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upload bullshit for armv8.2
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@ -48,12 +48,78 @@ typedef __int128_t int128;
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#define TSLIST_NODE_ALIGNMENT 16
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#define TSLIST_NODE_ALIGNMENT 16
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#ifdef POSIX
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#ifdef POSIX
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static bool bool_compare_and_suck(int128 *a, int128 *b, int128 *c)
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{
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register bool result = false;
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asm(
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"ldr x1, %0\n"
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"ldr x2, %1\n"
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"ldr x3, %2\n"
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"ldxp x4, x5, [x2]\n"
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"ldxp x6, x7, [x3]\n"
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"bg%=:\n"
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// "ldxp x3, x4, [x1]\n"
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"mov x2, x4\n"
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"mov x3, x5\n"
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"caspal x4, x5, x6, x7, [x1]\n"
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"cmp x4, x2\n"
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"ccmp x5, x3, 0, eq\n"
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"cset %w3, eq\n"
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#if 0
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"cmp x3, x5\n"
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"ccmp x4, x6, 0, eq\n"
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"bne l%=\n" // jmp
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"stlxp %w3, x7, x8, [x1]\n"
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"cbnz %w3, bg%=\n" // jmp
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"l%=:\n"
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"dmb ish\n"
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"cset %w3, eq\n"
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#endif
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: "+o"(a), "+o"(b), "+o"(c) ,"+r"(result) :: "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8"
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);
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return result;
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}
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static bool bool_compare_and_suck_suck(int128 *a, int128 *b, int128 *c)
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{
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register bool result = false;
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asm volatile(
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"ldr x1, %0\n"
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"ldr x2, %1\n"
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"ldr x3, %2\n"
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"ldxp x5, x6, [x2]\n"
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"ldxp x7, x8, [x3]\n"
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"bg%=:\n"
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"ldxp x3, x4, [x1]\n"
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"cmp x3, x5\n"
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"ccmp x4, x6, 0, eq\n"
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"bne l%=\n" // jmp
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"stlxp %w3, x7, x8, [x1]\n"
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"cbnz %w3, bg%=\n" // jmp
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"l%=:\n"
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"dmb ish\n"
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"cset %w3, eq\n"
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: "+o"(a), "+o"(b), "+o"(c), "+r"(result) :: "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8"
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);
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return result;
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}
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inline bool ThreadInterlockedAssignIf128( int128 volatile * pDest, const int128 &value, const int128 &comparand )
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inline bool ThreadInterlockedAssignIf128( int128 volatile * pDest, const int128 &value, const int128 &comparand )
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{
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{
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// We do not want the original comparand modified by the swap
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// We do not want the original comparand modified by the swap
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// so operate on a local copy.
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// so operate on a local copy.
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int128 local_comparand = comparand;
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int128 local_comparand = comparand;
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return __sync_bool_compare_and_swap( pDest, local_comparand, value );
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return bool_compare_and_suck( pDest, &local_comparand, &value );
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}
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}
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#endif
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#endif
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