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1; RUN: opt < %s -O3 -S | FileCheck %s2 3; Make sure the call to syncthreads is not duplicate here by the LLVM4; optimizations, because it has the noduplicate attribute set.5 6; CHECK: call void @llvm.nvvm.barrier.cta.sync.aligned.all7; CHECK-NOT: call void @llvm.nvvm.barrier.cta.sync.aligned.all8 9; Function Attrs: nounwind10define void @foo(ptr %output) #1 {11entry:12 %output.addr = alloca ptr, align 813 store ptr %output, ptr %output.addr, align 814 %0 = load ptr, ptr %output.addr, align 815 %1 = load float, ptr %0, align 416 %conv = fpext float %1 to double17 %cmp = fcmp olt double %conv, 1.000000e+0118 br i1 %cmp, label %if.then, label %if.else19 20if.then: ; preds = %entry21 %2 = load ptr, ptr %output.addr, align 822 %3 = load float, ptr %2, align 423 %conv1 = fpext float %3 to double24 %add = fadd double %conv1, 1.000000e+0025 %conv2 = fptrunc double %add to float26 store float %conv2, ptr %2, align 427 br label %if.end28 29if.else: ; preds = %entry30 %4 = load ptr, ptr %output.addr, align 831 %5 = load float, ptr %4, align 432 %conv3 = fpext float %5 to double33 %add4 = fadd double %conv3, 2.000000e+0034 %conv5 = fptrunc double %add4 to float35 store float %conv5, ptr %4, align 436 br label %if.end37 38if.end: ; preds = %if.else, %if.then39 call void @llvm.nvvm.barrier.cta.sync.aligned.all(i32 0)40 %6 = load ptr, ptr %output.addr, align 841 %7 = load float, ptr %6, align 442 %conv7 = fpext float %7 to double43 %cmp8 = fcmp olt double %conv7, 1.000000e+0144 br i1 %cmp8, label %if.then9, label %if.else1345 46if.then9: ; preds = %if.end47 %8 = load ptr, ptr %output.addr, align 848 %9 = load float, ptr %8, align 449 %conv10 = fpext float %9 to double50 %add11 = fadd double %conv10, 3.000000e+0051 %conv12 = fptrunc double %add11 to float52 store float %conv12, ptr %8, align 453 br label %if.end1754 55if.else13: ; preds = %if.end56 %10 = load ptr, ptr %output.addr, align 857 %11 = load float, ptr %10, align 458 %conv14 = fpext float %11 to double59 %add15 = fadd double %conv14, 4.000000e+0060 %conv16 = fptrunc double %add15 to float61 store float %conv16, ptr %10, align 462 br label %if.end1763 64if.end17: ; preds = %if.else13, %if.then965 ret void66}67 68; Function Attrs: noduplicate nounwind69declare void @llvm.nvvm.barrier0() #2