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From: "xry111 at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/113622] [11/12/13/14 Regression] ICE with
 vectors in named registers
Date: Mon, 29 Jan 2024 08:58:07 +0000
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X-Bugzilla-Keywords: ice-on-valid-code, testsuite-fail
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113622

--- Comment #12 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #11)
> I think it is most important we don't ICE and generate correct code.  I
> doubt this is used too much in real-world code, otherwise it would have b=
een
> reported years ago, so how efficient it will be is less important.

Hmm, but for another test case (LoongArch):

typedef double __attribute__ ((vector_size (32))) vec;
register vec a asm("f25"), b asm("f26"), c asm("f27");

void
test (void)
{
  for (int i =3D 0; i < 4; i++)
    c[i] =3D __builtin_isless (a[i], b[i]) ? 0.1 : 0.2;
}

I'll have to write a loop (because __builtin_isless does not work on vector=
s).=20
Or is there a vector built-in I'm missing?=