+2009-03-04 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/39339
+ * tree-sra.c (try_instantiate_multiple_fields): Make it
+ no longer ICE on the above.
+
2009-03-03 Joseph Myers <joseph@codesourcery.com>
* emit-rtl.c (adjust_address_1): Reduce offset to a signed value
--- /dev/null
+struct C
+{
+ unsigned int c;
+ struct D
+ {
+ unsigned int columns : 4;
+ unsigned int fore : 9;
+ unsigned int back : 9;
+ unsigned int fragment : 1;
+ unsigned int standout : 1;
+ unsigned int underline : 1;
+ unsigned int strikethrough : 1;
+ unsigned int reverse : 1;
+ unsigned int blink : 1;
+ unsigned int half : 1;
+ unsigned int bold : 1;
+ unsigned int invisible : 1;
+ unsigned int pad : 1;
+ } attr;
+};
+
+struct A
+{
+ struct C *data;
+ unsigned int len;
+};
+
+struct B
+{
+ struct A *cells;
+ unsigned char soft_wrapped : 1;
+};
+
+struct E
+{
+ long row, col;
+ struct C defaults;
+};
+
+__attribute__ ((noinline))
+void foo (struct E *screen, unsigned int c, int columns, struct B *row)
+{
+ struct D attr;
+ long col;
+ int i;
+ col = screen->col;
+ attr = screen->defaults.attr;
+ attr.columns = columns;
+ row->cells->data[col].c = c;
+ row->cells->data[col].attr = attr;
+ col++;
+ attr.fragment = 1;
+ for (i = 1; i < columns; i++)
+ {
+ row->cells->data[col].c = c;
+ row->cells->data[col].attr = attr;
+ col++;
+ }
+}
+
+int
+main (void)
+{
+ struct E e = {.row = 5,.col = 0,.defaults =
+ {6, {-1, -1, -1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0}} };
+ struct C c[4];
+ struct A a = { c, 4 };
+ struct B b = { &a, 1 };
+ struct D d;
+ __builtin_memset (&c, 0, sizeof c);
+ foo (&e, 65, 2, &b);
+ d = e.defaults.attr;
+ d.columns = 2;
+ if (__builtin_memcmp (&d, &c[0].attr, sizeof d))
+ __builtin_abort ();
+ d.fragment = 1;
+ if (__builtin_memcmp (&d, &c[1].attr, sizeof d))
+ __builtin_abort ();
+ return 0;
+}
+
gcc_assert (block && block->is_scalar);
var = block->replacement;
-
- if ((bit & ~alchk)
- || (HOST_WIDE_INT)size != tree_low_cst (DECL_SIZE (var), 1))
- {
- block->replacement = fold_build3 (BIT_FIELD_REF,
- TREE_TYPE (block->element), var,
- bitsize_int (size),
- bitsize_int (bit & ~alchk));
- }
-
block->in_bitfld_block = 2;
/* Add the member fields to the group, such that they access
gcc_assert (fld && fld->is_scalar && !fld->replacement);
fld->replacement = fold_build3 (BIT_FIELD_REF, field_type, var,
- DECL_SIZE (f),
+ bitsize_int (TYPE_PRECISION (field_type)),
bitsize_int
((TREE_INT_CST_LOW (DECL_FIELD_OFFSET (f))
* BITS_PER_UNIT
+ (TREE_INT_CST_LOW
- (DECL_FIELD_BIT_OFFSET (f))))
+ (DECL_FIELD_BIT_OFFSET (f)))
+ - (TREE_INT_CST_LOW
+ (TREE_OPERAND (block->element, 2))))
& ~alchk));
fld->in_bitfld_block = 1;
}