derek.holloway
7502bf64a4
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48 lines
2.3 KiB
C++
48 lines
2.3 KiB
C++
// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fclangir -emit-cir %s -o %t.cir
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// RUN: FileCheck --input-file=%t.cir %s -check-prefix=CIR
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// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fclangir -emit-llvm %s -o %t.ll
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// RUN: FileCheck --input-file=%t.ll %s -check-prefix=LLVM
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// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -emit-llvm %s -o %t.ll
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// RUN: FileCheck --input-file=%t.ll %s -check-prefix=OGCG
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// Test that address space casts are inserted when passing pointers in
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// non-default address spaces (global AS 1, private AS 5 on AMDGPU) to
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// functions expecting flat (generic) pointers.
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int globalVar = 42;
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void takes_ptr(int *p);
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// CIR-LABEL: cir.func{{.*}} @_Z20call_with_global_ptrv()
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// CIR: %[[GPTR:.*]] = cir.get_global @globalVar : !cir.ptr<!s32i, target_address_space(1)>
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// CIR-NEXT: %[[CAST:.*]] = cir.cast address_space %[[GPTR]] : !cir.ptr<!s32i, target_address_space(1)> -> !cir.ptr<!s32i>
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// CIR-NEXT: cir.call @_Z9takes_ptrPi(%[[CAST]])
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// LLVM-LABEL: define{{.*}} void @_Z20call_with_global_ptrv()
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// LLVM: call void @_Z9takes_ptrPi(ptr noundef addrspacecast (ptr addrspace(1) @globalVar to ptr))
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// OGCG-LABEL: define{{.*}} void @_Z20call_with_global_ptrv()
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// OGCG: call void @_Z9takes_ptrPi(ptr noundef addrspacecast (ptr addrspace(1) @globalVar to ptr))
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void call_with_global_ptr() {
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takes_ptr(&globalVar);
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}
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// CIR-LABEL: cir.func{{.*}} @_Z19call_with_local_ptrv()
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// CIR: %[[ALLOCA:.*]] = cir.alloca !s32i, !cir.ptr<!s32i, target_address_space(5)>
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// CIR: %[[CAST:.*]] = cir.cast address_space %[[ALLOCA]] : !cir.ptr<!s32i, target_address_space(5)> -> !cir.ptr<!s32i>
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// CIR: cir.call @_Z9takes_ptrPi(%[[CAST]])
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// LLVM-LABEL: define{{.*}} void @_Z19call_with_local_ptrv()
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// LLVM: %[[ALLOCA:.*]] = alloca i32, i64 1, align 4, addrspace(5)
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// LLVM: %[[CAST:.*]] = addrspacecast ptr addrspace(5) %[[ALLOCA]] to ptr
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// LLVM: call void @_Z9takes_ptrPi(ptr noundef %[[CAST]])
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// OGCG-LABEL: define{{.*}} void @_Z19call_with_local_ptrv()
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// OGCG: %[[ALLOCA:.*]] = alloca i32, align 4, addrspace(5)
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// OGCG-NEXT: %[[CAST:.*]] = addrspacecast ptr addrspace(5) %[[ALLOCA]] to ptr
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// OGCG: call void @_Z9takes_ptrPi(ptr noundef %[[CAST]])
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void call_with_local_ptr() {
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int x = 1;
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takes_ptr(&x);
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}
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