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From: "rsandifo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/109632] Inefficient codegen when complex numbers are
 emulated with structs
Date: Thu, 27 Apr 2023 11:17:41 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109632

--- Comment #5 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.or=
g> ---
Created attachment 54941
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D54941&action=3Dedit
hacky proof-of-concept patch

This is a very hacky proof of concept patch.  Don't try it on
anything serious, and certainly don't try to bootstrap with it --
it'll fall over in the slightest breeze.

But it does produce:

        ldp     s3, s2, [x0]
        ldp     s0, s1, [x1]
        fadd    s1, s2, s1
        fadd    s0, s3, s0
        ret

for the original testcase.=