search for: dw_tag_imported_declaration

...have a dwarf entry placed under the lexical block scope the same as appear in the source. (1) DW_TAG_subprogram (concrete) DW_AT_name (= "foo") DW_AT_low_pc DW_AT_low_high (2) LexicalBlock DW_AT_low_pc DW_AT_low_high (3) DW_TAG_imported_module DW_AT_import (=> N) (3) DW_TAG_imported_declaration DW_AT_import (=> N::D) (3) DW_TAG_typedef DW_AT_name (= "A") DW_AT_type (=> int) (3) DW_TAG_class_type DW_AT_name (= "B") (4) DW_TAG_variable DW_AT_name (= "x") DW_AT_type (= int) (3) DW_TAG_variable DW_AT_name (= "y") DW_AT_type (...

...subprogram (concrete) > > DW_AT_name (= "foo") > > DW_AT_low_pc > > DW_AT_low_high > > > > (2) LexicalBlock > > DW_AT_low_pc > > DW_AT_low_high > > > > (3) DW_TAG_imported_module > > DW_AT_import (=> N) > > > > (3) DW_TAG_imported_declaration > > DW_AT_import (=> N::D) > > > > (3) DW_TAG_typedef > > DW_AT_name (= "A") > > DW_AT_type (=> int) > > > > (3) DW_TAG_class_type > > DW_AT_name (= "B") > > > > (4) DW_TAG_variable > > DW_AT_name (= &quot...

..._module Tag = 1, Count = 2747, Ops = 21976, Name = DW_TAG_array_type Tag = 46, Count = 1341021, Ops = 12069189, Name = DW_TAG_subprogram Tag = 257, Count = 4373879, Ops = 20785065, Name = DW_TAG_arg_variable Tag = 8, Count = 2246, Ops = 6738, Name = DW_TAG_imported_declaration Tag = 53, Count = 57, Ops = 228, Name = DW_TAG_volatile_type Tag = 15, Count = 55163, Ops = 220652, Name = DW_TAG_pointer_type Tag = 41, Count = 3382, Ops = 6764, Name = DW_TAG_file_type Tag = 22, Count = 158479, Ops = 633916, Name = DW_TA...

In r219010, I merged integer and string fields into a single header field. By reducing the number of metadata operands used in debug info, this saved 2.2GB on an `llvm-lto` bootstrap. I've done some profiling of DW_TAGs to see what parts of PR17891 and PR17892 to tackle next, and I've concluded that they will be insufficient. Instead, I'd like to implement a more aggressive plan,