https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101984
Bug ID: 101984
Summary: [12 Regression] gimple-ssa-warn-access memory leak
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: GC
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: dje at gcc dot gnu.org
Target Milestone: ---
As part of the warning code refactoring, alloc_max_size() was moved from
calls.c to gimple-ssa-warn-access.cc. The alloc_object_size_limit variable was
removed and the Tree generated by build_int_cst call in the function is not
managed by the GC machinery, leaking memory.
A patch was posted, but gimple-ssa-warn-access.cc is the first file with file
extension ".cc" to use the GC machinery, so the GCC Makefile machinery is not
prepared to automatically generate the GTY header. (gimple-isel.cc is listed
but does not use GTY.)
https://gcc.gnu.org/pipermail/gcc-patches/2021-August/577723.html
