https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116087
Bug ID: 116087
Summary: Add optional warning for too large macro expansion
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: andi-gcc at firstfloor dot org
Target Milestone: ---
The Linux kernel hit an interesting problem where a too complicated recursive
macro expansion caused significant compile time slow downs.
https://lore.kernel.org/lkml/1877ab0f14cf4f7d9da2a53e211cf...@acums.aculab.com/T/
To catch such things easier it would be useful to have a optional warning that
warns when a macro expands to more text than a configurable size.
