derek.holloway
7502bf64a4
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32 lines
1.3 KiB
LLVM
32 lines
1.3 KiB
LLVM
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx950 < %s | FileCheck -check-prefix=GCN %s
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; RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx950 < %s | FileCheck -check-prefix=MESA %s
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; gfx950 supports upto 160 KB configurable LDS memory.
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; This test checks the max and above the old i.e. 128 KiB size of LDS that can be allocated.
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@lds.i32 = addrspace(3) global i32 poison
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@lds.array.size.131076 = addrspace(3) global [32768 x i32] poison
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@lds.array.size.163840 = addrspace(3) global [40959 x i32] poison
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; GCN-LABEL: test_lds_array_size_131076:
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; GCN: .amdhsa_group_segment_fixed_size 131076
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; GCN: ; LDSByteSize: 131076 bytes/workgroup
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; MESA: granulated_lds_size = 65
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define amdgpu_kernel void @test_lds_array_size_131076() {
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%gep = getelementptr inbounds [32768 x i32], ptr addrspace(3) @lds.array.size.131076, i32 0, i32 20
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%val = load i32, ptr addrspace(3) %gep
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store i32 %val, ptr addrspace(3) @lds.i32
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ret void
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}
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; GCN-LABEL: test_lds_array_size_163840:
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; GCN: .amdhsa_group_segment_fixed_size 163840
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; GCN: ; LDSByteSize: 163840 bytes/workgroup
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; MESA: granulated_lds_size = 80
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define amdgpu_kernel void @test_lds_array_size_163840() {
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%gep = getelementptr inbounds [40959 x i32], ptr addrspace(3) @lds.array.size.163840 , i32 0, i32 20
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%val = load i32, ptr addrspace(3) %gep
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store i32 %val, ptr addrspace(3) @lds.i32
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ret void
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}
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