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llvm-6502/test/CodeGen/R600/si-triv-disjoint-mem-access.ll
Tom Stellard 1f996fa36b R600/SI: Add a stub GCNTargetMachine 
This is equivalent to the AMDGPUTargetMachine now, but it is the
starting point for separating R600 and GCN functionality into separate
targets.

It is recommened that users start using the gcn triple for GCN-based
GPUs, because using the r600 triple for these GPUs will be deprecated in
the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225277 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-06 18:00:21 +00:00

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; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs -enable-misched -enable-aa-sched-mi < %s | FileCheck -check-prefix=FUNC -check-prefix=CI %s
declare void @llvm.SI.tbuffer.store.i32(<16 x i8>, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32)
declare void @llvm.SI.tbuffer.store.v4i32(<16 x i8>, <4 x i32>, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32)
declare void @llvm.AMDGPU.barrier.local() #2
@stored_lds_ptr = addrspace(3) global i32 addrspace(3)* undef, align 4
@stored_constant_ptr = addrspace(3) global i32 addrspace(2)* undef, align 8
@stored_global_ptr = addrspace(3) global i32 addrspace(1)* undef, align 8
; FUNC-LABEL: @reorder_local_load_global_store_local_load
; CI: ds_read_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:4
; CI-NEXT: ds_read_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:8
; CI: buffer_store_dword
define void @reorder_local_load_global_store_local_load(i32 addrspace(1)* %out, i32 addrspace(1)* %gptr) #0 {
%ptr0 = load i32 addrspace(3)* addrspace(3)* @stored_lds_ptr, align 4
%ptr1 = getelementptr inbounds i32 addrspace(3)* %ptr0, i32 1
%ptr2 = getelementptr inbounds i32 addrspace(3)* %ptr0, i32 2
%tmp1 = load i32 addrspace(3)* %ptr1, align 4
store i32 99, i32 addrspace(1)* %gptr, align 4
%tmp2 = load i32 addrspace(3)* %ptr2, align 4
%add = add nsw i32 %tmp1, %tmp2
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @no_reorder_local_load_volatile_global_store_local_load
; CI: ds_read_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:4
; CI: buffer_store_dword
; CI: ds_read_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:8
define void @no_reorder_local_load_volatile_global_store_local_load(i32 addrspace(1)* %out, i32 addrspace(1)* %gptr) #0 {
%ptr0 = load i32 addrspace(3)* addrspace(3)* @stored_lds_ptr, align 4
%ptr1 = getelementptr inbounds i32 addrspace(3)* %ptr0, i32 1
%ptr2 = getelementptr inbounds i32 addrspace(3)* %ptr0, i32 2
%tmp1 = load i32 addrspace(3)* %ptr1, align 4
store volatile i32 99, i32 addrspace(1)* %gptr, align 4
%tmp2 = load i32 addrspace(3)* %ptr2, align 4
%add = add nsw i32 %tmp1, %tmp2
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @no_reorder_barrier_local_load_global_store_local_load
; CI: ds_read_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:4
; CI: buffer_store_dword
; CI: ds_read_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:8
define void @no_reorder_barrier_local_load_global_store_local_load(i32 addrspace(1)* %out, i32 addrspace(1)* %gptr) #0 {
%ptr0 = load i32 addrspace(3)* addrspace(3)* @stored_lds_ptr, align 4
%ptr1 = getelementptr inbounds i32 addrspace(3)* %ptr0, i32 1
%ptr2 = getelementptr inbounds i32 addrspace(3)* %ptr0, i32 2
%tmp1 = load i32 addrspace(3)* %ptr1, align 4
store i32 99, i32 addrspace(1)* %gptr, align 4
call void @llvm.AMDGPU.barrier.local() #2
%tmp2 = load i32 addrspace(3)* %ptr2, align 4
%add = add nsw i32 %tmp1, %tmp2
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; Technically we could reorder these, but just comparing the
; instruction type of the load is insufficient.
; FUNC-LABEL: @no_reorder_constant_load_global_store_constant_load
; CI: buffer_load_dword
; CI: buffer_store_dword
; CI: buffer_load_dword
; CI: buffer_store_dword
define void @no_reorder_constant_load_global_store_constant_load(i32 addrspace(1)* %out, i32 addrspace(1)* %gptr) #0 {
%ptr0 = load i32 addrspace(2)* addrspace(3)* @stored_constant_ptr, align 8
%ptr1 = getelementptr inbounds i32 addrspace(2)* %ptr0, i64 1
%ptr2 = getelementptr inbounds i32 addrspace(2)* %ptr0, i64 2
%tmp1 = load i32 addrspace(2)* %ptr1, align 4
store i32 99, i32 addrspace(1)* %gptr, align 4
%tmp2 = load i32 addrspace(2)* %ptr2, align 4
%add = add nsw i32 %tmp1, %tmp2
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; XXX: Should be able to reorder this, but the laods count as ordered
; FUNC-LABEL: @reorder_constant_load_local_store_constant_load
; CI: buffer_load_dword
; CI: ds_write_b32
; CI: buffer_load_dword
; CI: buffer_store_dword
define void @reorder_constant_load_local_store_constant_load(i32 addrspace(1)* %out, i32 addrspace(3)* %lptr) #0 {
%ptr0 = load i32 addrspace(2)* addrspace(3)* @stored_constant_ptr, align 8
%ptr1 = getelementptr inbounds i32 addrspace(2)* %ptr0, i64 1
%ptr2 = getelementptr inbounds i32 addrspace(2)* %ptr0, i64 2
%tmp1 = load i32 addrspace(2)* %ptr1, align 4
store i32 99, i32 addrspace(3)* %lptr, align 4
%tmp2 = load i32 addrspace(2)* %ptr2, align 4
%add = add nsw i32 %tmp1, %tmp2
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @reorder_smrd_load_local_store_smrd_load
; CI: s_load_dword
; CI: s_load_dword
; CI: s_load_dword
; CI: ds_write_b32
; CI: buffer_store_dword
define void @reorder_smrd_load_local_store_smrd_load(i32 addrspace(1)* %out, i32 addrspace(3)* noalias %lptr, i32 addrspace(2)* %ptr0) #0 {
%ptr1 = getelementptr inbounds i32 addrspace(2)* %ptr0, i64 1
%ptr2 = getelementptr inbounds i32 addrspace(2)* %ptr0, i64 2
%tmp1 = load i32 addrspace(2)* %ptr1, align 4
store i32 99, i32 addrspace(3)* %lptr, align 4
%tmp2 = load i32 addrspace(2)* %ptr2, align 4
%add = add nsw i32 %tmp1, %tmp2
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @reorder_global_load_local_store_global_load
; CI: buffer_load_dword
; CI: buffer_load_dword
; CI: ds_write_b32
; CI: buffer_store_dword
define void @reorder_global_load_local_store_global_load(i32 addrspace(1)* %out, i32 addrspace(3)* %lptr, i32 addrspace(1)* %ptr0) #0 {
%ptr1 = getelementptr inbounds i32 addrspace(1)* %ptr0, i64 1
%ptr2 = getelementptr inbounds i32 addrspace(1)* %ptr0, i64 2
%tmp1 = load i32 addrspace(1)* %ptr1, align 4
store i32 99, i32 addrspace(3)* %lptr, align 4
%tmp2 = load i32 addrspace(1)* %ptr2, align 4
%add = add nsw i32 %tmp1, %tmp2
store i32 %add, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @reorder_local_offsets
; CI: ds_write_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:12
; CI: ds_read_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:400
; CI: ds_read_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:404
; CI: ds_write_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:400
; CI: ds_write_b32 {{v[0-9]+}}, {{v[0-9]+}} offset:404
; CI: buffer_store_dword
; CI: s_endpgm
define void @reorder_local_offsets(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* noalias nocapture readnone %gptr, i32 addrspace(3)* noalias nocapture %ptr0) #0 {
%ptr1 = getelementptr inbounds i32 addrspace(3)* %ptr0, i32 3
%ptr2 = getelementptr inbounds i32 addrspace(3)* %ptr0, i32 100
%ptr3 = getelementptr inbounds i32 addrspace(3)* %ptr0, i32 101
store i32 123, i32 addrspace(3)* %ptr1, align 4
%tmp1 = load i32 addrspace(3)* %ptr2, align 4
%tmp2 = load i32 addrspace(3)* %ptr3, align 4
store i32 123, i32 addrspace(3)* %ptr2, align 4
%tmp3 = load i32 addrspace(3)* %ptr1, align 4
store i32 789, i32 addrspace(3)* %ptr3, align 4
%add.0 = add nsw i32 %tmp2, %tmp1
%add.1 = add nsw i32 %add.0, %tmp3
store i32 %add.1, i32 addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @reorder_global_offsets
; CI: buffer_store_dword {{v[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}}, 0 offset:12
; CI: buffer_load_dword {{v[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}}, 0 offset:400
; CI: buffer_load_dword {{v[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}}, 0 offset:404
; CI: buffer_store_dword {{v[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}}, 0 offset:400
; CI: buffer_store_dword {{v[0-9]+}}, {{s\[[0-9]+:[0-9]+\]}}, 0 offset:404
; CI: buffer_store_dword
; CI: s_endpgm
define void @reorder_global_offsets(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* noalias nocapture readnone %gptr, i32 addrspace(1)* noalias nocapture %ptr0) #0 {
%ptr1 = getelementptr inbounds i32 addrspace(1)* %ptr0, i32 3
%ptr2 = getelementptr inbounds i32 addrspace(1)* %ptr0, i32 100
%ptr3 = getelementptr inbounds i32 addrspace(1)* %ptr0, i32 101
store i32 123, i32 addrspace(1)* %ptr1, align 4
%tmp1 = load i32 addrspace(1)* %ptr2, align 4
%tmp2 = load i32 addrspace(1)* %ptr3, align 4
store i32 123, i32 addrspace(1)* %ptr2, align 4
%tmp3 = load i32 addrspace(1)* %ptr1, align 4
store i32 789, i32 addrspace(1)* %ptr3, align 4
%add.0 = add nsw i32 %tmp2, %tmp1
%add.1 = add nsw i32 %add.0, %tmp3
store i32 %add.1, i32 addrspace(1)* %out, align 4
ret void
}
; XFUNC-LABEL: @reorder_local_load_tbuffer_store_local_load
; XCI: ds_read_b32 {{v[0-9]+}}, {{v[0-9]+}}, 0x4
; XCI: TBUFFER_STORE_FORMAT
; XCI: ds_read_b32 {{v[0-9]+}}, {{v[0-9]+}}, 0x8
; define void @reorder_local_load_tbuffer_store_local_load(i32 addrspace(1)* %out, i32 %a1, i32 %vaddr) #1 {
; %ptr0 = load i32 addrspace(3)* addrspace(3)* @stored_lds_ptr, align 4
; %ptr1 = getelementptr inbounds i32 addrspace(3)* %ptr0, i32 1
; %ptr2 = getelementptr inbounds i32 addrspace(3)* %ptr0, i32 2
; %tmp1 = load i32 addrspace(3)* %ptr1, align 4
; %vdata = insertelement <4 x i32> undef, i32 %a1, i32 0
; call void @llvm.SI.tbuffer.store.v4i32(<16 x i8> undef, <4 x i32> %vdata,
; i32 4, i32 %vaddr, i32 0, i32 32, i32 14, i32 4, i32 1, i32 0, i32 1,
; i32 1, i32 0)
; %tmp2 = load i32 addrspace(3)* %ptr2, align 4
; %add = add nsw i32 %tmp1, %tmp2
; store i32 %add, i32 addrspace(1)* %out, align 4
; ret void
; }
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "stack-protector-buffer-size"="8" "unsafe-fp-math"="true" "use-soft-float"="false" }
attributes #1 = { "ShaderType"="1" nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "stack-protector-buffer-size"="8" "unsafe-fp-math"="true" "use-soft-float"="false" }
attributes #2 = { nounwind noduplicate }
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