; LLVM IR from Ayon-SSP/The-SDE-Prep :: 1]_Data Structures/3]_Stack (Stackoperation)

; 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 { i32, i32, ptr }

@.str.4 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [19 x i8], align 1

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

; Function Attrs: nounwind uwtable
define dso_local void @isfull(i64 %0, ptr %1) #1 {
  %3 = alloca %struct.stack, align 8
  %4 = getelementptr inbounds { i64, ptr }, ptr %3, i32 0, i32 0
  store i64 %0, ptr %4, align 8
  %5 = getelementptr inbounds { i64, ptr }, ptr %3, i32 0, i32 1
  store ptr %1, ptr %5, align 8
  %6 = getelementptr inbounds %struct.stack, ptr %3, i32 0, i32 1
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = getelementptr inbounds %struct.stack, ptr %3, i32 0, i32 0
  %9 = load i32, ptr %8, align 8, !tbaa !11
  %10 = sub nsw i32 %9, 1
  %11 = icmp eq i32 %7, %10
  br i1 %11, label %12, label %14

12:                                               ; preds = %2
  %13 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  br label %16

14:                                               ; preds = %2
  %15 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  br label %16

16:                                               ; preds = %14, %12
  ret void
}

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 = { 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, !7, i64 4}
!6 = !{!"stack", !7, i64 0, !7, i64 4, !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, !7, i64 0}


; 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.4 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [19 x i8], align 1

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

; Function Attrs: nofree nounwind uwtable
define dso_local void @isfull(i64 %0, ptr nocapture readnone %1) local_unnamed_addr #1 {
  %.sroa.0.0.extract.trunc = trunc i64 %0 to i32
  %.sroa.2.0.extract.shift = lshr i64 %0, 32
  %.sroa.2.0.extract.trunc = trunc nuw i64 %.sroa.2.0.extract.shift to i32
  %3 = add nsw i32 %.sroa.0.0.extract.trunc, -1
  %4 = icmp eq i32 %3, %.sroa.2.0.extract.trunc
  %.str.4..str.5 = select i1 %4, ptr @.str.4, ptr @.str.5
  %5 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.4..str.5)
  ret void
}

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 = { 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)"}


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