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From: "rdapp at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/111600] [14 Regression] RISC-V bootstrap time regression
Date: Thu, 12 Oct 2023 11:50:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111600

--- Comment #23 from Robin Dapp <rdapp at gcc dot gnu.org> ---
For the lack of a better idea (and time constraints as looking for compiler
bottlenecks is slow and tedious) I went with Kito's suggestion of splitting
insn-emit.cc

This reduces this part of the compilation with eight threads to 40s (from 10
min before).  I evenly split the number of patterns into the 10 files but it
just so happens that the last file will receive all the problematical
maybe_code_for functions, so that file makes up for most of the 40s.  The r=
est
usually takes 5-20s.

Doing bootstrapping tests now, going to post an initial patch once it's
"presentable".=