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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/107131] [11/12/13 Regression] wrong code with -Os
 -fno-ipa-vrp -fno-tree-bit-ccp
Date: Thu, 06 Oct 2022 07:12:47 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107131

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[11/12 Regression] wrong    |[11/12/13 Regression] wrong
                   |code with -Os -fno-ipa-vrp  |code with -Os -fno-ipa-vrp
                   |-fno-tree-bit-ccp           |-fno-tree-bit-ccp
   Target Milestone|---                         |11.4

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note __builtin_shufflevector might just be the point we were able to produce
the
input GIMPLE required to trigger the previously latent issue.

The difference between -O (working) and -Os (failing) starts at RTL expansi=
on
only.=