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Remove vestigial AMDGPU backend #8382

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Aug 9, 2024
Merged

Remove vestigial AMDGPU backend #8382

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2 changes: 1 addition & 1 deletion CMakeLists.txt
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Expand Up @@ -189,7 +189,7 @@ find_package(Threads REQUIRED)
## LLVM
find_package(Halide_LLVM 17...20 REQUIRED
COMPONENTS WebAssembly X86
OPTIONAL_COMPONENTS AArch64 AMDGPU ARM Hexagon NVPTX PowerPC RISCV)
OPTIONAL_COMPONENTS AArch64 ARM Hexagon NVPTX PowerPC RISCV)

## Image formats

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8 changes: 0 additions & 8 deletions Makefile
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Expand Up @@ -118,8 +118,6 @@ WITH_AARCH64 ?= $(findstring aarch64, $(LLVM_COMPONENTS))
WITH_POWERPC ?= $(findstring powerpc, $(LLVM_COMPONENTS))
WITH_NVPTX ?= $(findstring nvptx, $(LLVM_COMPONENTS))
WITH_WEBASSEMBLY ?= $(findstring webassembly, $(LLVM_COMPONENTS))
# AMDGPU target is WIP
WITH_AMDGPU ?= $(findstring amdgpu, $(LLVM_COMPONENTS))
WITH_OPENCL ?= not-empty
WITH_METAL ?= not-empty
WITH_D3D12 ?= not-empty
Expand Down Expand Up @@ -147,10 +145,6 @@ PTX_CXX_FLAGS=$(if $(WITH_NVPTX), -DWITH_NVPTX, )
PTX_LLVM_CONFIG_LIB=$(if $(WITH_NVPTX), nvptx, )
PTX_DEVICE_INITIAL_MODULES=$(if $(WITH_NVPTX), libdevice.compute_20.10.bc libdevice.compute_30.10.bc libdevice.compute_35.10.bc, )

AMDGPU_CXX_FLAGS=$(if $(WITH_AMDGPU), -DWITH_AMDGPU, )
AMDGPU_LLVM_CONFIG_LIB=$(if $(WITH_AMDGPU), amdgpu, )
# TODO add bitcode files

OPENCL_CXX_FLAGS=$(if $(WITH_OPENCL), -DWITH_OPENCL, )
OPENCL_LLVM_CONFIG_LIB=$(if $(WITH_OPENCL), , )

Expand Down Expand Up @@ -213,7 +207,6 @@ CXX_FLAGS += $(D3D12_CXX_FLAGS)
CXX_FLAGS += $(WEBGPU_CXX_FLAGS)
CXX_FLAGS += $(POWERPC_CXX_FLAGS)
CXX_FLAGS += $(EXCEPTIONS_CXX_FLAGS)
CXX_FLAGS += $(AMDGPU_CXX_FLAGS)
CXX_FLAGS += $(RISCV_CXX_FLAGS)
CXX_FLAGS += $(SPIRV_CXX_FLAGS)
CXX_FLAGS += $(VULKAN_CXX_FLAGS)
Expand Down Expand Up @@ -248,7 +241,6 @@ LLVM_STATIC_LIBFILES = \
$(AARCH64_LLVM_CONFIG_LIB) \
$(POWERPC_LLVM_CONFIG_LIB) \
$(HEXAGON_LLVM_CONFIG_LIB) \
$(AMDGPU_LLVM_CONFIG_LIB) \
$(SPIRV_LLVM_CONFIG_LIB) \
$(VULKAN_LLVM_CONFIG_LIB) \
$(WEBASSEMBLY_LLVM_CONFIG_LIB) \
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23 changes: 0 additions & 23 deletions README_cmake.md
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Expand Up @@ -432,29 +432,6 @@ apply when `WITH_TESTS=ON`:
| `WITH_TEST_PERFORMANCE` | `ON` | enable performance testing |
| `WITH_TEST_GENERATOR` | `ON` | enable the AOT generator tests |

The following options enable/disable various LLVM backends (they correspond to
LLVM component names):

| Option | Default | Description |
|----------------------|----------------------|-------------------------------------|
| `TARGET_AARCH64` | `ON`, _if available_ | Enable the AArch64 backend |
| `TARGET_AMDGPU` | `ON`, _if available_ | Enable the AMD GPU backend |
| `TARGET_ARM` | `ON`, _if available_ | Enable the ARM backend |
| `TARGET_HEXAGON` | `ON`, _if available_ | Enable the Hexagon backend |
| `TARGET_NVPTX` | `ON`, _if available_ | Enable the NVidia PTX backend |
| `TARGET_POWERPC` | `ON`, _if available_ | Enable the PowerPC backend |
| `TARGET_RISCV` | `ON`, _if available_ | Enable the RISC V backend |
| `TARGET_WEBASSEMBLY` | `ON`, _if available_ | Enable the WebAssembly backend. |
| `TARGET_X86` | `ON`, _if available_ | Enable the x86 (and x86_64) backend |

The following options enable/disable various Halide-specific backends:

| Option | Default | Description |
|-----------------------|---------|----------------------------------------|
| `TARGET_OPENCL` | `ON` | Enable the OpenCL-C backend |
| `TARGET_METAL` | `ON` | Enable the Metal backend |
| `TARGET_D3D12COMPUTE` | `ON` | Enable the Direct3D 12 Compute backend |

The following options are WebAssembly-specific. They only apply when
`TARGET_WEBASSEMBLY=ON`:

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6 changes: 0 additions & 6 deletions src/CodeGen_LLVM.cpp
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Expand Up @@ -95,12 +95,6 @@ using std::vector;
#define InitializeNVPTXAsmPrinter() InitializeAsmPrinter(NVPTX)
#endif

#ifdef WITH_AMDGPU
#define InitializeAMDGPUTarget() InitializeTarget(AMDGPU)
#define InitializeAMDGPUAsmParser() InitializeAsmParser(AMDGPU)
#define InitializeAMDGPUAsmPrinter() InitializeAsmParser(AMDGPU)
#endif

#ifdef WITH_AARCH64
#define InitializeAArch64Target() InitializeTarget(AArch64)
#define InitializeAArch64AsmParser() InitializeAsmParser(AArch64)
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