Hi! While my wide_int patch bootstrapped/regtested fine when I used GCC 12 as system gcc, apparently it doesn't with GCC 11 and older or clang++. For GCC before PR96555 C++ DR1315 implementation the compiler complains about template argument involving template parameters, for clang++ the same + complains about missing needs_write_val_arg static data member in some wi::int_traits specializations.
I've so far rebuilt just stage3 gcc subdirectory with this patch and Tobias and William made it with it through stage1. Committed to unbreak build for others. 2023-10-12 Jakub Jelinek <ja...@redhat.com> PR bootstrap/111787 * tree.h (wi::int_traits <unextended_tree>::needs_write_val_arg): New static data member. (int_traits <extended_tree <N>>::needs_write_val_arg): Likewise. (wi::ints_for): Provide separate partial specializations for generic_wide_int <extended_tree <N>> and INL_CONST_PRECISION or that and CONST_PRECISION, rather than using int_traits <extended_tree <N> >::precision_type as the second template argument. * rtl.h (wi::int_traits <rtx_mode_t>::needs_write_val_arg): New static data member. * double-int.h (wi::int_traits <double_int>::needs_write_val_arg): Likewise. --- gcc/tree.h.jj 2023-10-12 16:01:04.000000000 +0200 +++ gcc/tree.h 2023-10-12 16:52:51.977954615 +0200 @@ -6237,6 +6237,7 @@ namespace wi static const enum precision_type precision_type = VAR_PRECISION; static const bool host_dependent_precision = false; static const bool is_sign_extended = false; + static const bool needs_write_val_arg = false; }; template <int N> @@ -6262,6 +6263,7 @@ namespace wi = N == ADDR_MAX_PRECISION ? INL_CONST_PRECISION : CONST_PRECISION; static const bool host_dependent_precision = false; static const bool is_sign_extended = true; + static const bool needs_write_val_arg = false; static const unsigned int precision = N; }; @@ -6293,8 +6295,14 @@ namespace wi tree_to_poly_wide_ref to_poly_wide (const_tree); template <int N> - struct ints_for <generic_wide_int <extended_tree <N> >, - int_traits <extended_tree <N> >::precision_type> + struct ints_for <generic_wide_int <extended_tree <N> >, INL_CONST_PRECISION> + { + typedef generic_wide_int <extended_tree <N> > extended; + static extended zero (const extended &); + }; + + template <int N> + struct ints_for <generic_wide_int <extended_tree <N> >, CONST_PRECISION> { typedef generic_wide_int <extended_tree <N> > extended; static extended zero (const extended &); @@ -6532,8 +6540,15 @@ wi::to_poly_wide (const_tree t) template <int N> inline generic_wide_int <wi::extended_tree <N> > wi::ints_for <generic_wide_int <wi::extended_tree <N> >, - wi::int_traits <wi::extended_tree <N> >::precision_type - >::zero (const extended &x) + wi::INL_CONST_PRECISION>::zero (const extended &x) +{ + return build_zero_cst (TREE_TYPE (x.get_tree ())); +} + +template <int N> +inline generic_wide_int <wi::extended_tree <N> > +wi::ints_for <generic_wide_int <wi::extended_tree <N> >, + wi::CONST_PRECISION>::zero (const extended &x) { return build_zero_cst (TREE_TYPE (x.get_tree ())); } --- gcc/rtl.h.jj 2023-09-29 22:04:44.463012421 +0200 +++ gcc/rtl.h 2023-10-12 16:54:59.915240074 +0200 @@ -2270,6 +2270,7 @@ namespace wi /* This ought to be true, except for the special case that BImode is canonicalized to STORE_FLAG_VALUE, which might be 1. */ static const bool is_sign_extended = false; + static const bool needs_write_val_arg = false; static unsigned int get_precision (const rtx_mode_t &); static wi::storage_ref decompose (HOST_WIDE_INT *, unsigned int, const rtx_mode_t &); --- gcc/double-int.h.jj 2023-10-12 16:01:04.260164202 +0200 +++ gcc/double-int.h 2023-10-12 16:53:41.401292272 +0200 @@ -442,6 +442,7 @@ namespace wi { static const enum precision_type precision_type = INL_CONST_PRECISION; static const bool host_dependent_precision = true; + static const bool needs_write_val_arg = false; static const unsigned int precision = HOST_BITS_PER_DOUBLE_INT; static unsigned int get_precision (const double_int &); static wi::storage_ref decompose (HOST_WIDE_INT *, unsigned int, Jakub