aa4db31dd2
As the testcase shows, calling cp_build_bit_cast in tsubst_copy doesn't seem to be a good idea, because tsubst_copy might not really make the operand non-dependent, but as processing_template_decl can be 0, type_dependent_expression_p will return false and then cp_build_bit_cast assumes the type is non-NULL and non-dependent. So, this patch just follows what is done e.g. for NOP_EXPR etc. and just builds some tree in tsubst_copy, and only calls the semantics.c function from tsubst_copy_and_build. 2021-01-07 Jakub Jelinek <jakub@redhat.com> PR c++/98329 * pt.c (tsubst_copy) <case BIT_CAST_EXPR>: Don't call cp_build_bit_cast here, instead just build_min a BIT_CAST_EXPR and set its location. (tsubst_copy_and_build): Handle BIT_CAST_EXPR. * g++.dg/cpp2a/bit-cast10.C: New test. |
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