; LLVM IR from AllAlgorithms/c :: algorithms/data-structures (Add_Ploynomial_Linklist)

; 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, float, 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: nounwind uwtable
define dso_local ptr @insert_end(ptr noundef %0, float noundef %1, i32 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca float, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store float %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !11
  %11 = load float, ptr %6, align 4, !tbaa !9
  %12 = fcmp une float %11, 0.000000e+00
  br i1 %12, label %15, label %13

13:                                               ; preds = %3
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %14, ptr %4, align 8
  br label %47

15:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %16 = call noalias ptr @malloc(i64 noundef 16) #4
  store ptr %16, ptr %8, align 8, !tbaa !5
  %17 = load float, ptr %6, align 4, !tbaa !9
  %18 = load ptr, ptr %8, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.node, ptr %18, i32 0, i32 1
  store float %17, ptr %19, align 4, !tbaa !13
  %20 = load i32, ptr %7, align 4, !tbaa !11
  %21 = load ptr, ptr %8, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.node, ptr %21, i32 0, i32 0
  store i32 %20, ptr %22, align 8, !tbaa !15
  %23 = load ptr, ptr %8, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.node, ptr %23, i32 0, i32 2
  store ptr null, ptr %24, align 8, !tbaa !16
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = icmp eq ptr %25, null
  br i1 %26, label %27, label %30

27:                                               ; preds = %15
  %28 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %28, ptr %5, align 8, !tbaa !5
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %29, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %46

30:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %31, ptr %10, align 8, !tbaa !5
  br label %32

32:                                               ; preds = %37, %30
  %33 = load ptr, ptr %10, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.node, ptr %33, i32 0, i32 2
  %35 = load ptr, ptr %34, align 8, !tbaa !16
  %36 = icmp ne ptr %35, null
  br i1 %36, label %37, label %41

37:                                               ; preds = %32
  %38 = load ptr, ptr %10, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.node, ptr %38, i32 0, i32 2
  %40 = load ptr, ptr %39, align 8, !tbaa !16
  store ptr %40, ptr %10, align 8, !tbaa !5
  br label %32, !llvm.loop !17

41:                                               ; preds = %32
  %42 = load ptr, ptr %8, align 8, !tbaa !5
  %43 = load ptr, ptr %10, align 8, !tbaa !5
  %44 = getelementptr inbounds %struct.node, ptr %43, i32 0, i32 2
  store ptr %42, ptr %44, align 8, !tbaa !16
  %45 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %45, ptr %4, align 8
  store i32 1, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  br label %46

46:                                               ; preds = %41, %27
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %47

47:                                               ; preds = %46, %13
  %48 = load ptr, ptr %4, align 8
  ret ptr %48
}

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { nounwind 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 }
attributes #4 = { nounwind 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"float", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !10, i64 4}
!14 = !{!"node", !12, i64 0, !10, i64 4, !6, i64 8}
!15 = !{!14, !12, i64 0}
!16 = !{!14, !6, i64 8}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


; 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: nofree nounwind uwtable
define dso_local noundef ptr @insert_end(ptr noundef %0, float noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = fcmp une float %1, 0.000000e+00
  br i1 %4, label %5, label %14

5:                                                ; preds = %3
  %6 = tail call noalias dereferenceable_or_null(16) ptr @malloc(i64 noundef 16) #2
  %7 = getelementptr inbounds i8, ptr %6, i64 4
  store float %1, ptr %7, align 4, !tbaa !5
  store i32 %2, ptr %6, align 8, !tbaa !12
  %8 = getelementptr inbounds i8, ptr %6, i64 8
  store ptr null, ptr %8, align 8, !tbaa !13
  %9 = icmp eq ptr %0, null
  br i1 %9, label %14, label %.preheader

.preheader:                                       ; preds = %5, %.preheader
  %.0 = phi ptr [ %11, %.preheader ], [ %0, %5 ]
  %10 = getelementptr inbounds i8, ptr %.0, i64 8
  %11 = load ptr, ptr %10, align 8, !tbaa !13
  %.not = icmp eq ptr %11, null
  br i1 %.not, label %12, label %.preheader, !llvm.loop !14

12:                                               ; preds = %.preheader
  %13 = getelementptr inbounds i8, ptr %.0, i64 8
  store ptr %6, ptr %13, align 8, !tbaa !13
  br label %14

14:                                               ; preds = %12, %5, %3
  %.1 = phi ptr [ %0, %3 ], [ %0, %12 ], [ %6, %5 ]
  ret ptr %.1
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

attributes #0 = { nofree 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 #1 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 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, !10, i64 4}
!6 = !{!"node", !7, i64 0, !10, i64 4, !11, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"float", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!6, !7, i64 0}
!13 = !{!6, !11, i64 8}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LICMPass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass