wireguard-openbsd/gnu/llvm/lib/Target/PowerPC, branch jd/simplify-queueing WireGuard implementation for the OpenBSD kernel https://git.zx2c4.com/wireguard-openbsd/atom/gnu/llvm/lib/Target/PowerPC?h=jd%2Fsimplify-queueing 2020-06-04T22:33:17Z Set max atomic size for PowerPC. 2020-06-04T22:33:17Z gkoehler gkoehler@openbsd.org 2020-06-04T22:33:17Z urn:sha1:21ddc59af3b7bf4d9a666653828d7e9ee41cba12 32-bit PowerPC doesn't have instructions for lock-free atomic ops on 8-byte values, and needs libcalls like __atomic_fetch_add_8(). In code like "_Atomic long long a; a++;", clang doesn't emit a libcall. This was causing linker errors on symbols like __sync_fetch_and_add_8. Now that LLVM knows the max atomic size, its AtomicExpandPass changes these 8-byte ops into libcalls. ok mortimer@ Switch Powerpc64 Big Endian to ELFv2 on OpenBSD, as least for now. 2020-05-30T19:27:11Z drahn drahn@openbsd.org 2020-05-30T19:27:11Z urn:sha1:98c52506dedbd7b4b3f76d15c419a7ea974c7fb5 This should simplify bringup and make it easier to support Big Endian and Little Endian with the same code. May be reconsidered if it causes too many problems with Ports. ok kettenis@ Fix "small pic" secure plt support. 2020-04-04T09:54:04Z kettenis kettenis@openbsd.org 2020-04-04T09:54:04Z urn:sha1:3159fc8f233e5ccb749cd05b58cf5b93b8f45263 ok mortimer@ Import LLVM 8.0.1 release including clang, lld and lldb. 2019-09-01T16:27:59Z patrick patrick@openbsd.org 2019-09-01T16:27:59Z urn:sha1:b19884b112052f3bf5ff9551374fbd840e2339f2 Merge LLVM 8.0.0 release. 2019-06-23T22:05:08Z patrick patrick@openbsd.org 2019-06-23T22:05:08Z urn:sha1:f27a781c9811da94fe68b2cf34237c2a61b48c96 Prepared with help from jsg@ and mortimer@ Tested on amd64 by bcallah@, krw@, naddy@ Tested on arm64 by patrick@ Tested on macppc by kettenis@ Tested on octeon by visa@ Tested on sparc64 by claudio@ Import LLVM 8.0.0 release including clang, lld and lldb. 2019-06-23T21:36:31Z patrick patrick@openbsd.org 2019-06-23T21:36:31Z urn:sha1:23f101f37937a1bd4a29726cab2f76e0fb038b35 When generating code for OpenBSD/powerpc, avoid unaligned floating-point 2019-02-18T19:42:23Z kettenis kettenis@openbsd.org 2019-02-18T19:42:23Z urn:sha1:82bbcfe67c2becd0a089347666d2effb60208ad4 load and store instructions. The vast majority of PowerPC CPUs that OpenBSD runs on don't implement those and will generate an alignment exceptions. While we do emulate lfd and stfd (to work around GCC bugs), we don't emulate lfs and stfs. It is way more efficient to have the compiler generate code that only uses aligned load and store instructions. Based on a diff from Georg Koehler. ok patrick@, visa@ Tedu files that got removed in LLVM 7.0.1. 2019-01-27T17:11:29Z patrick patrick@openbsd.org 2019-01-27T17:11:29Z urn:sha1:9f520fd6abbfde117cf551fb4eacdd2687a606a9 Import LLVM 7.0.1 release including clang, lld and lldb. 2019-01-27T16:42:12Z patrick patrick@openbsd.org 2019-01-27T16:42:12Z urn:sha1:b773203fb58f3ef282fb69c832d8710cab5bc82d Tedu files that got removed in LLVM 6.0.0. 2018-04-06T15:04:10Z patrick patrick@openbsd.org 2018-04-06T15:04:10Z urn:sha1:4cabce93708ac7b290eacd7f90928878c4df8681