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* [Bug target/29881] union causes inefficient code
[not found] <bug-29881-4@http.gcc.gnu.org/bugzilla/>
@ 2021-06-08 9:26 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-06-08 9:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29881
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |4.8.5
Known to work| |4.8.5
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Been fixed for a long time now. At least since GCC 4.8.5.
a$m_4 = MEM[(const union I16x8 &)p_2(D)];
_5 = VIEW_CONVERT_EXPR<__v8hi>(a$m_4);
_6 = __builtin_ia32_paddw128 (_5, _5);
_7 = VIEW_CONVERT_EXPR<__m128i>(_6);
MEM[(union I16x8 *)p_2(D)] = _7;
Either it was when SRA was improved or MEM_REF was added but it has been fixed
for over 8 years now.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug target/29881] union causes inefficient code
2006-11-17 22:43 [Bug rtl-optimization/29881] New: inefficient/incorrect xmm registers usage spd at poczta dot fm
@ 2007-11-03 17:57 ` pinskia at gcc dot gnu dot org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-11-03 17:57 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from pinskia at gcc dot gnu dot org 2007-11-03 17:57 -------
This is a target issue for not using the SSE register when doing copies:
;; a = *p
Is expanded as sequences of load/stores.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|middle-end |target
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29881
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <bug-29881-4@http.gcc.gnu.org/bugzilla/>
2021-06-08 9:26 ` [Bug target/29881] union causes inefficient code pinskia at gcc dot gnu.org
2006-11-17 22:43 [Bug rtl-optimization/29881] New: inefficient/incorrect xmm registers usage spd at poczta dot fm
2007-11-03 17:57 ` [Bug target/29881] union causes inefficient code pinskia at gcc dot gnu dot org
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