; LLVM IR from Overload-Technologies/Overload :: Dependencies/assimp/code/AssetLib/FBX (FBXUtil)

; 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"

; 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: mustprogress nounwind uwtable
define dso_local noundef i64 @_ZN6Assimp3FBX4Util24ComputeDecodedSizeBase64EPKcm(ptr noundef %0, i64 noundef %1) #1 {
  %3 = alloca i64, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  %9 = load i64, ptr %5, align 8, !tbaa !9
  %10 = icmp ult i64 %9, 2
  br i1 %10, label %11, label %12

11:                                               ; preds = %2
  store i64 0, ptr %3, align 8
  br label %42

12:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = load i64, ptr %5, align 8, !tbaa !9
  %15 = sub i64 %14, 1
  %16 = getelementptr inbounds i8, ptr %13, i64 %15
  %17 = load i8, ptr %16, align 1, !tbaa !11
  %18 = sext i8 %17 to i32
  %19 = icmp eq i32 %18, 61
  %20 = zext i1 %19 to i64
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = load i64, ptr %5, align 8, !tbaa !9
  %23 = sub i64 %22, 2
  %24 = getelementptr inbounds i8, ptr %21, i64 %23
  %25 = load i8, ptr %24, align 1, !tbaa !11
  %26 = sext i8 %25 to i32
  %27 = icmp eq i32 %26, 61
  %28 = zext i1 %27 to i64
  %29 = add i64 %20, %28
  store i64 %29, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %30 = load i64, ptr %5, align 8, !tbaa !9
  %31 = mul i64 %30, 3
  %32 = lshr i64 %31, 2
  store i64 %32, ptr %7, align 8, !tbaa !9
  %33 = load i64, ptr %7, align 8, !tbaa !9
  %34 = load i64, ptr %6, align 8, !tbaa !9
  %35 = icmp ult i64 %33, %34
  br i1 %35, label %36, label %37

36:                                               ; preds = %12
  store i64 0, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %41

37:                                               ; preds = %12
  %38 = load i64, ptr %7, align 8, !tbaa !9
  %39 = load i64, ptr %6, align 8, !tbaa !9
  %40 = sub i64 %38, %39
  store i64 %40, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %41

41:                                               ; preds = %37, %36
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  br label %42

42:                                               ; preds = %41, %11
  %43 = load i64, ptr %3, align 8
  ret i64 %43
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!7, !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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local noundef range(i64 -2, 4611686018427387904) i64 @_ZN6Assimp3FBX4Util24ComputeDecodedSizeBase64EPKcm(ptr nocapture noundef readonly %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = icmp ult i64 %1, 2
  br i1 %3, label %17, label %4

4:                                                ; preds = %2
  %5 = getelementptr i8, ptr %0, i64 %1
  %6 = getelementptr i8, ptr %5, i64 -1
  %7 = load i8, ptr %6, align 1, !tbaa !5
  %8 = icmp eq i8 %7, 61
  %9 = zext i1 %8 to i64
  %10 = getelementptr i8, ptr %5, i64 -2
  %11 = load i8, ptr %10, align 1, !tbaa !5
  %12 = icmp eq i8 %11, 61
  %13 = zext i1 %12 to i64
  %14 = add nuw nsw i64 %13, %9
  %15 = mul i64 %1, 3
  %16 = lshr i64 %15, 2
  %.0 = tail call i64 @llvm.usub.sat.i64(i64 %16, i64 %14)
  br label %17

17:                                               ; preds = %2, %4
  %.1 = phi i64 [ %.0, %4 ], [ 0, %2 ]
  ret i64 %.1
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.usub.sat.i64(i64, i64) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn 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" }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


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