}
> …
> }
>
> I will give it a try.
>
> I can confirm that veclower leaves us with an unfolded constant CTOR.
> If you file a PR to remind me I'll fix that.
>
> The attached untested patch fixes this for the testcase.
>
> Here i
e-to-generate-VECTOR_CST-i.patch
From aac56894719b59e552b493c970946225ed8c27f6 Mon Sep 17 00:00:00 2001
From: Richard Biener
Date: Mon, 7 Jun 2021 20:08:13 +0200
Subject: [PATCH] middle-end/100951 - make sure to generate VECTOR_CST in
lowering
When vector lowering creates piecewise ops make s
When vector lowering creates piecewise ops make sure to create
VECTOR_CSTs instead of CONSTRUCTORs when possible.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
gcc/
2021-06-07 Richard Biener
PR middle-end/100951
* tree-vect-generic.c (expand_vector_piecewise):
== FIXED_CST)
> > > > {
> > > > rtx src = gen_const_vec_duplicate (mode, expand_normal
> > > > (node));
> > > > emit_move_insn (target, src);
> > > > break;
> > > >
