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Add wide integer aka 'w' rtx format support to int iterators so that machine description can iterate over `const_int' expressions. This is made by expanding standard integer aka 'i' format support, observing that any standard integer already present in any of our existing RTL code will also fit into HOST_WIDE_INT, so there is no need for a separate handler. Any truncation of the number parsed is made by the caller. An assumption is made however that no place relies on capping out of range values to INT_MAX. Now the 'p' format is handled explicitly rather than being implied by rtx being a SUBREG, so actually assert that it is, just to play safe. gcc/ * read-rtl.c: Add a page-feed separator at the start of iterator code. (struct iterator_group): Change the return type to HOST_WIDE_INT for the `find_builtin' member. Likewise the second parameter type for the `apply_iterator' member. (atoll) [!HAVE_ATOQ]: Reorder. (find_mode, find_code): Change the return type to HOST_WIDE_INT. (apply_mode_iterator, apply_code_iterator) (apply_subst_iterator): Change the second parameter type to HOST_WIDE_INT. (find_int): Handle input suitable for HOST_WIDE_INT output. (apply_int_iterator): Rewrite in terms of explicit format interpretation. (rtx_reader::read_rtx_operand) <'w'>: Fold into... <'i', 'n', 'p'>: ... this. * doc/md.texi (Int Iterators): Document 'w' rtx format support.
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