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version 1.1, 2012/02/21 23:05:52
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version 1.1.1.2, 2012/02/21 23:50:25
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Line 1
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Line 1
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| /* |
/* |
| * Stack-less Just-In-Time compiler |
* Stack-less Just-In-Time compiler |
| * |
* |
| * Copyright 2009-2010 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved. | * Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved. |
| * |
* |
| * Redistribution and use in source and binary forms, with or without modification, are |
* Redistribution and use in source and binary forms, with or without modification, are |
| * permitted provided that the following conditions are met: |
* permitted provided that the following conditions are met: |
|
Line 86 static sljit_ub* generate_fixed_jump(sljit_ub *code_pt
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Line 86 static sljit_ub* generate_fixed_jump(sljit_ub *code_pt
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| return code_ptr; |
return code_ptr; |
| } |
} |
| |
|
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size) | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size) |
| { |
{ |
| int size, pushed_size; |
int size, pushed_size; |
| sljit_ub *buf; |
sljit_ub *buf; |
| |
|
| CHECK_ERROR(); |
CHECK_ERROR(); |
| check_sljit_emit_enter(compiler, args, temporaries, generals, local_size); | check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size); |
| |
|
| compiler->temporaries = temporaries; |
compiler->temporaries = temporaries; |
| compiler->generals = generals; | compiler->saveds = saveds; |
| compiler->flags_saved = 0; |
compiler->flags_saved = 0; |
| |
|
| size = generals; | size = saveds; |
| /* Including the return address saved by the call instruction. */ |
/* Including the return address saved by the call instruction. */ |
| pushed_size = (generals + 1) * sizeof(sljit_w); | pushed_size = (saveds + 1) * sizeof(sljit_w); |
| #ifndef _WIN64 |
#ifndef _WIN64 |
| if (generals >= 2) | if (saveds >= 2) |
| size += generals - 1; | size += saveds - 1; |
| #else |
#else |
| /* Saving the virtual stack pointer. */ |
/* Saving the virtual stack pointer. */ |
| compiler->has_locals = local_size > 0; |
compiler->has_locals = local_size > 0; |
|
Line 111 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct s
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Line 111 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct s
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| size += 2; |
size += 2; |
| pushed_size += sizeof(sljit_w); |
pushed_size += sizeof(sljit_w); |
| } |
} |
| if (generals >= 4) | if (saveds >= 4) |
| size += generals - 3; | size += saveds - 3; |
| if (temporaries >= 5) { |
if (temporaries >= 5) { |
| size += (5 - 4) * 2; |
size += (5 - 4) * 2; |
| pushed_size += sizeof(sljit_w); |
pushed_size += sizeof(sljit_w); |
|
Line 124 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct s
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Line 124 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct s
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| FAIL_IF(!buf); |
FAIL_IF(!buf); |
| |
|
| INC_SIZE(size); |
INC_SIZE(size); |
| if (generals >= 5) { | if (saveds >= 5) { |
| SLJIT_COMPILE_ASSERT(reg_map[SLJIT_GENERAL_EREG2] >= 8, general_ereg2_is_hireg); | SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_EREG2] >= 8, saved_ereg2_is_hireg); |
| *buf++ = REX_B; |
*buf++ = REX_B; |
| PUSH_REG(reg_lmap[SLJIT_GENERAL_EREG2]); | PUSH_REG(reg_lmap[SLJIT_SAVED_EREG2]); |
| } |
} |
| if (generals >= 4) { | if (saveds >= 4) { |
| SLJIT_COMPILE_ASSERT(reg_map[SLJIT_GENERAL_EREG1] >= 8, general_ereg1_is_hireg); | SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_EREG1] >= 8, saved_ereg1_is_hireg); |
| *buf++ = REX_B; |
*buf++ = REX_B; |
| PUSH_REG(reg_lmap[SLJIT_GENERAL_EREG1]); | PUSH_REG(reg_lmap[SLJIT_SAVED_EREG1]); |
| } |
} |
| if (generals >= 3) { | if (saveds >= 3) { |
| #ifndef _WIN64 |
#ifndef _WIN64 |
| SLJIT_COMPILE_ASSERT(reg_map[SLJIT_GENERAL_REG3] >= 8, general_reg3_is_hireg); | SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG3] >= 8, saved_reg3_is_hireg); |
| *buf++ = REX_B; |
*buf++ = REX_B; |
| #else |
#else |
| SLJIT_COMPILE_ASSERT(reg_map[SLJIT_GENERAL_REG3] < 8, general_reg3_is_loreg); | SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG3] < 8, saved_reg3_is_loreg); |
| #endif |
#endif |
| PUSH_REG(reg_lmap[SLJIT_GENERAL_REG3]); | PUSH_REG(reg_lmap[SLJIT_SAVED_REG3]); |
| } |
} |
| if (generals >= 2) { | if (saveds >= 2) { |
| #ifndef _WIN64 |
#ifndef _WIN64 |
| SLJIT_COMPILE_ASSERT(reg_map[SLJIT_GENERAL_REG2] >= 8, general_reg2_is_hireg); | SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG2] >= 8, saved_reg2_is_hireg); |
| *buf++ = REX_B; |
*buf++ = REX_B; |
| #else |
#else |
| SLJIT_COMPILE_ASSERT(reg_map[SLJIT_GENERAL_REG2] < 8, general_reg2_is_loreg); | SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG2] < 8, saved_reg2_is_loreg); |
| #endif |
#endif |
| PUSH_REG(reg_lmap[SLJIT_GENERAL_REG2]); | PUSH_REG(reg_lmap[SLJIT_SAVED_REG2]); |
| } |
} |
| if (generals >= 1) { | if (saveds >= 1) { |
| SLJIT_COMPILE_ASSERT(reg_map[SLJIT_GENERAL_REG1] < 8, general_reg1_is_loreg); | SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG1] < 8, saved_reg1_is_loreg); |
| PUSH_REG(reg_lmap[SLJIT_GENERAL_REG1]); | PUSH_REG(reg_lmap[SLJIT_SAVED_REG1]); |
| } |
} |
| #ifdef _WIN64 |
#ifdef _WIN64 |
| if (temporaries >= 5) { |
if (temporaries >= 5) { |
|
Line 173 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct s
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Line 173 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct s
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| if (args > 0) { |
if (args > 0) { |
| *buf++ = REX_W; |
*buf++ = REX_W; |
| *buf++ = 0x8b; |
*buf++ = 0x8b; |
| *buf++ = 0xc0 | (reg_map[SLJIT_GENERAL_REG1] << 3) | 0x7; | *buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG1] << 3) | 0x7; |
| } |
} |
| if (args > 1) { |
if (args > 1) { |
| *buf++ = REX_W | REX_R; |
*buf++ = REX_W | REX_R; |
| *buf++ = 0x8b; |
*buf++ = 0x8b; |
| *buf++ = 0xc0 | (reg_lmap[SLJIT_GENERAL_REG2] << 3) | 0x6; | *buf++ = 0xc0 | (reg_lmap[SLJIT_SAVED_REG2] << 3) | 0x6; |
| } |
} |
| if (args > 2) { |
if (args > 2) { |
| *buf++ = REX_W | REX_R; |
*buf++ = REX_W | REX_R; |
| *buf++ = 0x8b; |
*buf++ = 0x8b; |
| *buf++ = 0xc0 | (reg_lmap[SLJIT_GENERAL_REG3] << 3) | 0x2; | *buf++ = 0xc0 | (reg_lmap[SLJIT_SAVED_REG3] << 3) | 0x2; |
| } |
} |
| #else |
#else |
| if (args > 0) { |
if (args > 0) { |
| *buf++ = REX_W; |
*buf++ = REX_W; |
| *buf++ = 0x8b; |
*buf++ = 0x8b; |
| *buf++ = 0xc0 | (reg_map[SLJIT_GENERAL_REG1] << 3) | 0x1; | *buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG1] << 3) | 0x1; |
| } |
} |
| if (args > 1) { |
if (args > 1) { |
| *buf++ = REX_W; |
*buf++ = REX_W; |
| *buf++ = 0x8b; |
*buf++ = 0x8b; |
| *buf++ = 0xc0 | (reg_map[SLJIT_GENERAL_REG2] << 3) | 0x2; | *buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG2] << 3) | 0x2; |
| } |
} |
| if (args > 2) { |
if (args > 2) { |
| *buf++ = REX_W | REX_B; |
*buf++ = REX_W | REX_B; |
| *buf++ = 0x8b; |
*buf++ = 0x8b; |
| *buf++ = 0xc0 | (reg_map[SLJIT_GENERAL_REG3] << 3) | 0x0; | *buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG3] << 3) | 0x0; |
| } |
} |
| #endif |
#endif |
| } |
} |
|
Line 269 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct s
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Line 269 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct s
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| } |
} |
| #endif |
#endif |
| |
|
| /* Mov arguments to general registers. */ |
|
| return SLJIT_SUCCESS; |
return SLJIT_SUCCESS; |
| } |
} |
| |
|
| SLJIT_API_FUNC_ATTRIBUTE void sljit_fake_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size) | SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size) |
| { |
{ |
| int pushed_size; |
int pushed_size; |
| |
|
| CHECK_ERROR_VOID(); |
CHECK_ERROR_VOID(); |
| check_sljit_fake_enter(compiler, args, temporaries, generals, local_size); | check_sljit_set_context(compiler, args, temporaries, saveds, local_size); |
| |
|
| compiler->temporaries = temporaries; |
compiler->temporaries = temporaries; |
| compiler->generals = generals; | compiler->saveds = saveds; |
| /* Including the return address saved by the call instruction. */ |
/* Including the return address saved by the call instruction. */ |
| pushed_size = (generals + 1) * sizeof(sljit_w); | pushed_size = (saveds + 1) * sizeof(sljit_w); |
| #ifdef _WIN64 |
#ifdef _WIN64 |
| compiler->has_locals = local_size > 0; |
compiler->has_locals = local_size > 0; |
| if (local_size > 0) |
if (local_size > 0) |
|
Line 297 SLJIT_API_FUNC_ATTRIBUTE void sljit_fake_enter(struct
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Line 296 SLJIT_API_FUNC_ATTRIBUTE void sljit_fake_enter(struct
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| #endif |
#endif |
| } |
} |
| |
|
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int src, sljit_w srcw) | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw) |
| { |
{ |
| int size; |
int size; |
| sljit_ub *buf; |
sljit_ub *buf; |
| |
|
| CHECK_ERROR(); |
CHECK_ERROR(); |
| check_sljit_emit_return(compiler, src, srcw); | check_sljit_emit_return(compiler, op, src, srcw); |
| |
|
| compiler->flags_saved = 0; |
compiler->flags_saved = 0; |
| |
FAIL_IF(emit_mov_before_return(compiler, op, src, srcw)); |
| |
|
| if (src != SLJIT_UNUSED && src != SLJIT_RETURN_REG) { |
|
| compiler->mode32 = 0; |
|
| FAIL_IF(emit_mov(compiler, SLJIT_RETURN_REG, 0, src, srcw)); |
|
| } |
|
| |
|
| if (compiler->local_size > 0) { |
if (compiler->local_size > 0) { |
| if (compiler->local_size <= 127) { |
if (compiler->local_size <= 127) { |
| buf = (sljit_ub*)ensure_buf(compiler, 1 + 4); |
buf = (sljit_ub*)ensure_buf(compiler, 1 + 4); |
|
Line 333 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct
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Line 328 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct
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| } |
} |
| } |
} |
| |
|
| size = 1 + compiler->generals; | size = 1 + compiler->saveds; |
| #ifndef _WIN64 |
#ifndef _WIN64 |
| if (compiler->generals >= 2) | if (compiler->saveds >= 2) |
| size += compiler->generals - 1; | size += compiler->saveds - 1; |
| #else |
#else |
| if (compiler->has_locals) |
if (compiler->has_locals) |
| size += 2; |
size += 2; |
| if (compiler->generals >= 4) | if (compiler->saveds >= 4) |
| size += compiler->generals - 3; | size += compiler->saveds - 3; |
| if (compiler->temporaries >= 5) |
if (compiler->temporaries >= 5) |
| size += (5 - 4) * 2; |
size += (5 - 4) * 2; |
| #endif |
#endif |
|
Line 360 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct
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Line 355 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct
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| POP_REG(reg_lmap[SLJIT_TEMPORARY_EREG2]); |
POP_REG(reg_lmap[SLJIT_TEMPORARY_EREG2]); |
| } |
} |
| #endif |
#endif |
| if (compiler->generals >= 1) | if (compiler->saveds >= 1) |
| POP_REG(reg_map[SLJIT_GENERAL_REG1]); | POP_REG(reg_map[SLJIT_SAVED_REG1]); |
| if (compiler->generals >= 2) { | if (compiler->saveds >= 2) { |
| #ifndef _WIN64 |
#ifndef _WIN64 |
| *buf++ = REX_B; |
*buf++ = REX_B; |
| #endif |
#endif |
| POP_REG(reg_lmap[SLJIT_GENERAL_REG2]); | POP_REG(reg_lmap[SLJIT_SAVED_REG2]); |
| } |
} |
| if (compiler->generals >= 3) { | if (compiler->saveds >= 3) { |
| #ifndef _WIN64 |
#ifndef _WIN64 |
| *buf++ = REX_B; |
*buf++ = REX_B; |
| #endif |
#endif |
| POP_REG(reg_lmap[SLJIT_GENERAL_REG3]); | POP_REG(reg_lmap[SLJIT_SAVED_REG3]); |
| } |
} |
| if (compiler->generals >= 4) { | if (compiler->saveds >= 4) { |
| *buf++ = REX_B; |
*buf++ = REX_B; |
| POP_REG(reg_lmap[SLJIT_GENERAL_EREG1]); | POP_REG(reg_lmap[SLJIT_SAVED_EREG1]); |
| } |
} |
| if (compiler->generals >= 5) { | if (compiler->saveds >= 5) { |
| *buf++ = REX_B; |
*buf++ = REX_B; |
| POP_REG(reg_lmap[SLJIT_GENERAL_EREG2]); | POP_REG(reg_lmap[SLJIT_SAVED_EREG2]); |
| } |
} |
| |
|
| RET(); |
RET(); |
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Line 508 static sljit_ub* emit_x86_instruction(struct sljit_com
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Line 503 static sljit_ub* emit_x86_instruction(struct sljit_com
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| inst_size += 4; |
inst_size += 4; |
| } |
} |
| else if (flags & EX86_SHIFT_INS) { |
else if (flags & EX86_SHIFT_INS) { |
| imma &= 0x3f; | imma &= compiler->mode32 ? 0x1f : 0x3f; |
| if (imma != 1) { |
if (imma != 1) { |
| inst_size ++; |
inst_size ++; |
| flags |= EX86_BYTE_ARG; |
flags |= EX86_BYTE_ARG; |
|
Line 676 static SLJIT_INLINE int call_with_args(struct sljit_co
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Line 671 static SLJIT_INLINE int call_with_args(struct sljit_co
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| return SLJIT_SUCCESS; |
return SLJIT_SUCCESS; |
| } |
} |
| |
|
| SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw, int args, int temporaries, int generals, int local_size) | SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw, int args, int temporaries, int saveds, int local_size) |
| { |
{ |
| sljit_ub *buf; |
sljit_ub *buf; |
| |
|
| CHECK_ERROR(); |
CHECK_ERROR(); |
| check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, generals, local_size); | check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, saveds, local_size); |
| |
|
| compiler->temporaries = temporaries; |
compiler->temporaries = temporaries; |
| compiler->generals = generals; | compiler->saveds = saveds; |
| compiler->local_size = (local_size + sizeof(sljit_uw) - 1) & ~(sizeof(sljit_uw) - 1); |
compiler->local_size = (local_size + sizeof(sljit_uw) - 1) & ~(sizeof(sljit_uw) - 1); |
| #ifdef _WIN64 |
#ifdef _WIN64 |
| compiler->local_size += 4 * sizeof(sljit_w); |
compiler->local_size += 4 * sizeof(sljit_w); |
|
Line 802 static int emit_mov_int(struct sljit_compiler *compile
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Line 797 static int emit_mov_int(struct sljit_compiler *compile
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| return SLJIT_SUCCESS; /* Empty instruction. */ |
return SLJIT_SUCCESS; /* Empty instruction. */ |
| |
|
| if (src & SLJIT_IMM) { |
if (src & SLJIT_IMM) { |
| if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) | if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) { |
| | if (sign || ((sljit_uw)srcw <= 0x7fffffff)) { |
| | code = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_w)(sljit_i)srcw, dst, dstw); |
| | FAIL_IF(!code); |
| | *code = 0xc7; |
| | return SLJIT_SUCCESS; |
| | } |
| return emit_load_imm64(compiler, dst, srcw); |
return emit_load_imm64(compiler, dst, srcw); |
| |
} |
| compiler->mode32 = 1; |
compiler->mode32 = 1; |
| code = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_w)(int)srcw, dst, dstw); | code = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_w)(sljit_i)srcw, dst, dstw); |
| FAIL_IF(!code); |
FAIL_IF(!code); |
| *code = 0xc7; |
*code = 0xc7; |
| compiler->mode32 = 0; |
compiler->mode32 = 0; |
| return SLJIT_SUCCESS; |
return SLJIT_SUCCESS; |
| } |
} |
| |
|
| dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_GENERAL_REG3) ? dst : TMP_REGISTER; | dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_SAVED_REG3) ? dst : TMP_REGISTER; |
| |
|
| if ((dst & SLJIT_MEM) && (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_GENERAL_REG3)) | if ((dst & SLJIT_MEM) && (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_SAVED_REG3)) |
| dst_r = src; |
dst_r = src; |
| else { |
else { |
| if (sign) { |
if (sign) { |
| code = emit_x86_instruction(compiler, 1, dst_r, 0, src, srcw); |
code = emit_x86_instruction(compiler, 1, dst_r, 0, src, srcw); |
| FAIL_IF(!code); |
FAIL_IF(!code); |
| *code++ = 0x63; |
*code++ = 0x63; |
| } | } else { |
| else { | compiler->mode32 = 1; |
| if (dst_r == src) { | FAIL_IF(emit_mov(compiler, dst_r, 0, src, srcw)); |
| compiler->mode32 = 1; | compiler->mode32 = 0; |
| code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src, 0); | |
| FAIL_IF(!code); | |
| *code++ = 0x8b; | |
| compiler->mode32 = 0; | |
| } | |
| /* xor reg, reg. */ | |
| code = emit_x86_instruction(compiler, 1, dst_r, 0, dst_r, 0); | |
| FAIL_IF(!code); | |
| *code++ = 0x33; | |
| if (dst_r != src) { | |
| compiler->mode32 = 1; | |
| code = emit_x86_instruction(compiler, 1, dst_r, 0, src, srcw); | |
| FAIL_IF(!code); | |
| *code++ = 0x8b; | |
| compiler->mode32 = 0; | |
| } | |
| else { | |
| compiler->mode32 = 1; | |
| code = emit_x86_instruction(compiler, 1, src, 0, TMP_REGISTER, 0); | |
| FAIL_IF(!code); | |
| *code++ = 0x8b; | |
| compiler->mode32 = 0; | |
| } | |
| } |
} |
| } |
} |
| |
|