diff --git a/src/pcre2_jit_compile.c b/src/pcre2_jit_compile.c index ebc1779..8cbd8f9 100644 --- a/src/pcre2_jit_compile.c +++ b/src/pcre2_jit_compile.c @@ -5519,590 +5519,11 @@ CMPTO(SLJIT_EQUAL, reg, 0, SLJIT_IMM, 0xdc00, label); } #endif -#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86) && !(defined SUPPORT_VALGRIND) +#include "pcre2_jit_simd_inc.h" -#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 -static struct sljit_jump *jump_if_utf_char_start(struct sljit_compiler *compiler, sljit_s32 reg) -{ -#if PCRE2_CODE_UNIT_WIDTH == 8 -OP2(SLJIT_AND, reg, 0, reg, 0, SLJIT_IMM, 0xc0); -return CMP(SLJIT_NOT_EQUAL, reg, 0, SLJIT_IMM, 0x80); -#elif PCRE2_CODE_UNIT_WIDTH == 16 -OP2(SLJIT_AND, reg, 0, reg, 0, SLJIT_IMM, 0xfc00); -return CMP(SLJIT_NOT_EQUAL, reg, 0, SLJIT_IMM, 0xdc00); -#else -#error "Unknown code width" -#endif -} -#endif +#ifdef JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD -static sljit_s32 character_to_int32(PCRE2_UCHAR chr) -{ -sljit_u32 value = chr; -#if PCRE2_CODE_UNIT_WIDTH == 8 -#define SSE2_COMPARE_TYPE_INDEX 0 -return (sljit_s32)((value << 24) | (value << 16) | (value << 8) | value); -#elif PCRE2_CODE_UNIT_WIDTH == 16 -#define SSE2_COMPARE_TYPE_INDEX 1 -return (sljit_s32)((value << 16) | value); -#elif PCRE2_CODE_UNIT_WIDTH == 32 -#define SSE2_COMPARE_TYPE_INDEX 2 -return (sljit_s32)(value); -#else -#error "Unsupported unit width" -#endif -} - -static void load_from_mem_sse2(struct sljit_compiler *compiler, sljit_s32 dst_xmm_reg, sljit_s32 src_general_reg, sljit_s8 offset) -{ -sljit_u8 instruction[5]; - -SLJIT_ASSERT(dst_xmm_reg < 8); -SLJIT_ASSERT(src_general_reg < 8); - -/* MOVDQA xmm1, xmm2/m128 */ -instruction[0] = ((sljit_u8)offset & 0xf) == 0 ? 0x66 : 0xf3; -instruction[1] = 0x0f; -instruction[2] = 0x6f; - -if (offset == 0) - { - instruction[3] = (dst_xmm_reg << 3) | src_general_reg; - sljit_emit_op_custom(compiler, instruction, 4); - return; - } - -instruction[3] = 0x40 | (dst_xmm_reg << 3) | src_general_reg; -instruction[4] = (sljit_u8)offset; -sljit_emit_op_custom(compiler, instruction, 5); -} - -typedef enum { - sse2_compare_match1, - sse2_compare_match1i, - sse2_compare_match2, -} sse2_compare_type; - -static void fast_forward_char_pair_sse2_compare(struct sljit_compiler *compiler, sse2_compare_type compare_type, - int step, sljit_s32 dst_ind, sljit_s32 cmp1_ind, sljit_s32 cmp2_ind, sljit_s32 tmp_ind) -{ -sljit_u8 instruction[4]; -instruction[0] = 0x66; -instruction[1] = 0x0f; - -SLJIT_ASSERT(step >= 0 && step <= 3); - -if (compare_type != sse2_compare_match2) - { - if (step == 0) - { - if (compare_type == sse2_compare_match1i) - { - /* POR xmm1, xmm2/m128 */ - /* instruction[0] = 0x66; */ - /* instruction[1] = 0x0f; */ - instruction[2] = 0xeb; - instruction[3] = 0xc0 | (dst_ind << 3) | cmp2_ind; - sljit_emit_op_custom(compiler, instruction, 4); - } - return; - } - - if (step != 2) - return; - - /* PCMPEQB/W/D xmm1, xmm2/m128 */ - /* instruction[0] = 0x66; */ - /* instruction[1] = 0x0f; */ - instruction[2] = 0x74 + SSE2_COMPARE_TYPE_INDEX; - instruction[3] = 0xc0 | (dst_ind << 3) | cmp1_ind; - sljit_emit_op_custom(compiler, instruction, 4); - return; - } - -switch (step) - { - case 0: - /* MOVDQA xmm1, xmm2/m128 */ - /* instruction[0] = 0x66; */ - /* instruction[1] = 0x0f; */ - instruction[2] = 0x6f; - instruction[3] = 0xc0 | (tmp_ind << 3) | dst_ind; - sljit_emit_op_custom(compiler, instruction, 4); - return; - - case 1: - /* PCMPEQB/W/D xmm1, xmm2/m128 */ - /* instruction[0] = 0x66; */ - /* instruction[1] = 0x0f; */ - instruction[2] = 0x74 + SSE2_COMPARE_TYPE_INDEX; - instruction[3] = 0xc0 | (dst_ind << 3) | cmp1_ind; - sljit_emit_op_custom(compiler, instruction, 4); - return; - - case 2: - /* PCMPEQB/W/D xmm1, xmm2/m128 */ - /* instruction[0] = 0x66; */ - /* instruction[1] = 0x0f; */ - instruction[2] = 0x74 + SSE2_COMPARE_TYPE_INDEX; - instruction[3] = 0xc0 | (tmp_ind << 3) | cmp2_ind; - sljit_emit_op_custom(compiler, instruction, 4); - return; - - case 3: - /* POR xmm1, xmm2/m128 */ - /* instruction[0] = 0x66; */ - /* instruction[1] = 0x0f; */ - instruction[2] = 0xeb; - instruction[3] = 0xc0 | (dst_ind << 3) | tmp_ind; - sljit_emit_op_custom(compiler, instruction, 4); - return; - } -} - -static void fast_forward_first_char2_sse2(compiler_common *common, PCRE2_UCHAR char1, PCRE2_UCHAR char2, sljit_s32 offset) -{ -DEFINE_COMPILER; -struct sljit_label *start; -#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 -struct sljit_label *restart; -#endif -struct sljit_jump *quit; -struct sljit_jump *partial_quit[2]; -sse2_compare_type compare_type = sse2_compare_match1; -sljit_u8 instruction[8]; -sljit_s32 tmp1_reg_ind = sljit_get_register_index(TMP1); -sljit_s32 str_ptr_reg_ind = sljit_get_register_index(STR_PTR); -sljit_s32 data_ind = 0; -sljit_s32 tmp_ind = 1; -sljit_s32 cmp1_ind = 2; -sljit_s32 cmp2_ind = 3; -sljit_u32 bit = 0; -int i; - -SLJIT_UNUSED_ARG(offset); - -if (char1 != char2) - { - bit = char1 ^ char2; - compare_type = sse2_compare_match1i; - - if (!is_powerof2(bit)) - { - bit = 0; - compare_type = sse2_compare_match2; - } - } - -partial_quit[0] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); -if (common->mode == PCRE2_JIT_COMPLETE) - add_jump(compiler, &common->failed_match, partial_quit[0]); - -/* First part (unaligned start) */ - -OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1 | bit)); - -SLJIT_ASSERT(tmp1_reg_ind < 8); - -/* MOVD xmm, r/m32 */ -instruction[0] = 0x66; -instruction[1] = 0x0f; -instruction[2] = 0x6e; -instruction[3] = 0xc0 | (cmp1_ind << 3) | tmp1_reg_ind; -sljit_emit_op_custom(compiler, instruction, 4); - -if (char1 != char2) - { - OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(bit != 0 ? bit : char2)); - - /* MOVD xmm, r/m32 */ - instruction[3] = 0xc0 | (cmp2_ind << 3) | tmp1_reg_ind; - sljit_emit_op_custom(compiler, instruction, 4); - } - -OP1(SLJIT_MOV, TMP2, 0, STR_PTR, 0); - -/* PSHUFD xmm1, xmm2/m128, imm8 */ -/* instruction[0] = 0x66; */ -/* instruction[1] = 0x0f; */ -instruction[2] = 0x70; -instruction[3] = 0xc0 | (cmp1_ind << 3) | cmp1_ind; -instruction[4] = 0; -sljit_emit_op_custom(compiler, instruction, 5); - -if (char1 != char2) - { - /* PSHUFD xmm1, xmm2/m128, imm8 */ - instruction[3] = 0xc0 | (cmp2_ind << 3) | cmp2_ind; - sljit_emit_op_custom(compiler, instruction, 5); - } - -#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 -restart = LABEL(); -#endif -OP2(SLJIT_AND, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, ~0xf); -OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xf); - -load_from_mem_sse2(compiler, data_ind, str_ptr_reg_ind, 0); -for (i = 0; i < 4; i++) - fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); - -/* PMOVMSKB reg, xmm */ -/* instruction[0] = 0x66; */ -/* instruction[1] = 0x0f; */ -instruction[2] = 0xd7; -instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | data_ind; -sljit_emit_op_custom(compiler, instruction, 4); - -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); -OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, TMP2, 0); - -quit = CMP(SLJIT_NOT_ZERO, TMP1, 0, SLJIT_IMM, 0); - -OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0); - -/* Second part (aligned) */ -start = LABEL(); - -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, 16); - -partial_quit[1] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); -if (common->mode == PCRE2_JIT_COMPLETE) - add_jump(compiler, &common->failed_match, partial_quit[1]); - -load_from_mem_sse2(compiler, data_ind, str_ptr_reg_ind, 0); -for (i = 0; i < 4; i++) - fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); - -/* PMOVMSKB reg, xmm */ -/* instruction[0] = 0x66; */ -/* instruction[1] = 0x0f; */ -instruction[2] = 0xd7; -instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | data_ind; -sljit_emit_op_custom(compiler, instruction, 4); - -CMPTO(SLJIT_ZERO, TMP1, 0, SLJIT_IMM, 0, start); - -JUMPHERE(quit); - -/* BSF r32, r/m32 */ -instruction[0] = 0x0f; -instruction[1] = 0xbc; -instruction[2] = 0xc0 | (tmp1_reg_ind << 3) | tmp1_reg_ind; -sljit_emit_op_custom(compiler, instruction, 3); - -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); - -if (common->mode != PCRE2_JIT_COMPLETE) - { - JUMPHERE(partial_quit[0]); - JUMPHERE(partial_quit[1]); - OP2(SLJIT_SUB | SLJIT_SET_GREATER, SLJIT_UNUSED, 0, STR_PTR, 0, STR_END, 0); - CMOV(SLJIT_GREATER, STR_PTR, STR_END, 0); - } -else - add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); - -#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 -if (common->utf && offset > 0) - { - SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE); - - OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-offset)); - - quit = jump_if_utf_char_start(compiler, TMP1); - - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); - add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); - OP1(SLJIT_MOV, TMP2, 0, STR_PTR, 0); - JUMPTO(SLJIT_JUMP, restart); - - JUMPHERE(quit); - } -#endif -} - -#ifndef _WIN64 - -static SLJIT_INLINE sljit_u32 max_fast_forward_char_pair_sse2_offset(void) -{ -#if PCRE2_CODE_UNIT_WIDTH == 8 -return 15; -#elif PCRE2_CODE_UNIT_WIDTH == 16 -return 7; -#elif PCRE2_CODE_UNIT_WIDTH == 32 -return 3; -#else -#error "Unsupported unit width" -#endif -} - -static void fast_forward_char_pair_sse2(compiler_common *common, sljit_s32 offs1, - PCRE2_UCHAR char1a, PCRE2_UCHAR char1b, sljit_s32 offs2, PCRE2_UCHAR char2a, PCRE2_UCHAR char2b) -{ -DEFINE_COMPILER; -sse2_compare_type compare1_type = sse2_compare_match1; -sse2_compare_type compare2_type = sse2_compare_match1; -sljit_u32 bit1 = 0; -sljit_u32 bit2 = 0; -sljit_u32 diff = IN_UCHARS(offs1 - offs2); -sljit_s32 tmp1_reg_ind = sljit_get_register_index(TMP1); -sljit_s32 tmp2_reg_ind = sljit_get_register_index(TMP2); -sljit_s32 str_ptr_reg_ind = sljit_get_register_index(STR_PTR); -sljit_s32 data1_ind = 0; -sljit_s32 data2_ind = 1; -sljit_s32 tmp1_ind = 2; -sljit_s32 tmp2_ind = 3; -sljit_s32 cmp1a_ind = 4; -sljit_s32 cmp1b_ind = 5; -sljit_s32 cmp2a_ind = 6; -sljit_s32 cmp2b_ind = 7; -struct sljit_label *start; -#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 -struct sljit_label *restart; -#endif -struct sljit_jump *jump[2]; -sljit_u8 instruction[8]; -int i; - -SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE && offs1 > offs2); -SLJIT_ASSERT(diff <= IN_UCHARS(max_fast_forward_char_pair_sse2_offset())); -SLJIT_ASSERT(tmp1_reg_ind < 8 && tmp2_reg_ind == 1); - -/* Initialize. */ -if (common->match_end_ptr != 0) - { - OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); - OP1(SLJIT_MOV, TMP3, 0, STR_END, 0); - OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(offs1 + 1)); - - OP2(SLJIT_SUB | SLJIT_SET_LESS, SLJIT_UNUSED, 0, TMP1, 0, STR_END, 0); - CMOV(SLJIT_LESS, STR_END, TMP1, 0); - } - -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offs1)); -add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); - -/* MOVD xmm, r/m32 */ -instruction[0] = 0x66; -instruction[1] = 0x0f; -instruction[2] = 0x6e; - -if (char1a == char1b) - OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1a)); -else - { - bit1 = char1a ^ char1b; - if (is_powerof2(bit1)) - { - compare1_type = sse2_compare_match1i; - OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1a | bit1)); - OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(bit1)); - } - else - { - compare1_type = sse2_compare_match2; - bit1 = 0; - OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1a)); - OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(char1b)); - } - } - -instruction[3] = 0xc0 | (cmp1a_ind << 3) | tmp1_reg_ind; -sljit_emit_op_custom(compiler, instruction, 4); - -if (char1a != char1b) - { - instruction[3] = 0xc0 | (cmp1b_ind << 3) | tmp2_reg_ind; - sljit_emit_op_custom(compiler, instruction, 4); - } - -if (char2a == char2b) - OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char2a)); -else - { - bit2 = char2a ^ char2b; - if (is_powerof2(bit2)) - { - compare2_type = sse2_compare_match1i; - OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char2a | bit2)); - OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(bit2)); - } - else - { - compare2_type = sse2_compare_match2; - bit2 = 0; - OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char2a)); - OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(char2b)); - } - } - -instruction[3] = 0xc0 | (cmp2a_ind << 3) | tmp1_reg_ind; -sljit_emit_op_custom(compiler, instruction, 4); - -if (char2a != char2b) - { - instruction[3] = 0xc0 | (cmp2b_ind << 3) | tmp2_reg_ind; - sljit_emit_op_custom(compiler, instruction, 4); - } - -/* PSHUFD xmm1, xmm2/m128, imm8 */ -/* instruction[0] = 0x66; */ -/* instruction[1] = 0x0f; */ -instruction[2] = 0x70; -instruction[4] = 0; - -instruction[3] = 0xc0 | (cmp1a_ind << 3) | cmp1a_ind; -sljit_emit_op_custom(compiler, instruction, 5); - -if (char1a != char1b) - { - instruction[3] = 0xc0 | (cmp1b_ind << 3) | cmp1b_ind; - sljit_emit_op_custom(compiler, instruction, 5); - } - -instruction[3] = 0xc0 | (cmp2a_ind << 3) | cmp2a_ind; -sljit_emit_op_custom(compiler, instruction, 5); - -if (char2a != char2b) - { - instruction[3] = 0xc0 | (cmp2b_ind << 3) | cmp2b_ind; - sljit_emit_op_custom(compiler, instruction, 5); - } - -#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 -restart = LABEL(); -#endif - -OP2(SLJIT_SUB, TMP1, 0, STR_PTR, 0, SLJIT_IMM, diff); -OP1(SLJIT_MOV, TMP2, 0, STR_PTR, 0); -OP2(SLJIT_AND, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, ~0xf); - -load_from_mem_sse2(compiler, data1_ind, str_ptr_reg_ind, 0); - -jump[0] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, STR_PTR, 0); - -load_from_mem_sse2(compiler, data2_ind, str_ptr_reg_ind, -(sljit_s8)diff); -jump[1] = JUMP(SLJIT_JUMP); - -JUMPHERE(jump[0]); - -/* MOVDQA xmm1, xmm2/m128 */ -/* instruction[0] = 0x66; */ -/* instruction[1] = 0x0f; */ -instruction[2] = 0x6f; -instruction[3] = 0xc0 | (data2_ind << 3) | data1_ind; -sljit_emit_op_custom(compiler, instruction, 4); - -/* PSLLDQ xmm1, imm8 */ -/* instruction[0] = 0x66; */ -/* instruction[1] = 0x0f; */ -instruction[2] = 0x73; -instruction[3] = 0xc0 | (7 << 3) | data2_ind; -instruction[4] = diff; -sljit_emit_op_custom(compiler, instruction, 5); - -JUMPHERE(jump[1]); - -OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xf); - -for (i = 0; i < 4; i++) - { - fast_forward_char_pair_sse2_compare(compiler, compare2_type, i, data2_ind, cmp2a_ind, cmp2b_ind, tmp2_ind); - fast_forward_char_pair_sse2_compare(compiler, compare1_type, i, data1_ind, cmp1a_ind, cmp1b_ind, tmp1_ind); - } - -/* PAND xmm1, xmm2/m128 */ -/* instruction[0] = 0x66; */ -/* instruction[1] = 0x0f; */ -instruction[2] = 0xdb; -instruction[3] = 0xc0 | (data1_ind << 3) | data2_ind; -sljit_emit_op_custom(compiler, instruction, 4); - -/* PMOVMSKB reg, xmm */ -/* instruction[0] = 0x66; */ -/* instruction[1] = 0x0f; */ -instruction[2] = 0xd7; -instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | 0; -sljit_emit_op_custom(compiler, instruction, 4); - -/* Ignore matches before the first STR_PTR. */ -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); -OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, TMP2, 0); - -jump[0] = CMP(SLJIT_NOT_ZERO, TMP1, 0, SLJIT_IMM, 0); - -OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0); - -/* Main loop. */ -start = LABEL(); - -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, 16); -add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); - -load_from_mem_sse2(compiler, data1_ind, str_ptr_reg_ind, 0); -load_from_mem_sse2(compiler, data2_ind, str_ptr_reg_ind, -(sljit_s8)diff); - -for (i = 0; i < 4; i++) - { - fast_forward_char_pair_sse2_compare(compiler, compare1_type, i, data1_ind, cmp1a_ind, cmp1b_ind, tmp2_ind); - fast_forward_char_pair_sse2_compare(compiler, compare2_type, i, data2_ind, cmp2a_ind, cmp2b_ind, tmp1_ind); - } - -/* PAND xmm1, xmm2/m128 */ -/* instruction[0] = 0x66; */ -/* instruction[1] = 0x0f; */ -instruction[2] = 0xdb; -instruction[3] = 0xc0 | (data1_ind << 3) | data2_ind; -sljit_emit_op_custom(compiler, instruction, 4); - -/* PMOVMSKB reg, xmm */ -/* instruction[0] = 0x66; */ -/* instruction[1] = 0x0f; */ -instruction[2] = 0xd7; -instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | 0; -sljit_emit_op_custom(compiler, instruction, 4); - -CMPTO(SLJIT_ZERO, TMP1, 0, SLJIT_IMM, 0, start); - -JUMPHERE(jump[0]); - -/* BSF r32, r/m32 */ -instruction[0] = 0x0f; -instruction[1] = 0xbc; -instruction[2] = 0xc0 | (tmp1_reg_ind << 3) | tmp1_reg_ind; -sljit_emit_op_custom(compiler, instruction, 3); - -OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); - -add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); - -if (common->match_end_ptr != 0) - OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); - -#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 -if (common->utf) - { - OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-offs1)); - - jump[0] = jump_if_utf_char_start(compiler, TMP1); - - OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); - CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, restart); - - add_jump(compiler, &common->failed_match, JUMP(SLJIT_JUMP)); - - JUMPHERE(jump[0]); - } -#endif - -OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offs1)); - -if (common->match_end_ptr != 0) - OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); -} - -static BOOL check_fast_forward_char_pair_sse2(compiler_common *common, fast_forward_char_data *chars, int max) +static BOOL check_fast_forward_char_pair_simd(compiler_common *common, fast_forward_char_data *chars, int max) { sljit_s32 i, j, max_i = 0, max_j = 0; sljit_u32 max_pri = 0; @@ -6143,15 +5564,11 @@ static BOOL check_fast_forward_char_pair_sse2(compiler_common *common, fast_forw if (max_pri == 0) return FALSE; -fast_forward_char_pair_sse2(common, max_i, chars[max_i].chars[0], chars[max_i].chars[1], max_j, chars[max_j].chars[0], chars[max_j].chars[1]); +fast_forward_char_pair_simd(common, max_i, chars[max_i].chars[0], chars[max_i].chars[1], max_j, chars[max_j].chars[0], chars[max_j].chars[1]); return TRUE; } -#endif - -#undef SSE2_COMPARE_TYPE_INDEX - -#endif +#endif /* JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD */ static void fast_forward_first_char2(compiler_common *common, PCRE2_UCHAR char1, PCRE2_UCHAR char2, sljit_s32 offset) { @@ -6179,13 +5596,11 @@ if (has_match_end) CMOV(SLJIT_GREATER, STR_END, TMP1, 0); } -#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86) && !(defined SUPPORT_VALGRIND) +#ifdef JIT_HAS_FAST_FORWARD_CHAR_SIMD -/* SSE2 accelerated first character search. */ - -if (sljit_has_cpu_feature(SLJIT_HAS_SSE2)) +if (JIT_HAS_FAST_FORWARD_CHAR_SIMD) { - fast_forward_first_char2_sse2(common, char1, char2, offset); + fast_forward_char_simd(common, char1, char2, offset); if (offset > 0) OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offset)); @@ -6292,8 +5707,8 @@ for (i = 0; i < max; i++) chars[i].last_count = (chars[i].count == 255) ? 0 : 1; } -#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86) && !(defined SUPPORT_VALGRIND) && !(defined _WIN64) -if (sljit_has_cpu_feature(SLJIT_HAS_SSE2) && check_fast_forward_char_pair_sse2(common, chars, max)) +#ifdef JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD +if (JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD && check_fast_forward_char_pair_simd(common, chars, max)) return TRUE; #endif diff --git a/src/pcre2_jit_simd_inc.h b/src/pcre2_jit_simd_inc.h new file mode 100644 index 0000000..267f18f --- /dev/null +++ b/src/pcre2_jit_simd_inc.h @@ -0,0 +1,633 @@ +/************************************************* +* Perl-Compatible Regular Expressions * +*************************************************/ + +/* PCRE is a library of functions to support regular expressions whose syntax +and semantics are as close as possible to those of the Perl 5 language. + + Written by Philip Hazel + This module by Zoltan Herczeg + Original API code Copyright (c) 1997-2012 University of Cambridge + New API code Copyright (c) 2016-2019 University of Cambridge + +----------------------------------------------------------------------------- +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + * 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. + + * Neither the name of the University of Cambridge nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 OWNER 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. +----------------------------------------------------------------------------- +*/ + +#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86) && !(defined SUPPORT_VALGRIND) + +#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 +static struct sljit_jump *jump_if_utf_char_start(struct sljit_compiler *compiler, sljit_s32 reg) +{ +#if PCRE2_CODE_UNIT_WIDTH == 8 +OP2(SLJIT_AND, reg, 0, reg, 0, SLJIT_IMM, 0xc0); +return CMP(SLJIT_NOT_EQUAL, reg, 0, SLJIT_IMM, 0x80); +#elif PCRE2_CODE_UNIT_WIDTH == 16 +OP2(SLJIT_AND, reg, 0, reg, 0, SLJIT_IMM, 0xfc00); +return CMP(SLJIT_NOT_EQUAL, reg, 0, SLJIT_IMM, 0xdc00); +#else +#error "Unknown code width" +#endif +} +#endif + +static sljit_s32 character_to_int32(PCRE2_UCHAR chr) +{ +sljit_u32 value = chr; +#if PCRE2_CODE_UNIT_WIDTH == 8 +#define SSE2_COMPARE_TYPE_INDEX 0 +return (sljit_s32)((value << 24) | (value << 16) | (value << 8) | value); +#elif PCRE2_CODE_UNIT_WIDTH == 16 +#define SSE2_COMPARE_TYPE_INDEX 1 +return (sljit_s32)((value << 16) | value); +#elif PCRE2_CODE_UNIT_WIDTH == 32 +#define SSE2_COMPARE_TYPE_INDEX 2 +return (sljit_s32)(value); +#else +#error "Unsupported unit width" +#endif +} + +static void load_from_mem_sse2(struct sljit_compiler *compiler, sljit_s32 dst_xmm_reg, sljit_s32 src_general_reg, sljit_s8 offset) +{ +sljit_u8 instruction[5]; + +SLJIT_ASSERT(dst_xmm_reg < 8); +SLJIT_ASSERT(src_general_reg < 8); + +/* MOVDQA xmm1, xmm2/m128 */ +instruction[0] = ((sljit_u8)offset & 0xf) == 0 ? 0x66 : 0xf3; +instruction[1] = 0x0f; +instruction[2] = 0x6f; + +if (offset == 0) + { + instruction[3] = (dst_xmm_reg << 3) | src_general_reg; + sljit_emit_op_custom(compiler, instruction, 4); + return; + } + +instruction[3] = 0x40 | (dst_xmm_reg << 3) | src_general_reg; +instruction[4] = (sljit_u8)offset; +sljit_emit_op_custom(compiler, instruction, 5); +} + +typedef enum { + sse2_compare_match1, + sse2_compare_match1i, + sse2_compare_match2, +} sse2_compare_type; + +static void fast_forward_char_pair_sse2_compare(struct sljit_compiler *compiler, sse2_compare_type compare_type, + int step, sljit_s32 dst_ind, sljit_s32 cmp1_ind, sljit_s32 cmp2_ind, sljit_s32 tmp_ind) +{ +sljit_u8 instruction[4]; +instruction[0] = 0x66; +instruction[1] = 0x0f; + +SLJIT_ASSERT(step >= 0 && step <= 3); + +if (compare_type != sse2_compare_match2) + { + if (step == 0) + { + if (compare_type == sse2_compare_match1i) + { + /* POR xmm1, xmm2/m128 */ + /* instruction[0] = 0x66; */ + /* instruction[1] = 0x0f; */ + instruction[2] = 0xeb; + instruction[3] = 0xc0 | (dst_ind << 3) | cmp2_ind; + sljit_emit_op_custom(compiler, instruction, 4); + } + return; + } + + if (step != 2) + return; + + /* PCMPEQB/W/D xmm1, xmm2/m128 */ + /* instruction[0] = 0x66; */ + /* instruction[1] = 0x0f; */ + instruction[2] = 0x74 + SSE2_COMPARE_TYPE_INDEX; + instruction[3] = 0xc0 | (dst_ind << 3) | cmp1_ind; + sljit_emit_op_custom(compiler, instruction, 4); + return; + } + +switch (step) + { + case 0: + /* MOVDQA xmm1, xmm2/m128 */ + /* instruction[0] = 0x66; */ + /* instruction[1] = 0x0f; */ + instruction[2] = 0x6f; + instruction[3] = 0xc0 | (tmp_ind << 3) | dst_ind; + sljit_emit_op_custom(compiler, instruction, 4); + return; + + case 1: + /* PCMPEQB/W/D xmm1, xmm2/m128 */ + /* instruction[0] = 0x66; */ + /* instruction[1] = 0x0f; */ + instruction[2] = 0x74 + SSE2_COMPARE_TYPE_INDEX; + instruction[3] = 0xc0 | (dst_ind << 3) | cmp1_ind; + sljit_emit_op_custom(compiler, instruction, 4); + return; + + case 2: + /* PCMPEQB/W/D xmm1, xmm2/m128 */ + /* instruction[0] = 0x66; */ + /* instruction[1] = 0x0f; */ + instruction[2] = 0x74 + SSE2_COMPARE_TYPE_INDEX; + instruction[3] = 0xc0 | (tmp_ind << 3) | cmp2_ind; + sljit_emit_op_custom(compiler, instruction, 4); + return; + + case 3: + /* POR xmm1, xmm2/m128 */ + /* instruction[0] = 0x66; */ + /* instruction[1] = 0x0f; */ + instruction[2] = 0xeb; + instruction[3] = 0xc0 | (dst_ind << 3) | tmp_ind; + sljit_emit_op_custom(compiler, instruction, 4); + return; + } +} + +#define JIT_HAS_FAST_FORWARD_CHAR_SIMD (sljit_has_cpu_feature(SLJIT_HAS_SSE2)) + +static void fast_forward_char_simd(compiler_common *common, PCRE2_UCHAR char1, PCRE2_UCHAR char2, sljit_s32 offset) +{ +DEFINE_COMPILER; +struct sljit_label *start; +#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 +struct sljit_label *restart; +#endif +struct sljit_jump *quit; +struct sljit_jump *partial_quit[2]; +sse2_compare_type compare_type = sse2_compare_match1; +sljit_u8 instruction[8]; +sljit_s32 tmp1_reg_ind = sljit_get_register_index(TMP1); +sljit_s32 str_ptr_reg_ind = sljit_get_register_index(STR_PTR); +sljit_s32 data_ind = 0; +sljit_s32 tmp_ind = 1; +sljit_s32 cmp1_ind = 2; +sljit_s32 cmp2_ind = 3; +sljit_u32 bit = 0; +int i; + +SLJIT_UNUSED_ARG(offset); + +if (char1 != char2) + { + bit = char1 ^ char2; + compare_type = sse2_compare_match1i; + + if (!is_powerof2(bit)) + { + bit = 0; + compare_type = sse2_compare_match2; + } + } + +partial_quit[0] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); +if (common->mode == PCRE2_JIT_COMPLETE) + add_jump(compiler, &common->failed_match, partial_quit[0]); + +/* First part (unaligned start) */ + +OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1 | bit)); + +SLJIT_ASSERT(tmp1_reg_ind < 8); + +/* MOVD xmm, r/m32 */ +instruction[0] = 0x66; +instruction[1] = 0x0f; +instruction[2] = 0x6e; +instruction[3] = 0xc0 | (cmp1_ind << 3) | tmp1_reg_ind; +sljit_emit_op_custom(compiler, instruction, 4); + +if (char1 != char2) + { + OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(bit != 0 ? bit : char2)); + + /* MOVD xmm, r/m32 */ + instruction[3] = 0xc0 | (cmp2_ind << 3) | tmp1_reg_ind; + sljit_emit_op_custom(compiler, instruction, 4); + } + +OP1(SLJIT_MOV, TMP2, 0, STR_PTR, 0); + +/* PSHUFD xmm1, xmm2/m128, imm8 */ +/* instruction[0] = 0x66; */ +/* instruction[1] = 0x0f; */ +instruction[2] = 0x70; +instruction[3] = 0xc0 | (cmp1_ind << 3) | cmp1_ind; +instruction[4] = 0; +sljit_emit_op_custom(compiler, instruction, 5); + +if (char1 != char2) + { + /* PSHUFD xmm1, xmm2/m128, imm8 */ + instruction[3] = 0xc0 | (cmp2_ind << 3) | cmp2_ind; + sljit_emit_op_custom(compiler, instruction, 5); + } + +#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 +restart = LABEL(); +#endif +OP2(SLJIT_AND, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, ~0xf); +OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xf); + +load_from_mem_sse2(compiler, data_ind, str_ptr_reg_ind, 0); +for (i = 0; i < 4; i++) + fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); + +/* PMOVMSKB reg, xmm */ +/* instruction[0] = 0x66; */ +/* instruction[1] = 0x0f; */ +instruction[2] = 0xd7; +instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | data_ind; +sljit_emit_op_custom(compiler, instruction, 4); + +OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); +OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, TMP2, 0); + +quit = CMP(SLJIT_NOT_ZERO, TMP1, 0, SLJIT_IMM, 0); + +OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0); + +/* Second part (aligned) */ +start = LABEL(); + +OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, 16); + +partial_quit[1] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); +if (common->mode == PCRE2_JIT_COMPLETE) + add_jump(compiler, &common->failed_match, partial_quit[1]); + +load_from_mem_sse2(compiler, data_ind, str_ptr_reg_ind, 0); +for (i = 0; i < 4; i++) + fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); + +/* PMOVMSKB reg, xmm */ +/* instruction[0] = 0x66; */ +/* instruction[1] = 0x0f; */ +instruction[2] = 0xd7; +instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | data_ind; +sljit_emit_op_custom(compiler, instruction, 4); + +CMPTO(SLJIT_ZERO, TMP1, 0, SLJIT_IMM, 0, start); + +JUMPHERE(quit); + +/* BSF r32, r/m32 */ +instruction[0] = 0x0f; +instruction[1] = 0xbc; +instruction[2] = 0xc0 | (tmp1_reg_ind << 3) | tmp1_reg_ind; +sljit_emit_op_custom(compiler, instruction, 3); + +OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); + +if (common->mode != PCRE2_JIT_COMPLETE) + { + JUMPHERE(partial_quit[0]); + JUMPHERE(partial_quit[1]); + OP2(SLJIT_SUB | SLJIT_SET_GREATER, SLJIT_UNUSED, 0, STR_PTR, 0, STR_END, 0); + CMOV(SLJIT_GREATER, STR_PTR, STR_END, 0); + } +else + add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); + +#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 +if (common->utf && offset > 0) + { + SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE); + + OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-offset)); + + quit = jump_if_utf_char_start(compiler, TMP1); + + OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); + add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); + OP1(SLJIT_MOV, TMP2, 0, STR_PTR, 0); + JUMPTO(SLJIT_JUMP, restart); + + JUMPHERE(quit); + } +#endif +} + +#ifndef _WIN64 + +static SLJIT_INLINE sljit_u32 max_fast_forward_char_pair_sse2_offset(void) +{ +#if PCRE2_CODE_UNIT_WIDTH == 8 +return 15; +#elif PCRE2_CODE_UNIT_WIDTH == 16 +return 7; +#elif PCRE2_CODE_UNIT_WIDTH == 32 +return 3; +#else +#error "Unsupported unit width" +#endif +} + +#define JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD (sljit_has_cpu_feature(SLJIT_HAS_SSE2)) + +static void fast_forward_char_pair_simd(compiler_common *common, sljit_s32 offs1, + PCRE2_UCHAR char1a, PCRE2_UCHAR char1b, sljit_s32 offs2, PCRE2_UCHAR char2a, PCRE2_UCHAR char2b) +{ +DEFINE_COMPILER; +sse2_compare_type compare1_type = sse2_compare_match1; +sse2_compare_type compare2_type = sse2_compare_match1; +sljit_u32 bit1 = 0; +sljit_u32 bit2 = 0; +sljit_u32 diff = IN_UCHARS(offs1 - offs2); +sljit_s32 tmp1_reg_ind = sljit_get_register_index(TMP1); +sljit_s32 tmp2_reg_ind = sljit_get_register_index(TMP2); +sljit_s32 str_ptr_reg_ind = sljit_get_register_index(STR_PTR); +sljit_s32 data1_ind = 0; +sljit_s32 data2_ind = 1; +sljit_s32 tmp1_ind = 2; +sljit_s32 tmp2_ind = 3; +sljit_s32 cmp1a_ind = 4; +sljit_s32 cmp1b_ind = 5; +sljit_s32 cmp2a_ind = 6; +sljit_s32 cmp2b_ind = 7; +struct sljit_label *start; +#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 +struct sljit_label *restart; +#endif +struct sljit_jump *jump[2]; +sljit_u8 instruction[8]; +int i; + +SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE && offs1 > offs2); +SLJIT_ASSERT(diff <= IN_UCHARS(max_fast_forward_char_pair_sse2_offset())); +SLJIT_ASSERT(tmp1_reg_ind < 8 && tmp2_reg_ind == 1); + +/* Initialize. */ +if (common->match_end_ptr != 0) + { + OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); + OP1(SLJIT_MOV, TMP3, 0, STR_END, 0); + OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(offs1 + 1)); + + OP2(SLJIT_SUB | SLJIT_SET_LESS, SLJIT_UNUSED, 0, TMP1, 0, STR_END, 0); + CMOV(SLJIT_LESS, STR_END, TMP1, 0); + } + +OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offs1)); +add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); + +/* MOVD xmm, r/m32 */ +instruction[0] = 0x66; +instruction[1] = 0x0f; +instruction[2] = 0x6e; + +if (char1a == char1b) + OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1a)); +else + { + bit1 = char1a ^ char1b; + if (is_powerof2(bit1)) + { + compare1_type = sse2_compare_match1i; + OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1a | bit1)); + OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(bit1)); + } + else + { + compare1_type = sse2_compare_match2; + bit1 = 0; + OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1a)); + OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(char1b)); + } + } + +instruction[3] = 0xc0 | (cmp1a_ind << 3) | tmp1_reg_ind; +sljit_emit_op_custom(compiler, instruction, 4); + +if (char1a != char1b) + { + instruction[3] = 0xc0 | (cmp1b_ind << 3) | tmp2_reg_ind; + sljit_emit_op_custom(compiler, instruction, 4); + } + +if (char2a == char2b) + OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char2a)); +else + { + bit2 = char2a ^ char2b; + if (is_powerof2(bit2)) + { + compare2_type = sse2_compare_match1i; + OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char2a | bit2)); + OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(bit2)); + } + else + { + compare2_type = sse2_compare_match2; + bit2 = 0; + OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char2a)); + OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(char2b)); + } + } + +instruction[3] = 0xc0 | (cmp2a_ind << 3) | tmp1_reg_ind; +sljit_emit_op_custom(compiler, instruction, 4); + +if (char2a != char2b) + { + instruction[3] = 0xc0 | (cmp2b_ind << 3) | tmp2_reg_ind; + sljit_emit_op_custom(compiler, instruction, 4); + } + +/* PSHUFD xmm1, xmm2/m128, imm8 */ +/* instruction[0] = 0x66; */ +/* instruction[1] = 0x0f; */ +instruction[2] = 0x70; +instruction[4] = 0; + +instruction[3] = 0xc0 | (cmp1a_ind << 3) | cmp1a_ind; +sljit_emit_op_custom(compiler, instruction, 5); + +if (char1a != char1b) + { + instruction[3] = 0xc0 | (cmp1b_ind << 3) | cmp1b_ind; + sljit_emit_op_custom(compiler, instruction, 5); + } + +instruction[3] = 0xc0 | (cmp2a_ind << 3) | cmp2a_ind; +sljit_emit_op_custom(compiler, instruction, 5); + +if (char2a != char2b) + { + instruction[3] = 0xc0 | (cmp2b_ind << 3) | cmp2b_ind; + sljit_emit_op_custom(compiler, instruction, 5); + } + +#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 +restart = LABEL(); +#endif + +OP2(SLJIT_SUB, TMP1, 0, STR_PTR, 0, SLJIT_IMM, diff); +OP1(SLJIT_MOV, TMP2, 0, STR_PTR, 0); +OP2(SLJIT_AND, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, ~0xf); + +load_from_mem_sse2(compiler, data1_ind, str_ptr_reg_ind, 0); + +jump[0] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, STR_PTR, 0); + +load_from_mem_sse2(compiler, data2_ind, str_ptr_reg_ind, -(sljit_s8)diff); +jump[1] = JUMP(SLJIT_JUMP); + +JUMPHERE(jump[0]); + +/* MOVDQA xmm1, xmm2/m128 */ +/* instruction[0] = 0x66; */ +/* instruction[1] = 0x0f; */ +instruction[2] = 0x6f; +instruction[3] = 0xc0 | (data2_ind << 3) | data1_ind; +sljit_emit_op_custom(compiler, instruction, 4); + +/* PSLLDQ xmm1, imm8 */ +/* instruction[0] = 0x66; */ +/* instruction[1] = 0x0f; */ +instruction[2] = 0x73; +instruction[3] = 0xc0 | (7 << 3) | data2_ind; +instruction[4] = diff; +sljit_emit_op_custom(compiler, instruction, 5); + +JUMPHERE(jump[1]); + +OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xf); + +for (i = 0; i < 4; i++) + { + fast_forward_char_pair_sse2_compare(compiler, compare2_type, i, data2_ind, cmp2a_ind, cmp2b_ind, tmp2_ind); + fast_forward_char_pair_sse2_compare(compiler, compare1_type, i, data1_ind, cmp1a_ind, cmp1b_ind, tmp1_ind); + } + +/* PAND xmm1, xmm2/m128 */ +/* instruction[0] = 0x66; */ +/* instruction[1] = 0x0f; */ +instruction[2] = 0xdb; +instruction[3] = 0xc0 | (data1_ind << 3) | data2_ind; +sljit_emit_op_custom(compiler, instruction, 4); + +/* PMOVMSKB reg, xmm */ +/* instruction[0] = 0x66; */ +/* instruction[1] = 0x0f; */ +instruction[2] = 0xd7; +instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | 0; +sljit_emit_op_custom(compiler, instruction, 4); + +/* Ignore matches before the first STR_PTR. */ +OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); +OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, TMP2, 0); + +jump[0] = CMP(SLJIT_NOT_ZERO, TMP1, 0, SLJIT_IMM, 0); + +OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0); + +/* Main loop. */ +start = LABEL(); + +OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, 16); +add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); + +load_from_mem_sse2(compiler, data1_ind, str_ptr_reg_ind, 0); +load_from_mem_sse2(compiler, data2_ind, str_ptr_reg_ind, -(sljit_s8)diff); + +for (i = 0; i < 4; i++) + { + fast_forward_char_pair_sse2_compare(compiler, compare1_type, i, data1_ind, cmp1a_ind, cmp1b_ind, tmp2_ind); + fast_forward_char_pair_sse2_compare(compiler, compare2_type, i, data2_ind, cmp2a_ind, cmp2b_ind, tmp1_ind); + } + +/* PAND xmm1, xmm2/m128 */ +/* instruction[0] = 0x66; */ +/* instruction[1] = 0x0f; */ +instruction[2] = 0xdb; +instruction[3] = 0xc0 | (data1_ind << 3) | data2_ind; +sljit_emit_op_custom(compiler, instruction, 4); + +/* PMOVMSKB reg, xmm */ +/* instruction[0] = 0x66; */ +/* instruction[1] = 0x0f; */ +instruction[2] = 0xd7; +instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | 0; +sljit_emit_op_custom(compiler, instruction, 4); + +CMPTO(SLJIT_ZERO, TMP1, 0, SLJIT_IMM, 0, start); + +JUMPHERE(jump[0]); + +/* BSF r32, r/m32 */ +instruction[0] = 0x0f; +instruction[1] = 0xbc; +instruction[2] = 0xc0 | (tmp1_reg_ind << 3) | tmp1_reg_ind; +sljit_emit_op_custom(compiler, instruction, 3); + +OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); + +add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); + +if (common->match_end_ptr != 0) + OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); + +#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 +if (common->utf) + { + OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-offs1)); + + jump[0] = jump_if_utf_char_start(compiler, TMP1); + + OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); + CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, restart); + + add_jump(compiler, &common->failed_match, JUMP(SLJIT_JUMP)); + + JUMPHERE(jump[0]); + } +#endif + +OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offs1)); + +if (common->match_end_ptr != 0) + OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); +} + +#endif /* !_WIN64 */ + +#undef SSE2_COMPARE_TYPE_INDEX + +#endif /* SLJIT_CONFIG_X86 && !SUPPORT_VALGRIND */