forked from OSchip/llvm-project
8d27be8dba
This patch introduces 2 new address spaces in OpenCL: global_device and global_host
which are a subset of a global address space, so the address space scheme will be
looking like:
```
generic->global->host
->device
->private
->local
constant
```
Justification: USM allocations may be associated with both host and device memory. We
want to give users a way to tell the compiler the allocation type of a USM pointer for
optimization purposes. (Link to the Unified Shared Memory extension:
https://github.com/intel/llvm/blob/sycl/sycl/doc/extensions/USM/cl_intel_unified_shared_memory.asciidoc)
Before this patch USM pointer could be only in opencl_global
address space, hence a device backend can't tell if a particular pointer
points to host or device memory. On FPGAs at least we can generate more
efficient hardware code if the user tells us where the pointer can point -
being able to distinguish between these types of pointers at compile time
allows us to instantiate simpler load-store units to perform memory
transactions.
Patch by Dmitry Sidorov.
Reviewed By: Anastasia
Differential Revision: https://reviews.llvm.org/D82174
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| .. | ||
| access-qualifier.cl | ||
| address-spaces-conversions-cl2.0.cl | ||
| address-spaces.cl | ||
| amdgpu-attrs.cl | ||
| arithmetic-conversions.cl | ||
| arm-integer-dot-product.cl | ||
| array-init.cl | ||
| array-parameters.cl | ||
| as_type.cl | ||
| atomic-init.cl | ||
| atomic-ops.cl | ||
| block-array-capturing.cl | ||
| bool-vectors.cl | ||
| builtin.cl | ||
| builtins-amdgcn-error-ci.cl | ||
| builtins-amdgcn-error-f16.cl | ||
| builtins-amdgcn-error-flat-address-space.cl | ||
| builtins-amdgcn-error-gfx9.cl | ||
| builtins-amdgcn-error-gfx10-param.cl | ||
| builtins-amdgcn-error-gfx10.cl | ||
| builtins-amdgcn-error-gfx908-param.cl | ||
| builtins-amdgcn-error-vi.cl | ||
| builtins-amdgcn-error.cl | ||
| cl20-device-side-enqueue.cl | ||
| clang-builtin-version.cl | ||
| clk_event_t.cl | ||
| cond.cl | ||
| convergent.cl | ||
| endian-attr.cl | ||
| event_t.cl | ||
| event_t_overload.cl | ||
| ext_vectors.cl | ||
| extension-begin.cl | ||
| extension-begin.h | ||
| extension-version.cl | ||
| extensions.cl | ||
| fdeclare-opencl-builtins.cl | ||
| format-strings-fixit.cl | ||
| fp-options.cl | ||
| func.cl | ||
| half.cl | ||
| images.cl | ||
| init.cl | ||
| intel-subgroup-avc-ext-types.cl | ||
| invalid-assignment-constant-address-space.cl | ||
| invalid-block.cl | ||
| invalid-constant.cl | ||
| invalid-image.cl | ||
| invalid-kernel-attrs.cl | ||
| invalid-kernel-parameters.cl | ||
| invalid-kernel.cl | ||
| invalid-pipe-builtin-cl2.0.cl | ||
| invalid-pipes-cl2.0.cl | ||
| lit.local.cfg | ||
| logical-ops.cl | ||
| multistep-explicit-cast.cl | ||
| nosvm.cl | ||
| null_literal.cl | ||
| null_queue.cl | ||
| numbered-address-space.cl | ||
| pipes-1.2-negative.cl | ||
| predefined-expr.cl | ||
| printf-format-string-warnings.cl | ||
| printf-format-strings.cl | ||
| queue_t_overload.cl | ||
| recovery-expr.cl | ||
| sampler_t.cl | ||
| sampler_t_overload.cl | ||
| shifts.cl | ||
| sizeof.cl | ||
| storageclass-cl20.cl | ||
| storageclass.cl | ||
| str_literals.cl | ||
| to_addr_builtin.cl | ||
| types.cl | ||
| unroll-hint.cl | ||
| unsupported.cl | ||
| usm-address-spaces-conversions.cl | ||
| vec_compare.cl | ||
| vec_step.cl | ||
| vector_conv_invalid.cl | ||
| vector_inc_dec_ops.cl | ||
| vector_literals_invalid.cl | ||
| vector_swizzle_length.cl | ||
| warn-missing-prototypes.cl | ||