diff options
Diffstat (limited to 'src/3rdparty/pcre/sljit/sljitNativePPC_64.c')
-rw-r--r-- | src/3rdparty/pcre/sljit/sljitNativePPC_64.c | 428 |
1 files changed, 428 insertions, 0 deletions
diff --git a/src/3rdparty/pcre/sljit/sljitNativePPC_64.c b/src/3rdparty/pcre/sljit/sljitNativePPC_64.c new file mode 100644 index 0000000000..cc2ae37eb9 --- /dev/null +++ b/src/3rdparty/pcre/sljit/sljitNativePPC_64.c @@ -0,0 +1,428 @@ +/* + * 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. + */ + +/* ppc 64-bit arch dependent functions. */ + +#ifdef __GNUC__ +#define ASM_SLJIT_CLZ(src, dst) \ + asm volatile ( "cntlzd %0, %1" : "=r"(dst) : "r"(src) ) +#else +#error "Must implement count leading zeroes" +#endif + +#define RLDI(dst, src, sh, mb, type) \ + (HI(30) | S(src) | A(dst) | ((type) << 2) | (((sh) & 0x1f) << 11) | (((sh) & 0x20) >> 4) | (((mb) & 0x1f) << 6) | ((mb) & 0x20)) + +#define PUSH_RLDICR(reg, shift) \ + push_inst(compiler, RLDI(reg, reg, 63 - shift, shift, 1)) + +static int load_immediate(struct sljit_compiler *compiler, int reg, sljit_w imm) +{ + sljit_uw tmp; + sljit_uw shift; + sljit_uw tmp2; + sljit_uw shift2; + + if (imm <= SIMM_MAX && imm >= SIMM_MIN) + return push_inst(compiler, ADDI | D(reg) | A(0) | IMM(imm)); + + if (!(imm & ~0xffff)) + return push_inst(compiler, ORI | S(ZERO_REG) | A(reg) | IMM(imm)); + + if (imm <= SLJIT_W(0x7fffffff) && imm >= SLJIT_W(-0x80000000)) { + FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(imm >> 16))); + return (imm & 0xffff) ? push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm)) : SLJIT_SUCCESS; + } + + /* Count leading zeroes. */ + tmp = (imm >= 0) ? imm : ~imm; + ASM_SLJIT_CLZ(tmp, shift); + SLJIT_ASSERT(shift > 0); + shift--; + tmp = (imm << shift); + + if ((tmp & ~0xffff000000000000ul) == 0) { + FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48))); + shift += 15; + return PUSH_RLDICR(reg, shift); + } + + if ((tmp & ~0xffffffff00000000ul) == 0) { + FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(tmp >> 48))); + FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(tmp >> 32))); + shift += 31; + return PUSH_RLDICR(reg, shift); + } + + /* Cut out the 16 bit from immediate. */ + shift += 15; + tmp2 = imm & ((1ul << (63 - shift)) - 1); + + if (tmp2 <= 0xffff) { + FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48))); + FAIL_IF(PUSH_RLDICR(reg, shift)); + return push_inst(compiler, ORI | S(reg) | A(reg) | tmp2); + } + + if (tmp2 <= 0xffffffff) { + FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48))); + FAIL_IF(PUSH_RLDICR(reg, shift)); + FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | (tmp2 >> 16))); + return (imm & 0xffff) ? push_inst(compiler, ORI | S(reg) | A(reg) | IMM(tmp2)) : SLJIT_SUCCESS; + } + + ASM_SLJIT_CLZ(tmp2, shift2); + tmp2 <<= shift2; + + if ((tmp2 & ~0xffff000000000000ul) == 0) { + FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48))); + shift2 += 15; + shift += (63 - shift2); + FAIL_IF(PUSH_RLDICR(reg, shift)); + FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | (tmp2 >> 48))); + return PUSH_RLDICR(reg, shift2); + } + + /* The general version. */ + FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(imm >> 48))); + FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm >> 32))); + FAIL_IF(PUSH_RLDICR(reg, 31)); + FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | IMM(imm >> 16))); + return push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm)); +} + +/* Simplified mnemonics: clrldi. */ +#define INS_CLEAR_LEFT(dst, src, from) \ + (RLDICL | S(src) | A(dst) | ((from) << 6) | (1 << 5)) + +/* Sign extension for integer operations. */ +#define UN_EXTS() \ + if ((flags & (ALT_SIGN_EXT | REG2_SOURCE)) == (ALT_SIGN_EXT | REG2_SOURCE)) { \ + FAIL_IF(push_inst(compiler, EXTSW | S(src2) | A(TMP_REG2))); \ + src2 = TMP_REG2; \ + } + +#define BIN_EXTS() \ + if (flags & ALT_SIGN_EXT) { \ + if (flags & REG1_SOURCE) { \ + FAIL_IF(push_inst(compiler, EXTSW | S(src1) | A(TMP_REG1))); \ + src1 = TMP_REG1; \ + } \ + if (flags & REG2_SOURCE) { \ + FAIL_IF(push_inst(compiler, EXTSW | S(src2) | A(TMP_REG2))); \ + src2 = TMP_REG2; \ + } \ + } + +#define BIN_IMM_EXTS() \ + if ((flags & (ALT_SIGN_EXT | REG1_SOURCE)) == (ALT_SIGN_EXT | REG1_SOURCE)) { \ + FAIL_IF(push_inst(compiler, EXTSW | S(src1) | A(TMP_REG1))); \ + src1 = TMP_REG1; \ + } + +static SLJIT_INLINE int emit_single_op(struct sljit_compiler *compiler, int op, int flags, + int dst, int src1, int src2) +{ + switch (op) { + case SLJIT_ADD: + if (flags & ALT_FORM1) { + /* Flags does not set: BIN_IMM_EXTS unnecessary. */ + SLJIT_ASSERT(src2 == TMP_REG2); + return push_inst(compiler, ADDI | D(dst) | A(src1) | compiler->imm); + } + if (flags & ALT_FORM2) { + /* Flags does not set: BIN_IMM_EXTS unnecessary. */ + SLJIT_ASSERT(src2 == TMP_REG2); + return push_inst(compiler, ADDIS | D(dst) | A(src1) | compiler->imm); + } + if (flags & ALT_FORM3) { + SLJIT_ASSERT(src2 == TMP_REG2); + BIN_IMM_EXTS(); + return push_inst(compiler, ADDIC | D(dst) | A(src1) | compiler->imm); + } + if (flags & ALT_FORM4) { + /* Flags does not set: BIN_IMM_EXTS unnecessary. */ + FAIL_IF(push_inst(compiler, ADDI | D(dst) | A(src1) | (compiler->imm & 0xffff))); + return push_inst(compiler, ADDIS | D(dst) | A(dst) | (((compiler->imm >> 16) & 0xffff) + ((compiler->imm >> 15) & 0x1))); + } + if (!(flags & ALT_SET_FLAGS)) + return push_inst(compiler, ADD | D(dst) | A(src1) | B(src2)); + BIN_EXTS(); + return push_inst(compiler, ADDC | OERC(ALT_SET_FLAGS) | D(dst) | A(src1) | B(src2)); + + case SLJIT_ADDC: + if (flags & ALT_FORM1) { + FAIL_IF(push_inst(compiler, MFXER | S(0))); + FAIL_IF(push_inst(compiler, ADDE | D(dst) | A(src1) | B(src2))); + return push_inst(compiler, MTXER | S(0)); + } + BIN_EXTS(); + return push_inst(compiler, ADDE | D(dst) | A(src1) | B(src2)); + + case SLJIT_SUB: + if (flags & ALT_FORM1) { + /* Flags does not set: BIN_IMM_EXTS unnecessary. */ + SLJIT_ASSERT(src2 == TMP_REG2); + return push_inst(compiler, SUBFIC | D(dst) | A(src1) | compiler->imm); + } + if (flags & (ALT_FORM2 | ALT_FORM3)) { + SLJIT_ASSERT(src2 == TMP_REG2); + if (flags & ALT_FORM2) + FAIL_IF(push_inst(compiler, CMPI | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm)); + if (flags & ALT_FORM3) + return push_inst(compiler, CMPLI | CRD(4 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm); + return SLJIT_SUCCESS; + } + if (flags & (ALT_FORM4 | ALT_FORM5)) { + if (flags & ALT_FORM4) + FAIL_IF(push_inst(compiler, CMPL | CRD(4 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2))); + if (flags & ALT_FORM5) + return push_inst(compiler, CMP | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2)); + return SLJIT_SUCCESS; + } + if (!(flags & ALT_SET_FLAGS)) + return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1)); + BIN_EXTS(); + if (flags & ALT_FORM6) + FAIL_IF(push_inst(compiler, CMPL | CRD(4 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2))); + return push_inst(compiler, SUBFC | OERC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1)); + + case SLJIT_SUBC: + if (flags & ALT_FORM1) { + FAIL_IF(push_inst(compiler, MFXER | S(0))); + FAIL_IF(push_inst(compiler, SUBFE | D(dst) | A(src2) | B(src1))); + return push_inst(compiler, MTXER | S(0)); + } + BIN_EXTS(); + return push_inst(compiler, SUBFE | D(dst) | A(src2) | B(src1)); + + case SLJIT_MUL: + if (flags & ALT_FORM1) { + SLJIT_ASSERT(src2 == TMP_REG2); + return push_inst(compiler, MULLI | D(dst) | A(src1) | compiler->imm); + } + BIN_EXTS(); + if (flags & ALT_FORM2) + return push_inst(compiler, MULLW | OERC(flags) | D(dst) | A(src2) | B(src1)); + return push_inst(compiler, MULLD | OERC(flags) | D(dst) | A(src2) | B(src1)); + + case SLJIT_AND: + if (flags & ALT_FORM1) { + SLJIT_ASSERT(src2 == TMP_REG2); + return push_inst(compiler, ANDI | S(src1) | A(dst) | compiler->imm); + } + if (flags & ALT_FORM2) { + SLJIT_ASSERT(src2 == TMP_REG2); + return push_inst(compiler, ANDIS | S(src1) | A(dst) | compiler->imm); + } + return push_inst(compiler, AND | RC(flags) | S(src1) | A(dst) | B(src2)); + + case SLJIT_OR: + if (flags & ALT_FORM1) { + SLJIT_ASSERT(src2 == TMP_REG2); + return push_inst(compiler, ORI | S(src1) | A(dst) | compiler->imm); + } + if (flags & ALT_FORM2) { + SLJIT_ASSERT(src2 == TMP_REG2); + return push_inst(compiler, ORIS | S(src1) | A(dst) | compiler->imm); + } + if (flags & ALT_FORM3) { + SLJIT_ASSERT(src2 == TMP_REG2); + FAIL_IF(push_inst(compiler, ORI | S(src1) | A(dst) | IMM(compiler->imm))); + return push_inst(compiler, ORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16)); + } + return push_inst(compiler, OR | RC(flags) | S(src1) | A(dst) | B(src2)); + + case SLJIT_XOR: + if (flags & ALT_FORM1) { + SLJIT_ASSERT(src2 == TMP_REG2); + return push_inst(compiler, XORI | S(src1) | A(dst) | compiler->imm); + } + if (flags & ALT_FORM2) { + SLJIT_ASSERT(src2 == TMP_REG2); + return push_inst(compiler, XORIS | S(src1) | A(dst) | compiler->imm); + } + if (flags & ALT_FORM3) { + SLJIT_ASSERT(src2 == TMP_REG2); + FAIL_IF(push_inst(compiler, XORI | S(src1) | A(dst) | IMM(compiler->imm))); + return push_inst(compiler, XORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16)); + } + return push_inst(compiler, XOR | RC(flags) | S(src1) | A(dst) | B(src2)); + + case SLJIT_SHL: + if (flags & ALT_FORM1) { + SLJIT_ASSERT(src2 == TMP_REG2); + if (flags & ALT_FORM2) { + compiler->imm &= 0x1f; + return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11) | ((31 - compiler->imm) << 1)); + } + else { + compiler->imm &= 0x3f; + return push_inst(compiler, RLDI(dst, src1, compiler->imm, 63 - compiler->imm, 1) | RC(flags)); + } + } + if (flags & ALT_FORM2) + return push_inst(compiler, SLW | RC(flags) | S(src1) | A(dst) | B(src2)); + return push_inst(compiler, SLD | RC(flags) | S(src1) | A(dst) | B(src2)); + + case SLJIT_LSHR: + if (flags & ALT_FORM1) { + SLJIT_ASSERT(src2 == TMP_REG2); + if (flags & ALT_FORM2) { + compiler->imm &= 0x1f; + return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (((32 - compiler->imm) & 0x1f) << 11) | (compiler->imm << 6) | (31 << 1)); + } + else { + compiler->imm &= 0x3f; + return push_inst(compiler, RLDI(dst, src1, 64 - compiler->imm, compiler->imm, 0) | RC(flags)); + } + } + if (flags & ALT_FORM2) + return push_inst(compiler, SRW | RC(flags) | S(src1) | A(dst) | B(src2)); + return push_inst(compiler, SRD | RC(flags) | S(src1) | A(dst) | B(src2)); + + case SLJIT_ASHR: + if (flags & ALT_FORM1) { + SLJIT_ASSERT(src2 == TMP_REG2); + if (flags & ALT_FORM2) { + compiler->imm &= 0x1f; + return push_inst(compiler, SRAWI | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11)); + } + else { + compiler->imm &= 0x3f; + return push_inst(compiler, SRADI | RC(flags) | S(src1) | A(dst) | ((compiler->imm & 0x1f) << 11) | ((compiler->imm & 0x20) >> 4)); + } + } + if (flags & ALT_FORM2) + return push_inst(compiler, SRAW | RC(flags) | S(src1) | A(dst) | B(src2)); + return push_inst(compiler, SRAD | RC(flags) | S(src1) | A(dst) | B(src2)); + + case SLJIT_MOV: + SLJIT_ASSERT(src1 == TMP_REG1); + if (dst != src2) + return push_inst(compiler, OR | S(src2) | A(dst) | B(src2)); + return SLJIT_SUCCESS; + + case SLJIT_MOV_UI: + case SLJIT_MOV_SI: + SLJIT_ASSERT(src1 == TMP_REG1); + if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) { + if (op == SLJIT_MOV_SI) + return push_inst(compiler, EXTSW | S(src2) | A(dst)); + return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 0)); + } + else if (dst != src2) + SLJIT_ASSERT_STOP(); + 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) + return push_inst(compiler, EXTSB | S(src2) | A(dst)); + return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 24)); + } + else if ((flags & REG_DEST) && op == SLJIT_MOV_SB) + return push_inst(compiler, EXTSB | S(src2) | A(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) + return push_inst(compiler, EXTSH | S(src2) | A(dst)); + return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 16)); + } + else if (dst != src2) + SLJIT_ASSERT_STOP(); + return SLJIT_SUCCESS; + + case SLJIT_NOT: + SLJIT_ASSERT(src1 == TMP_REG1); + UN_EXTS(); + return push_inst(compiler, NOR | RC(flags) | S(src2) | A(dst) | B(src2)); + + case SLJIT_NEG: + SLJIT_ASSERT(src1 == TMP_REG1); + UN_EXTS(); + return push_inst(compiler, NEG | OERC(flags) | D(dst) | A(src2)); + + case SLJIT_CLZ: + SLJIT_ASSERT(src1 == TMP_REG1); + if (flags & ALT_FORM1) + return push_inst(compiler, CNTLZW | RC(flags) | S(src2) | A(dst)); + return push_inst(compiler, CNTLZD | RC(flags) | S(src2) | A(dst)); + } + + SLJIT_ASSERT_STOP(); + return SLJIT_SUCCESS; +} + +static SLJIT_INLINE int emit_const(struct sljit_compiler *compiler, int reg, sljit_w init_value) +{ + FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(init_value >> 48))); + FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(init_value >> 32))); + FAIL_IF(PUSH_RLDICR(reg, 31)); + FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | IMM(init_value >> 16))); + return push_inst(compiler, ORI | S(reg) | A(reg) | IMM(init_value)); +} + +SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr) +{ + sljit_ins *inst = (sljit_ins*)addr; + + inst[0] = (inst[0] & 0xffff0000) | ((new_addr >> 48) & 0xffff); + inst[1] = (inst[1] & 0xffff0000) | ((new_addr >> 32) & 0xffff); + inst[3] = (inst[3] & 0xffff0000) | ((new_addr >> 16) & 0xffff); + inst[4] = (inst[4] & 0xffff0000) | (new_addr & 0xffff); + SLJIT_CACHE_FLUSH(inst, inst + 5); +} + +SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant) +{ + sljit_ins *inst = (sljit_ins*)addr; + + inst[0] = (inst[0] & 0xffff0000) | ((new_constant >> 48) & 0xffff); + inst[1] = (inst[1] & 0xffff0000) | ((new_constant >> 32) & 0xffff); + inst[3] = (inst[3] & 0xffff0000) | ((new_constant >> 16) & 0xffff); + inst[4] = (inst[4] & 0xffff0000) | (new_constant & 0xffff); + SLJIT_CACHE_FLUSH(inst, inst + 5); +} + +SLJIT_API_FUNC_ATTRIBUTE void sljit_set_function_context(void** func_ptr, struct sljit_function_context* context, sljit_w addr, void* func) +{ + sljit_w* ptrs; + if (func_ptr) + *func_ptr = (void*)context; + ptrs = (sljit_w*)func; + context->addr = addr ? addr : ptrs[0]; + context->r2 = ptrs[1]; + context->r11 = ptrs[2]; +} |