; LLVM IR from CactiLab/Sherloc-Cortex-M-CFVD :: Sherloc_runtime/evaluation/src/sglib_listinsertsort (listinsertsort)

; 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.ilist = type { i32, 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 @sglib_iListType_find_member(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  store i32 1, ptr %7, align 4, !tbaa !9
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %8, ptr %6, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %24, %2
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = icmp ne ptr %10, null
  br i1 %11, label %12, label %21

12:                                               ; preds = %9
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.ilist, ptr %13, i32 0, i32 0
  %15 = load i32, ptr %14, align 8, !tbaa !11
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.ilist, ptr %16, i32 0, i32 0
  %18 = load i32, ptr %17, align 8, !tbaa !11
  %19 = sub nsw i32 %15, %18
  store i32 %19, ptr %7, align 4, !tbaa !9
  %20 = icmp slt i32 %19, 0
  br label %21

21:                                               ; preds = %12, %9
  %22 = phi i1 [ false, %9 ], [ %20, %12 ]
  br i1 %22, label %23, label %28

23:                                               ; preds = %21
  br label %24

24:                                               ; preds = %23
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.ilist, ptr %25, i32 0, i32 1
  %27 = load ptr, ptr %26, align 8, !tbaa !13
  store ptr %27, ptr %6, align 8, !tbaa !5
  br label %9, !llvm.loop !14

28:                                               ; preds = %21
  %29 = load i32, ptr %7, align 4, !tbaa !9
  %30 = icmp ne i32 %29, 0
  br i1 %30, label %31, label %32

31:                                               ; preds = %28
  store ptr null, ptr %5, align 8, !tbaa !5
  br label %34

32:                                               ; preds = %28
  %33 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %33, ptr %5, align 8, !tbaa !5
  br label %34

34:                                               ; preds = %32, %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret ptr %35
}

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 }

!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 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"ilist", !10, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 8}
!14 = distinct !{!14, !15}
!15 = !{!"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 norecurse nosync nounwind memory(read, inaccessiblemem: none) uwtable
define dso_local noundef ptr @sglib_iListType_find_member(ptr noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %.not17 = icmp eq ptr %0, null
  br i1 %.not17, label %.critedge.thread, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %3 = load i32, ptr %1, align 8, !tbaa !5
  br label %4

4:                                                ; preds = %.lr.ph, %7
  %.0718 = phi ptr [ %0, %.lr.ph ], [ %9, %7 ]
  %5 = load i32, ptr %.0718, align 8, !tbaa !5
  %6 = icmp slt i32 %5, %3
  br i1 %6, label %7, label %.critedge

7:                                                ; preds = %4
  %8 = getelementptr inbounds i8, ptr %.0718, i64 8
  %9 = load ptr, ptr %8, align 8, !tbaa !11
  %.not = icmp eq ptr %9, null
  br i1 %.not, label %.critedge.thread, label %4, !llvm.loop !12

.critedge:                                        ; preds = %4
  %.not11 = icmp eq i32 %5, %3
  %cond.fr = freeze i1 %.not11
  %spec.select = select i1 %cond.fr, ptr %.0718, ptr null
  br label %.critedge.thread

.critedge.thread:                                 ; preds = %7, %2, %.critedge
  %10 = phi ptr [ %spec.select, %.critedge ], [ null, %2 ], [ null, %7 ]
  ret ptr %10
}

attributes #0 = { nofree norecurse nosync nounwind memory(read, inaccessiblemem: none) 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" }

!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, !7, i64 0}
!6 = !{!"ilist", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


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