; LLVM IR from vteromero/VTEnc :: tests/unit (bitstream_test)

; 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.bsreader = type { i64, i32, ptr, ptr, ptr }

@__const.test_bsreader_read_5.buf = external hidden unnamed_addr constant [16 x i8], align 16
@.str.35 = external hidden unnamed_addr constant [47 x i8], align 1
@.str.36 = external hidden unnamed_addr constant [60 x i8], align 1
@.str.37 = external hidden unnamed_addr constant [46 x i8], align 1
@.str.38 = external hidden unnamed_addr constant [60 x i8], align 1
@.str.39 = external hidden unnamed_addr constant [47 x i8], align 1

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

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

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @bsreader_init(ptr noundef, ptr noundef, i64 noundef) #3

; Function Attrs: inlinehint nounwind uwtable
declare hidden i64 @bsreader_read(ptr noundef, i32 noundef) #3

; Function Attrs: nounwind uwtable
define dso_local i32 @test_bsreader_read_5() #4 {
  %1 = alloca i32, align 4
  %2 = alloca %struct.bsreader, align 8
  %3 = alloca [16 x i8], align 16
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 40, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr %3) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %3, ptr align 16 @__const.test_bsreader_read_5.buf, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  store i64 16, ptr %4, align 8, !tbaa !5
  %6 = getelementptr inbounds [16 x i8], ptr %3, i64 0, i64 0
  call void @bsreader_init(ptr noundef %2, ptr noundef %6, i64 noundef 16)
  br label %7

7:                                                ; preds = %0
  %8 = call i64 @bsreader_read(ptr noundef %2, i32 noundef 7)
  %9 = icmp eq i64 %8, 85
  br i1 %9, label %12, label %10

10:                                               ; preds = %7
  %11 = call i32 (ptr, ...) @printf(ptr noundef @.str.35)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %5, align 4
  br label %47

12:                                               ; preds = %7
  br label %13

13:                                               ; preds = %12
  br label %14

14:                                               ; preds = %13
  br label %15

15:                                               ; preds = %14
  %16 = call i64 @bsreader_read(ptr noundef %2, i32 noundef 56)
  %17 = icmp eq i64 %16, 48038396025285290
  br i1 %17, label %20, label %18

18:                                               ; preds = %15
  %19 = call i32 (ptr, ...) @printf(ptr noundef @.str.36)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %5, align 4
  br label %47

20:                                               ; preds = %15
  br label %21

21:                                               ; preds = %20
  br label %22

22:                                               ; preds = %21
  br label %23

23:                                               ; preds = %22
  %24 = call i64 @bsreader_read(ptr noundef %2, i32 noundef 1)
  %25 = icmp eq i64 %24, 0
  br i1 %25, label %28, label %26

26:                                               ; preds = %23
  %27 = call i32 (ptr, ...) @printf(ptr noundef @.str.37)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %5, align 4
  br label %47

28:                                               ; preds = %23
  br label %29

29:                                               ; preds = %28
  br label %30

30:                                               ; preds = %29
  br label %31

31:                                               ; preds = %30
  %32 = call i64 @bsreader_read(ptr noundef %2, i32 noundef 56)
  %33 = icmp eq i64 %32, 24019198012642645
  br i1 %33, label %36, label %34

34:                                               ; preds = %31
  %35 = call i32 (ptr, ...) @printf(ptr noundef @.str.38)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %5, align 4
  br label %47

36:                                               ; preds = %31
  br label %37

37:                                               ; preds = %36
  br label %38

38:                                               ; preds = %37
  br label %39

39:                                               ; preds = %38
  %40 = call i64 @bsreader_read(ptr noundef %2, i32 noundef 8)
  %41 = icmp eq i64 %40, 85
  br i1 %41, label %44, label %42

42:                                               ; preds = %39
  %43 = call i32 (ptr, ...) @printf(ptr noundef @.str.39)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %5, align 4
  br label %47

44:                                               ; preds = %39
  br label %45

45:                                               ; preds = %44
  br label %46

46:                                               ; preds = %45
  store i32 1, ptr %1, align 4
  store i32 1, ptr %5, align 4
  br label %47

47:                                               ; preds = %46, %42, %34, %26, %18, %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 40, ptr %2) #5
  %48 = load i32, ptr %1, align 4
  ret i32 %48
}

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { inlinehint 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 #4 = { 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 #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)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long", !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"

%struct.bsreader = type { i64, i32, ptr, ptr, ptr }

@__const.test_bsreader_read_5.buf = external hidden unnamed_addr constant [16 x i8], align 16
@.str.35 = external hidden unnamed_addr constant [47 x i8], align 1
@.str.36 = external hidden unnamed_addr constant [60 x i8], align 1
@.str.37 = external hidden unnamed_addr constant [46 x i8], align 1
@.str.38 = external hidden unnamed_addr constant [60 x i8], align 1
@.str.39 = external hidden unnamed_addr constant [47 x i8], align 1

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

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

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

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @bsreader_init(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #3

; Function Attrs: inlinehint nounwind uwtable
declare hidden i64 @bsreader_read(ptr noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @test_bsreader_read_5() local_unnamed_addr #4 {
  %1 = alloca %struct.bsreader, align 8
  %2 = alloca [16 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %2) #5
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(16) %2, ptr noundef nonnull align 16 dereferenceable(16) @__const.test_bsreader_read_5.buf, i64 16, i1 false)
  call void @bsreader_init(ptr noundef nonnull %1, ptr noundef nonnull %2, i64 noundef 16)
  %3 = call i64 @bsreader_read(ptr noundef nonnull %1, i32 noundef 7)
  %4 = icmp eq i64 %3, 85
  br i1 %4, label %5, label %.sink.split

5:                                                ; preds = %0
  %6 = call i64 @bsreader_read(ptr noundef nonnull %1, i32 noundef 56)
  %7 = icmp eq i64 %6, 48038396025285290
  br i1 %7, label %8, label %.sink.split

8:                                                ; preds = %5
  %9 = call i64 @bsreader_read(ptr noundef nonnull %1, i32 noundef 1)
  %10 = icmp eq i64 %9, 0
  br i1 %10, label %11, label %.sink.split

11:                                               ; preds = %8
  %12 = call i64 @bsreader_read(ptr noundef nonnull %1, i32 noundef 56)
  %13 = icmp eq i64 %12, 24019198012642645
  br i1 %13, label %14, label %.sink.split

14:                                               ; preds = %11
  %15 = call i64 @bsreader_read(ptr noundef nonnull %1, i32 noundef 8)
  %16 = icmp eq i64 %15, 85
  br i1 %16, label %18, label %.sink.split

.sink.split:                                      ; preds = %14, %11, %8, %5, %0
  %.str.39.sink = phi ptr [ @.str.35, %0 ], [ @.str.36, %5 ], [ @.str.37, %8 ], [ @.str.38, %11 ], [ @.str.39, %14 ]
  %17 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.39.sink)
  br label %18

18:                                               ; preds = %.sink.split, %14
  %.0 = phi i32 [ 1, %14 ], [ 0, %.sink.split ]
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %1) #5
  ret i32 %.0
}

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { inlinehint 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 #4 = { 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 #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: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass