; LLVM IR from dbry/wavpack-stream :: src (open_utils)

; 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.WavpackContext = type { %struct.WavpackStreamConfig, ptr, i32, i32, ptr, i32, ptr, ptr, ptr, ptr, ptr, ptr, i64, i64, i64, i64, i64, i64, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, ptr, ptr, i8, ptr, ptr, i32, i32, ptr, [8 x i8], ptr, [80 x i8] }
%struct.WavpackStreamConfig = type { float, float, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, [16 x i8], i8, i32, ptr }
%struct.WavpackReader64 = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

; 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) #0

; Function Attrs: nounwind uwtable
declare hidden i32 @seek_eof_information(ptr noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @WavpackStreamGetMD5Sum(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.WavpackContext, ptr %6, i32 0, i32 0
  %8 = getelementptr inbounds %struct.WavpackStreamConfig, ptr %7, i32 0, i32 5
  %9 = load i32, ptr %8, align 4, !tbaa !9
  %10 = and i32 %9, 134217728
  %11 = icmp ne i32 %10, 0
  br i1 %11, label %12, label %45

12:                                               ; preds = %2
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.WavpackContext, ptr %13, i32 0, i32 0
  %15 = getelementptr inbounds %struct.WavpackStreamConfig, ptr %14, i32 0, i32 15
  %16 = load i8, ptr %15, align 8, !tbaa !15
  %17 = icmp ne i8 %16, 0
  br i1 %17, label %32, label %18

18:                                               ; preds = %12
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.WavpackContext, ptr %19, i32 0, i32 9
  %21 = load ptr, ptr %20, align 8, !tbaa !16
  %22 = getelementptr inbounds %struct.WavpackReader64, ptr %21, i32 0, i32 7
  %23 = load ptr, ptr %22, align 8, !tbaa !17
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.WavpackContext, ptr %24, i32 0, i32 10
  %26 = load ptr, ptr %25, align 8, !tbaa !19
  %27 = call i32 %23(ptr noundef %26)
  %28 = icmp ne i32 %27, 0
  br i1 %28, label %29, label %32

29:                                               ; preds = %18
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = call i32 @seek_eof_information(ptr noundef %30, i32 noundef 0)
  br label %32

32:                                               ; preds = %29, %18, %12
  %33 = load ptr, ptr %4, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.WavpackContext, ptr %33, i32 0, i32 0
  %35 = getelementptr inbounds %struct.WavpackStreamConfig, ptr %34, i32 0, i32 15
  %36 = load i8, ptr %35, align 8, !tbaa !15
  %37 = icmp ne i8 %36, 0
  br i1 %37, label %38, label %44

38:                                               ; preds = %32
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.WavpackContext, ptr %40, i32 0, i32 0
  %42 = getelementptr inbounds %struct.WavpackStreamConfig, ptr %41, i32 0, i32 14
  %43 = getelementptr inbounds [16 x i8], ptr %42, i64 0, i64 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %39, ptr align 8 %43, i64 16, i1 false)
  store i32 1, ptr %3, align 4
  br label %46

44:                                               ; preds = %32
  br label %45

45:                                               ; preds = %44, %2
  store i32 0, ptr %3, align 4
  br label %46

46:                                               ; preds = %45, %38
  %47 = load i32, ptr %3, align 4
  ret i32 %47
}

attributes #0 = { nocallback nofree 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" }

!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, !13, i64 20}
!10 = !{!"WavpackContext", !11, i64 0, !6, i64 88, !13, i64 96, !13, i64 100, !6, i64 104, !13, i64 112, !6, i64 120, !6, i64 128, !6, i64 136, !6, i64 144, !6, i64 152, !6, i64 160, !14, i64 168, !14, i64 176, !14, i64 184, !14, i64 192, !14, i64 200, !14, i64 208, !13, i64 216, !13, i64 220, !13, i64 224, !13, i64 228, !13, i64 232, !13, i64 236, !13, i64 240, !13, i64 244, !13, i64 248, !13, i64 252, !13, i64 256, !13, i64 260, !13, i64 264, !13, i64 268, !13, i64 272, !13, i64 276, !13, i64 280, !13, i64 284, !6, i64 288, !6, i64 296, !7, i64 304, !6, i64 312, !6, i64 320, !13, i64 328, !13, i64 332, !6, i64 336, !7, i64 344, !6, i64 352, !7, i64 360}
!11 = !{!"", !12, i64 0, !12, i64 4, !13, i64 8, !13, i64 12, !13, i64 16, !13, i64 20, !13, i64 24, !13, i64 28, !13, i64 32, !13, i64 36, !13, i64 40, !13, i64 44, !13, i64 48, !13, i64 52, !7, i64 56, !7, i64 72, !13, i64 76, !6, i64 80}
!12 = !{!"float", !7, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = !{!"long", !7, i64 0}
!15 = !{!10, !7, i64 72}
!16 = !{!10, !6, i64 144}
!17 = !{!18, !6, i64 56}
!18 = !{!"", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72}
!19 = !{!10, !6, i64 152}


; 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 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) #0

; Function Attrs: nounwind uwtable
declare hidden i32 @seek_eof_information(ptr noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @WavpackStreamGetMD5Sum(ptr noundef %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #1 {
  %3 = getelementptr inbounds i8, ptr %0, i64 20
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %5 = and i32 %4, 134217728
  %.not = icmp eq i32 %5, 0
  br i1 %.not, label %21, label %6

6:                                                ; preds = %2
  %7 = getelementptr inbounds i8, ptr %0, i64 72
  %8 = load i8, ptr %7, align 8, !tbaa !14
  %.not8 = icmp eq i8 %8, 0
  br i1 %.not8, label %9, label %.thread

9:                                                ; preds = %6
  %10 = getelementptr inbounds i8, ptr %0, i64 144
  %11 = load ptr, ptr %10, align 8, !tbaa !15
  %12 = getelementptr inbounds i8, ptr %11, i64 56
  %13 = load ptr, ptr %12, align 8, !tbaa !16
  %14 = getelementptr inbounds i8, ptr %0, i64 152
  %15 = load ptr, ptr %14, align 8, !tbaa !18
  %16 = tail call i32 %13(ptr noundef %15) #2
  %.not9 = icmp eq i32 %16, 0
  br i1 %.not9, label %19, label %17

17:                                               ; preds = %9
  %18 = tail call i32 @seek_eof_information(ptr noundef nonnull %0, i32 noundef 0)
  br label %19

19:                                               ; preds = %17, %9
  %.pr = load i8, ptr %7, align 8, !tbaa !14
  %.not10 = icmp eq i8 %.pr, 0
  br i1 %.not10, label %21, label %.thread

.thread:                                          ; preds = %6, %19
  %20 = getelementptr inbounds i8, ptr %0, i64 56
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(16) %1, ptr noundef nonnull align 8 dereferenceable(16) %20, i64 16, i1 false)
  br label %21

21:                                               ; preds = %2, %19, %.thread
  %.0 = phi i32 [ 1, %.thread ], [ 0, %19 ], [ 0, %2 ]
  ret i32 %.0
}

attributes #0 = { mustprogress nocallback nofree 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, !11, i64 20}
!6 = !{!"WavpackContext", !7, i64 0, !12, i64 88, !11, i64 96, !11, i64 100, !12, i64 104, !11, i64 112, !12, i64 120, !12, i64 128, !12, i64 136, !12, i64 144, !12, i64 152, !12, i64 160, !13, i64 168, !13, i64 176, !13, i64 184, !13, i64 192, !13, i64 200, !13, i64 208, !11, i64 216, !11, i64 220, !11, i64 224, !11, i64 228, !11, i64 232, !11, i64 236, !11, i64 240, !11, i64 244, !11, i64 248, !11, i64 252, !11, i64 256, !11, i64 260, !11, i64 264, !11, i64 268, !11, i64 272, !11, i64 276, !11, i64 280, !11, i64 284, !12, i64 288, !12, i64 296, !9, i64 304, !12, i64 312, !12, i64 320, !11, i64 328, !11, i64 332, !12, i64 336, !9, i64 344, !12, i64 352, !9, i64 360}
!7 = !{!"", !8, i64 0, !8, i64 4, !11, i64 8, !11, i64 12, !11, i64 16, !11, i64 20, !11, i64 24, !11, i64 28, !11, i64 32, !11, i64 36, !11, i64 40, !11, i64 44, !11, i64 48, !11, i64 52, !9, i64 56, !9, i64 72, !11, i64 76, !12, i64 80}
!8 = !{!"float", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!"int", !9, i64 0}
!12 = !{!"any pointer", !9, i64 0}
!13 = !{!"long", !9, i64 0}
!14 = !{!6, !9, i64 72}
!15 = !{!6, !12, i64 144}
!16 = !{!17, !12, i64 56}
!17 = !{!"", !12, i64 0, !12, i64 8, !12, i64 16, !12, i64 24, !12, i64 32, !12, i64 40, !12, i64 48, !12, i64 56, !12, i64 64, !12, i64 72}
!18 = !{!6, !12, i64 152}


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