diff options
Diffstat (limited to 'src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c')
-rw-r--r-- | src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c | 147 |
1 files changed, 71 insertions, 76 deletions
diff --git a/src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c b/src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c index e88ddedcd1..039b68c45a 100644 --- a/src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c +++ b/src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c @@ -1,7 +1,7 @@ /* * Stack-less Just-In-Time compiler * - * Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved. + * 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: @@ -47,9 +47,8 @@ static sljit_u8* generate_far_jump_code(struct sljit_jump *jump, sljit_u8 *code_ *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; + *code_ptr++ = REX_W | ((reg_map[TMP_REG2] <= 7) ? 0 : REX_B); + *code_ptr++ = MOV_r_i32 | reg_lmap[TMP_REG2]; jump->addr = (sljit_uw)code_ptr; if (jump->flags & JUMP_LABEL) @@ -58,31 +57,10 @@ static sljit_u8* generate_far_jump_code(struct sljit_jump *jump, sljit_u8 *code_ sljit_unaligned_store_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_u8* generate_fixed_jump(sljit_u8 *code_ptr, sljit_sw addr, sljit_s32 type) -{ - sljit_sw delta = addr - ((sljit_sw)code_ptr + 1 + sizeof(sljit_s32)); - - if (delta <= HALFWORD_MAX && delta >= HALFWORD_MIN) { - *code_ptr++ = (type == 2) ? CALL_i32 : JMP_i32; - sljit_unaligned_store_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_unaligned_store_sw(code_ptr, addr); - code_ptr += sizeof(sljit_sw); + if (reg_map[TMP_REG2] >= 8) *code_ptr++ = REX_B; - *code_ptr++ = GROUP_FF; - *code_ptr++ = (type == 2) ? (MOD_REG | CALL_rm | 1) : (MOD_REG | JMP_rm | 1); - } + *code_ptr++ = GROUP_FF; + *code_ptr++ = MOD_REG | (type >= SLJIT_FAST_CALL ? CALL_rm : JMP_rm) | reg_lmap[TMP_REG2]; return code_ptr; } @@ -98,7 +76,13 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi CHECK(check_sljit_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size)); set_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); - compiler->flags_saved = 0; +#ifdef _WIN64 + /* Two/four register slots for parameters plus space for xmm6 register if needed. */ + if (fscratches >= 6 || fsaveds >= 1) + compiler->locals_offset = 6 * sizeof(sljit_sw); + else + compiler->locals_offset = ((scratches > 2) ? 4 : 2) * sizeof(sljit_sw); +#endif /* Including the return address saved by the call instruction. */ saved_register_size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1); @@ -177,7 +161,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi INC_SIZE(4 + (3 + sizeof(sljit_s32))); *inst++ = REX_W; *inst++ = GROUP_BINARY_83; - *inst++ = MOD_REG | SUB | 4; + *inst++ = MOD_REG | SUB | reg_map[SLJIT_SP]; /* Allocated size for registers must be divisible by 8. */ SLJIT_ASSERT(!(saved_register_size & 0x7)); /* Aligned to 16 byte. */ @@ -189,7 +173,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi local_size -= 4 * sizeof(sljit_sw); } /* Second instruction */ - SLJIT_COMPILE_ASSERT(reg_map[SLJIT_R0] < 8, temporary_reg1_is_loreg); + SLJIT_ASSERT(reg_map[SLJIT_R0] < 8); *inst++ = REX_W; *inst++ = MOV_rm_i32; *inst++ = MOD_REG | reg_lmap[SLJIT_R0]; @@ -202,25 +186,26 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi } #endif - SLJIT_ASSERT(local_size > 0); - if (local_size <= 127) { - inst = (sljit_u8*)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_u8*)ensure_buf(compiler, 1 + 7); - FAIL_IF(!inst); - INC_SIZE(7); - *inst++ = REX_W; - *inst++ = GROUP_BINARY_81; - *inst++ = MOD_REG | SUB | 4; - sljit_unaligned_store_s32(inst, local_size); - inst += sizeof(sljit_s32); + if (local_size > 0) { + if (local_size <= 127) { + inst = (sljit_u8*)ensure_buf(compiler, 1 + 4); + FAIL_IF(!inst); + INC_SIZE(4); + *inst++ = REX_W; + *inst++ = GROUP_BINARY_83; + *inst++ = MOD_REG | SUB | reg_map[SLJIT_SP]; + *inst++ = local_size; + } + else { + inst = (sljit_u8*)ensure_buf(compiler, 1 + 7); + FAIL_IF(!inst); + INC_SIZE(7); + *inst++ = REX_W; + *inst++ = GROUP_BINARY_81; + *inst++ = MOD_REG | SUB | reg_map[SLJIT_SP]; + sljit_unaligned_store_s32(inst, local_size); + inst += sizeof(sljit_s32); + } } #ifdef _WIN64 @@ -247,6 +232,14 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *comp CHECK(check_sljit_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size)); set_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size); +#ifdef _WIN64 + /* Two/four register slots for parameters plus space for xmm6 register if needed. */ + if (fscratches >= 6 || fsaveds >= 1) + compiler->locals_offset = 6 * sizeof(sljit_sw); + else + compiler->locals_offset = ((scratches > 2) ? 4 : 2) * sizeof(sljit_sw); +#endif + /* Including the return address saved by the call instruction. */ saved_register_size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1); compiler->local_size = ((local_size + SLJIT_LOCALS_OFFSET + saved_register_size + 15) & ~15) - saved_register_size; @@ -261,7 +254,6 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *comp CHECK_ERROR(); CHECK(check_sljit_emit_return(compiler, op, src, srcw)); - compiler->flags_saved = 0; FAIL_IF(emit_mov_before_return(compiler, op, src, srcw)); #ifdef _WIN64 @@ -275,24 +267,25 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *comp } #endif - SLJIT_ASSERT(compiler->local_size > 0); - if (compiler->local_size <= 127) { - inst = (sljit_u8*)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_u8*)ensure_buf(compiler, 1 + 7); - FAIL_IF(!inst); - INC_SIZE(7); - *inst++ = REX_W; - *inst++ = GROUP_BINARY_81; - *inst++ = MOD_REG | ADD | 4; - sljit_unaligned_store_s32(inst, compiler->local_size); + if (compiler->local_size > 0) { + if (compiler->local_size <= 127) { + inst = (sljit_u8*)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_u8*)ensure_buf(compiler, 1 + 7); + FAIL_IF(!inst); + INC_SIZE(7); + *inst++ = REX_W; + *inst++ = GROUP_BINARY_81; + *inst++ = MOD_REG | ADD | 4; + sljit_unaligned_store_s32(inst, compiler->local_size); + } } tmp = compiler->scratches; @@ -387,13 +380,12 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32 if (b & SLJIT_MEM) { if (!(b & OFFS_REG_MASK)) { if (NOT_HALFWORD(immb)) { - if (emit_load_imm64(compiler, TMP_REG3, immb)) - return NULL; + PTR_FAIL_IF(emit_load_imm64(compiler, TMP_REG2, immb)); immb = 0; if (b & REG_MASK) - b |= TO_OFFS_REG(TMP_REG3); + b |= TO_OFFS_REG(TMP_REG2); else - b |= TMP_REG3; + b |= TMP_REG2; } else if (reg_lmap[b & REG_MASK] == 4) b |= TO_OFFS_REG(SLJIT_SP); @@ -553,17 +545,19 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32 /* Call / return instructions */ /* --------------------------------------------------------------------- */ -static SLJIT_INLINE sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 type) +static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 type) { sljit_u8 *inst; + /* After any change update IS_REG_CHANGED_BY_CALL as well. */ #ifndef _WIN64 - SLJIT_COMPILE_ASSERT(reg_map[SLJIT_R1] == 6 && reg_map[SLJIT_R0] < 8 && reg_map[SLJIT_R2] < 8, args_registers); + SLJIT_ASSERT(reg_map[SLJIT_R1] == 6 && reg_map[SLJIT_R0] < 8 && reg_map[SLJIT_R2] < 8 && reg_map[TMP_REG1] == 2); inst = (sljit_u8*)ensure_buf(compiler, 1 + ((type < SLJIT_CALL3) ? 3 : 6)); FAIL_IF(!inst); INC_SIZE((type < SLJIT_CALL3) ? 3 : 6); if (type >= SLJIT_CALL3) { + /* Move third argument to TMP_REG1. */ *inst++ = REX_W; *inst++ = MOV_r_rm; *inst++ = MOD_REG | (0x2 /* rdx */ << 3) | reg_lmap[SLJIT_R2]; @@ -572,12 +566,13 @@ static SLJIT_INLINE sljit_s32 call_with_args(struct sljit_compiler *compiler, sl *inst++ = MOV_r_rm; *inst++ = MOD_REG | (0x7 /* rdi */ << 3) | reg_lmap[SLJIT_R0]; #else - SLJIT_COMPILE_ASSERT(reg_map[SLJIT_R1] == 2 && reg_map[SLJIT_R0] < 8 && reg_map[SLJIT_R2] < 8, args_registers); + SLJIT_ASSERT(reg_map[SLJIT_R1] == 2 && reg_map[SLJIT_R0] < 8 && reg_map[SLJIT_R2] < 8 && reg_map[TMP_REG1] == 8); inst = (sljit_u8*)ensure_buf(compiler, 1 + ((type < SLJIT_CALL3) ? 3 : 6)); FAIL_IF(!inst); INC_SIZE((type < SLJIT_CALL3) ? 3 : 6); if (type >= SLJIT_CALL3) { + /* Move third argument to TMP_REG1. */ *inst++ = REX_W | REX_R; *inst++ = MOV_r_rm; *inst++ = MOD_REG | (0x0 /* r8 */ << 3) | reg_lmap[SLJIT_R2]; |