1; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=MEMTIME -check-prefix=SIVI -check-prefix=GCN %s
2; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=MEMTIME -check-prefix=SIVI -check-prefix=GCN %s
3; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=MEMTIME -check-prefix=GCN %s
4
5declare i64 @llvm.readcyclecounter() #0
6
7; GCN-LABEL: {{^}}test_readcyclecounter:
8; MEMTIME-DAG: s_memtime s{{\[[0-9]+:[0-9]+\]}}
9; GCN-DAG:     s_load_dwordx2
10; GCN-DAG:     lgkmcnt
11; MEMTIME:     store_dwordx2
12; SIVI-NOT:    lgkmcnt
13; MEMTIME:     s_memtime s{{\[[0-9]+:[0-9]+\]}}
14; MEMTIME:     store_dwordx2
15
16define amdgpu_kernel void @test_readcyclecounter(i64 addrspace(1)* %out) #0 {
17  %cycle0 = call i64 @llvm.readcyclecounter()
18  store volatile i64 %cycle0, i64 addrspace(1)* %out
19
20  %cycle1 = call i64 @llvm.readcyclecounter()
21  store volatile i64 %cycle1, i64 addrspace(1)* %out
22  ret void
23}
24
25; This test used to crash in ScheduleDAG.
26;
27; GCN-LABEL: {{^}}test_readcyclecounter_smem:
28; MEMTIME-DAG: s_memtime
29; GCN-DAG:     s_load_dword
30define amdgpu_cs i32 @test_readcyclecounter_smem(i64 addrspace(4)* inreg %in) #0 {
31  %cycle0 = call i64 @llvm.readcyclecounter()
32  %in.v = load i64, i64 addrspace(4)* %in
33  %r.64 = add i64 %cycle0, %in.v
34  %r.32 = trunc i64 %r.64 to i32
35  ret i32 %r.32
36}
37
38attributes #0 = { nounwind }
39