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2002 lines (1774 loc) · 57.1 KB
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/*
* 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.
*/
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include "sljitLir.h"
#define CHECK_ERROR() \
do { \
if (compiler->error) \
return compiler->error; \
} while (0)
#define CHECK_ERROR_PTR() \
do { \
if (compiler->error) \
return NULL; \
} while (0)
#define FAIL_IF(expr) \
do { \
if (expr) \
return compiler->error; \
} while (0)
#define PTR_FAIL_IF_NULL(ptr) \
do { \
if (!(ptr)) { \
compiler->error = SLJIT_ERR_ALLOC_FAILED; \
return NULL; \
} \
} while (0)
#define PTR_FAIL_WITH_EXEC_IF(ptr) \
do { \
if (!(ptr)) { \
compiler->error = SLJIT_ERR_EX_ALLOC_FAILED; \
return NULL; \
} \
} while (0)
#if !(defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
#define GET_OPCODE(op) \
((op) & ~(SLJIT_INT_OP | SLJIT_SET_E | SLJIT_SET_U | SLJIT_SET_S | SLJIT_SET_O | SLJIT_SET_C | SLJIT_KEEP_FLAGS))
#define GET_FLAGS(op) \
((op) & (SLJIT_SET_E | SLJIT_SET_U | SLJIT_SET_S | SLJIT_SET_O | SLJIT_SET_C))
#define GET_ALL_FLAGS(op) \
((op) & (SLJIT_INT_OP | SLJIT_SET_E | SLJIT_SET_U | SLJIT_SET_S | SLJIT_SET_O | SLJIT_SET_C | SLJIT_KEEP_FLAGS))
#define TYPE_CAST_NEEDED(op) \
(((op) >= SLJIT_MOV_UB && (op) <= SLJIT_MOV_SH) || ((op) >= SLJIT_MOVU_UB && (op) <= SLJIT_MOVU_SH))
#define BUF_SIZE 4096
#if (defined SLJIT_32BIT_ARCHITECTURE && SLJIT_32BIT_ARCHITECTURE)
#define ABUF_SIZE 2048
#else
#define ABUF_SIZE 4096
#endif
/* Parameter parsing. */
#define REG_MASK 0x3f
#define OFFS_REG(reg) (((reg) >> 8) & REG_MASK)
#define OFFS_REG_MASK (REG_MASK << 8)
#define TO_OFFS_REG(reg) ((reg) << 8)
/* When reg cannot be unused. */
#define FAST_IS_REG(reg) ((reg) <= REG_MASK)
/* When reg can be unused. */
#define SLOW_IS_REG(reg) ((reg) > 0 && (reg) <= REG_MASK)
/* Jump flags. */
#define JUMP_LABEL 0x1
#define JUMP_ADDR 0x2
/* SLJIT_REWRITABLE_JUMP is 0x1000. */
#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
# define PATCH_MB 0x4
# define PATCH_MW 0x8
#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
# define PATCH_MD 0x10
#endif
#endif
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
# define IS_BL 0x4
# define PATCH_B 0x8
#endif
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
# define CPOOL_SIZE 512
#endif
#if (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
# define IS_COND 0x04
# define IS_BL 0x08
/* conditional + imm8 */
# define PATCH_TYPE1 0x10
/* conditional + imm20 */
# define PATCH_TYPE2 0x20
/* IT + imm24 */
# define PATCH_TYPE3 0x30
/* imm11 */
# define PATCH_TYPE4 0x40
/* imm24 */
# define PATCH_TYPE5 0x50
/* BL + imm24 */
# define PATCH_BL 0x60
/* 0xf00 cc code for branches */
#endif
#if (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64)
# define IS_COND 0x004
# define IS_CBZ 0x008
# define IS_BL 0x010
# define PATCH_B 0x020
# define PATCH_COND 0x040
# define PATCH_ABS48 0x080
# define PATCH_ABS64 0x100
#endif
#if (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC)
# define IS_COND 0x004
# define IS_CALL 0x008
# define PATCH_B 0x010
# define PATCH_ABS_B 0x020
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
# define PATCH_ABS32 0x040
# define PATCH_ABS48 0x080
#endif
# define REMOVE_COND 0x100
#endif
#if (defined SLJIT_CONFIG_MIPS && SLJIT_CONFIG_MIPS)
# define IS_MOVABLE 0x004
# define IS_JAL 0x008
# define IS_CALL 0x010
# define IS_BIT26_COND 0x020
# define IS_BIT16_COND 0x040
# define IS_COND (IS_BIT26_COND | IS_BIT16_COND)
# define PATCH_B 0x080
# define PATCH_J 0x100
#if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
# define PATCH_ABS32 0x200
# define PATCH_ABS48 0x400
#endif
/* instruction types */
# define MOVABLE_INS 0
/* 1 - 31 last destination reg */
/* no destination (i.e: store) */
# define UNMOVABLE_INS 32
/* FPU status reg */
# define FCSR_FCC 33
#endif
#if (defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX)
# define IS_JAL 0x04
# define IS_COND 0x08
# define PATCH_B 0x10
# define PATCH_J 0x20
#endif
#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
# define IS_MOVABLE 0x04
# define IS_COND 0x08
# define IS_CALL 0x10
# define PATCH_B 0x20
# define PATCH_CALL 0x40
/* instruction types */
# define MOVABLE_INS 0
/* 1 - 31 last destination reg */
/* no destination (i.e: store) */
# define UNMOVABLE_INS 32
# define DST_INS_MASK 0xff
/* ICC_SET is the same as SET_FLAGS. */
# define ICC_IS_SET (1 << 23)
# define FCC_IS_SET (1 << 24)
#endif
/* Stack management. */
#define GET_SAVED_REGS_SIZE(scratches, saveds, extra) \
(((scratches < SLJIT_NUM_SCRATCH_REGS ? 0 : (scratches - SLJIT_NUM_SCRATCH_REGS)) + \
(saveds < SLJIT_NUM_SAVED_REGS ? saveds : SLJIT_NUM_SAVED_REGS) + \
extra) * sizeof(long))
#define ADJUST_LOCAL_OFFSET(p, i) \
if ((p) == (SLJIT_MEM1(SLJIT_SP))) \
(i) += SLJIT_LOCALS_OFFSET;
#endif /* !(defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) */
/* Utils can still be used even if SLJIT_CONFIG_UNSUPPORTED is set. */
#include "sljitUtils.c"
#if !(defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
#if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
#include "sljitExecAllocator.c"
#endif
/* Argument checking features. */
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
/* Returns with error when an invalid argument is passed. */
#define CHECK_ARGUMENT(x) \
do { \
if (!(x)) \
return 1; \
} while (0)
#define CHECK_RETURN_TYPE int
#define CHECK_RETURN_OK return 0
#define CHECK(x) \
do { \
if (x) { \
compiler->error = SLJIT_ERR_BAD_ARGUMENT; \
return SLJIT_ERR_BAD_ARGUMENT; \
} \
} while (0)
#define CHECK_PTR(x) \
do { \
if (x) { \
compiler->error = SLJIT_ERR_BAD_ARGUMENT; \
return NULL; \
} \
} while (0)
#define CHECK_REG_INDEX(x) \
do { \
if (x) { \
return -2; \
} \
} while (0)
#elif (defined SLJIT_DEBUG && SLJIT_DEBUG)
/* Assertion failure occures if an invalid argument is passed. */
#undef SLJIT_ARGUMENT_CHECKS
#define SLJIT_ARGUMENT_CHECKS 1
#define CHECK_ARGUMENT(x) SLJIT_ASSERT(x)
#define CHECK_RETURN_TYPE void
#define CHECK_RETURN_OK return
#define CHECK(x) x
#define CHECK_PTR(x) x
#define CHECK_REG_INDEX(x) x
#elif (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
/* Arguments are not checked. */
#define CHECK_RETURN_TYPE void
#define CHECK_RETURN_OK return
#define CHECK(x) x
#define CHECK_PTR(x) x
#define CHECK_REG_INDEX(x) x
#else
/* Arguments are not checked. */
#define CHECK(x)
#define CHECK_PTR(x)
#define CHECK_REG_INDEX(x)
#endif /* SLJIT_ARGUMENT_CHECKS */
/* --------------------------------------------------------------------- */
/* Public functions */
/* --------------------------------------------------------------------- */
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
#define SLJIT_NEEDS_COMPILER_INIT 1
static int compiler_initialized = 0;
/* A thread safe initialization. */
static void init_compiler(void);
#endif
struct sljit_compiler* sljit_create_compiler(void)
{
struct sljit_compiler *compiler = malloc(sizeof(struct sljit_compiler));
if (!compiler)
return NULL;
memset(compiler, 0, sizeof(struct sljit_compiler));
SLJIT_COMPILE_ASSERT(
sizeof(s_char) == 1 && sizeof(u_char) == 1
&& sizeof(short) == 2 && sizeof(unsigned short) == 2
&& sizeof(int) == 4 && sizeof(unsigned int) == 4
&& (sizeof(uintptr_t) == 4 || sizeof(uintptr_t) == 8)
&& sizeof(uintptr_t) <= sizeof(long)
&& (sizeof(long) == 4 || sizeof(long) == 8)
&& (sizeof(unsigned long) == 4 || sizeof(unsigned long) == 8),
invalid_integer_types);
SLJIT_COMPILE_ASSERT(SLJIT_INT_OP == SLJIT_SINGLE_OP,
int_op_and_single_op_must_be_the_same);
SLJIT_COMPILE_ASSERT(SLJIT_REWRITABLE_JUMP != SLJIT_SINGLE_OP,
rewritable_jump_and_single_op_must_not_be_the_same);
/* Only the non-zero members must be set. */
compiler->error = SLJIT_SUCCESS;
compiler->buf = malloc(BUF_SIZE);
compiler->abuf = malloc(ABUF_SIZE);
if (!compiler->buf || !compiler->abuf) {
if (compiler->buf)
free(compiler->buf);
if (compiler->abuf)
free(compiler->abuf);
free(compiler);
return NULL;
}
compiler->buf->next = NULL;
compiler->buf->used_size = 0;
compiler->abuf->next = NULL;
compiler->abuf->used_size = 0;
compiler->scratches = -1;
compiler->saveds = -1;
compiler->fscratches = -1;
compiler->fsaveds = -1;
compiler->local_size = -1;
#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
compiler->args = -1;
#endif
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
compiler->cpool = malloc(CPOOL_SIZE * sizeof(unsigned long) + CPOOL_SIZE * sizeof(u_char));
if (!compiler->cpool) {
free(compiler->buf);
free(compiler->abuf);
free(compiler);
return NULL;
}
compiler->cpool_unique = (u_char*)(compiler->cpool + CPOOL_SIZE);
compiler->cpool_diff = 0xffffffff;
#endif
#if (defined SLJIT_CONFIG_MIPS && SLJIT_CONFIG_MIPS)
compiler->delay_slot = UNMOVABLE_INS;
#endif
#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
compiler->delay_slot = UNMOVABLE_INS;
#endif
#if (defined SLJIT_NEEDS_COMPILER_INIT && SLJIT_NEEDS_COMPILER_INIT)
if (!compiler_initialized) {
init_compiler();
compiler_initialized = 1;
}
#endif
return compiler;
}
void sljit_free_compiler(struct sljit_compiler *compiler)
{
struct sljit_memory_fragment *buf;
struct sljit_memory_fragment *curr;
buf = compiler->buf;
while (buf != NULL) {
curr = buf;
buf = buf->next;
free(curr);
}
buf = compiler->abuf;
while (buf != NULL) {
curr = buf;
buf = buf->next;
free(curr);
}
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
free(compiler->cpool);
#endif
free(compiler);
}
#if (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
void sljit_free_code(void* code)
{
/* Remove thumb mode flag. */
SLJIT_FREE_EXEC((void*)((unsigned long)code & ~0x1));
}
#elif (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
void sljit_free_code(void* code)
{
/* Resolve indirection. */
code = (void*)(*(unsigned long*)code);
SLJIT_FREE_EXEC(code);
}
#else
void sljit_free_code(void* code)
{
SLJIT_FREE_EXEC(code);
}
#endif
void sljit_set_label(struct sljit_jump *jump, struct sljit_label* label)
{
if (!!jump && !!label) {
jump->flags &= ~JUMP_ADDR;
jump->flags |= JUMP_LABEL;
jump->u.label = label;
}
}
void sljit_set_target(struct sljit_jump *jump, unsigned long target)
{
if (!!jump) {
jump->flags &= ~JUMP_LABEL;
jump->flags |= JUMP_ADDR;
jump->u.target = target;
}
}
/* --------------------------------------------------------------------- */
/* Private functions */
/* --------------------------------------------------------------------- */
static void* ensure_buf(struct sljit_compiler *compiler, unsigned long size)
{
u_char *ret;
struct sljit_memory_fragment *new_frag;
SLJIT_ASSERT(size <= 256);
if (compiler->buf->used_size + size <= (BUF_SIZE - (unsigned long)SLJIT_OFFSETOF(struct sljit_memory_fragment, memory))) {
ret = compiler->buf->memory + compiler->buf->used_size;
compiler->buf->used_size += size;
return ret;
}
new_frag = malloc(BUF_SIZE);
PTR_FAIL_IF_NULL(new_frag);
new_frag->next = compiler->buf;
compiler->buf = new_frag;
new_frag->used_size = size;
return new_frag->memory;
}
static void* ensure_abuf(struct sljit_compiler *compiler, unsigned long size)
{
u_char *ret;
struct sljit_memory_fragment *new_frag;
SLJIT_ASSERT(size <= 256);
if (compiler->abuf->used_size + size <= (ABUF_SIZE - (unsigned long)SLJIT_OFFSETOF(struct sljit_memory_fragment, memory))) {
ret = compiler->abuf->memory + compiler->abuf->used_size;
compiler->abuf->used_size += size;
return ret;
}
new_frag = malloc(ABUF_SIZE);
PTR_FAIL_IF_NULL(new_frag);
new_frag->next = compiler->abuf;
compiler->abuf = new_frag;
new_frag->used_size = size;
return new_frag->memory;
}
void* sljit_alloc_memory(struct sljit_compiler *compiler, int size)
{
CHECK_ERROR_PTR();
#if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
if (size <= 0 || size > 128)
return NULL;
size = (size + 7) & ~0x111;
#else
if (size <= 0 || size > 64)
return NULL;
size = (size + 3) & ~0x11;
#endif
return ensure_abuf(compiler, size);
}
static __inline void reverse_buf(struct sljit_compiler *compiler)
{
struct sljit_memory_fragment *buf = compiler->buf;
struct sljit_memory_fragment *prev = NULL;
struct sljit_memory_fragment *tmp;
do {
tmp = buf->next;
buf->next = prev;
prev = buf;
buf = tmp;
} while (buf != NULL);
compiler->buf = prev;
}
static __i
10BC8
nline void set_emit_enter(struct sljit_compiler *compiler,
int options, int args, int scratches, int saveds,
int fscratches, int fsaveds, int local_size)
{
(void)local_size;
compiler->options = options;
compiler->scratches = scratches;
compiler->saveds = saveds;
compiler->fscratches = fscratches;
compiler->fsaveds = fsaveds;
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
compiler->logical_local_size = local_size;
#endif
}
static __inline void set_set_context(struct sljit_compiler *compiler,
int options, int args, int scratches, int saveds,
int fscratches, int fsaveds, int local_size)
{
(void)local_size;
compiler->options = options;
compiler->scratches = scratches;
compiler->saveds = saveds;
compiler->fscratches = fscratches;
compiler->fsaveds = fsaveds;
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
compiler->logical_local_size = local_size;
#endif
}
static __inline void set_label(struct sljit_label *label, struct sljit_compiler *compiler)
{
label->next = NULL;
label->size = compiler->size;
if (compiler->last_label)
compiler->last_label->next = label;
else
compiler->labels = label;
compiler->last_label = label;
}
static __inline void set_jump(struct sljit_jump *jump, struct sljit_compiler *compiler, int flags)
{
jump->next = NULL;
jump->flags = flags;
if (compiler->last_jump)
compiler->last_jump->next = jump;
else
compiler->jumps = jump;
compiler->last_jump = jump;
}
static __inline void set_const(struct sljit_const *const_, struct sljit_compiler *compiler)
{
const_->next = NULL;
const_->addr = compiler->size;
if (compiler->last_const)
compiler->last_const->next = const_;
else
compiler->consts = const_;
compiler->last_const = const_;
}
#define ADDRESSING_DEPENDS_ON(exp, reg) \
(((exp) & SLJIT_MEM) && (((exp) & REG_MASK) == reg || OFFS_REG(exp) == reg))
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
#define FUNCTION_CHECK_OP() \
CHECK_ARGUMENT(!GET_FLAGS(op) || !(op & SLJIT_KEEP_FLAGS)); \
switch (GET_OPCODE(op)) { \
case SLJIT_NOT: \
case SLJIT_CLZ: \
case SLJIT_AND: \
case SLJIT_OR: \
case SLJIT_XOR: \
case SLJIT_SHL: \
case SLJIT_LSHR: \
case SLJIT_ASHR: \
CHECK_ARGUMENT(!(op & (SLJIT_SET_U | SLJIT_SET_S | SLJIT_SET_O | SLJIT_SET_C))); \
break; \
case SLJIT_NEG: \
CHECK_ARGUMENT(!(op & (SLJIT_SET_U | SLJIT_SET_S | SLJIT_SET_C))); \
break; \
case SLJIT_MUL: \
CHECK_ARGUMENT(!(op & (SLJIT_SET_E | SLJIT_SET_U | SLJIT_SET_S | SLJIT_SET_C))); \
break; \
case SLJIT_ADD: \
CHECK_ARGUMENT(!(op & (SLJIT_SET_U | SLJIT_SET_S))); \
break; \
case SLJIT_SUB: \
break; \
case SLJIT_ADDC: \
case SLJIT_SUBC: \
CHECK_ARGUMENT(!(op & (SLJIT_SET_E | SLJIT_SET_U | SLJIT_SET_S | SLJIT_SET_O))); \
break; \
case SLJIT_BREAKPOINT: \
case SLJIT_NOP: \
case SLJIT_LUMUL: \
case SLJIT_LSMUL: \
case SLJIT_MOV: \
case SLJIT_MOV_UI: \
case SLJIT_MOV_P: \
case SLJIT_MOVU: \
case SLJIT_MOVU_UI: \
case SLJIT_MOVU_P: \
/* Nothing allowed */ \
CHECK_ARGUMENT(!(op & (SLJIT_INT_OP | SLJIT_SET_E | SLJIT_SET_U | SLJIT_SET_S | SLJIT_SET_O | SLJIT_SET_C | SLJIT_KEEP_FLAGS))); \
break; \
default: \
/* Only SLJIT_INT_OP or SLJIT_SINGLE_OP is allowed. */ \
CHECK_ARGUMENT(!(op & (SLJIT_SET_E | SLJIT_SET_U | SLJIT_SET_S | SLJIT_SET_O | SLJIT_SET_C | SLJIT_KEEP_FLAGS))); \
break; \
}
#define FUNCTION_CHECK_FOP() \
CHECK_ARGUMENT(!GET_FLAGS(op) || !(op & SLJIT_KEEP_FLAGS)); \
switch (GET_OPCODE(op)) { \
case SLJIT_DCMP: \
CHECK_ARGUMENT(!(op & (SLJIT_SET_U | SLJIT_SET_O | SLJIT_SET_C | SLJIT_KEEP_FLAGS))); \
CHECK_ARGUMENT((op & (SLJIT_SET_E | SLJIT_SET_S))); \
break; \
default: \
/* Only SLJIT_INT_OP or SLJIT_SINGLE_OP is allowed. */ \
CHECK_ARGUMENT(!(op & (SLJIT_SET_E | SLJIT_SET_U | SLJIT_SET_S | SLJIT_SET_O | SLJIT_SET_C | SLJIT_KEEP_FLAGS))); \
break; \
}
#define FUNCTION_CHECK_IS_REG(r) \
(((r) >= SLJIT_R0 && (r) < (SLJIT_R0 + compiler->scratches)) || \
((r) > (SLJIT_S0 - compiler->saveds) && (r) <= SLJIT_S0))
#define FUNCTION_CHECK_IS_REG_OR_UNUSED(r) \
((r) == SLJIT_UNUSED || \
((r) >= SLJIT_R0 && (r) < (SLJIT_R0 + compiler->scratches)) || \
((r) > (SLJIT_S0 - compiler->saveds) && (r) <= SLJIT_S0))
#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
#define CHECK_NOT_VIRTUAL_REG(p) \
CHECK_ARGUMENT((p) < SLJIT_R3 || (p) > SLJIT_R6);
#else
#define CHECK_NOT_VIRTUAL_REG(p)
#endif
#define FUNCTION_CHECK_SRC(p, i) \
CHECK_ARGUMENT(compiler->scratches != -1 && compiler->saveds != -1); \
if (FUNCTION_CHECK_IS_REG(p)) \
CHECK_ARGUMENT((i) == 0); \
else if ((p) == SLJIT_IMM) \
; \
else if ((p) == (SLJIT_MEM1(SLJIT_SP))) \
CHECK_ARGUMENT((i) >= 0 && (i) < compiler->logical_local_size); \
else { \
CHECK_ARGUMENT((p) & SLJIT_MEM); \
CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG_OR_UNUSED((p) & REG_MASK)); \
CHECK_NOT_VIRTUAL_REG((p) & REG_MASK); \
if ((p) & OFFS_REG_MASK) { \
CHECK_ARGUMENT(((p) & REG_MASK) != SLJIT_UNUSED); \
CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG(OFFS_REG(p))); \
CHECK_NOT_VIRTUAL_REG(OFFS_REG(p)); \
CHECK_ARGUMENT(!((i) & ~0x3)); \
} \
CHECK_ARGUMENT(!((p) & ~(SLJIT_MEM | SLJIT_IMM | REG_MASK | OFFS_REG_MASK))); \
}
#define FUNCTION_CHECK_DST(p, i) \
CHECK_ARGUMENT(compiler->scratches != -1 && compiler->saveds != -1); \
if (FUNCTION_CHECK_IS_REG_OR_UNUSED(p)) \
CHECK_ARGUMENT((i) == 0); \
else if ((p) == (SLJIT_MEM1(SLJIT_SP))) \
CHECK_ARGUMENT((i) >= 0 && (i) < compiler->logical_local_size); \
else { \
CHECK_ARGUMENT((p) & SLJIT_MEM); \
CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG_OR_UNUSED((p) & REG_MASK)); \
CHECK_NOT_VIRTUAL_REG((p) & REG_MASK); \
if ((p) & OFFS_REG_MASK) { \
CHECK_ARGUMENT(((p) & REG_MASK) != SLJIT_UNUSED); \
CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG(OFFS_REG(p))); \
CHECK_NOT_VIRTUAL_REG(OFFS_REG(p)); \
CHECK_ARGUMENT(!((i) & ~0x3)); \
} \
CHECK_ARGUMENT(!((p) & ~(SLJIT_MEM | SLJIT_IMM | REG_MASK | OFFS_REG_MASK))); \
}
#define FUNCTION_FCHECK(p, i) \
CHECK_ARGUMENT(compiler->fscratches != -1 && compiler->fsaveds != -1); \
if (((p) >= SLJIT_FR0 && (p) < (SLJIT_FR0 + compiler->fscratches)) || \
((p) > (SLJIT_FS0 - compiler->fsaveds) && (p) <= SLJIT_FS0)) \
CHECK_ARGUMENT(i == 0); \
else if ((p) == (SLJIT_MEM1(SLJIT_SP))) \
CHECK_ARGUMENT((i) >= 0 && (i) < compiler->logical_local_size); \
else { \
CHECK_ARGUMENT((p) & SLJIT_MEM); \
CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG_OR_UNUSED((p) & REG_MASK)); \
CHECK_NOT_VIRTUAL_REG((p) & REG_MASK); \
if ((p) & OFFS_REG_MASK) { \
CHECK_ARGUMENT(((p) & REG_MASK) != SLJIT_UNUSED); \
CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG(OFFS_REG(p))); \
CHECK_NOT_VIRTUAL_REG(OFFS_REG(p)); \
CHECK_ARGUMENT(((p) & OFFS_REG_MASK) != TO_OFFS_REG(SLJIT_SP) && !(i & ~0x3)); \
} \
CHECK_ARGUMENT(!((p) & ~(SLJIT_MEM | SLJIT_IMM | REG_MASK | OFFS_REG_MASK))); \
}
#define FUNCTION_CHECK_OP1() \
if (GET_OPCODE(op) >= SLJIT_MOVU && GET_OPCODE(op) <= SLJIT_MOVU_P) { \
CHECK_ARGUMENT(!(src & SLJIT_MEM) || (src & REG_MASK) != SLJIT_SP); \
CHECK_ARGUMENT(!(dst & SLJIT_MEM) || (dst & REG_MASK) != SLJIT_SP); \
if ((src & SLJIT_MEM) && (src & REG_MASK)) \
CHECK_ARGUMENT((dst & REG_MASK) != (src & REG_MASK) && OFFS_REG(dst) != (src & REG_MASK)); \
}
#endif /* SLJIT_ARGUMENT_CHECKS */
#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
void sljit_compiler_verbose(struct sljit_compiler *compiler, FILE* verbose)
{
compiler->verbose = verbose;
}
#if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
#ifdef _WIN64
# define SLJIT_PRINT_D "I64"
#else
# define SLJIT_PRINT_D "l"
#endif
#else
# define SLJIT_PRINT_D ""
#endif
#define sljit_verbose_reg(compiler, r) \
do { \
if ((r) < (SLJIT_R0 + compiler->scratches)) \
fprintf(compiler->verbose, "r%d", (r) - SLJIT_R0); \
else \
fprintf(compiler->verbose, "s%d", SLJIT_NUM_REGS - (r)); \
} while (0)
#define sljit_verbose_param(compiler, p, i) \
if ((p) & SLJIT_IMM) \
fprintf(compiler->verbose, "#%" SLJIT_PRINT_D "d", (i)); \
else if ((p) & SLJIT_MEM) { \
if ((p) & REG_MASK) { \
fputc('[', compiler->verbose); \
sljit_verbose_reg(compiler, (p) & REG_MASK); \
if ((p) & OFFS_REG_MASK) { \
fprintf(compiler->verbose, " + "); \
sljit_verbose_reg(compiler, OFFS_REG(p)); \
if (i) \
fprintf(compiler->verbose, " * %d", 1 << (i)); \
} \
else if (i) \
fprintf(compiler->verbose, " + %" SLJIT_PRINT_D "d", (i)); \
fputc(']', compiler->verbose); \
} \
else \
fprintf(compiler->verbose, "[#%" SLJIT_PRINT_D "d]", (i)); \
} else if (p) \
sljit_verbose_reg(compiler, p); \
else \
fprintf(compiler->verbose, "unused");
#define sljit_verbose_fparam(compiler, p, i) \
if ((p) & SLJIT_MEM) { \
if ((p) & REG_MASK) { \
fputc('[', compiler->verbose); \
sljit_verbose_reg(compiler, (p) & REG_MASK); \
if ((p) & OFFS_REG_MASK) { \
fprintf(compiler->verbose, " + "); \
sljit_verbose_reg(compiler, OFFS_REG(p)); \
if (i) \
fprintf(compiler->verbose, "%d", 1 << (i)); \
} \
else if (i) \
fprintf(compiler->verbose, "%" SLJIT_PRINT_D "d", (i)); \
fputc(']', compiler->verbose); \
} \
else \
fprintf(compiler->verbose, "[#%" SLJIT_PRINT_D "d]", (i)); \
} \
else { \
if ((p) < (SLJIT_FR0 + compiler->fscratches)) \
fprintf(compiler->verbose, "fr%d", (p) - SLJIT_FR0); \
else \
fprintf(compiler->verbose, "fs%d", SLJIT_NUM_FLOAT_REGS - (p)); \
}
static const char* op0_names[] = {
(char*)"breakpoint", (char*)"nop",
(char*)"lumul", (char*)"lsmul", (char*)"ludiv", (char*)"lsdiv",
};
static const char* op1_names[] = {
(char*)"mov", (char*)"mov_ub", (char*)"mov_sb", (char*)"mov_uh",
(char*)"mov_sh", (char*)"mov_ui", (char*)"mov_si", (char*)"mov_p",
(char*)"movu", (char*)"movu_ub", (char*)"movu_sb", (char*)"movu_uh",
(char*)"movu_sh", (char*)"movu_ui", (char*)"movu_si", (char*)"movu_p",
(char*)"not", (char*)"neg", (char*)"clz",
};
static const char* op2_names[] = {
(char*)"add", (char*)"addc", (char*)"sub", (char*)"subc",
(char*)"mul", (char*)"and", (char*)"or", (char*)"xor",
(char*)"shl", (char*)"lshr", (char*)"ashr",
};
static const char* fop1_names[] = {
(char*)"mov", (char*)"conv", (char*)"conv", (char*)"conv",
(char*)"conv", (char*)"conv", (char*)"cmp", (char*)"neg",
(char*)"abs",
};
static const char* fop2_names[] = {
(char*)"add", (char*)"sub", (char*)"mul", (char*)"div"
};
#define JUMP_PREFIX(type) \
((type & 0xff) <= SLJIT_MUL_NOT_OVERFLOW ? ((type & SLJIT_INT_OP) ? "i_" : "") \
: ((type & 0xff) <= SLJIT_D_ORDERED ? ((type & SLJIT_SINGLE_OP) ? "s_" : "d_") : ""))
static char* jump_names[] = {
(char*)"equal", (char*)"not_equal",
(char*)"less", (char*)"greater_equal",
(char*)"greater", (char*)"less_equal",
(char*)"sig_less", (char*)"sig_greater_equal",
(char*)"sig_greater", (char*)"sig_less_equal",
(char*)"overflow", (char*)"not_overflow",
(char*)"mul_overflow", (char*)"mul_not_overflow",
(char*)"equal", (char*)"not_equal",
(char*)"less", (char*)"greater_equal",
(char*)"greater", (char*)"less_equal",
(char*)"unordered", (char*)"ordered",
(char*)"jump", (char*)"fast_call",
(char*)"call0", (char*)"call1", (char*)"call2", (char*)"call3"
};
#endif /* SLJIT_VERBOSE */
/* --------------------------------------------------------------------- */
/* Arch dependent */
/* --------------------------------------------------------------------- */
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS) \
|| (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
static __inline CHECK_RETURN_TYPE check_sljit_generate_code(struct sljit_compiler *compiler)
{
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
struct sljit_jump *jump;
#endif
(void)compiler;
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
CHECK_ARGUMENT(compiler->size > 0);
jump = compiler->jumps;
while (jump) {
/* All jumps have target. */
CHECK_ARGUMENT(jump->flags & (JUMP_LABEL | JUMP_ADDR));
jump = jump->next;
}
#endif
CHECK_RETURN_OK;
}
static __inline CHECK_RETURN_TYPE check_sljit_emit_enter(struct sljit_compiler *compiler,
int options, int args, int scratches, int saveds,
int fscratches, int fsaveds, int local_size)
{
(void)compiler;
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
CHECK_ARGUMENT(!(options & ~SLJIT_DOUBLE_ALIGNMENT));
CHECK_ARGUMENT(args >= 0 && args <= 3);
CHECK_ARGUMENT(scratches >= 0 && scratches <= SLJIT_NUM_REGS);
CHECK_ARGUMENT(saveds >= 0 && saveds <= SLJIT_NUM_REGS);
CHECK_ARGUMENT(scratches + saveds <= SLJIT_NUM_REGS);
CHECK_ARGUMENT(args <= saveds);
CHECK_ARGUMENT(fscratches >= 0 && fscratches <= SLJIT_NUM_FLOAT_REGS);
CHECK_ARGUMENT(fsaveds >= 0 && fsaveds <= SLJIT_NUM_FLOAT_REGS);
CHECK_ARGUMENT(fscratches + fsaveds <= SLJIT_NUM_FLOAT_REGS);
CHECK_ARGUMENT(local_size >= 0 && local_size <= SLJIT_MAX_LOCAL_SIZE);
#endif
#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
if (!!compiler->verbose)
fprintf(compiler->verbose, " enter options:none args:%d scratches:%d saveds:%d fscratches:%d fsaveds:%d local_size:%d\n",
args, scratches, saveds, fscratches, fsaveds, local_size);
#endif
CHECK_RETURN_OK;
}
static __inline CHECK_RETURN_TYPE check_sljit_set_context(struct sljit_compiler *compiler,
int options, int args, int scratches, int saveds,
int fscratches, int fsaveds, int local_size)
{
if (compiler->skip_checks) {
compiler->skip_checks = 0;
CHECK_RETURN_OK;
}
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
CHECK_ARGUMENT(!(options & ~SLJIT_DOUBLE_ALIGNMENT));
CHECK_ARGUMENT(args >= 0 && args <= 3);
CHECK_ARGUMENT(scratches >= 0 && scratches <= SLJIT_NUM_REGS);
CHECK_ARGUMENT(saveds >= 0 && saveds <= SLJIT_NUM_REGS);
CHECK_ARGUMENT(scratches + saveds <= SLJIT_NUM_REGS);
CHECK_ARGUMENT(args <= saveds);
CHECK_ARGUMENT(fscratches >= 0 && fscratches <= SLJIT_NUM_FLOAT_REGS);
CHECK_ARGUMENT(fsaveds >= 0 && fsaveds <= SLJIT_NUM_FLOAT_REGS);
CHECK_ARGUMENT(fscratches + fsaveds <= SLJIT_NUM_FLOAT_REGS);
CHECK_ARGUMENT(local_size >= 0 && local_size <= SLJIT_MAX_LOCAL_SIZE);
#endif
#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
if (!!compiler->verbose)
fprintf(compiler->verbose, " set_context options:none args:%d scratches:%d saveds:%d fscratches:%d fsaveds:%d local_size:%d\n",
args, scratches, saveds, fscratches, fsaveds, local_size);
#endif
CHECK_RETURN_OK;
}
static __inline CHECK_RETURN_TYPE check_sljit_emit_return(struct sljit_compiler *compiler, int op, int src, long srcw)
{
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
CHECK_ARGUMENT(compiler->scratches >= 0);
if (op != SLJIT_UNUSED) {
CHECK_ARGUMENT(op >= SLJIT_MOV && op <= SLJIT_MOV_P);
FUNCTION_CHECK_SRC(src, srcw);
}
else
CHECK_ARGUMENT(src == 0 && srcw == 0);
#endif
#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
if (!!compiler->verbose) {
if (op == SLJIT_UNUSED)
fprintf(compiler->verbose, " return\n");
else {
fprintf(compiler->verbose, " return.%s ", op1_names[op - SLJIT_OP1_BASE]);
sljit_verbose_param(compiler, src, srcw);
fprintf(compiler->verbose, "\n");
}
}
#endif
CHECK_RETURN_OK;
}
static __inline CHECK_RETURN_TYPE check_sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, long dstw)
{
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
FUNCTION_CHECK_DST(dst, dstw);
#endif
#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
if (!!compiler->verbose) {
fprintf(compiler->verbose, " fast_enter ");
sljit_verbose_param(compiler, dst, dstw);
fprintf(compiler->verbose, "\n");
}
#endif
CHECK_RETURN_OK;
}
static __inline CHECK_RETURN_TYPE check_sljit_emit_fast_return(struct sljit_compiler *compiler, int src, long srcw)
{
#if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)