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* [Bug target/100996] New: rs6000 p10 vector add-add fusion should work with -m32 but doesn't
@ 2021-06-09 15:40 acsawdey at gcc dot gnu.org
2021-06-09 15:41 ` [Bug target/100996] " acsawdey at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: acsawdey at gcc dot gnu.org @ 2021-06-09 15:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100996
Bug ID: 100996
Summary: rs6000 p10 vector add-add fusion should work with -m32
but doesn't
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: acsawdey at gcc dot gnu.org
Target Milestone: ---
The fusion-p10-addadd.c test case does not get vector add-add fusion when
compiling with -m32:
/home/sawdey/work/gcc/trunk/build/gcc/xgcc
-B/home/sawdey/work/gcc/trunk/build/gcc/
/home/sawdey/work/gcc/trunk/gcc/gcc/testsuite/gcc.target/powerpc/fusion-p10-addadd.c
-m32 -fdiagnostics-plain-output -mcpu=power10 -O3 -dap -fno-ident -S
typedef vector long vlong;
vlong vaddadd(vlong a, vlong b, vlong c)
{
return a+b+c;
}
vaddadd:
.LFB3:
.cfi_startproc
vadduwm 2,2,3 # 8 [c=4 l=4] addv4si3
vadduwm 2,2,4 # 14 [c=4 l=4] addv4si3
blr # 24 [c=4 l=4] simple_return
.cfi_endproc
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug target/100996] rs6000 p10 vector add-add fusion should work with -m32 but doesn't
2021-06-09 15:40 [Bug target/100996] New: rs6000 p10 vector add-add fusion should work with -m32 but doesn't acsawdey at gcc dot gnu.org
@ 2021-06-09 15:41 ` acsawdey at gcc dot gnu.org
2022-07-28 8:52 ` guihaoc at gcc dot gnu.org
2022-07-28 8:53 ` guihaoc at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: acsawdey at gcc dot gnu.org @ 2021-06-09 15:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100996
acsawdey at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Target| |powerpc-*-*-*
Last reconfirmed| |2021-06-09
Assignee|unassigned at gcc dot gnu.org |acsawdey at gcc dot gnu.org
Status|UNCONFIRMED |ASSIGNED
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug target/100996] rs6000 p10 vector add-add fusion should work with -m32 but doesn't
2021-06-09 15:40 [Bug target/100996] New: rs6000 p10 vector add-add fusion should work with -m32 but doesn't acsawdey at gcc dot gnu.org
2021-06-09 15:41 ` [Bug target/100996] " acsawdey at gcc dot gnu.org
@ 2022-07-28 8:52 ` guihaoc at gcc dot gnu.org
2022-07-28 8:53 ` guihaoc at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: guihaoc at gcc dot gnu.org @ 2022-07-28 8:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100996
HaoChen Gui <guihaoc at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|ASSIGNED |RESOLVED
CC| |guihaoc at gcc dot gnu.org
--- Comment #1 from HaoChen Gui <guihaoc at gcc dot gnu.org> ---
(In reply to acsawdey from comment #0)
> The fusion-p10-addadd.c test case does not get vector add-add fusion when
> compiling with -m32:
>
> /home/sawdey/work/gcc/trunk/build/gcc/xgcc
> -B/home/sawdey/work/gcc/trunk/build/gcc/
> /home/sawdey/work/gcc/trunk/gcc/gcc/testsuite/gcc.target/powerpc/fusion-p10-
> addadd.c -m32 -fdiagnostics-plain-output -mcpu=power10 -O3 -dap
> -fno-ident -S
>
> typedef vector long vlong;
> vlong vaddadd(vlong a, vlong b, vlong c)
> {
> return a+b+c;
> }
>
> vaddadd:
> .LFB3:
> .cfi_startproc
> vadduwm 2,2,3 # 8 [c=4 l=4] addv4si3
> vadduwm 2,2,4 # 14 [c=4 l=4] addv4si3
> blr # 24 [c=4 l=4] simple_return
> .cfi_endproc
The vadduwm is not in P10 fusion sequence. Only vaddudm is in.
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug target/100996] rs6000 p10 vector add-add fusion should work with -m32 but doesn't
2021-06-09 15:40 [Bug target/100996] New: rs6000 p10 vector add-add fusion should work with -m32 but doesn't acsawdey at gcc dot gnu.org
2021-06-09 15:41 ` [Bug target/100996] " acsawdey at gcc dot gnu.org
2022-07-28 8:52 ` guihaoc at gcc dot gnu.org
@ 2022-07-28 8:53 ` guihaoc at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: guihaoc at gcc dot gnu.org @ 2022-07-28 8:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100996
--- Comment #2 from HaoChen Gui <guihaoc at gcc dot gnu.org> ---
(In reply to acsawdey from comment #0)
> The fusion-p10-addadd.c test case does not get vector add-add fusion when
> compiling with -m32:
>
> /home/sawdey/work/gcc/trunk/build/gcc/xgcc
> -B/home/sawdey/work/gcc/trunk/build/gcc/
> /home/sawdey/work/gcc/trunk/gcc/gcc/testsuite/gcc.target/powerpc/fusion-p10-
> addadd.c -m32 -fdiagnostics-plain-output -mcpu=power10 -O3 -dap
> -fno-ident -S
>
> typedef vector long vlong;
> vlong vaddadd(vlong a, vlong b, vlong c)
> {
> return a+b+c;
> }
>
> vaddadd:
> .LFB3:
> .cfi_startproc
> vadduwm 2,2,3 # 8 [c=4 l=4] addv4si3
> vadduwm 2,2,4 # 14 [c=4 l=4] addv4si3
> blr # 24 [c=4 l=4] simple_return
> .cfi_endproc
The vadduwm is not in P10 fusion sequence. Only vaddudm is in.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-07-28 8:53 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2021-06-09 15:40 [Bug target/100996] New: rs6000 p10 vector add-add fusion should work with -m32 but doesn't acsawdey at gcc dot gnu.org
2021-06-09 15:41 ` [Bug target/100996] " acsawdey at gcc dot gnu.org
2022-07-28 8:52 ` guihaoc at gcc dot gnu.org
2022-07-28 8:53 ` guihaoc at gcc dot gnu.org
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