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As discussed in <https://gcc.gnu.org/pipermail/gcc-patches/2026-January/705756.html>, we shouldn't walk BIND_EXPR_VARS in check_out_of_consteval_use_r, but BIND_EXPR_BODY should still be walked. The IF_STMT is there so that we don't emit bogus errors in "if consteval" branches, as tested in expr12.C. gcc/cp/ChangeLog: * reflect.cc (check_out_of_consteval_use_r): Walk BIND_EXPR_BODY. For IF_STMT_CONSTEVAL_P, only walk the ELSE_CLAUSE. For IF_STMT_CONSTEXPR_P, only walk the THEN_ and ELSE_CLAUSE. gcc/testsuite/ChangeLog: * g++.dg/reflect/expr11.C: Test more if constexpr. * g++.dg/reflect/expr12.C: Adjust test. Reviewed-by: Jason Merrill <jason@redhat.com>
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