; LLVM IR from priyankchheda/algorithms :: _other_languages/c_language/stack/generic_array_implementation (main)

; 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.stack = type { i64, i64, i32, ptr, ptr }

@.str.7 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [2 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: nounwind uwtable
define dso_local void @display(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca i64, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = call i32 (ptr, ...) @printf(ptr noundef @.str.7)
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = call i32 @is_empty(ptr noundef %5)
  %7 = icmp ne i32 %6, 0
  br i1 %7, label %8, label %10

8:                                                ; preds = %1
  %9 = call i32 (ptr, ...) @printf(ptr noundef @.str.8)
  br label %34

10:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store i64 0, ptr %3, align 8, !tbaa !9
  br label %11

11:                                               ; preds = %29, %10
  %12 = load i64, ptr %3, align 8, !tbaa !9
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.stack, ptr %13, i32 0, i32 2
  %15 = load i32, ptr %14, align 8, !tbaa !11
  %16 = sext i32 %15 to i64
  %17 = icmp ule i64 %12, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %32

19:                                               ; preds = %11
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.stack, ptr %20, i32 0, i32 3
  %22 = load ptr, ptr %21, align 8, !tbaa !14
  %23 = load i64, ptr %3, align 8, !tbaa !9
  %24 = mul i64 %23, 4
  %25 = getelementptr inbounds i8, ptr %22, i64 %24
  %26 = load float, ptr %25, align 4, !tbaa !15
  %27 = fpext float %26 to double
  %28 = call i32 (ptr, ...) @printf(ptr noundef @.str.9, double noundef %27)
  br label %29

29:                                               ; preds = %19
  %30 = load i64, ptr %3, align 8, !tbaa !9
  %31 = add i64 %30, 1
  store i64 %31, ptr %3, align 8, !tbaa !9
  br label %11, !llvm.loop !17

32:                                               ; preds = %18
  %33 = call i32 (ptr, ...) @printf(ptr noundef @.str.10)
  br label %34

34:                                               ; preds = %32, %8
  ret void
}

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

declare i32 @is_empty(ptr noundef) #1

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 = { 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 = { 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 = !{!"long", !7, i64 0}
!11 = !{!12, !13, i64 16}
!12 = !{!"stack", !10, i64 0, !10, i64 8, !13, i64 16, !6, i64 24, !6, i64 32}
!13 = !{!"int", !7, i64 0}
!14 = !{!12, !6, i64 24}
!15 = !{!16, !16, i64 0}
!16 = !{!"float", !7, i64 0}
!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"

@.str.7 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [2 x i8], align 1

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

; Function Attrs: nounwind uwtable
define dso_local void @display(ptr noundef %0) local_unnamed_addr #1 {
  %2 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7)
  %3 = tail call i32 @is_empty(ptr noundef %0) #3
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %.preheader, label %.loopexit

.preheader:                                       ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  %5 = getelementptr inbounds i8, ptr %0, i64 24
  br label %6

6:                                                ; preds = %.preheader, %6
  %.06 = phi i64 [ 0, %.preheader ], [ %13, %6 ]
  %7 = load ptr, ptr %5, align 8, !tbaa !5
  %8 = shl i64 %.06, 2
  %9 = getelementptr inbounds i8, ptr %7, i64 %8
  %10 = load float, ptr %9, align 4, !tbaa !12
  %11 = fpext float %10 to double
  %12 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.9, double noundef %11)
  %13 = add i64 %.06, 1
  %14 = load i32, ptr %4, align 8, !tbaa !14
  %15 = sext i32 %14 to i64
  %.not5 = icmp ugt i64 %13, %15
  br i1 %.not5, label %.loopexit, label %6, !llvm.loop !15

.loopexit:                                        ; preds = %6, %1
  %.str.10.sink = phi ptr [ @.str.8, %1 ], [ @.str.10, %6 ]
  %16 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.10.sink)
  ret void
}

declare i32 @is_empty(ptr noundef) local_unnamed_addr #2

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 = { 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 = { "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 }

!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, !11, i64 24}
!6 = !{!"stack", !7, i64 0, !7, i64 8, !10, i64 16, !11, i64 24, !11, i64 32}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"float", !8, i64 0}
!14 = !{!6, !10, i64 16}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass