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Merge branch 'main' into users/ylzsx/r-tls-noie

Merge branch 'users/chapuni/mcdc/nest/nest-base' into users/chapuni/mcdc/nest/trunk

Merge branch 'users/chapuni/mcdc/nest/bitmapaddr' into users/chapuni/mcdc/nest/nest-base

Conflicts:
        clang/test/CoverageMapping/mcdc-single-cond.cpp

Merge branch 'users/chapuni/mcdc/nest/tests' into users/chapuni/mcdc/nest/bitmapaddr

Merge branch 'users/chapuni/mcdc/nest/tests' into users/chapuni/mcdc/nest/mcdcstate

Merge branch 'users/chapuni/mcdc/nest/tests' into users/chapuni/mcdc/nest/lnot

Merge branch 'users/chapuni/mcdc/nest/tests' into users/chapuni/mcdc/nest/expect

Merge branch 'main' into users/chapuni/mcdc/nest/tests

run 'git merge main'

fix order

Created using spr 1.3.4

[𝘀𝗽𝗿] changes introduced through rebase

Created using spr 1.3.4

[skip ci]

Rebase

Created using spr 1.3.5

rebase

Created using spr 1.3.4

refactor

Created using spr 1.3.4

Address @DavidSpickett's comment

Created using spr 1.3.5-bogner

Merge branch 'main' of https://github.com/llvm/llvm-project into cbuffer-codegen5

Rebase, address comments, remove some extra graph-related code

Created using spr 1.3.5

rebase

Created using spr 1.3.4

Merge branch 'main' into obj2yaml/root-constants

apply review suggestions

Created using spr 1.3.6-beta.1

[Flang][NFC] Move runtime library files to flang-rt (#110298)

Mostly mechanical changes in preparation of extracting the Flang-RT
"subproject" in #110217. This PR intends to only move pre-existing files
to the new folder structure, with no behavioral change. Common files
(headers, testing, cmake) shared by Flang-RT and Flang remain in
`flang/`.

Some cosmetic changes and files paths were necessary:
* Relative paths to the new path for the source files and
`add_subdirectory`.
 * Add the new location's include directory to `include_directories`
* The unittest/Evaluate directory has unitests for flang-rt and Flang. A
new `CMakeLists.txt` was introduced for the flang-rt tests.
 * Change the `#include` paths relative to the include directive
 * clang-format on the `#include` directives
* Since the paths are part if the copyright header and include guards, a
script was used to canonicalize those
* `test/Runtime` and runtime tests in `test/Driver` are moved, but the
lit.cfg.py mechanism to execute the will only be added in #110217.

[Flang][NFC] Move runtime library files to flang-rt

Merge commit 'e2d1e2183a9615c669392eefcfe632cc0b59a649' into users/meinersbur/irbuilder-extract

Move files to FortranRuntime

[Flang] LLVM_ENABLE_RUNTIMES=FortranRuntime

Extract Flang's runtime library to use the LLVM_ENABLE_RUNTIME
mechanism.

Revert "[Flang] [FlangRT] Introduce FlangRT project as solution to Flang's runtime LLVM integration"

This reverts commit 6403287eff71a3d6f6c862346d6ed3f0f000eb70.

This is failing on all but 1 of Linaro's flang builders.
CMake Error at /home/tcwg-buildbot/worker/clang-aarch64-full-2stage/llvm/flang-rt/unittests/CMakeLists.txt:37 (message):
  Target llvm_gtest not found.

[Flang] [FlangRT] Introduce FlangRT project as solution to Flang's runtime LLVM integration

See discourse thread https://discourse.llvm.org/t/rfc-support-cmake-option-to-control-link-type-built-for-flang-runtime-libraries/71602/18 for full details.

Flang-rt is the new library target for the flang runtime libraries. It builds the Flang-rt library (which contains the sources of FortranRuntime and FortranDecimal) and the Fortran_main library. See documentation in this patch for detailed description (flang-rt/docs/GettingStarted.md).

This patch aims to:
- integrate Flang's runtime into existing llvm infrasturcture so that Flang's runtime can be built similarly to other runtimes via the runtimes target or via the llvm target as an enabled runtime
- decouple the FortranDecimal library sources that were used by both compiler and runtime so that different build configurations can be applied for compiler vs runtime
- add support for running flang-rt testsuites, which were created by migrating relevant tests from `flang/test` and `flang/unittest` to `flang-rt/test` and `flang-rt/unittest`, using a new `check-flang-rt` target.
- provide documentation on how to build and use the new FlangRT runtime

Reviewed By: DanielCChen

Differential Revision: https://reviews.llvm.org/D154869

[Flang] Add -fconvert option to swap endianness for unformatted files.

To accomplish this, this patch creates an optional list of environment
variable default values to be set by the runtime to allow directly using
the existing runtime implementation of FORT_CONVERT for I/O conversions.

Merge branch 'main' into irbuilder-extract-refactor

[flang] Rename the runtime routine that reports a fatal user error

As per Steve Scalpone's suggestion, I've renamed the runtime routine to
better evoke its purpose.

I implemented a routine called "Crash" and added a test.

Differential Revision: https://reviews.llvm.org/D118703