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sljitNativePPC_common.c
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/*
* Stack-less Just-In-Time compiler
*
* 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:
*
* 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.
*/
SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void)
{
return "PowerPC" SLJIT_CPUINFO;
}
/* Length of an instruction word.
Both for ppc-32 and ppc-64. */
typedef sljit_u32 sljit_ins;
#if ((defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) && (defined _AIX)) \
|| (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
#define SLJIT_PPC_STACK_FRAME_V2 1
#endif
#ifdef _AIX
#include <sys/cache.h>
#endif
#if (defined _CALL_ELF && _CALL_ELF == 2)
#define SLJIT_PASS_ENTRY_ADDR_TO_CALL 1
#endif
#if (defined SLJIT_CACHE_FLUSH_OWN_IMPL && SLJIT_CACHE_FLUSH_OWN_IMPL)
static void ppc_cache_flush(sljit_ins *from, sljit_ins *to)
{
#ifdef _AIX
_sync_cache_range((caddr_t)from, (int)((size_t)to - (size_t)from));
#elif defined(__GNUC__) || (defined(__IBM_GCC_ASM) && __IBM_GCC_ASM)
# if defined(_ARCH_PWR) || defined(_ARCH_PWR2)
/* Cache flush for POWER architecture. */
while (from < to) {
__asm__ volatile (
"clf 0, %0\n"
"dcs\n"
: : "r"(from)
);
from++;
}
__asm__ volatile ( "ics" );
# elif defined(_ARCH_COM) && !defined(_ARCH_PPC)
# error "Cache flush is not implemented for PowerPC/POWER common mode."
# else
/* Cache flush for PowerPC architecture. */
while (from < to) {
__asm__ volatile (
"dcbf 0, %0\n"
"sync\n"
"icbi 0, %0\n"
: : "r"(from)
);
from++;
}
__asm__ volatile ( "isync" );
# endif
# ifdef __xlc__
# warning "This file may fail to compile if -qfuncsect is used"
# endif
#elif defined(__xlc__)
#error "Please enable GCC syntax for inline assembly statements with -qasm=gcc"
#else
#error "This platform requires a cache flush implementation."
#endif /* _AIX */
}
#endif /* (defined SLJIT_CACHE_FLUSH_OWN_IMPL && SLJIT_CACHE_FLUSH_OWN_IMPL) */
#define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2)
#define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3)
#define TMP_ZERO (SLJIT_NUMBER_OF_REGISTERS + 4)
#if (defined SLJIT_PASS_ENTRY_ADDR_TO_CALL && SLJIT_PASS_ENTRY_ADDR_TO_CALL)
#define TMP_CALL_REG (SLJIT_NUMBER_OF_REGISTERS + 5)
#else
#define TMP_CALL_REG TMP_REG1
#endif
#define TMP_FREG1 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
#define TMP_FREG2 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)
static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 7] = {
0, 3, 4, 5, 6, 7, 8, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 1, 9, 10, 31, 12
};
static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 0, 13
};
/* --------------------------------------------------------------------- */
/* Instrucion forms */
/* --------------------------------------------------------------------- */
#define D(d) ((sljit_ins)reg_map[d] << 21)
#define S(s) ((sljit_ins)reg_map[s] << 21)
#define A(a) ((sljit_ins)reg_map[a] << 16)
#define B(b) ((sljit_ins)reg_map[b] << 11)
#define C(c) ((sljit_ins)reg_map[c] << 6)
#define FD(fd) ((sljit_ins)freg_map[fd] << 21)
#define FS(fs) ((sljit_ins)freg_map[fs] << 21)
#define FA(fa) ((sljit_ins)freg_map[fa] << 16)
#define FB(fb) ((sljit_ins)freg_map[fb] << 11)
#define FC(fc) ((sljit_ins)freg_map[fc] << 6)
#define IMM(imm) ((sljit_ins)(imm) & 0xffff)
#define CRD(d) ((sljit_ins)(d) << 21)
/* Instruction bit sections.
OE and Rc flag (see ALT_SET_FLAGS). */
#define OE(flags) ((flags) & ALT_SET_FLAGS)
/* Rc flag (see ALT_SET_FLAGS). */
#define RC(flags) ((sljit_ins)((flags) & ALT_SET_FLAGS) >> 10)
#define HI(opcode) ((sljit_ins)(opcode) << 26)
#define LO(opcode) ((sljit_ins)(opcode) << 1)
#define ADD (HI(31) | LO(266))
#define ADDC (HI(31) | LO(10))
#define ADDE (HI(31) | LO(138))
#define ADDI (HI(14))
#define ADDIC (HI(13))
#define ADDIS (HI(15))
#define ADDME (HI(31) | LO(234))
#define AND (HI(31) | LO(28))
#define ANDI (HI(28))
#define ANDIS (HI(29))
#define Bx (HI(18))
#define BCx (HI(16))
#define BCCTR (HI(19) | LO(528) | (3 << 11))
#define BLR (HI(19) | LO(16) | (0x14 << 21))
#if defined(_ARCH_PWR10) && _ARCH_PWR10
#define BRD (HI(31) | LO(187))
#endif /* POWER10 */
#define CNTLZD (HI(31) | LO(58))
#define CNTLZW (HI(31) | LO(26))
#define CMP (HI(31) | LO(0))
#define CMPI (HI(11))
#define CMPL (HI(31) | LO(32))
#define CMPLI (HI(10))
#define CROR (HI(19) | LO(449))
#define DCBT (HI(31) | LO(278))
#define DIVD (HI(31) | LO(489))
#define DIVDU (HI(31) | LO(457))
#define DIVW (HI(31) | LO(491))
#define DIVWU (HI(31) | LO(459))
#define EXTSB (HI(31) | LO(954))
#define EXTSH (HI(31) | LO(922))
#define EXTSW (HI(31) | LO(986))
#define FABS (HI(63) | LO(264))
#define FADD (HI(63) | LO(21))
#define FADDS (HI(59) | LO(21))
#define FCFID (HI(63) | LO(846))
#define FCMPU (HI(63) | LO(0))
#define FCTIDZ (HI(63) | LO(815))
#define FCTIWZ (HI(63) | LO(15))
#define FDIV (HI(63) | LO(18))
#define FDIVS (HI(59) | LO(18))
#define FMR (HI(63) | LO(72))
#define FMUL (HI(63) | LO(25))
#define FMULS (HI(59) | LO(25))
#define FNEG (HI(63) | LO(40))
#define FRSP (HI(63) | LO(12))
#define FSUB (HI(63) | LO(20))
#define FSUBS (HI(59) | LO(20))
#define LD (HI(58) | 0)
#define LFD (HI(50))
#define LFS (HI(48))
#define LDARX (HI(31) | LO(84))
#if defined(_ARCH_PWR7) && _ARCH_PWR7
#define LDBRX (HI(31) | LO(532))
#endif /* POWER7 */
#define LHBRX (HI(31) | LO(790))
#define LWARX (HI(31) | LO(20))
#define LWBRX (HI(31) | LO(534))
#define LWZ (HI(32))
#define MFCR (HI(31) | LO(19))
#define MFLR (HI(31) | LO(339) | 0x80000)
#define MFXER (HI(31) | LO(339) | 0x10000)
#define MTCTR (HI(31) | LO(467) | 0x90000)
#define MTLR (HI(31) | LO(467) | 0x80000)
#define MTXER (HI(31) | LO(467) | 0x10000)
#define MULHD (HI(31) | LO(73))
#define MULHDU (HI(31) | LO(9))
#define MULHW (HI(31) | LO(75))
#define MULHWU (HI(31) | LO(11))
#define MULLD (HI(31) | LO(233))
#define MULLI (HI(7))
#define MULLW (HI(31) | LO(235))
#define NEG (HI(31) | LO(104))
#define NOP (HI(24))
#define NOR (HI(31) | LO(124))
#define OR (HI(31) | LO(444))
#define ORI (HI(24))
#define ORIS (HI(25))
#define RLDCL (HI(30) | LO(8))
#define RLDICL (HI(30) | LO(0 << 1))
#define RLDICR (HI(30) | LO(1 << 1))
#define RLDIMI (HI(30) | LO(3 << 1))
#define RLWIMI (HI(20))
#define RLWINM (HI(21))
#define RLWNM (HI(23))
#define SLD (HI(31) | LO(27))
#define SLW (HI(31) | LO(24))
#define SRAD (HI(31) | LO(794))
#define SRADI (HI(31) | LO(413 << 1))
#define SRAW (HI(31) | LO(792))
#define SRAWI (HI(31) | LO(824))
#define SRD (HI(31) | LO(539))
#define SRW (HI(31) | LO(536))
#define STD (HI(62) | 0)
#if defined(_ARCH_PWR7) && _ARCH_PWR7
#define STDBRX (HI(31) | LO(660))
#endif /* POWER7 */
#define STDCX (HI(31) | LO(214))
#define STDU (HI(62) | 1)
#define STDUX (HI(31) | LO(181))
#define STFD (HI(54))
#define STFIWX (HI(31) | LO(983))
#define STFS (HI(52))
#define STHBRX (HI(31) | LO(918))
#define STW (HI(36))
#define STWBRX (HI(31) | LO(662))
#define STWCX (HI(31) | LO(150))
#define STWU (HI(37))
#define STWUX (HI(31) | LO(183))
#define SUBF (HI(31) | LO(40))
#define SUBFC (HI(31) | LO(8))
#define SUBFE (HI(31) | LO(136))
#define SUBFIC (HI(8))
#define SYNC (HI(31) | LO(598))
#define XOR (HI(31) | LO(316))
#define XORI (HI(26))
#define XORIS (HI(27))
#define SIMM_MAX (0x7fff)
#define SIMM_MIN (-0x8000)
#define UIMM_MAX (0xffff)
/* Shift helpers. */
#define RLWI_SH(sh) ((sljit_ins)(sh) << 11)
#define RLWI_MBE(mb, me) (((sljit_ins)(mb) << 6) | ((sljit_ins)(me) << 1))
#define RLDI_SH(sh) ((((sljit_ins)(sh) & 0x1f) << 11) | (((sljit_ins)(sh) & 0x20) >> 4))
#define RLDI_MB(mb) ((((sljit_ins)(mb) & 0x1f) << 6) | ((sljit_ins)(mb) & 0x20))
#define RLDI_ME(me) RLDI_MB(me)
#define SLWI(shift) (RLWINM | RLWI_SH(shift) | RLWI_MBE(0, 31 - (shift)))
#define SLDI(shift) (RLDICR | RLDI_SH(shift) | RLDI_ME(63 - (shift)))
/* shift > 0 */
#define SRWI(shift) (RLWINM | RLWI_SH(32 - (shift)) | RLWI_MBE((shift), 31))
#define SRDI(shift) (RLDICL | RLDI_SH(64 - (shift)) | RLDI_MB(shift))
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
#define SLWI_W(shift) SLWI(shift)
#define TMP_MEM_OFFSET (2 * sizeof(sljit_sw))
#else /* !SLJIT_CONFIG_PPC_32 */
#define SLWI_W(shift) SLDI(shift)
#define TMP_MEM_OFFSET (6 * sizeof(sljit_sw))
#endif /* SLJIT_CONFIG_PPC_32 */
#if (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
#define TMP_MEM_OFFSET_LO (TMP_MEM_OFFSET)
#define TMP_MEM_OFFSET_HI (TMP_MEM_OFFSET + sizeof(sljit_s32))
#define LWBRX_FIRST_REG S(TMP_REG1)
#define LWBRX_SECOND_REG S(dst)
#else /* !SLJIT_LITTLE_ENDIAN */
#define TMP_MEM_OFFSET_LO (TMP_MEM_OFFSET + sizeof(sljit_s32))
#define TMP_MEM_OFFSET_HI (TMP_MEM_OFFSET)
#define LWBRX_FIRST_REG S(dst)
#define LWBRX_SECOND_REG S(TMP_REG1)
#endif /* SLJIT_LITTLE_ENDIAN */
#if (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
SLJIT_API_FUNC_ATTRIBUTE void sljit_set_function_context(void** func_ptr, struct sljit_function_context* context, sljit_uw addr, void* func)
{
sljit_uw* ptrs;
if (func_ptr)
*func_ptr = (void*)context;
ptrs = (sljit_uw*)func;
context->addr = addr ? addr : ptrs[0];
context->r2 = ptrs[1];
context->r11 = ptrs[2];
}
#endif
static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_ins ins)
{
sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
FAIL_IF(!ptr);
*ptr = ins;
compiler->size++;
return SLJIT_SUCCESS;
}
static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code, sljit_sw executable_offset)
{
sljit_sw diff;
sljit_uw target_addr;
sljit_uw jump_addr = (sljit_uw)code_ptr;
sljit_uw orig_addr = jump->addr;
SLJIT_UNUSED_ARG(executable_offset);
jump->addr = jump_addr;
#if (defined SLJIT_PASS_ENTRY_ADDR_TO_CALL && SLJIT_PASS_ENTRY_ADDR_TO_CALL) && (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
if (jump->flags & (SLJIT_REWRITABLE_JUMP | IS_CALL))
goto exit;
#else
if (jump->flags & SLJIT_REWRITABLE_JUMP)
goto exit;
#endif
if (jump->flags & JUMP_ADDR)
target_addr = jump->u.target;
else {
SLJIT_ASSERT(jump->u.label != NULL);
target_addr = (sljit_uw)(code + jump->u.label->size) + (sljit_uw)executable_offset;
if (jump->u.label->size > orig_addr)
jump_addr = (sljit_uw)(code + orig_addr);
}
#if (defined SLJIT_PASS_ENTRY_ADDR_TO_CALL && SLJIT_PASS_ENTRY_ADDR_TO_CALL) && (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
if (jump->flags & IS_CALL)
goto keep_address;
#endif
diff = (sljit_sw)target_addr - (sljit_sw)SLJIT_ADD_EXEC_OFFSET(jump_addr, executable_offset);
if (jump->flags & IS_COND) {
if (diff <= 0x7fff && diff >= -0x8000) {
jump->flags |= PATCH_B;
return code_ptr;
}
if (target_addr <= 0xffff) {
jump->flags |= PATCH_B | PATCH_ABS_B;
return code_ptr;
}
diff -= SSIZE_OF(ins);
}
if (diff <= 0x01ffffff && diff >= -0x02000000) {
jump->flags |= PATCH_B;
} else if (target_addr <= 0x01ffffff) {
jump->flags |= PATCH_B | PATCH_ABS_B;
}
if (jump->flags & PATCH_B) {
if (!(jump->flags & IS_COND))
return code_ptr;
code_ptr[0] = BCx | (2 << 2) | ((code_ptr[0] ^ (8 << 21)) & 0x03ff0001);
code_ptr[1] = Bx;
jump->addr += sizeof(sljit_ins);
jump->flags -= IS_COND;
return code_ptr + 1;
}
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
#if (defined SLJIT_PASS_ENTRY_ADDR_TO_CALL && SLJIT_PASS_ENTRY_ADDR_TO_CALL)
keep_address:
#endif /* SLJIT_PASS_ENTRY_ADDR_TO_CALL */
if (target_addr < 0x80000000l) {
jump->flags |= PATCH_ABS32;
code_ptr[2] = MTCTR | S(TMP_CALL_REG);
code_ptr[3] = code_ptr[0];
return code_ptr + 3;
}
if (target_addr < 0x800000000000l) {
jump->flags |= PATCH_ABS48;
code_ptr[4] = MTCTR | S(TMP_CALL_REG);
code_ptr[5] = code_ptr[0];
return code_ptr + 5;
}
#endif /* SLJIT_CONFIG_PPC_64 */
exit:
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
code_ptr[2] = MTCTR | S(TMP_CALL_REG);
code_ptr[3] = code_ptr[0];
#else /* !SLJIT_CONFIG_PPC_32 */
code_ptr[5] = MTCTR | S(TMP_CALL_REG);
code_ptr[6] = code_ptr[0];
#endif /* SLJIT_CONFIG_PPC_32 */
return code_ptr + JUMP_MAX_SIZE - 1;
}
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
static SLJIT_INLINE sljit_sw mov_addr_get_length(struct sljit_jump *jump, sljit_ins *code, sljit_sw executable_offset)
{
sljit_uw addr;
SLJIT_UNUSED_ARG(executable_offset);
SLJIT_ASSERT(jump->flags < ((sljit_uw)5 << JUMP_SIZE_SHIFT));
if (jump->flags & JUMP_ADDR)
addr = jump->u.target;
else
addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code + jump->u.label->size, executable_offset);
if (addr < 0x80000000l) {
SLJIT_ASSERT(jump->flags >= ((sljit_uw)1 << JUMP_SIZE_SHIFT));
jump->flags |= PATCH_ABS32;
return 1;
}
if (addr < 0x800000000000l) {
SLJIT_ASSERT(jump->flags >= ((sljit_uw)3 << JUMP_SIZE_SHIFT));
jump->flags |= PATCH_ABS48;
return 3;
}
SLJIT_ASSERT(jump->flags >= ((sljit_uw)4 << JUMP_SIZE_SHIFT));
return 4;
}
#endif /* SLJIT_CONFIG_PPC_64 */
static void generate_jump_or_mov_addr(struct sljit_jump *jump, sljit_sw executable_offset)
{
sljit_uw flags = jump->flags;
sljit_uw addr = (flags & JUMP_ADDR) ? jump->u.target : jump->u.label->u.addr;
sljit_ins *ins = (sljit_ins*)jump->addr;
sljit_s32 reg;
SLJIT_UNUSED_ARG(executable_offset);
if (flags & PATCH_B) {
if (flags & IS_COND) {
if (!(flags & PATCH_ABS_B)) {
addr -= (sljit_uw)SLJIT_ADD_EXEC_OFFSET(ins, executable_offset);
SLJIT_ASSERT((sljit_sw)addr <= 0x7fff && (sljit_sw)addr >= -0x8000);
ins[0] = BCx | ((sljit_ins)addr & 0xfffc) | (ins[0] & 0x03ff0001);
} else {
SLJIT_ASSERT(addr <= 0xffff);
ins[0] = BCx | ((sljit_ins)addr & 0xfffc) | 0x2 | ((*ins) & 0x03ff0001);
}
return;
}
if (!(flags & PATCH_ABS_B)) {
addr -= (sljit_uw)SLJIT_ADD_EXEC_OFFSET(ins, executable_offset);
SLJIT_ASSERT((sljit_sw)addr <= 0x01ffffff && (sljit_sw)addr >= -0x02000000);
ins[0] = Bx | ((sljit_ins)addr & 0x03fffffc) | (ins[0] & 0x1);
} else {
SLJIT_ASSERT(addr <= 0x03ffffff);
ins[0] = Bx | ((sljit_ins)addr & 0x03fffffc) | 0x2 | (ins[0] & 0x1);
}
return;
}
reg = (flags & JUMP_MOV_ADDR) ? (sljit_s32)ins[0] : TMP_CALL_REG;
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
ins[0] = ADDIS | D(reg) | A(0) | IMM(addr >> 16);
ins[1] = ORI | S(reg) | A(reg) | IMM(addr);
#else /* !SLJIT_CONFIG_PPC_32 */
/* The TMP_ZERO cannot be used because it is restored for tail calls. */
if (flags & PATCH_ABS32) {
SLJIT_ASSERT(addr < 0x80000000l);
ins[0] = ADDIS | D(reg) | A(0) | IMM(addr >> 16);
ins[1] = ORI | S(reg) | A(reg) | IMM(addr);
return;
}
if (flags & PATCH_ABS48) {
SLJIT_ASSERT(addr < 0x800000000000l);
ins[0] = ADDIS | D(reg) | A(0) | IMM(addr >> 32);
ins[1] = ORI | S(reg) | A(reg) | IMM(addr >> 16);
ins[2] = SLDI(16) | S(reg) | A(reg);
ins[3] = ORI | S(reg) | A(reg) | IMM(addr);
return;
}
ins[0] = ADDIS | D(reg) | A(0) | IMM(addr >> 48);
ins[1] = ORI | S(reg) | A(reg) | IMM(addr >> 32);
ins[2] = SLDI(32) | S(reg) | A(reg);
ins[3] = ORIS | S(reg) | A(reg) | IMM(addr >> 16);
ins[4] = ORI | S(reg) | A(reg) | IMM(addr);
#endif /* SLJIT_CONFIG_PPC_32 */
}
static void reduce_code_size(struct sljit_compiler *compiler)
{
struct sljit_label *label;
struct sljit_jump *jump;
struct sljit_const *const_;
SLJIT_NEXT_DEFINE_TYPES;
sljit_uw total_size;
sljit_uw size_reduce = 0;
sljit_sw diff;
label = compiler->labels;
jump = compiler->jumps;
const_ = compiler->consts;
SLJIT_NEXT_INIT_TYPES();
while (1) {
SLJIT_GET_NEXT_MIN();
if (next_min_addr == SLJIT_MAX_ADDRESS)
break;
if (next_min_addr == next_label_size) {
label->size -= size_reduce;
label = label->next;
next_label_size = SLJIT_GET_NEXT_SIZE(label);
}
if (next_min_addr == next_const_addr) {
const_->addr -= size_reduce;
const_ = const_->next;
next_const_addr = SLJIT_GET_NEXT_ADDRESS(const_);
continue;
}
if (next_min_addr != next_jump_addr)
continue;
jump->addr -= size_reduce;
if (!(jump->flags & JUMP_MOV_ADDR)) {
total_size = JUMP_MAX_SIZE - 1;
if (!(jump->flags & SLJIT_REWRITABLE_JUMP)) {
if (jump->flags & JUMP_ADDR) {
if (jump->u.target <= 0x01ffffff)
total_size = 1 - 1;
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
else if (jump->u.target < 0x80000000l)
total_size = 4 - 1;
else if (jump->u.target < 0x800000000000l)
total_size = 6 - 1;
#endif /* SLJIT_CONFIG_PPC_64 */
} else {
/* Unit size: instruction. */
diff = (sljit_sw)jump->u.label->size - (sljit_sw)jump->addr;
if (jump->u.label->size > jump->addr) {
SLJIT_ASSERT(jump->u.label->size - size_reduce >= jump->addr);
diff -= (sljit_sw)size_reduce;
}
if (jump->flags & IS_COND) {
if (diff <= (0x7fff / SSIZE_OF(ins)) && diff >= (-0x8000 / SSIZE_OF(ins)))
total_size = 1 - 1;
else if ((diff - 1) <= (0x01ffffff / SSIZE_OF(ins)) && (diff - 1) >= (-0x02000000 / SSIZE_OF(ins)))
total_size = 2 - 1;
} else if (diff <= (0x01ffffff / SSIZE_OF(ins)) && diff >= (-0x02000000 / SSIZE_OF(ins)))
total_size = 1 - 1;
}
}
size_reduce += (JUMP_MAX_SIZE - 1) - total_size;
jump->flags |= total_size << JUMP_SIZE_SHIFT;
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
} else {
total_size = (sljit_uw)4 << JUMP_SIZE_SHIFT;
if (jump->flags & JUMP_ADDR) {
if (jump->u.target < 0x80000000l) {
total_size = (sljit_uw)1 << JUMP_SIZE_SHIFT;
size_reduce += 3;
} else if (jump->u.target < 0x800000000000l) {
total_size = (sljit_uw)3 << JUMP_SIZE_SHIFT;
size_reduce += 1;
}
}
jump->flags |= total_size;
#endif /* SLJIT_CONFIG_PPC_64 */
}
jump = jump->next;
next_jump_addr = SLJIT_GET_NEXT_ADDRESS(jump);
}
compiler->size -= size_reduce;
}
SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler, sljit_s32 options, void *exec_allocator_data)
{
struct sljit_memory_fragment *buf;
sljit_ins *code;
sljit_ins *code_ptr;
sljit_ins *buf_ptr;
sljit_ins *buf_end;
sljit_uw word_count;
#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
sljit_uw jump_addr;
#endif
SLJIT_NEXT_DEFINE_TYPES;
sljit_sw executable_offset;
struct sljit_label *label;
struct sljit_jump *jump;
struct sljit_const *const_;
CHECK_ERROR_PTR();
CHECK_PTR(check_sljit_generate_code(compiler));
reduce_code_size(compiler);
#if (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
/* add to compiler->size additional instruction space to hold the trampoline and padding */
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
compiler->size += (compiler->size & 0x1) + (sizeof(struct sljit_function_context) / sizeof(sljit_ins));
#else
compiler->size += (sizeof(struct sljit_function_context) / sizeof(sljit_ins));
#endif
#endif
code = (sljit_ins*)allocate_executable_memory(compiler->size * sizeof(sljit_ins), options, exec_allocator_data, &executable_offset);
PTR_FAIL_WITH_EXEC_IF(code);
reverse_buf(compiler);
buf = compiler->buf;
code_ptr = code;
word_count = 0;
label = compiler->labels;
jump = compiler->jumps;
const_ = compiler->consts;
SLJIT_NEXT_INIT_TYPES();
SLJIT_GET_NEXT_MIN();
do {
buf_ptr = (sljit_ins*)buf->memory;
buf_end = buf_ptr + (buf->used_size >> 2);
do {
*code_ptr = *buf_ptr++;
if (next_min_addr == word_count) {
SLJIT_ASSERT(!label || label->size >= word_count);
SLJIT_ASSERT(!jump || jump->addr >= word_count);
SLJIT_ASSERT(!const_ || const_->addr >= word_count);
/* These structures are ordered by their address. */
if (next_min_addr == next_label_size) {
/* Just recording the address. */
label->u.addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
label->size = (sljit_uw)(code_ptr - code);
label = label->next;
next_label_size = SLJIT_GET_NEXT_SIZE(label);
}
if (next_min_addr == next_jump_addr) {
if (!(jump->flags & JUMP_MOV_ADDR)) {
word_count += jump->flags >> JUMP_SIZE_SHIFT;
#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
jump_addr = (sljit_uw)code_ptr;
#endif
code_ptr = detect_jump_type(jump, code_ptr, code, executable_offset);
SLJIT_ASSERT(((sljit_uw)code_ptr - jump_addr <= (jump->flags >> JUMP_SIZE_SHIFT) * sizeof(sljit_ins)));
} else {
jump->addr = (sljit_uw)code_ptr;
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
word_count += jump->flags >> JUMP_SIZE_SHIFT;
code_ptr += mov_addr_get_length(jump, code, executable_offset);
#else /* !SLJIT_CONFIG_PPC_64 */
word_count++;
code_ptr++;
#endif /* SLJIT_CONFIG_PPC_64 */
}
jump = jump->next;
next_jump_addr = SLJIT_GET_NEXT_ADDRESS(jump);
} else if (next_min_addr == next_const_addr) {
const_->addr = (sljit_uw)code_ptr;
const_ = const_->next;
next_const_addr = SLJIT_GET_NEXT_ADDRESS(const_);
}
SLJIT_GET_NEXT_MIN();
}
code_ptr++;
word_count++;
} while (buf_ptr < buf_end);
buf = buf->next;
} while (buf);
if (label && label->size == word_count) {
label->u.addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
label->size = (sljit_uw)(code_ptr - code);
label = label->next;
}
SLJIT_ASSERT(!label);
SLJIT_ASSERT(!jump);
SLJIT_ASSERT(!const_);
#if (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
SLJIT_ASSERT(code_ptr - code <= (sljit_sw)(compiler->size - (sizeof(struct sljit_function_context) / sizeof(sljit_ins))));
#else
SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size);
#endif
jump = compiler->jumps;
while (jump) {
generate_jump_or_mov_addr(jump, executable_offset);
jump = jump->next;
}
compiler->error = SLJIT_ERR_COMPILED;
compiler->executable_offset = executable_offset;
code = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
#if (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
if (((sljit_sw)code_ptr) & 0x4)
code_ptr++;
#endif
sljit_set_function_context(NULL, (struct sljit_function_context*)code_ptr, (sljit_uw)code, (void*)sljit_generate_code);
#endif
code_ptr = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
SLJIT_CACHE_FLUSH(code, code_ptr);
SLJIT_UPDATE_WX_FLAGS(code, code_ptr, 1);
#if (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
compiler->executable_size = (sljit_uw)(code_ptr - code) * sizeof(sljit_ins) + sizeof(struct sljit_function_context);
return code_ptr;
#else
compiler->executable_size = (sljit_uw)(code_ptr - code) * sizeof(sljit_ins);
return code;
#endif
}
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type)
{
switch (feature_type) {
case SLJIT_HAS_FPU:
#ifdef SLJIT_IS_FPU_AVAILABLE
return (SLJIT_IS_FPU_AVAILABLE) != 0;
#else
/* Available by default. */
return 1;
#endif
case SLJIT_HAS_REV:
#if defined(_ARCH_PWR10) && _ARCH_PWR10
return 1;
#else /* !POWER10 */
return 2;
#endif /* POWER10 */
/* A saved register is set to a zero value. */
case SLJIT_HAS_ZERO_REGISTER:
case SLJIT_HAS_CLZ:
case SLJIT_HAS_ROT:
case SLJIT_HAS_PREFETCH:
case SLJIT_HAS_ATOMIC:
case SLJIT_HAS_MEMORY_BARRIER:
return 1;
case SLJIT_HAS_CTZ:
return 2;
default:
return 0;
}
}
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_cmp_info(sljit_s32 type)
{
switch (type) {
case SLJIT_UNORDERED_OR_EQUAL:
case SLJIT_ORDERED_NOT_EQUAL:
case SLJIT_UNORDERED_OR_LESS:
case SLJIT_ORDERED_GREATER_EQUAL:
case SLJIT_UNORDERED_OR_GREATER:
case SLJIT_ORDERED_LESS_EQUAL:
return 1;
}
return 0;
}
/* --------------------------------------------------------------------- */
/* Entry, exit */
/* --------------------------------------------------------------------- */
/* inp_flags: */
/* Creates an index in data_transfer_insts array. */
#define LOAD_DATA 0x01
#define INDEXED 0x02
#define SIGNED_DATA 0x04
#define WORD_DATA 0x00
#define BYTE_DATA 0x08
#define HALF_DATA 0x10
#define INT_DATA 0x18
/* Separates integer and floating point registers */
#define GPR_REG 0x1f
#define DOUBLE_DATA 0x20
#define MEM_MASK 0x7f
#define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_32) >> 6))
/* Other inp_flags. */
/* Integer opertion and set flags -> requires exts on 64 bit systems. */
#define ALT_SIGN_EXT 0x000100
/* This flag affects the RC() and OERC() macros. */
#define ALT_SET_FLAGS 0x000400
#define ALT_FORM1 0x001000
#define ALT_FORM2 0x002000
#define ALT_FORM3 0x004000
#define ALT_FORM4 0x008000
#define ALT_FORM5 0x010000
/* Source and destination is register. */
#define REG_DEST 0x000001
#define REG1_SOURCE 0x000002
#define REG2_SOURCE 0x000004
/*
ALT_SIGN_EXT 0x000100
ALT_SET_FLAGS 0x000200
ALT_FORM1 0x001000
...
ALT_FORM5 0x010000 */
static sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 inp_flags, sljit_s32 reg,
sljit_s32 arg, sljit_sw argw, sljit_s32 tmp_reg);
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
#include "sljitNativePPC_32.c"
#else
#include "sljitNativePPC_64.c"
#endif
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
#define STACK_STORE STW
#define STACK_LOAD LWZ
#else
#define STACK_STORE STD
#define STACK_LOAD LD
#endif
#if (defined SLJIT_PPC_STACK_FRAME_V2 && SLJIT_PPC_STACK_FRAME_V2)
#define LR_SAVE_OFFSET (2 * SSIZE_OF(sw))
#else
#define LR_SAVE_OFFSET SSIZE_OF(sw)
#endif
#define STACK_MAX_DISTANCE (0x8000 - SSIZE_OF(sw) - LR_SAVE_OFFSET)
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
sljit_s32 options, sljit_s32 arg_types,
sljit_s32 scratches, sljit_s32 saveds, sljit_s32 local_size)
{
sljit_s32 fscratches = ENTER_GET_FLOAT_REGS(scratches);
sljit_s32 fsaveds = ENTER_GET_FLOAT_REGS(saveds);
sljit_s32 i, tmp, base, offset;
sljit_s32 word_arg_count = 0;
sljit_s32 saved_arg_count = SLJIT_KEPT_SAVEDS_COUNT(options);
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
sljit_s32 arg_count = 0;
#endif
CHECK_ERROR();
CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, local_size));
set_emit_enter(compiler, options, arg_types, scratches, saveds, local_size);
scratches = ENTER_GET_REGS(scratches);
saveds = ENTER_GET_REGS(saveds);
local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds - saved_arg_count, 0)
+ GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, f64);
if (!(options & SLJIT_ENTER_REG_ARG))
local_size += SSIZE_OF(sw);
local_size = (local_size + SLJIT_LOCALS_OFFSET + 15) & ~0xf;
compiler->local_size = local_size;
FAIL_IF(push_inst(compiler, MFLR | D(0)));
base = SLJIT_SP;
offset = local_size;
if (local_size <= STACK_MAX_DISTANCE) {
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
FAIL_IF(push_inst(compiler, STWU | S(SLJIT_SP) | A(SLJIT_SP) | IMM(-local_size)));
#else
FAIL_IF(push_inst(compiler, STDU | S(SLJIT_SP) | A(SLJIT_SP) | IMM(-local_size)));
#endif
} else {
base = TMP_REG1;
FAIL_IF(push_inst(compiler, OR | S(SLJIT_SP) | A(TMP_REG1) | B(SLJIT_SP)));
FAIL_IF(load_immediate(compiler, TMP_REG2, -local_size));
#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
FAIL_IF(push_inst(compiler, STWUX | S(SLJIT_SP) | A(SLJIT_SP) | B(TMP_REG2)));
#else
FAIL_IF(push_inst(compiler, STDUX | S(SLJIT_SP) | A(SLJIT_SP) | B(TMP_REG2)));
#endif
local_size = 0;
offset = 0;
}
tmp = SLJIT_FS0 - fsaveds;
for (i = SLJIT_FS0; i > tmp; i--) {
offset -= SSIZE_OF(f64);
FAIL_IF(push_inst(compiler, STFD | FS(i) | A(base) | IMM(offset)));
}
for (i = fscratches; i >= SLJIT_FIRST_SAVED_FLOAT_REG; i--) {
offset -= SSIZE_OF(f64);
FAIL_IF(push_inst(compiler, STFD | FS(i) | A(base) | IMM(offset)));
}
if (!(options & SLJIT_ENTER_REG_ARG)) {
offset -= SSIZE_OF(sw);
FAIL_IF(push_inst(compiler, STACK_STORE | S(TMP_ZERO) | A(base) | IMM(offset)));
}
tmp = SLJIT_S0 - saveds;
for (i = SLJIT_S0 - saved_arg_count; i > tmp; i--) {
offset -= SSIZE_OF(sw);
FAIL_IF(push_inst(compiler, STACK_STORE | S(i) | A(base) | IMM(offset)));
}
for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
offset -= SSIZE_OF(sw);
FAIL_IF(push_inst(compiler, STACK_STORE | S(i) | A(base) | IMM(offset)));
}
FAIL_IF(push_inst(compiler, STACK_STORE | S(0) | A(base) | IMM(local_size + LR_SAVE_OFFSET)));
if (options & SLJIT_ENTER_REG_ARG)
return SLJIT_SUCCESS;
FAIL_IF(push_inst(compiler, ADDI | D(TMP_ZERO) | A(0) | 0));
arg_types >>= SLJIT_ARG_SHIFT;
saved_arg_count = 0;
while (arg_types > 0) {
if ((arg_types & SLJIT_ARG_MASK) < SLJIT_ARG_TYPE_F64) {
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
do {
if (!(arg_types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
tmp = SLJIT_S0 - saved_arg_count;
saved_arg_count++;
} else if (arg_count != word_arg_count)
tmp = SLJIT_R0 + word_arg_count;
else
break;
FAIL_IF(push_inst(compiler, OR | S(SLJIT_R0 + arg_count) | A(tmp) | B(SLJIT_R0 + arg_count)));
} while (0);
#else
if (!(arg_types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
FAIL_IF(push_inst(compiler, OR | S(SLJIT_R0 + word_arg_count) | A(SLJIT_S0 - saved_arg_count) | B(SLJIT_R0 + word_arg_count)));
saved_arg_count++;
}
#endif
word_arg_count++;
}
#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
arg_count++;
#endif
arg_types >>= SLJIT_ARG_SHIFT;
}
return SLJIT_SUCCESS;
}
SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
sljit_s32 options, sljit_s32 arg_types,
sljit_s32 scratches, sljit_s32 saveds, sljit_s32 local_size)
{
sljit_s32 fscratches = ENTER_GET_FLOAT_REGS(scratches);
sljit_s32 fsaveds = ENTER_GET_FLOAT_REGS(saveds);
CHECK_ERROR();
CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, local_size));
set_emit_enter(compiler, options, arg_types, scratches, saveds, local_size);