GitLab

* [Enhancement] Introduce non-restrict parameter support in code generation

- Added a new PrimFunc-level attribute `tl.non_restrict_params` to specify handle Vars that should not be marked with the restrict qualifier during code generation.
- Updated `CodeGenTileLangCPP`, `CodeGenTileLangCUDA`, and `CodeGenTileLangHIP` to handle non-restrict parameters, ensuring proper treatment of overlapping buffer aliases.
- Implemented a new annotation function `annotate_restrict_buffers` to facilitate the marking of buffer parameters as non-restrict.
- Enhanced the `SplitHostDevice` transformation to propagate non-restrict parameters from host to device functions.
- Added a new transform function `HoistNonRestrictParams` to manage non-restrict parameters effectively.

* [Enhancement] Improve HoistNonRestrictParams transformation

- Updated the HoistNonRestrictParams function to recursively collect all `tl.non_restrict_params` annotations from nested blocks, enhancing flexibility in annotation placement.
- Introduced a new NonRestrictCollector class to manage the collection and deduplication of non-restrict parameters.
- Modified the SplitHostDevice transformation to remove the non-restrict attribute from the host-side PrimFunc after propagation to device kernels.
- Adjusted the LowerAndLegalize function to directly apply the HoistNonRestrictParams transformation without exception handling, streamlining the process.

* [Refactor] Simplify non-restrict parameter handling in code generation

- Removed unnecessary normalization logic and associated data structures from `CodeGenTileLangCPP`, `CodeGenTileLangCUDA`, and `CodeGenTileLangHIP`.
- Streamlined the handling of non-restrict parameters by directly inserting them into the `non_restrict` set, improving code clarity and maintainability.
- Updated conditional checks to eliminate redundant checks against normalized names, enhancing performance and readability.

* [Dependency] Update TVM subproject to latest commit 68aa8461

- Updated the TVM subproject to the latest commit, ensuring compatibility with recent changes and improvements.
- Refactored non-restrict parameter handling in `CodeGenTileLangCPP`, `CodeGenTileLangCUDA`, and `CodeGenTileLangHIP` to enhance code clarity and maintainability.
- Adjusted the `SplitHostDevice` transformation to streamline the propagation of non-restrict parameters.

* fix

* [Enhancement] Update KernelParam to use tvm.DataType directly and add torch_dtype conversion method

- Changed dtype in KernelParam from torch.dtype to tvm.DataType to support a wider range of data types and prevent information loss during conversions.
- Added a new method, torch_dtype, to convert tvm.DataType back to torch.dtype for tensor creation.
- Updated various adapters to utilize the new torch_dtype method for parameter type conversion during initialization.

* [Enhancement] Refactor CUDA type handling and add support for FP4 and FP8 types

- Renamed functions for clarity: GetFP8Type, GetFP6Type, and GetFP4Type are now GetTileLangFP8Type, GetTileLangFP6Type, and GetTileLangFP4Type respectively.
- Enhanced FP4 type handling to support additional lane sizes (2, 4, 8, 16, 32, 64).
- Updated CUDA code generation to include new FP8 and FP4 types, ensuring proper type handling in PrintType and related functions.
- Introduced new structures for FP8 types in cuda_fp8.h to facilitate better memory management and type packing.
- Added methods in KernelParam and tensor utilities to recognize and handle float4 types, improving compatibility with PyTorch.
- Enhanced logging for debugging purposes in various CUDA functions to track type handling and memory operations more effectively.

* lint fix

* Remove unnecessary logging statements from CUDA code generation and delete obsolete matrix multiplication test file.

* [Enhancement] Add support for FP4 and FP8 types in CUDA code generation

- Enhanced PrintVecElemLoad and PrintVecElemStore functions to handle new FP4 types.
- Updated arg_binder to allow float4 to match int8 at runtime, improving compatibility with PyTorch.
- Modified loop_vectorize to account for buffer dtype lanes in vectorization calculations.
- Refactored tensor type mapping to support new float4 and float8 types, ensuring correct type handling in tensor operations.
- Added tests for FP4 and FP8 copy operations to validate functionality and integration with existing workflows.

---------
Co-authored-by: Zhiwen Mo <zm125@ic.ac.uk>

* [Feature] Support region as input of T.cumsum

- Extend T.cumsum to accept BufferRegion and BufferLoad inputs in addition to Buffer
- This enables operations on buffer slices/regions like:
  T.cumsum(InputG_fragment[i * chunk_size:(i + 1) * chunk_size], dim=0)
- Update cumsum_fragment to handle region inputs properly
- Add comprehensive tests for 1D and 2D region inputs including normal and reverse modes

Fixes #879

* Fix formatting and add docstring for cumsum_fragment

- Add comprehensive docstring for cumsum_fragment function
- Format code according to ruff style guidelines

* Fix CodeRabbit review issues

- Fix negative dimension bounds check (dim < -len(shape) instead of dim <= -len(shape))
- Add src/dst shape compatibility validation for out-of-place cumsum
- Update copy() type annotation to accept BufferRegion as dst parameter
- Fix test in-place mutation issues by using out-of-place cumsum operations
- Add non-divisible size test cases for tail region coverage

* Fix out-of-bounds access in region tests

- Add bounds clamping using T.min() for chunk_end calculations
- Prevents accessing beyond tensor bounds for non-divisible sizes
- Matches reference implementation behavior
- Fixes both 1D and 2D region test cases

* Fix region test: use simple slice expressions instead of T.min()

- Remove T.min() which cannot be used directly in slice indices
- Use chunk_start + chunk_size form instead
- Rely on system's automatic bounds checking for non-divisible sizes
- Update comments to reflect this approach

* Fix cumsum region: use region extents in lowering and update tests for shared memory

* Simplify fragment scope check using is_fragment()

---------
Co-authored-by: LeiWang1999 <leiwang1999@outlook.com>

* Introduced a new function, IsExprInvariantInVectorBoundary, to encapsulate the logic for checking if an expression is invariant within vector boundaries, improving code clarity and reusability.
* Updated the existing vectorization logic to utilize this new function, streamlining the process of determining vectorization feasibility based on boundary conditions.
* Enhanced comments for better understanding of the vectorization criteria and mathematical rationale behind the checks.

* [Refactor] Refactor InjectAssumes logic and make assumes work after SplitHostDevice

* address comments

* fix

* fix submodule

* fix

* fix 3rdparty

* Added detailed logging for data and shape variable parameters during buffer usage detection in the MakePackedAPI function.
* Refactored the UsedBufferDetector to differentiate between used parameters by data and shape variables, enhancing clarity in buffer management.
* Updated logic to ensure minimal carrier buffers are selected for shape symbols, improving the efficiency of parameter handling.

* [Enhancement] Add device compile flags support in pass configuration

* Introduced `kDeviceCompileFlags` option in the pass configuration to allow additional device compiler flags for CUDA compilation.
* Updated the `tilelang_callback_cuda_compile` function to merge extra flags from the pass configuration, enhancing flexibility in compiler options.
* Modified the `JITKernel` class to handle device compile flags appropriately, ensuring they are included during compilation.
* Documented the new pass configuration key for clarity on usage and expected input formats.

* lint fix

* [Refactor] Simplify compile_flags handling in JIT functions

* Removed redundant string check for compile_flags in the compile, jit, and lazy_jit functions, ensuring compile_flags is consistently treated as a list.
* Updated the JITKernel class to handle compile_flags as a list when a string is provided, enhancing code clarity and maintainability.

* lint fix

* fix

* Phase out primitives

* revert changes

* Refactor GemmWarpPolicy method signature for clarity

Updated the `from_warp_partition` method in the `GemmWarpPolicy` class to return the type `GemmWarpPolicy` instead of a string, enhancing type safety and clarity in the codebase. Removed an unnecessary blank line for improved readability.

* fix

* [Enhancement] Add read-only parameter annotation for CUDA codegen

* Introduced the `AnnotateReadOnlyParams` transformation to annotate read-only handle parameters in PrimFuncs, enabling the generation of `const` qualifiers in CUDA codegen.
* Updated `PrintFunctionSignature` and `AddFunction` methods to utilize the new attribute `tl.readonly_param_indices`, enhancing performance by allowing read-only cache loads.
* Modified the optimization pipeline to include the new annotation step, improving the overall efficiency of the code generation process.

* lint fix

* [Dependency] Update apache-tvm-ffi version to >=0.1.3

* Updated the version of apache-tvm-ffi in pyproject.toml, requirements.txt, and requirements-dev.txt to ensure compatibility with the latest features and fixes.
* Made adjustments in CUDA and HIP template files to use `const` qualifiers for global pointer parameters, enhancing code safety and clarity.

* lint fix

* [Enhancement] Refactor ReadWriteMarker for improved parameter handling

* Updated the ReadWriteMarker class to accept a set of parameter or data variables, enhancing its ability to track written variables.
* Introduced a new method, ResolveDataVarFromPtrArg, to resolve underlying buffer data from pointer-like arguments, improving accuracy in identifying written variables.
* Modified the MarkReadOnlyParams function to gather handle parameters and their corresponding buffer data variables, streamlining the process of determining read-only parameters.
* Enhanced the logic for identifying written variables to account for aliased data variables, ensuring comprehensive tracking of modifications.

* lint fix

* Update tma_load function to use const qualifier for global memory pointer

* Changed the parameter type of gmem_ptr in the tma_load function from void* to void const* to enhance type safety and clarity in memory operations.
* This modification ensures that the function correctly handles read-only global memory pointers, aligning with best practices in CUDA programming.

* Remove commented-out code and reorder transformations in OptimizeForTarget function for clarity

* Refactor buffer marking logic in annotate_read_only_params.cc to improve accuracy in identifying written variables. Update OptimizeForTarget function to reorder transformations for better clarity.

* [Enhancement] Update AtomicAdd function signature to accept pointer to destination

* Modified AtomicAdd in CUDA to take a pointer instead of a reference for the destination argument.
* Updated related code in atomicadd_vectorize.cc to ensure compatibility with the new signature.
* Adjusted Python interface in atomic.py to pass the destination by pointer, aligning with device function requirements.

* [Enhancement] Refactor AtomicAddRet function signature to accept pointer

* Updated AtomicAddRet in both CUDA and HIP to take a pointer instead of a reference for the address argument, improving consistency with the AtomicAdd function.
* Adjusted the implementation to ensure proper reinterpretation of the address type for atomic operations.

* lint fix

* [Enhancement] Refactor AtomicAddNode::MakeSIMTLoop to use destination pointer

* Updated the MakeSIMTLoop function to build a pointer to the destination element using tvm_access_ptr instead of loading the destination value directly.
* Simplified the handling of source and destination predicates, improving clarity and maintainability of the code.
* Ensured compatibility with the new pointer-based approach for atomic operations.

* lint fix

* test fix

* lint fix

* Improve loop vectorize

* Improve loop vectorize

* Improve loop vectorize

* Improve loop vectorize

* Improve loop vectorize

* Add some vectorize tests and comments

* [Enhancement] Add __ldg intrinsic for CUDA read-only cache loads

* Introduced the __ldg intrinsic to enable explicit read-only cached loads from global memory in CUDA.
* Updated the corresponding documentation and added support in both CUDA and HIP code generation.
* Enhanced the Python interface for __ldg to accept BufferLoad and Buffer types, improving usability.

* [Enhancement] Update formatting and linting rules in pyproject.toml; minor test adjustment

* Added new formatting rules in pyproject.toml to enforce consistent code style, including hanging indents and argument splitting.
* Updated test_tilelang_language_intrinsics_codegen.py to improve readability by adding a blank line before the main execution block.
* Refactored error messages in builtin.py for better clarity and consistency, ensuring proper formatting in function definitions and raising ValueErrors.

* lint fix

* enable FA2 on AMD MI300X

* make lint happy

* [Dependency] Update apache-tvm-ffi version to >=0.1.2 in project files

* [Dependency] Update subproject commit for TVM to latest version afc07935

* [Enhancement] Add support for optional step parameter in loop constructs

- Updated loop creation functions to accept an optional step parameter, enhancing flexibility in loop definitions.
- Modified ForFrame implementations to utilize the new step parameter across various loop types including serial, parallel, and pipelined loops.
- Adjusted related vectorization transformations to accommodate the step parameter, ensuring consistent behavior in loop vectorization processes.

* lint fix

* [Build] Update CMake configuration for tilelang_cython_wrapper installation

- Adjusted output directories for the tilelang_cython_wrapper to ensure that development builds place the extension in build/lib.
- Updated installation paths to place the extension in tilelang/lib within the wheel, improving organization and avoiding potential conflicts with other modules.
- Modified the internal library path exposure in env.py to prevent shadowing of common module names, enhancing compatibility and usability in user projects.

* [Build] Standardize output directories for tilelang libraries

- Set output directories for both tilelang and tilelang_module libraries to "${CMAKE_BINARY_DIR}/lib" for consistency in development builds.
- This change enhances organization and ensures that all build artifacts are located in a unified directory structure.

* [Refactor] Update TVM subproject and enhance pipeline loop handling

- Updated the TVM subproject to commit 90581fe9e5287bbcf1844ad14255a1e1e8cdf7f0.
- Added new fields to `PipelineAnnotation` and `RewrittenBlockInfo` structures to track original statement indices and improve async state management.
- Refactored `EmitImpl` and `PopulateWaitCounts` methods to enhance clarity and functionality, including better handling of commit groups and wait counts.
- Simplified access index calculations and strengthened analyzer constraints for loop bounds.

* [Cleanup] Remove license block and unused includes from inject_pipeline.cc

- Eliminated the Apache license block from the top of the file to streamline the code.
- Removed unused include directives for memory and stringstream to enhance code clarity and reduce unnecessary dependencies.

* [Refactor] Enhance transformation pipeline and test execution

- Added an additional Simplify transformation in the InjectSoftwarePipeline to improve optimization.
- Updated the test file to call `test_trival_pipeline()` directly, commenting out the previous main execution for better test isolation.

* Provide layout visualization tool

Adds a layout visualization tool to TileLang, which helps users understand and debug the layout transformations applied during compilation.

This tool visualizes the memory layout of tensors at different stages of the compilation process, allowing developers to identify potential inefficiencies and optimize their code for better performance.

The visualization can be enabled via a pass config option.

* format

* add layout visual example

* Adds vis extra with matplotlib dependency

* rafactor pass config name

* fix lint

* Enables configurable layout visualization formats

Allows users to specify the output formats (png, pdf, svg) for layout visualization through a pass config option.

This change provides more flexibility in how layout visualizations are generated, allowing users to choose the formats that best suit their needs.

It also fixes a bug where layout visualization was not correctly disabled when the config option was set to "false".

* Adds visual layout inference tool docs

* fix lint

* fix lint

* Rafactor configurable layout visualization formats

* fix lint

* fix typo

* add some comments

* fix lints

* add some warnings for user

* Moves layout visualization

* Refactors layout visualization pass configuration

Updates the layout visualization pass configuration to use boolean flag for enabling and a string for specifying formats.

* Enables multiple layout visualization formats

* Updates layout visualization docs

* Moves layout visualization to analysis

* Update submodule TVM to latest commit and add PlanAndUpdateBufferAllocationLocation function to transform module

- Updated the TVM submodule to commit 3a32b763.
- Added a new function `PlanAndUpdateBufferAllocationLocation` in the transform module to facilitate buffer allocation planning within PrimFuncs.

* Refactor buffer allocation code for improved readability and consistency

- Updated formatting and spacing in `plan_update_buffer_allocation_location.cc` for better code clarity.
- Standardized the use of pointer and reference syntax across various class methods.
- Enhanced comments for better understanding of buffer allocation logic.
- Removed unnecessary lines and improved overall code structure.

* Refactor buffer allocation checks for improved clarity

- Replaced size checks with empty checks for `ffi::Array<Buffer>` in `plan_update_buffer_allocation_location.cc` to enhance code readability.
- Updated conditions in multiple methods to use `empty()` instead of comparing size to zero, streamlining the logic.

* [Refactor] Update condition for benchmarking in example_gemv.py and simplify cached library path handling in sparse.py

* [Enhancement] Extend support for float8 data types in GEMM operations

- Updated GEMM operations to recognize additional float8 data types: `float8_e4m3fn` and `float8_e5m2fnuz`.
- Refactored condition checks in `checkWgmma` methods to simplify float8 type handling.
- Adjusted test cases to ensure compatibility with the new float8 types in tile language examples.

* lint fix

* [Enhancement] Add injective layout detection and exception handling

- Introduced `DetectInjective` method in `FragmentNode` to check for injective layouts.
- Added `LoopLayoutInjectiveException` to handle errors related to non-injective layouts.
- Updated `InferLayout` methods in `ParallelOpNode` to utilize injective checks and log relevant information.
- Refactored layout inference queue management to use `std::deque` for improved performance and added prioritization logic for buffer layouts.

* remove debug print

* remove debug print

* remove debug print

* minor layout fix

* fix for T.view

* [Enhancement] Improve injective layout detection in FragmentNode

- Updated the `DetectInjective` method to handle symbolic dimensions more effectively by introducing a mechanism to collect symbolic shapes and adjust the detection level accordingly.
- Added logging for cases where the layout detection falls back to NoCheck due to symbolic dimensions.
- Minor update to the test file to include the tilelang testing module.

* [Refactor] Simplify layout inference for bulk copy operations

- Removed unnecessary conditions for bulk load/store operations in the layout inference logic.
- Streamlined the handling of layout application for bulk copy instances to enhance clarity and maintainability.

* remove debug print

* [Enhancement] Introduce layout-related exceptions and improve error handling

- Added `LayoutConflictException` and `LoopLayoutInjectiveException` classes for better exception management in layout operations.
- Updated `InferLayout` method in `ParallelOpNode` to throw `LoopLayoutInjectiveException` with detailed error information when injective layout checks fail.
- Removed redundant exception class definitions from `parallel.h` to streamline code organization.

* [Refactor] Update condition for benchmarking in example_gemv.py and simplify cached library path handling in sparse.py

* [Enhancement] Extend support for float8 data types in GEMM operations

- Updated GEMM operations to recognize additional float8 data types: `float8_e4m3fn` and `float8_e5m2fnuz`.
- Refactored condition checks in `checkWgmma` methods to simplify float8 type handling.
- Adjusted test cases to ensure compatibility with the new float8 types in tile language examples.

* lint fix

* [Enhancement] Implement dynamic unroll factor in CUDA code generation

This commit introduces support for specifying a dynamic unroll factor in the CUDA code generation. The `unroll_factor` map is added to store unroll factors for loop variables, allowing for more flexible and optimized loop unrolling. Additionally, the `unroll` function is integrated into the loop language, enabling users to define unroll factors directly in their code. This enhancement improves performance by allowing tailored unrolling strategies based on specific loop characteristics.

* lint fix

* [Bugfix] Correct initialization of non-zero counters in custom compress kernel and update TIR registration for gemm_sp_py to use the correct tile operation

* [misc] add a cpp side wrapper for gemm_sp_py

* [misc] typing

* [IR] bind GemmSPWarpPolicy

* [chore] add wrapper code

* [IR] fix GemmSPWarpPolicy

* [codegen] apply ptxas instructions

* [intrinsic] add typical (unused) mma layout

* [template] add uint16 debug func

* [intrinsic] add b matrix layout

* [gemm_sp] enable fp16/bf16 on sm8x

* [layout] refactor fp16/bf16 layout

* [gemm_sp] enable int8

* [chore] update test case dtype

* [gemm_sp] enable fp32

* [layout] refactor layouts

* [intrinsic] enable ldmatrix for mat A

* [layout] enable ldsm for matrix b

* [layout] add ldmatrix for fp32 and fp8

* [chore] refine

* [chore] refactor

* [chore] add fp8 efactor

* [chore] refactor

* [chore] add remove negative zero util

* [example] add a custom compress kernel

* [chore] minor update

* [test] refactor gemm_sp test

* [refactor] make metadata layout func

* [example] add option for using cutlass layout

* [doc] add a gemm_sp doc

* [doc] minor polish

* [chore] remove unused

* [bugfix] fix non replicate b case

* [test] refactor

* [chore] add a check

* [bugfix] fix util bug

* [wip] init a new test case for v2

* [chore] minor refactor

* [chore] minor update

* [bugfix] enable 16bit rs

* [language] enable rs

* [language] enable gemm_sp_sr

* [language] enable gemm_sp_rr

* [test] enable more tests

* [tvm] update ffi binding

* [chore] remove print

* [chore] fix benchmark script

* [lint] precommit lint

* [chore] apply feedback

* [test] use arch 8.0

* [chore] rollback ::ordered_metadata for backward compatibility

* [bugfix] fix captialized

* [example] keep gemm_sp on hopper

* [test] fix no fp8 normal kernel

* [test] reduce matmul size to satisfy accum error

* [test] use cal_diff for assertion

* [bugfix] expand float8 type

* [lib] add make_int4 for short type

* [language] add transpose E

* [bugfix] fix wrong var

* [format] format

* [chore] refactor binding

* [chore] fix wrong passing var

* [Analysis] Enhance NestedLoopChecker with tile op cases

* fix tileop issue

This commit refines the Fragment creation process in the InferLayout method of ParallelOpNode. It removes the unnecessary forward_index array and utilizes default fragment indexing for consistency with other operations. Additionally, it binds the thread range to enhance comparability across different operations.

* disable overflow-prone floordiv optimization in lower_intrin.cc

* disable overflow-prone floordiv optimization in lower_intrin.cc

[Enhancement] Improve error handling and assertion messages across runtime and argument binding (#1356)

This commit enhances the error handling mechanisms in the runtime by introducing CPU-safe runtime helpers and refining assertion messages in the CodeGenCHost and ArgBinder. It includes structured packed error messages for various conditions, improving clarity in diagnostics. Additionally, the CMake configuration is updated to always include necessary runtime helpers, ensuring consistent error reporting. The changes aim to provide clearer feedback during runtime errors and improve the overall robustness of the argument binding process.

This commit refines the logic for determining the sign state of indices in the LegalizeNegativeIndex transformation. It prioritizes vector patterns, specifically Ramp and Broadcast nodes, to avoid compile-time lane queries. The handling of scalar indices is also streamlined, ensuring clearer diagnostics when non-negativity cannot be proven. These changes enhance the robustness and clarity of index handling in the transformation pass.

* [Refactor] Improve assertion handling in CodeGenCHost and ArgBinder

This commit refines the assertion message generation in CodeGenCHost by optimizing the handling of equality checks and reducing buffer size for error messages. Additionally, it enhances the ArgBinder by introducing a nullable guard mechanism for assertions, allowing for more precise error handling when binding arguments. The changes improve the clarity and efficiency of assertion handling across the codebase.

* [Enhancement] Update matmul kernel and optimize argument binding

This commit enhances the matmul kernel by introducing additional tensor parameters and refining the pipeline stages for improved performance. It also updates the argument binding mechanism to include a flag indicating whether buffers are used, enhancing the efficiency of buffer management. Furthermore, the optimization phase in the engine is improved by adding a simplification step, ensuring better performance and clarity in the generated code.

* lint fix

* [Enhancement] Add tensor checks documentation and improve argument binding assertions

This commit introduces a new documentation page for host-side tensor checks, detailing the automatic validations performed by TileLang on kernel arguments. It enhances the ArgBinder by adding assertions for non-null pointers when arguments are used, improving error handling. Additionally, the optimization phase in the engine is updated to include a simplification step, ensuring better performance and clarity in the generated code.

* [Enhancement] Update .gitignore and refine matmul kernel for improved performance

This commit adds host checks logs to the .gitignore file to prevent unnecessary log files from being tracked. Additionally, it refines the matmul kernel by adjusting pipeline stages, updating tensor parameters, and enhancing argument handling for better performance. The changes also include improved error messages in the argument binding process, ensuring clearer diagnostics for users.

* lint fix

* lint fix

* [Refactor] Simplify tensor_null_test function and remove ptr_null_test

This commit refactors the tensor_null_test function by adding a with_bias parameter and removing the ptr_null_test function, which was previously unused. The run_test function is updated to reflect these changes, streamlining the testing process for tensor operations.

* lint fix

* fix

* add support for k_pack

* support benchmark on ROCm

* fix format

* [Refactor] Enhance CopyNode's IterVar Creation and Range Handling

This commit refines the `MakeIterVars` method in `CopyNode` to select base ranges based on memory scope levels, ensuring that the chosen ranges are not smaller than the original source ranges. Additionally, it updates the Python `copy` function to clarify range handling, including broadcasting logic and extent alignment. These changes improve the robustness and clarity of the copy operation's implementation.

* test fix

* feat: add fp8 variants; add placeholder for fp6/fp4 in meta

support ld with pack for fp32 dtype

add dump

add tempalte expand

remove unused dtype and change to rebased apis

* fix: when atom-m!=128, enable_ws

* fix: typo in tcgen05 meta; dispatch in gemm sm100

* Refactor GEMM and Reduce operations by moving NormalizeToBufferRegion and MakeAccessPtrFromRegion to utils.{h,cc} for better code organization and reuse.

* lint fix

* Refactor region handling by removing the RegionOp and updating NormalizeToBufferRegion to only accept BufferLoad and BufferRegion. This change improves code organization and simplifies the handling of memory regions across various operations.

* fix

* Refactor memory region handling by introducing `tl.region` calls across various operations, including GEMM and fill functions. This change enhances the consistency of region management and improves code organization by utilizing utility functions for buffer region conversions.

* fix

* fix

* test fix

* lint fix

* Refactor GEMM operations to improve memory region handling by replacing `mbarPtr_` with `mbarRegion_` and updating related logic in both C++ and Python implementations. This change enhances the clarity and consistency of buffer region management.

* fix

* lint fix

* fix

* fix

* test fix

* lint fix

* lint fix

* minor fix

* fix

---------
Co-authored-by: Zhiwen Mo <zm125@ic.ac.uk>

This commit enhances the LegalizeNegativeIndex transformation pass to handle
both buffer load and store operations with negative indices and adds some
test cases.

* [Fix] fix copy from or to local buffer (#1304)

* fix lint error

* minor fix testing script