; LLVM IR from intuitive-robots/mdt_policy :: pyhash-0.9.3/src/smhasher/Platform.ll (Z11SetAffinityi)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%struct.cpu_set_t = type { [16 x i64] }

@.str.1 = external hidden unnamed_addr constant [37 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @printf(ptr noundef, ...) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z11SetAffinityi(i32 noundef %0) #2 {
  %2 = alloca i32, align 4
  %3 = alloca %struct.cpu_set_t, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 128, ptr %3) #5
  br label %6

6:                                                ; preds = %1
  call void @llvm.memset.p0.i64(ptr align 8 %3, i8 0, i64 128, i1 false)
  br label %7

7:                                                ; preds = %6
  br label %8

8:                                                ; preds = %7
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  store i64 2, ptr %4, align 8, !tbaa !9
  %9 = load i64, ptr %4, align 8, !tbaa !9
  %10 = udiv i64 %9, 8
  %11 = icmp ult i64 %10, 128
  br i1 %11, label %12, label %23

12:                                               ; preds = %8
  %13 = load i64, ptr %4, align 8, !tbaa !9
  %14 = urem i64 %13, 64
  %15 = shl i64 1, %14
  %16 = getelementptr inbounds %struct.cpu_set_t, ptr %3, i32 0, i32 0
  %17 = getelementptr inbounds [16 x i64], ptr %16, i64 0, i64 0
  %18 = load i64, ptr %4, align 8, !tbaa !9
  %19 = udiv i64 %18, 64
  %20 = getelementptr inbounds i64, ptr %17, i64 %19
  %21 = load i64, ptr %20, align 8, !tbaa !9
  %22 = or i64 %21, %15
  store i64 %22, ptr %20, align 8, !tbaa !9
  br label %24

23:                                               ; preds = %8
  br label %24

24:                                               ; preds = %23, %12
  %25 = phi i64 [ %22, %12 ], [ 0, %23 ]
  store i64 %25, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  %26 = load i64, ptr %5, align 8, !tbaa !9
  %27 = call i32 @sched_setaffinity(i32 noundef 0, i64 noundef 128, ptr noundef %3) #5
  %28 = icmp eq i32 %27, -1
  br i1 %28, label %29, label %31

29:                                               ; preds = %24
  %30 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  br label %31

31:                                               ; preds = %29, %24
  call void @llvm.lifetime.end.p0(i64 128, ptr %3) #5
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

; Function Attrs: nounwind
declare i32 @sched_setaffinity(i32 noundef, i64 noundef, ptr noundef) #4

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%struct.cpu_set_t = type { [16 x i64] }

@.str.1 = external hidden unnamed_addr constant [37 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z11SetAffinityi(i32 noundef %0) local_unnamed_addr #2 {
  %2 = alloca %struct.cpu_set_t, align 8
  call void @llvm.lifetime.start.p0(i64 128, ptr nonnull %2) #5
  %3 = getelementptr inbounds i8, ptr %2, i64 8
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(128) %3, i8 0, i64 120, i1 false)
  store i64 4, ptr %2, align 8, !tbaa !5
  %4 = call i32 @sched_setaffinity(i32 noundef 0, i64 noundef 128, ptr noundef nonnull %2) #5
  %5 = icmp eq i32 %4, -1
  br i1 %5, label %6, label %8

6:                                                ; preds = %1
  %7 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1)
  br label %8

8:                                                ; preds = %6, %1
  call void @llvm.lifetime.end.p0(i64 128, ptr nonnull %2) #5
  ret void
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

; Function Attrs: nounwind
declare i32 @sched_setaffinity(i32 noundef, i64 noundef, ptr noundef) local_unnamed_addr #4

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: DSEPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass