1; RUN: llc < %s -march=amdgcn -mcpu=SI -verify-machineinstrs | FileCheck %s 2; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck %s 3 4; CHECK-LABEL: {{^}}select0: 5; i64 select should be split into two i32 selects, and we shouldn't need 6; to use a shfit to extract the hi dword of the input. 7; CHECK-NOT: s_lshr_b64 8; CHECK: v_cndmask 9; CHECK: v_cndmask 10define void @select0(i64 addrspace(1)* %out, i32 %cond, i64 %in) { 11entry: 12 %0 = icmp ugt i32 %cond, 5 13 %1 = select i1 %0, i64 0, i64 %in 14 store i64 %1, i64 addrspace(1)* %out 15 ret void 16} 17 18; CHECK-LABEL: {{^}}select_trunc_i64: 19; CHECK: v_cndmask_b32 20; CHECK-NOT: v_cndmask_b32 21define void @select_trunc_i64(i32 addrspace(1)* %out, i32 %cond, i64 %in) nounwind { 22 %cmp = icmp ugt i32 %cond, 5 23 %sel = select i1 %cmp, i64 0, i64 %in 24 %trunc = trunc i64 %sel to i32 25 store i32 %trunc, i32 addrspace(1)* %out, align 4 26 ret void 27} 28 29; CHECK-LABEL: {{^}}select_trunc_i64_2: 30; CHECK: v_cndmask_b32 31; CHECK-NOT: v_cndmask_b32 32define void @select_trunc_i64_2(i32 addrspace(1)* %out, i32 %cond, i64 %a, i64 %b) nounwind { 33 %cmp = icmp ugt i32 %cond, 5 34 %sel = select i1 %cmp, i64 %a, i64 %b 35 %trunc = trunc i64 %sel to i32 36 store i32 %trunc, i32 addrspace(1)* %out, align 4 37 ret void 38} 39 40; CHECK-LABEL: {{^}}v_select_trunc_i64_2: 41; CHECK: v_cndmask_b32 42; CHECK-NOT: v_cndmask_b32 43define void @v_select_trunc_i64_2(i32 addrspace(1)* %out, i32 %cond, i64 addrspace(1)* %aptr, i64 addrspace(1)* %bptr) nounwind { 44 %cmp = icmp ugt i32 %cond, 5 45 %a = load i64, i64 addrspace(1)* %aptr, align 8 46 %b = load i64, i64 addrspace(1)* %bptr, align 8 47 %sel = select i1 %cmp, i64 %a, i64 %b 48 %trunc = trunc i64 %sel to i32 49 store i32 %trunc, i32 addrspace(1)* %out, align 4 50 ret void 51} 52 53; CHECK-LABEL: {{^}}v_select_i64_split_imm: 54; CHECK-DAG: v_cndmask_b32_e32 {{v[0-9]+}}, 0, {{v[0-9]+}} 55; CHECK-DAG: v_cndmask_b32_e32 {{v[0-9]+}}, 63, {{v[0-9]+}} 56; CHECK: s_endpgm 57define void @v_select_i64_split_imm(i64 addrspace(1)* %out, i32 %cond, i64 addrspace(1)* %aptr, i64 addrspace(1)* %bptr) nounwind { 58 %cmp = icmp ugt i32 %cond, 5 59 %a = load i64, i64 addrspace(1)* %aptr, align 8 60 %b = load i64, i64 addrspace(1)* %bptr, align 8 61 %sel = select i1 %cmp, i64 %a, i64 270582939648 ; 63 << 32 62 store i64 %sel, i64 addrspace(1)* %out, align 8 63 ret void 64} 65