mirror of
https://github.com/nArnoSNES/tcc-65816.git
synced 2024-05-31 22:41:28 +00:00
71 lines
1.3 KiB
C
71 lines
1.3 KiB
C
struct table_elt
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{
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void *exp;
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struct table_elt *next_same_hash;
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struct table_elt *prev_same_hash;
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struct table_elt *next_same_value;
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struct table_elt *prev_same_value;
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struct table_elt *first_same_value;
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struct table_elt *related_value;
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int cost;
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int mode;
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char in_memory;
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char in_struct;
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char is_const;
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char flag;
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};
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struct write_data
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{
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int sp : 1;
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int var : 1;
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int nonscalar : 1;
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int all : 1;
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};
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int cse_rtx_addr_varies_p(void *);
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void remove_from_table(struct table_elt *, int);
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static struct table_elt *table[32];
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void
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invalidate_memory (writes)
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struct write_data *writes;
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{
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register int i;
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register struct table_elt *p, *next;
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int all = writes->all;
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int nonscalar = writes->nonscalar;
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for (i = 0; i < 31; i++)
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for (p = table[i]; p; p = next)
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{
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next = p->next_same_hash;
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if (p->in_memory
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&& (all
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|| (nonscalar && p->in_struct)
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|| cse_rtx_addr_varies_p (p->exp)))
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remove_from_table (p, i);
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}
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}
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int cse_rtx_addr_varies_p(void *x) { return 0; }
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void remove_from_table(struct table_elt *x, int y) { abort (); }
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int
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main()
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{
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struct write_data writes;
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struct table_elt elt;
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memset(&elt, 0, sizeof(elt));
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elt.in_memory = 1;
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table[0] = &elt;
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memset(&writes, 0, sizeof(writes));
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writes.var = 1;
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writes.nonscalar = 1;
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invalidate_memory(&writes);
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return 0;
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}
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