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| ; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=MEMTIME -check-prefix=SIVI -check-prefix=GCN %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=MEMTIME -check-prefix=SIVI -check-prefix=GCN %s
; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=MEMTIME -check-prefix=GCN %s
declare i64 @llvm.readcyclecounter() #0
; GCN-LABEL: {{^}}test_readcyclecounter:
; MEMTIME-DAG: s_memtime s{{\[[0-9]+:[0-9]+\]}}
; GCN-DAG: s_load_dwordx2
; GCN-DAG: lgkmcnt
; MEMTIME: store_dwordx2
; SIVI-NOT: lgkmcnt
; MEMTIME: s_memtime s{{\[[0-9]+:[0-9]+\]}}
; MEMTIME: store_dwordx2
define amdgpu_kernel void @test_readcyclecounter(i64 addrspace(1)* %out) #0 {
%cycle0 = call i64 @llvm.readcyclecounter()
store volatile i64 %cycle0, i64 addrspace(1)* %out
%cycle1 = call i64 @llvm.readcyclecounter()
store volatile i64 %cycle1, i64 addrspace(1)* %out
ret void
}
; This test used to crash in ScheduleDAG.
;
; GCN-LABEL: {{^}}test_readcyclecounter_smem:
; MEMTIME-DAG: s_memtime
; GCN-DAG: s_load_dword
define amdgpu_cs i32 @test_readcyclecounter_smem(i64 addrspace(4)* inreg %in) #0 {
%cycle0 = call i64 @llvm.readcyclecounter()
%in.v = load i64, i64 addrspace(4)* %in
%r.64 = add i64 %cycle0, %in.v
%r.32 = trunc i64 %r.64 to i32
ret i32 %r.32
}
attributes #0 = { nounwind }
|