; LLVM IR from overnote/over-algorithm :: code/code-c-like/01-list/01-SqList.ll (Z10UpdateElemR6SqListii)

; 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.SqList = type { [5 x i32], i32 }

@.str.6 = external hidden unnamed_addr constant [23 x i8], align 1

declare i32 @printf(ptr noundef, ...) #0

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z10UpdateElemR6SqListii(ptr noundef nonnull align 4 dereferenceable(24) %0, i32 noundef %1, i32 noundef %2) #1 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  %8 = load i32, ptr %6, align 4, !tbaa !9
  %9 = icmp slt i32 %8, 1
  br i1 %9, label %16, label %10

10:                                               ; preds = %3
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.SqList, ptr %12, i32 0, i32 1
  %14 = load i32, ptr %13, align 4, !tbaa !11
  %15 = icmp sgt i32 %11, %14
  br i1 %15, label %16, label %18

16:                                               ; preds = %10, %3
  %17 = call i32 (ptr, ...) @printf(ptr noundef @.str.6)
  store i1 false, ptr %4, align 1
  br label %26

18:                                               ; preds = %10
  %19 = load i32, ptr %7, align 4, !tbaa !9
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.SqList, ptr %20, i32 0, i32 0
  %22 = load i32, ptr %6, align 4, !tbaa !9
  %23 = sub nsw i32 %22, 1
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds [5 x i32], ptr %21, i64 0, i64 %24
  store i32 %19, ptr %25, align 4, !tbaa !9
  store i1 true, ptr %4, align 1
  br label %26

26:                                               ; preds = %18, %16
  %27 = load i1, ptr %4, align 1
  ret i1 %27
}

attributes #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 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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 20}
!12 = !{!"_ZTS6SqList", !7, i64 0, !10, i64 20}


; 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"

@.str.6 = external hidden unnamed_addr constant [23 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind uwtable
define dso_local noundef zeroext i1 @_Z10UpdateElemR6SqListii(ptr nocapture noundef nonnull align 4 dereferenceable(24) %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #1 {
  %4 = icmp sgt i32 %1, 0
  %5 = getelementptr inbounds i8, ptr %0, i64 20
  %6 = load i32, ptr %5, align 4
  %7 = icmp sge i32 %6, %1
  %or.cond.not = select i1 %4, i1 %7, i1 false
  br i1 %or.cond.not, label %10, label %8

8:                                                ; preds = %3
  %9 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6)
  br label %14

10:                                               ; preds = %3
  %11 = add nsw i32 %1, -1
  %12 = zext nneg i32 %11 to i64
  %13 = getelementptr inbounds [5 x i32], ptr %0, i64 0, i64 %12
  store i32 %2, ptr %13, align 4, !tbaa !5
  br label %14

14:                                               ; preds = %10, %8
  ret i1 %or.cond.not
}

attributes #0 = { 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 #1 = { mustprogress 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" }

!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: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass