; LLVM IR from DanEngelbrecht/longtail :: lib/brotli/ext/dec (decode)

; 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: nounwind uwtable
define dso_local ptr @BrotliDecoderCreateInstance(ptr noundef %0, ptr noundef %1, ptr noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %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 8, ptr %8) #5
  store ptr null, ptr %8, align 8, !tbaa !5
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = icmp ne ptr %10, null
  br i1 %11, label %17, label %12

12:                                               ; preds = %3
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = icmp ne ptr %13, null
  br i1 %14, label %17, label %15

15:                                               ; preds = %12
  %16 = call noalias ptr @malloc(i64 noundef 5744) #6
  store ptr %16, ptr %8, align 8, !tbaa !5
  br label %28

17:                                               ; preds = %12, %3
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = icmp ne ptr %18, null
  br i1 %19, label %20, label %27

20:                                               ; preds = %17
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = icmp ne ptr %21, null
  br i1 %22, label %23, label %27

23:                                               ; preds = %20
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = load ptr, ptr %7, align 8, !tbaa !5
  %26 = call ptr %24(ptr noundef %25, i64 noundef 5744)
  store ptr %26, ptr %8, align 8, !tbaa !5
  br label %27

27:                                               ; preds = %23, %20, %17
  br label %28

28:                                               ; preds = %27, %15
  %29 = load ptr, ptr %8, align 8, !tbaa !5
  %30 = icmp eq ptr %29, null
  br i1 %30, label %31, label %32

31:                                               ; preds = %28
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %61

32:                                               ; preds = %28
  %33 = load ptr, ptr %8, align 8, !tbaa !5
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = load ptr, ptr %6, align 8, !tbaa !5
  %36 = load ptr, ptr %7, align 8, !tbaa !5
  %37 = call i32 @BrotliDecoderStateInit(ptr noundef %33, ptr noundef %34, ptr noundef %35, ptr noundef %36)
  %38 = icmp ne i32 %37, 0
  br i1 %38, label %59, label %39

39:                                               ; preds = %32
  %40 = load ptr, ptr %5, align 8, !tbaa !5
  %41 = icmp ne ptr %40, null
  br i1 %41, label %47, label %42

42:                                               ; preds = %39
  %43 = load ptr, ptr %6, align 8, !tbaa !5
  %44 = icmp ne ptr %43, null
  br i1 %44, label %47, label %45

45:                                               ; preds = %42
  %46 = load ptr, ptr %8, align 8, !tbaa !5
  call void @free(ptr noundef %46) #5
  br label %58

47:                                               ; preds = %42, %39
  %48 = load ptr, ptr %5, align 8, !tbaa !5
  %49 = icmp ne ptr %48, null
  br i1 %49, label %50, label %57

50:                                               ; preds = %47
  %51 = load ptr, ptr %6, align 8, !tbaa !5
  %52 = icmp ne ptr %51, null
  br i1 %52, label %53, label %57

53:                                               ; preds = %50
  %54 = load ptr, ptr %6, align 8, !tbaa !5
  %55 = load ptr, ptr %7, align 8, !tbaa !5
  %56 = load ptr, ptr %8, align 8, !tbaa !5
  call void %54(ptr noundef %55, ptr noundef %56)
  br label %57

57:                                               ; preds = %53, %50, %47
  br label %58

58:                                               ; preds = %57, %45
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %61

59:                                               ; preds = %32
  %60 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %60, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %61

61:                                               ; preds = %59, %58, %31
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  %62 = load ptr, ptr %4, align 8
  ret ptr %62
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

declare hidden i32 @BrotliDecoderStateInit(ptr noundef, ptr noundef, ptr noundef, ptr noundef) #3

; Function Attrs: nounwind
declare void @free(ptr noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind allocsize(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 = { "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 #4 = { 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 #5 = { nounwind }
attributes #6 = { nounwind allocsize(0) }

!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"}


; 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 ptr @BrotliDecoderCreateInstance(ptr noundef %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = icmp ne ptr %0, null
  %5 = icmp ne ptr %1, null
  %or.cond = or i1 %4, %5
  br i1 %or.cond, label %8, label %6

6:                                                ; preds = %3
  %7 = tail call noalias dereferenceable_or_null(5744) ptr @malloc(i64 noundef 5744) #4
  br label %11

8:                                                ; preds = %3
  %or.cond3 = and i1 %4, %5
  br i1 %or.cond3, label %9, label %.thread

9:                                                ; preds = %8
  %10 = tail call ptr %0(ptr noundef %2, i64 noundef 5744) #5
  br label %11

11:                                               ; preds = %9, %6
  %.0 = phi ptr [ %10, %9 ], [ %7, %6 ]
  %12 = icmp eq ptr %.0, null
  br i1 %12, label %.thread, label %13

13:                                               ; preds = %11
  %14 = tail call i32 @BrotliDecoderStateInit(ptr noundef nonnull %.0, ptr noundef %0, ptr noundef %1, ptr noundef %2) #5
  %.not = icmp eq i32 %14, 0
  br i1 %.not, label %15, label %.thread

15:                                               ; preds = %13
  br i1 %or.cond, label %17, label %16

16:                                               ; preds = %15
  tail call void @free(ptr noundef nonnull %.0) #5
  br label %.thread

17:                                               ; preds = %15
  %or.cond7 = and i1 %4, %5
  br i1 %or.cond7, label %18, label %.thread

18:                                               ; preds = %17
  tail call void %1(ptr noundef %2, ptr noundef nonnull %.0) #5
  br label %.thread

.thread:                                          ; preds = %8, %13, %16, %18, %17, %11
  %.028 = phi ptr [ null, %11 ], [ null, %17 ], [ null, %18 ], [ null, %16 ], [ %.0, %13 ], [ null, %8 ]
  ret ptr %.028
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

declare hidden i32 @BrotliDecoderStateInit(ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #3

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 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 #4 = { nounwind allocsize(0) }
attributes #5 = { 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)"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,SROAPass,SimplifyCFGPass,TailCallElimPass