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|
; RUN: llc -amdgpu-scalarize-global-loads=false -verify-machineinstrs -march=amdgcn < %s | FileCheck -enable-var-scope -check-prefix=GCN %s
; RUN: llc -amdgpu-scalarize-global-loads=false -verify-machineinstrs -march=amdgcn -mcpu=tonga < %s | FileCheck -enable-var-scope -check-prefix=GCN %s
; When a frame index offset is more than 12-bits, make sure we don't store
; it in mubuf's offset field.
; Also, make sure we use the same register for storing the scratch buffer addresss
; for both stores. This register is allocated by the register scavenger, so we
; should be able to reuse the same regiser for each scratch buffer access.
; GCN-LABEL: {{^}}legal_offset_fi:
; GCN: buffer_store_dword v{{[0-9]+}}, off, s[{{[0-9]+}}:{{[0-9]+}}], 0 offset:4{{$}}
; GCN: v_mov_b32_e32 [[OFFSET:v[0-9]+]], 0x8004
; GCN: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], 0 offen{{$}}
define amdgpu_kernel void @legal_offset_fi(i32 addrspace(1)* %out, i32 %cond, i32 %if_offset, i32 %else_offset) {
entry:
%scratch0 = alloca [8192 x i32], addrspace(5)
%scratch1 = alloca [8192 x i32], addrspace(5)
%scratchptr0 = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch0, i32 0, i32 0
store i32 1, i32 addrspace(5)* %scratchptr0
%scratchptr1 = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch1, i32 0, i32 0
store i32 2, i32 addrspace(5)* %scratchptr1
%cmp = icmp eq i32 %cond, 0
br i1 %cmp, label %if, label %else
if:
%if_ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch0, i32 0, i32 %if_offset
%if_value = load i32, i32 addrspace(5)* %if_ptr
br label %done
else:
%else_ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch1, i32 0, i32 %else_offset
%else_value = load i32, i32 addrspace(5)* %else_ptr
br label %done
done:
%value = phi i32 [%if_value, %if], [%else_value, %else]
store i32 %value, i32 addrspace(1)* %out
ret void
ret void
}
; GCN-LABEL: {{^}}legal_offset_fi_offset:
; GCN-DAG: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+}}:{{[0-9]+}}], 0 offen{{$}}
; This constant isn't folded, because it has multiple uses.
; GCN-DAG: v_mov_b32_e32 [[K8000:v[0-9]+]], 0x8004
; GCN-DAG: v_add_{{[iu]}}32_e32 [[OFFSET:v[0-9]+]], vcc, [[K8000]]
; GCN: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], 0 offen{{$}}
define amdgpu_kernel void @legal_offset_fi_offset(i32 addrspace(1)* %out, i32 %cond, i32 addrspace(1)* %offsets, i32 %if_offset, i32 %else_offset) {
entry:
%scratch0 = alloca [8192 x i32], addrspace(5)
%scratch1 = alloca [8192 x i32], addrspace(5)
%offset0 = load i32, i32 addrspace(1)* %offsets
%scratchptr0 = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch0, i32 0, i32 %offset0
store i32 %offset0, i32 addrspace(5)* %scratchptr0
%offsetptr1 = getelementptr i32, i32 addrspace(1)* %offsets, i32 1
%offset1 = load i32, i32 addrspace(1)* %offsetptr1
%scratchptr1 = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch1, i32 0, i32 %offset1
store i32 %offset1, i32 addrspace(5)* %scratchptr1
%cmp = icmp eq i32 %cond, 0
br i1 %cmp, label %if, label %else
if:
%if_ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch0, i32 0, i32 %if_offset
%if_value = load i32, i32 addrspace(5)* %if_ptr
br label %done
else:
%else_ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %scratch1, i32 0, i32 %else_offset
%else_value = load i32, i32 addrspace(5)* %else_ptr
br label %done
done:
%value = phi i32 [%if_value, %if], [%else_value, %else]
store i32 %value, i32 addrspace(1)* %out
ret void
}
; GCN-LABEL: {{^}}neg_vaddr_offset_inbounds:
; GCN: v_add_{{[iu]}}32_e32 [[ADD:v[0-9]+]], vcc, 16, v{{[0-9]+}}
; GCN: buffer_store_dword v{{[0-9]+}}, [[ADD]], s[{{[0-9]+:[0-9]+}}], 0 offen{{$}}
define amdgpu_kernel void @neg_vaddr_offset_inbounds(i32 %offset) {
entry:
%array = alloca [8192 x i32], addrspace(5)
%ptr_offset = add i32 %offset, 4
%ptr = getelementptr inbounds [8192 x i32], [8192 x i32] addrspace(5)* %array, i32 0, i32 %ptr_offset
store i32 0, i32 addrspace(5)* %ptr
ret void
}
; GCN-LABEL: {{^}}neg_vaddr_offset:
; GCN: v_add_{{[iu]}}32_e32 [[ADD:v[0-9]+]], vcc, 16, v{{[0-9]+}}
; GCN: buffer_store_dword v{{[0-9]+}}, [[ADD]], s[{{[0-9]+:[0-9]+}}], 0 offen{{$}}
define amdgpu_kernel void @neg_vaddr_offset(i32 %offset) {
entry:
%array = alloca [8192 x i32], addrspace(5)
%ptr_offset = add i32 %offset, 4
%ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %array, i32 0, i32 %ptr_offset
store i32 0, i32 addrspace(5)* %ptr
ret void
}
; GCN-LABEL: {{^}}pos_vaddr_offset:
; GCN: buffer_store_dword v{{[0-9]+}}, off, s[{{[0-9]+:[0-9]+}}], 0 offset:20
define amdgpu_kernel void @pos_vaddr_offset(i32 addrspace(1)* %out, i32 %offset) {
entry:
%array = alloca [8192 x i32], addrspace(5)
%ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %array, i32 0, i32 4
store i32 0, i32 addrspace(5)* %ptr
%load_ptr = getelementptr [8192 x i32], [8192 x i32] addrspace(5)* %array, i32 0, i32 %offset
%val = load i32, i32 addrspace(5)* %load_ptr
store i32 %val, i32 addrspace(1)* %out
ret void
}
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