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From: "mathieu.malaterre at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/106187] armhf: Miscompilation at all optimization levels
Date: Tue, 05 Jul 2022 07:18:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106187

--- Comment #6 from Mathieu Malaterre <mathieu.malaterre at gmail dot com> =
---
(In reply to Andrew Pinski from comment #5)
> Does it work with -fstrict-aliasing ?

Yes with and without valgrind I can reproduce the assert.

> Does adding -fsanitize=3Daddress report anything?

When I use either `-fsanitize=3Daddress` or `-fsanitize=3Dundefined` sympto=
ms goes
away.

> Please reduce it down to which file is being miscompiled at least. You can
> compile the objects with -O2 and do a bysection of the ones needing to be
> compiled with -O0.

@jan could you suggest a way to reduce :

...
ForFloatTypes<hwy::N_EMU128::ForPartialVectors<hwy::N_EMU128::TestMulAdd> >
...

in a non-brute force approach ? Thanks *very* much.=