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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/107569] [13 Regression] Failure to optimize
 std::isfinite since r13-3596
Date: Thu, 08 Dec 2022 16:32:42 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107569

--- Comment #41 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
As for #c1, with trunk -O3 -march=3Dskylake it is:
        vmovsd  8(%rdi), %xmm1
        vmovsd  (%rdi), %xmm0
        vmulsd  %xmm1, %xmm1, %xmm1
        vfmadd132sd     %xmm0, %xmm1, %xmm0
        vsqrtsd %xmm0, %xmm0, %xmm0
which is I think what we want.=