Merge llvm-project main llvmorg-18-init-15692-g007ed0dccd6a

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-18-init-15692-g007ed0dccd6a.

PR: 276104
MFC after: 1 month

Merge llvm-project main llvmorg-18-init-15088-gd14ee76181fb

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-18-init-15088-gd14ee76181fb.

PR: 276104
MFC after: 1 month

Optionally create full debuginfo for llvm-related executables

Commit de6feefdb7cfd limited the amount of debuginfo generated for clang
and other llvm-related executables. This was done to save disk space and
memory during building, but it makes debugging any of these executables
much harder.

Add a new src.conf(5) setting, WITH_LLVM_FULL_DEBUGINFO, to generate
full debuginfo instead. This is off by default, but could for example be
enabled for release builds or snapshots, so llvm executables are easier
to debug.

Reviewed by: emaste
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D43839

Merge llvm-project release/17.x llvmorg-17.0.1-25-g098e653a5bed

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-17.0.1-25-g098e653a5bed.

PR: 273753
MFC after: 1 month

Merge llvm-project main llvmorg-17-init-19304-gd0b54bb50e51

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-17-init-19304-gd0b54bb50e51, the
last commit before the upstream release/17.x branch was created.

PR: 273753
MFC after: 1 month

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Merge llvm-project main llvmorg-16-init-18548-gb0daacf58f41

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-16-init-18548-gb0daacf58f41.

PR: 271047
MFC after: 1 month

Revert "Ensure .inc files are regenerated when llvm/clang tblgen binaries change"

This reverts commit ab80f0b21fbb9c44d40e6f7a99090188f4ed2f71. The intent
of this change was to avoid possible compilation errors when certain
.inc files were not regenerated, but the method turns out to cause way
more rebuilds than anticipated. Another method will have to be found,
and in the mean time, WITH_CLEAN is the solution that always works.

Fixes: ab80f0b21fbb

Revert "Rework {clang,lldb,llvm}-tblgen invocations to add --write-if-changed"

This reverts commit 8f391d9098083044793ff036dff8c96930fb1553. There are
still a bunch of problems, and apparently ${.ALLSRC} does not work as I
expected.

Fixes: 8f391d909808

Rework {clang,lldb,llvm}-tblgen invocations to add --write-if-changed

This flag ensures that the tblgen tools do not actually touch the
produced .inc file, if there are no changes to the contents. In turn,
this may prevent a number of rebuilds of files that include such .inc
files, saving build time.

While here, ensure that the shell invocations to locate the used tblgen
binary do not show unnecessary error messages.

Reported by: des
MFC after: 1 week

Ensure .inc files are regenerated when llvm/clang tblgen binaries change

When doing a fully incremental build (with WITHOUT_CLEAN enabled), from
a commit before llvm 15 was merged (3264f6b88fce), to a commit after
that, a number of .inc files were not regenerated. This could lead to
unexpected compilation errors when these .inc files were included from
llvm-project sources, similar to:

In file included from /usr/src/contrib/llvm-project/clang/lib/CodeGen/CGBuiltin.cpp:8268:
/usr/obj/usr/src/amd64.amd64/lib/clang/libclang/clang/Basic/arm_mve_builtin_cg.inc:279:18: error: no matching constructor for initialization of 'clang::CodeGen::Address'
Address Val2 = Address(Val1, CharUnits::fromQuantity(2));
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Work around this by making the .inc files dependent on the tblgen binary
used for generating them. E.g., we can relatively safely assume that if
the binary gets updated, the .inc files must also be updated. (Although
this is not 100% optimal, the gain by complicating things even more is
probaby not worth the effort.)

MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D38770

Merge llvm-project release/15.x llvmorg-15.0.7-0-g8dfdcc7b7bf6

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.7-0-g8dfdcc7b7bf6.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/15.x llvmorg-15.0.6-0-g088f33605d8a

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.6-0-g088f33605d8a.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/15.x llvmorg-15.0.2-10-gf3c5289e7846

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.2-10-gf3c5289e7846.

PR: 265425
MFC after: 2 weeks

Merge llvm-project main llvmorg-15-init-16436-g18a6ab5b8d1f

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-16436-g18a6ab5b8d1f.

PR: 265425
MFC after: 2 weeks

Merge llvm-project main llvmorg-15-init-15358-g53dc0f10787

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-15358-g53dc0f10787.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/14.x llvmorg-14.0.5-0-gc12386ae247c

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.5-0-gc12386ae247c, aka 14.0.5 release.

PR: 261742
MFC after: 3 days

Update rest of llvm-project build glue for 14.0.4

I completely forgot about updating the generated llvm-project config
files, which also contain version numbers, etc. Sorry for the churn.

PR: 261742
Fixes: ab9d54731f43
MFC after: 3 days

Merge llvm-project release/14.x llvmorg-14.0.3-0-g1f9140064dfb

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.3-0-g1f9140064dfb.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-17616-g024a1fab5c35

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-17616-g024a1fab5c35.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-10223-g401b76fdf2b3

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-10223-g401b76fdf2b3.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-13-init-16847-g88e66fa60ae5

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-13-init-16847-g88e66fa60ae5, the last commit before
the upstream release/13.x branch was created.

PR: 258209
MFC after: 2 weeks

Merge llvm-project 12.0.1 rc2

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12.0.1-rc2-0-ge7dac564cd0e, a.k.a. 12.0.1 rc2.

PR: 255570
MFC after: 6 weeks

Merge llvm-project main llvmorg-12-init-17869-g8e464dd76bef

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12-init-17869-g8e464dd76bef, the last commit before the
upstream release/12.x branch was created.

PR: 255570
MFC after: 6 weeks

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.1-rc2-0-g43ff75f2c3f (aka 11.0.1 rc2).

MFC after: 4 weeks
X-MFC-With: r364284

Re-add generated arm_neon.h header, which was accidentally dropped while
refactoring lib/clang/headers/Makefile in r363984.

Update Makefiles under lib/clang and usr.bin/clang for 11.0.0 builds,
and also bump the version in the mtree files.

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
llvmorg-10.0.1-rc1-0-gf79cd71e145 (aka 10.0.1 rc1).

MFC after: 3 weeks

Update build glue for a minimal build of the clang executable.

* Bump version numbers to 10.0.0
* Update UPDATING
* Update (Optional)ObsoleteFiles.inc
* Update VCS(Revision|Version) files
* Update generated config headers
* Update clang internal headers Makefile

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.1 final release c1a0a213378a458fbea1a5c77b315c7dce08fd05.

Release notes for llvm, clang, lld and libc++ 9.0.1 will become
available here:

https://releases.llvm.org/9.0.1/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/clang/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/lld/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/projects/libcxx/docs/ReleaseNotes.html

PR: 240629
MFC after: 1 month

Update Makefile and mtree for clang internal headers, and update
OptionalObsoleteFiles.inc for added and removed files.

Change clang lib dir to 9.0.0.

Upgrade our copies of clang, llvm, lld, lldb, compiler-rt, libc++,
libunwind and openmp to the upstream release_80 branch r363030
(effectively, 8.0.1 rc2). The 8.0.1 release should follow this within a
week or so.

MFC after: 2 weeks

Update version numbers, and regenerate config headers for llvm, clang,
lld and lldb. Update ObsoleteFiles.inc and OptionalObsoleteFiles.inc.

Merge llvm, clang, lld, lldb, compiler-rt and libc++ release_70 branch
r346007 (effectively 7.0.1 rc2), resolve conflicts, and bump version
numbers.

PR: 230240, 230355

Update clang intrinsics headers.

Update llvm/clang version numbers in various files.

More follow-up to r335799 (llvm/clang 6.0.1 update), where I forgot to
update mtree files, ObsoleteFiles and a number of other paths. Sorry
about all the breakage.

Pointy hat to: me
MFC after: 2 weeks
X-MFC-With: r335799

Merge llvm, clang, lld, lldb, compiler-rt and libc++ trunk r321545,
update build glue and version numbers, add new intrinsics headers, and
update OptionalObsoleteFiles.inc.

Add new clang intrinsics headers, and update version number.

Upgrade our copies of clang, llvm, lldb and libc++ to r319231 from the
upstream release_50 branch. This corresponds to 5.0.1 rc2.

MFC after: 2 weeks

Merge llvm, clang, lld, lldb, compiler-rt and libc++ r304149, and update
build glue.

Add new LWP intrinsics header, and an option to install internal clang
headers which have the same name as our system headers, and might
conflict with them. (It is a work in progress to make these fully
compatible.)

Add preliminary UPDATING and ObsoleteFiles.inc entries. Also add one
new intrinsics header.

Initial update of clang/llvm build glue, for building just a minimal
clang executable.

Adjust version numbers for the clang library directory.

Initial updates to llvm/clang build glue.

Update build glue for clang 3.9.1 r288513.

Update build glue for llvm/clang 3.9.1.

Completely revamp the way llvm, clang and lldb are built.

* Bootstrap llvm-tblgen and clang-tblgen with a minimal llvm static
library, that has no other dependencies.
* Roll up all separate llvm libraries into one big static libllvm.
* Similar for all separate clang and lldb static libraries.
* For all these libraries, generate their .inc files only once.
* Link all llvm tools (including extra) against the big libllvm.
* Link clang and clang-format against the big libllvm and libclang.
* Link lldb against the big libllvm, libclang and liblldb.

N.B.: This is work in progress, some details may still be missing.

It also heavily depends on bsd.*.mk's support for SRCS and DPSRCS with
relative pathnames, which apparently does not always work as expected.
For building llvm, clang and lldb though, it seems to work just fine.

The main idea behind this restructuring is maintainability and build
peformance. The previous large number of very small libraries, each
with their own generated files and dependencies was slow to traverse
and hard to understand.

Possible future improvements:
* Only build certain targets, e.g. for most regular users having just
one target will be fine. This will shave off some build time.
* Building the big llvm, clang and lldb libraries as shared (private)
libraries.
* Adding other components from the LLVM project, such as lld.

Optionally create full debuginfo for llvm-related executables

Commit de6feefdb7cfd limited the amount of debuginfo generated for clang
and other llvm-related executables. This was done to save disk space and
memory during building, but it makes debugging any of these executables
much harder.

Add a new src.conf(5) setting, WITH_LLVM_FULL_DEBUGINFO, to generate
full debuginfo instead. This is off by default, but could for example be
enabled for release builds or snapshots, so llvm executables are easier
to debug.

Reviewed by: emaste
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D43839

Merge llvm-project release/17.x llvmorg-17.0.1-25-g098e653a5bed

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-17.0.1-25-g098e653a5bed.

PR: 273753
MFC after: 1 month

Merge llvm-project main llvmorg-17-init-19304-gd0b54bb50e51

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-17-init-19304-gd0b54bb50e51, the
last commit before the upstream release/17.x branch was created.

PR: 273753
MFC after: 1 month

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Merge llvm-project main llvmorg-16-init-18548-gb0daacf58f41

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-16-init-18548-gb0daacf58f41.

PR: 271047
MFC after: 1 month

Revert "Ensure .inc files are regenerated when llvm/clang tblgen binaries change"

This reverts commit ab80f0b21fbb9c44d40e6f7a99090188f4ed2f71. The intent
of this change was to avoid possible compilation errors when certain
.inc files were not regenerated, but the method turns out to cause way
more rebuilds than anticipated. Another method will have to be found,
and in the mean time, WITH_CLEAN is the solution that always works.

Fixes: ab80f0b21fbb

Revert "Rework {clang,lldb,llvm}-tblgen invocations to add --write-if-changed"

This reverts commit 8f391d9098083044793ff036dff8c96930fb1553. There are
still a bunch of problems, and apparently ${.ALLSRC} does not work as I
expected.

Fixes: 8f391d909808

Rework {clang,lldb,llvm}-tblgen invocations to add --write-if-changed

This flag ensures that the tblgen tools do not actually touch the
produced .inc file, if there are no changes to the contents. In turn,
this may prevent a number of rebuilds of files that include such .inc
files, saving build time.

While here, ensure that the shell invocations to locate the used tblgen
binary do not show unnecessary error messages.

Reported by: des
MFC after: 1 week

Ensure .inc files are regenerated when llvm/clang tblgen binaries change

When doing a fully incremental build (with WITHOUT_CLEAN enabled), from
a commit before llvm 15 was merged (3264f6b88fce), to a commit after
that, a number of .inc files were not regenerated. This could lead to
unexpected compilation errors when these .inc files were included from
llvm-project sources, similar to:

In file included from /usr/src/contrib/llvm-project/clang/lib/CodeGen/CGBuiltin.cpp:8268:
/usr/obj/usr/src/amd64.amd64/lib/clang/libclang/clang/Basic/arm_mve_builtin_cg.inc:279:18: error: no matching constructor for initialization of 'clang::CodeGen::Address'
Address Val2 = Address(Val1, CharUnits::fromQuantity(2));
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Work around this by making the .inc files dependent on the tblgen binary
used for generating them. E.g., we can relatively safely assume that if
the binary gets updated, the .inc files must also be updated. (Although
this is not 100% optimal, the gain by complicating things even more is
probaby not worth the effort.)

MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D38770

Merge llvm-project release/15.x llvmorg-15.0.7-0-g8dfdcc7b7bf6

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.7-0-g8dfdcc7b7bf6.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/15.x llvmorg-15.0.6-0-g088f33605d8a

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.6-0-g088f33605d8a.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/15.x llvmorg-15.0.2-10-gf3c5289e7846

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.2-10-gf3c5289e7846.

PR: 265425
MFC after: 2 weeks

Merge llvm-project main llvmorg-15-init-16436-g18a6ab5b8d1f

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-16436-g18a6ab5b8d1f.

PR: 265425
MFC after: 2 weeks

Merge llvm-project main llvmorg-15-init-15358-g53dc0f10787

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-15358-g53dc0f10787.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/14.x llvmorg-14.0.5-0-gc12386ae247c

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.5-0-gc12386ae247c, aka 14.0.5 release.

PR: 261742
MFC after: 3 days

Update rest of llvm-project build glue for 14.0.4

I completely forgot about updating the generated llvm-project config
files, which also contain version numbers, etc. Sorry for the churn.

PR: 261742
Fixes: ab9d54731f43
MFC after: 3 days

Merge llvm-project release/14.x llvmorg-14.0.3-0-g1f9140064dfb

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.3-0-g1f9140064dfb.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-17616-g024a1fab5c35

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-17616-g024a1fab5c35.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-10223-g401b76fdf2b3

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-10223-g401b76fdf2b3.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-13-init-16847-g88e66fa60ae5

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-13-init-16847-g88e66fa60ae5, the last commit before
the upstream release/13.x branch was created.

PR: 258209
MFC after: 2 weeks

Merge llvm-project 12.0.1 rc2

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12.0.1-rc2-0-ge7dac564cd0e, a.k.a. 12.0.1 rc2.

PR: 255570
MFC after: 6 weeks

Merge llvm-project main llvmorg-12-init-17869-g8e464dd76bef

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12-init-17869-g8e464dd76bef, the last commit before the
upstream release/12.x branch was created.

PR: 255570
MFC after: 6 weeks

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.1-rc2-0-g43ff75f2c3f (aka 11.0.1 rc2).

MFC after: 4 weeks
X-MFC-With: r364284

Re-add generated arm_neon.h header, which was accidentally dropped while
refactoring lib/clang/headers/Makefile in r363984.

Update Makefiles under lib/clang and usr.bin/clang for 11.0.0 builds,
and also bump the version in the mtree files.

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
llvmorg-10.0.1-rc1-0-gf79cd71e145 (aka 10.0.1 rc1).

MFC after: 3 weeks

Update build glue for a minimal build of the clang executable.

* Bump version numbers to 10.0.0
* Update UPDATING
* Update (Optional)ObsoleteFiles.inc
* Update VCS(Revision|Version) files
* Update generated config headers
* Update clang internal headers Makefile

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.1 final release c1a0a213378a458fbea1a5c77b315c7dce08fd05.

Release notes for llvm, clang, lld and libc++ 9.0.1 will become
available here:

https://releases.llvm.org/9.0.1/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/clang/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/lld/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/projects/libcxx/docs/ReleaseNotes.html

PR: 240629
MFC after: 1 month

Update Makefile and mtree for clang internal headers, and update
OptionalObsoleteFiles.inc for added and removed files.

Change clang lib dir to 9.0.0.

Upgrade our copies of clang, llvm, lld, lldb, compiler-rt, libc++,
libunwind and openmp to the upstream release_80 branch r363030
(effectively, 8.0.1 rc2). The 8.0.1 release should follow this within a
week or so.

MFC after: 2 weeks

Update version numbers, and regenerate config headers for llvm, clang,
lld and lldb. Update ObsoleteFiles.inc and OptionalObsoleteFiles.inc.

Merge llvm, clang, lld, lldb, compiler-rt and libc++ release_70 branch
r346007 (effectively 7.0.1 rc2), resolve conflicts, and bump version
numbers.

PR: 230240, 230355

Update clang intrinsics headers.

Update llvm/clang version numbers in various files.

More follow-up to r335799 (llvm/clang 6.0.1 update), where I forgot to
update mtree files, ObsoleteFiles and a number of other paths. Sorry
about all the breakage.

Pointy hat to: me
MFC after: 2 weeks
X-MFC-With: r335799

Merge llvm, clang, lld, lldb, compiler-rt and libc++ trunk r321545,
update build glue and version numbers, add new intrinsics headers, and
update OptionalObsoleteFiles.inc.

Add new clang intrinsics headers, and update version number.

Upgrade our copies of clang, llvm, lldb and libc++ to r319231 from the
upstream release_50 branch. This corresponds to 5.0.1 rc2.

MFC after: 2 weeks

Merge llvm, clang, lld, lldb, compiler-rt and libc++ r304149, and update
build glue.

Add new LWP intrinsics header, and an option to install internal clang
headers which have the same name as our system headers, and might
conflict with them. (It is a work in progress to make these fully
compatible.)

Add preliminary UPDATING and ObsoleteFiles.inc entries. Also add one
new intrinsics header.

Initial update of clang/llvm build glue, for building just a minimal
clang executable.

Adjust version numbers for the clang library directory.

Initial updates to llvm/clang build glue.

Update build glue for clang 3.9.1 r288513.

Update build glue for llvm/clang 3.9.1.

Completely revamp the way llvm, clang and lldb are built.

* Bootstrap llvm-tblgen and clang-tblgen with a minimal llvm static
library, that has no other dependencies.
* Roll up all separate llvm libraries into one big static libllvm.
* Similar for all separate clang and lldb static libraries.
* For all these libraries, generate their .inc files only once.
* Link all llvm tools (including extra) against the big libllvm.
* Link clang and clang-format against the big libllvm and libclang.
* Link lldb against the big libllvm, libclang and liblldb.

N.B.: This is work in progress, some details may still be missing.

It also heavily depends on bsd.*.mk's support for SRCS and DPSRCS with
relative pathnames, which apparently does not always work as expected.
For building llvm, clang and lldb though, it seems to work just fine.

The main idea behind this restructuring is maintainability and build
peformance. The previous large number of very small libraries, each
with their own generated files and dependencies was slow to traverse
and hard to understand.

Possible future improvements:
* Only build certain targets, e.g. for most regular users having just
one target will be fine. This will shave off some build time.
* Building the big llvm, clang and lldb libraries as shared (private)
libraries.
* Adding other components from the LLVM project, such as lld.

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Merge llvm-project main llvmorg-16-init-18548-gb0daacf58f41

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-16-init-18548-gb0daacf58f41.

PR: 271047
MFC after: 1 month

Revert "Ensure .inc files are regenerated when llvm/clang tblgen binaries change"

This reverts commit ab80f0b21fbb9c44d40e6f7a99090188f4ed2f71. The intent
of this change was to avoid possible compilation errors when certain
.inc files were not regenerated, but the method turns out to cause way
more rebuilds than anticipated. Another method will have to be found,
and in the mean time, WITH_CLEAN is the solution that always works.

Fixes: ab80f0b21fbb

Revert "Rework {clang,lldb,llvm}-tblgen invocations to add --write-if-changed"

This reverts commit 8f391d9098083044793ff036dff8c96930fb1553. There are
still a bunch of problems, and apparently ${.ALLSRC} does not work as I
expected.

Fixes: 8f391d909808

Rework {clang,lldb,llvm}-tblgen invocations to add --write-if-changed

This flag ensures that the tblgen tools do not actually touch the
produced .inc file, if there are no changes to the contents. In turn,
this may prevent a number of rebuilds of files that include such .inc
files, saving build time.

While here, ensure that the shell invocations to locate the used tblgen
binary do not show unnecessary error messages.

Reported by: des
MFC after: 1 week

Ensure .inc files are regenerated when llvm/clang tblgen binaries change

When doing a fully incremental build (with WITHOUT_CLEAN enabled), from
a commit before llvm 15 was merged (3264f6b88fce), to a commit after
that, a number of .inc files were not regenerated. This could lead to
unexpected compilation errors when these .inc files were included from
llvm-project sources, similar to:

In file included from /usr/src/contrib/llvm-project/clang/lib/CodeGen/CGBuiltin.cpp:8268:
/usr/obj/usr/src/amd64.amd64/lib/clang/libclang/clang/Basic/arm_mve_builtin_cg.inc:279:18: error: no matching constructor for initialization of 'clang::CodeGen::Address'
Address Val2 = Address(Val1, CharUnits::fromQuantity(2));
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Work around this by making the .inc files dependent on the tblgen binary
used for generating them. E.g., we can relatively safely assume that if
the binary gets updated, the .inc files must also be updated. (Although
this is not 100% optimal, the gain by complicating things even more is
probaby not worth the effort.)

MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D38770

Merge llvm-project release/15.x llvmorg-15.0.7-0-g8dfdcc7b7bf6

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.7-0-g8dfdcc7b7bf6.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/15.x llvmorg-15.0.6-0-g088f33605d8a

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.6-0-g088f33605d8a.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/15.x llvmorg-15.0.2-10-gf3c5289e7846

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.2-10-gf3c5289e7846.

PR: 265425
MFC after: 2 weeks

Merge llvm-project main llvmorg-15-init-16436-g18a6ab5b8d1f

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-16436-g18a6ab5b8d1f.

PR: 265425
MFC after: 2 weeks

Merge llvm-project main llvmorg-15-init-15358-g53dc0f10787

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-15358-g53dc0f10787.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/14.x llvmorg-14.0.5-0-gc12386ae247c

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.5-0-gc12386ae247c, aka 14.0.5 release.

PR: 261742
MFC after: 3 days

Update rest of llvm-project build glue for 14.0.4

I completely forgot about updating the generated llvm-project config
files, which also contain version numbers, etc. Sorry for the churn.

PR: 261742
Fixes: ab9d54731f43
MFC after: 3 days

Merge llvm-project release/14.x llvmorg-14.0.3-0-g1f9140064dfb

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.3-0-g1f9140064dfb.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-17616-g024a1fab5c35

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-17616-g024a1fab5c35.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-10223-g401b76fdf2b3

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-10223-g401b76fdf2b3.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-13-init-16847-g88e66fa60ae5

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-13-init-16847-g88e66fa60ae5, the last commit before
the upstream release/13.x branch was created.

PR: 258209
MFC after: 2 weeks

Merge llvm-project 12.0.1 rc2

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12.0.1-rc2-0-ge7dac564cd0e, a.k.a. 12.0.1 rc2.

PR: 255570
MFC after: 6 weeks

Merge llvm-project main llvmorg-12-init-17869-g8e464dd76bef

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12-init-17869-g8e464dd76bef, the last commit before the
upstream release/12.x branch was created.

PR: 255570
MFC after: 6 weeks

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.1-rc2-0-g43ff75f2c3f (aka 11.0.1 rc2).

MFC after: 4 weeks
X-MFC-With: r364284

Re-add generated arm_neon.h header, which was accidentally dropped while
refactoring lib/clang/headers/Makefile in r363984.

Update Makefiles under lib/clang and usr.bin/clang for 11.0.0 builds,
and also bump the version in the mtree files.

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
llvmorg-10.0.1-rc1-0-gf79cd71e145 (aka 10.0.1 rc1).

MFC after: 3 weeks

Update build glue for a minimal build of the clang executable.

* Bump version numbers to 10.0.0
* Update UPDATING
* Update (Optional)ObsoleteFiles.inc
* Update VCS(Revision|Version) files
* Update generated config headers
* Update clang internal headers Makefile

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.1 final release c1a0a213378a458fbea1a5c77b315c7dce08fd05.

Release notes for llvm, clang, lld and libc++ 9.0.1 will become
available here:

https://releases.llvm.org/9.0.1/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/clang/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/lld/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/projects/libcxx/docs/ReleaseNotes.html

PR: 240629
MFC after: 1 month

Update Makefile and mtree for clang internal headers, and update
OptionalObsoleteFiles.inc for added and removed files.

Change clang lib dir to 9.0.0.

Upgrade our copies of clang, llvm, lld, lldb, compiler-rt, libc++,
libunwind and openmp to the upstream release_80 branch r363030
(effectively, 8.0.1 rc2). The 8.0.1 release should follow this within a
week or so.

MFC after: 2 weeks

Update version numbers, and regenerate config headers for llvm, clang,
lld and lldb. Update ObsoleteFiles.inc and OptionalObsoleteFiles.inc.

Merge llvm, clang, lld, lldb, compiler-rt and libc++ release_70 branch
r346007 (effectively 7.0.1 rc2), resolve conflicts, and bump version
numbers.

PR: 230240, 230355

Update clang intrinsics headers.

Update llvm/clang version numbers in various files.

More follow-up to r335799 (llvm/clang 6.0.1 update), where I forgot to
update mtree files, ObsoleteFiles and a number of other paths. Sorry
about all the breakage.

Pointy hat to: me
MFC after: 2 weeks
X-MFC-With: r335799

Merge llvm, clang, lld, lldb, compiler-rt and libc++ trunk r321545,
update build glue and version numbers, add new intrinsics headers, and
update OptionalObsoleteFiles.inc.

Add new clang intrinsics headers, and update version number.

Upgrade our copies of clang, llvm, lldb and libc++ to r319231 from the
upstream release_50 branch. This corresponds to 5.0.1 rc2.

MFC after: 2 weeks

Merge llvm, clang, lld, lldb, compiler-rt and libc++ r304149, and update
build glue.

Add new LWP intrinsics header, and an option to install internal clang
headers which have the same name as our system headers, and might
conflict with them. (It is a work in progress to make these fully
compatible.)

Add preliminary UPDATING and ObsoleteFiles.inc entries. Also add one
new intrinsics header.

Initial update of clang/llvm build glue, for building just a minimal
clang executable.

Adjust version numbers for the clang library directory.

Initial updates to llvm/clang build glue.

Update build glue for clang 3.9.1 r288513.

Update build glue for llvm/clang 3.9.1.

Completely revamp the way llvm, clang and lldb are built.

* Bootstrap llvm-tblgen and clang-tblgen with a minimal llvm static
library, that has no other dependencies.
* Roll up all separate llvm libraries into one big static libllvm.
* Similar for all separate clang and lldb static libraries.
* For all these libraries, generate their .inc files only once.
* Link all llvm tools (including extra) against the big libllvm.
* Link clang and clang-format against the big libllvm and libclang.
* Link lldb against the big libllvm, libclang and liblldb.

N.B.: This is work in progress, some details may still be missing.

It also heavily depends on bsd.*.mk's support for SRCS and DPSRCS with
relative pathnames, which apparently does not always work as expected.
For building llvm, clang and lldb though, it seems to work just fine.

The main idea behind this restructuring is maintainability and build
peformance. The previous large number of very small libraries, each
with their own generated files and dependencies was slow to traverse
and hard to understand.

Possible future improvements:
* Only build certain targets, e.g. for most regular users having just
one target will be fine. This will shave off some build time.
* Building the big llvm, clang and lldb libraries as shared (private)
libraries.
* Adding other components from the LLVM project, such as lld.

Revert "Ensure .inc files are regenerated when llvm/clang tblgen binaries change"

This reverts commit ab80f0b21fbb9c44d40e6f7a99090188f4ed2f71. The intent
of this change was to avoid possible compilation errors when certain
.inc files were not regenerated, but the method turns out to cause way
more rebuilds than anticipated. Another method will have to be found,
and in the mean time, WITH_CLEAN is the solution that always works.

Fixes: ab80f0b21fbb

Revert "Rework {clang,lldb,llvm}-tblgen invocations to add --write-if-changed"

This reverts commit 8f391d9098083044793ff036dff8c96930fb1553. There are
still a bunch of problems, and apparently ${.ALLSRC} does not work as I
expected.

Fixes: 8f391d909808

Rework {clang,lldb,llvm}-tblgen invocations to add --write-if-changed

This flag ensures that the tblgen tools do not actually touch the
produced .inc file, if there are no changes to the contents. In turn,
this may prevent a number of rebuilds of files that include such .inc
files, saving build time.

While here, ensure that the shell invocations to locate the used tblgen
binary do not show unnecessary error messages.

Reported by: des
MFC after: 1 week

Ensure .inc files are regenerated when llvm/clang tblgen binaries change

When doing a fully incremental build (with WITHOUT_CLEAN enabled), from
a commit before llvm 15 was merged (3264f6b88fce), to a commit after
that, a number of .inc files were not regenerated. This could lead to
unexpected compilation errors when these .inc files were included from
llvm-project sources, similar to:

In file included from /usr/src/contrib/llvm-project/clang/lib/CodeGen/CGBuiltin.cpp:8268:
/usr/obj/usr/src/amd64.amd64/lib/clang/libclang/clang/Basic/arm_mve_builtin_cg.inc:279:18: error: no matching constructor for initialization of 'clang::CodeGen::Address'
Address Val2 = Address(Val1, CharUnits::fromQuantity(2));
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Work around this by making the .inc files dependent on the tblgen binary
used for generating them. E.g., we can relatively safely assume that if
the binary gets updated, the .inc files must also be updated. (Although
this is not 100% optimal, the gain by complicating things even more is
probaby not worth the effort.)

MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D38770

Merge llvm-project release/15.x llvmorg-15.0.7-0-g8dfdcc7b7bf6

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.7-0-g8dfdcc7b7bf6.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/15.x llvmorg-15.0.6-0-g088f33605d8a

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.6-0-g088f33605d8a.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/15.x llvmorg-15.0.2-10-gf3c5289e7846

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15.0.2-10-gf3c5289e7846.

PR: 265425
MFC after: 2 weeks

Merge llvm-project main llvmorg-15-init-16436-g18a6ab5b8d1f

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-16436-g18a6ab5b8d1f.

PR: 265425
MFC after: 2 weeks

Merge llvm-project main llvmorg-15-init-15358-g53dc0f10787

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-15358-g53dc0f10787.

PR: 265425
MFC after: 2 weeks

Merge llvm-project release/14.x llvmorg-14.0.5-0-gc12386ae247c

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.5-0-gc12386ae247c, aka 14.0.5 release.

PR: 261742
MFC after: 3 days

Update rest of llvm-project build glue for 14.0.4

I completely forgot about updating the generated llvm-project config
files, which also contain version numbers, etc. Sorry for the churn.

PR: 261742
Fixes: ab9d54731f43
MFC after: 3 days

Merge llvm-project release/14.x llvmorg-14.0.3-0-g1f9140064dfb

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.3-0-g1f9140064dfb.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-17616-g024a1fab5c35

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-17616-g024a1fab5c35.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-10223-g401b76fdf2b3

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-10223-g401b76fdf2b3.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-13-init-16847-g88e66fa60ae5

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-13-init-16847-g88e66fa60ae5, the last commit before
the upstream release/13.x branch was created.

PR: 258209
MFC after: 2 weeks

Merge llvm-project 12.0.1 rc2

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12.0.1-rc2-0-ge7dac564cd0e, a.k.a. 12.0.1 rc2.

PR: 255570
MFC after: 6 weeks

Merge llvm-project main llvmorg-12-init-17869-g8e464dd76bef

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12-init-17869-g8e464dd76bef, the last commit before the
upstream release/12.x branch was created.

PR: 255570
MFC after: 6 weeks

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.1-rc2-0-g43ff75f2c3f (aka 11.0.1 rc2).

MFC after: 4 weeks
X-MFC-With: r364284

Re-add generated arm_neon.h header, which was accidentally dropped while
refactoring lib/clang/headers/Makefile in r363984.

Update Makefiles under lib/clang and usr.bin/clang for 11.0.0 builds,
and also bump the version in the mtree files.

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
llvmorg-10.0.1-rc1-0-gf79cd71e145 (aka 10.0.1 rc1).

MFC after: 3 weeks

Update build glue for a minimal build of the clang executable.

* Bump version numbers to 10.0.0
* Update UPDATING
* Update (Optional)ObsoleteFiles.inc
* Update VCS(Revision|Version) files
* Update generated config headers
* Update clang internal headers Makefile

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.1 final release c1a0a213378a458fbea1a5c77b315c7dce08fd05.

Release notes for llvm, clang, lld and libc++ 9.0.1 will become
available here:

https://releases.llvm.org/9.0.1/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/clang/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/lld/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/projects/libcxx/docs/ReleaseNotes.html

PR: 240629
MFC after: 1 month

Update Makefile and mtree for clang internal headers, and update
OptionalObsoleteFiles.inc for added and removed files.

Change clang lib dir to 9.0.0.

Upgrade our copies of clang, llvm, lld, lldb, compiler-rt, libc++,
libunwind and openmp to the upstream release_80 branch r363030
(effectively, 8.0.1 rc2). The 8.0.1 release should follow this within a
week or so.

MFC after: 2 weeks

Update version numbers, and regenerate config headers for llvm, clang,
lld and lldb. Update ObsoleteFiles.inc and OptionalObsoleteFiles.inc.

Merge llvm, clang, lld, lldb, compiler-rt and libc++ release_70 branch
r346007 (effectively 7.0.1 rc2), resolve conflicts, and bump version
numbers.

PR: 230240, 230355

Update clang intrinsics headers.

Update llvm/clang version numbers in various files.

More follow-up to r335799 (llvm/clang 6.0.1 update), where I forgot to
update mtree files, ObsoleteFiles and a number of other paths. Sorry
about all the breakage.

Pointy hat to: me
MFC after: 2 weeks
X-MFC-With: r335799

Merge llvm, clang, lld, lldb, compiler-rt and libc++ trunk r321545,
update build glue and version numbers, add new intrinsics headers, and
update OptionalObsoleteFiles.inc.

Add new clang intrinsics headers, and update version number.

Upgrade our copies of clang, llvm, lldb and libc++ to r319231 from the
upstream release_50 branch. This corresponds to 5.0.1 rc2.

MFC after: 2 weeks

Merge llvm, clang, lld, lldb, compiler-rt and libc++ r304149, and update
build glue.

Add new LWP intrinsics header, and an option to install internal clang
headers which have the same name as our system headers, and might
conflict with them. (It is a work in progress to make these fully
compatible.)

Add preliminary UPDATING and ObsoleteFiles.inc entries. Also add one
new intrinsics header.

Initial update of clang/llvm build glue, for building just a minimal
clang executable.

Adjust version numbers for the clang library directory.

Initial updates to llvm/clang build glue.

Update build glue for clang 3.9.1 r288513.

Update build glue for llvm/clang 3.9.1.

Completely revamp the way llvm, clang and lldb are built.

* Bootstrap llvm-tblgen and clang-tblgen with a minimal llvm static
library, that has no other dependencies.
* Roll up all separate llvm libraries into one big static libllvm.
* Similar for all separate clang and lldb static libraries.
* For all these libraries, generate their .inc files only once.
* Link all llvm tools (including extra) against the big libllvm.
* Link clang and clang-format against the big libllvm and libclang.
* Link lldb against the big libllvm, libclang and liblldb.

N.B.: This is work in progress, some details may still be missing.

It also heavily depends on bsd.*.mk's support for SRCS and DPSRCS with
relative pathnames, which apparently does not always work as expected.
For building llvm, clang and lldb though, it seems to work just fine.

The main idea behind this restructuring is maintainability and build
peformance. The previous large number of very small libraries, each
with their own generated files and dependencies was slow to traverse
and hard to understand.

Possible future improvements:
* Only build certain targets, e.g. for most regular users having just
one target will be fine. This will shave off some build time.
* Building the big llvm, clang and lldb libraries as shared (private)
libraries.
* Adding other components from the LLVM project, such as lld.

Merge llvm-project release/14.x llvmorg-14.0.5-0-gc12386ae247c

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.5-0-gc12386ae247c, aka 14.0.5 release.

PR: 261742
MFC after: 3 days

Update rest of llvm-project build glue for 14.0.4

I completely forgot about updating the generated llvm-project config
files, which also contain version numbers, etc. Sorry for the churn.

PR: 261742
Fixes: ab9d54731f43
MFC after: 3 days

Merge llvm-project release/14.x llvmorg-14.0.3-0-g1f9140064dfb

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.3-0-g1f9140064dfb.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-17616-g024a1fab5c35

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-17616-g024a1fab5c35.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-10223-g401b76fdf2b3

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-10223-g401b76fdf2b3.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-13-init-16847-g88e66fa60ae5

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-13-init-16847-g88e66fa60ae5, the last commit before
the upstream release/13.x branch was created.

PR: 258209
MFC after: 2 weeks

Merge llvm-project 12.0.1 rc2

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12.0.1-rc2-0-ge7dac564cd0e, a.k.a. 12.0.1 rc2.

PR: 255570
MFC after: 6 weeks

Merge llvm-project main llvmorg-12-init-17869-g8e464dd76bef

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12-init-17869-g8e464dd76bef, the last commit before the
upstream release/12.x branch was created.

PR: 255570
MFC after: 6 weeks

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.1-rc2-0-g43ff75f2c3f (aka 11.0.1 rc2).

MFC after: 4 weeks
X-MFC-With: r364284

Re-add generated arm_neon.h header, which was accidentally dropped while
refactoring lib/clang/headers/Makefile in r363984.

Update Makefiles under lib/clang and usr.bin/clang for 11.0.0 builds,
and also bump the version in the mtree files.

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
llvmorg-10.0.1-rc1-0-gf79cd71e145 (aka 10.0.1 rc1).

MFC after: 3 weeks

Update build glue for a minimal build of the clang executable.

* Bump version numbers to 10.0.0
* Update UPDATING
* Update (Optional)ObsoleteFiles.inc
* Update VCS(Revision|Version) files
* Update generated config headers
* Update clang internal headers Makefile

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.1 final release c1a0a213378a458fbea1a5c77b315c7dce08fd05.

Release notes for llvm, clang, lld and libc++ 9.0.1 will become
available here:

https://releases.llvm.org/9.0.1/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/clang/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/lld/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/projects/libcxx/docs/ReleaseNotes.html

PR: 240629
MFC after: 1 month

Update Makefile and mtree for clang internal headers, and update
OptionalObsoleteFiles.inc for added and removed files.

Change clang lib dir to 9.0.0.

Upgrade our copies of clang, llvm, lld, lldb, compiler-rt, libc++,
libunwind and openmp to the upstream release_80 branch r363030
(effectively, 8.0.1 rc2). The 8.0.1 release should follow this within a
week or so.

MFC after: 2 weeks

Update version numbers, and regenerate config headers for llvm, clang,
lld and lldb. Update ObsoleteFiles.inc and OptionalObsoleteFiles.inc.

Merge llvm, clang, lld, lldb, compiler-rt and libc++ release_70 branch
r346007 (effectively 7.0.1 rc2), resolve conflicts, and bump version
numbers.

PR: 230240, 230355

Update clang intrinsics headers.

Update llvm/clang version numbers in various files.

More follow-up to r335799 (llvm/clang 6.0.1 update), where I forgot to
update mtree files, ObsoleteFiles and a number of other paths. Sorry
about all the breakage.

Pointy hat to: me
MFC after: 2 weeks
X-MFC-With: r335799

Merge llvm, clang, lld, lldb, compiler-rt and libc++ trunk r321545,
update build glue and version numbers, add new intrinsics headers, and
update OptionalObsoleteFiles.inc.

Add new clang intrinsics headers, and update version number.

Upgrade our copies of clang, llvm, lldb and libc++ to r319231 from the
upstream release_50 branch. This corresponds to 5.0.1 rc2.

MFC after: 2 weeks

Merge llvm, clang, lld, lldb, compiler-rt and libc++ r304149, and update
build glue.

Add new LWP intrinsics header, and an option to install internal clang
headers which have the same name as our system headers, and might
conflict with them. (It is a work in progress to make these fully
compatible.)

Add preliminary UPDATING and ObsoleteFiles.inc entries. Also add one
new intrinsics header.

Initial update of clang/llvm build glue, for building just a minimal
clang executable.

Adjust version numbers for the clang library directory.

Initial updates to llvm/clang build glue.

Update build glue for clang 3.9.1 r288513.

Update build glue for llvm/clang 3.9.1.

Completely revamp the way llvm, clang and lldb are built.

* Bootstrap llvm-tblgen and clang-tblgen with a minimal llvm static
library, that has no other dependencies.
* Roll up all separate llvm libraries into one big static libllvm.
* Similar for all separate clang and lldb static libraries.
* For all these libraries, generate their .inc files only once.
* Link all llvm tools (including extra) against the big libllvm.
* Link clang and clang-format against the big libllvm and libclang.
* Link lldb against the big libllvm, libclang and liblldb.

N.B.: This is work in progress, some details may still be missing.

It also heavily depends on bsd.*.mk's support for SRCS and DPSRCS with
relative pathnames, which apparently does not always work as expected.
For building llvm, clang and lldb though, it seems to work just fine.

The main idea behind this restructuring is maintainability and build
peformance. The previous large number of very small libraries, each
with their own generated files and dependencies was slow to traverse
and hard to understand.

Possible future improvements:
* Only build certain targets, e.g. for most regular users having just
one target will be fine. This will shave off some build time.
* Building the big llvm, clang and lldb libraries as shared (private)
libraries.
* Adding other components from the LLVM project, such as lld.

Update rest of llvm-project build glue for 14.0.4

I completely forgot about updating the generated llvm-project config
files, which also contain version numbers, etc. Sorry for the churn.

PR: 261742
Fixes: ab9d54731f43
MFC after: 3 days

Merge llvm-project release/14.x llvmorg-14.0.3-0-g1f9140064dfb

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14.0.3-0-g1f9140064dfb.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-17616-g024a1fab5c35

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-17616-g024a1fab5c35.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-14-init-10223-g401b76fdf2b3

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-10223-g401b76fdf2b3.

PR: 261742
MFC after: 2 weeks

Merge llvm-project main llvmorg-13-init-16847-g88e66fa60ae5

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-13-init-16847-g88e66fa60ae5, the last commit before
the upstream release/13.x branch was created.

PR: 258209
MFC after: 2 weeks

Merge llvm-project 12.0.1 rc2

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12.0.1-rc2-0-ge7dac564cd0e, a.k.a. 12.0.1 rc2.

PR: 255570
MFC after: 6 weeks

Merge llvm-project main llvmorg-12-init-17869-g8e464dd76bef

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12-init-17869-g8e464dd76bef, the last commit before the
upstream release/12.x branch was created.

PR: 255570
MFC after: 6 weeks

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.1-rc2-0-g43ff75f2c3f (aka 11.0.1 rc2).

MFC after: 4 weeks
X-MFC-With: r364284

Re-add generated arm_neon.h header, which was accidentally dropped while
refactoring lib/clang/headers/Makefile in r363984.

Update Makefiles under lib/clang and usr.bin/clang for 11.0.0 builds,
and also bump the version in the mtree files.

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
llvmorg-10.0.1-rc1-0-gf79cd71e145 (aka 10.0.1 rc1).

MFC after: 3 weeks

Update build glue for a minimal build of the clang executable.

* Bump version numbers to 10.0.0
* Update UPDATING
* Update (Optional)ObsoleteFiles.inc
* Update VCS(Revision|Version) files
* Update generated config headers
* Update clang internal headers Makefile

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.1 final release c1a0a213378a458fbea1a5c77b315c7dce08fd05.

Release notes for llvm, clang, lld and libc++ 9.0.1 will become
available here:

https://releases.llvm.org/9.0.1/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/clang/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/lld/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/projects/libcxx/docs/ReleaseNotes.html

PR: 240629
MFC after: 1 month

Update Makefile and mtree for clang internal headers, and update
OptionalObsoleteFiles.inc for added and removed files.

Change clang lib dir to 9.0.0.

Upgrade our copies of clang, llvm, lld, lldb, compiler-rt, libc++,
libunwind and openmp to the upstream release_80 branch r363030
(effectively, 8.0.1 rc2). The 8.0.1 release should follow this within a
week or so.

MFC after: 2 weeks

Update version numbers, and regenerate config headers for llvm, clang,
lld and lldb. Update ObsoleteFiles.inc and OptionalObsoleteFiles.inc.

Merge llvm, clang, lld, lldb, compiler-rt and libc++ release_70 branch
r346007 (effectively 7.0.1 rc2), resolve conflicts, and bump version
numbers.

PR: 230240, 230355

Update clang intrinsics headers.

Update llvm/clang version numbers in various files.

More follow-up to r335799 (llvm/clang 6.0.1 update), where I forgot to
update mtree files, ObsoleteFiles and a number of other paths. Sorry
about all the breakage.

Pointy hat to: me
MFC after: 2 weeks
X-MFC-With: r335799

Merge llvm, clang, lld, lldb, compiler-rt and libc++ trunk r321545,
update build glue and version numbers, add new intrinsics headers, and
update OptionalObsoleteFiles.inc.

Add new clang intrinsics headers, and update version number.

Upgrade our copies of clang, llvm, lldb and libc++ to r319231 from the
upstream release_50 branch. This corresponds to 5.0.1 rc2.

MFC after: 2 weeks

Merge llvm, clang, lld, lldb, compiler-rt and libc++ r304149, and update
build glue.

Add new LWP intrinsics header, and an option to install internal clang
headers which have the same name as our system headers, and might
conflict with them. (It is a work in progress to make these fully
compatible.)

Add preliminary UPDATING and ObsoleteFiles.inc entries. Also add one
new intrinsics header.

Initial update of clang/llvm build glue, for building just a minimal
clang executable.

Adjust version numbers for the clang library directory.

Initial updates to llvm/clang build glue.

Update build glue for clang 3.9.1 r288513.

Update build glue for llvm/clang 3.9.1.

Completely revamp the way llvm, clang and lldb are built.

* Bootstrap llvm-tblgen and clang-tblgen with a minimal llvm static
library, that has no other dependencies.
* Roll up all separate llvm libraries into one big static libllvm.
* Similar for all separate clang and lldb static libraries.
* For all these libraries, generate their .inc files only once.
* Link all llvm tools (including extra) against the big libllvm.
* Link clang and clang-format against the big libllvm and libclang.
* Link lldb against the big libllvm, libclang and liblldb.

N.B.: This is work in progress, some details may still be missing.

It also heavily depends on bsd.*.mk's support for SRCS and DPSRCS with
relative pathnames, which apparently does not always work as expected.
For building llvm, clang and lldb though, it seems to work just fine.

The main idea behind this restructuring is maintainability and build
peformance. The previous large number of very small libraries, each
with their own generated files and dependencies was slow to traverse
and hard to understand.

Possible future improvements:
* Only build certain targets, e.g. for most regular users having just
one target will be fine. This will shave off some build time.
* Building the big llvm, clang and lldb libraries as shared (private)
libraries.
* Adding other components from the LLVM project, such as lld.

Merge llvm-project main llvmorg-13-init-16847-g88e66fa60ae5

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-13-init-16847-g88e66fa60ae5, the last commit before
the upstream release/13.x branch was created.

PR: 258209
MFC after: 2 weeks

Merge llvm-project 12.0.1 rc2

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12.0.1-rc2-0-ge7dac564cd0e, a.k.a. 12.0.1 rc2.

PR: 255570
MFC after: 6 weeks

Merge llvm-project main llvmorg-12-init-17869-g8e464dd76bef

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12-init-17869-g8e464dd76bef, the last commit before the
upstream release/12.x branch was created.

PR: 255570
MFC after: 6 weeks

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
release/11.x llvmorg-11.0.1-rc2-0-g43ff75f2c3f (aka 11.0.1 rc2).

MFC after: 4 weeks
X-MFC-With: r364284

Re-add generated arm_neon.h header, which was accidentally dropped while
refactoring lib/clang/headers/Makefile in r363984.

Update Makefiles under lib/clang and usr.bin/clang for 11.0.0 builds,
and also bump the version in the mtree files.

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
llvmorg-10.0.1-rc1-0-gf79cd71e145 (aka 10.0.1 rc1).

MFC after: 3 weeks

Update build glue for a minimal build of the clang executable.

* Bump version numbers to 10.0.0
* Update UPDATING
* Update (Optional)ObsoleteFiles.inc
* Update VCS(Revision|Version) files
* Update generated config headers
* Update clang internal headers Makefile

Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
9.0.1 final release c1a0a213378a458fbea1a5c77b315c7dce08fd05.

Release notes for llvm, clang, lld and libc++ 9.0.1 will become
available here:

https://releases.llvm.org/9.0.1/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/clang/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/tools/lld/docs/ReleaseNotes.html
https://releases.llvm.org/9.0.1/projects/libcxx/docs/ReleaseNotes.html

PR: 240629
MFC after: 1 month

Update Makefile and mtree for clang internal headers, and update
OptionalObsoleteFiles.inc for added and removed files.

Change clang lib dir to 9.0.0.

Upgrade our copies of clang, llvm, lld, lldb, compiler-rt, libc++,
libunwind and openmp to the upstream release_80 branch r363030
(effectively, 8.0.1 rc2). The 8.0.1 release should follow this within a
week or so.

MFC after: 2 weeks

Update version numbers, and regenerate config headers for llvm, clang,
lld and lldb. Update ObsoleteFiles.inc and OptionalObsoleteFiles.inc.

Merge llvm, clang, lld, lldb, compiler-rt and libc++ release_70 branch
r346007 (effectively 7.0.1 rc2), resolve conflicts, and bump version
numbers.

PR: 230240, 230355

Update clang intrinsics headers.

Update llvm/clang version numbers in various files.

More follow-up to r335799 (llvm/clang 6.0.1 update), where I forgot to
update mtree files, ObsoleteFiles and a number of other paths. Sorry
about all the breakage.

Pointy hat to: me
MFC after: 2 weeks
X-MFC-With: r335799

Merge llvm, clang, lld, lldb, compiler-rt and libc++ trunk r321545,
update build glue and version numbers, add new intrinsics headers, and
update OptionalObsoleteFiles.inc.

Add new clang intrinsics headers, and update version number.

Upgrade our copies of clang, llvm, lldb and libc++ to r319231 from the
upstream release_50 branch. This corresponds to 5.0.1 rc2.

MFC after: 2 weeks

Merge llvm, clang, lld, lldb, compiler-rt and libc++ r304149, and update
build glue.

Add new LWP intrinsics header, and an option to install internal clang
headers which have the same name as our system headers, and might
conflict with them. (It is a work in progress to make these fully
compatible.)

Add preliminary UPDATING and ObsoleteFiles.inc entries. Also add one
new intrinsics header.

Initial update of clang/llvm build glue, for building just a minimal
clang executable.

Adjust version numbers for the clang library directory.

Initial updates to llvm/clang build glue.

Update build glue for clang 3.9.1 r288513.

Update build glue for llvm/clang 3.9.1.

Completely revamp the way llvm, clang and lldb are built.

* Bootstrap llvm-tblgen and clang-tblgen with a minimal llvm static
library, that has no other dependencies.
* Roll up all separate llvm libraries into one big static libllvm.
* Similar for all separate clang and lldb static libraries.
* For all these libraries, generate their .inc files only once.
* Link all llvm tools (including extra) against the big libllvm.
* Link clang and clang-format against the big libllvm and libclang.
* Link lldb against the big libllvm, libclang and liblldb.

N.B.: This is work in progress, some details may still be missing.

It also heavily depends on bsd.*.mk's support for SRCS and DPSRCS with
relative pathnames, which apparently does not always work as expected.
For building llvm, clang and lldb though, it seems to work just fine.

The main idea behind this restructuring is maintainability and build
peformance. The previous large number of very small libraries, each
with their own generated files and dependencies was slow to traverse
and hard to understand.

Possible future improvements:
* Only build certain targets, e.g. for most regular users having just
one target will be fine. This will shave off some build time.
* Building the big llvm, clang and lldb libraries as shared (private)
libraries.
* Adding other components from the LLVM project, such as lld.

Re-add generated arm_neon.h header, which was accidentally dropped while
refactoring lib/clang/headers/Makefile in r363984.

Update Makefiles under lib/clang and usr.bin/clang for 11.0.0 builds,
and also bump the version in the mtree files.

Update build glue for a minimal build of the clang executable.

* Bump version numbers to 10.0.0
* Update UPDATING
* Update (Optional)ObsoleteFiles.inc
* Update VCS(Revision|Version) files
* Update generated config headers
* Update clang internal headers Makefile

Update Makefile and mtree for clang internal headers, and update
OptionalObsoleteFiles.inc for added and removed files.

Change clang lib dir to 9.0.0.

Update version numbers, and regenerate config headers for llvm, clang,
lld and lldb. Update ObsoleteFiles.inc and OptionalObsoleteFiles.inc.

Update clang intrinsics headers.

Update llvm/clang version numbers in various files.

More follow-up to r335799 (llvm/clang 6.0.1 update), where I forgot to
update mtree files, ObsoleteFiles and a number of other paths. Sorry
about all the breakage.

Pointy hat to: me
MFC after: 2 weeks
X-MFC-With: r335799

Add new clang intrinsics headers, and update version number.

Add new LWP intrinsics header, and an option to install internal clang
headers which have the same name as our system headers, and might
conflict with them. (It is a work in progress to make these fully
compatible.)

Add preliminary UPDATING and ObsoleteFiles.inc entries. Also add one
new intrinsics header.

Initial update of clang/llvm build glue, for building just a minimal
clang executable.

Adjust version numbers for the clang library directory.

Initial updates to llvm/clang build glue.

Update build glue for clang 3.9.1 r288513.

Update build glue for llvm/clang 3.9.1.

Completely revamp the way llvm, clang and lldb are built.

* Bootstrap llvm-tblgen and clang-tblgen with a minimal llvm static
library, that has no other dependencies.
* Roll up all separate llvm libraries into one big static libllvm.
* Similar for all separate clang and lldb static libraries.
* For all these libraries, generate their .inc files only once.
* Link all llvm tools (including extra) against the big libllvm.
* Link clang and clang-format against the big libllvm and libclang.
* Link lldb against the big libllvm, libclang and liblldb.

N.B.: This is work in progress, some details may still be missing.

It also heavily depends on bsd.*.mk's support for SRCS and DPSRCS with
relative pathnames, which apparently does not always work as expected.
For building llvm, clang and lldb though, it seems to work just fine.

The main idea behind this restructuring is maintainability and build
peformance. The previous large number of very small libraries, each
with their own generated files and dependencies was slow to traverse
and hard to understand.

Possible future improvements:
* Only build certain targets, e.g. for most regular users having just
one target will be fine. This will shave off some build time.
* Building the big llvm, clang and lldb libraries as shared (private)
libraries.
* Adding other components from the LLVM project, such as lld.