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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/89252] Vector load/store aren't used to initialize large memory
Date: Sun, 01 Aug 2021 16:59:04 +0000 [thread overview]
Message-ID: <bug-89252-4-428fCVQ3mZ@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-89252-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89252
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Component|middle-end |target
Target| |x86_64-linux-gnu
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
On the trunk we get:
movdqa xmm0, XMMWORD PTR _ZL5array[rip]
movdqa xmm1, XMMWORD PTR _ZL5array[rip+16]
movdqa xmm2, XMMWORD PTR _ZL5array[rip+32]
movdqa xmm3, XMMWORD PTR _ZL5array[rip+48]
movdqa xmm4, XMMWORD PTR _ZL5array[rip+64]
movdqa xmm5, XMMWORD PTR _ZL5array[rip+80]
movups XMMWORD PTR [rdi], xmm0
movdqa xmm6, XMMWORD PTR _ZL5array[rip+96]
movdqa xmm7, XMMWORD PTR _ZL5array[rip+112]
movups XMMWORD PTR [rdi+16], xmm1
movups XMMWORD PTR [rdi+32], xmm2
movups XMMWORD PTR [rdi+48], xmm3
movups XMMWORD PTR [rdi+320], xmm4
movups XMMWORD PTR [rdi+336], xmm5
movups XMMWORD PTR [rdi+352], xmm6
movups XMMWORD PTR [rdi+368], xmm7
Even with -mavx which I had assumed would use the ymm registers.
next parent reply other threads:[~2021-08-01 16:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-89252-4@http.gcc.gnu.org/bugzilla/>
2021-08-01 16:59 ` pinskia at gcc dot gnu.org [this message]
2021-08-01 17:20 ` hjl.tools at gmail dot com
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