--- embedaddon/pcre/sljit/sljitNativeMIPS_32.c 2012/02/21 23:50:25 1.1.1.2 +++ embedaddon/pcre/sljit/sljitNativeMIPS_32.c 2013/07/22 08:25:57 1.1.1.3 @@ -26,7 +26,7 @@ /* mips 32-bit arch dependent functions. */ -static int load_immediate(struct sljit_compiler *compiler, int dst_ar, sljit_w imm) +static sljit_si load_immediate(struct sljit_compiler *compiler, sljit_si dst_ar, sljit_sw imm) { if (!(imm & ~0xffff)) return push_inst(compiler, ORI | SA(0) | TA(dst_ar) | IMM(imm), dst_ar); @@ -66,12 +66,92 @@ static int load_immediate(struct sljit_compiler *compi FAIL_IF(push_inst(compiler, op_norm | S(src2) | T(src1) | D(dst), DR(dst))); \ } -static SLJIT_INLINE int emit_single_op(struct sljit_compiler *compiler, int op, int flags, - int dst, int src1, sljit_w src2) +static SLJIT_INLINE sljit_si emit_single_op(struct sljit_compiler *compiler, sljit_si op, sljit_si flags, + sljit_si dst, sljit_si src1, sljit_sw src2) { - int overflow_ra = 0; + sljit_si overflow_ra = 0; switch (GET_OPCODE(op)) { + case SLJIT_MOV: + case SLJIT_MOV_UI: + case SLJIT_MOV_SI: + case SLJIT_MOV_P: + SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); + if (dst != src2) + return push_inst(compiler, ADDU | S(src2) | TA(0) | D(dst), DR(dst)); + return SLJIT_SUCCESS; + + case SLJIT_MOV_UB: + case SLJIT_MOV_SB: + SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); + if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) { + if (op == SLJIT_MOV_SB) { +#if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) + return push_inst(compiler, SEB | T(src2) | D(dst), DR(dst)); +#else + FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(24), DR(dst))); + return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(24), DR(dst)); +#endif + } + return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xff), DR(dst)); + } + else if (dst != src2) + SLJIT_ASSERT_STOP(); + return SLJIT_SUCCESS; + + case SLJIT_MOV_UH: + case SLJIT_MOV_SH: + SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); + if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) { + if (op == SLJIT_MOV_SH) { +#if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) + return push_inst(compiler, SEH | T(src2) | D(dst), DR(dst)); +#else + FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(16), DR(dst))); + return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(16), DR(dst)); +#endif + } + return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xffff), DR(dst)); + } + else if (dst != src2) + SLJIT_ASSERT_STOP(); + return SLJIT_SUCCESS; + + case SLJIT_NOT: + SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); + if (op & SLJIT_SET_E) + FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); + if (CHECK_FLAGS(SLJIT_SET_E)) + FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | D(dst), DR(dst))); + return SLJIT_SUCCESS; + + case SLJIT_CLZ: + SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); +#if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) + if (op & SLJIT_SET_E) + FAIL_IF(push_inst(compiler, CLZ | S(src2) | TA(EQUAL_FLAG) | DA(EQUAL_FLAG), EQUAL_FLAG)); + if (CHECK_FLAGS(SLJIT_SET_E)) + FAIL_IF(push_inst(compiler, CLZ | S(src2) | T(dst) | D(dst), DR(dst))); +#else + if (SLJIT_UNLIKELY(flags & UNUSED_DEST)) { + FAIL_IF(push_inst(compiler, SRL | T(src2) | DA(EQUAL_FLAG) | SH_IMM(31), EQUAL_FLAG)); + return push_inst(compiler, XORI | SA(EQUAL_FLAG) | TA(EQUAL_FLAG) | IMM(1), EQUAL_FLAG); + } + /* Nearly all instructions are unmovable in the following sequence. */ + FAIL_IF(push_inst(compiler, ADDU_W | S(src2) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); + /* Check zero. */ + FAIL_IF(push_inst(compiler, BEQ | S(TMP_REG1) | TA(0) | IMM(5), UNMOVABLE_INS)); + FAIL_IF(push_inst(compiler, ORI | SA(0) | T(dst) | IMM(32), UNMOVABLE_INS)); + FAIL_IF(push_inst(compiler, ADDIU_W | SA(0) | T(dst) | IMM(-1), DR(dst))); + /* Loop for searching the highest bit. */ + FAIL_IF(push_inst(compiler, ADDIU_W | S(dst) | T(dst) | IMM(1), DR(dst))); + FAIL_IF(push_inst(compiler, BGEZ | S(TMP_REG1) | IMM(-2), UNMOVABLE_INS)); + FAIL_IF(push_inst(compiler, SLL | T(TMP_REG1) | D(TMP_REG1) | SH_IMM(1), UNMOVABLE_INS)); + if (op & SLJIT_SET_E) + return push_inst(compiler, ADDU_W | S(dst) | TA(0) | DA(EQUAL_FLAG), EQUAL_FLAG); +#endif + return SLJIT_SUCCESS; + case SLJIT_ADD: if (flags & SRC2_IMM) { if (op & SLJIT_SET_O) { @@ -293,97 +373,16 @@ static SLJIT_INLINE int emit_single_op(struct sljit_co case SLJIT_ASHR: EMIT_SHIFT(SRA, SRAV); return SLJIT_SUCCESS; - - case SLJIT_MOV: - case SLJIT_MOV_UI: - case SLJIT_MOV_SI: - SLJIT_ASSERT(src1 == TMP_REG1); - if (dst != src2) - return push_inst(compiler, ADDU | S(src2) | TA(0) | D(dst), DR(dst)); - return SLJIT_SUCCESS; - - case SLJIT_MOV_UB: - case SLJIT_MOV_SB: - SLJIT_ASSERT(src1 == TMP_REG1); - if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) { - if (op == SLJIT_MOV_SB) { -#if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) - return push_inst(compiler, SEB | T(src2) | D(dst), DR(dst)); -#else - FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(24), DR(dst))); - return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(24), DR(dst)); -#endif - } - return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xff), DR(dst)); - } - else if (dst != src2) - SLJIT_ASSERT_STOP(); - return SLJIT_SUCCESS; - - case SLJIT_MOV_UH: - case SLJIT_MOV_SH: - SLJIT_ASSERT(src1 == TMP_REG1); - if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) { - if (op == SLJIT_MOV_SH) { -#if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) - return push_inst(compiler, SEH | T(src2) | D(dst), DR(dst)); -#else - FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(16), DR(dst))); - return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(16), DR(dst)); -#endif - } - return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xffff), DR(dst)); - } - else if (dst != src2) - SLJIT_ASSERT_STOP(); - return SLJIT_SUCCESS; - - case SLJIT_NOT: - SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); - if (op & SLJIT_SET_E) - FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); - if (CHECK_FLAGS(SLJIT_SET_E)) - FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | D(dst), DR(dst))); - return SLJIT_SUCCESS; - - case SLJIT_CLZ: - SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); -#if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) - if (op & SLJIT_SET_E) - FAIL_IF(push_inst(compiler, CLZ | S(src2) | TA(EQUAL_FLAG) | DA(EQUAL_FLAG), EQUAL_FLAG)); - if (CHECK_FLAGS(SLJIT_SET_E)) - FAIL_IF(push_inst(compiler, CLZ | S(src2) | T(dst) | D(dst), DR(dst))); -#else - if (SLJIT_UNLIKELY(flags & UNUSED_DEST)) { - FAIL_IF(push_inst(compiler, SRL | T(src2) | DA(EQUAL_FLAG) | SH_IMM(31), EQUAL_FLAG)); - return push_inst(compiler, XORI | SA(EQUAL_FLAG) | TA(EQUAL_FLAG) | IMM(1), EQUAL_FLAG); - } - /* Nearly all instructions are unmovable in the following sequence. */ - FAIL_IF(push_inst(compiler, ADDU_W | S(src2) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); - /* Check zero. */ - FAIL_IF(push_inst(compiler, BEQ | S(TMP_REG1) | TA(0) | IMM(6), UNMOVABLE_INS)); - FAIL_IF(push_inst(compiler, ORI | SA(0) | T(dst) | IMM(32), UNMOVABLE_INS)); - /* Check sign bit. */ - FAIL_IF(push_inst(compiler, BLTZ | S(TMP_REG1) | IMM(4), UNMOVABLE_INS)); - FAIL_IF(push_inst(compiler, ORI | SA(0) | T(dst) | IMM(0), UNMOVABLE_INS)); - /* Loop for searching the highest bit. */ - FAIL_IF(push_inst(compiler, SLL | T(TMP_REG1) | D(TMP_REG1) | SH_IMM(1), DR(TMP_REG1))); - FAIL_IF(push_inst(compiler, BGEZ | S(TMP_REG1) | IMM(-2), UNMOVABLE_INS)); - FAIL_IF(push_inst(compiler, ADDIU_W | S(dst) | T(dst) | IMM(1), UNMOVABLE_INS)); - if (op & SLJIT_SET_E) - return push_inst(compiler, ADDU_W | S(dst) | TA(0) | DA(EQUAL_FLAG), EQUAL_FLAG); -#endif - return SLJIT_SUCCESS; } SLJIT_ASSERT_STOP(); return SLJIT_SUCCESS; } -static SLJIT_INLINE int emit_const(struct sljit_compiler *compiler, int reg, sljit_w init_value) +static SLJIT_INLINE sljit_si emit_const(struct sljit_compiler *compiler, sljit_si dst, sljit_sw init_value) { - FAIL_IF(push_inst(compiler, LUI | T(reg) | IMM(init_value >> 16), DR(reg))); - return push_inst(compiler, ORI | S(reg) | T(reg) | IMM(init_value), DR(reg)); + FAIL_IF(push_inst(compiler, LUI | T(dst) | IMM(init_value >> 16), DR(dst))); + return push_inst(compiler, ORI | S(dst) | T(dst) | IMM(init_value), DR(dst)); } SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr) @@ -395,7 +394,7 @@ SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(slji SLJIT_CACHE_FLUSH(inst, inst + 2); } -SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant) +SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant) { sljit_ins *inst = (sljit_ins*)addr;