Merge llvm-project main llvmorg-18-init-16864-g3b3ee1f53424

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-18-init-16864-g3b3ee1f53424.

Merge llvm-project main llvmorg-18-init-16864-g3b3ee1f53424

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-18-init-16864-g3b3ee1f53424.

PR: 276104
MFC after: 1 month

(cherry picked from commit 297eecfb02bb25902531dbb5c3b9a88caf8adf29)

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Merge llvm-project main llvmorg-18-init-16595-g7c00a5be5cde

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-18-init-16595-g7c00a5be5cde.

Merge llvm-project main llvmorg-18-init-16595-g7c00a5be5cde

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-18-init-16595-g7c00a5be5cde.

PR: 276104
MFC after: 1 month

(cherry picked from commit 1db9f3b21e39176dd5b67cf8ac378633b172463e)

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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.

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

(cherry picked from commit cb14a3fe5122c879eae1fb480ed7ce82a699ddb6)

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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.

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

(cherry picked from commit 5f757f3ff9144b609b3c433dfd370cc6bdc191ad)

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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 af

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

(cherry picked from commit 4542f901cb0c5dd66ab5b541f2fbc659fd46f893)

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Merge llvm-project release/17.x llvmorg-17.0.0-rc4-10-g0176e8729ea4

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-17.0.0-rc4-10-g0176e8729ea4.

PR: 27375

Merge llvm-project release/17.x llvmorg-17.0.0-rc4-10-g0176e8729ea4

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-17.0.0-rc4-10-g0176e8729ea4.

PR: 273753
MFC after: 1 month

(cherry picked from commit 8a4dda33d67586ca2624f2a38417baa03a533a7f)

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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, t

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

(cherry picked from commit 06c3fb2749bda94cb5201f81ffdb8fa6c3161b2e)

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Merge commit f75939599 from llvm git (by Erich Keane):

Reland r374450 with Richard Smith's comments and test fixed.

The behavior from the original patch has changed, since we're no
longer all

Merge commit f75939599 from llvm git (by Erich Keane):

Reland r374450 with Richard Smith's comments and test fixed.

The behavior from the original patch has changed, since we're no
longer allowing LLVM to just ignore the alignment. Instead, we're
just assuming the maximum possible alignment.

Differential Revision: https://reviews.llvm.org/D68824

llvm-svn: 374562

This fixes 'Assertion failed: (Alignment != 0 && "Invalid Alignment"),
function CreateAlignmentAssumption', when building recent versions of
v8, which invoke __builtin_assume_aligned() with its alignment argument
set to 4GiB or more.

Clang will now report a warning, and show the maximum possible alignment
instead, e.g.:

huge-align.cpp:1:27: warning: requested alignment must be 536870912 bytes or smaller; maximum alignment assumed [-Wbuiltin-assume-aligned-alignment]
void *f(void *g) { return __builtin_assume_aligned(g, 4294967296); }
^ ~~~~~~~~~~

Upstream PR: https://bugs.llvm.org/show_bug.cgi?id=43839
Reported by: cem
MFC after: 3 days

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Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo". That i

Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo". That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.

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