; LLVM IR from jspd-group/pegit :: src (mz)

; 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.z_stream_s = type { ptr, i32, i64, ptr, i32, i64, ptr, ptr, ptr, ptr, ptr, i32, i64, i64 }
%struct.strbuf = type { i64, i64, ptr }

@.str.9 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @zerr(i32 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: nounwind uwtable
declare dso_local void @uncompress_setup(ptr noundef, ptr noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @uncompress_chunk(ptr noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @decompress(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca %struct.z_stream_s, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca %struct.strbuf, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 112, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 0, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %9) #3
  call void @strbuf_init(ptr noundef %9, i64 noundef 0)
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  call void @uncompress_setup(ptr noundef %6, ptr noundef %11, ptr noundef %12)
  %13 = call i32 @inflateInit_(ptr noundef %6, ptr noundef @.str.9, i32 noundef 112)
  store i32 %13, ptr %7, align 4, !tbaa !9
  %14 = load i32, ptr %7, align 4, !tbaa !9
  %15 = icmp ne i32 %14, 0
  br i1 %15, label %16, label %18

16:                                               ; preds = %2
  %17 = load i32, ptr %7, align 4, !tbaa !9
  call void @zerr(i32 noundef %17)
  br label %18

18:                                               ; preds = %16, %2
  br label %19

19:                                               ; preds = %28, %18
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = call i32 @uncompress_chunk(ptr noundef %6, ptr noundef %20)
  store i32 %21, ptr %7, align 4, !tbaa !9
  %22 = load i32, ptr %7, align 4, !tbaa !9
  %23 = icmp eq i32 %22, -5
  br i1 %23, label %24, label %27

24:                                               ; preds = %19
  %25 = call i32 @inflateEnd(ptr noundef %6)
  %26 = load i32, ptr %7, align 4, !tbaa !9
  store i32 %26, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %34

27:                                               ; preds = %19
  br label %28

28:                                               ; preds = %27
  %29 = load i32, ptr %7, align 4, !tbaa !9
  %30 = icmp ne i32 %29, 1
  br i1 %30, label %19, label %31, !llvm.loop !11

31:                                               ; preds = %28
  %32 = call i32 @inflateEnd(ptr noundef %6)
  %33 = load i32, ptr %7, align 4, !tbaa !9
  store i32 %33, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %34

34:                                               ; preds = %31, %24
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 112, ptr %6) #3
  %35 = load i32, ptr %3, align 4
  ret i32 %35
}

declare void @strbuf_init(ptr noundef, i64 noundef) #2

declare i32 @inflateInit_(ptr noundef, ptr noundef, i32 noundef) #2

declare i32 @inflateEnd(ptr noundef) #2

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 = { "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 = { 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 = distinct !{!11, !12}
!12 = !{!"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.z_stream_s = type { ptr, i32, i64, ptr, i32, i64, ptr, ptr, ptr, ptr, ptr, i32, i64, i64 }
%struct.strbuf = type { i64, i64, ptr }

@.str.9 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @zerr(i32 noundef) 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: nounwind uwtable
declare dso_local void @uncompress_setup(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @uncompress_chunk(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @decompress(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = alloca %struct.z_stream_s, align 8
  %4 = alloca %struct.strbuf, align 8
  call void @llvm.lifetime.start.p0(i64 112, ptr nonnull %3) #3
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #3
  call void @strbuf_init(ptr noundef nonnull %4, i64 noundef 0) #3
  call void @uncompress_setup(ptr noundef nonnull %3, ptr noundef %0, ptr noundef %1)
  %5 = call i32 @inflateInit_(ptr noundef nonnull %3, ptr noundef nonnull @.str.9, i32 noundef 112) #3
  %.not = icmp eq i32 %5, 0
  br i1 %.not, label %.preheader, label %6

6:                                                ; preds = %2
  call void @zerr(i32 noundef %5)
  br label %.preheader

.preheader:                                       ; preds = %6, %2
  br label %7

7:                                                ; preds = %.preheader, %7
  %8 = call i32 @uncompress_chunk(ptr noundef nonnull %3, ptr noundef %1)
  switch i32 %8, label %7 [
    i32 -5, label %9
    i32 1, label %9
  ]

9:                                                ; preds = %7, %7
  %10 = call i32 @inflateEnd(ptr noundef nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 112, ptr nonnull %3) #3
  ret i32 %8
}

declare void @strbuf_init(ptr noundef, i64 noundef) local_unnamed_addr #2

declare i32 @inflateInit_(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #2

declare i32 @inflateEnd(ptr noundef) local_unnamed_addr #2

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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass