; LLVM IR from vectozavr/3dzavr :: engine/io/microui (microui)

; 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.mu_PoolItem = type { i32, i32 }

; 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 @mu_pool_get(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3) #1 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !9
  store i32 %3, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #2
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %13

13:                                               ; preds = %29, %4
  %14 = load i32, ptr %10, align 4, !tbaa !9
  %15 = load i32, ptr %8, align 4, !tbaa !9
  %16 = icmp slt i32 %14, %15
  br i1 %16, label %17, label %32

17:                                               ; preds = %13
  %18 = load ptr, ptr %7, align 8, !tbaa !5
  %19 = load i32, ptr %10, align 4, !tbaa !9
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds %struct.mu_PoolItem, ptr %18, i64 %20
  %22 = getelementptr inbounds %struct.mu_PoolItem, ptr %21, i32 0, i32 0
  %23 = load i32, ptr %22, align 4, !tbaa !11
  %24 = load i32, ptr %9, align 4, !tbaa !9
  %25 = icmp eq i32 %23, %24
  br i1 %25, label %26, label %28

26:                                               ; preds = %17
  %27 = load i32, ptr %10, align 4, !tbaa !9
  store i32 %27, ptr %5, align 4
  store i32 1, ptr %11, align 4
  br label %33

28:                                               ; preds = %17
  br label %29

29:                                               ; preds = %28
  %30 = load i32, ptr %10, align 4, !tbaa !9
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %10, align 4, !tbaa !9
  br label %13, !llvm.loop !13

32:                                               ; preds = %13
  store i32 -1, ptr %5, align 4
  store i32 1, ptr %11, align 4
  br label %33

33:                                               ; preds = %32, %26
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  %34 = load i32, ptr %5, align 4
  ret i32 %34
}

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 = !{!"", !10, i64 0, !10, i64 4}
!13 = distinct !{!13, !14}
!14 = !{!"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"

%struct.mu_PoolItem = type { i32, i32 }

; Function Attrs: nofree norecurse nosync nounwind memory(argmem: read) uwtable
define dso_local i32 @mu_pool_get(ptr nocapture noundef readnone %0, ptr nocapture noundef readonly %1, i32 noundef %2, i32 noundef %3) local_unnamed_addr #0 {
  %5 = icmp sgt i32 %2, 0
  br i1 %5, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %4
  %wide.trip.count = zext nneg i32 %2 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %9
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %9 ]
  %6 = getelementptr inbounds %struct.mu_PoolItem, ptr %1, i64 %indvars.iv
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = icmp eq i32 %7, %3
  br i1 %8, label %._crit_edge.loopexit.split.loop.exit13, label %9

9:                                                ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !10

._crit_edge.loopexit.split.loop.exit13:           ; preds = %.lr.ph
  %10 = trunc nuw nsw i64 %indvars.iv to i32
  br label %._crit_edge

._crit_edge:                                      ; preds = %9, %._crit_edge.loopexit.split.loop.exit13, %4
  %.08 = phi i32 [ -1, %4 ], [ %10, %._crit_edge.loopexit.split.loop.exit13 ], [ -1, %9 ]
  ret i32 %.08
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: read) 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 = !{!"", !7, i64 0, !7, i64 4}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


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