1 ; RUN: opt < %s -O3 -S | FileCheck %s 2 3 ; Make sure the call to syncthreads is not duplicate here by the LLVM 4 ; optimizations, because it has the noduplicate attribute set. 5 6 ; CHECK: call void @llvm.nvvm.barrier0 7 ; CHECK-NOT: call void @llvm.nvvm.barrier0 8 9 ; Function Attrs: nounwind 10 define void @foo(float* %output) #1 { 11 entry: 12 %output.addr = alloca float*, align 8 13 store float* %output, float** %output.addr, align 8 14 %0 = load float*, float** %output.addr, align 8 15 %arrayidx = getelementptr inbounds float, float* %0, i64 0 16 %1 = load float, float* %arrayidx, align 4 17 %conv = fpext float %1 to double 18 %cmp = fcmp olt double %conv, 1.000000e+01 19 br i1 %cmp, label %if.then, label %if.else 20 21 if.then: ; preds = %entry 22 %2 = load float*, float** %output.addr, align 8 23 %3 = load float, float* %2, align 4 24 %conv1 = fpext float %3 to double 25 %add = fadd double %conv1, 1.000000e+00 26 %conv2 = fptrunc double %add to float 27 store float %conv2, float* %2, align 4 28 br label %if.end 29 30 if.else: ; preds = %entry 31 %4 = load float*, float** %output.addr, align 8 32 %5 = load float, float* %4, align 4 33 %conv3 = fpext float %5 to double 34 %add4 = fadd double %conv3, 2.000000e+00 35 %conv5 = fptrunc double %add4 to float 36 store float %conv5, float* %4, align 4 37 br label %if.end 38 39 if.end: ; preds = %if.else, %if.then 40 call void @llvm.nvvm.barrier0() 41 %6 = load float*, float** %output.addr, align 8 42 %arrayidx6 = getelementptr inbounds float, float* %6, i64 0 43 %7 = load float, float* %arrayidx6, align 4 44 %conv7 = fpext float %7 to double 45 %cmp8 = fcmp olt double %conv7, 1.000000e+01 46 br i1 %cmp8, label %if.then9, label %if.else13 47 48 if.then9: ; preds = %if.end 49 %8 = load float*, float** %output.addr, align 8 50 %9 = load float, float* %8, align 4 51 %conv10 = fpext float %9 to double 52 %add11 = fadd double %conv10, 3.000000e+00 53 %conv12 = fptrunc double %add11 to float 54 store float %conv12, float* %8, align 4 55 br label %if.end17 56 57 if.else13: ; preds = %if.end 58 %10 = load float*, float** %output.addr, align 8 59 %11 = load float, float* %10, align 4 60 %conv14 = fpext float %11 to double 61 %add15 = fadd double %conv14, 4.000000e+00 62 %conv16 = fptrunc double %add15 to float 63 store float %conv16, float* %10, align 4 64 br label %if.end17 65 66 if.end17: ; preds = %if.else13, %if.then9 67 ret void 68 } 69 70 ; Function Attrs: noduplicate nounwind 71 declare void @llvm.nvvm.barrier0() #2 72 73 !0 = !{void (float*)* @foo, !"kernel", i32 1} 74 !1 = !{null, !"align", i32 8} 75
