1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3 2; RUN: llc -mtriple amdgcn-amdhsa -mcpu=fiji -amdgpu-scalarize-global-loads -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s 3 4declare i32 @llvm.amdgcn.workitem.id.x() 5declare i32 @llvm.amdgcn.readfirstlane(i32) 6 7define amdgpu_kernel void @readfirstlane_uniform(ptr addrspace(1) noalias nocapture readonly, ptr addrspace(1) noalias nocapture readonly) { 8; GCN-LABEL: readfirstlane_uniform: 9; GCN: ; %bb.0: 10; GCN-NEXT: s_load_dwordx4 s[0:3], s[8:9], 0x0 11; GCN-NEXT: v_readfirstlane_b32 s4, v0 12; GCN-NEXT: s_mov_b32 s5, 0 13; GCN-NEXT: s_lshl_b64 s[4:5], s[4:5], 2 14; GCN-NEXT: s_waitcnt lgkmcnt(0) 15; GCN-NEXT: s_add_u32 s0, s0, s4 16; GCN-NEXT: s_addc_u32 s1, s1, s5 17; GCN-NEXT: s_load_dword s4, s[0:1], 0x0 18; GCN-NEXT: s_add_u32 s0, s2, 40 19; GCN-NEXT: s_addc_u32 s1, s3, 0 20; GCN-NEXT: v_mov_b32_e32 v0, s0 21; GCN-NEXT: v_mov_b32_e32 v1, s1 22; GCN-NEXT: s_waitcnt lgkmcnt(0) 23; GCN-NEXT: v_mov_b32_e32 v2, s4 24; GCN-NEXT: flat_store_dword v[0:1], v2 25; GCN-NEXT: s_endpgm 26 %tid = tail call i32 @llvm.amdgcn.workitem.id.x() 27 %scalar = tail call i32 @llvm.amdgcn.readfirstlane(i32 %tid) 28 %idx = zext i32 %scalar to i64 29 %gep0 = getelementptr inbounds float, ptr addrspace(1) %0, i64 %idx 30 %val = load float, ptr addrspace(1) %gep0, align 4 31 %gep1 = getelementptr inbounds float, ptr addrspace(1) %1, i64 10 32 store float %val, ptr addrspace(1) %gep1, align 4 33 ret void 34} 35