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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/44563] GCC uses a lot of RAM when compiling a large numbers
 of functions
Date: Fri, 16 Feb 2024 13:52:04 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D44563

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2010-06-17 10:36:48         |2024-2-16

--- Comment #40 from Richard Biener <rguenth at gcc dot gnu.org> ---
Reconfirmed.  On for GCC 14 we use about 2GB of ram on x86_64 with -O0 and =
20s.
With -O1 that regresses to 60s and a little less peak memory.

 callgraph ipa passes               :  14.18 ( 23%)
 tree PTA                           :  16.43 ( 27%)=20

And -O2 memory usage improves further at about the same compile-time.=