1 ; RUN: llc -march=amdgcn -mattr=+promote-alloca -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s 2 3 declare {}* @llvm.invariant.start(i64, i8* nocapture) #0 4 declare void @llvm.invariant.end({}*, i64, i8* nocapture) #0 5 declare i8* @llvm.invariant.group.barrier(i8*) #1 6 7 ; GCN-LABEL: {{^}}use_invariant_promotable_lds: 8 ; GCN: buffer_load_dword 9 ; GCN: ds_write_b32 10 define void @use_invariant_promotable_lds(i32 addrspace(1)* %arg) #2 { 11 bb: 12 %tmp = alloca i32, align 4 13 %tmp1 = bitcast i32* %tmp to i8* 14 %tmp2 = getelementptr inbounds i32, i32 addrspace(1)* %arg, i64 1 15 %tmp3 = load i32, i32 addrspace(1)* %tmp2 16 store i32 %tmp3, i32* %tmp 17 %tmp4 = call {}* @llvm.invariant.start(i64 4, i8* %tmp1) #0 18 call void @llvm.invariant.end({}* %tmp4, i64 4, i8* %tmp1) #0 19 %tmp5 = call i8* @llvm.invariant.group.barrier(i8* %tmp1) #1 20 ret void 21 } 22 23 attributes #0 = { argmemonly nounwind } 24 attributes #1 = { nounwind readnone } 25 attributes #2 = { nounwind } 26
