https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96937
--- Comment #5 from Simon Marchi <simon.marchi at polymtl dot ca> ---
(In reply to Richard Biener from comment #3)
> Hmm, can you point out the issue in the reduced testcase? I can't see it.
> The only cloning done I see is partial inlining so does
> -fno-partial-inlining fix the issue for you?
Doh, I indeed uploaded the wrong thing. My creduce test was trying to
reproduce the "wrong parameter order" problem, which I later found was probably
not considered a bug, instead of the "duplicate parameter problem". I re-ran
it with the right test, I attached the result.
The relevant portion of the DWARF is:
0x000003bb: DW_TAG_subprogram
DW_AT_abstract_origin (0x00000383 "do_examine")
DW_AT_low_pc (0x0000000000000000)
DW_AT_high_pc (0x0000000000000039)
DW_AT_frame_base (DW_OP_call_frame_cfa)
DW_AT_GNU_all_call_sites (true)
DW_AT_sibling (0x00000464)
0x000003d6: DW_TAG_variable
DW_AT_abstract_origin (0x000003a4 "ai")
0x000003db: DW_TAG_variable
DW_AT_abstract_origin (0x000003af "aq")
DW_AT_location (DW_OP_fbreg -17)
0x000003e3: DW_TAG_formal_parameter
DW_AT_abstract_origin (0x0000039f)
DW_AT_location (<decoding error> 9f 03 00 00 9f)
0x000003ef: DW_TAG_formal_parameter
DW_AT_abstract_origin (0x0000039a)
DW_AT_location (<decoding error> 9a 03 00 00 9f)
0x000003fb: DW_TAG_formal_parameter
DW_AT_abstract_origin (0x00000390 "y")
0x00000400: DW_TAG_formal_parameter
DW_AT_abstract_origin (0x00000390 "y")
The last two DW_TAG_formal_parameter refer to the same parameter.
