Update CODEOWNERS to require branch manager approval

Added a line to require approval from branch managers for the release branch.

Author: shahmishal

.github/CODEOWNERS

@@ -1,153 +1,2 @@
-# This file lists reviewers that are auto-assigned when a pull request modifies
-# certain files or directories. If you add yourself to this file, you commit to
-# reviewing a large fraction of pull requests in the relevant area.
-#
-# The GitHub "code owners" mechanism is used exclusively to auto-assign
-# reviewers and does not carry significance beyond that. It is not necessary
-# to receive an approval from a "code owner" in particular -- any LLVM project
-# member can approve pull requests.
-#
-# This is independent of LLVM's own "maintainer" concept.
-# See https://llvm.org/docs/DeveloperPolicy.html#maintainers as well as the
-# Maintainers.* files in the the respective subproject directories.
-
-/libcxx/ @llvm/reviewers-libcxx
-/libcxxabi/ @llvm/reviewers-libcxxabi
-/libunwind/ @llvm/reviewers-libunwind
-/runtimes/ @llvm/reviewers-libcxx
-
-/llvm/lib/Analysis/BasicAliasAnalysis.cpp @nikic
-/llvm/lib/Analysis/InstructionSimplify.cpp @nikic
-/llvm/lib/Analysis/LazyValueInfo.cpp @nikic
-/llvm/lib/Analysis/ScalarEvolution.cpp @nikic
-/llvm/lib/Analysis/ValueTracking.cpp @nikic
-/llvm/lib/IR/ConstantRange.cpp @nikic
-/llvm/lib/IR/Core.cpp @nikic
-/llvm/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp @nikic
-/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp @nikic
-/llvm/lib/Transforms/InstCombine/ @nikic
-
-/clang/test/CXX/drs/ @Endilll
-/clang/www/cxx_dr_status.html @Endilll
-/clang/www/make_cxx_dr_status @Endilll
-
-/clang/include/clang/CIR @lanza @bcardosolopes
-/clang/lib/CIR @lanza @bcardosolopes
-/clang/tools/cir-* @lanza @bcardosolopes
-
-# BEGIN SWIFT
-/lldb/**/*Swift* @adrian-prantl
-# END SWIFT
-/lldb/ @JDevlieghere
-
-# MLIR Interfaces.
-/mlir/include/mlir/Interfaces/TilingInterface.* @MaheshRavishankar @nicolasvasilache
-/mlir/lib/Interfaces/TilingInterface.* @MaheshRavishankar @nicolasvasilache
-/mlir/include/mlir/Interfaces/ValueBoundsOpInterface.* @matthias-springer
-/mlir/lib/Interfaces/ValueBoundsOpInterface.* @matthias-springer
-/mlir/**/ValueBoundsOpInterfaceImpl.* @matthias-springer
-/mlir/include/mlir/Interfaces/RuntimeVerifiableOpInterface.* @matthias-springer
-/mlir/lib/Interfaces/RuntimeVerifiableOpInterface.* @matthias-springer
-/mlir/**/RuntimeVerifiableOpInterfaceImpl.* @matthias-springer
-/mlir/include/mlir/Interfaces/SubsetOpInterface.* @matthias-springer
-/mlir/lib/Interfaces/SubsetOpInterface.* @matthias-springer
-/mlir/**/SubsetOpInterfaceImpl.* @matthias-springer
-/mlir/include/mlir/Interfaces/DestinationStyleOpInterface.* @matthias-springer
-/mlir/lib/Interfaces/DestinationStyleOpInterface.* @matthias-springer
-
-# Bufferization Dialect in MLIR.
-/mlir/include/mlir/Dialect/Bufferization @matthias-springer
-/mlir/lib/Dialect/Bufferization @matthias-springer
-/mlir/**/BufferizableOpInterfaceImpl.* @matthias-springer
-/mlir/Dialect/*/Transforms/Bufferize.cpp @matthias-springer
-
-# Linalg Dialect in MLIR.
-/mlir/include/mlir/Dialect/Linalg @dcaballe @nicolasvasilache @rengolin
-/mlir/lib/Dialect/Linalg @dcaballe @nicolasvasilache @rengolin
-/mlir/lib/Dialect/Linalg/Transforms/DecomposeLinalgOps.cpp @MaheshRavishankar @nicolasvasilache
-/mlir/lib/Dialect/Linalg/Transforms/DropUnitDims.cpp @dcaballe @MaheshRavishankar @nicolasvasilache
-/mlir/lib/Dialect/Linalg/Transforms/ElementwiseOpFusion.cpp @MaheshRavishankar @nicolasvasilache
-/mlir/lib/Dialect/Linalg/Transforms/DataLayoutPropagation.cpp @hanhanW @nicolasvasilache
-/mlir/lib/Dialect/Linalg/Transforms/Transforms.cpp @dcaballe @hanhanW @nicolasvasilache
-/mlir/lib/Dialect/Linalg/Transforms/Vectorization.cpp @banach-space @dcaballe @hanhanW @nicolasvasilache @Groverkss
-
-# MemRef Dialect in MLIR.
-/mlir/lib/Dialect/MemRef/Transforms/EmulateNarrowType.cpp @MaheshRavishankar @nicolasvasilache
-
-# Vector Dialect in MLIR.
-/mlir/**/*AMX* @aartbik @dcaballe
-/mlir/**/*Neon* @banach-space @dcaballe @nicolasvasilache
-/mlir/**/*SME* @banach-space @dcaballe @nicolasvasilache
-/mlir/**/*SVE* @banach-space @dcaballe @nicolasvasilache
-/mlir/**/*VectorInterfaces* @dcaballe @nicolasvasilache
-/mlir/**/*VectorToSCF* @banach-space @dcaballe @matthias-springer @nicolasvasilache
-/mlir/**/*VectorToLLVM* @banach-space @dcaballe @nicolasvasilache
-/mlir/**/*X86Vector* @aartbik @dcaballe @nicolasvasilache
-/mlir/include/mlir/Dialect/Vector @banach-space @dcaballe @nicolasvasilache @Groverkss
-/mlir/include/mlir/Dialect/Vector/IR @kuhar
-/mlir/lib/Dialect/Vector @banach-space @dcaballe @nicolasvasilache @Groverkss
-/mlir/lib/Dialect/Vector/Transforms/* @banach-space @dcaballe @hanhanW @nicolasvasilache
-/mlir/lib/Dialect/Vector/Transforms/VectorEmulateNarrowType.cpp @banach-space @dcaballe @MaheshRavishankar @nicolasvasilache
-/mlir/**/*EmulateNarrowType* @dcaballe @hanhanW
-
-# Presburger library in MLIR
-/mlir/**/*Presburger* @Groverkss @Superty
-
-# Tensor Dialect in MLIR.
-/mlir/lib/Dialect/Tensor/IR/TensorTilingInterfaceImpl.cpp @hanhanW @nicolasvasilache
-/mlir/lib/Dialect/Tensor/Transforms/* @hanhanW @nicolasvasilache
-
-# Transform Dialect in MLIR.
-/mlir/include/mlir/Dialect/Transform/* @ftynse @nicolasvasilache
-/mlir/lib/Dialect/Transform/* @ftynse @nicolasvasilache
-/mlir/**/*TransformOps* @ftynse @nicolasvasilache
-
-# SPIR-V Dialect in MLIR.
-/mlir/**/SPIRV/ @antiagainst @kuhar
-/mlir/**/SPIRVTo*/ @antiagainst @kuhar
-/mlir/**/*ToSPIRV/ @antiagainst @kuhar
-/mlir/tools/mlir-tblgen/SPIRVUtilsGen.cpp @antiagainst @kuhar
-
-# MLIR Sparsifier.
-/mlir/**/*SparseTensor*/ @aartbik @PeimingLiu @yinying-lisa-li @matthias-springer
-
-# MLIR NVGPU Dialect
-/mlir/**/NVGPU*/ @grypp
-/mlir/test/**/CUDA/ @grypp
-
-# MLIR NVVM Dialect in MLIR
-/mlir/**/LLVMIR/**/BasicPtxBuilderInterface* @grypp
-/mlir/**/NVVM* @grypp
-
-# MLIR Index Dialect
-/mlir/**/Index* @mogball
-
-# MLIR Python Bindings
-/mlir/test/python/ @ftynse @makslevental @stellaraccident
-/mlir/python/ @ftynse @makslevental @stellaraccident
-
-# MLIR Mem2Reg/SROA
-/mlir/**/Transforms/Mem2Reg.* @moxinilian
-/mlir/**/Transforms/SROA.* @moxinilian
-
-# BOLT
-/bolt/ @aaupov @maksfb @rafaelauler @ayermolo @yota9 @paschalis-mpeis
-
-# Bazel build system.
-/utils/bazel/ @rupprecht @keith @aaronmondal
-
-# InstallAPI and TextAPI
-/llvm/**/TextAPI/ @cyndyishida
-/clang/**/InstallAPI/ @cyndyishida
-/clang/tools/clang-installapi/ @cyndyishida
-
-# ExtractAPI
-/clang/**/ExtractAPI @daniel-grumberg @QuietMisdreavus
-
-# DWARFLinker, dwarfutil, dsymutil
-/llvm/**/DWARFLinker/ @JDevlieghere
-/llvm/**/dsymutil/ @JDevlieghere
-/llvm/**/llvm-dwarfutil/ @JDevlieghere
-
-# libclang/Python bindings
-/clang/bindings/python @DeinAlptraum
+# For the release branch @swiftlang/llvm-project-branch-managers needs to approve the changes
+* @swiftlang/llvm-project-branch-managers