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* [Bug tree-optimization/104501] New: vector lowering for VEC_COND_EXPR does not consider smaller vectors
@ 2022-02-11 12:58 rguenth at gcc dot gnu.org
2022-02-11 18:17 ` [Bug tree-optimization/104501] " pinskia at gcc dot gnu.org
2022-02-14 7:14 ` rguenth at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-02-11 12:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104501
Bug ID: 104501
Summary: vector lowering for VEC_COND_EXPR does not consider
smaller vectors
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: rguenth at gcc dot gnu.org
Target Milestone: ---
The following C++ testcase is decomposed to scalar operations by vector
lowering when compiling with just SSE2 support. But when using a vector size
of 16 we
can produce optimized code.
typedef int vsi __attribute__((vector_size(32)));
vsi res, v1, v2, v3, v4;
void foo ()
{
res = v1 == v2 ? v3 : v4;
}
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug tree-optimization/104501] vector lowering for VEC_COND_EXPR does not consider smaller vectors
2022-02-11 12:58 [Bug tree-optimization/104501] New: vector lowering for VEC_COND_EXPR does not consider smaller vectors rguenth at gcc dot gnu.org
@ 2022-02-11 18:17 ` pinskia at gcc dot gnu.org
2022-02-14 7:14 ` rguenth at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-02-11 18:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104501
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Severity|normal |enhancement
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think this is direct dup of bug 55001.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug tree-optimization/104501] vector lowering for VEC_COND_EXPR does not consider smaller vectors
2022-02-11 12:58 [Bug tree-optimization/104501] New: vector lowering for VEC_COND_EXPR does not consider smaller vectors rguenth at gcc dot gnu.org
2022-02-11 18:17 ` [Bug tree-optimization/104501] " pinskia at gcc dot gnu.org
@ 2022-02-14 7:14 ` rguenth at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-02-14 7:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104501
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |DUPLICATE
Status|UNCONFIRMED |RESOLVED
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
yep
*** This bug has been marked as a duplicate of bug 55001 ***
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-02-14 7:14 UTC | newest]
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2022-02-11 12:58 [Bug tree-optimization/104501] New: vector lowering for VEC_COND_EXPR does not consider smaller vectors rguenth at gcc dot gnu.org
2022-02-11 18:17 ` [Bug tree-optimization/104501] " pinskia at gcc dot gnu.org
2022-02-14 7:14 ` rguenth at gcc dot gnu.org
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