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 10 define void @select0(i64 addrspace(1)* %out, i32 %cond, i64 %in) { 11 entry: 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 21 define 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 32 define 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 43 define 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 57 define 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
