Adds the `GroupMemoryBarrier()` HLSL function to SPIRV and DirectX with
additional tests for the different backends.
When this moves in, will create another PR with this as a template for
the other Barriers:
- `AllMemoryBarrier()` #99076
- `AllMemoryBarrierWithGroupSync()` #99090
- `DeviceMemoryBarrier()` #99105
- `DeviceMemoryBarrierWithGroupSync()` #99106
`Barrier()` does not have support for SPIRV, so I will exclude that from
the next PR.
- [x] Implement GroupMemoryBarrier clang builtin,
- [x] Link GroupMemoryBarrier clang builtin with hlsl_intrinsics.h
- [x] Add sema checks for GroupMemoryBarrier to
CheckHLSLBuiltinFunctionCall in SemaChecking.cpp
- [x] Add codegen for GroupMemoryBarrier to EmitHLSLBuiltinExpr in
CGBuiltin.cpp
- [x] Add codegen tests to
clang/test/CodeGenHLSL/builtins/GroupMemoryBarrier.hlsl
- [x] Add sema tests to
clang/test/SemaHLSL/BuiltIns/GroupMemoryBarrier-errors.hlsl
- [x] Create the int_dx_GroupMemoryBarrier intrinsic in
IntrinsicsDirectX.td
- [x] Create the DXILOpMapping of int_dx_GroupMemoryBarrier to 80 in
DXIL.td
- [x] Create the GroupMemoryBarrier.ll and GroupMemoryBarrier_errors.ll
tests in llvm/test/CodeGen/DirectX/
- [x] Create the int_spv_GroupMemoryBarrier intrinsic in
IntrinsicsSPIRV.td
- [x] In SPIRVInstructionSelector.cpp create the GroupMemoryBarrier
lowering and map it to int_spv_GroupMemoryBarrier in
SPIRVInstructionSelector::selectIntrinsic.
- [x] Create SPIR-V backend test case in
llvm/test/CodeGen/SPIRV/hlsl-intrinsics/GroupMemoryBarrier.ll
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