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From: "gabravier at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/95845] New: Failure to optimize vector load made in separate operations to single load
Date: Tue, 23 Jun 2020 15:43:57 +0000 [thread overview]
Message-ID: <bug-95845-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95845
Bug ID: 95845
Summary: Failure to optimize vector load made in separate
operations to single load
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: gabravier at gmail dot com
Target Milestone: ---
typedef float __attribute__((vector_size(8))) v2f32;
v2f32 f(const float *ptr)
{
v2f32 r;
r[0] = ptr[0];
r[1] = ptr[1];
return r;
}
This can be optimized to `return (v2f32){ptr[0], ptr[1]};`. This transformation
is done by LLVM, but not by GCC.
next reply other threads:[~2020-06-23 15:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 15:43 gabravier at gmail dot com [this message]
2020-06-24 6:51 ` [Bug tree-optimization/95845] " rguenth at gcc dot gnu.org
2021-09-01 23:29 ` gabravier at gmail dot com
2021-09-02 7:01 ` rguenth at gcc dot gnu.org
2023-05-12 6:23 ` pinskia at gcc dot gnu.org
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