e175d8aba5
Summary: If the scheduler clusters the loads, then the offsets will be sorted, but it is possible for the scheduler to scheduler loads together without out explicitly clustering them, which would give us non-sorted offsets. Also, we will want to do this if we move the load/store optimizer before the scheduler. Reviewers: arsenm Subscribers: arsenm, llvm-commits, kzhuravl Differential Revision: https://reviews.llvm.org/D23776 llvm-svn: 279870
46 lines
1.9 KiB
LLVM
46 lines
1.9 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs -mattr=+load-store-opt < %s | FileCheck -strict-whitespace -check-prefix=SI %s
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; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs -mattr=+load-store-opt < %s | FileCheck -strict-whitespace -check-prefix=SI %s
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@lds = addrspace(3) global [512 x float] undef, align 4
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; offset0 is larger than offset1
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; SI-LABEL: {{^}}offset_order:
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; SI: ds_read2_b32 v[{{[0-9]+}}:{{[0-9]+}}], v{{[0-9]+}} offset0:2 offset1:3
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; SI: ds_read2_b32 v[{{[0-9]+}}:{{[0-9]+}}], v{{[0-9]+}} offset0:12 offset1:14
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; SI: ds_read_b32 v{{[0-9]+}}, v{{[0-9]+}} offset:44
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define void @offset_order(float addrspace(1)* %out) {
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entry:
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%ptr0 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 0
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%val0 = load float, float addrspace(3)* %ptr0
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%ptr1 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 256
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%val1 = load float, float addrspace(3)* %ptr1
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%add1 = fadd float %val0, %val1
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%ptr2 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 3
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%val2 = load float, float addrspace(3)* %ptr2
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%add2 = fadd float %add1, %val2
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%ptr3 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 2
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%val3 = load float, float addrspace(3)* %ptr3
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%add3 = fadd float %add2, %val3
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%ptr4 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 12
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%val4 = load float, float addrspace(3)* %ptr4
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%add4 = fadd float %add3, %val4
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%ptr5 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 14
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%val5 = load float, float addrspace(3)* %ptr5
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%add5 = fadd float %add4, %val5
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%ptr6 = getelementptr inbounds [512 x float], [512 x float] addrspace(3)* @lds, i32 0, i32 11
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%val6 = load float, float addrspace(3)* %ptr6
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%add6 = fadd float %add5, %val6
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store float %add6, float addrspace(1)* %out
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ret void
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}
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