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From: "pilarlatiesa at gmail dot com" <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: Tue, 08 Nov 2022 12:59:26 +0000 [thread overview] Message-ID: <bug-107569-4-WaHgF2sNp5@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-107569-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107569 Pilar Latiesa <pilarlatiesa at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |pilarlatiesa at gmail dot com --- Comment #1 from Pilar Latiesa <pilarlatiesa at gmail dot com> --- I also noted that the following testcase: #include <cmath> struct TVec { double x, y; }; double dot(TVec const &u, TVec const &v) { return u.x * v.x + u.y * v.y; } double mag(TVec const &u) { if (!(dot(u, u) >= 0.0)) __builtin_unreachable(); return std::sqrt(dot(u, u)); } results in: (with -O3 -march=skylake --param=vrp1-mode=vrp) mag(TVec const&): vmovsd xmm1, QWORD PTR [rdi+8] vmovsd xmm0, QWORD PTR [rdi] vmulsd xmm1, xmm1, xmm1 vfmadd132sd xmm0, xmm1, xmm0 vsqrtsd xmm0, xmm0, xmm0 ret (with -O3 -march=skylake --param=vrp1-mode=ranger) mag(TVec const&): vmovsd xmm1, QWORD PTR [rdi+8] vmovsd xmm0, QWORD PTR [rdi] vmulsd xmm1, xmm1, xmm1 vfmadd132sd xmm0, xmm1, xmm0 vxorpd xmm1, xmm1, xmm1 vucomisd xmm1, xmm0 ja .L11 vsqrtsd xmm0, xmm0, xmm0 ret .L11: jmp sqrt
next prev parent reply other threads:[~2022-11-08 12:59 UTC|newest] Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-11-08 12:09 [Bug tree-optimization/107569] New: " jakub at gcc dot gnu.org 2022-11-08 12:09 ` [Bug tree-optimization/107569] " jakub at gcc dot gnu.org 2022-11-08 12:59 ` pilarlatiesa at gmail dot com [this message] 2022-11-08 13:30 ` rguenth at gcc dot gnu.org 2022-11-08 13:34 ` jakub at gcc dot gnu.org 2022-11-08 14:46 ` amacleod at redhat dot com 2022-11-08 14:53 ` jakub at gcc dot gnu.org 2022-11-08 15:14 ` amacleod at redhat dot com 2022-11-08 15:34 ` jakub at gcc dot gnu.org 2022-11-08 15:53 ` amacleod at redhat dot com 2022-11-08 15:55 ` jakub at gcc dot gnu.org 2022-11-08 16:00 ` jakub at gcc dot gnu.org 2022-11-08 17:25 ` jakub at gcc dot gnu.org 2022-11-09 14:20 ` aldyh at gcc dot gnu.org 2022-11-09 14:27 ` aldyh at gcc dot gnu.org 2022-11-09 14:30 ` aldyh at gcc dot gnu.org 2022-11-09 15:01 ` pilarlatiesa at gmail dot com 2022-11-09 15:10 ` jakub at gcc dot gnu.org 2022-11-09 15:38 ` jakub at gcc dot gnu.org 2022-11-09 17:21 ` cvs-commit at gcc dot gnu.org 2022-11-09 18:21 ` jakub at gcc dot gnu.org 2022-11-10 9:32 ` aldyh at gcc dot gnu.org 2022-11-10 9:36 ` jakub at gcc dot gnu.org 2022-11-10 10:22 ` jakub at gcc dot gnu.org 2022-11-10 10:29 ` jakub at gcc dot gnu.org 2022-11-10 10:40 ` jakub at gcc dot gnu.org 2022-11-10 11:34 ` aldyh at gcc dot gnu.org 2022-11-10 11:34 ` aldyh at gcc dot gnu.org 2022-11-10 12:22 ` jakub at gcc dot gnu.org 2022-11-10 12:47 ` aldyh at gcc dot gnu.org 2022-11-10 12:54 ` jakub at gcc dot gnu.org 2022-11-10 13:19 ` aldyh at gcc dot gnu.org 2022-11-10 13:35 ` aldyh at gcc dot gnu.org 2022-11-10 16:12 ` jakub at gcc dot gnu.org 2022-11-10 17:50 ` aldyh at gcc dot gnu.org 2022-11-10 19:14 ` aldyh at gcc dot gnu.org 2022-11-10 19:29 ` jakub at gcc dot gnu.org 2022-11-11 7:15 ` aldyh at gcc dot gnu.org 2022-11-12 8:42 ` cvs-commit at gcc dot gnu.org 2022-11-12 8:42 ` cvs-commit at gcc dot gnu.org 2022-11-12 8:43 ` cvs-commit at gcc dot gnu.org 2022-11-30 1:43 ` romain.geissler at amadeus dot com 2022-12-08 16:24 ` jakub at gcc dot gnu.org 2022-12-08 16:32 ` jakub at gcc dot gnu.org 2022-12-08 16:37 ` jakub at gcc dot gnu.org 2022-12-09 15:34 ` amacleod at redhat dot com 2023-02-27 10:07 ` rguenth at gcc dot gnu.org 2023-03-22 15:26 ` jakub at gcc dot gnu.org 2023-03-22 16:07 ` jakub at gcc dot gnu.org 2023-03-23 8:38 ` jakub at gcc dot gnu.org 2023-03-23 13:47 ` rguenth at gcc dot gnu.org 2023-03-23 14:30 ` jakub at gcc dot gnu.org 2023-03-23 16:22 ` cvs-commit at gcc dot gnu.org 2023-03-23 16:22 ` rguenth at gcc dot gnu.org
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