1 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=CHECK %s 2 3 ;CHECK-LABEL: {{^}}ret: 4 ;CHECK: v_cmp_eq_u32_e32 [[CMP:[^,]+]], v0, v1 5 ;CHECK: s_wqm_b64 [[WQM:[^,]+]], [[CMP]] 6 ;CHECK: v_cndmask_b32_e64 v0, 0, 1.0, [[WQM]] 7 define amdgpu_ps float @ret(i32 %v0, i32 %v1) #1 { 8 main_body: 9 %c = icmp eq i32 %v0, %v1 10 %w = call i1 @llvm.amdgcn.wqm.vote(i1 %c) 11 %r = select i1 %w, float 1.0, float 0.0 12 ret float %r 13 } 14 15 ;CHECK-LABEL: {{^}}true: 16 ;CHECK: s_wqm_b64 17 define amdgpu_ps float @true() #1 { 18 main_body: 19 %w = call i1 @llvm.amdgcn.wqm.vote(i1 true) 20 %r = select i1 %w, float 1.0, float 0.0 21 ret float %r 22 } 23 24 ;CHECK-LABEL: {{^}}false: 25 ;CHECK: s_wqm_b64 26 define amdgpu_ps float @false() #1 { 27 main_body: 28 %w = call i1 @llvm.amdgcn.wqm.vote(i1 false) 29 %r = select i1 %w, float 1.0, float 0.0 30 ret float %r 31 } 32 33 ;CHECK-LABEL: {{^}}kill: 34 ;CHECK: v_cmp_eq_u32_e32 [[CMP:[^,]+]], v0, v1 35 ;CHECK: s_wqm_b64 [[WQM:[^,]+]], [[CMP]] 36 ;FIXME: This could just be: s_and_b64 exec, exec, [[WQM]] 37 ;CHECK: v_cndmask_b32_e64 [[KILL:[^,]+]], -1.0, 1.0, [[WQM]] 38 ;CHECK: v_cmpx_le_f32_e32 {{[^,]+}}, 0, [[KILL]] 39 ;CHECK: s_endpgm 40 define amdgpu_ps void @kill(i32 %v0, i32 %v1) #1 { 41 main_body: 42 %c = icmp eq i32 %v0, %v1 43 %w = call i1 @llvm.amdgcn.wqm.vote(i1 %c) 44 %r = select i1 %w, float 1.0, float -1.0 45 call void @llvm.AMDGPU.kill(float %r) 46 ret void 47 } 48 49 declare void @llvm.AMDGPU.kill(float) #1 50 declare i1 @llvm.amdgcn.wqm.vote(i1) 51 52 attributes #1 = { nounwind } 53
