1; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
2; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=kaveri -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
3; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=fiji -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
4
5; GCN-LABEL: {{^}}s_getreg_test:
6; GCN: s_getreg_b32 s{{[0-9]+}}, hwreg(HW_REG_LDS_ALLOC, 8, 23)
7define amdgpu_kernel void @s_getreg_test(i32 addrspace(1)* %out) { ; simm16=45574 for lds size.
8  %lds_size_64dwords = call i32 @llvm.amdgcn.s.getreg(i32 45574)
9  %lds_size_bytes = shl i32 %lds_size_64dwords, 8
10  store i32 %lds_size_bytes, i32 addrspace(1)* %out
11  ret void
12}
13
14; Call site has additional readnone knowledge.
15; GCN-LABEL: {{^}}readnone_s_getreg_test:
16; GCN: s_getreg_b32 s{{[0-9]+}}, hwreg(HW_REG_LDS_ALLOC, 8, 23)
17define amdgpu_kernel void @readnone_s_getreg_test(i32 addrspace(1)* %out) { ; simm16=45574 for lds size.
18  %lds_size_64dwords = call i32 @llvm.amdgcn.s.getreg(i32 45574) #1
19  %lds_size_bytes = shl i32 %lds_size_64dwords, 8
20  store i32 %lds_size_bytes, i32 addrspace(1)* %out
21  ret void
22}
23
24declare i32 @llvm.amdgcn.s.getreg(i32) #0
25
26attributes #0 = { nounwind readonly }
27attributes #1 = { nounwind readnone }
28