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From: "andysem at mail dot ru" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/96337] [10/11 Regression] GCC 10.2: twice as slow for -O2
 -march=x86-64 vs. GCC 9.3/8.4
Date: Sat, 01 Aug 2020 18:53:14 +0000
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X-Bugzilla-Keywords: missed-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96337

--- Comment #13 from andysem at mail dot ru ---
I think, this inliner change needs to be reverted. People expect -O2 to pro=
duce
decently optimized binaries, and starting with gcc 10.x it doesn't deliver.=
 -O3
traditionally enabled optimizations that may or may not improve performance
(and historically, sometimes even break code), so most projects don't use i=
t.

If there needs to be an optimization mode that prioritizes compilation speed
then let that be a separate mode, e.g. -O1.=