 + 1);
+		*inst++ = PUSH_i32;
+		*(sljit_si*)inst = srcw;
+		inst += sizeof(sljit_si);
+	}
+
+	RET();
+	return SLJIT_SUCCESS;
+}
+
+
+/* --------------------------------------------------------------------- */
+/*  Extend input                                                         */
+/* --------------------------------------------------------------------- */
+
+static sljit_si emit_mov_int(struct sljit_compiler *compiler, sljit_si sign,
+	sljit_si dst, sljit_sw dstw,
+	sljit_si src, sljit_sw srcw)
+{
+	sljit_ub* inst;
+	sljit_si dst_r;
+
+	compiler->mode32 = 0;
+
+	if (dst == SLJIT_UNUSED && !(src & SLJIT_MEM))
+		return SLJIT_SUCCESS; /* Empty instruction. */
+
+	if (src & SLJIT_IMM) {
+		if (dst <= TMP_REGISTER) {
+			if (sign || ((sljit_uw)srcw <= 0x7fffffff)) {
+				inst = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_sw)(sljit_si)srcw, dst, dstw);
+				FAIL_IF(!inst);
+				*inst = MOV_rm_i32;
+				return SLJIT_SUCCESS;
+			}
+			return emit_load_imm64(compiler, dst, srcw);
+		}
+		compiler->mode32 = 1;
+		inst = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_sw)(sljit_si)srcw, dst, dstw);
+		FAIL_IF(!inst);
+		*inst = MOV_rm_i32;
+		compiler->mode32 = 0;
+		return SLJIT_SUCCESS;
+	}
+
+	dst_r = (dst <= TMP_REGISTER) ? dst : TMP_REGISTER;
+
+	if ((dst & SLJIT_MEM) && (src <= TMP_REGISTER))
+		dst_r = src;
+	else {
+		if (sign) {
+			inst = emit_x86_instruction(compiler, 1, dst_r, 0, src, srcw);
+			FAIL_IF(!inst);
+			*inst++ = MOVSXD_r_rm;
+		} else {
+			compiler->mode32 = 1;
+			FAIL_IF(emit_mov(compiler, dst_r, 0, src, srcw));
+			compiler->mode32 = 0;
+		}
+	}
+
+	if (dst & SLJIT_MEM) {
+		compiler->mode32 = 1;
+		inst = emit_x86_instruction(compiler, 1, dst_r, 0, dst, dstw);
+		FAIL_IF(!inst);
+		*inst = MOV_rm_r;
+		compiler->mode32 = 0;
+	}
+
+	return SLJIT_SUCCESS;
+}