derek.holloway
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67 lines
3.0 KiB
C++
67 lines
3.0 KiB
C++
// Tests for LangAddressSpaceAttr -> TargetAddressSpaceAttr conversion in the
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// cir-target-lowering pass for the AMDGPU target. Exercises:
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// - CIRGlobalOpTargetLowering (GlobalOp addr_space attribute)
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// - CIRFuncOpTargetLowering (FuncOp pointer argument types)
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// - CIRGenericTargetLoweringPattern (get_global result pointer types)
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//
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// AMDGPU address space mapping:
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// offload_global -> 1 (GLOBAL_ADDRESS)
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// offload_local -> 3 (LOCAL_ADDRESS)
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// offload_constant -> 4 (CONSTANT_ADDRESS)
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// offload_private -> 5 (PRIVATE_ADDRESS)
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// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fclangir -emit-cir \
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// RUN: -mmlir -mlir-print-ir-before=cir-target-lowering %s -o %t.cir 2> %t.pre.cir
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// RUN: FileCheck --check-prefix=PRE --input-file=%t.pre.cir %s
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// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fclangir -emit-cir %s -o %t.cir
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// RUN: FileCheck --check-prefix=POST --input-file=%t.cir %s
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// ---- GlobalOp: lang AS emitted before target lowering, target AS after ----
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// Note: opencl_local/opencl_private globals require loader_uninitialized which
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// is NYI in CIR. Those AS are exercised via pointer parameter types below.
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int [[clang::opencl_global]] g_global = 0;
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int [[clang::opencl_constant]] g_constant = 0;
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// PRE-DAG: cir.global {{.*}} lang_address_space(offload_global) @g_global
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// PRE-DAG: cir.global {{.*}} lang_address_space(offload_constant) @g_constant
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// POST-DAG: cir.global {{.*}} target_address_space(1) @g_global
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// POST-DAG: cir.global {{.*}} target_address_space(4) @g_constant
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// ---- FuncOp: pointer args exercise all four lang AS -> target AS ----
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void func_ptr_args(int [[clang::opencl_global]] *global_ptr,
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int [[clang::opencl_local]] *local_ptr,
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int [[clang::opencl_constant]] *const_ptr,
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int [[clang::opencl_private]] *private_ptr) {}
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// PRE: cir.func {{.*}} @_Z13func_ptr_args
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// PRE-SAME: !cir.ptr<!s32i, lang_address_space(offload_global)>
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// PRE-SAME: !cir.ptr<!s32i, lang_address_space(offload_local)>
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// PRE-SAME: !cir.ptr<!s32i, lang_address_space(offload_constant)>
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// PRE-SAME: !cir.ptr<!s32i, lang_address_space(offload_private)>
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// POST: cir.func {{.*}} @_Z13func_ptr_args
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// POST-SAME: !cir.ptr<!s32i, target_address_space(1)>
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// POST-SAME: !cir.ptr<!s32i, target_address_space(3)>
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// POST-SAME: !cir.ptr<!s32i, target_address_space(4)>
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// POST-SAME: !cir.ptr<!s32i, target_address_space(5)>
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// ---- get_global: result pointer type with lang AS -> target AS ----
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void get_globals() {
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(void)g_global;
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(void)g_constant;
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}
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// PRE: cir.func {{.*}} @_Z11get_globalsv
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// PRE: cir.get_global @g_global : !cir.ptr<!s32i, lang_address_space(offload_global)>
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// PRE: cir.get_global @g_constant : !cir.ptr<!s32i, lang_address_space(offload_constant)>
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// POST: cir.func {{.*}} @_Z11get_globalsv
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// POST: cir.get_global @g_global : !cir.ptr<!s32i, target_address_space(1)>
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// POST: cir.get_global @g_constant : !cir.ptr<!s32i, target_address_space(4)>
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