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From: "crazylht at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/105617] [12/13 Regression] Slp is maybe too aggressive
 in some/many cases
Date: Tue, 17 May 2022 02:47:29 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105617

--- Comment #7 from Hongtao.liu <crazylht at gmail dot com> ---
Hmm, we have specific code to add scalar->vector(vmovq) cost to vector
construct, but it seems not to work here, guess it's because &r0,and though=
t it
was load not scalar=EF=BC=9F=20

r0.1_21 1 times scalar_store costs 12 in body
r1.3_23 1 times scalar_store costs 12 in body
r2.5_25 1 times scalar_store costs 12 in body
r3.7_27 1 times scalar_store costs 12 in body
node 0x866f238 1 times vec_construct costs 4 in prologue
node 0x866f238 1 times vec_construct costs 4 in prologue
r0.1_21 2 times unaligned_store (misalign -1) costs 24 in body
/app/example.c:10:10: note: Cost model analysis for part in loop 0:
  Vector cost: 32
  Scalar cost: 48=