Merge clang 7.0.1 and several follow-up changes

2019-02-16T15:43:49Z

MFC r341825: Upgrade our copies of clang, llvm, lld, lldb, compiler-rt and libc++ to the upstream release_70 branch r348686 (effectively, 7.0.1 rc3). The release will follow very soon, but no more functional changes are expected. Release notes for llvm, clang and lld 7.0.0 are available here: PR: 230240, 230355 Relnotes: yes MFC r342123: Update clang, llvm, lld, lldb, compiler-rt and libc++ version number to 7.0.1 release r349250. There were no functional changes since the 7.0.1 rc3 import. PR: 230240, 230355 Relnotes: yes r343429 | emaste | 2019-01-25 15:46:13 +0100 (Fri, 25 Jan 2019) | 16 lines clang: default to DWARF 4 as of FreeBSD 13 FreeBSD previously defaulted to DWARF 2 because several tools (gdb, ctfconvert, etc.) did not support later versions. These have either been fixed or are deprecated. Note that gdb 6 still exists but has been moved out of $PATH into /usr/libexec and is intended only for use by crashinfo(8). The kernel build sets the DWARF version explicitly via -gdwarf2, so this should have no effect there. PR: 234887 [exp-run] Reviewed by: markj Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D17930 MFC r343916: Pull in r352607 from upstream llvm trunk (by Craig Topper): [X86] Add FPSW as a Def on some FP instructions that were missing it. Pull in r353141 from upstream llvm trunk (by Craig Topper): [X86] Connect the default fpsr and dirflag clobbers in inline assembly to the registers we have defined for them. Summary: We don't currently map these constraints to physical register numbers so they don't make it to the MachineIR representation of inline assembly. This could have problems for proper dependency tracking in the machine schedulers though I don't have a test case that shows that. Reviewers: rnk Reviewed By: rnk Subscribers: eraman, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D57641 Pull in r353489 from upstream llvm trunk (by Craig Topper): [X86] Add FPCW as a register and start using it as an implicit use on floating point instructions. Summary: FPCW contains the rounding mode control which we manipulate to implement fp to integer conversion by changing the roudning mode, storing the value to the stack, and then changing the rounding mode back. Because we didn't model FPCW and its dependency chain, other instructions could be scheduled into the middle of the sequence. This patch introduces the register and adds it as an implciit def of FLDCW and implicit use of the FP binary arithmetic instructions and store instructions. There are more instructions that need to be updated, but this is a good start. I believe this fixes at least the reduced test case from PR40529. Reviewers: RKSimon, spatel, rnk, efriedma, andrew.w.kaylor Subscribers: dim, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D57735 These should fix a problem in clang 7.0 where it would sometimes emit long double floating point instructions in a slightly wrong order, leading to failures in our libm tests. In particular, the cbrt_test test case 'cbrtl_powl' and the trig_test test case 'reduction'. Also bump __FreeBSD_cc_version, to be able to detect this in our test suite. Reported by: lwhsu PR: 234040 Upstream PR: https://bugs.llvm.org/show_bug.cgi?id=40206 MFC r344056: Pull in r339734 from upstream llvm trunk (by Eli Friedman): [ARM] Make PerformSHLSimplify add nodes to the DAG worklist correctly. Intentionally excluding nodes from the DAGCombine worklist is likely to lead to weird optimizations and infinite loops, so it's generally a bad idea. To avoid the infinite loops, fix DAGCombine to use the isDesirableToCommuteWithShift target hook before performing the transforms in question, and implement the target hook in the ARM backend disable the transforms in question. Fixes https://bugs.llvm.org/show_bug.cgi?id=38530 . (I don't have a reduced testcase for that bug. But we should have sufficient test coverage for PerformSHLSimplify given that we're not playing weird tricks with the worklist. I can try to bugpoint it if necessary, though.) Differential Revision: https://reviews.llvm.org/D50667 This should fix a possible hang when compiling sys/dev/nxge/if_nxge.c (which exists now only in the stable/11 branch) for arm.

sys/modules: normalize .CURDIR-relative paths to SRCTOP

2017-03-04T10:10:17Z

This simplifies make output/logic Tested with: `cd sys/modules; make ALL_MODULES=` on amd64 MFC after: 1 month Sponsored by: Dell EMC Isilon

- Follow the lead of dcphy(4) and pnphy(4) and move the reminder of the PHY

2011-10-08T12:33:10Z

drivers that only ever attach to a particular MAC driver, i.e. inphy(4), ruephy(4) and xlphy(4), to the directory where the respective MAC driver lives and only compile it into the kernel when the latter is also there, also removing it from miibus.ko and moving it into the module of the respective MAC driver. - While at it, rename exphy.c, which comes from NetBSD where the MAC driver it corresponds to also is named ex(4) instead of xl(4) but that in FreeBSD actually identifies itself as xlphy(4), and its function names accordingly for consistency. - Additionally while at it, fix some minor style issues like whitespace in the register headers and add multi-inclusion protection to inphyreg.h.

Remove bridge(4) from the tree. if_bridge(4) is a full functional

2005-09-27T18:10:43Z

replacement and has additional features which make it superior. Discussed on: -arch Reviewed by: thompsa X-MFC-after: never (RELENG_6 as transition period)

vlan.h is obsolete, don't create it anymore.

2001-09-05T23:47:02Z

Unconditinally turn on VLAN support when building fxp as a module, since

2001-07-19T15:58:40Z

it may be plugged into a kernel that supports VLANs. If the kernel is not VLAN aware, things will still work as before. Modules don't really have option support, so this is somewhat of a hack.

Update makefile to reflect vlan support.

2001-05-13T00:04:02Z

Back out 'KMODDEPS = miibus' addition in last commit. This isn't used.

2001-03-24T22:21:59Z

Adjust the fxp module to use the correct directory path, and add a

2001-03-12T21:44:19Z

dependency on miibus.

Use a consistent style and one much closer to the rest of /usr/src

2001-01-06T14:00:42Z

src/sys/modules/fxp, branch releng/12.2