/*
* Stack-less Just-In-Time compiler
*
* Copyright Zoltan Herczeg ([email protected]). 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. */
#if defined(__GNUC__) || (defined(__IBM_GCC_ASM) && __IBM_GCC_ASM)
#define ASM_SLJIT_CLZ(src, dst) \
__asm__ volatile ( "cntlzd %0, %1" : "=r"(dst) : "r"(src) )
#elif defined(__xlc__)
#error "Please enable GCC syntax for inline assembly statements"
#else
#error "Must implement count leading zeroes"
#endif
/* Computes SLDI(63 - shift). */
#define PUSH_SLDI_NEG(reg, shift) \
push_inst(compiler, RLDICR | S(reg) | A(reg) | RLDI_SH(63 - shift) | RLDI_ME(shift))
static sljit_s32 load_immediate(struct sljit_compiler *compiler, sljit_s32 reg, sljit_sw 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 (((sljit_uw)imm >> 16) == 0)
return push_inst(compiler, ORI | S(TMP_ZERO) | A(reg) | IMM(imm));
if (imm <= 0x7fffffffl && imm >= -0x80000000l) {
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;
}
if (((sljit_uw)imm >> 32) == 0) {
FAIL_IF(push_inst(compiler, ORIS | S(TMP_ZERO) | A(reg) | IMM(imm >> 16)));
return (imm & 0xffff) ? push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm)) : SLJIT_SUCCESS;
}
/* Count leading zeroes. */
tmp = (sljit_uw)((imm >= 0) ? imm : ~imm);
ASM_SLJIT_CLZ(tmp, shift);
SLJIT_ASSERT(shift > 0);
shift--;
tmp = ((sljit_uw)imm << shift);
if ((tmp & ~0xffff000000000000ul) == 0) {
FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | (sljit_ins)(tmp >> 48)));
shift += 15;
return PUSH_SLDI_NEG(reg, shift);
}
if ((tmp & ~0xffffffff00000000ul) == 0) {
FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | (sljit_ins)(tmp >> 48)));
FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(tmp >> 32)));
shift += 31;
return PUSH_SLDI_NEG(reg, shift);
}
/* Cut out the 16 bit from immediate. */
shift += 15;
tmp2 = (sljit_uw)imm & (((sljit_uw)1 << (63 - shift)) - 1);
if (tmp2 <= 0xffff) {
FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | (sljit_ins)(tmp >> 48)));
FAIL_IF(PUSH_SLDI_NEG(reg, shift));
return push_inst(compiler, ORI | S(reg) | A(reg) | (sljit_ins)tmp2);
}
if (tmp2 <= 0xffffffff) {
FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48)));
FAIL_IF(PUSH_SLDI_NEG(reg, shift));
FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | (sljit_ins)(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) | (sljit_ins)(tmp >> 48)));
shift2 += 15;
shift += (63 - shift2);
FAIL_IF(PUSH_SLDI_NEG(reg, shift));
FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | (sljit_ins)(tmp2 >> 48)));
return PUSH_SLDI_NEG(reg, shift2);
}
/* The general version. */
FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | (sljit_ins)((sljit_uw)imm >> 48)));
FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm >> 32)));
FAIL_IF(PUSH_SLDI_NEG(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));
}
#undef PUSH_SLDI_NEG
#define CLRLDI(dst, src, n) \
(RLDICL | S(src) | A(dst) | RLDI_SH(0) | RLDI_MB(n))
/* 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 sljit_s32 emit_single_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
sljit_s32 dst, sljit_s32 src1, sljit_s32 src2)
{
sljit_u32 imm;
switch (op) {
case SLJIT_MOV:
case SLJIT_MOV_P:
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_U32:
case SLJIT_MOV_S32:
SLJIT_ASSERT(src1 == TMP_REG1);
if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
if (op == SLJIT_MOV_S32)
return push_inst(compiler, EXTSW | S(src2) | A(dst));
return push_inst(compiler, CLRLDI(dst, src2, 32));
}
else {
SLJIT_ASSERT(dst == src2);
}
return SLJIT_SUCCESS;
case SLJIT_MOV_U8:
case SLJIT_MOV_S8:
SLJIT_ASSERT(src1 == TMP_REG1);
if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
if (op == SLJIT_MOV_S8)
return push_inst(compiler, EXTSB | S(src2) | A(dst));
return push_inst(compiler, CLRLDI(dst, src2, 56));
}
else if ((flags & REG_DEST) && op == SLJIT_MOV_S8)
return push_inst(compiler, EXTSB | S(src2) | A(dst));
else {
SLJIT_ASSERT(dst == src2);
}
return SLJIT_SUCCESS;
case SLJIT_MOV_U16:
case SLJIT_MOV_S16:
SLJIT_ASSERT(src1 == TMP_REG1);
if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
if (op == SLJIT_MOV_S16)
return push_inst(compiler, EXTSH | S(src2) | A(dst));
return push_inst(compiler, CLRLDI(dst, src2, 48));
}
else {
SLJIT_ASSERT(dst == src2);
}
return SLJIT_SUCCESS;
case SLJIT_CLZ:
SLJIT_ASSERT(src1 == TMP_REG1);
return push_inst(compiler, ((flags & ALT_FORM1) ? CNTLZW : CNTLZD) | S(src2) | A(dst));
case SLJIT_CTZ:
SLJIT_ASSERT(src1 == TMP_REG1);
FAIL_IF(push_inst(compiler, NEG | D(TMP_REG1) | A(src2)));
FAIL_IF(push_inst(compiler, AND | S(src2) | A(dst) | B(TMP_REG1)));
FAIL_IF(push_inst(compiler, ((flags & ALT_FORM1) ? CNTLZW : CNTLZD) | S(dst) | A(dst)));
FAIL_IF(push_inst(compiler, ADDI | D(TMP_REG1) | A(dst) | IMM((flags & ALT_FORM1) ? -32 : -64)));
/* The highest bits are set, if dst < bit width, zero otherwise. */
FAIL_IF(push_inst(compiler, ((flags & ALT_FORM1) ? SRWI(27) : SRDI(58)) | S(TMP_REG1) | A(TMP_REG1)));
return push_inst(compiler, XOR | S(dst) | A(dst) | B(TMP_REG1));
case SLJIT_ADD:
if (flags & ALT_FORM1) {
if (flags & ALT_SIGN_EXT) {
FAIL_IF(push_inst(compiler, SLDI(32) | S(src1) | A(TMP_REG1)));
src1 = TMP_REG1;
FAIL_IF(push_inst(compiler, SLDI(32) | S(src2) | A(TMP_REG2)));
src2 = TMP_REG2;
}
/* Setting XER SO is not enough, CR SO is also needed. */
FAIL_IF(push_inst(compiler, ADD | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(src1) | B(src2)));
if (flags & ALT_SIGN_EXT)
return push_inst(compiler, SRDI(32) | S(dst) | A(dst));
return SLJIT_SUCCESS;
}
if (flags & ALT_FORM2) {
/* Flags does not set: BIN_IMM_EXTS unnecessary. */
SLJIT_ASSERT(src2 == TMP_REG2);
if (flags & ALT_FORM3)
return push_inst(compiler, ADDIS | D(dst) | A(src1) | compiler->imm);
imm = compiler->imm;
if (flags & ALT_FORM4) {
FAIL_IF(push_inst(compiler, ADDIS | D(dst) | A(src1) | (((imm >> 16) & 0xffff) + ((imm >> 15) & 0x1))));
src1 = dst;
}
return push_inst(compiler, ADDI | D(dst) | A(src1) | (imm & 0xffff));
}
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) {
if (flags & ALT_FORM5)
FAIL_IF(push_inst(compiler, ADDI | D(dst) | A(src1) | compiler->imm));
else
FAIL_IF(push_inst(compiler, ADD | D(dst) | A(src1) | B(src2)));
return push_inst(compiler, CMPI | A(dst) | 0);
}
if (!(flags & ALT_SET_FLAGS))
return push_inst(compiler, ADD | D(dst) | A(src1) | B(src2));
BIN_EXTS();
if (flags & ALT_FORM5)
return push_inst(compiler, ADDC | RC(ALT_SET_FLAGS) | D(dst) | A(src1) | B(src2));
return push_inst(compiler, ADD | RC(flags) | D(dst) | A(src1) | B(src2));
case SLJIT_ADDC:
BIN_EXTS();
return push_inst(compiler, ADDE | D(dst) | A(src1) | B(src2));
case SLJIT_SUB:
if (flags & ALT_FORM1) {
if (flags & ALT_FORM2) {
FAIL_IF(push_inst(compiler, CMPLI | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm));
if (!(flags & ALT_FORM3))
return SLJIT_SUCCESS;
return push_inst(compiler, ADDI | D(dst) | A(src1) | (-compiler->imm & 0xffff));
}
FAIL_IF(push_inst(compiler, CMPL | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2)));
if (!(flags & ALT_FORM3))
return SLJIT_SUCCESS;
return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
}
if (flags & ALT_FORM2) {
if (flags & ALT_FORM3) {
FAIL_IF(push_inst(compiler, CMPI | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm));
if (!(flags & ALT_FORM4))
return SLJIT_SUCCESS;
return push_inst(compiler, ADDI | D(dst) | A(src1) | (-compiler->imm & 0xffff));
}
FAIL_IF(push_inst(compiler, CMP | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2)));
if (!(flags & ALT_FORM4))
return SLJIT_SUCCESS;
return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
}
if (flags & ALT_FORM3) {
if (flags & ALT_SIGN_EXT) {
if (src1 != TMP_ZERO) {
FAIL_IF(push_inst(compiler, SLDI(32) | S(src1) | A(TMP_REG1)));
src1 = TMP_REG1;
}
if (src2 != TMP_ZERO) {
FAIL_IF(push_inst(compiler, SLDI(32) | S(src2) | A(TMP_REG2)));
src2 = TMP_REG2;
}
}
/* Setting XER SO is not enough, CR SO is also needed. */
if (src1 != TMP_ZERO)
FAIL_IF(push_inst(compiler, SUBF | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1)));
else
FAIL_IF(push_inst(compiler, NEG | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(src2)));
if (flags & ALT_SIGN_EXT)
return push_inst(compiler, SRDI(32) | S(dst) | A(dst));
return SLJIT_SUCCESS;
}
if (flags & ALT_FORM4) {
/* 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_SET_FLAGS)) {
SLJIT_ASSERT(src1 != TMP_ZERO);
return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
}
BIN_EXTS();
if (flags & ALT_FORM5)
return push_inst(compiler, SUBFC | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
if (src1 != TMP_ZERO)
return push_inst(compiler, SUBF | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
return push_inst(compiler, NEG | RC(ALT_SET_FLAGS) | D(dst) | A(src2));
case SLJIT_SUBC:
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 | OE(flags) | RC(flags) | D(dst) | A(src2) | B(src1));
return push_inst(compiler, MULLD | OE(flags) | RC(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);
imm = compiler->imm;
FAIL_IF(push_inst(compiler, ORI | S(src1) | A(dst) | IMM(imm)));
return push_inst(compiler, ORIS | S(dst) | A(dst) | IMM(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);
imm = compiler->imm;
FAIL_IF(push_inst(compiler, XORI | S(src1) | A(dst) | IMM(imm)));
return push_inst(compiler, XORIS | S(dst) | A(dst) | IMM(imm >> 16));
}
if (flags & ALT_FORM4) {
SLJIT_ASSERT(src1 == TMP_REG1);
UN_EXTS();
return push_inst(compiler, NOR | RC(flags) | S(src2) | A(dst) | B(src2));
}
return push_inst(compiler, XOR | RC(flags) | S(src1) | A(dst) | B(src2));
case SLJIT_SHL:
case SLJIT_MSHL:
if (flags & ALT_FORM1) {
SLJIT_ASSERT(src2 == TMP_REG2);
imm = compiler->imm;
if (flags & ALT_FORM2) {
imm &= 0x1f;
return push_inst(compiler, SLWI(imm) | RC(flags) | S(src1) | A(dst));
}
imm &= 0x3f;
return push_inst(compiler, SLDI(imm) | RC(flags) | S(src1) | A(dst));
}
if (op == SLJIT_MSHL) {
FAIL_IF(push_inst(compiler, ANDI | S(src2) | A(TMP_REG2) | ((flags & ALT_FORM2) ? 0x1f : 0x3f)));
src2 = TMP_REG2;
}
return push_inst(compiler, ((flags & ALT_FORM2) ? SLW : SLD) | RC(flags) | S(src1) | A(dst) | B(src2));
case SLJIT_LSHR:
case SLJIT_MLSHR:
if (flags & ALT_FORM1) {
SLJIT_ASSERT(src2 == TMP_REG2);
imm = compiler->imm;
if (flags & ALT_FORM2) {
imm &= 0x1f;
/* Since imm can be 0, SRWI() cannot be used. */
return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | RLWI_SH((32 - imm) & 0x1f) | RLWI_MBE(imm, 31));
}
imm &= 0x3f;
/* Since imm can be 0, SRDI() cannot be used. */
return push_inst(compiler, RLDICL | RC(flags) | S(src1) | A(dst) | RLDI_SH((64 - imm) & 0x3f) | RLDI_MB(imm));
}
if (op == SLJIT_MLSHR) {
FAIL_IF(push_inst(compiler, ANDI | S(src2) | A(TMP_REG2) | ((flags & ALT_FORM2) ? 0x1f : 0x3f)));
src2 = TMP_REG2;
}
return push_inst(compiler, ((flags & ALT_FORM2) ? SRW : SRD) | RC(flags) | S(src1) | A(dst) | B(src2));
case SLJIT_ASHR:
case SLJIT_MASHR:
if (flags & ALT_FORM1) {
SLJIT_ASSERT(src2 == TMP_REG2);
imm = compiler->imm;
if (flags & ALT_FORM2) {
imm &= 0x1f;
return push_inst(compiler, SRAWI | RC(flags) | S(src1) | A(dst) | (imm << 11));
}
imm &= 0x3f;
return push_inst(compiler, SRADI | RC(flags) | S(src1) | A(dst) | RLDI_SH(imm));
}
if (op == SLJIT_MASHR) {
FAIL_IF(push_inst(compiler, ANDI | S(src2) | A(TMP_REG2) | ((flags & ALT_FORM2) ? 0x1f : 0x3f)));
src2 = TMP_REG2;
}
return push_inst(compiler, ((flags & ALT_FORM2) ? SRAW : SRAD) | RC(flags) | S(src1) | A(dst) | B(src2));
case SLJIT_ROTL:
case SLJIT_ROTR:
if (flags & ALT_FORM1) {
SLJIT_ASSERT(src2 == TMP_REG2);
imm = compiler->imm;
if (op == SLJIT_ROTR)
imm = (sljit_u32)(-(sljit_s32)imm);
if (flags & ALT_FORM2) {
imm &= 0x1f;
return push_inst(compiler, RLWINM | S(src1) | A(dst) | RLWI_SH(imm) | RLWI_MBE(0, 31));
}
imm &= 0x3f;
return push_inst(compiler, RLDICL | S(src1) | A(dst) | RLDI_SH(imm));
}
if (op == SLJIT_ROTR) {
FAIL_IF(push_inst(compiler, SUBFIC | D(TMP_REG2) | A(src2) | 0));
src2 = TMP_REG2;
}
return push_inst(compiler, ((flags & ALT_FORM2) ? (RLWNM | RLWI_MBE(0, 31)) : (RLDCL | RLDI_MB(0))) | S(src1) | A(dst) | B(src2));
}
SLJIT_UNREACHABLE();
return SLJIT_SUCCESS;
}
static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src)
{
sljit_s32 arg_count = 0;
sljit_s32 word_arg_count = 0;
sljit_s32 types = 0;
sljit_s32 reg = 0;
if (src)
reg = *src & REG_MASK;
arg_types >>= SLJIT_ARG_SHIFT;
while (arg_types) {
types = (types << SLJIT_ARG_SHIFT) | (arg_types & SLJIT_ARG_MASK);
switch (arg_types & SLJIT_ARG_MASK) {
case SLJIT_ARG_TYPE_F64:
case SLJIT_ARG_TYPE_F32:
arg_count++;
break;
default:
arg_count++;
word_arg_count++;
if (arg_count != word_arg_count && arg_count == reg) {
FAIL_IF(push_inst(compiler, OR | S(reg) | A(TMP_CALL_REG) | B(reg)));
*src = TMP_CALL_REG;
}
break;
}
arg_types >>= SLJIT_ARG_SHIFT;
}
while (types) {
switch (types & SLJIT_ARG_MASK) {
case SLJIT_ARG_TYPE_F64:
case SLJIT_ARG_TYPE_F32:
arg_count--;
break;
default:
if (arg_count != word_arg_count)
FAIL_IF(push_inst(compiler, OR | S(word_arg_count) | A(arg_count) | B(word_arg_count)));
arg_count--;
word_arg_count--;
break;
}
types >>= SLJIT_ARG_SHIFT;
}
return SLJIT_SUCCESS;
}
static SLJIT_INLINE sljit_s32 emit_const(struct sljit_compiler *compiler, sljit_s32 reg, sljit_sw 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_inst(compiler, SLDI(32) | S(reg) | A(reg)));
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));
}
static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
sljit_s32 dst, sljit_sw dstw,
sljit_s32 src, sljit_sw srcw)
{
sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
if (src == SLJIT_IMM) {
if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32)
srcw = (sljit_s32)srcw;
FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
src = TMP_REG1;
} else if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32) {
if (FAST_IS_REG(src))
FAIL_IF(push_inst(compiler, EXTSW | S(src) | A(TMP_REG1)));
else
FAIL_IF(emit_op_mem(compiler, INT_DATA | SIGNED_DATA | LOAD_DATA, TMP_REG1, src, srcw, TMP_REG1));
src = TMP_REG1;
}
if (FAST_IS_REG(src)) {
FAIL_IF(push_inst(compiler, STD | S(src) | A(SLJIT_SP) | TMP_MEM_OFFSET));
FAIL_IF(push_inst(compiler, LFD | FS(TMP_FREG1) | A(SLJIT_SP) | TMP_MEM_OFFSET));
} else
FAIL_IF(emit_op_mem(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG1, src, srcw, TMP_REG1));
FAIL_IF(push_inst(compiler, FCFID | FD(dst_r) | FB(TMP_FREG1)));
if (op & SLJIT_32)
FAIL_IF(push_inst(compiler, FRSP | FD(dst_r) | FB(dst_r)));
if (dst & SLJIT_MEM)
return emit_op_mem(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, TMP_REG1);
return SLJIT_SUCCESS;
}
static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_uw(struct sljit_compiler *compiler, sljit_s32 op,
sljit_s32 dst, sljit_sw dstw,
sljit_s32 src, sljit_sw srcw)
{
sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_U32) {
if (src == SLJIT_IMM) {
FAIL_IF(load_immediate(compiler, TMP_REG1, (sljit_u32)srcw));
src = TMP_REG1;
} else {
if (FAST_IS_REG(src))
FAIL_IF(push_inst(compiler, CLRLDI(TMP_REG1, src, 32)));
else
FAIL_IF(emit_op_mem(compiler, INT_DATA | LOAD_DATA, TMP_REG1, src, srcw, TMP_REG1));
src = TMP_REG1;
}
FAIL_IF(push_inst(compiler, STD | S(src) | A(SLJIT_SP) | TMP_MEM_OFFSET));
FAIL_IF(push_inst(compiler, LFD | FS(TMP_FREG1) | A(SLJIT_SP) | TMP_MEM_OFFSET));
FAIL_IF(push_inst(compiler, FCFID | FD(dst_r) | FB(TMP_FREG1)));
} else {
if (src == SLJIT_IMM) {
FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
src = TMP_REG1;
} else if (src & SLJIT_MEM) {
FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw, TMP_REG1));
src = TMP_REG1;
}
FAIL_IF(push_inst(compiler, CMPI | CRD(0 | 1) | A(src) | 0));
FAIL_IF(push_inst(compiler, BCx | (12 << 21) | (0 << 16) | 20));
FAIL_IF(push_inst(compiler, STD | S(src) | A(SLJIT_SP) | TMP_MEM_OFFSET));
FAIL_IF(push_inst(compiler, LFD | FS(TMP_FREG1) | A(SLJIT_SP) | TMP_MEM_OFFSET));
FAIL_IF(push_inst(compiler, FCFID | FD(dst_r) | FB(TMP_FREG1)));
FAIL_IF(push_inst(compiler, Bx | ((op & SLJIT_32) ? 36 : 32)));
if (op & SLJIT_32)
FAIL_IF(push_inst(compiler, RLWINM | S(src) | A(TMP_REG2) | RLWI_SH(10) | RLWI_MBE(10, 21)));
else
FAIL_IF(push_inst(compiler, ANDI | S(src) | A(TMP_REG2) | 0x1));
/* Shift right. */
FAIL_IF(push_inst(compiler, RLDICL | S(src) | A(TMP_REG1) | RLDI_SH(63) | RLDI_MB(1)));
if (op & SLJIT_32)
FAIL_IF(push_inst(compiler, RLDICR | S(TMP_REG1) | A(TMP_REG1) | RLDI_SH(0) | RLDI_ME(53)));
FAIL_IF(push_inst(compiler, OR | S(TMP_REG1) | A(TMP_REG1) | B(TMP_REG2)));
FAIL_IF(push_inst(compiler, STD | S(TMP_REG1) | A(SLJIT_SP) | TMP_MEM_OFFSET));
FAIL_IF(push_inst(compiler, LFD | FS(TMP_FREG1) | A(SLJIT_SP) | TMP_MEM_OFFSET));
FAIL_IF(push_inst(compiler, FCFID | FD(dst_r) | FB(TMP_FREG1)));
FAIL_IF(push_inst(compiler, FADD | FD(dst_r) | FA(dst_r) | FB(dst_r)));
}
if (op & SLJIT_32)
FAIL_IF(push_inst(compiler, FRSP | FD(dst_r) | FB(dst_r)));
if (dst & SLJIT_MEM)
return emit_op_mem(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, TMP_REG1);
return SLJIT_SUCCESS;
}
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fset64(struct sljit_compiler *compiler,
sljit_s32 freg, sljit_f64 value)
{
union {
sljit_sw imm;
sljit_f64 value;
} u;
CHECK_ERROR();
CHECK(check_sljit_emit_fset64(compiler, freg, value));
u.value = value;
if (u.imm != 0)
FAIL_IF(load_immediate(compiler, TMP_REG1, u.imm));
FAIL_IF(push_inst(compiler, STD | S(u.imm != 0 ? TMP_REG1 : TMP_ZERO) | A(SLJIT_SP) | TMP_MEM_OFFSET));
return push_inst(compiler, LFD | FS(freg) | A(SLJIT_SP) | TMP_MEM_OFFSET);
}
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fcopy(struct sljit_compiler *compiler, sljit_s32 op,
sljit_s32 freg, sljit_s32 reg)
{
CHECK_ERROR();
CHECK(check_sljit_emit_fcopy(compiler, op, freg, reg));
if (GET_OPCODE(op) == SLJIT_COPY_TO_F64) {
FAIL_IF(push_inst(compiler, ((op & SLJIT_32) ? STW : STD) | S(reg) | A(SLJIT_SP) | TMP_MEM_OFFSET));
return push_inst(compiler, ((op & SLJIT_32) ? LFS : LFD) | FS(freg) | A(SLJIT_SP) | TMP_MEM_OFFSET);
}
FAIL_IF(push_inst(compiler, ((op & SLJIT_32) ? STFS : STFD) | FS(freg) | A(SLJIT_SP) | TMP_MEM_OFFSET));
return push_inst(compiler, ((op & SLJIT_32) ? LWZ : LD) | S(reg) | A(SLJIT_SP) | TMP_MEM_OFFSET);
}
SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_target, sljit_sw executable_offset)
{
sljit_ins *inst = (sljit_ins*)addr;
SLJIT_UNUSED_ARG(executable_offset);
SLJIT_UPDATE_WX_FLAGS(inst, inst + 5, 0);
inst[0] = (inst[0] & 0xffff0000u) | ((sljit_ins)(new_target >> 48) & 0xffff);
inst[1] = (inst[1] & 0xffff0000u) | ((sljit_ins)(new_target >> 32) & 0xffff);
inst[3] = (inst[3] & 0xffff0000u) | ((sljit_ins)(new_target >> 16) & 0xffff);
inst[4] = (inst[4] & 0xffff0000u) | ((sljit_ins)new_target & 0xffff);
SLJIT_UPDATE_WX_FLAGS(inst, inst + 5, 1);
inst = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
SLJIT_CACHE_FLUSH(inst, inst + 5);
}
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