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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/110784] bpf: make use of the V4 sign-extended move instructions Date: Thu, 27 Jul 2023 22:37:45 +0000 [thread overview] Message-ID: <bug-110784-4-cimVdrjMMK@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-110784-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110784 --- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by David Faust <dfaust@gcc.gnu.org>: https://gcc.gnu.org/g:14dab1a1bcc3f0315e33d166df06520fba409c9b commit r14-2831-g14dab1a1bcc3f0315e33d166df06520fba409c9b Author: David Faust <david.faust@oracle.com> Date: Thu Jul 27 13:55:44 2023 -0700 bpf: ISA V4 sign-extending move and load insns [PR110782,PR110784] BPF ISA V4 introduces sign-extending move and load operations. This patch makes the BPF backend generate those instructions, when enabled and useful. A new option, -m[no-]smov gates generation of these instructions, and is enabled by default for -mcpu=v4 and above. Tests for the new instructions and documentation for the new options are included. PR target/110782 PR target/110784 gcc/ * config/bpf/bpf.opt (msmov): New option. * config/bpf/bpf.cc (bpf_option_override): Handle it here. * config/bpf/bpf.md (*extendsidi2): New. (extendhidi2): New. (extendqidi2): New. (extendsisi2): New. (extendhisi2): New. (extendqisi2): New. * doc/invoke.texi (Option Summary): Add -msmov eBPF option. (eBPF Options): Add -m[no-]smov. Document that -mcpu=v4 also enables -msmov. gcc/testsuite/ * gcc.target/bpf/sload-1.c: New test. * gcc.target/bpf/sload-pseudoc-1.c: New test. * gcc.target/bpf/smov-1.c: New test. * gcc.target/bpf/smov-pseudoc-1.c: New test.
next prev parent reply other threads:[~2023-07-27 22:37 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-07-23 23:47 [Bug target/110784] New: " jemarch at gcc dot gnu.org 2023-07-27 22:37 ` cvs-commit at gcc dot gnu.org [this message] 2023-08-17 17:16 ` [Bug target/110784] " jemarch at gcc dot gnu.org
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