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upload bullshit for armv8.2

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nillerusr 2023-08-26 15:28:45 +03:00
parent b7bd94c52e
commit 89941c6dee
1 changed files with 67 additions and 1 deletions
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68
public/tier0/tslist.h
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@ -48,12 +48,78 @@ typedef __int128_t int128;
#define TSLIST_NODE_ALIGNMENT 16
#ifdef POSIX
static bool bool_compare_and_suck(int128 *a, int128 *b, int128 *c)
{
register bool result = false;
asm(
"ldr x1, %0\n"
"ldr x2, %1\n"
"ldr x3, %2\n"
"ldxp x4, x5, [x2]\n"
"ldxp x6, x7, [x3]\n"
"bg%=:\n"
// "ldxp x3, x4, [x1]\n"
"mov x2, x4\n"
"mov x3, x5\n"
"caspal x4, x5, x6, x7, [x1]\n"
"cmp x4, x2\n"
"ccmp x5, x3, 0, eq\n"
"cset %w3, eq\n"
#if 0
"cmp x3, x5\n"
"ccmp x4, x6, 0, eq\n"
"bne l%=\n" // jmp
"stlxp %w3, x7, x8, [x1]\n"
"cbnz %w3, bg%=\n" // jmp
"l%=:\n"
"dmb ish\n"
"cset %w3, eq\n"
#endif
: "+o"(a), "+o"(b), "+o"(c) ,"+r"(result) :: "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8"
);
return result;
}
static bool bool_compare_and_suck_suck(int128 *a, int128 *b, int128 *c)
{
register bool result = false;
asm volatile(
"ldr x1, %0\n"
"ldr x2, %1\n"
"ldr x3, %2\n"
"ldxp x5, x6, [x2]\n"
"ldxp x7, x8, [x3]\n"
"bg%=:\n"
"ldxp x3, x4, [x1]\n"
"cmp x3, x5\n"
"ccmp x4, x6, 0, eq\n"
"bne l%=\n" // jmp
"stlxp %w3, x7, x8, [x1]\n"
"cbnz %w3, bg%=\n" // jmp
"l%=:\n"
"dmb ish\n"
"cset %w3, eq\n"
: "+o"(a), "+o"(b), "+o"(c), "+r"(result) :: "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8"
);
return result;
}
inline bool ThreadInterlockedAssignIf128( int128 volatile * pDest, const int128 &value, const int128 &comparand )
{
// We do not want the original comparand modified by the swap
// so operate on a local copy.
int128 local_comparand = comparand;
return __sync_bool_compare_and_swap( pDest, local_comparand, value );
return bool_compare_and_suck( pDest, &local_comparand, &value );
}
#endif