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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/100799] Stackoverflow in optimized code on PPC
Date: Wed, 21 Feb 2024 07:38:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100799

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #23 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Note, given that in PR90329 a workaround has been introduced for such buggy
cases (that time to disallow functions with the DECL_HIDDEN_STRING_LENGTH
arguments from making certain tail-calls and call them normally instead), if
the PowerPC backend maintainers wanted, there could be a similar workaround=
 on
the rs6000 backend side,
in the decisions whether the callee can use the parameter save area or not
ignore counting DECL_HIDDEN_STRING_LENGTH PARM_DECLs, so if e.g. 9 arguments
are passed but one of them is DECL_HIDDEN_STRING_LENGTH, assume parameter s=
ave
area is not there.=