wireguard-openbsd/gnu/llvm/lib/Target/PowerPC/PPCISelLowering.cpp, branch jd/queueboosts WireGuard implementation for the OpenBSD kernel https://git.zx2c4.com/wireguard-openbsd/atom/gnu/llvm/lib/Target/PowerPC/PPCISelLowering.cpp?h=jd%2Fqueueboosts 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@ 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@ 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@ 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 Import LLVM 6.0.1 release including clang, lld and lldb. 2018-04-06T14:26:03Z patrick patrick@openbsd.org 2018-04-06T14:26:03Z urn:sha1:bdabc2f19ffb9e20600dad6e8a300842a7bda50e "where is the kaboom?" deraadt@ Import LLVM 5.0.0 release including clang, lld and lldb. 2017-10-04T20:27:34Z patrick patrick@openbsd.org 2017-10-04T20:27:34Z urn:sha1:31eb748944903b7f4f38afda9851951ca9dfc1ae Import LLVM 4.0.0 rc1 including clang and lld to help the current 2017-01-24T08:32:59Z patrick patrick@openbsd.org 2017-01-24T08:32:59Z urn:sha1:53d771aafdbe5b919f264f53cba3788e2c4cffd2 development effort on OpenBSD/arm64. Import LLVM 3.9.1 including clang and lld. 2017-01-14T19:55:43Z patrick patrick@openbsd.org 2017-01-14T19:55:43Z urn:sha1:bd3306aecb3a15e8967143b8cdbbccf2b1b19b74 Use the space freed up by sparc and zaurus to import LLVM. 2016-09-03T22:46:54Z pascal pascal@openbsd.org 2016-09-03T22:46:54Z urn:sha1:b5500b9ca0102f1ccaf32f0e77e96d0739aded9b ok hackroom@