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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/55266] vector expansion: 24 movs for 4 adds
Date: Fri, 21 Jul 2023 12:12:11 +0000 [thread overview]
Message-ID: <bug-55266-4-A6g8QQytVs@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-55266-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55266
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
The original issue is fixed.
f:
.LFB0:
.cfi_startproc
movapd (%rdi), %xmm2
movapd 16(%rdi), %xmm1
movapd %xmm2, %xmm0
addpd %xmm2, %xmm0
addpd %xmm2, %xmm0
movaps %xmm0, (%rdi)
movapd %xmm1, %xmm0
addpd %xmm1, %xmm0
addpd %xmm1, %xmm0
movaps %xmm0, 16(%rdi)
ret
the issue in comment#4 as well I think:
_Z5dotd1Dv4_fS_:
.LFB3:
.cfi_startproc
movaps %xmm1, %xmm3
pxor %xmm2, %xmm2
movhlps %xmm0, %xmm2
cvtps2pd %xmm0, %xmm0
cvtps2pd %xmm2, %xmm1
pxor %xmm2, %xmm2
movhlps %xmm3, %xmm2
cvtps2pd %xmm3, %xmm3
cvtps2pd %xmm2, %xmm2
mulpd %xmm3, %xmm0
mulpd %xmm2, %xmm1
addpd %xmm0, %xmm1
movapd %xmm1, %xmm0
unpckhpd %xmm1, %xmm0
addpd %xmm1, %xmm0
cvtsd2ss %xmm0, %xmm0
ret
.cfi_endproc
.LFE3:
.size _Z5dotd1Dv4_fS_, .-_Z5dotd1Dv4_fS_
.p2align 4
.globl _Z5dotd2Dv4_fS_
.type _Z5dotd2Dv4_fS_, @function
_Z5dotd2Dv4_fS_:
.LFB4:
.cfi_startproc
movaps %xmm1, %xmm3
cvtps2pd %xmm0, %xmm4
pxor %xmm2, %xmm2
movhlps %xmm0, %xmm2
pxor %xmm0, %xmm0
movhlps %xmm3, %xmm0
cvtps2pd %xmm2, %xmm2
cvtps2pd %xmm1, %xmm1
cvtps2pd %xmm0, %xmm0
mulpd %xmm4, %xmm1
mulpd %xmm0, %xmm2
addpd %xmm2, %xmm1
movapd %xmm1, %xmm0
unpckhpd %xmm1, %xmm0
addpd %xmm1, %xmm0
cvtsd2ss %xmm0, %xmm0
ret
prev parent reply other threads:[~2023-07-21 12:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-10 15:10 [Bug middle-end/55266] New: vector expansion: 36 " glisse at gcc dot gnu.org
2012-11-13 10:23 ` [Bug middle-end/55266] " glisse at gcc dot gnu.org
2012-11-28 10:11 ` glisse at gcc dot gnu.org
2012-12-09 2:08 ` [Bug middle-end/55266] vector expansion: 24 " pinskia at gcc dot gnu.org
2013-03-03 11:58 ` vincenzo.innocente at cern dot ch
2023-07-21 12:12 ` rguenth at gcc dot gnu.org [this message]
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