+2000-08-15 Richard Henderson <rth@cygnus.com>
+
+ * gcc.c-torture/execute/20000815-1.c: New test.
+
2000-08-15 Joseph S. Myers <jsm28@cam.ac.uk>
* gcc.dg/c90-array-lval-2.c, gcc.dg/c90-const-expr-2.c,
--- /dev/null
+struct table_elt
+{
+ void *exp;
+ struct table_elt *next_same_hash;
+ struct table_elt *prev_same_hash;
+ struct table_elt *next_same_value;
+ struct table_elt *prev_same_value;
+ struct table_elt *first_same_value;
+ struct table_elt *related_value;
+ int cost;
+ int mode;
+ char in_memory;
+ char in_struct;
+ char is_const;
+ char flag;
+};
+
+struct write_data
+{
+ int sp : 1;
+ int var : 1;
+ int nonscalar : 1;
+ int all : 1;
+};
+
+int cse_rtx_addr_varies_p(void *);
+void remove_from_table(struct table_elt *, int);
+static struct table_elt *table[32];
+
+void
+invalidate_memory (writes)
+ struct write_data *writes;
+{
+ register int i;
+ register struct table_elt *p, *next;
+ int all = writes->all;
+ int nonscalar = writes->nonscalar;
+
+ for (i = 0; i < 31; i++)
+ for (p = table[i]; p; p = next)
+ {
+ next = p->next_same_hash;
+ if (p->in_memory
+ && (all
+ || (nonscalar && p->in_struct)
+ || cse_rtx_addr_varies_p (p->exp)))
+ remove_from_table (p, i);
+ }
+}
+
+int cse_rtx_addr_varies_p(void *x) { return 0; }
+void remove_from_table(struct table_elt *x, int y) { abort (); }
+
+int
+main()
+{
+ struct write_data writes;
+ struct table_elt elt;
+
+ __builtin_memset(&elt, 0, sizeof(elt));
+ elt.in_memory = 1;
+ table[0] = &elt;
+
+ __builtin_memset(&writes, 0, sizeof(writes));
+ writes.var = 1;
+ writes.nonscalar = 1;
+
+ invalidate_memory(&writes);
+ return 0;
+}