; LLVM IR from buzz-lang/Buzz :: src/buzz (buzzdarray)

; 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.buzzdarray_s = type { ptr, i64, i32, 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 i32 @buzzdarray_find(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %10

10:                                               ; preds = %35, %3
  %11 = load i32, ptr %8, align 4, !tbaa !9
  %12 = zext i32 %11 to i64
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.buzzdarray_s, ptr %13, i32 0, i32 1
  %15 = load i64, ptr %14, align 8, !tbaa !11
  %16 = icmp slt i64 %12, %15
  br i1 %16, label %17, label %38

17:                                               ; preds = %10
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = load ptr, ptr %7, align 8, !tbaa !5
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.buzzdarray_s, ptr %20, i32 0, i32 0
  %22 = load ptr, ptr %21, align 8, !tbaa !14
  %23 = load i32, ptr %8, align 4, !tbaa !9
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.buzzdarray_s, ptr %24, i32 0, i32 2
  %26 = load i32, ptr %25, align 8, !tbaa !15
  %27 = mul i32 %23, %26
  %28 = zext i32 %27 to i64
  %29 = getelementptr inbounds i8, ptr %22, i64 %28
  %30 = call i32 %18(ptr noundef %19, ptr noundef %29)
  %31 = icmp eq i32 %30, 0
  br i1 %31, label %32, label %34

32:                                               ; preds = %17
  %33 = load i32, ptr %8, align 4, !tbaa !9
  store i32 %33, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %43

34:                                               ; preds = %17
  br label %35

35:                                               ; preds = %34
  %36 = load i32, ptr %8, align 4, !tbaa !9
  %37 = add i32 %36, 1
  store i32 %37, ptr %8, align 4, !tbaa !9
  br label %10, !llvm.loop !16

38:                                               ; preds = %10
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.buzzdarray_s, ptr %39, i32 0, i32 1
  %41 = load i64, ptr %40, align 8, !tbaa !11
  %42 = trunc i64 %41 to i32
  store i32 %42, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %43

43:                                               ; preds = %38, %32
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  %44 = load i32, ptr %4, align 4
  ret i32 %44
}

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, !13, i64 8}
!12 = !{!"buzzdarray_s", !6, i64 0, !13, i64 8, !10, i64 16, !10, i64 20, !6, i64 24}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !6, i64 0}
!15 = !{!12, !10, i64 16}
!16 = distinct !{!16, !17}
!17 = !{!"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: nounwind uwtable
define dso_local i32 @buzzdarray_find(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = load i64, ptr %4, align 8, !tbaa !5
  %6 = icmp sgt i64 %5, 0
  br i1 %6, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3
  %7 = getelementptr inbounds i8, ptr %0, i64 16
  br label %8

8:                                                ; preds = %.lr.ph, %16
  %.014 = phi i32 [ 0, %.lr.ph ], [ %17, %16 ]
  %9 = load ptr, ptr %0, align 8, !tbaa !12
  %10 = load i32, ptr %7, align 8, !tbaa !13
  %11 = mul i32 %10, %.014
  %12 = zext i32 %11 to i64
  %13 = getelementptr inbounds i8, ptr %9, i64 %12
  %14 = tail call i32 %1(ptr noundef %2, ptr noundef %13) #1
  %15 = icmp eq i32 %14, 0
  br i1 %15, label %.loopexit, label %16

16:                                               ; preds = %8
  %17 = add i32 %.014, 1
  %18 = zext i32 %17 to i64
  %19 = load i64, ptr %4, align 8, !tbaa !5
  %20 = icmp sgt i64 %19, %18
  br i1 %20, label %8, label %._crit_edge, !llvm.loop !14

._crit_edge:                                      ; preds = %16, %3
  %.lcssa = phi i64 [ %5, %3 ], [ %19, %16 ]
  %21 = trunc i64 %.lcssa to i32
  br label %.loopexit

.loopexit:                                        ; preds = %8, %._crit_edge
  %.010 = phi i32 [ %21, %._crit_edge ], [ %.014, %8 ]
  ret i32 %.010
}

attributes #0 = { 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 = { 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, !10, i64 8}
!6 = !{!"buzzdarray_s", !7, i64 0, !10, i64 8, !11, i64 16, !11, i64 20, !7, i64 24}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!6, !7, i64 0}
!13 = !{!6, !11, i64 16}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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