; LLVM IR from viveakrt/Competitive-programing :: SPOJ/treap.ll (Z4initi)

; 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.node = type { i32, i32, i32, i32, i32, i32, ptr, ptr }

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

; 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 noundef ptr @_Z4initi(i32 noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca %struct.node, align 8
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %5 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 40) #6
  store ptr %5, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 40, ptr %4) #5
  %6 = getelementptr inbounds %struct.node, ptr %4, i32 0, i32 0
  store i32 1, ptr %6, align 8, !tbaa !11
  %7 = getelementptr inbounds %struct.node, ptr %4, i32 0, i32 1
  %8 = load i32, ptr %2, align 4, !tbaa !5
  store i32 %8, ptr %7, align 4, !tbaa !13
  %9 = getelementptr inbounds %struct.node, ptr %4, i32 0, i32 2
  %10 = call i32 @rand() #5
  store i32 %10, ptr %9, align 8, !tbaa !14
  %11 = getelementptr inbounds %struct.node, ptr %4, i32 0, i32 3
  %12 = load i32, ptr %2, align 4, !tbaa !5
  store i32 %12, ptr %11, align 4, !tbaa !15
  %13 = getelementptr inbounds %struct.node, ptr %4, i32 0, i32 4
  %14 = load i32, ptr %2, align 4, !tbaa !5
  store i32 %14, ptr %13, align 8, !tbaa !16
  %15 = getelementptr inbounds %struct.node, ptr %4, i32 0, i32 5
  store i32 2147483647, ptr %15, align 4, !tbaa !17
  %16 = getelementptr inbounds %struct.node, ptr %4, i32 0, i32 6
  store ptr null, ptr %16, align 8, !tbaa !18
  %17 = getelementptr inbounds %struct.node, ptr %4, i32 0, i32 7
  store ptr null, ptr %17, align 8, !tbaa !19
  %18 = load ptr, ptr %3, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %18, ptr align 8 %4, i64 40, i1 false), !tbaa.struct !20
  call void @llvm.lifetime.end.p0(i64 40, ptr %4) #5
  %19 = load ptr, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  ret ptr %19
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #2

; Function Attrs: nounwind
declare i32 @rand() #3

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #4

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { nobuiltin allocsize(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 = { 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 #4 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }

!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 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTS4node", !6, i64 0, !6, i64 4, !6, i64 8, !6, i64 12, !6, i64 16, !6, i64 20, !10, i64 24, !10, i64 32}
!13 = !{!12, !6, i64 4}
!14 = !{!12, !6, i64 8}
!15 = !{!12, !6, i64 12}
!16 = !{!12, !6, i64 16}
!17 = !{!12, !6, i64 20}
!18 = !{!12, !10, i64 24}
!19 = !{!12, !10, i64 32}
!20 = !{i64 0, i64 4, !5, i64 4, i64 4, !5, i64 8, i64 4, !5, i64 12, i64 4, !5, i64 16, i64 4, !5, i64 20, i64 4, !5, i64 24, i64 8, !9, i64 32, i64 8, !9}


; 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"

; Function Attrs: mustprogress uwtable
define dso_local noalias noundef nonnull ptr @_Z4initi(i32 noundef %0) local_unnamed_addr #0 {
  %2 = tail call noalias noundef nonnull dereferenceable(40) ptr @_Znwm(i64 noundef 40) #4
  %3 = tail call i32 @rand() #5
  store i32 1, ptr %2, align 8, !tbaa !5
  %.sroa.4.0..sroa_idx = getelementptr inbounds i8, ptr %2, i64 4
  store i32 %0, ptr %.sroa.4.0..sroa_idx, align 4, !tbaa !5
  %.sroa.5.0..sroa_idx = getelementptr inbounds i8, ptr %2, i64 8
  store i32 %3, ptr %.sroa.5.0..sroa_idx, align 8, !tbaa !5
  %.sroa.6.0..sroa_idx = getelementptr inbounds i8, ptr %2, i64 12
  store i32 %0, ptr %.sroa.6.0..sroa_idx, align 4, !tbaa !5
  %.sroa.7.0..sroa_idx = getelementptr inbounds i8, ptr %2, i64 16
  store i32 %0, ptr %.sroa.7.0..sroa_idx, align 8, !tbaa !5
  %.sroa.8.0..sroa_idx = getelementptr inbounds i8, ptr %2, i64 20
  store i32 2147483647, ptr %.sroa.8.0..sroa_idx, align 4, !tbaa !5
  %.sroa.9.0..sroa_idx = getelementptr inbounds i8, ptr %2, i64 24
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %.sroa.9.0..sroa_idx, i8 0, i64 16, i1 false)
  ret ptr %2
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind
declare i32 @rand() local_unnamed_addr #2

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

attributes #0 = { 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 #1 = { nobuiltin allocsize(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 #2 = { 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { builtin allocsize(0) }
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"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass