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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug tdep/32152] [gdb/tdep, riscv64] FAIL:
 gdb.cp/non-trivial-retval.exp: finish from f1
Date: Sun, 08 Sep 2024 11:02:19 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D32152

--- Comment #2 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Andreas Schwab from comment #1)
> I don't understand why the values are returned through memory, they are a=
ll
> word-sized aggregates.

Here (
https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-cc.a=
doc
) I found:
...
Aggregates larger than 2=C3=97XLEN bits are passed by reference and are rep=
laced in
the argument list with the address, as are C++ aggregates with nontrivial c=
opy
constructors, destructors, or vtables.
...

So, I think it's the case of "C++ aggregates with nontrivial copy construct=
ors,
destructors, or vtables".

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