49 lines
2.1 KiB
LLVM
49 lines
2.1 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=CI %s
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; The memory operand was dropped from the buffer_load_dword_offset
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; when replaced with the addr64 during operand legalization, resulting
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; in the global loads not being scheduled together.
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; GCN-LABEL: {{^}}reschedule_global_load_lds_store:
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; GCN: buffer_load_dword
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; GCN: buffer_load_dword
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; GCN: ds_write2_b32
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; GCN: s_endpgm
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define void @reschedule_global_load_lds_store(i32 addrspace(1)* noalias %gptr0, i32 addrspace(1)* noalias %gptr1, i32 addrspace(3)* noalias %lptr, i32 %c) #0 {
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entry:
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%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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%idx = shl i32 %tid, 2
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%gep0 = getelementptr i32, i32 addrspace(1)* %gptr0, i32 %idx
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%gep1 = getelementptr i32, i32 addrspace(1)* %gptr1, i32 %idx
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%gep2 = getelementptr i32, i32 addrspace(3)* %lptr, i32 %tid
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%cmp0 = icmp eq i32 %c, 0
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br i1 %cmp0, label %for.body, label %exit
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for.body: ; preds = %for.body, %entry
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%i = phi i32 [ 0, %entry ], [ %i.inc, %for.body ]
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%gptr0.phi = phi i32 addrspace(1)* [ %gep0, %entry ], [ %gep0.inc, %for.body ]
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%gptr1.phi = phi i32 addrspace(1)* [ %gep1, %entry ], [ %gep1.inc, %for.body ]
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%lptr0.phi = phi i32 addrspace(3)* [ %gep2, %entry ], [ %gep2.inc, %for.body ]
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%lptr1 = getelementptr i32, i32 addrspace(3)* %lptr0.phi, i32 2
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%val0 = load i32, i32 addrspace(1)* %gep0
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store i32 %val0, i32 addrspace(3)* %lptr0.phi
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%val1 = load i32, i32 addrspace(1)* %gep1
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store i32 %val1, i32 addrspace(3)* %lptr1
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%gep0.inc = getelementptr i32, i32 addrspace(1)* %gptr0.phi, i32 4
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%gep1.inc = getelementptr i32, i32 addrspace(1)* %gptr1.phi, i32 4
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%gep2.inc = getelementptr i32, i32 addrspace(3)* %lptr0.phi, i32 4
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%i.inc = add nsw i32 %i, 1
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%cmp1 = icmp ne i32 %i, 256
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br i1 %cmp1, label %for.body, label %exit
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exit: ; preds = %for.body, %entry
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ret void
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}
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; Function Attrs: nounwind readnone
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declare i32 @llvm.amdgcn.workitem.id.x() #1
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone }
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attributes #2 = { convergent nounwind }
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