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* [Bug target/63525] unnecessary reloads generated in loop
[not found] <bug-63525-4@http.gcc.gnu.org/bugzilla/>
@ 2021-07-26 22:27 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; only message in thread
From: pinskia at gcc dot gnu.org @ 2021-07-26 22:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63525
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |7.0
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This was fixed on the gimple level in GCC 7+.
That is :
_mm_store_pd(tmp, v);
x = tmp[0];
y = tmp[1];
Produces now:
_7 = BIT_FIELD_REF <v_19, 64, 0>;
x = _7;
_11 = BIT_FIELD_REF <v_19, 64, 64>;
y = _11;
Where it would be this before:
MEM[(__m128d * {ref-all})&tmp] = v_21;
_10 = tmp[0];
x = _10;
_12 = tmp[1];
y = _12;
This was implemented by r7-987.
So closing as fixed.
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2021-07-26 22:27 ` [Bug target/63525] unnecessary reloads generated in loop pinskia at gcc dot gnu.org
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